Hydraulic filter press is for solid-liquid separation. It is a machine using a hydraulic cylinder to generate a compressive force. It is widely used in many different fields, such as petroleum, chemical, dyestuff, metallurgy, pharmacy, food, papermaking, coal washing and sewage disposal, etc.
Hydraulic Filter Press Working Principle:
Filter presses comprise a set of filter plates covered by filter clothes and squeezed by a hydraulic cylinder between a stationary frame and a mobile supporting beam. The plates determine a watertight volume in which is pumped the pressurized sludge.
Filter presses comprise a set of filter plates covered by filter clothes and squeezed by a hydraulic cylinder between a stationary frame and a mobile supporting beam. The plates determine a watertight volume in which is pumped the pressurized sludge.
By means of a cylinder, the hydraulic unit keeps the balance between the plates squeezing and the filling pressure induced by the feeding pump throughout the filtration process. Under the pressure, the liquid passes through the filter cloth that holds the solid particles. The filtrates are drained out either by taps set on each plate or by lauders at the end of the filter. At the end of the plate compressing process, the cakes formed between the filter clothes are discharged by the backward movement of the supporting beam and the successive separation of the plates.