Incinerator with ceramics filter

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to improvement of an incinerator for burning up an object to be incinerated such as raw garbage, general refuse, expanded polystyrene and others generated from a manufacturing plant, a wholesale market, a general firm, a general retail shop, a general house and others.

2. Description of the Prior Art

Conventionally, an object to be incinerated such as raw garbage, general refuse and others generated from a manufacturing plant, a wholesale market, a general firm, a general retail shop, a general house and others is burned up in an incinerator as it is. That is, as shown in

FIG. 40

, in case of burning up an object to be incinerated

78

g

in an incinerator

78

, the object to be incinerated

78

g

is burned by a method for forcibly sending an air stream by a blast fan or blower

78

f

installed in the vicinity of an air intake

78

h.

In other words, as shown in

FIG. 40

, since the object to be incinerated

78

g

set in the incinerator

78

is burned up by the system for forcibly sending an air stream to burn and incinerate the object to be incinerated

78

g

such as the incinerator

78

, air is forcibly sent from the air intake

78

h

toward the object to be incinerated

78

g

for combustion by using a blast fan or blower

78

f.

In the method for forcibly sending the air to burn up the object to be incinerated

78

g

in this manner, a part of the forcibly sent air collides with a surface

78

i

of the object to be incinerated

78

g

. The air which has collided with the surface

78

i

of the object to be incinerated

78

g

is returned in a direction of the air intake

78

h

as indicated by an arrow and convected in the vicinity of the blast fan or blower

78

f

, which results in a position where strong pressure air

78

e

is generated between the object to be incinerated

78

g

and the blast fan or blower

78

f

. The part of the air forcibly sent from the blast fan or blower

78

f

into the incinerator

78

passes through the both side surfaces of the object to be incinerated

3

to be emitted from an outlet

78

a

in the air.

As described above, since a pore

78

d

formed to the object to be incinerated

78

g

is minute, the loss of the air forcibly sent by the blast fan or blower

78

f

is high due to a pressure by air blasting, and the air hence collides with only the surface

78

i

of the object to be incinerated

78

g

. Therefore, the air does not enter the inside of the object to be incinerated

78

g

, and the inside of the object to be incinerated

78

g

is not completely burned up.

Further, a rear surface and rear portion

78

c

of the object to be incinerated

78

g

which is the part of the object to be incinerated

78

g

opposed to the outlet

78

a

become anaerobic. At the outlet

78

a

, only the weak pressure air

78

b

is obtained. Therefore, although only the outside of the object to be incinerated

78

g

is burned up, the inside of the object to be incinerated

3

is not completely incinerated.

However, since a general incinerator has a low combustion temperature, combustion smoke and exhaust gas containing harmful substances such as dioxin and the like is emitted. Additionally, since incinerated ash and the like discharged by burning the object to be incinerated includes harmful substances, the incinerated ash subjected to combustion can not be disadvantageously reused.

In case of burning up the objected to be incinerated by the incinerator, general garbage, raw refuse, paper, as well as a carrier bag in a convenience shop, general garbage made of plastic which generates toxic gases, and a plastic bottle or expanded polystyrene which is said to be a factor for generating dioxin are often collectively put in the incinerator to be incinerated without being separated. In particular, a large amount of water contained in them may lower a combustion temperature, and dioxin and the like is apt to be generated.

It is, therefore, an object of the present invention is to provide an incinerator having a filter made of ceramics (which will be referred to as a ceramics filter hereunder) attached thereto (which will be referred to as an incinerator with a ceramics filter hereinafter) which does not emit dioxin as a harmful substance even if waste such as raw refuse, general garbage, expanded polystyrene and the like produced from houses or firms is incinerated.

SUMMARY OF THE INVENTION

In order to achieve this aim, the present invention provides: an incinerator with a ceramics filter, wherein air intakes to which a check valve is provided are formed on right and left lower portions of the incinerator and an oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a suction port being form to an upper portion of the tabular ceramics filter; an incinerator with a ceramics filter, wherein an air intake to which a check valve is provided is formed to a lower portion of the incinerator and an ashpan is accessibly set, an oast being set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a suction port being form to an upper portion of the tabular ceramics filter; an incinerator with a ceramics filter, wherein an ashpan is accessibly set to a lower portion of a combustion portion and an oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a cyclone which inserts an end of an air duct of a blower to a lower edge of an exhaust duct attached to the cyclone and has a dust receiver being attached to the incinerator having a suction port formed thereto above the tabular ceramics filter; an incinerator with a ceramics filter, wherein an intake pipe bent under a combustion portion is connected to an ash receiving chamber in which an ashpan is accessibly set and a oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a suction portion consisting of a cover and a cyclone which inserts an end of an air duct of a blower to a lower end of an exhaust duct attached to the cyclone and has a dust receiver being attached to the incinerator having a suction port above the tabular ceramics filter; an incinerator with a ceramics filter, wherein an intake pipe bent under a combustion portion is connected to an ash receiving chamber in which an ashpan is accessibly set and an oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached to an upper portion of the oast, a first filter and a second filter which contain a storage box, are supported by a spring, has a vibrator attached thereto and accommodate therein a spherical ceramics filter being connected to the incinerator having a suction portion formed thereto above the tabular ceramics filter, an suction portion consisting of a cover and a cyclone which inserts an end of an air duct of a blower to a lower end of an exhaust duct attached to the cyclone and has a dust receiver being attached to the second filter; an incinerator with ceramics filter, wherein an intake pipe bent under a combustion portion is connected to an ash receiving chamber in which an ashpan is accessibly set and an oast is set in a combustion chamber, a tabular ceramics filter for removing harmful substances being attached above the oast, a first filter in which the tabular ceramics filter is vertically set in an installation container being connected to the incinerator having a suction port formed thereto above the tabular ceramics filter, a second filter which has a storage box, is supported by a spring, has a vibrator attached thereto and accommodates a spherical ceramics filter being connected to the first filter, a third filter which has a storage box, is supported by a spring, has a vibrator attached thereto and accommodates a spherical ceramics filter being connected to the second filter, a suction portion consisting of a cover and a cyclone which inserts an end of an air duct of a blower to a lower end of an exhaust tube attached to the cyclone and has a dust receiver being connected to the third filter; and a multistage incinerator with a ceramics filter, wherein a tabular ceramics filter is inclined and provided in a combustion chamber in multistage, a cabinet being provided to one end of the tabular ceramics filter inclined and provided in multistage, a burner being attached under the tabular ceramics filter.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1

is a perspective view showing a ceramics filter of an incinerator with a ceramics filter according to the present invention;

FIG. 2

is an enlarged plan view showing a point A of the ceramics filter of the incinerator with a ceramics filter according to the present invention;

FIG. 3

is a front view showing a spherical ceramics filter of the incinerator with a ceramics filter according to the present invention;

FIG. 4

is a cross-sectional view taken along the A—A line in

FIG. 1

, showing a spherical ceramics filter used in the incinerator with a ceramics filter according to the present invention;

FIG. 5

is a cross-sectional view showing another embodiment of the spherical ceramics filter used in the incinerator with a ceramics filter according to the present invention;

FIG. 6

is a typical drawing showing a flow of an air stream in case of a negative pressure suction method of the incinerator with a ceramics filter according to the present invention;

FIG. 7

is a cross-sectional view showing a flow of an air stream in cases where a ceramics filter is attached in a combustion furnace adopting the negative pressure suction method of the incinerator with a ceramics filter according to the present invention;

FIG. 8

is a longitudinal cross-sectional view showing the incinerator with a ceramics filter according to the present invention;

FIG. 9

is a transverse cross-sectional view showing the incinerator with a ceramics filter according to the present invention;

FIG. 10

is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 11

is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 12

is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 13

is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 14

is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 15

is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 16

is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 17

is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 18

is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 19

is a transverse cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention;

FIG. 20

is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is attached to the incinerator with a ceramics filter according to the present invention;

FIG. 21

is a longitudinal cross-sectional view showing the state where a pan-like ceramics filter is attached to the incinerator with a ceramics filter according to the present invention;

