The horizontal allocation makes this press filter one of the most efficient cake washing filters, especially for counter current washings. Two mechanically different types exist. One supports the polyester press filter screen on a rubber carrier belt, which in turn runs on a sealing belt which forms the seal between the rubber carrier belt and the vacuum box. The other types are inherently simpler as they do not rely on any carrier belts but support the polyester press filter screen on the vacuum boxes. Open and gas-tight constructions are available.

Structurally, except that the essential polyester filter belt is a filter medium which is subjected to a vacuum source, these filters like a conveyor belt. Feed is introduced at one end, where it is normally allowed to settle under gravity for a few seconds, causing the coarser fraction to form its own pre-coat.

Thereafter the suspension is subjected to full vacuum application. Since the cake thickness can be controlled almost at will by increasing or reducing the speed of travel, one can filter at optimum cake thickness to obtain the required residual moisture and/or the required cake washing efficiency.

Anna
Sales Department
Hebei Defeng Polyester Fiber Co., Ltd
Add: Jingjiu Railway west, wugong town, Raoyang County
TEL: 86-311-67699480
FAX: 86-311-67699480
Website: www.china-polyestermesh.com. 
E-mail:anna@china-polyestermesh.com

Tag: polyester press filter screen, polyester filter belt