Patent Application
20080087399
The preferred embodiments of the present invention are shown by way of example, and not limitation, in the accompanying figures, in which:
It is explained about preferred detailed description of the preferred embodiment in the first invention.
At first, it is preferable for spacer member to comprise spacer main body and a pair of leg portions. In addition, spacer main body comprises a pair of tilting surfaces formed in the shape of a mountain, wherein a pair of leg portions is formed by lower part of spacer main body, and it makes engage on both sides of elongated protruding portion. In this case, spacer member can be installed in stability in elongated protruding portion because a pair of leg portions sandwiches elongated protruding portion. In addition, when intermediate of building board is put on suction box, and it dehydrates, the water that dropped on spacer member drifts over a pair of tilting surfaces formed in the shape of a mountain, and it flows down in suction box. Therefore intermediate of building board can be dehydrated still more easily.
In addition, it is preferable for a pair of fixture members to have overall length to fix bridge members every predetermined numbers in frame member with bottom plate. In this case, bridge members of predetermined numbers can be removed from frame member with bottom plate by removing a pair of fixture members. Therefore, only bridge member needing disassembly can be easily removed partially.
In the following paragraphs, some preferred embodiments of the invention will be described with reference to the attached drawings by way of example and not limitation.
It should be understood based on this disclosure that various other modifications can be made by those in the art based on these illustrated embodiments.
Embodiment of suction box and dehydrator with pressurization, forming machine using thereof of the present invention is explained below with a drawing.
According to
Suction box 1 of embodiment has frame member with bottom plate 2, plural bridge members 3, plural spacer members 4 and a pair of fixture members 5.
According to
In addition, plural bridge members 3 are parallel each other, and they are rectangle in the direction which is perpendicular to elongated protruding portions 23, and they are installed on elongated protruding portions 23.
Plural spacer members 4 install on each elongated protruding portions 23 in interval of each bridge members 3 respectively.
A pair of fixture members 5 installs in ends of bridge member 3, and bridge member 3 is fixed to frame member with bottom plate 2.
Suction box 1 of embodiment is explained below in detail with
According to
In addition, an aspiration hose of vacuum aspiration apparatus is put on to each scuppers 24 in frame member with bottom plate 2, suction box 1 can be aspirated in vacuum.
According to
In ends of bridge member 3, there is engaged portion 31 that is lower height than a general part of bridge member 3 by forming notch in the upper part. And bridge member 3 is fixed by engaging a pair of engaged portions 31 with a pair of fixture members 5.
In addition, according to
In contrast, according to
In addition, according to
To fixture member 5, screw hole 52 that a screw is passed through is formed, in neighborhood of outer frame portion 22 in bottom plate portion 21 of frame member with bottom plate 2, screw hole 211 to engage a screw passed through screw hole 52 in fixture member 5 threadedly is formed.
In addition, according to
According to
In addition, when intermediate of building board 8 is put on suction box 1, and this intermediate of building board 8 is dehydrated, water 81 that dropped on spacer member 4 drifts over a pair of tilting surfaces 411 formed in the shape of a mountain, and it can flow down in suction box 1.
In addition, according to
In contrast, according to
In addition, according to
Furthermore, a pair of tilting surfaces 411 which is form of mountain can be formed in form of mountain of the trapezium that a leading edge is flush (an illustration is omitted).
In addition, according to
In contrast, according to
Spacer member 4 has thickness of 2-5 mm. And shape of plural spacer members 4 to apply to suction box 1 are same, width of dehydration space 32 formed between each bridge members 3 is same.
In addition, spacer member 4 can be made various kinds of materials such as iron, stainless, aluminum or plastic etc.
In bridge member 3, thickness of cross direction can be made 6-15 mm, and height can be made 25-60 mm, and, overall length can be made 900-2000 mm. Particularly, thickness of cross direction can be made 9-12 mm, and height can be made 32-50 mm, and overall length can be made 1000-1500 mm.
In addition, thickness of spacer member 4 can be made 2-5 mm.
And space to form between each bridge members 3 becomes same as thickness of spacer member 4.
Cement material, hydraulic inorganic material and siliceous material can be used as material of intermediate of building board 8. And intermediate of building board 8 makes that raw materials is dissolved in water, and it can be molded by wet forming. Forming process Such as Hatschek process, flow on process, filter pressing process or batch method can be used.
