Скачать или смотреть Diaphragm filter presses are used in the wastewater treatment industry.

The fully automatic membrane filter press is composed of a filter chamber arranged by membrane plates and box filter plates. Under the pressure of the feeding pump, the materials are input into the filter chamber, and the solids and liquids in the materials are separated through the filter medium (filter cloth). When the solids in the materials form a cake, water (or air) is injected into the membrane plated to fully squeeze the solids in the filter chamber.
Fully automatic programmed membrane filter press can reduce water content. Especially for the filtration of viscous materials and users with high requirements for moisture content, this machine has its unique characteristics. The filter plate is molded from reinforced polypropylene. The diaphragm and polypropylene plate are inlaid together, which is firm, reliable, not easy to fall off, and has a long service life. It is equipped with a variety of safety devices to ensure the safety of the operator and the normal operation of the filter press.
Working principle of the Filter Press
The main difference between the membrane filter press and the ordinary chamber filter press that two elastic membranes are installed on both sides of the membrane plate. During operation, high-pressure fluid (or gas) medium can be injected into the diaphragm. When the filter cake fills the whole filter chamber, the equipment stops filtering, and then fills the filter plate with pressure medium (water or gas). At this time, the whole diaphragm will bulge, making the pressure act on the filter cake. With the increasing pressure, the liquid in the filter cake that can pass through the filter cloth will be pressed out, and the secondary dehydration of the filter cake will be realized, making the water content of the filter cake lower.
The materials are pumped into each sealed filter chamber of the filter. Under the action of working pressure, the filtrate passes through the filter membrane or other filter materials and is discharged through the liquid outlet. The filter residue is left in the frame to form a filter cake, so as to achieve solid-liquid separation.
Filter press application areas
The program-controlled high-pressure chamber filter press is widely used for solid-liquid separation in petrochemical, metallurgical (gold, silver, copper, iron, zinc, rare earth, etc.), petroleum (light oil, glycerin, motor oil, vegetable oil etc.), ceramics (bentonite, active white clay, porcelain clay, etc.) and other industries.