Solid handling valve

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863445

Williams, William R ^[1]

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1. Morgantown, WV

The present invention is directed to a solids handling valve for use in combination with lock hoppers utilized for conveying pulverized coal to a coal gasifier. The valve comprises a fluid-actuated flow control piston disposed within a housing and provided with a tapered primary seal having a recessed seat on the housing and a radially expandable fluid-actuated secondary seal. The valve seals are highly resistive to corrosion, erosion and abrasion by the solids, liquids, and gases associated with the gasification process so as to minimize valve failure.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4173327
• OSTI ID: 863445
• Country of Publication: United States
• Language: English

Related Subjects

solid
handling
valve
directed
solids
combination
lock
hoppers
utilized
conveying
pulverized
coal
gasifier
comprises
fluid-actuated
flow
control
piston
disposed
housing
provided
tapered
primary
seal
recessed
seat
radially
expandable
secondary
seals
highly
resistive
corrosion
erosion
abrasion
liquids
gases
associated
gasification
process
minimize
failure
valve comprises
coal gasifier
flow control
pulverized coal
gasification process
coal gas
secondary seal
handling valve
valve seal
radially expand
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