For cement material, Portland cement, high early strength Portland cement, Portland blast furnace cement, silica cement, Portland fly-ash cement, high-alumina cement can be used.
In addition, for hydraulic inorganic material, blast furnace slag, quicklime, hydrated lime, gypsum can be used.
In addition, for siliceous material, silica sand, silica powder, fly ash, silica fume, bentonite, diatomaceous earth, mica can be used.
In addition, wood fiber such as wood flake, wood wool, woody pulp, wood fiber bundle, and reinforcement synthetic fiber such as vinylon, polypropylene, and light-weight aggregate such as expanded perlite, shirasu-balloon, and cement accelerator such as aluminum potassium sulfate, sodium silicate, and water repellent such as paraffin, silicon, and styrofoam bise can be incorporated into material of intermediate of building board 8.
Next, assembly procedure of suction box 1 is explained.
On assembling suction box 1, spacer member 4 is installed on plural elongated protruding portions 23 of frame member with bottom plate 2.
Subsequently, on plural elongated protruding portions 23, the first bridge member 3 is put. Then, The first bridge member 3 makes the elongated direction L be perpendicular to formation direction D of elongated protruding portion 23, and it is put. In addition, the first bridge member 3 makes touch spacer main body 41 in each spacer member 4, and it is put (see
Subsequently spacer members 4 are installed on plural elongated protruding portions 23 respectively.
Then, it makes elongated protruding portion 23 engage a pair of leg portions 42 of spacer member 4, and it makes the spacer main body 41 touch side face of bridge member 3.
In addition, catching portion 421 in a pair of leg portions 42 of spacer member 4 is inserted in undersurface of the first bridge member 3 (see
Subsequently, on plural elongated protruding portions 23 in frame member with bottom plate 2, the second bridge member 3 is put. Then, it makes the second bridge member 3 touch spacer main body 41 of plural spacer members 4, and it is put on parallelism to the first bridge member 3.
And bridge members 3 of predetermined number are put on elongated protruding portions 23.
Afterwards, fixture member 5 is installed in ends of bridge member 3 of predetermined number respectively, and bridge member 3 is fixed to frame member with bottom plate 2 by means of this fixture member 5 (see
In addition, catching portion 421 in a pair of leg portions 42 is inserted in undersurface of adjacent bridge member 3 when spacer member 4 is installed in an intermediate position of frame member with bottom plate 2.
When spacer member 4 is installed in edge position of frame member with bottom plate 2, catching portion 421 in a pair of leg portions 42 is inserted in undersurface of outer frame portion 22.
Each bridge members 3 are fixed to frame member with bottom plate 2 by repeating installation of bridge member 3, spacer member 4 and fixture member 5, and suction box 1 can be assembled in this way.
And, between each bridge members 3, dehydration spaces 32 opening to the upper part are formed (it is included between bridge member 3 and outer frame portion 22 in frame member with bottom plate 2).
In addition, as for each spacer members 4, position gap is prevented by a pair of leg portions 42.
According to
Next, procedure dehydrating intermediate of building board 8 by dehydrator with pressurization 6 using of described above suction box 1 is explained.
When intermediate of building board 8 is dehydrated, at first suction box 1, water permeability sheet 62 and intermediate of a building board 8 are put on lower press 61B sequentially. In addition, an aspiration hose of an aspirator is connected to scupper 24 in frame member with bottom plate 2 of suction box 1.
Intermediate of building board 8 of the present embodiment is material slurry, solid content concentration is 25% by mass, and remainder comprises water.
As for the composition of solid content, cement material is 40% by mass, and siliceous material is 48% by mass, and reinforcement fiber is 9% by mass, and light-weight aggregate is 3% by mass.
And vacuum aspiration in suction box 1 is performed by an aspirator, and upper press 61A is dropped for lower press 61B which suction box 1, water permeability sheet 62 and intermediate of building board 8 were put on.
Then, suction box 1, water permeability sheet 62 and intermediate of building board 8 are kept pressurizing between lower press 61B and upper press 61A.
Water 81 included in intermediate of building board 8 falls over dehydration space 32 in suction box 1, and it is aspirated from scupper 24 in this way.
Therefore, it is quick and effective to dehydrate intermediate of building board 8.
In addition, pressurization pressure by a pair of presses 61 is 5.0N/mm2, and aspiration pressure with an aspirator is about −0.35 MPa.
