Device for continuous filtration and drying of a solid suspensio

Details Device for continuous filtration and drying of a solid suspensio Device for continuous filtration and drying of a solid suspensio

1995-10-30

1997-08-12

McCarthy, Neil

Liquid purification or separation

Processes

Separating

210774, 34424, C02F 1112

Patent

active

056561792

ABSTRACT:
The device for continuous filtration and drying of a solid suspension comprises a belt filter (1) and downstream a belt drier (2). By means of a porous conveyor belt (3) the filter cake generated in the belt filter (1) is conveyed further into the belt drier (2) in which there are provided heating devices for heating and drying the filter cake (7) which is on the conveyor belt (3). After leaving the belt filter (1), the filter cake (7) is present on the conveyor belt (3) in the form of a gas-permeable bed of solids in layer form having a maximum layer thickness of 50 mm, preferably a maximum of 20 mm. The heating devices in the belt drier comprise, on the one hand, a hot gas chamber (8) disposed above the conveyor belt (3) to generate a hot gas which flows through the bed of solids downwardly from above and, on the other hand, one or more contact heating elements (10, 15, 18, 19, 20, 22) disposed above and/or below the conveyor belt (3).

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