Method for cyclically utilizing pyrolysis combustible gas power generation waste heat to conduct biological drying aeration

Abstract

The invention provides a method for cyclically utilizing pyrolysis combustible gas power generation waste heat to conduct biological drying aeration. According to the method, dried waste in a biological drying bin is fed into a pyrolysis gasification furnace for pyrolysis gasification, combustible gas generated by pyrolysis gasification is conveyed to a power generator unit for power generation, and high temperature smoke is also generated; cooling water is input into a power generator unit cylinder sleeve and / or a first heat exchanger, the cooling water cools the power generator unit in the power generator unit cylinder sleeve, so that hot water is obtained, and after the cooling water conducts heat exchange with high-temperature smoke in the first heat exchanger, hot water is obtained; the hot water is conveyed into a floor heating module of the biological drying bin for heating and / or into a second heat exchanger, the hot water conducts heat exchange with gas for aeration in the second heat exchanger, after heated, the gas enters the biological drying bin for aeration, and after the hot water is cooled, the cooled water is input into the power generator unit cylinder sleeve and / or the first heat exchanger again. In this way, recycling of waste heat of the high temperature smoke and the cylinder sleeve cooling water is achieved, the recycled waste heat is utilized to achievedrying and raise aeration temperature, and therefore drying time is shortened.

Description

technical field [0001] The invention relates to the fields of biological drying, pyrolysis gasification and combustible gas power generation of garbage, and in particular to a method for recycling waste heat of pyrolysis combustible gas power generation for biological drying and aeration. Background technique [0002] The current domestic waste is mainly disposed of by pyrolysis and gasification, but the waste is not pre-treated before pyrolysis and gasification, and the moisture content of the waste is high and difficult to control, which will greatly affect the efficiency of pyrolysis and gasification and gas production stability and quality. Moreover, in the process of pyrolysis and gasification, excessive moisture content of waste will make it difficult to control the temperature of the process of pyrolysis and gasification, and a large amount of tar and pollutants will easily be produced. Even if there is a pre-treatment of garbage biological drying, most of the existi...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for recycling the waste heat of pyrolysis combustible gas for biological drying and aeration, so as to solve the problem that the waste heat of the power generation unit in the prior art is not fully utilized and the temperature of the gas source for aeration to the biological drying chamber is relatively high. low, long drying time

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