Compounded rubber overall-diaphragm filter plate

Abstract

The invention relates to a compounded rubber overall-diaphragm filter plate. The compounded rubber overall-diaphragm filter plate comprises a steel filter plate, wherein a charging hole is formed in the center of the filter plate; a filter frame formed by welding of round steel is arranged at the peripheral edges of the front and rear surfaces of the filter plate; handles are arranged on two sides of the filter frame; a diaphragm covers the outer surfaces of the filter frame and the filter plate and is hermetically glued to the filter plate at the filter frame and the charging hole; a closed cavity is formed between the diaphragm and each of the front and rear surfaces of the filter plate; the middle and periphery of each closed cavity are closed; a compression medium inlet which is communicated with the two closed cavities is formed in one side of the filter plate; filter cloth covers the outer side of the diaphragm. The compounded rubber overall-diaphragm filter plate is high in elasticity, good in sealing performance, good in temperature resistance, good in structural strength, long in service life, unlikely to deform and break, and low in comprehensive maintenance cost; a steel framework can be repeatedly utilized.

Description

technical field [0001] The invention relates to the field of filter presses, in particular to a 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 disadvantages of traditional filter press diaphragm filter plates are: the diaphragm and core plate are of split structure, the skeleton material is mostly reinforced polypropylene, the positions that need to be connected, such as the feed hole and the liquid outlet hole, are connected by flanges, and a set of diaphragms consists of a piece The filter plate is composed of a filter plate and a diaphragm filter plate assembly. The skeleton and filter plate are easily deformed and damaged, the diaphragm pressing effect is poor, and the water content of the filter cake is high; Welding with the diaphragm is easy to form defects that affect its performan...

AI Technical Summary

Problems solved by technology

The disadvantages of traditional filter press diaphragm filter plates are: the diaphragm and core plate are of split structure, the skeleton material is mostly reinforced polypropylene, the positions that need to be connected, such as the feed hole and the liquid outlet hole, are connected by flanges, and a set of diaphragms consists of a piece The filter plate is composed of a filter plate and a diaphragm filter plate assembly. The skeleton and filter plate are easily deformed and damaged, the diaphragm pressing effect is poor, and the water content of the filter cake is high; Welding with the diaphragm is easy to form defects that affect its performance. The welding yield of the filter plate is not high, the variability in the filtration process, the temperature resistance is poor, the service life is not long, and the comprehensive maintenance cost of the filter plate is high.

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