Slurry burner for mixture of carbonaceous material and water

Patent · Tue Feb 24 04:00:00 EST 1987

OSTI ID:6694397

Nodd, D G; Walker, R J

A burner is described for atomizing and directing a carbonaceous material-water slurry into a combustion chamber comprising: a fuel delivery tube into which the carbonaceous material-water slurry is introduced and displaced therealong toward a first end thereof; an atomizing air tube coaxially positioned about the fuel delivery tube, the atomizing air tube coupled to an atomizing air source wherein the atomizing air source directs atomizing air under pressure into the atomizing air tube toward a first end thereof; a fixed generally cylindrical nozzle mounted to the combustion chamber and coupled to the respective first ends of the fuel delivery tube and the atomizing air tube. The nozzle has outer channels continuous with the atomizing air tube at the first end thereof through which the atomizing air is directed and an inner, aft center fuel channel is coupled to and continuous with the fuel delivery tube at the first end thereof. The nozzle further includes forward inner diverging fuel channels coupled to and continuous with the aft center fuel channel and forming relatively small acute angles therewith and through which the carbonaceous material-water slurry is directed toward the outer periphery of a forward end portion of the nozzle and exits therefrom.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4644878
• OSTI ID: 6694397
• 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
AIR FLOW
ATOMIZATION
BURNERS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION CHAMBERS
DESIGN
DISPERSIONS
ENERGY SOURCES
FLUID FLOW
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SLURRIES
FUEL SYSTEMS
FUELS
GAS FLOW
HYDROGEN COMPOUNDS
MATERIALS
MIXTURES
OPERATION
OXIDATION
OXYGEN COMPOUNDS
POSITIONING
PRESSURIZING
SLURRIES
SUSPENSIONS
THERMOCHEMICAL PROCESSES
WATER