Apparatus and method for pumping hot, erosive slurry of coal solids in coal derived, water immiscible liquid

Patent · Tue Mar 29 04:00:00 EST 1983

OSTI ID:864526

Ackerman, Carl D.

An apparatus for and method of pumping hot, erosive slurry of coal solids in a coal derived, water immiscible liquid to higher pressure involves the use of a motive fluid which is miscible with the liquid of the slurry. The apparatus includes a pump 12, a remote check valve 14 and a chamber 16 between and in fluid communication with the pump 12 and check valve 14 through conduits 18,20. Pump 12 exerts pressure on the motive fluid and thereby on the slurry through a concentration gradient of coal solids within chamber 16 to alternately discharge slurry under pressure from the outlet port of check valve 14 and draw slurry in through the inlet port of check valve 14.

• Research Organization: Pittsburgh & Midway Coal Mining Co., Englewood, CO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-78OR03055
• Assignee: Pittsburgh & Midway Coal Mining Co. (Englewood, CO)
• Patent Number(s): 4,378,183
• Application Number: 06/188,506
• OSTI ID: 864526
• Country of Publication: United States
• Language: English

Related Subjects

/406/417/
12
14
16
18
20
alternately
apparatus
chamber
check
check valve
coal
coal derived
coal solids
communication
concentration
concentration gradient
conduits
derived
discharge
draw
erosive
erosive slurry
exerts
fluid
fluid communication
gradient
hot
immiscible
immiscible liquid
inlet
involves
liquid
method
miscible
motive
motive fluid
outlet
pressure
pump
pumping
pumping hot
remote
slurry
solids
valve
water
water immiscible