Conveyors: fluid current – With diverse power-driven conveyor – Rotary
Patent
1992-04-15
1993-08-17
Mitchell, David M.
Conveyors: fluid current
With diverse power-driven conveyor
Rotary
406 63, 406105, 406109, B65G 5330, B65G 5340, B65G 5346
Patent
active
052362850
ABSTRACT:
A high pressure transfer device for feeding wood chips to a digster in the production of paper pulp has enhanced efficiency. A pocketed rotor is mounted for rotation in a housing having first through fourth ports, with a screen at the third port for screening wood chips out of liquid passing through that third port. This screen is blanked at the leading edge in the direction of rotation so that as a pocket rotates into operative association with the first and third ports, the pocket inlet has an arcuate extent of about two inches which is exposed to the first port --large enough to allow chips to start flowing freely into the pocket--before the outlet of that pocket is exposed to a suction source in communication with the screen. A pump supplies high pressure liquid to the second port, but the second and fourth ports are constructed so that a pocket inlet--as the rotor rotates into operative association with the second and fourth ports--is not operatively exposed to the high pressure liquid from the pump until that pocket outlet is already in communiction with the fourth port over an arcuate extent of about two to three inches, allowing chips in the pocket to escape rather than be compressed by the high pressure flow.
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Kamyr Inc.
Kannofsky James M.
Mitchell David M.
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