Screen blockage measurement and flow performance...

Details Screen blockage measurement and flow performance... Screen blockage measurement and flow performance...

2010-02-25

2010-12-21

Smith, Duane (Department: 1797)

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

C210S739000, C210S783000, C210S791000

Reexamination Certificate

active

07854850

ABSTRACT:
An apparatus and method are provided that enable the control of a screening operation based on a calculated screen blockage percentage and the velocity throughput of the screen. The apparatus includes an upstream level detector, a downstream level detector and a flow determining device which determines the volumetric flow through the screen. The apparatus may further include a blockage determination unit which determines the percent screen blockage based on the flow level upstream of the screen, the flow level downstream of the screen and the volumetric flow.

REFERENCES:
patent: 4394272 (1983-07-01), Damerau
patent: 5800701 (1998-09-01), Larsen
patent: 6129215 (2000-10-01), Brauch et al.
patent: 6165370 (2000-12-01), Heissenberger
patent: 6733663 (2004-05-01), Simon et al.
Coppermine Bandscreen Monster Submittal & Brochure (Dated Jan. 31, 2007).

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