Screw conveyor having stopper bar means

Details Screw conveyor having stopper bar means Screw conveyor having stopper bar means

B - Operations, Transporting

65

G

198/51, 222/84.3

B65G 33/14 (2006.01) B30B 11/24 (2006.01) B65G 45/00 (2006.01)

Patent

CA 1058547

ABSTRACT OF THE DISCLOSURE An improved screw feeder such as may be used for conveying ligno-cellulosic materials such as wood chips, shavings, sawdust and the like to pulping apparatus includes a plurality of stopper bars positioned symmetrically about the inner periphery of the screw feeder throat inlet. The stopper bars are narrow, elongate wedge-shaped and extend from the greater diameter flare bore of the conical throat to the lesser diameter taper bore. The stopper bars prevent material from rotating with the screw rather than advancing longitudinally through the throat and thus decrease plugging and clogging problems so that a higher pulping capacity due to improved feed is obtained.

276817

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