Combustion system and method for a coal-fired furnace utilizing a louvered low load separator-nozzle assembly and a separate high load nozzle

Patent · Tue Sep 18 04:00:00 EDT 1984

OSTI ID:5997157

Vatsky, J; Schindler, E S

A combustion system and method for a coal-fired furnace in which a separator-nozzle assembly divides a coal-air mixture into a first stream containing most of the coal and a second stream containing a much smaller quantity of coal. Another nozzle is provided which receives another mixture of coal and air and discharges same in a combustion supporting relation to said streams. At start up and low loads, the separator-nozzle assembly discharges a majority of the coal and air in a combustion supporting relationship and the other nozzle discharges a relatively low quantity of coal and air. At high load conditions, the other nozzle discharges a majority of the coal and air while the coal and air discharging from the separator-nozzle assembly is kept at relatively low values. A splitter is provided for receiving a coal-air mixture from a mill and splitting it into two separate mixtures.

• Assignee: Foster Wheeler Energy Corp.
• Patent Number(s): US 4471703
• OSTI ID: 5997157
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000 -- Coal
Lignite
& Peat-- Combustion
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION CHAMBERS
COMBUSTION CONTROL
CONTROL
DESIGN
ENERGY SOURCES
FLUID FLOW
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
FUELS
FURNACES
MATERIALS
NOZZLES
OXIDATION
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES