Coal-feeding mechanism for a fluidized bed combustion chamber

Gall, Robert L

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Title: Coal-feeding mechanism for a fluidized bed combustion chamber

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Abstract

The present invention is directed to a fuel-feeding mechanism for a fluidized bed combustor. In accordance with the present invention a perforated conveyor belt is utilized in place of the fixed grid normally disposed at the lower end of the fluidized bed combustion zone. The conveyor belt is fed with fuel, e.g. coal, at one end thereof so that the air passing through the perforations dislodges the coal from the belt and feeds the coal into the fluidized zone in a substantially uniform manner.

Inventors:

Gall, Robert L ^[1]

Morgantown, WV

Issue Date:: 1981-01-01

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

OSTI Identifier:: 863896

Patent Number(s):: 4270469

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J8/002 - {with a moving instrument}

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
C10J2200/36 - Moving parts inside the gasification reactor not otherwise provided for
C10J2300/093 - Coal
C10J2300/0956 - Air or oxygen enriched air
C10J2300/0996 - Calcium-containing inorganic materials, e.g. lime
C10J3/482 - {Gasifiers with stationary fluidised bed}
C10J3/503 - {for gasifiers with stationary fluidised bed}
C10J3/74 - Construction of shells or jackets
C10J3/76 - Water jackets
C10J3/84 - with means for removing dust or tar from the gas

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR
F23C10/20 - Inlets for fluidisation air, e.g. grids
F23C10/22 - Fuel feeders specially adapted for fluidised bed combustion apparatus

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: coal-feeding; mechanism; fluidized; bed; combustion; chamber; directed; fuel-feeding; combustor; accordance; perforated; conveyor; belt; utilized; fixed; grid; normally; disposed; zone; fed; fuel; coal; air; passing; perforations; dislodges; feeds; substantially; uniform; manner; uniform manner; bed combustion; combustion zone; combustion chamber; fluidized bed; substantially uniform; conveyor belt; bed combustor; normally disposed; /110/

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                    Gall, Robert L. Coal-feeding mechanism for a fluidized bed combustion chamber.  United States: N. p., 1981. 
        Web.

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                    Gall, Robert L. Coal-feeding mechanism for a fluidized bed combustion chamber.  United States.

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                    Gall, Robert L. Thu .  
        "Coal-feeding mechanism for a fluidized bed combustion chamber".  United States.  https://www.osti.gov/servlets/purl/863896.

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@article{osti_863896,

  title        = {Coal-feeding mechanism for a fluidized bed combustion chamber},

  author       = {Gall, Robert L},

  abstractNote = {The present invention is directed to a fuel-feeding mechanism for a fluidized bed combustor. In accordance with the present invention a perforated conveyor belt is utilized in place of the fixed grid normally disposed at the lower end of the fluidized bed combustion zone. The conveyor belt is fed with fuel, e.g. coal, at one end thereof so that the air passing through the perforations dislodges the coal from the belt and feeds the coal into the fluidized zone in a substantially uniform manner.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1981},

  month        = {1}

}

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