FIG. 22

is a longitudinal cross-sectional view showing a cap-like ceramics filter is attached to the incinerator with a ceramics filter according to the present invention;

FIG. 23

is a longitudinal cross-sectional view showing the state where a hollow spherical ceramics filter is attached to the incinerator with a ceramics filter according to the present invention;

FIG. 24

is a longitudinal cross-sectional view showing the state where a spherical ceramics filter is attached to the incinerator with a ceramics filter according to the present invention;

FIG. 25

is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is vertically attached to the incinerator with a ceramics filter according to the present invention;

FIG. 26

is a longitudinal cross-sectional view showing the state where a tabular ceramics filter having a heater embedded therein is attached to the incinerator with a ceramics filter according to the present invention;

FIG. 27

is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is attached to the incinerator with a ceramics filter and a stove is also provided;

FIG. 28

is a longitudinal view showing the state where a ceramics filter having a tall-hat-like cross section is attached to the incinerator with a ceramics filter according to the present invention;

FIG. 29

is a longitudinal cross-sectional view showing the state where a ceramics filter having an inverted-tall-hat-like cross section is attached to the incinerator with a ceramics filter;

FIG. 30

is a longitudinal cross-sectional view showing the state where a ceramics filter having a triangular cross section is attached to the incinerator with a ceramics filter according to the present invention and a burner is also disposed;

FIG. 31

is a longitudinal cross-sectional view showing the state where a ceramics filter having an inverted-triangular cross section is attached to the incinerator with a ceramics filter and a burner is also provided;

FIG. 32

is a longitudinal cross-sectional view showing the state where a continuous U-shaped ceramics filter is attached to the incinerator with a ceramics filter according to the present invention and a burner is also provided;

FIG. 33

is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is attached to the incinerator with a ceramics filter according to the present invention in the multistage manner;

FIG. 34

is a longitudinal cross-sectional view showing a cyclone with a burner attached to the incinerator with a ceramics filter according to the present invention to be used;

FIG. 35

is a longitudinal cross-sectional view of a cyclone with a burner attached to the incinerator with a ceramics filter according to the present invention to be used;

FIG. 36

is a front view of a vacuum pump attached to the incinerator with a ceramics filter according to the present invention for suction;

FIG. 37

is a plan view of a vacuum pump attached to the incinerator with a ceramics filter according to the present invention for suction;

FIG. 38

is a longitudinal cross-sectional view showing a cyclone attached to the incinerator with a ceramics filter according to the present invention to be used;

FIG. 39

is a view showing another embodiment of the cyclone attached to the incinerator with a ceramics filter according to the present invention to be used;

FIG. 40

is a longitudinal cross-sectional view showing the combustion state of an object to be incinerated when an air streams is forcibly sent in a conventional incinerator.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

An incinerator with a ceramics filter according to the invention of the present application will now be described in detail with reference to the accompanying drawings.

FIG. 1

is a perspective view of a tabular ceramics filter used being attached to an incinerator with a ceramics filter according to the present invention, and

FIG. 2

is an enlarged view of a point A in the tabular ceramics filter illustrated in FIG.

1

. As shown in

FIG. 1

, a plurality of very minute pores

2

are formed to the tabular ceramics filter

1

as shown in FIG.

2

. The minute pores

2

are smaller than molecules of dioxin as a harmful substance which is said to be generated when burning up an object to be incinerated.

The fine pores

2

are formed across the filter and the pore

2

is as small as a molecule. Molecules can be screened in a fixed range in accordance with a size of that pore. As a material of the ceramics filter, there are zeolite, silicalite activated carbon, porous glass and others, and zeolite is used as ceramics for the ceramics filter in the incinerator with a ceramics filter according to the present invention. Zeolite has uniform pores

2

whose size falls within a range of 0.3 to 1 nm. Since the size of a molecule of dioxin is approximately 1 nm, dioxin can be screened by zeolite. Only zeolite is taken as an example of a material of the ceramics filter used in the invention of the present application, ceramics of silicalite, activated carbon, porous glass and others may be used.

FIG. 3

is a front view of a ceramics filter which is used in the incinerator with a ceramics filter according to the invention of the present application and in which ceramics used for removing dioxin as a harmful substance is spherically formed (which will be referred to as a spherical ceramics filter hereinafter);

FIG. 4

is a longitudinal cross-sectional view taken along the A—A line in

FIG. 3

; and

FIG. 5

is a longitudinal cross-sectional view showing that powdered calcium hydroxide, powdered activated carbon, powdered calcium oxide and the like is filled in the pores

4

of the spherical ceramics filter illustrated in FIG.

4

.

As shown in

FIG. 4

, an infinite number of pores

4

are formed inside the spherical ceramics filter

3

depicted in FIG.

3

. As shown in

FIG. 5

, powdered calcium hydroxide, powdered activated carbon and powdered calcium oxide

4

a

are filled in the pores

4

formed beyond number. With the spherical ceramics filter

3

having such a structure, harmful substances such as dioxin can be efficiently removed when this filter is used in the incinerator.

FIG. 6

is a longitudinal cross-sectional view of an incinerator for burning and incinerating an object to be incinerated by a method for sucking air, and

FIG. 7

is a longitudinal cross-sectional view showing the state where the tabular ceramics filter is attached at a position close to a suction fun disposed in the vicinity of an outlet of the incinerator for burning and incinerating the object to be incinerated by the method for sucking air.

The incinerator

5

having the structure shown in

FIG. 6

is not an incinerator which forcibly sends air into the incinerator to burn and incinerate the object to be incinerated like an incinerator illustrated in

FIG. 40

but an incinerator having the structure such that a suction fan

5

b

for sucking smoke or combustion heat generated at the time of incinerating the object to be incinerated

5

g

in the incinerator

5

is attached to the outlet

5

a.

According to the method by which the object to be incinerated

5

g

is burned and incinerated in the incinerator

5

while sucking air by the suction fan

5

b

attached to the outlet

5

a

, fresh air is sucked from an air intake

5

h

into the incinerator

5

and air enters the pores

5

e

formed to the object to be incinerated

5

g

so that the inside of the object to be incinerated

5

g

can be completely burned up in the incinerator

5

such as shown in FIG.

6

.

When burning up the object to be incinerated

5

g

by such a suction method, air does not stagnate at a position

5

f

in the vicinity of the air intake

5

h

, and air flows toward the outlet

5

a

, thereby generating no disturbance of air at the rear portion

5

d

of the object to be incinerated

5

g

. Therefore, the object to be incinerated

5

g

can be completely burned up even to the inside thereof. As shown in

FIG. 7

, the tabular ceramics filter

1

is attached to the suction fan

6

b

disposed to the outlet

6

a

so as to be close to the object to be incinerated

5

g

in the incinerator

5

having the structure shown in FIG.

6

.

Attaching the tabular ceramics filter

1

to the outlet

6

a

can completely remove a harmful substance such as dioxin generated by incineration of the object to be incinerated

5

g

. Reference numeral

6

c

denotes a flow of air;

6

d

, a rear portion;

6

e

, a pore;

6

f

, a position in the vicinity of an air intake; and

5

h

, an air intake.

FIGS. 8

to

15

are views showing an incinerator having the structure in which the tabular ceramics filter is attached in the incinerator which is the incinerator with a ceramics filter according to the invention of the present application.

FIGS. 8 and 9

show the incinerator capable of dealing with macromolecule incineration which is suitable for burning up a high polymer object to be incinerated.

FIG. 8

is a longitudinal cross-sectional view and

FIG. 9

is a transverse cross-sectional view.

FIGS. 10 and 11

are views showing an incinerator for burning up general refuse which is suitable for incineration of general refuse.

FIG. 10

is a longitudinal cross-sectional view and

FIG. 11

is a transverse cross-sectional view.

FIGS. 12 and 13

are view showing a basic apparatus of an incinerator with a ceramics filter according to the present invention.

FIG. 12

is a longitudinal cross-sectional view and

FIG. 13

is a transverse cross-sectional view.

