Stoker structure

Patent · Tue Nov 10 04:00:00 EST 1981

OSTI ID:5945355

Mros, F

A screw-conveyor or auger feed and associated leveling system are disclosed for underfeed stoker troughs receiving particulate, cominuted, or chunk material, such as ''green'' coal, by way of example, this for assuring a uniformly rising level of material relative to the trough. The stoker structure herein includes combustion beds which are air perforate and kept this way through periodically rising members such as tuyeres which shear or break up clinkerformation on such beds. A pneumatically-operated system may preferably be used to actuate such movable tuyeres relative to such combustion beds. Combustion air flows through the combustion beds upwardly but not over the trough; hot gasses rising rapidly from the combustion beds confine volatiles gently rising vertically from the cone within the trough for complete combustion, essentially eliminating smoke-production thereat.

• Assignee: IFI; EDB-82-026942
• Patent Number(s): US 4299177
• OSTI ID: 5945355
• 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
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTORS
CONVEYORS
DESIGN
ENERGY SOURCES
EQUIPMENT
FLUID FLOW
FLUIDIZED-BED COMBUSTORS
FLUIDS
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUELS
GASES
HAULAGE EQUIPMENT
MATERIALS
MATERIALS HANDLING EQUIPMENT
OXIDATION
STOKERS
THERMOCHEMICAL PROCESSES