Straw gasification furnace

Abstract

A double-liner and double-filtration design scheme of a straw gasification furnace is designed in the invention. The straw gasification furnace comprises a furnace inner liner, a furnace lid, an output tube, a gas discharge tube and a cooking stove, wherein a space between the furnace lid and the body of the furnace is sealed, the cooking stove is communicated with the inner liner, a furnace outer liner communicated with the gas discharge tube is arranged outside the furnace inner liner, the furnace inner liner forms a fuel chamber, a circulation chamber is formed between the furnace inner liner and the furnace outer liner, the furnace outer liner is communicated with the output tube and the gas discharge tube, and the connection of the furnace outer liner and the furnace inner liner is provided with crushed straws or a straw furnace ash layer. A heat insulation effect can be reached in the fuel combustion process, and a gas generated in the combustion can circulate in the two liners in a high temperature manner to make a tar high-temperature dissolving process return to the furnace bottom and the tar combine with the combusted furnace ash, so the furnace ash is diluted, there is no dust pollution in ash discharge, and simultaneously the discharged furnace ash can be reused, thereby a tar filtration effect is reached, and a recycle environment protection effect is also reached.

Description

field of invention [0001] The invention relates to a biomass gasification furnace, in particular to a straw fuel gasification furnace. Background technique [0002] Ordinary straw gasification furnaces burn in the fuel input barrel to produce a large amount of combustible gases (CO, H 2 、CH 4 etc.), the combustible gas contains tar, soot, and water vapor. When the design and assembly pipeline has an upward and flat bend, there is no place for the tar during the combustion process to be discharged; some have designed a purification structure, but the design is simple, If the effect is not achieved, the pipeline will be blocked at last, and the gas cannot reach the stove through the pipeline, and finally it cannot be used; some design parts have achieved a certain effect, but the structure is complicated and the cost is high, so it is not suitable for promotion. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a s...

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Problems solved by technology

[0002] Ordinary straw gasification furnace burns in the fuel input barrel to produce a large amount of combustible gas (CO, H 2 、CH 4 etc.), the combustible gas contains tar, soot, and water vapor. When the design and assembly pipeline has an upward and flat bend, there is no place for the tar during the combustion process to be discharged; some have designed a purification structure, but the design is simple, If the effect is not achieved, the pipeline will be blocked in the end, and the gas cannot reach the stove through the pipeline, and finally it cannot be used; some design parts have achieved a certain effect, but the structure is complicated and the cost is high, so it is not suitable for promotion

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