FIGS. 14 and 15

are views showing a basic incinerator having the structure such that air is sucked from the outside of the incinerator with a ceramics filter according to the invention of the present application.

FIG. 14

is a longitudinal cross-sectional view and

FIG. 15

is a transverse cross-sectional view.

FIGS. 16

to

19

show other embodiments of the incinerator with a ceramics filter according to the invention of the present application. That is, these are views showing the incinerators having the tabular ceramics filter and the spherical ceramics filter attached thereto.

FIGS. 20

to

32

are views showing ceramics filters having various shapes which are attached to the incinerator with a ceramics filter according to the present invention.

FIG. 33

is a view showing another embodiment of the incinerator with a ceramics filter according to the invention of the present application.

FIGS. 34 and 35

are views showing a cyclone used being attached to the incinerator with a ceramics filter according to the invention of the present application.

FIGS. 36 and 37

are views showing a vacuum pump for suction which is attached to the incinerator with a ceramics filter according to the invention of the present application to be used, and

FIG. 38

is a view showing a cyclone attached to the incinerator with a ceramics filter according to the present invention to be used.

FIG. 8

is a longitudinal cross-sectional view showing an incinerator corresponding macromolecule which is the incinerator with a ceramics filter according to the present invention, and

FIG. 9

is a transverse cross-sectional view of an incinerator corresponding macromolecule which is the incinerator with a ceramics filter according to the present invention.

As shown in

FIG. 8

, the incinerator with a ceramics filter

7

in this example has air intakes

7

a

provided to the right and left lower portions of the incinerator

7

. When smoke, combustion hot air and the like generated by combustion of the object to be incinerated

7

c

in the combustion chamber

7

f

is sucked from the suction port

7

e,

the check valves

7

b

on the both sides are opened and fresh air enters the combustion chamber

7

f

from the air intakes

7

a

. The air which has entered the combustion chamber

7

f

is absorbed into the suction port

7

e

while being mixed with molecules of the object to be incinerated

7

c

to perform combustion. The arrow in

FIG. 8

shows a flow of air

7

d.

When smoke, combustion hot air and the like having passed through fine pores

8

a

formed to the ceramics filter

8

is sucked in the suction port

7

e

by the blast fan or blower and the like, only the macro molecules contained in smoke, combustion hot air and the like can not pass through the ceramics filter

8

and adhere to the pores

8

a

of the ceramics filter

8

. Thus, the macro molecules can not be discharged into the air. As shown in

FIG. 9

, in the ceramics filter

8

, only the molecules of smoke, combustion hot air and the like having passed through the pores

8

a

of the filter is sucked in the suction port

7

e

to be discharged into the air. As shown in

FIG. 8

, an oast

7

g

is installed under the ceramics filter

8

in the combustion chamber

7

f

, and an object to be dried

7

h

containing a large amount of water is dried by hot air generated by combustion of the object to be incinerated

7

c.

FIG. 10

is a longitudinal cross-sectional view of an apparatus dealing with general refuse which is the incinerator with a ceramics filter according to the present invention, and

FIG. 11

is a transverse cross-sectional view of an apparatus dealing with general refuse which is the incinerator with a ceramics filter according to the present invention. An arrow indicates a flow of air

9

e

in a combustion chamber

9

g

in the incinerator with a ceramics filter

9

.

As shown in

FIG. 10

, in the incinerator with a ceramics filter

9

, an air intake

9

a

is provided to the lower portion of the incinerator

9

, a tabular ceramics filter

8

is provided to the upper portion of the combustion chamber

9

g

, and a suction port

9

f

through which smoke, combustion hot air and the like generated in the combustion chamber

9

g

are sucked or discharged is provided above the tabular ceramics filter

8

. When smoke, combustion hot air and the like generated in the combustion chamber

9

g

is sucked by a blast fan or blower directly set at the suction port

9

f

through the suction port

9

f

, a vacuum is formed in the combustion chamber

9

g

, and a check valve

9

b

provided to the air intake

9

a

is opened so that the outside air is taken from the air intake into the combustion chamber

9

g

. The outside air taken in the combustion chamber

9

g

by the air intake

9

a

performs combustion while being mixed with molecules of an object to be incinerated

7

c

, and smoke, combustion hot air and the like is sucked to the suction port

9

f.

When the object to be incinerated

9

d

is burned up, smoke, combustion hot air and the like pass through fine pores

8

a

formed to the ceramics filter

8

provided to the upper portion of the combustion chamber

9

g

, and the combustion hot air flows in a direction of the suction port

9

f

like the flow of air

9

e

indicated by an arrow. When the combustion hot air such as smoke and the like passes through the fine pores

8

a

formed to the ceramics filter

8

, only molecules whose size is smaller than the pore

8

a

formed to the ceramics filter

8

can pass through the pores

8

a

of the ceramics filter

8

. If the size of the molecule is larger, it can not pass through the pore

8

a

formed to the ceramics filter

8

. An ash receiving chamber having an ashpan

9

c

set therein is provided below the combustion chamber

9

g

of the incinerator

9

. This ashpan

9

c

can be accessible from the incinerator

9

. Further, an oast

9

h

is set in the combustion chamber

9

g

under the ceramics filter

8

and can dehydrate an object to be dried

9

i

containing a large amount of water.

As show in

FIG. 11

, the molecule having passed through the filter pore

8

a

formed to the ceramics filter

8

is absorbed into the suction port

9

f

. However, this molecule dioxin as a harmful substance has the size larger than the fine pore

8

a

formed to the ceramics filter

8

, dioxin adheres to the pore

8

a

of the ceramics filter

8

.

FIG. 12

is a longitudinal cross-sectional view of a basic simplified incinerator which is the incinerator with a ceramic filter according to the present invention, and

FIG. 13

is a transverse cross-sectional view of the basic simplified incinerator which is the incinerator with a ceramic filter according to the present invention. An arrow indicates a direction of an air flow

10

e

which is taken into the incinerator with a ceramics filter of this example to flow in a combustion chamber

10

k

and a cyclone chamber

10

g

of a cyclone

10

b.

As shown in

FIGS. 12 and 13

, the incinerator with a ceramics filter

10

of this example consists of the combustion chamber

10

a

and a cyclone

10

b.

An object to be incinerated

10

d

to be burned up in the incinerator

10

a

is consumed in the combustion chamber

10

k,

and smoke, hot air and the like generated from combustion in the combustion chamber

10

k

pass through fine pores

8

a

formed tot he ceramics filter

8

. The molecule of dioxin which is a harmful substance contained in smoke, combustion hot air and the like adheres to the pores

8

a

of the ceramics filter when trying to pass through the pores

8

a.

The molecules other than those of dioxin, which can pass through the pores

8

a

formed to the ceramics filter

8

, are separated and screened from those which can not pass through the same, and only the molecules having passed through the pores

8

a

of the ceramics filter

8

are sucked into the cyclone chamber

10

g

of the cyclone

10

b.

A cooling system for cooling down is attached at a connection portion

10

f,

and smoke, combustion hot air and the like generated in the combustion chamber

10

k

are cooled down at the connection portion

10

f

to be sucked into the cyclone chamber

10

g.

In this manner, smoke, combustion hot air and the like are separated from dioxin and others which are harmful substances contained in smoke, combustion air and the like. That is, only fine molecules whose size is smaller than that of the pore

8

a

formed to the ceramics filter

8

are caused to pass through the pore

8

a.

The screened smoke, combustion hot air and the like are sucked into the cyclone chamber

10

g

of the cyclone

10

b.

In the incinerator with a ceramics filter

10

of this example, an end of an air duct

10

m

of a blower

10

h

is inserted to the lower portion of an exhaust duct

10

i

set in the cyclone chamber

10

g

of the cyclone

10

b.

When the blower

10

h

is driven, and air is sent from the air duct

10

m

into the exhaust tube

10

i

of the cyclone chamber

10

g

as an air stream, and the sent air is forcibly discharged from the outlet

10

j

into the air, thereby forming a vacuum in the cyclone chamber

10

g.

