Claims
- 1. A chamber filter press comprising in combination
- a plurality of first chamber plates fixedly secured in spaced relationship parallel to each other to at least one first hollow connecting rod, each of said first chamber plates comprising two spaced apart circular perforate backing plates extending parallel to each other and each being provided with a filter medium, the backing plates defining a first hollow space in each of said first chamber plates fluidly connected by a bore hole to said at least one first hollow connecting rod for discharging filtrate received through said filter medium and said perforate backing plates,
- a plurality of second chamber plates fixedly secured in spaced relationship parallel to each other to at least one second hollow connecting rod, each of said second chamber plates being provided with a circular opening and being substantially disposed parallel to and between two adjacent of said first chamber plates so as to receive circumferential end portions of the backing plates thereof so that second hollow spaces are defined within each of said second chamber plates by said adjacent backing plates, said second hollow spaces being in fluid connection with said at least one second connecting rod by respective bore holes for the supply of pulp to be filtered into the second hollow spaces,
- each of said first chamber plates being provided with a central through hole penetrated by a rotor shaft extending through said filter press parallel to said first and second connecting rods, said rotor shaft being provided with a plurality of rotor plates fixedly secured thereto in spaced relationship to each other, each of said rotor plates being disposed in a different one of said second hollow spaces and being provided with generally radially extending ribs,
- means for supporting said first and second connecting rods such that they are axially displaceable with respect to each other,
- driving means operationally connected to said first and second connecting rods so as to mutually axially displace said first and second connecting rods in order to effect a mutual movement of the first and second chamber plates between a closed position in which the second chamber plates engage both of the adjacent first chamber plates, and a first open position in which the first chamber plates in each case are pulled out on one side from one of the adjacent second chamber plates, and a second open position wherein the first chamber plates are pulled out on the other side from the other of said adjacent second chamber plates,
- wherein the outermost of said series of second chamber plates each are formed by end plates each having a circular recess housing a rotor plate and receiving the circumferential end portion of the backing plate of the respective adjacent first chamber plate and being provided with a central through hole penetrated by said rotor shaft,
- and driving means connected to said rotor shaft for rotatably driving and axially displacing said rotor shaft with respect to said first chamber plates.
- 2. A chamber filter press as set forth in claim 1 wherein said first chamber plates are provided with through bores in their edge portions and said second chamber plates are supported by a plurality of second connecting rods being slidably supported in said through bores.
- 3. A chamber filter press as set forth in claim 1 or 2 wherein said at least one first connecting rod is fixedly secured to an external crossbar supporting said rotor shaft driving means, said external crossbar being operationally connected to said connecting rod mutual displacement driving means.
- 4. A chamber filter press as set forth in claim 1 or 2 wherein said rotor shaft and said rotor plates each are hollow, the hollow spaces defined thereby being fluidly connected with each other, the rotor plates being provided with spray nozzles directed to the backing plates.
- 5. A chamber filter press as set forth in claim 1 or 2 wherein said rotor shaft and said rotor plates each are hollow, the hollow spaces defined thereby being fluidly connected with each other, the rotor plates being provided with flexible membranes defining the hollow spaces and being adapted to be pressed towards the filter medium supported by the opposing filter medium supported by the respective backing plates upon inflation of said hollow spaces by means of a pressurized fluid.
- 6. A chamber filter press comprising a housing having side walls and being closed at both ends by end plates, a stack of a plurality of filter plates having parallel extending sides being disposed within said housing in parallel relationship with respect to each other and each defining a first hollow space within said filter plates being covered at one of said parallel extending sides by a perforate backing plate provided with a filter medium, one of said end plates being formed as a filter plate as well, said filter plates being held in spaced relationship with respect to each other and to the end plates by spacers so as to define a plurality of second hollow spaces between said filter plates, said filter and end plates each being provided with a central through bore penetrated by a rotor shaft, said rotor shaft being provided with a plurality of rotor plates secured thereto so as to rotate therewith and each being disposed in a different one of said second hollow spaces, said housing comprising at least one input opening for the supply of liquid to be filtered into said second hollow spaces, and a plurality of outlets for draining filtrate from said first hollow spaces, driving means for rotatably driving and axially displacing said rotor shaft with respect to said housing, and means for removing said side walls in the axial direction of said rotor shaft from said stack of filter plates and said rotor shaft so as to open said second hollow spaces for the discharge of filter cakes formed on said backing plates during operation of the filter press.
- 7. A filter press as set forth in claim 6 wherein the filtrate drain outlets are provided in said side walls.
- 8. A filter press as set forth in claim 6 or 7 wherein said rotor shaft and said rotor plates each are hollow, the hollow spaces defined thereby being fluidly connected with each other by connecting bore holes in said rotor shaft, said rotor plates being provided with spray nozzles directed towards said backing plates.
- 9. A filter press as set forth in claim 6 or 7 wherein said rotor shaft is hollow and a tie rod penetrating said hollow rotor shaft releasably engages the end plates of said housing.
- 10. A filter press as set forth in claim 9 wherein said tie rod is coupled to a driving means for tightening and releasing the engagement of said tie rod with said housing end plates.
- 11. A filter press as set forth in claim 6 or 7 wherein said spacers each are ring members being provided with filter cake discharge openings in their circumference.
Parent Case Info
This application is a continuation of application Ser. No. 757,006, filed July 19, 1985, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (10)
Number |
Date |
Country |
252577 |
Oct 1911 |
DE2 |
217590 |
Mar 1920 |
DE2 |
2226957 |
Dec 1973 |
DEX |
2449817 |
Sep 1976 |
DEX |
517876 |
May 1921 |
FRX |
1323483 |
Feb 1963 |
FRX |
1356496 |
Feb 1964 |
FRX |
230613 |
Dec 1984 |
JPX |
100382 |
Sep 1969 |
NLX |
22560 |
Jan 1912 |
GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
757006 |
Jul 1985 |
|