Low load coal bucket

Patent · Tue Feb 24 04:00:00 EST 1981

OSTI ID:6166241

Mccartney, M S

An improved fuel-air admission assembly incorporating a split coal bucket which permits a pulverized coal-fired furnace to be operated at low loads without the use of auxiliary fuel to provide stabilization. The split coal bucket comprises an upper and a lower coal nozzle pivotally mounted to the coal delivery pipe, the upper and lower coal nozzles being independently tiltable. When the furnace is operating at low loads, the primary air and pulverized coal stream discharging from the coal delivery pipe is split into a first and a second coal-air stream and independently directed into the furnace by tilting at least one of the nozzles away from the longitudinal axis of the coal delivery pipe, thereby establishing an ignition stabilizing pocket in the locally low pressure zone created between the spread apart coal-air streams.

• Assignee: Combustion Engineering Inc
• Patent Number(s): US 4252069
• OSTI ID: 6166241
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
014000 -- Coal
Lignite
& Peat-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200104* -- Fossil-Fueled Power Plants-- Components
AIR FLOW
CARBONACEOUS MATERIALS
COAL
DESIGN
ENERGY SOURCES
FLUID FLOW
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUEL CYCLE
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUELS
FURNACES
GAS FLOW
MATERIALS
NOZZLES
PIPES
POWER PLANTS
THERMAL POWER PLANTS