B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
B30B 11/00 (2006.01) B29B 17/00 (2006.01) B29C 47/10 (2006.01) B30B 9/30 (2006.01) B30B 11/22 (2006.01) B30B 15/30 (2006.01) F04D 7/04 (2006.01)
Patent
CA 2047314
A method of pumping particulate solids that have an initial bulk density which is lower than its structural density; the method comprises providing a flow channel (12) having an inlet (120) and an outlet (129) and including (i) an annular drag flow channel segment (L1) formed between a stationary outer wall member (14) and a rotating circular inner wall member (16); and (ii) a straight channel segment (L2) formed between a first planar and stationary wall portion (148) and a second planar and stationary wall portion (182); the inlet (120) of rotary channel (12) is that of the drag flow channel segment (L1) while the outlet (129) of flow channel (12) is that of the straigth channel segment (L2); no axial cross-section of the flow channel (12) between the inlet (120) and the outlet (129) is smaller than the axial cross-section of the inlet (120); the particulate solid is passed through the flow chan- nel (12) so as to increase the initial bulk density and avoid- ing significant melting and/or thermal degradation of the particulate solid while in the flow channel (12).
Gpw Macchine S.a.s. Di Giuseppe Ponzielli & C.
Ridout & Maybee Llp
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