Rate control overflow system for disk screens

Details Rate control overflow system for disk screens Rate control overflow system for disk screens

1992-11-13

1993-08-17

Dayoan, D. Glenn

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Condition responsive means controls separating means

209234, 209672, B07C 500

Patent

active

052360938

ABSTRACT:
The system includes a variable speed motor (13) which controls the operation of a disk screen (14) which is part of a gyratory screen/disk screening system for wood chips and the like. Wood chips are fed at a variable rate to a storage bin (34), which includes a level sensor (36). The level sensor (36) controls the operation of a star feeder (42) to maintain the level of providing a varying amount of input material to the upstream end of the gyratory screen (12). The speed of the motor (46) driving the star feeder valve (42) is used to develop a control signal for the disk screen motor (13), to ensure a uniform flow rate off the disk screen.

REFERENCES:
patent: 4037712 (1977-07-01), Wochnowski
patent: 4223845 (1980-09-01), Selonke et al.
patent: 4235248 (1980-11-01), Schumacher
patent: 4376042 (1983-03-01), Brown
patent: 4658964 (1987-04-01), Williams
patent: 4940131 (1990-07-01), Swartz
patent: 5078274 (1992-01-01), Brown
patent: 5133507 (1992-07-01), Sepling et al.
patent: 5137621 (1992-08-01), Brown

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