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Integrated plant of circulating fluid bed type boiler for burnning garbage and purifying tail gas

A technology of circulating fluidized bed and waste incineration, which is applied in incinerators, combustion methods, combustion types, etc., can solve the problems of complex control parameters and large equipment area, and can meet environmental protection requirements, small area and smoke. Good air purification effect

Active Publication Date: 2006-07-05
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Because the traditional garbage tail gas purification device is composed of multiple parts, it has the disadvantages of large equipment footprint and complicated control parameters.

Method used

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  • Integrated plant of circulating fluid bed type boiler for burnning garbage and purifying tail gas

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Embodiment Construction

[0017] Referring to the accompanying drawings, the present invention includes a furnace body 3 of a circulating fluidized bed boiler, a cyclone separator 4, a cooling tower 7 and a bag filter 11. The bottom of the furnace body 3 is provided with a primary air inlet 1, the middle and lower part of the furnace body 3 is provided with a garbage / limestone powder remover inlet 2, and the upper side of the furnace body 3 is connected with the cyclone separator 4 through a flue. The lower part of the cyclone separator 4 is connected with the material returning mechanism 5 , and the bottom of the material returning mechanism 5 is connected with the bottom of the furnace body 3 . The top of the cyclone separator 4 is connected to the bottom of the cooling tower 7 through a flue. The cooling tower 7 has two sets of water spray nozzles 8 opposite to the flow of the flue gas. Dust collector 11 is connected. The iron fly ash inlet 9 is set on the vertical section of the crutch flue 6, and...

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Abstract

An integral device of garbage burning and waste gas purifying is prepared as setting primary air inlet at bottom of boiler and garbage / lime powder inlet at middle ¿C bottom of boiler, connecting boiler top to cyclone through flue pipe, connecting cyclone bottom to material feedback mechanism with its bottom being connected to boiler bottom, connecting cyclone top to cooling tower bottom through flue pipe and setting water spraying nozzle opposite to flowing direction of smoke, connecting cooling tower top to bag ¿C type collector through neck flue pipe with inlets of iron fly ash and activated carbon, setting purified gas outlet and filtering material layer on bag ¿C type collector.

Description

technical field [0001] The invention relates to a circulating fluidized bed waste incineration exhaust gas comprehensive purification device and method, and belongs to the technical field of waste incineration pollutant control. Background technique [0002] As a resource that has not been fully developed and utilized, garbage can not be ignored for its resource reuse advantages after incineration and the resulting secondary pollution. The flue gas emitted after garbage combustion contains a large amount of harmful gases, not only contains a large amount of primary particulate matter, precursors of secondary pollutants such as HCl, SO 2 , NOx, heavy metals, polycyclic aromatic hydrocarbons and other organic pollutants, and dioxins are also produced in large quantities during the incineration process. In addition, in the waste incineration post-treatment process, attention should also be paid to the control of inhalable particulate matter PM10 and PM2.5. It is imperative to ...

Claims

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Application Information

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IPC IPC(8): F23J15/00F23G5/30B01D53/04B01D53/78
Inventor 赵旭东姚强项光明韩毅
Owner TSINGHUA UNIV
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