Continuous pyrolysis gasification system and method

Abstract

The invention discloses a continuous pyrolysis gasification system and method. The system comprises a gasification furnace, a plasma chamber, a composite waste heat boiler, a synthesis gas purification device, a tail gas waste heat boiler, an internal combustion generator set, a synthesis gas booster fan, a gas holder, a smoke exhaust device, a steam turbine generator set and an electric boostingdevice. The method comprises the following steps that: materials are pyrolyzed and gasified in the gasification furnace; generated synthesis gas is further decomposed and reformed at high temperaturein the plasma chamber so as to eliminate macromolecular substances and large particles; the high-temperature synthesis gas is used for heating a gasification medium and producing steam through the composite waste heat boiler, thereby realizing heat energy recovery; the generated high-temperature gasification medium brings heat into the gasification furnace, and the generated steam drives the steamturbine generator set to generate electricity; the purified synthesis gas enters the internal combustion generator set to generate electricity; high-temperature internal combustion engine tail gas issubjected to heat exchange through the tail gas waste heat boiler; generated steam drives a steam turbine to generate electricity; and electric energy generated by the system is merged into a power grid after voltage regulation. The system is magnificent in operation and can increase the incineration utilization rate of waste.

Description

technical field [0001] The invention relates to the field of pyrolysis and gasification of municipal solid waste, hazardous waste and other wastes, in particular to a continuous pyrolysis gasification system and method. Background technique [0002] At present, the known incinerators for the incineration of household garbage, industrial hazardous waste and other hazardous waste generally use technological equipment such as horizontal rotary kilns, fluidized beds, circulating fluidized beds, and AB furnaces. However, in the process of disposal, there are defects such as incomplete pyrolysis and gasification of waste, insufficient reaction, unreliable system, and low energy utilization rate. For the incineration of industrial hazardous waste in rotary kilns, there is still slagging, which damages the refractory materials of the furnace body and affects Defects such as the service life of the furnace body. None of the existing incineration treatment processes can well meet the...

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Problems solved by technology

[0003] Based on the problems existing in the prior art, the purpose of the present invention is to provide a continuous pyrolysis gasification system and method, which can solve the problem that the existing waste incineration treatment process cannot well adapt to the requirements of industrialization, and it is easy to cause environmental pollution and energy waste And other issues

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