Discharging sand from a vessel at elevated pressure

Details Discharging sand from a vessel at elevated pressure Discharging sand from a vessel at elevated pressure

2007-02-20

2007-02-20

Reifsnyder, David A. (Department: 1723)

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

C210S788000, C210S806000, C210S198100, C210S205000, C210S206000, C210S416100, C210S512200, C209S726000, C209S729000

Reexamination Certificate

active

10479470

ABSTRACT:
Sand is discharged from a vessel at an elevated pressure and is delivered at a lower pressure. The sand is subjected to the following steps before delivery: I) dilution with a dilution fluid, ii) passage through at least one pressure reducing cyclone, the dilution being such that flashing is reduced, and iii) delivery as a slurry at the delivery pressure. This results in less wear of the components.

REFERENCES:
patent: 5853266 (1998-12-01), Parkinson et al.
patent: 6119870 (2000-09-01), Cymerman et al.
patent: 6315837 (2001-11-01), Barclay
patent: 2 200899 (1998-09-01), None
patent: 2 293 992 (1996-04-01), None
patent: 2 296 106 (1996-06-01), None
patent: WO 99 38617 (1999-08-01), None

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