Burner assembly for coal fired furnaces

Patent · Tue Feb 20 04:00:00 EST 1990

OSTI ID:7018076

Collins, Jr, R L; Bryk, S A

This patent describes a burner assembly for the combustion of pulverized coal in furnaces and the like. It comprises: feeding means for delivering a pulverized coal funnel through a port in the wall of the furnace and directly into the interior thereof. The feeding means having a mouth extending through the port; means for providing a first flow of air to the interior of the furnace separate from the feeding means and the pulverized coal funnel prior to passage into the interior; means for supplying a separate, second flow of air through the feeding means and into the furnace separate from the first flow of air and the pulverized coal funnel prior to entrance into the furnace interior; and swirler means having a plurality of overlapping blades extending radially outwardly from the feeding means foreclosing direct axial passage of the majority of the first separate flow of air therethrough, and terminating a short distance from the port to provide a narrow axial space for the passage of a minor portion of the first separate flow of air. Also described is a method for supplying pulverized coal and air to furnaces and the like through a burner assembly resulting in increased combustion efficiency.

• Assignee: Control Systems Co., Stow, OH
• Patent Number(s): A; US 4902221
• Application Number: PPN: US 7-48794A
• OSTI ID: 7018076
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106 -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
BURNERS
CHEMICAL REACTIONS
COAL FINES
COMBUSTION
COMBUSTION CONTROL
CONTROL
DESIGN
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUEL-AIR RATIO
FURNACES
OXIDATION
THERMOCHEMICAL PROCESSES