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Title: Solid handling valve

Abstract

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.

Inventors:
 [1]
  1. Morgantown, WV
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
OSTI Identifier:
863445
Patent Number(s):
US 4173327
Assignee:
United States of America as represented by United States (Washington, DC)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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; /251/

Citation Formats

Williams, William R. Solid handling valve. United States: N. p., 1979. Web.
Williams, William R. Solid handling valve. United States.
Williams, William R. Mon . "Solid handling valve". United States. https://www.osti.gov/servlets/purl/863445.
@article{osti_863445,
title = {Solid handling valve},
author = {Williams, William R},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/863445}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

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