Method, filter press and control device for reducing the water c

Details Method, filter press and control device for reducing the water c Method, filter press and control device for reducing the water c

1997-03-21

1999-03-30

Gerrity, Stephen F.

Presses

Methods

With separation from material of liquid expressed

34 86, 34398, 34507, 34519, 44626, 100 41, 100 73, 100118, 100152, B30B 924, F26B 514

Patent

active

058875140

ABSTRACT:
The invention relates to a method, a press, and a control device for reducing the capillary-bound water content in fiber cells of carbon-containing, finely comminuted solid materials and/or sludges. The method according to the invention includes rapidly raising the movable press plate of a filter press while the pressure chamber remains closed. A steam-coal dust mixture is formed due to the rapid expansion. At the same time, a first discharge lock is opened while the second discharge lock remains closed so that the exhaust steam flows in the direction of the controlled outlet valve. The exhaust steam can then be sent to a heat exchanger and then to another heat exchanger and, finally, may be reused for a subsequent operating cycle.

REFERENCES:
patent: 4033253 (1977-07-01), Stollenwerk et al.
patent: 4702745 (1987-10-01), Kamei et al.
patent: 5697167 (1997-12-01), Kunz et al.
patent: 5711086 (1998-01-01), Stubbing

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