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Integrated fluidized bed garbage efficient gasification combustion furnace

A fluidized bed gasification and fluidized bed technology, applied in incinerators, combustion methods, combustion types, etc., can solve the problems of excessive dioxins and the difficulty of flue gas to meet emission standards, and overcome high emissions and loose requirements. Effect

Pending Publication Date: 2020-03-24
SHANGHAI BOILER WORKS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

For example, incineration technology obtains heat energy while realizing waste reduction, but generates more dioxins, and it is difficult for flue gas to meet emission standards after special treatment

Method used

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  • Integrated fluidized bed garbage efficient gasification combustion furnace
  • Integrated fluidized bed garbage efficient gasification combustion furnace
  • Integrated fluidized bed garbage efficient gasification combustion furnace

Examples

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Comparison scheme
Effect test

Embodiment

[0037] A set of integrated high-efficiency fluidized bed garbage gasification combustion furnace with a daily processing capacity of 600 tons (water content 52%), fluidized bed gasification section 400, width D2 is 1500mm, depth D22 is 3000mm, height H2 is 7m, this section is Cuboid, laying refractory material on the outside, the thickness is about 200mm.

[0038] The thickness of the refractory heat insulation layer of the heat insulation furnace wall of the dry pyrolysis section 200 is about 200mm, and the angle δ between the inclined surface and the vertical surface is 65°. The width of the grate 300 is 3m, the length L is 5m, and the inclination angle α of the grate is 25°.

[0039] The combustible gas combustion section 100 has a depth D11 of 3000mm and a width D1 of 6000mm. It is equipped with an adiabatic furnace wall. The thickness of the fire-resistant and heat-insulating layer is about 200mm. It is equipped with 4 layers of 4-corner tangential air nozzles. The air no...

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Abstract

The invention provides an integrated fluidized bed garbage efficient gasification combustion furnace. A furnace body is coaxially provided with a fluidized bed gasification section, a drying pyrolysissection and a combustible gas combustion section from bottom to top. A deslagging port is formed in the bottom of the gasification section, two garbage feeding ports are symmetrically formed in the side face of the drying pyrolysis section, and a high-temperature smoke outlet is formed in the upper portion of the combustible gas combustion section. Garbage enters the drying pyrolysis section froma feeding port, the garbage is dried and pyrolyzed through circulating hot smoke and radiation heat of the combustible gas combustion section, pyrolyzed solids fall into the gasification section to be gasified, combustible gas generated through gasification and pyrolysis gas are mixed in the drying pyrolysis section, and then the mixture enters the combustible gas combustion section to be combusted at the high temperature. As pyrolysis and gasification are carried out under an anoxic condition, the generated combustible gas is rich in hydrogen, and the generation of dioxin precursors is avoided under a hydrogen-rich condition, so that the emission of dioxin is reduced from the source.

Description

technical field [0001] The invention relates to an integrated fluidized bed garbage high-efficiency gasification combustion furnace, which belongs to the technical field of solid waste treatment. Background technique [0002] my country is the country with the heaviest burden of garbage. Over the years, the total amount of disorderly piled garbage in the country has reached 16 billion tons, occupying 900 million square meters of land, seriously polluting the atmosphere and groundwater resources, and seriously hindering the rapid and harmonious development of the urban economy and the environment. In addition, my country is a country short of resources and energy. How to realize the utilization of urban waste as a resource and energy, while solving the outlet for urban waste, and developing a circular economy is an effective way to realize the transformation of economic development mode. [0003] In order to solve the serious problems mentioned above, many solutions have been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/027F23G5/04F23G5/30F23G5/44F23J1/06F23J15/06F22B1/18
CPCF23G5/0276F23G5/04F23G5/30F23G5/444F23J1/06F23J15/06F22B1/1807Y02E20/30
Inventor 池国镇倪建军陈子珍张翔李平张毓姝朱轩博
Owner SHANGHAI BOILER WORKS
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