Pulverized coal fuel injector
This patent describes a pulverized coal injector for a coal combustor. It comprises a burner tube having a central axis, an upstream end, downstream end, and a primary burn zone adjacent to the downstream end, and further wherein the tube is capable of carrying a stream of a pulverized coal-air mixture to be burned; an acceleration means located in the tube for improving the uniformity of the coal-air mixture; a converging means connected to the downstream end of the tube for injecting the coal-air mixture into the primary burn zone of the combustor; the converging means including means for splitting the stream of the coal-air mixture into a plurality of separate streams; and further wherein the splitting means directs the separate streams to impinge upon each other upon discharge into the primary burn zone of the combustor.
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 5113771; A
- Application Number:
- PPN: US 7-744752
- OSTI ID:
- 5160640
- 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
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTORS
DISPERSIONS
ENERGY SOURCES
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FLUIDS
FOSSIL FUELS
FUEL INJECTION SYSTEMS
FUEL SYSTEMS
FUELS
GASES
MATERIALS
MIXTURES
OXIDATION
PULVERIZED FUELS
THERMOCHEMICAL PROCESSES