In addition, intermediate of building board 8 was dehydrated, and the building board that water content was 100% was produced (weight of intermediate of building board 8 in humid condition is double as opposed to mass of building board of dry state).
Dehydration rate in intermediate of building board 8 was able to be equalized by dehydrating intermediate of building board 8 using suction box 1 of described above structure.
When intermediate of building board 8 is dehydrated, ingredient in this intermediate of building board 8 flows out on suction box 1, and it happened that effluent accumulates to suction box 1 as inessential.
Particularly, ingredient of intermediate of building board 8 comprises hydraulic inorganic material such as cement, hardening begins in the state which there is water, it is easy to accumulate to suction box 1 as inessential.
Then, in suction box 1 of embodiment, when inessential felt in suction box 1 is removed, bridge member 3 can be removed from frame member with bottom plate 2 by removing fixture member 5. Therefore maintenance of suction box 1 can be performed easily.
In addition, each removed bridge member 3 can be washed individually because every predetermined number can remove bridge member 3. By this, the clogging which occurred to suction box 1 can be easily solved, and hour to need for maintenance can be reduced.
Therefore productivity of building board can be improved.
In suction box 1 of the present embodiment, bridge member 3 is fixed to frame member with bottom plate 2 by using fixture member 5, it is not necessary to form fastening hole to fix to frame member with bottom plate 2 to bridge member 3 directly.
Therefore it can make reduce manufacturing cost of suction box 1.
In addition, application number of bridge member 3 is changed by performing changes of thickness of spacer member 4 to use, and opening area ratio of dehydration space 32 formed between each bridge members 3 can be changed easily.
Therefore, pressurization pressure by a pair of presses 61 of dehydrator with pressurization 6 and aspiration force with an aspirator are accepted, and opening area ratio of dehydration space 32 can be changed in the opening area ratio which was suitable for dehydration of building board intermediate easily.
In addition, opening area ratio of dehydration space 32 shows opening area by space formed between each bridge members 3 (it is included between bridge member 3 and outer frame portion 22 in frame member with bottom plate 2).
According to
Material slurry 80 is supplied to flow box 71 from tank 74. And material slurry 80 flows down on endless water permeability sheet 72 from flow box 71. Endless water permeability sheet 72 rotates between flow box 71 and making roll 73. Suction box 1 is placed under endless water permeability sheet 72.
Water 81 is aspirated from under endless water permeability sheet 72, and it is dehydrated. Material slurry 80 that water content went low by being aspirated forms sheet shape.
Afterwards, it is rolled up to making roll 73, and predetermined thickness was become, and it is separated from making roll 73, and it is green mat.
Aspiration force and number of suction box 1 are changed by concentration of material slurry 80 and transport speed of endless water permeability sheet 72, and appropriate dehydration is performed.
Here, it was explained in forming machine of so-called flow on process. However, Hatschek process, filter pressing process and batch process etc. are the same.
Forming machine 7 is not pressing with press such as dehydrator with pressurization 6, but a facility, an effect and constitution as suction box 1 are the same.
While the present invention may be embodied in many different forms, a number of illustrative embodiments are described herein with the understanding that the present disclosure is to be considered as providing examples of the principles of the invention and such examples are not intended to limit the invention to preferred embodiments described herein and/or illustrated herein.
While illustrative embodiments of the invention have been described herein, the present invention is not limited to the various preferred embodiments described herein, but includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.q., of aspects across various embodiments), adaptations and/or alterations as would be appreciated by those in the art based on the present disclosure.
The limitations in the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive.
For example, in the present disclosure, the term “preferably” is non-exclusive and means “preferably, but not limited to”.
In this disclosure and during the prosecution of this application, the terminology “present invention” or “invention” is meant as a non-specific, general reference and may be used as a reference to one or more aspect within the present disclosure.
The language present invention or invention should not be improperly interpreted as an identification of criticality, should not be improperly interpreted as applying across all aspects or embodiments (i.e., it should be understood that the present invention has a number of aspects and embodiments), and should not be improperly interpreted as limiting the scope of the application or claims.
In this disclosure and during the prosecution of this application, the terminology “embodiment” can be used to describe any aspect, feature, process or step, any combination thereof, and/or any portion thereof, etc.
In some examples, various embodiments may include overlapping features.
