A gasification reactor suitable for wide screening of raw materials

Abstract

The invention belongs to the technical field of solid fuel utilization, and discloses a gasification reactor suitable for wide screening raw materials, which includes a reactor body, and the reactor body includes a first reaction chamber, a second reaction chamber and a third reaction chamber communicated with each other. Reaction chamber; the second reaction chamber and the third reaction chamber are located below the first reaction chamber, and the third reaction chamber is sheathed on the periphery of the second reaction chamber; the side wall of the first reaction chamber is provided with a first air vent for introducing gas The oxidizing agent makes the small particle raw materials in the first reaction chamber fluidized and undergoes gasification reaction; the second vent is provided at the bottom of the second reaction chamber, which is used to pass in the oxidant to make the particle bed accumulated in the second reaction chamber undergo oxidation reaction ; The bottom of the third reaction chamber is provided with a third vent, which is used to feed gasification agent so that the particles in the third reaction chamber are fluidized and gasification reaction occurs. The reactor of the invention combines the characteristics of the fixed bed and the fluidized bed to realize high-efficiency gasification of wide-screened solid fuels, which is helpful for the popularization and application of gasification technology.

Description

technical field [0001] The invention belongs to the technical field of solid fuel utilization, and more specifically relates to a gasification reactor suitable for wide screening raw materials. Background technique [0002] As a very important energy conversion method, gasification plays a pivotal role in the utilization of solid fuels such as coal, biomass and garbage. The main product of gasification is hydrogen and carbon monoxide-based synthesis gas, which can be burned directly for power generation and heat supply, and can also be used to produce liquid fuels and chemicals through chemical synthesis. [0003] At present, the types of gasification devices mainly include fixed bed and fluidized bed. Atmospheric fixed bed technology mainly includes mixed generator, UGI water gas furnace (atmospheric fixed bed coal gasification equipment), water gas furnace, two-stage mixed generator, and two-stage water gas furnace, which are characterized by simple operation and low inve...

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Problems solved by technology

[0004] Aiming at the defects of the prior art, the object of the present invention is to provide a gasification reactor suitable for wide screening of raw materials. By setting up multi-stage reaction chambers, a suitable gasification atmosphere is provided for raw materials with different particle size ranges. To solve the problem that the existing gasification device has high requirements on the feed particle size, which leads to poor gasification effect of wide-screened solid fuel

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