Domestic rubbish disposal system and method based on pyrolysis gasifier and tunnel brickkiln

Abstract

The invention relates to a domestic rubbish disposal system based on a pyrolysis gasifier and a tunnel brickkiln. The domestic rubbish disposal system comprises a feeding and drying device, the pyrolysis gasifier, a brick making system and the tunnel kiln. The heat tunnel kiln comprises a preheating segment, a combustion segment and a cooling segment. A first exhaust opening of the preheating segment communicates with a gas inlet of the feeding and drying device. A gas outlet of the feeding and drying device communicates with a first gas inlet of the combustion segment. A second gas outlet ofthe preheating segment communicates with a gas inlet of the pyrolysis gasifier. An exhaust opening of the pyrolysis gasifier communicates with a second gas inlet of the combustion segment. The temperature of the combustion segment is controlled to be 1,000 DEG C, and an air supply pipeline is further connected to a connecting pipeline between the combustion segment and the pyrolysis gasifier. According to the domestic rubbish disposal system and method based on the pyrolysis gasifier and the tunnel brickkiln, dioxin generated by rubbish combustion can be removed thoroughly, generated ash can be cyclically utilized, and the harmless conversion rate is high.

Description

technical field [0001] The invention relates to the field of domestic waste treatment, in particular to a domestic waste treatment system and method based on a pyrolysis gasifier and a tunnel brick kiln. Background technique [0002] Nowadays, the amount of urban domestic waste is increasing day by day. How to effectively dispose of these domestic wastes has become a top priority. The more common methods of disposal include landfill and incineration. However, the landfill treatment occupies a large area, and the seepage produced by improper disposal not only affects the soil, Groundwater causes serious pollution, and the odor produced by its fermentation will also pollute the air; although the use of incineration reduces the occupied area, it will also release a large amount of foul smell and even poisonous gas during the incineration process. There is also a large amount of dust and fine particles, which will also cause damage to the environment. [0003] At present, anoth...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, the amount of urban domestic waste is increasing day by day. How to effectively dispose of these domestic wastes has become a top priority. The more common methods of disposal include landfill and incineration. However, the landfill treatment occupies a large area, and the seepage produced by improper disposal not only affects the soil, Groundwater causes serious pollution, and the odor produced by its fermentation will also pollute the air; although the use of incineration reduces the occupied area, it will also release a large amount of foul smell and even poisonous gas during the incineration process. There are also a lot of dust and fine particles, which will also cause damage to the environment.

[0003] At present, another treatment method is pyrolysis gasification, which mainly uses pyrolysis gasification furnace to pyrolysis gasify combustible domestic waste. Compared with landfill and incineration, pyrolysis gasification has high harmless conversion rate and secondary The advantages of low pollution, but pyrolysis and gasification also have problems such as relatively complicated procedures, incomplete treatment of dioxin and other gases, and the inability to effectively use the ash produced.

Images