A gas cycle waste incinerator

Abstract

The invention discloses waste combustion equipment capable of achieving efficient gas circulation. Household waste is put into a furnace cavity of a combustion furnace from the top, and air is supplied into the furnace cavity from the bottom, so that the waste is combusted upwards from the bottom; and circulating gas at the top of the furnace cavity returns to the bottom of the furnace cavity for combustion supporting after moisture in the circulating gas is removed, and final tail gas generated during waste combustion is exhausted after being sufficiently combusted on the lower portion of the furnace cavity, so that the temperature in the furnace cavity is decreased gradually from bottom to top. Through the optically-designed waste combustion equipment capable of achieving efficient gas circulation, an annular cooling cavity arranged outside a furnace body can effectively cool the lower portion of the furnace body; meanwhile, in one aspect, air enters the furnace cavity after being preheated when flowing through the periphery of the upper portion of the furnace body, and thus the temperature in the furnace cavity is guaranteed; in another aspect, the tail gas is exhausted after being cooled through a cooling cavity, so that subsequent tail gas treatment is facilitated; and in another aspect, inlet circulating gas is preheated through outlet circulating gas, so that the heat utilization rate is greatly increased, the treatment temperature in the furnace cavity is guaranteed, high-temperature gas is effectively cooled before being exhausted, and the combustion efficiency in the furnace cavity is effectively improved.

Description

technical field [0001] The invention relates to the technical field of garbage treatment, in particular to a gas cycle garbage burning equipment. Background technique [0002] In recent years, with the improvement of people's living standards, the generation of municipal solid waste has increased rapidly, and the stock of waste accumulation over the years has been huge. It is usually disposed of by landfill, causing waste to erode a large amount of land. The incineration method can maximize the effective treatment of domestic waste and occupy the least land resources. However, if the incineration tail gas is discharged directly without treatment, it will cause serious air pollution. In the existing waste treatment technology, pyrolysis gasification is the main method. However, due to the poor air permeability of waste in the furnace, the combustible gas generated by high-temperature pyrolysis of waste escapes slowly from the waste heap. Therefore, how to clean up domestic ...

AI Technical Summary

Problems solved by technology

It is usually disposed of in landfill, causing waste to erode a large amount of land

The incineration method can maximize the effective treatment of domestic waste and occupy the least land resources. However, if the incineration tail gas is discharged directly without treatment, it will cause serious air pollution.

In the existing waste treatment technology, pyrolysis gasification is the main method, but due to the poor air permeability of the waste in the furnace, the combustible gas produced by high-temperature pyrolysis of waste escapes slowly from the waste heap.

Images