Solid fuel combustion and gasification device of fluidized bed or jetting bed with flying ash multiple coal gasification device

Abstract

The invention discloses a combustion and gasification device of a fluidized bed or a jetting bed containing hydrocarbon solid fuel, which aims at solving the problems of large flying ash amount, high carbon content and low coal utilization rate of the solid fuel combustion and gasification device of the prior fluidized bed and jetting bed. The device comprises a feeding unit, a pressurized fluidized bed and jetting bed unit, a flying ash processing unit and a flying ash circulating unit. The device is distinctly characterized in that a flying ash processing multiple coal gasification device is added in the jetting bed device of the jetting bed containing solid fuel, therefore, the flying ash amount in coal gas and carbon content of flying ash are greatly reduced, the carbon utilization rate is increased, and the effective gas components in coal gas are increased. The device can be widely applied to the chemical industries, such as combustion or gas production, oil production, ammonium production and carbon production of coal, oil shale or other organic waste materials. The device is applicable to fluidized beds or jetting bed boilers (PFBC) and coal gasifiers, and can also be applicable to the field of fuel-steam combined cycle (IGCC).

Description

technical field [0001] The patent of the present invention relates to a gasification and combustion device for a solid fuel containing carbon and hydrogen (which can be simplified as coal), in particular to a solid fuel gas with a fluidized bed and a spouted bed of a multiple coal gasification device with fly ash chemical or combustion devices. Background technique [0002] The gasification reaction of coal takes place between carbon and hydrogen and a gasification agent carrying oxygen (O 2 、H 2 O.CO 2 ) between a partial or incomplete oxidation reaction. Coal gasification technology is the industrial basis for the development of processes such as coal-to-gas, coal-to-oil, coal-based chemicals, and combined cycle power generation systems. Coal gasification existing fixed bed (W-G furnace, UGI furnace, Lurgi furnace), fluidized bed (Winkler furnace, CFB or PCFB circulating fluidized bed furnace, Ender furnace, U-gas furnace, etc.), entrained bed (K-T furnace , Texco fur...

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Problems solved by technology

[0004] The purpose of the patent of the present invention is to provide a solution to the problem of low carbon utilization rate and low carbon utilization rate in the product gas that exists in the solid fuel gasification or combustion device of fluidized bed and spouted bed. Fly ash also improves the effective gas composition in the product gas for fluidized bed and spouted bed solid fuel gasification or combustion devices

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