Adjustable control valve system for rotating disc filter and met

Details Adjustable control valve system for rotating disc filter and met Adjustable control valve system for rotating disc filter and met

1997-11-13

1999-06-22

Drodge, Joseph W.

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

1374875, 210 90, 210116, 210247, 210331, 210404, 210406, 210486, 210780, B01D 3374, B01D 1712

Patent

active

059140488

ABSTRACT:
A control system for the vacuum cut-off valve of a rotating disc or drum filter is provided. The control system includes an actuator that is connected to the vacuum cut-off valve for adjusting the rotation of the vacuum cut-off valve with respect to the core. The actuator is linked to a controller which receives communications from a vacuum sensor that senses the level of vacuum inside the vacuum box. The controller sends signals to the actuator to either move the vacuum cut-off valve forward (or to a higher position) or rearward (or to a lower position) in response to the vacuum or pressure level inside the vacuum box.

REFERENCES:
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patent: 3363774 (1968-01-01), Luthi
patent: 3902960 (1975-09-01), Zentner et al.
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patent: 4223700 (1980-09-01), Jones
patent: 4608171 (1986-08-01), LaValley
patent: 4683059 (1987-07-01), LaValley
patent: 5053123 (1991-10-01), Clarke-Pounder et al.
patent: 5264138 (1993-11-01), Heino et al.
patent: 5503737 (1996-04-01), Luthi
patent: 5674396 (1997-10-01), Wenzl et al.

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