An endless filter cloth with a continuous movement serves as the filter medium. A rubber belt is used to support the filter medium. The rubber belt is provided with milled grooves for filtrate discharge; it runs on a roller conveyor and on wearing and sealing belts over a stationary vacuum box, where the filtrates are collected and discharged.

To do this vacuum valve is closed, vent valve is opened and the discharge roller moves forward drawing the cloth with it. In the outboard position the valves reverse thus reapplying vacuum and the discharge roller retracts slowly discharging the cake.The filter cake is discharged at the discharge roller. The filter cloth is cleaned as the belt travels back.

The filter cake forms on top of the polyester filter belt and can undergo further treatment by washing (co-current or counter-current), steaming, extraction or vacuum drying. The wash filtrates can be recovered individually from each process step and further processed without any cross-contamination. 

Coco Qin
Sales Department
Hebei Defeng Polyester Fiber Co., Ltd
Add: Wugong Town West Raoyang County Hebei Province China
TEL: 0086-311-67699480
FAX: 0086-311-67699480
EAMIL: coco@china-polyestermesh.com 
Website: www.china-polyestermesh.com

Tag:filter cloth,polyester filter belt