B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
137/137, 222/96,
B65D 83/06 (2006.01) B01J 8/12 (2006.01) B01J 8/24 (2006.01) F16K 13/00 (2006.01) F16K 13/10 (2006.01) F22B 31/00 (2006.01) F23C 10/26 (2006.01) F23C 10/28 (2006.01)
Patent
CA 1177802
ABSTRACT OF THE DISCLOSURE The invention relates to a valve and to a process for regulating flow of particulate solids from an upstream location to a downstream location. The valve includes an opening to the downstream location; means to provide a passage for the flow of particulate solids from the upstream location to the downstream opening; and means to seal the pressure at the upstream location from the opening to the downstream location. The valve also includes further means to impose a non-mechanical force on particulate solids immediately upstream of the opening to the downstream location; and means to regulate the pressure imposed on the particulate solids immediately upstream of the downstream opening. The process includes the step of sealing the pressure at the upstream location from the pressure at the downstream location; and regulating the pressure immediately upstream of the opening to the downstream location; whereby elevation of the pressure immediately upstream of the downstream location to a level above the pressure at the downstream location causes flow of particulate solids and whereby reduction of the pressure immediately upstream of the downstream opening to a level below the pressure in the downstream location decreases or interrupts flow.
420146
Koppel Paul E.
Norton Richard C.
Moffat & Co.
Stone & Webster Engineering Corporation
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