Therefore, an air pressure in the cyclone chamber

10

g

becomes lower than that in the combustion chamber

10

k

, and there occurs a difference in pressure between the combustion chamber

10

k

and the cyclone chamber

10

g.

Thus, smoke, combustion hot air and the like in the cyclone chamber

10

g

pass through the connection portion

10

f

having the cooling system attached thereto to be sucked into the cyclone chamber

10

g

(this will be referred to as an ejector effect hereinafter). As shown in

FIG. 13

, smoke, combustion hot air and the like screened and sucked in the cyclone chamber

10

g

move down while rotating spirally in the cyclone chamber

10

g

of the cyclone

10

b

. They are then sucked from the lower end of the exhaust tube

10

i

and discharged from the outlet

10

j

of the exhaust tube

10

i

into the air. Reference numeral

101

denotes a dust receiver. An oast

10

n

is set under the ceramics filter

8

provided in the combustion chamber

10

k

in order to dehydrate an object to be dried

10

o

containing a large amount of water.

FIG. 14

is a longitudinal cross-sectional view of an apparatus such that a suction portion is added to the combustion portion having an intake pipe arranged in the incinerator with a ceramics filter according to the present invention, and

FIG. 15

is a transverse cross-sectional view showing a filter portion of the incinerator with a ceramics filter of this example.

As shown in

FIGS. 14 and 15

, the incinerator with a ceramics filter

11

of this example is constituted by a combustion portion

11

a

and a suction portion

11

b

. The combustion portion

11

a

consists of an intake pipe

11

d

having an air intake

11

c

for taking in air; a combustion chamber

11

m

; a pan

11

e

for receiving incinerated ash; and a ceramics filter

8

for screening combustion smoke in the molecule level.

The suction portion

11

b

is made up of: an intake pipe

11

d

having an air intake

11

c

for taking air to a pan

11

e

set to the lower portion of the combustion portion

11

a

; a cyclone

11

i

in which an exhaust duct

11

k

having an outlet

111

is provided; and a blower

11

j

for inserting the end of the air duct

11

n

to the lower end of the exhaust duct

11

k

. The intake pipe

11

d

is bent and one end of the intake pipe

11

d

is connected to the lower portion of the combustion portion

11

a.

In the combustion chamber

11

m

, an oast

11

o

for dehydrating an object to be dried

11

p

containing a large amount of water is so provided as to protrude to the combustion chamber

11

m

. The object to be dried

11

p

which contains a large amount of water and put on the oast

11

o

is dried by hot air generated by combustion of the object to be incinerated

11

f.

Explaining the air flow in the incinerator with a ceramics filter of this example, the air flow

11

g

moves as indicated by an arrow. That is, when the object to be incinerated

11

f

is inflamed and the blower

11

j

is driven, since the air stream sent from the blower

11

j

is forcibly moved from the end of the air duct

11

n

into the exhaust duct

11

k

, smoke, combustion hot air and the like in the cyclone

11

i

are sucked from the lower end of the exhaust duct

11

k

having the cover and discharged from the outlet

111

.

Then, they are forcibly discharged from the exhaust duct

11

k

into the air, and a vacuum is hence formed in the cyclone

11

i

. Therefore, as to smoke, combustion hot air and the like generated from the objected to be incinerated

11

f

and the object to be dried

11

p

in the combustion chamber

11

m

through the connection portion

11

h

having a cooling chamber provided thereto, only the molecules having passed through the pores

8

a

of the ceramics filter

8

are discharged from the exhaust duct

11

k

, and dioxin as a harmful substance which can not pass through the pores

8

a

formed to the ceramics filter

8

is removed and sucked in the cyclone

11

i

. As a result, a vacuum is also formed in a chamber in which the pan

11

e

is set, and the outside air from the air intake

11

c

passes through the intake pipe

11

d

to flow into the chamber with the pan

11

e

in which a vacuum is formed. Reference numeral

11

q

denotes a cover for preventing rain water from entering the intake pipe

11

d

and exhaust duct

11

k.

FIG. 16

is a longitudinal cross-sectional view showing the state in which the tabular ceramics filter and the spherical ceramics filter are attached to the incinerator with a ceramics filter according to the present invention, and

FIG. 17

is a transverse cross-sectional view showing the state in which the tabular ceramics filter and the spherical ceramics filter are attached to the incinerator with a ceramics filter according to the present invention.

As shown in

FIGS. 16 and 17

, this example is made up of: a combustion portion

13

having the ceramics filter

8

provided thereto; a first filter

14

accommodating therein a plurality of spherical ceramics filter

14

c

formed into a granulated form; a second filter

15

similarly accommodating therein a plurality of spherical ceramics filters

15

c

; and a suction portion

16

having a cyclone

16

a.

The incinerator with a ceramics filter

12

of this example has the structure for filtering smoke, combustion hot air and the like generated in the combustion portion

13

by three stages, i.e., the tabular ceramics filter

8

, the first filter

14

accommodating therein the spherical ceramics filters

14

c

and the second filter

15

accommodating therein the spherical ceramics filters

15

c

which are the filter for removing harmful substances such as dioxin. This structure can completely remove dioxin and the like which is a harmful substance contained in smoke, combustion hot air and the like.

The combustion portion

13

is constituted by a bent intake pipe

12

b

having an air intake

12

a

for taking in air; a combustion chamber

13

f

to which an oast

13

g

for dehydrating an object to be dried

13

h

containing a large amount of water is attached; an ashpan

13

b

for receiving incinerated ash; and a tabular ceramics filter

8

for screening combustion smoke in the molecule level. The intake pipe

11

d

having the air intake

12

a

for taking in outside air is connected to an ash receiving chamber in which the ashpan

13

b

is set through the side portion of the cyclone

16

a

and the lower portions of the first filter

14

and the second filter

15

so that fresh air enters the ash receiving chamber from the inlet

13

a.

As shown in

FIGS. 16 and 17

, both the first filter

14

and the second filter

15

are hollow cylinders, and the lower portion of each filter has a cone-like shape. There are partitions

14

i

and

15

i

in the first filter

14

and the second filter

15

in order to divide into right filter chambers

14

a

and

15

a

and left filter chambers

14

b

and

15

b

. A plurality of spherical ceramics filters

14

c

and

15

c

which are filters formed into a ball-like shape are accommodated in the right filter chambers

14

a

and

15

a

and the left filter chambers

14

b

and

15

b.

The first filter

14

and the second filter

15

are supported by springs

14

e

and

15

e

, and to the lower portions of the first filter

14

and the second filter

15

are set storage boxes

14

f

and

15

f

for accommodating therein filtered materials which are harmful substances (dioxin) filtered by the first filter

14

and the second filter

15

.

The suction portion

16

is constituted by: a cyclone

16

a

; a blower

16

b

having an air duct

16

f

; an exhaust duct

16

c

which is inserted into and attached to the cyclone

16

a

; and an outlet

16

d

. Smoke, combustion hot air and the like generated in the combustion portion

13

pass through the tabular ceramics filter

8

, the connection portion

13

e

having a cooling chamber for cooling down, and the connection portion

14

g

from the inside of the first filter

14

. They then enter the second filter

15

accommodating therein a plurality of spherical ceramics filters

15

c.

Thereafter, they flow into the cyclone

16

a

through the connection portion

15

g

to be discharged from the exhaust duct

16

c.

Then, smoke, combustion hot air and the like filtered to contain no harmful substances are emitted from the outlet

16

d

. In this manner, smoke, combustion hot air and the like generated in the combustion chamber

13

f

circulate through the tabular ceramics filter

8

in the combustion portion

13

, the first filter

14

, the second filter

15

, the cyclone

16

a

and the exhaust duct

16

c

in the mentioned order to be discharged.

