Split-range household garbage drying pyrolysis gasification combustion power generation technology

Abstract

The invention provides a split-range household garbage drying pyrolysis gasification combustion power generation technology. The technology involves a dryer, a pyrolyzer, a gasifier, an air preheater,a combustion furnace, a steam turbine, a dust removal device and a denitration device. The garbage pretreatment dryer is used for reducing moisture in the ultrahigh heat value garbage; the dryer is connected to the pyrolyzer and is used for pyrolysis and gas production of the ultrahigh heat value garbage; the pyrolyzer is connected to the gasifier, semicoke and tar generated by pyrolysis are gasified in the gasifier to generate a large amount of crude gas, the gasifier is connected to the air preheater, the energy utilization rate is increased, the air preheater enters the combustion furnacethrough the pyrolyzer to be combusted, and steam is generated to push the steam turbine to generate power; tail gas passes through the dust removal device and the denitration device and then providesenergy for drying through the dryer, and then up-to-standard emission is achieved. The technology provided by the invention has the characteristics of good environmental benefits, good harmless effectand high practicability, and realizes energy recycling of garbage.

Description

technical field [0001] The patent of the present invention provides a split-program domestic waste drying pyrolysis gasification combustion power generation technology, which is especially suitable for the pyrolysis gasification of ultra-high calorific value waste after ultra-high pressure dry-wet separation and mechanical treatment. Background technique [0002] At present, landfill and combustion are the main technical means to deal with garbage in China. With the development of society and the acceleration of urban processes, people's material life is becoming more and more abundant, and the output of daily garbage is getting higher and higher. Environmental problems have become increasingly prominent. At present, the problem of low resource utilization of urban domestic waste in my country is also limited by land resources and ecological environment. Although the construction cost of landfill treatment is low, ranging from 150,000 yuan / ton to 400,000 yuan / ton, but Its pr...

AI Technical Summary

Problems solved by technology

The effect of energy saving and emission reduction is poor, and the process is complex and expensive

For the purification and upgrading process of raw gas produced by direct pyrolysis and gasification of domestic waste, there is no well-formed, reliable, and stable process technology and supporting equipment in China.

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