Free-flowing bulk material discharge system - incorporates shutter of flexible material with mounting at top

摘要

The system discharges free-flowing fine granular matl. in bulk from a chamber with lower internal pressure into one with higher internal pressure, having a movable shutter at the outlet opening under the weights of the matl. to be discharged, and is partic. for handling cement deposited in a cyclone. The shutter is of flexible elastic matl., with its mounting at the top, and can have horizontal stiffening ribs running at right angles to the direction in which the matl. travels. The design gives an efficient seal, even when the matl. does not fill the entire cross-section of the outlet.