High pressure rotary piston coal feeder for coal gasification applications
- Morgantown, WV
The subject development is directed to an apparatus for feeding pulverized coal into a coal gasifier operating at relatively high pressures and elevated temperatures. This apparatus is a rotary piston feeder which comprises a circular casing having a coal loading opening therein diametrically opposed from a coal discharge and contains a rotatable discoid rotor having a cylinder in which a reciprocateable piston is disposed. The reciprocation of the piston within the cylinder is provided by a stationary conjugate cam arrangement whereby the pulverized coal from a coal hopper at atmospheric pressure can be introduced into the cylinder cavity and then discharged therefrom into the high-pressure gasifier without the loss of high pressure gases from within the latter.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Number(s):
- US 4025317
- OSTI ID:
- 862835
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
rotary
piston
coal
feeder
gasification
applications
subject
directed
apparatus
feeding
pulverized
gasifier
operating
relatively
pressures
elevated
temperatures
comprises
circular
casing
loading
therein
diametrically
opposed
discharge
contains
rotatable
discoid
rotor
cylinder
reciprocateable
disposed
reciprocation
provided
stationary
conjugate
arrangement
whereby
hopper
atmospheric
introduced
cavity
discharged
therefrom
high-pressure
loss
gases
latter
coal feeder
rotary piston
high-pressure gas
diametrically opposed
coal feed
coal gasifier
pressure gas
pulverized coal
elevated temperatures
elevated temperature
coal gasification
atmospheric pressure
coal gas
pressure gasifier
piston feeder
piston coal
coal hopper
pressure gases
gasifier operating
high-pressure gasifier
feeding pulverized
rotatable disc
/48/202/222/414/