Elastomeric diaphragm filter plate

Abstract

The invention relates to an elastomeric diaphragm filter plate, which comprises a filter frame. The center layer of the filter frame is provided with a rigid core plate, the front and rear wall of the core plate are both covered with an elastic diaphragm, the elastic diaphragm and four sides of the filter frame are in sealing connection, sealed gas chambers are formed between the elastic diaphragm and the front and rear wall of the core plate, the side of the filter frame is provided with a water inlet of the water inlet hole, which extends into the core plate and extends from the inside of the core plate to both sides and is communicated with the two gas chambers, the apex angle of the filter frame is provided with a feeding hole, the feeding hole is communicated with a cavity outside the elastic diaphragm, the bottom angle of the filter frame is provided with a water outlet hole, the water outlet hole is communicated with the cavity outside the elastic diaphragm, two horizontal liquid outlet pipes are disposed inside the bottom frame of the filter frame, and the liquid outlet pipes are communicated with the cavity outside the elastic diaphragm. The structure has the characteristics of good compaction sealing performance, high filter plate strength, large pressing pressure, more uniform dewatering, and large pressing area, etc.

Description

technical field [0001] The invention relates to the field of filter presses, in particular to an elastomer diaphragm filter plate for a filter press. Background technique [0002] Filter press is the key equipment for solid-liquid separation, which can effectively purify the environment and protect the ecological balance. The diaphragm filter plate is composed of two diaphragms and a core plate, and the external medium (water or compressed air, etc.) enters the chamber between the core plate and the diaphragm to make the diaphragm bulge, thereby reducing the pressure on the diaphragm filter plate and the box filter plate. The composed filter cavity is compressed to achieve better separation and increase the solid content. Among them, the diaphragm is the main moving part, and the repeated movement is easy to deform and damage the diaphragm. A composite rubber integral diaphragm filter plate disclosed in patent CN201410164713.1 is a more commonly used type of diaphragm filt...

AI Technical Summary

Problems solved by technology

Among them, the diaphragm is the main moving part. Repeated movement will easily deform and damage the diaphragm.

A composite rubber integral diaphragm filter plate disclosed in patent CN201410164713.1 is a more commonly used type of diaphragm filter plate. This filter plate has the following defects: 1. It needs a box-type filter plate to be used as a matching plate; The feeding method leads to insufficient feeding pressure and poor filtering effect; 3. The rubber diaphragm is a detachable movable seal installation, and the sealing performance is not good

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