B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
302/26
B65G 53/66 (2006.01)
Patent
CA 1038421
ABSTRACT OF DISCLOSURE Disclosed herein is an apparatus for uniformly feeding particulate matter into a carrier gas, said apparatus including a particulate matter inlet duct communicating with a carrier gas conduit, means for introducing into the conduit upstream of the inlet duct, a flow of carrier gas which is maintained under constant pressure prior to introduction, a particulate matter pump communicating with the inlet duct and operable at a variable pumping rate to supply particulate matter through the inlet duct to the conduit, means for sensing the pressure in the conduit, and means connected to the pressure sensing means for varying the pumping rate of the pump in accordance with pressure variation in the conduit to maintain a uniform feed of particulate matter into the carrier gas flowing in the conduit. Also disclosed herein is a method of uniformly feeding particulate matter into a carrier gas comprising the steps of introducing a flow of carrier gas at a con- stant pressure into a conduit upstream of the introduction of particulate matter into the duct by a pump having a variable pumping rate, sensing the pressure in the conduit downstream of the introduction of the carrier gas, and varying the pumping rate of the pump in accordance with the pressure sensed in the conduit to maintain uniform particulate matter feed into the carrier gas flowing in the conduit.
195067
Waskiewicz John J.
Winston John H.
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