Diaphragm filter press, that is, diaphragm filter press, is a filter press with a layer of elastic film added between the filter plate and the filter cloth. During use, when the feeding is finished, the high-pressure fluid or gas medium can be injected into the diaphragm plate, then the whole diaphragm will bulge and press the filter cake, thus realizing the further dehydration of the filter cake, which is commonly referred to as pressing and filtering.

Diaphragm filter press has the advantages of high pressing pressure, good corrosion resistance, convenient maintenance, safety and reliability. It is the choice of customers in metallurgy, gas, papermaking, coking, pharmaceutical, food, brewing, fine chemical industry and other industries.

Diaphragm filter presses have been widely used in various fields that require solid-liquid separation. The diaphragm filter press is considered as an alternative upgrade equipment to the common chamber filter press.

The diaphragm filter press has shown good results in terms of processing capacity per unit area, reducing the moisture content of the filter cake, and adaptability to the properties of the treated material.

The main difference between the diaphragm filter press and the ordinary box filter press is that two elastic membranes are installed on both sides of the filter plate. During operation, when the feeding is finished, the high-pressure fluid medium can be injected into the diaphragm plate. At this time, the whole diaphragm will bulge and press the filter cake, thus realizing further dehydration of the filter cake, that is, press filtration.