The reason of such circulation is as follows. Since the air stream is sent from the end of the air duct

16

f

into the exhaust duct

16

c

through the lower end of the exhaust duct

16

c

by drive of the blower

16

b

, a vacuum is entirely formed in the cyclone

16

a

. Then, smoke, combustion hot air and the like cooled down in the connection portion

15

g

having the cooling chamber for cooling down flow from the second filter

15

into the cyclone

16

a

in such a manner that smoke, combustion hot air and the like in the combustion portion

13

, the first filter

14

and the second filter

15

are sucked.

Harmful substances such as dioxin contained in smoke, combustion hot air and the like generated in the combustion chamber

13

f

can not pass through the pores

8

a

formed to the tabular ceramics filter

8

when trying to pass through the tabular ceramics filter

8

. Only the smoke, combustion hot air and the like having passed through the filter

8

flow into the first filter

14

to be filtered by the second filter

15

. Consequently, only the smoke, combustion hot air and the like from which harmful substances such as dioxin contained in the smoke, combustion hot air and the like are removed are discharged into the air.

FIG. 18

is a longitudinal cross-sectional view showing another embodiment of the incinerator with a ceramics filter according to the present invention, and

FIG. 19

is a transverse cross-sectional view of the incinerator with a ceramics filter according to the present invention.

As shown in

FIGS. 18 and 19

, the incinerator with a ceramics filter

17

of this example is constituted by: a combustion portion

18

which accessibly provides an ashpan

18

b

in an ash receiving chamber, sets an oast

18

f

for dehydrating an object to be dried

18

g

and provides a tabular ceramics filter

8

having pores

8

a

formed thereto horizontally set above the oast

18

f

; a filter portion consisting of a first filter

19

which is a tabular ceramics filter

23

vertically accommodated and set in a installation container

19

a

, a second filter

20

accommodating therein a plurality of spherical ceramics filter

20

c

and a third filter

21

accommodating therein a plurality of spherical ceramics filter

21

c

; and a suction portion

22

.

The incinerator with a ceramics filter

17

of this example has a structure such that smoke, combustion hot air and the like are filtered in four stages, i.e., the tabular ceramics filter

8

whose filter is horizontally set in the combustion portion

18

, the vertical set first ceramics filter

19

which is the tabular ceramics filter

23

, the second filter

20

accommodating therein the spherical ceramics filters

20

c

and the third filter

21

accommodating therein the spherical ceramics filters

21

c

. This structure can completely remove dioxin which is a harmful substance contained in smoke, combustion hot air and the like.

The combustion portion

18

consists of: a bent intake pipe

17

b

having an air intake

17

a

for taking in air; a combustion chamber

18

e

to which an oast

18

f

for dehydrating an object to be dried

18

g

containing a large amount of water is attached; a pan

18

b

for receiving incinerated ash; and a tabular ceramics filter

8

for screening combustion smoke in the molecule level. The intake pipe

17

b

having the air intake

17

a

for taking in outside air is connected to the ash receiving chamber in which an ashpan

13

b

is set through the side portion of a cyclone

22

a

of a suction portion

22

and the lower portions of the first filter

19

, the second filter

20

and the third filter

21

.

As shown in

FIGS. 18 and 19

, the tabular ceramics filter

23

is vertically set in the installation container

19

a

in the first filter

19

. There are a right chamber

19

c

and a left chamber

19

d

on the right and left sides of the tabular ceramics filter

23

, respectively.

Reference numeral

19

b

denotes a right connection tube, and

19

e

, a left connection tube. Both the second filter

20

and the third filter

21

are hollow cylinders, and the lower portion of each filter has a cone-like shape.

There are partitions

20

i

and

21

i

in the second filter

20

and the third filter

21

in order to divide into right filter chambers

20

a

and

21

a

and left filter chambers

20

b

and

21

b

. A plurality of ball-like spherical ceramics filters

20

c

and

21

b

are accommodated in the right filter chambers

20

a

and

21

a

and the left filter chambers

20

b

and

21

b.

The right connection tube

19

b

and the left connection tube

19

e

are connected to the installation container

19

a

of the first filter

19

in which the tabular ceramics filter

23

is housed, and the right connection tube

19

b

is connected to the combustion portion

8

while the left connection tube

19

e

is connected to the second filter

20

. Springs

20

e

and

21

e

are provided under the second filter

20

and the third filter

21

so as to support these filters, and storage boxes

20

f

and

21

f

for accommodating therein filtered materials

20

g

and

21

g

which are harmful substances (dioxin) filtered by the second filter

20

and the third filter

21

are provided under the second filter

20

and the third filter

21

.

The suction portion

22

consists of a cyclone

22

a

; a blower

22

b

having an air duct

22

e

; an air duct

22

e

inserted and attached in the cyclone

22

a

; and an outlet

22

d.

Smoke, combustion hot air and the like generated in the combustion portion

18

pass through the tabular ceramics filter

8

horizontally set in the combustion chamber

18

e

. They further pass through the right connection tube

19

b

, the first filter

19

to which the tabular ceramics filter

23

is attached; the left connection tube

19

e

, the inside of the connection portion.

19

f

having a cooling chamber for cooling down, the second filter

20

, the connection portion

20

h

, the third filter

21

, and the inside of the connection portion

21

h

having a cooling chamber for cooling down and then enter the cyclone

22

a.

Thereafter, as to smoke, combustion hot air and the like which have entered the cyclone

22

a

through the connection portion

21

h

, the smoke, combustion hot air and the like discharged from the air duct

22

e

and filtered to contain no harmful substance such as dioxin are emitted from the outlet

22

d.

In this manner, the smoke, combustion hot air and the like are discharged through the combustion portion

18

, the first filter

19

, the second filter

20

, the third filter

21

, the cyclone

22

a

and the exhaust duct

22

c

in the mentioned order because the air duct

22

e

attached to the blower

22

b

is inserted to the lower end of the exhaust duct

22

c

set in the cyclone

22

a.

Since the air stream is sent from the end of the air duct

22

e

into the exhaust duct

22

c

through the lower end of the exhaust duct

22

c

by drive of the blower

22

b

, a vacuum is entirely formed in the cyclone

22

a.

Thus, the smoke, combustion hot air and the like in the combustion chamber

18

, the first filter

19

, the second filter

20

and the third filter

21

flow into the cyclone

16

a

so as to be sucked.

FIGS. 20

to

24

and

FIG. 27

are longitudinal cross-sectional view showing different shapes of the ceramics filter set in the combustion portion of the incinerator with a ceramics filter according to the present invention. Further,

FIGS. 25 and 26

are longitudinal cross-sectional views showing the structure of a ceramics filter in cases where the tabular ceramics filter is vertically set. Furthermore,

FIGS. 28

to

32

are longitudinal cross-sectional views showing the structure where any other ceramics filter is attached in the combustion portion.

FIG. 20

is a longitudinal cross-sectional view showing the state where the tabular ceramics filter is attached in the combustion portion of the incinerator with a ceramics filter according to the present invention. Burners

24

c

and

24

d

are set at two positions in an upper portion

26

b

of a tabular ceramics filter

25

disposed between a right furnace wall

25

a

and a left furnace wall

25

b

in a furnace, and burners

24

a

and

24

b

are also provided at two positions in a lower portion

26

a

of the tabular ceramics filter

25

.

The respective burners

24

a

,

24

b

,

24

c

and

24

d

are attached on the right furnace wall

25

a

and the left furnace wall

25

b

. Although the burners are set at four positions in the lower portion

26

a

and the upper portion

26

b

of the tabular ceramics filter

25

disposed to the incinerator with a ceramics filter

24

in this example, it is possible to adopt a structure such that a burner is provided at any one position.

In addition, burners may be provided at any two position. Reference numeral

26

denotes a flow of air. Moreover, burners may be provided at any three positions. By adopting the structure where the burners are provided in this manner, when an unburned material is clogged in the fine pores formed to the tabular ceramics filter

25

, that unburned material can be removed.

