JPH0518607U - Filter press filter plate - Google Patents

Abstract

(57) [Summary] [Purpose] We propose a filter plate with a metal filter medium that has good cake peelability and is easy to put on and take off. [Structure] A filter material made of a metal mesh is stretched on both sides of the filter floor frame of the filter plate configured in a concave shape, and its peripheral portion is supported by a frame-shaped seal band fixed to the filter floor plate. A frame-shaped filter chamber frame with a portion corresponding to the filter medium cut out is attached to the filter medium.The filter medium is firmly supported by the filter medium plate and the filter chamber frame, and during pressure filtration, the filter medium is more firmly fastened to a high pressure. It is possible to form a filtration chamber that can endure, and at the time of disassembly, the filter medium can be attached and detached only by unfastening and slightly separating the filter chamber frame from the filter floor plate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a filter plate of a filter press, and an object of the present invention is to provide a filter plate in which the filter material can be easily attached and detached.

[0002]

[Prior Art]

 Conventionally, a filter cloth has been generally used as a filter medium used in a filter plate of a filter press, and a filter cloth is fixed to the filter plate and a filter cloth is adapted to run between filter plates when discharging cake. Further, there is also one using a wire mesh as the filter medium. The invention of JP-B-52-6903 is an example of a filter cloth running between filter plates, and JP-B-38-23688 is an example of using a wire mesh as a filter material.

[0003]

[Problems to be solved by the device]

 Conventionally, a filter press has a high filtration efficiency because high pressure is applied to the undiluted solution used as a filter, but the high pressure causes the cake to be pushed into the filter media, making it difficult to peel off. There is. Therefore, the filter cloth becomes clogged after a short period of use and must be replaced. In addition, since high pressure is applied to the filter medium, strength is required and mounting must be firm. For this reason, updating the filter media also takes time. Further, the wire mesh such as Japanese Utility Model Publication No. 38-23688 is limited in use in the case of a cake having a good peeling property.

[0004]

[Means for Solving the Problems]

 This invention uses a metal filter medium which has strength as a filter medium and allows the cake to be easily peeled off, and the metal filter medium can be easily attached to the filter plate. A filter bed plate with a concave filter bed on each side is constructed, and a metal filter medium is placed on the filter bed of the filter bed plate and its peripheral edge is supported by a frame-shaped seal band. A frame-shaped filter chamber frame is placed on the periphery of the metal filter medium, and the filter chamber frame is fastened and disengageable to a filter floor plate.

[0005]

[Action]

 The filter plate according to the present invention is configured as described above, and therefore, in order to configure the filter plate, a seal band is placed on the filter floor plate, and the periphery of the filter medium is supported by the seal material, and then the frame. It is sufficient to attach the filter chamber frame of the shape to the filter floor plate. By performing such an operation on both sides of the filter floor frame, it is possible to construct a filter plate having filter media mounted on both sides thereof. The filter medium of the filter plate thus configured is firmly held by the filter chamber frame around the entire periphery thereof being fastened to the filter floor frame.

Further, the filter medium thus mounted on the filter floor frame can be easily removed even if the filter medium is removed by only loosening the mounting screw for fastening the filter chamber frame. In this case, if the seal band is provided with a protrusion that normally projects outward from the tightening surface of the filter floor plate with the filter chamber frame and is compressed and tightened, the tightening screw can be loosened. As a result, the filter floor plate and the filter chamber frame are dissociated, and the filter medium can be easily attached and detached. Hereinafter, the invention will be specifically described with reference to the drawings.

