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What is Plate and frame filter press

Mar 16,2022

What is Plate and frame filter press

Plate and frame filter press consists of alternately arranged filter plates and filter frames to form a group of filter chambers. The surface of the filter plate has grooves, and its protruding parts are used to support the filter cloth. There are holes on the corners of the filter frame and the filter plate, which form a complete channel after assembly, which can pass in the suspension, wash water and lead out the filtrate.

 There are handles on both sides of the plate and the frame, which are supported on the beam, and the plate and the frame are pressed by the pressing device. The filter cloth between the plate and the frame acts as a sealing gasket. 

The suspension slurry is pumped  into the filter chamber by the feed pump to form a filter residue on the filter cloth until the filter chamber is filled. The filtrate passes through the filter cloth and flows along the groove of the filter plate to the corner channel of the plate frame, and is discharged centrally. 

After filtration, the filter residue can be washed with clean water. After washing, compressed air is sometimes introduced to remove the remaining washing liquid. Then open the filter press to remove the filter residue, clean the filter cloth, re-press the plate and frame, and start the next working cycle.

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