Household garbage gasification furnace with functions of regenerative high temperature air gasification and plasma smelting

Abstract

The invention discloses a household garbage gasification furnace with the functions of regenerative high temperature air gasification and plasma smelting. The gasification furnace comprises a plasma gasification reaction furnace and a regenerative heat exchange system, wherein gasification reaction is carried out in the plasma gasification reaction furnace; the regenerative heat exchange system is installed on a lower segment of the plasma gasification reaction furnace and comprises two regenerative chambers, regenerators, two synthesis gas passages and a four-way reversing valve; the two regenerative chambers are symmetrically arranged at the two sides outside the plasma gasification reaction furnace and are filled with the regenerators; the tops of the regenerative chambers are connected with synthesis gas outlets of the plasma gasification reaction furnace by the synthesis gas passages, and the bottoms of the regenerative chambers are connected with the four-way reversing valve by pipelines. The household garbage gasification furnace has the beneficial effects that the sensible heat of pyrolysis and gasification gas is recovered by heating gasification air by adopting synthesis gas produced by the plasma gasification reaction furnace to increase the energy utilization rate; the regenerative heat exchange system is adopted for regenerative heat exchange, thus increasing the household garbage conversion rate and the heat value of produced gas and reducing the power consumption of a plasma torch.

Description

technical field [0001] The invention relates to gasification furnace equipment for pyrolysis treatment of solid waste mainly including municipal domestic waste, in particular to a heat storage type high-temperature air gasification and plasma melting domestic waste gasification furnace. Background technique [0002] With the acceleration of my country's industrialization and urbanization process and the increasing material consumption, the output of municipal solid waste is increasing day by day, and the environmental problems brought about are becoming more and more serious. Compared with the conventional garbage treatment method, the gasification treatment technology of domestic waste has the advantages of high energy recovery utilization rate, small secondary pollution, small flue gas volume, and simple post-processing equipment. However, my country's municipal solid waste has the characteristics of low calorific value, high moisture, and large fluctuations in composition...

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Problems solved by technology

The gasification furnace of this scheme can complete conventional gasification, syngas reforming and waste slag melting in one gasification furnace, and use the heat value of the waste itself to perform conventional gasification first, but this structure cannot be better and more completely Organic components of household waste are utilized

However, using a plasma torch to directly gasify domestic garbage and molten ash requires a huge amount of power, and its power consumption rate can reach 30% to 40% of the power it produces. Due to the high power consumption, the operating cost is greatly increased, and this method Gasification of garbage, the temperature of the subsequent pyrolysis gasification gas is relatively high, and the waste of sensible heat of gas production is serious

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