Solid waste gasifying system and solid waste gasifying method

Abstract

The invention discloses a solid waste gasifying system and a solid waste gasifying method. Currently, solid wastes are disposed mainly by incineration so as to cause secondary environmental pollutioneasily. According to the solid waste gasifying system, an air distribution mechanism is arranged at the bottom part of a furnace body; a primary air inlet of the air distribution mechanism is communicated with a gasifying fan by a one-way mixer, and a secondary air inlet of the air distribution mechanism is communicated with an inner cavity of the furnace body by a ring-shaped air duct, and is also communicated with an air outlet of the one-way mixer; a mixed steam inlet of the one-way mixer is communicated with a high-temperature steam outlet; the inner part of the furnace body is divided into an upper empty layer, a drying cavity, a dry distillation cavity, a lower empty layer, a reducing cavity, an oxidizing cavity and an ash slag cavity; dry steam spraying nozzles communicated with a high-temperature steam inlet are distributed in the drying cavity; dry distillation steam spraying nozzles communicated with the high-temperature steam inlet are distributed in the dry distillation cavity; high-temperature steam coils are distributed in the drying cavity and the dry distillation cavity and are communicated with the high-temperature steam inlet and the high-temperature steam outlet;and a dry distillation gas outlet is formed in the upper empty layer and a reducing gas outlet is formed in the lower empty layer. The solid waste gasifying system and the solid waste gasifying method disclosed by the invention have the advantages that the solid waste can be continuously transformed into combustible gas and cured furnace slag for high-temperature sintering, so that the harmless purpose is achieved.

Description

technical field [0001] The invention relates to a solid waste gasification system and a gasification method thereof, in particular to a solid waste gasification system and a gasification method based on enhanced reaction of high-temperature superheated steam. Background technique [0002] Solid waste, referred to as solid waste, refers to the solid and semi-solid waste produced by human beings in production, consumption, life and other activities. In layman's terms, it is "garbage", mainly including solid particles, garbage, slag, sludge , discarded products, damaged containers, defective products, animal carcasses, spoiled food, human and animal feces, etc. In some countries, high-concentration liquids such as waste acid, waste alkali, waste oil, and waste organic solvents are also classified as solid waste. [0003] Usually, according to the source of solid waste, it can be divided into urban domestic solid waste, industrial solid waste and agricultural waste; according t...

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Problems solved by technology

[0016] The purpose of the present invention is to provide a solid waste gasification system based on high-temperature superheated steam enhanced reaction and its Gasification method

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