Garbage fermenting system and method of garbage incineration power plant

Abstract

The invention discloses a garbage fermenting system and a garbage fermenting method of a garbage incineration power plant. The garbage fermenting system comprises a fermenting tank, a feeding system and a discharging system, wherein a top cover is arranged on the top of the fermenting tank; a partition board is arranged above supporting columns inside the fermenting tank; the partition board partitions an inner cavity of the fermenting tank into a fermentation chamber and a filtrate storage chamber; a liquid draining pipe is arranged at one end of the filtrate storage chamber; a filtrate purifying system is connected to the end part of the liquid draining pipe; a gas inlet pipe is arranged at the other end of the filtrate storage chamber; a blast blower and a temperature adjusting chamberare mounted on the gas inlet pipe; the feeding system comprises a material mixing tank and a screw feeder; a garbage inlet and a fermenting agent storage tank are arranged on the top of the material mixing tank; the discharging system is a discharging bin; a gas exhausting main pipe is mounted on the top of the fermenting tank; a deodorizing tower is mounted on the end part of a gas exhausting pipe. By adopting the garbage fermenting system and the garbage fermenting method, the fermentation temperature in the fermenting tank and the fermentation time can be controlled, environmental odor canbe quickly and effectively eliminated, generation and escape of the odor can be reduced and leachate produced in the garbage fermenting process can also be effectively treated.

Description

technical field [0001] The invention belongs to the technical field of garbage biochemical treatment, and in particular relates to a garbage fermentation system and a method for a garbage incineration power plant. Background technique [0002] With the development of the economy and the improvement of people's living standards, more and more municipal solid wastes have been produced, and waste incineration power plants have also emerged as the times require. Waste incineration power generation can effectively recycle, reduce, and harm urban domestic waste. It not only makes full use of the calorific value of waste, but also uniformly processes harmful components generated by combustion through the flue gas treatment system, reducing environmental impact. pollution. In the process of recycling, reducing, and harm reducing waste, it is necessary to centralize the waste. In this process, the waste needs to be concentrated in the waste stacking plant, and undergo solid-liquid s...

AI Technical Summary

Problems solved by technology

In the process of recycling, reducing, and harm reducing waste, it is necessary to centralize the waste. In this process, the waste needs to be concentrated in the waste stacking plant, and undergo solid-liquid separation, sorting, crushing, and fermentation. Then the garbage is transferred to the incinerator. In the process of waste-to-energy treatment, the fermentation process is a key process step of waste-to-energy. The quality of fermentation directly affects the calorific value generated after incineration. In the existing technology, The fermentation of garbage is usually carried out in a large-scale stacked fermentation tank, that is, after the garbage is crushed, the crushed garbage is directly put into the garbage fermentation tank for fermentation, and it is directly heated after 5 to 7 days of fermentation. This kind of fermentation device and The fermentation process is relatively simple. During the fermentation process, acid inhibition, poor fluidity, and uneven heat transfer medium are prone to occur, resulting in unsatisfactory fermentation effects of garbage. The calorific value generated after combustion is low. At the same time, the fermentation process There is a lot of leachate produced in the waste water, and there is no centralized treatment of the leachate, which seriously pollutes the air environment. In addition, during the fermentation process of garbage, it is easy to produce foul-smelling gas, which seriously affects the health of workers and air quality.

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