Burner for coal slurry

Patent · Tue Jul 29 00:00:00 EDT 1986

OSTI ID:5485534

Chadshay, R

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
• Resource Relation: Patent File Date: Filed date 30 Jul 1984
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
42 ENGINEERING
BURNERS
DESIGN
COAL
COMBUSTION
FUEL SLURRIES
FURNACES
AIR FLOW
COMBUSTION CONTROL
DIFFUSERS
FUEL INJECTION SYSTEMS
POSITIONING
SPACE DEPENDENCE
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CONTROL
DISPERSIONS
ENERGY SOURCES
FLUID FLOW
FOSSIL FUELS
FUEL SYSTEMS
FUELS
GAS FLOW
MATERIALS
MIXTURES
OXIDATION
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES
014000* - Coal
Lignite
& Peat- Combustion
421000 - Engineering- Combustion Systems