Plasma integrated device for melting flying ash and purifying synthesis gas

Abstract

The invention discloses a plasma integrated device for melting flying ash and purifying synthesis gas. The device comprises a synthesis gas purification furnace body, wherein the upper wall surface ofthe synthesis gas purification furnace body is provided with a multi-nozzle cyclone burner, plasma generators are arranged on the lower wall surface of the synthesis gas purification furnace body atintervals, a deflector baffle separator is arranged in the synthesis gas purification furnace body and is below the plasma generators, the center of the deflector baffle separator is connected with aheat conduction base, a built-in tar catalysis bed is arranged above the heat conduction base, and the bottom of the synthesis gas purification furnace body is provided with a slag outlet. The deviceis applicable to the technical field of purification of synthesis gas generated in thermal pyrolysis and gasification of solid organic fuels such as rubbish and biomass. The device can melt flying ashin the synthesis gas, and can catalyze and split tar in the flying ash melting, thereby thoroughly purifying synthesis gas and laying a foundation for diversified utilization modes in following steps.

Description

Technical field [0001] The invention belongs to the technical field of purification of synthesis gas after solid organic fuel gasification, and specifically relates to an integrated device for plasma fly ash melting and synthesis gas purification. Background technique [0002] With the rapid development of the national economy, the amount of organic solid waste, led by municipal solid waste, has increased sharply, and the problem of disposal is urgent. [0003] At present, waste disposal in my country mainly adopts landfill method, composting method and incineration method. Landfills are prone to produce methane-rich landfill gas, which can cause explosions and produce a large amount of landfill leachate, which contains heavy metals, toxic and harmful organic chemical pollutants, and a large number of viral pathogens. In composting method, the waste classification is not fine, resulting in low quality fertilizer and difficult to sell. When the incineration method disposes of muni...

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Problems solved by technology

[0007] However, the use of plasma to melt fly ash usually consumes a lot of electric energy, and a lot of heat is wasted during melting and cannot be used effectively

And because the fly ash in the waste gasification synthesis gas exists in a state of dusty gas, if the whole synthesis gas is heated to the melting temperature, it will consume a lot of energy

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