FIG. 21

is a view showing the state where a pan-like ceramics filter having a pan-like cross section is attached in the combustion portion of the incinerator with a ceramics filter according to the present invention. As shown in

FIG. 21

, in an incinerator with a ceramics filter according to the present invention, a pan-like ceramics filter

28

is employed as a ceramics filter provided in the combustion portion. The pan-like ceramics filter

28

is provided between a right furnace wall

28

a

and a left furnace wall

28

b

in the furnace. In this example, burners

27

a

and

27

b

are set at two positions in a lower portion

29

a

of the pan-like ceramics filter. The burners

24

c

and

24

d

are attached to the right furnace wall

28

a

and the left furnace wall

28

b

. It is needless to say that the burners

24

c

and

24

d

do not have to be set at two position and a burner may be provided at one position.

FIG. 22

is a vertical cross-sectional view showing a part where a cap-like ceramics filter having a cap-like cross section is provided in the combustion portion of the incinerator with a ceramics filter according to the present invention. In this example, a ceramics filter

30

corresponds to a cap-like ceramics filter

31

having a cap-like cross section. Burners

30

a

and

30

b

are set in an upper portion

32

b

of the cap-like ceramics filter

31

, and the burners

30

a

and

30

b

are provided at two position with their ends facing downwards. In this example, no burner is provided to the lower portion

32

a

of the cap-like ceramics filter

31

. The cap-like ceramics filter

31

is set between the right furnace wall

31

a

and the left furnace wall

31

b

in the furnace.

The burners

30

a

and

30

b

are provided on the right furnace wall

31

a

and the left furnace wall

31

b

. Of course, the burner may be provided only at one position. Reference numeral

32

indicates a flow of air, and air passes through the cap-like ceramics filter

31

from the lower portion

32

a

of the cap-like ceramics filter

31

and flows to the upper portion

32

b

of the cap-like ceramics filter

31

.

FIG. 23

is a longitudinal cross-sectional view showing the structure such that spherical hollow ceramics filter is provided in the combustion portion of the incinerator with a ceramics filter. As shown in

FIG. 23

, as to the ceramics filter

33

of this example, the ceramics filter

33

set in the combustion chamber corresponds to a spherical ceramics filter

34

having a hollow portion

35

b

. The spherical hollow ceramics filter

33

is provided between the right furnace wall

34

a

and the left furnace wall

34

b

in the furnace.

Burners

33

a

and

33

b

are provided to a lower portion

35

a

of the spherical ceramics filter

34

having the hollow portion

35

b

in the right-and-left direction, and burners

33

c

and

33

d

are also provided to an upper portion

35

c

of the spherical hollow ceramics filter

34

in the right-and-left direction. The burners

33

a

,

33

b

,

33

c

and

33

d

are disposed on the right furnace wall

34

a

and the left furnace wall

34

b

. Although the burners

33

a

,

33

b

,

33

c

and

33

d

are provided at four positions, the burner may be provided at only one position. Further, the burners may be provided at only two positions or three positions. Reference numeral

35

denotes a flow of air.

FIG. 24

is a longitudinal cross-sectional view showing the structure where the ceramics filter attached to the incinerator with a ceramics filter according to the present invention has a spherical ceramics filter having no hollow portion provided in the combustion portion. As shown in

FIG. 24

, as to the ceramics filter

36

of this example, the ceramics filter

36

set in the combustion portion corresponds to the spherical ceramics filter

37

having no hollow portion therein. The spherical ceramics filter

37

having no hollow portion is set between a right furnace wall

37

a

and a left furnace wall

37

b

in the furnace.

Burners

36

a

and

36

b

are provided to a lower portion

38

a

of the spherical no hollow spherical ceramics filter

37

in the right-and-left direction, and burners

36

c

and

36

d

are also provided to an upper portion

38

b

of the spherical ceramics filter

37

in the right-and-left direction. The respective burners

36

a

,

36

b

,

36

c

and

36

d

are disposed to the right furnace wall

37

a

and the left furnace wall

37

b

. Although the burners

36

a

,

36

b

,

36

c

and

36

d

are provided at four position, the burner may be provided at only one position. Further, the burners may be provided only at two positions or three position. Reference numeral

38

denotes a direction of an air flow.

FIG. 25

is a longitudinal cross-sectional view showing the state where a tabular ceramics filter as a ceramics filter disposed to the incinerator with a ceramics filter is vertical set. In the ceramics filter

39

according to the present invention, a tabular ceramics filter

40

is vertically set in an installation container

40

a

, and four burners

39

a

,

39

b

,

39

c

and

39

d

are set at symmetrical positions with the tabular ceramics filter

40

in the center. The ceramics filter

39

of this example is set as shown in the longitudinal cross-sectional view of FIG.

18

.

Reference numeral

41

designates a flow of air. The air flows from a right chamber

41

a

and a left chamber

41

b

formed on the right and left sides of the vertically set tabular ceramics filter

40

toward the left and right surfaces of the tabular ceramics filter

40

. In this manner, clogging can be prevented by heating the tabular ceramics filter

40

from the both right and left surfaces by the burners

39

a

,

39

b

,

39

c

and

39

d.

FIG. 26

is a longitudinal cross-sectional view showing the state where a tabular ceramics filter having a heater embedded therein is vertically set in the incinerator with a ceramics filter according to the present invention. In the incinerator with a ceramics filter such that the tabular ceramics filter

42

having a heater

42

a

embedded therein is provided, the tabular ceramics filter

42

having a heater

42

a

embedded therein is vertically set in an installation container

43

. The tabular ceramics filter

42

of this example is provided as shown in the longitudinal cross-sectional view of FIG.

18

.

Reference Numeral

44

denotes a flow of air. The air flows from a right chamber

44

a

and a left chamber

44

b

formed on the right and left sides of the vertically set tabular ceramics filter toward the right and left surfaces of the tabular ceramics filter

42

having the heater

42

a

embedded therein. In this manner, the tabular ceramics filter

42

itself can be prevented from being clogged by providing the heater

42

a

inside the tabular ceramics filter

42

.

FIG. 27

is a longitudinal cross-sectional view showing the state where a tabular ceramics filter is provided to the incinerator with a ceramics filter according to the present invention and heated by a stove. As shown in

FIG. 27

, according to the tabular ceramic filter

46

of the ceramics filter

45

in this example, a plurality of stoves

46

a

are provided to a lower portion

48

a

of the tabular ceramics filter

46

disposed to a right furnace wall

47

and a left furnace wall

47

a

so that the tabular ceramics filter

46

is heated by a plurality of the stoves

46

a

. In this manner, the tabular ceramic filter

46

can be prevented from being clogged by heating the tabular ceramics filter

46

from the lower portion

48

a

. Reference numeral

48

denotes a flow of air, and air flows from the lower portion

48

a

upwards.

FIG. 28

is a longitudinal cross-sectional view showing the state where a ceramics filter having a tall-hat-like cross section is provided in the combustion portion of the incinerator with a ceramics filter and heated by disposed burners. In the ceramic filter

49

of this example, burners

49

a

and

49

b

are provided at two positions on the external side of the cylindrical portion of the tall-hat-like ceramics filter

50

disposed to a right furnace wall

50

a

and a left furnace wall

50

b

with ends of the burners

49

a

and

49

b

facing downwards. Further, an air flow

51

a

like a whirlpool is formed on the external side of the tall-hat-like ceramics filter

50

by power of flames from the burners

49

a

and

49

b

. The air flow

51

passes through the tall-hat-like ceramics filter

50

from the lower portion

52

to flow into the upper portion

52

b.

Forming such an air flow

51

can remove dioxin which is a harmful substance by using the tall-hat-like ceramics filter

50

. The air flow

51

passes through an inner portion

52

a

from the lower portion

52

of the tall-hat-like ceramics filter

50

to enter the upper portion

52

b.

FIG. 29

is a longitudinal cross-sectional view showing the state where a ceramics filter having an inverted-tall-hat-like cross section is provided in the combustion portion of the incinerator with a ceramics filter according to the present invention.

