Reducing the necessary pressure drop through slide valves
A method for reducing pressure drop across a slide valve used to regulate flow of solids through a standpipe is described. The method comprises introducing a gas stream through a multiplicity of openings within an inlet means into the standpipe in a direction toward the slide valve from a position closely adjacent to the slide valve. The apparatus comprises: (a) a bin for containing a supply of particulate; (b) a valve positioned beneath the bin; (c) a first conduit connecting the bin with the valve, the conduit forming a standpipe; (d) a hollow sparger ring circumferentially extending around an inside surface of the first conduit between the bin and valve at a position immediately adjacent to the valve. The hollow ring having apertures for introducing a fluid into the first conduit in the direction of the valve to reduce the pressure drop across the valve.
- Assignee:
- Phillips Petroleum Co., Bartlesville, OK
- Patent Number(s):
- US 4706697
- OSTI ID:
- 5863105
- Resource Relation:
- Patent File Date: Filed date 26 Apr 1985
- Country of Publication:
- United States
- Language:
- English
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