Kitchen waste and household garbage power generation cooperative treatment technology

Abstract

The invention relates to the field of garbage disposal, in particular to a kitchen waste and household garbage power generation cooperative treatment technology. The kitchen waste and household garbage power generation cooperative treatment technology comprises the following steps: A, kitchen waste and household garbage are thrown into corresponding garage percolation devices; B, the household garbage is percolated in the garage percolation device of the household garbage for 3-7 days, and then is sent into an incineration device; C, the kitchen waste is subjected to mincing and desanding and then is sent into a methane generation device for fermentation, and methane and solid residues are obtained; D, the incineration device comprises a hopper and a methane inlet, percolation products in the step B and the solid residues obtained in the step C are mixed and then a mixture is sent into the hopper, and the methane obtained in the step C is supplied to the methane inlet; E, after the mixture in the step D is burnt in the incineration device, generated solid residues are discharged, generated flue gas is sent into a flue gas treatment device, and steam generated by incineration is used for power generation of power generation equipment; and F, the flue gas is subjected to denitration of fly ash and heavy metal separation treatment in the flue gas treatment device.

Description

technical field [0001] The invention relates to the field of garbage disposal, in particular to a process for co-processing kitchen waste and domestic garbage incineration and power generation. Background technique [0002] With the acceleration of economic development and urbanization, the constant of urban domestic waste is getting larger and larger, and the landfill disposal method exposes more and more drawbacks. At present, through the incineration method, it is a relatively recognized method to recycle the available energy in the garbage while disposing of the garbage. [0003] However, the following problems often exist in the process of waste incineration: 1. The water content of waste is relatively high. Even after dehydration treatment, its water content is still higher than that of ordinary coal-fired. It is difficult to use traditional coal-fired combustion furnaces. Make domestic waste incineration fully. 2. Due to the secondary air design of the traditional f...

AI Technical Summary

Problems solved by technology

[0003] However, the following problems often exist in the process of waste incineration: 1. The water content of the waste is relatively high. Even after dehydration treatment, its water content is still higher than that of ordinary coal. Make domestic waste incineration fully

2. The secondary air design of the traditional furnace, the flue gas circulation in the furnace is not strong enough, so that the combustion of domestic waste is not sufficient

3. The components of domestic waste and kitchen waste are quite different, so they cannot be treated together, and the effect of mixed treatment is poor

4. Various gases and solid metal pollutants will be produced after garbage incineration, and the treatment effect on various pollutants is poor

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