Fly ash fluidized bed combustion decarburizing device

A technology for fly ash and fluidized bed, which is applied in the field of fly ash fluidized bed combustion decarburization device, can solve the problems of insufficient scope of action, unreasonable structure, etc., and achieve the effects of increasing temperature, improving utilization rate, and effective combustion

Pending Publication Date: 2020-02-07
JIANGSU XINFANGYUAN ELECTRIC EQUIP MFG
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Problems solved by technology

[0005] The invention provides a fly ash fluidized bed combustion decarburization device, which has the advantages of simple structure, wide range of action, and further decarburization of fly ash with carbon content at all levels, and solves the above-mentioned insufficient range of action. ill-structured problem

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  • Fly ash fluidized bed combustion decarburizing device
  • Fly ash fluidized bed combustion decarburizing device
  • Fly ash fluidized bed combustion decarburizing device

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] see Figure 1-6 , a fly ash fluidized bed combustion decarburization device, comprising a fly ash silo 1, a blower 2, an electric heater 3, an air separator 4, a screw feeder 5, a furnace 6, an ash cooler 7, Cyclone separator 8, material return valve 9, oxygen-enriched ignition and stable combustion device 10, air heat exchanger 11, dust collector 12, induced draft fan 13 and chimney 14, the middle part of the furnace 6 connected to the ash cooler 7 is ...

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Abstract

The invention relates to the technical field of fly ash decarburization and discloses a fly ash fluidized bed combustion decarburizing device comprising a fly ash material bin, an air blower, an electric heating device, an air powder concentrator, a spiral feeding machine, a hearth, an ash cooler, a cyclone separator, a material return valve, an air heat exchanger, a dust remover, an induced draftfan and a chimney. According to the differences in the aspects of specific gravity and particle size between carbon not burned out and burned-out carbon in the fly ash, the fly ash is carried by hotair to enter an air powder concentrator to be screened, the large-particle and high-carbon-content fly ash falls into the bottom of the air powder concentrator to undergo a next procedure, so that only a part of fly ash needs to be re-combusted, and the work efficiency of reducing the carbon content of the fly ash is improved; and meanwhile, the carbon content in the fly ash combusted in the hearth is increased, the fly ash in the hearth can be stably combusted to emit a large amount of heat, and the utilization ratio of the fly ash is improved.

Description

technical field [0001] The invention relates to the technical field of fly ash decarbonization, in particular to a fly ash fluidized bed combustion decarburization device. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. With the development of the power industry, the discharge of fly ash from coal-fired power plants It is imminent to increase the resource utilization of fly ash, but the carbon content in fly ash seriously affects its comprehensive utilization, so it is necessary to further decarbonize fly ash and reduce the proportion of carbon in fly ash. [0003] According to the fly ash fluidized bed combustion decarbonization device proposed in Patent No. 2011103276556, the carbon content of fly ash is reduced by reburning and cooling the fly ash with a carbon content greater than 12%, but this technology There are following deficiencies: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C10/10F23C10/18B07B7/083
CPCB07B7/083F23C10/10F23C10/18
Inventor 杨惠晨卢啸风杨朋中王迪亢银虎王泉海李建波
Owner JIANGSU XINFANGYUAN ELECTRIC EQUIP MFG
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