Valve for controlling solids flow
Abstract
A fluidized solids control valve is disclosed that is particularly well adapted for use with a flow of coal or char that includes both large particles and fines. The particles may or may not be fluidized at various times during the operation. The valve includes a tubular body that terminates in a valve seat covered by a normally closed closure plate. The valve body at the seat and the closure plate is provided with aligned longitudinal slots that receive a pivotally supported key plate. The key plate is positionable by an operator in inserted, intermediate and retracted positions respecting the longitudinal slot in the valve body. The key plate normally closes the slot within the closure plate but is shaped and aligned obliquely to the longitudinal slot within the valve body to provide progressively increasing slot openings between the inserted and retracted positions. Transfer members are provided between the operator, key plate and closure plate to move the closure plate into an open position only when the key plate is retracted from the longitudinal slot within the valve body.
- Inventors:
-
- Fairlawn, NJ
- Issue Date:
- Research Org.:
- Lummus Co., New York (USA)
- OSTI Identifier:
- 863491
- Patent Number(s):
- 4184662
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B65 - CONVEYING B65D - CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16K - VALVES
- DOE Contract Number:
- EY-76-C-02-0003
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- valve; controlling; solids; flow; fluidized; control; disclosed; particularly; adapted; coal; char; particles; fines; various; times; operation; tubular; terminates; seat; covered; normally; closed; closure; plate; provided; aligned; longitudinal; slots; receive; pivotally; supported; key; positionable; operator; inserted; intermediate; retracted; positions; respecting; slot; closes; shaped; obliquely; provide; progressively; increasing; openings; transfer; move; position; progressively increasing; pivotally supported; valve seat; retracted position; normally closed; control valve; solids flow; fluidized solids; normally close; various time; controlling solids; /251/137/
Citation Formats
Feldman, David K. Valve for controlling solids flow. United States: N. p., 1980.
Web.
Feldman, David K. Valve for controlling solids flow. United States.
Feldman, David K. Tue .
"Valve for controlling solids flow". United States. https://www.osti.gov/servlets/purl/863491.
@article{osti_863491,
title = {Valve for controlling solids flow},
author = {Feldman, David K},
abstractNote = {A fluidized solids control valve is disclosed that is particularly well adapted for use with a flow of coal or char that includes both large particles and fines. The particles may or may not be fluidized at various times during the operation. The valve includes a tubular body that terminates in a valve seat covered by a normally closed closure plate. The valve body at the seat and the closure plate is provided with aligned longitudinal slots that receive a pivotally supported key plate. The key plate is positionable by an operator in inserted, intermediate and retracted positions respecting the longitudinal slot in the valve body. The key plate normally closes the slot within the closure plate but is shaped and aligned obliquely to the longitudinal slot within the valve body to provide progressively increasing slot openings between the inserted and retracted positions. Transfer members are provided between the operator, key plate and closure plate to move the closure plate into an open position only when the key plate is retracted from the longitudinal slot within the valve body.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}