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Integrated fixed bed garbage efficient gasification combustion furnace

A fixed-bed, integrated technology, used in incinerators, combustion methods, combustion types, etc., can solve the problem that the flue gas is difficult to meet the emission standards, and achieve the effect of loose and broad requirements

Pending Publication Date: 2020-03-24
SHANGHAI BOILER WORKS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the incineration technology obtains heat energy while reducing waste, but produces more dioxins (also known as dioxins, which are colorless, odorless, and highly toxic fat-soluble substances). Difficult to meet emission standards after treatment

Method used

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

Examples

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Effect test

Embodiment

[0039] A set of integrated fixed-bed garbage high-efficiency gasification combustion furnace with a daily processing capacity of 600 tons (water content 52%). The fixed-bed gasification section 400 has an inner diameter D2 of 4000mm and a height H2 of 5m. The outside of this section is a cube and the inside is a cylinder. , The refractory material is filled between the cube and the cylinder, and the thickness is 200mm.

[0040] 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 4m, the length L is 4.5m, and the inclination angle α of the grate is 25°.

[0041] The combustible gas combustion section 100 is a cube with an inner diameter of 6m. It is equipped with a heat-insulating furnace wall. The thickness of the refractory and heat-insulating layer is about 200 mm. There are 4 layers...

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Abstract

The invention provides an integrated fixed bed garbage efficient gasification combustion furnace. A furnace body is coaxially provided with a fixed bed gasification section, a drying pyrolysis sectionand a combustible gas combustion section from bottom to top. Garbage enters the drying pyrolysis section from a 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 inthe 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 anoxiccondition, 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. While recycling, harmlessness, reduction and stabilization treatment of the garbage are achieved, the problem that dioxin emission is high in the garbage incineration process is solved.

Description

technical field [0001] The invention relates to an integrated fixed-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 pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/027F23G5/04F23J1/06F23G5/44F23J15/06F22B1/18
CPCF23G5/0276F23G5/04F23J1/06F23G5/444F23J15/06F22B1/1807Y02E20/30
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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