[0007]

【Example】

 FIG. 1 is a horizontal oblique view showing an assembled state of a filter plate according to the present invention. In the figure, reference numeral 1 is a filter floor plate, 2 is a filter chamber frame, 3 is a filter medium made of metal mesh, and 4 is a filter floor frame. It is a filtration bed formed in the middle recess. FIG. 2 is a perspective view showing a state in which the filter plate is disassembled, and the above-mentioned members are connected as follows. That is, as shown in FIG. 3, the metal mesh 3 is fastened to the filter floor plate 1 by the filter chamber frame 2 after the peripheral portion is placed on the seal rubber 5 laid around the filter floor 4 of the filter floor plate 1. 2a is the fastening hole. Further, the seal rubber 5 is provided with a guide protrusion 5a protruding from the sealing surface, and the guide protrusion 5a is configured to be longer than the depth of the guide hole 2b of the filter chamber frame 2 and When the fastening of the frame 2 to the filter floor plate 1 is loosened, the filter chamber frame 2 is pushed away by its elasticity. Further, as shown in FIGS. 1 and 5, the guide protrusion 5a is not provided in the portion where the metal mesh 3 is inserted. Next, FIG. 3 and FIG. 4 are vertical cross-sectional views showing a state in which the filter plates combined as described above are suspended on the rails of the machine body, and the reference numeral 6 supports the filter medium 3 laid on the filter bed 4. It is fixed to the filter floor plate 1 with a screw 6a by means of screws 6a (see FIG. 1). In FIG. 1, reference numeral 7 is a support arm of the filter plate, 8 is a filtrate outlet, and 9 is a stock solution supply hole. Indicates.

The filter plate according to the present invention is configured as described above. To assemble the filter plate, the seal rubber 5 is laid on the filter floor plate 1 in which the punching metal 6 is attached to the filter floor 4, and the seal rubber 5 is laid. The metal mesh 3 is placed on the support 5, and the peripheral portion thereof is supported by the seal rubber 5. Next, the guide protrusion 5a of the seal rubber 5 is aligned with the fastening hole 2b of the filter chamber frame 2, and then the filter chamber The frame 2 may be fastened to the filter floor plate 1.

In the thus assembled filter plate, the metal mesh 3 is held by the filter chamber frame 2 and the filter floor plate 1, and the periphery of the metal mesh 3 is sealed by the seal rubber 5. Then, a filter chamber sealed with the opposing filter plate can be formed. When the filter chamber is formed, the tighter the filter plates are, the closer the seal portion (seal rubber 5) is in contact with each other, and the stronger the filter chamber can be formed.

Next, in order to disassemble the filter plate assembled as described above, the metal mesh 3 can be removed from the filter plate only by touching the fastening between the filter floor plate 1 and the filter chamber frame 2. In this case, if the guide protrusion 5a is made longer than the depth of the guide hole 2a as in this case, the filter material is removed from the filter plate only by loosening the fastening without completely separating the filter floor plate 1 and the filter chamber frame 2. It is convenient to pull out.

[0011]

[Effect of the device]

 As described above, the filter plate according to the present invention can form a strong filtration chamber using the metal filter medium, and in particular, the filter plate according to the present invention uses the metal filter medium, so that the filter cake The clogging is small and the filter medium can be easily replaced, and the problems of the conventional product can be solved.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing a filter plate according to the present invention.

FIG. 2 is an exploded perspective view of a filter plate according to the present invention.

FIG. 3 is a vertical sectional side view of a filter plate according to the present invention, showing a state in which a filter floor plate and a filter chamber frame are fastened together.

FIG. 4 is also a vertical side view of the filter plate, showing a state in which the filter floor plate and the filter chamber frame are unfastened.

FIG. 5 is a perspective view of a seal band according to the present invention.

[Explanation of symbols]

 1 Filter floor plate 1a Filtration floor 2 Filtration chamber frame 3 Metal mesh 4 Filtration floor 5 Seal rubber

Claims (1)

[Scope of utility model registration request] 1. A filter bed 1 having concave surfaces on both sides thereof.
a filter floor plate 1 provided with a, and the filter bed 1 of the filter floor plate 1
A metal filter medium 3 is placed on a, and the periphery of the metal filter medium 3 is covered with a seal band 5.
A filter plate of a filter press in which a frame-shaped filter chamber frame 2 is placed on the periphery of the metal filter medium 3, and the filter chamber frame 2 can be fastened and disengaged to a filter floor plate 1 while being supported by