Burner for coal slurry
A burner is described for supplying coal in a liquid slurry and combustion air to a furnace through an opening in the wall of the furnace, including: a. throat means mountable in the opening in the furnace wall for defining a passageway opening into the furnace; b. a fuel supply gun disposed coaxially within the throat means along longitudinal axis for injecting the coal-liquid slurry into the furnace; c. first conduit means disposed coaxially about the fuel supply gun in spaced relationship with and between the fuel supply gun and the throat means, the first conduit means defining therein a primary air flow passage surrounding the fuel supply gun and opening into the furnace for directing a stream of primary air into the furnace; d. second conduit means disposed coaxially about the first conduit means in spaced relationship with and between the first conduit means and the throat means, the second conduit means defining an annular secondary air flow passage between the first and second conduit means openings into the furnace for directing a stream of secondary air into the furnace and defining an annular tertiary air flow passage between the throat means and the second conduit means opening into the furnace for directing a stream of tertiary air into the furnace; e. a burner housing mounted to the throat means and extending outwardly therefrom away from the furnace along a longitudinal axis coaxially about the second conduit means in spaced relationship therewith, the burner housing having inlet means for supplying air selectively and independently to the primary air flow passage, the secondary air flow passage, and the tertiary air flow passage.
- Assignee:
- Combustion Engineering, Inc., Windsor, CT
- Patent Number(s):
- US 4602571
- OSTI ID:
- 5485534
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
014000* -- Coal
Lignite
& Peat-- Combustion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
AIR FLOW
BURNERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION CONTROL
CONTROL
DESIGN
DIFFUSERS
DISPERSIONS
ENERGY SOURCES
FLUID FLOW
FOSSIL FUELS
FUEL INJECTION SYSTEMS
FUEL SLURRIES
FUEL SYSTEMS
FUELS
FURNACES
GAS FLOW
MATERIALS
MIXTURES
OXIDATION
POSITIONING
SLURRIES
SPACE DEPENDENCE
SUSPENSIONS
THERMOCHEMICAL PROCESSES