As shown in

FIG. 29

, in the ceramics filter

53

of this example, burners

53

a

and

53

b

are provided on the external side of a cylindrical portion of the inverted-tall-hat-like ceramics filter

54

with ends of the burners

53

a

and

53

b

facing downwards. Further the inverted-tall-hat-like ceramics filter

54

is heated by the burners

53

a

and

53

b.

The inverted-tall-hat-like ceramics filter

54

is fixed to a right furnace wall

54

a

and a left furnace wall

54

b

. An air flow

55

a

like a whirlpool is formed on the external side of the inverted-tall-hat-like ceramics filter

54

by power of flames from the burners

53

a

and

53

b.

Forming the air flow

55

a

in this manner can remove dioxin which is a harmful substance by using the inverted-tall-hat-like ceramics filter

54

. Reference numeral

55

denotes an air flow, and the air passes through an inner portion

56

a

from a lower portion

56

of the inverted-tall-hat-like ceramics filter

54

to flow to an upper portion

56

b

. In this way, the ceramics filter

54

can be prevented from being clogged by heating the inverted ceramics filter

54

.

FIG. 30

is a longitudinal cross-sectional view showing the state where a ceramics filter having a triangular cross section is attached to a combustion portion of the incinerator with a ceramics filter according to the present invention. In the triangular ceramics filter

58

of this example, burners

57

a

and

57

b

are attached at two position of an upper portion

60

a

of the triangular ceramics filter

58

with ends of the burners

57

a

and

57

b

being directed downwards. In case of the ceramics filter of this example, no burner is attached to a lower portion

60

of the triangular ceramics filter

58

.

The burners

57

a

and

57

b

are attached to right and left furnace walls

58

a

and

58

b

. Of course, a burner may be provided at only one position. An arrow denoted by reference numeral

59

indicates a flow of air, and the air passes through the triangular ceramics filter

58

from a lower portion

60

a

of the triangular ceramics filter

58

to flow to the upper portion

60

a

of the triangular ceramics filter

58

.

FIG. 31

is a longitudinal cross-sectional view showing the state where an inverted triangular ceramics filter is attached to the combustion portion of the incinerator with a ceramics fitter according to the present invention. In the inverted triangular ceramics filter

62

of this example, burners

61

a

and

61

b

are attached at two position of a lower portion

64

of the inverted triangular ceramics filter

62

with ends of the burners

61

a

and

61

b

being directed upwards. In case of the ceramics filter of this example, no burner is attached to an upper portion

60

a

of the inverted triangular ceramics filter

62

.

The burners

61

a

and

61

b

are provided between a right furnace wall and a left furnace wall

62

b

. Of course, a burner may be provided at only one position. An arrow denoted by reference numeral

63

indicates a flow of air, and the air passes through the inverted triangular ceramics filter

62

from a lower portion

64

of the inverted triangular ceramics filter

62

to flow to an upper portion

64

a

of the inverted triangular ceramics filter

62

.

FIG. 32

is a longitudinal cross-sectional view showing the state where a continuous U-shaped ceramics filter is attached, the ceramics filter having a U-shaped cross section being connected to the combustion portion of the incinerator with a ceramics filter. In the continuous U-shaped ceramics filter

66

of the ceramics filter

65

in this example, burners

65

a

and

65

b

are provided at two position of a lower portion

68

of the continuous U-shaped ceramics filter with the ends of the burners

65

a

and

65

b

being directed upwards. In case of the ceramics filter of this example, no burner is attached to an upper portion

68

a

of the continuous U-shaped ceramics filter

66

.

The burners

65

a

and

65

b

are provided between a right furnace wall

66

a

and a left furnace wall

66

b

. Of course, the burner may be provided at only one position. An arrow denoted by reference numeral

67

indicates a flow of air, and the air passes through the continuous U-shaped ceramics filter

66

from the lower portion

68

of the continuous U-shaped ceramics filter

66

to flow to the upper portion

68

a

of the continuous U-shaped ceramics filter

66

.

FIG. 33

shows an other embodiment of the incinerator with a ceramics filter according to the present invention, which is an incinerator in which ceramics filters are set in multiple stages in the combustion portion. As shown in

FIG. 33

, the incinerator

69

with a ceramics filter of this example is an incinerator

69

having a structure such that respective tabular ceramics filters

71

,

71

a

and

71

b

are provided on a slat at three stages, i.e., an upper portion, a center and a lower portion in a combustion portion

69

f.

Cabinets

69

d

for accommodating therein a filtered substance

69

e

removed from smoke, combustion hot air and the like by the tabular ceramics filters

71

,

71

a

and

71

b

are provided in the combustion portion

69

f

. Further, burners

70

,

70

a

and

70

b

are attached to the combustion portion

69

f

. The respective burners

70

,

70

a

and

70

b

are upwardly provided below the tabular ceramics filters

71

,

71

a

and

71

b

set in the combustion portion

69

f

so as to face the lower surfaces of the tabular ceramics filters

71

,

71

a

and

71

b.

A fire grate

69

c

is having a vibrator

69

g

is provided to a lower portion of a combustion portion

69

f

. The vibrator

69

g

vibrates the fire grate

69

c

in such a manner that incinerated ash

69

i

remaining after burning of an object to be incinerated

69

h

does not

11

e

on the fire grate

69

c,

and the incinerated ash

69

i

on the fire grate

69

c

is caused to fall on an ashpan

69

b.

The ashpan

69

b

can be removed from or inserted into an ash receiving chamber where the ashpan is set.

Smoke, combustion hot air and the like pass through the tabular ceramics filters

71

,

71

a

,

71

b

and

71

c

provided on a slat at three stages and discharged so as to be sucked from an emission port

72

a

. In this manner, when the tabular ceramics filters are respectively provided at three stages to the upper portion, an amount of dioxin discharged into the air can be greatly reduced.

FIG. 34

is a longitudinal cross-sectional view showing a cyclone with a burner attached to the combustion portion of the incinerator with a ceramics filter according to the present invention.

FIG. 35

is a transverse cross-sectional view showing the cyclone with a burner attached to the combustion portion of the incinerator with a ceramics filter according to the present invention.

As shown in

FIGS. 14 and 15

, the incinerator with a ceramics filter according to the present invention has a structure such that an object to be incinerated is burned up and incinerated in a combustion portion and the ceramics filter is used to remove dioxin which is a harmful substance contained in smoke, combustion hot air and the like by filtration of the ceramics filter.

However, as shown in

FIGS. 34 and 35

, a minute amount of dioxin, an unburned material and the like may be produced even if smoke, combustion hot air and the like generated by combustion of an object to be incinerated in the combustion portion passes through the ceramics filter. Since the ceramics filter is provided, when a harmful substance, an unburned material and the like is again burned by attaching the cyclone with a burner

73

to the combustion portion, the harmful substance such as dioxin is prevented from being discharged in the air.

An object to be incinerated is burned in a combustion chamber of the combustion portion to generate a harmful substance such as dioxin, an unburned material and the like. They pass through the ceramics filter provided in the combustion portion. Then, smoke, combustion hot air and the like from which almost all the harmful substance such as dioxin, the unburned material and the like are removed passes through a connection duct

73

a

and are sucked in and flows into the cyclone with a burner

73

like an air flow

74

.

Even if the smoke, combustion hot air and the like flowing into the cyclone with a burner

73

passes through the ceramics filter provided in the combustion portion to remove a harmful substance therefrom, they may contain a given harmful substance or unburned material and the like which flows into the cyclone with a burner

73

without being completely removed by the ceramics filter.

As shown in

FIG. 35

, the smoke, the combustion hot air and the like sucked into the cyclone with a burner rotate above a cyclone chamber

73

c

of the cyclone with a burner

73

by flames of a burner

73

e

whilst a harmful substance, an unburned material and the like contained the smoke, the combustion hot air and the like in the cyclone chamber

73

c

are again burned.

The harmful substance, the unburned material and the like which have remained

73

g

from combustion fall into cabinets

73

f

attached at a center of the cyclone chamber

73

c

to be accommodated therein. The smoke, the combustion hot air and the like from which the harmful substance, the unburned material and the like contained therein have been removed are sucked into an air duct

73

d

to be discharged into the air. In addition, the harmful substance, the unburned material and the like which do not fall into the cabinets

73

f

further falls into a dust receiver

73

h.

