Method and apparatus for burning pulverized solid fuel
This patent describes a process for burning pulverized solid fuel in the flame of a burner comprising the simultaneous steps of: supplying combustion air to the discharge end of the burner so as to produce a vortex that is sufficient to stabilize the burner flame in a region in front of the burner; delivering a pulverized solid fuel, formed of particles, to a discharge end of the burner through a plurality of separate conduits that are distributed around the combustion air vortex; passing combustion air around the solid fuel delivering conduits to establish an axial gas flow from the burner along the flame region; and discharging the pulverized solid fuel from the conduits in a direction as will inject the particles into the axial flow part of the flame region as well as into the vortex to establish a pulverized solid-fueled elongated flame with enhanced particle residence time.
- Assignee:
- Fuel Tech, Inc., Stamford, CT
- Patent Number(s):
- US 4776289
- OSTI ID:
- 6546965
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
014000* -- Coal
Lignite
& Peat-- Combustion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
BURNERS
CHEMICAL REACTIONS
COAL FINES
COMBUSTION
COMBUSTION CONTROL
COMBUSTORS
CONTROL
DESIGN
FLAMES
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
OXIDATION
THERMOCHEMICAL PROCESSES