The diaphragm filter press is a kind of intermittent operation of the pressurized filtration equipment which is suitable for the solid-liquid separation.

It is widely used in coal washing , Oil, chemicals, dyes, metallurgy, medicine, food, alcohol and other fields, but also for textile, printing and dyeing, pharmaceutical, paper, leather and other industrial waste water and urban sewage treatment and other areas that need to be solid-liquid separation.

When the diaphragm filter press works, all the filter plates are pressed between the movable head plate and the fixed tail plate, so that the adjacent filter plate is formed with a sealed filtering chamber around. After all the filter chambers are filled with pulp, the pressure filtration process begins, and the slurry is separated from the pulp by the feed pump.The solid particles are left in the filter chamber due to the barrier of the filter cloth, and the filtrate is discharged through the filter cloth along the drainage channel on the filter plate,and the filtrate is not discharged, that is, the dewatering process is completed. At this point, the material can be stopped and the head plate is returned to the original position.