As shown in

FIG. 34

, a blower

73

b

is provided to the lower portion of the cyclone with a burner

73

, and an air duct

73

i

attached to the blower

73

b

pierces the dust receiver

73

h

, the end of the air duct

73

i

being inserted into the lower end of the air duct

73

d.

Since the clean smoke, combustion hot air and the like whose unburned material or harmful substance

2

has been accommodated in and fallen into the cabinet

73

f

and the dust receiver

73

h

are forcibly sent from the end of the air duct

73

i

, the smoke, combustion hot air and the like from which the unburned material, the harmful substance and the like have been completely removed enter the air duct

73

d

with an air stream forcibly sent from the lower end of the air duct

73

d

and are discharged from the upper portion of the air duct

73

d

in the air.

In this manner, the smoke, combustion hot air and the like are forcibly sent from the air duct

73

i

to be emitted from the air duct

73

d

, and a vacuum is hence formed in the cyclone chamber

73

c

. As described above, since a vacuum is formed in the cyclone chamber

73

c

, the smoke, the combustion hot air and the like in the combustion portion pass through the connection duct

73

a

from the combustion portion and flow in the cyclone chamber

73

c

so as to be sucked therein.

FIG. 36

is a front view of a vacuum pump which is attached to the incinerator with a ceramics filter according to the present invention and used for suction, and

FIG. 37

is a plane view of a vacuum pump which is attached to the incinerator with a ceramics filter according to the present invention to be used.

For example, in the incinerator with a ceramics filter

7

shown in

FIG. 8

, by taking in fresh air by suction into the combustion chamber from an air intake

7

a

which is formed to the combustion portion by directly being attached to the upper portion of the combustion portion, an object to be incinerated can be completely burned up.

In the incinerator with a ceramics filter

9

shown in

FIG. 10

, fresh air can be sucked from an ash receiving chamber which is attached to a suction portion

9

f

of the combustion portion and has an ashpan

9

c

set therein so that an object to be incinerated

9

d

can be completely incinerated.

In the incinerator with a ceramics filter having a suction portion, a cyclone and the like as shown in

FIGS. 12

,

14

,

16

and

18

, a vacuum pump

75

is attached to the suction portion or the cyclone to forcibly suck smoke, combustion hot air and the like in the combustion portion, and fresh air can be hence taken into the combustion portion from the lower portion of the combustion portion.

As shown in

FIGS. 36 and 37

, in the vacuum pump

75

, a moving vane is constituted by a pump main body

75

a

, an opening/closing portion

75

b

, a suction port

75

c

and an outlet

75

d

. In the vacuum pump

75

, a rotating fan is rotated by drive of a motor.

FIG. 38

is a longitudinal cross-sectional view of a cyclone attached to a ceramics filter according to the present invention. This is a longitudinal cross-sectional view showing the cyclone

76

adopting the ejector suction system. As shown in

FIG. 38

, the cyclone

76

such as shown in

FIG. 38

can be attached to the incinerator with a ceramics filter. The cyclone

76

has a structure such that an exhaust tube

76

d

is attached to a cyclone chamber

76

a

so as to protrude therefrom and a air duct

76

g

of a blower

76

c

is provided at the lower end of the exhaust tube, and the air burned by the combustion chamber is sucked into the cyclone chamber

76

a

from a suction port

76

b

of the cyclone

76

. Reference numeral

76

h

denotes a dust receiver for receiving an unburned material which falls in the cyclone chamber

76

a.

At this time, when the blower

76

c

is driven, since an air stream is forcibly sent from the end of the air duct

76

g

into the exhaust tube

76

d

, the air in the cyclone chamber

76

a

is forcibly sucked into the exhaust tube

76

d

. Therefore, the air pressure in the cyclone chamber

76

a

is reduced. In this manner, the air in the cyclone chamber

76

a

is sucked into the exhaust tube

76

d

(the ejector effect), and the smoke, the combustion hot air and the like generated in the combustion chamber and sucked from the suction port

76

b

pass through the exhaust tube

76

d

to be emitted into the air. The flow of air

76

e

is sucked from the suction port

76

b

to become a billowing air flow

76

f

around the exhaust tube

76

d

. Thereafter, this air flow moves down to be sent from the air duct

76

g

from the lower end of the exhaust tube

76

d

and passes through the exhaust tube

76

d

to be discharged into the air together with an air stream.

FIG. 39

is a view showing another embodiment of the cyclone attached to the incinerator with a ceramics filter according to the present invention. In a cyclone

77

of this example, a blower

77

c

having an air duct

77

g

is provided to the upper portion of a cyclone chamber

77

a

, and the end of an air duct

77

g

of the blower

77

c

is inserted into an exhaust tube

77

d

. Any other structure is the same as that of the cyclone shown in FIG.

38

.

A catalytic filter utilizing a catalyst capable of removing a harmful substance such as dioxin may be provided instead of the ceramics filter attached to the incinerator with a ceramics filter according to the present invention. Specifically, the catalytic filter may substitute for the tabular ceramics filter

8

shown in

FIG. 8

, the tabular ceramics filter

8

shown in

FIG. 10

, the tabular ceramics filter

8

depicted in

FIG. 12

, the tabular ceramics filter

8

illustrated in

FIG. 14

, the tabular ceramics filter

8

shown in

FIG. 16

, the tabular ceramics filter

8

and the vertically set tabular ceramics filter

23

illustrated in FIG.

18

.

Here, as the catalyst used for the catalytic filter, there are a precious metal catalyst and an oxidation catalyst. As a catalytic component, it is known that the precious metal catalyst has the highest activity and is a most likely candidate for a catalyst which clarifies the exhaust gas in the incinerator. The precious metal catalyst is a catalyst obtained by titanium oxide is caused to adhere honeycomb-shaped or fibrous ceramic and platinum and the like is studded. It is reported that, among many precious metal catalysts, “the Pt/Ti102 catalyst” demonstrates the degradation effect of not less than 99 percent in the dioxin degradation test under the condition of SV=not more than 3000 h

−1

and 250 to 300° C.

As to the oxidation catalyst used as a catalyst, the oxidation catalyst is obtained by dispersing as fine particles a catalyst component of approximately 100 A on the surface of a ceramic component having a high superficial area over 100 m

2

/g which is called a wash coat. It is applied on a structure called the honeycomb or foam and used as a catalyst. In this manner, the fine-grained catalyst with the high dispersibility has the surface with special solid state properties so that dioxin having an organic component can be degraded when the catalyst surface has a temperature lowered by 250° C.

A vibrator for vibrating the tabular ceramics filter

8

may be provided to the tabular ceramic filter

8

attached to the incinerator with a ceramics filter according to the present invention so that the ceramics filter

8

is vibrated. With such a structure, the ceramics filter can be prevented from being clogged.

POSSIBILITY OF INDUSTRIAL UTILIZATION

Since the present invention has the above-described structure, the following advantages can be obtained.

At first, using the ceramics filter can completely remove dioxin which is a harmful substance and also remove an unburned material.

At second, taking a usage after incineration or an incineration time into consideration, it is possible to select an appropriate process to perform disposal without producing harmful substances.

Number	Name	Date	Kind
2845882	Bratton	Aug 1958	A
3566809	Carry	Mar 1971	A
3808619	Vanderveer	May 1974	A
4258017	Gelfand	Mar 1981	A
4508040	Santen et al.	Apr 1985	A
4599952	Meier	Jul 1986	A
5213051	Kaneko	May 1993	A
5913273	Maejima	Jun 1999	A
6324999	Maejima	Dec 2001	B1

Incinerator with ceramics filter

Information

Patent Number

Date Filed

Date Issued

Inventors

Original Assignees

Examiners

Agents

CPC

US Classifications

Field of Search

US

International Classifications

Abstract

Description

Claims

Priority Claims (1)

PCT Information

US Referenced Citations (9)