Flue gas high-temperature combustion treatment chamber

Abstract

The invention discloses a flue gas high-temperature combustion treatment chamber, and relates to the technical field of garbage combustion treatment, the flue gas high-temperature combustion treatment chamber comprises a treatment box body, the top of the treatment box body is provided with a flue gas inlet and a cooling port, the upper part of the treatment box body is provided with a drying exchange cavity, and the lower part of the treatment box body is provided with a first combustion cavity; wherein a plurality of circulation pipelines vertically penetrate through the drying exchange cavity, a through opening is formed in the right end of the drying exchange cavity, the left end of the drying exchange cavity communicates with a cooling opening, and the cooling opening is connected with a cooling device; a plurality of ceramic heat storage layers and a plurality of refractory brick heat storage layers are vertically arranged in the first combustion cavity at intervals, and the ceramic heat storage layers and the refractory brick heat storage layers are sequentially and alternately arranged in the first combustion cavity from left to right. The device has the advantages that combustion is sufficient, the combustion process is safe and reliable, the manufacturing cost is low, the content of dioxin is effectively reduced, and reverse generation of dioxin is prevented.

Description

technical field [0001] The invention relates to the technical field of waste combustion treatment, in particular to a flue gas high-temperature combustion treatment chamber. Background technique [0002] Municipal solid waste is an accompanying product of human activities. With the increase of urban population and the improvement of urban living standards, the output of municipal solid waste is increasing day by day. The increasing amount of municipal solid waste is seriously polluting the living environment of human beings. How to realize the "three" treatment of harmless, volume reduction and resource utilization of municipal solid waste has become the focus of attention all over the world. Among the common waste disposal methods, waste incineration has become the mainstream of municipal solid waste treatment due to its advantages of complete harmlessness, deep volume reduction and possible resource utilization. However, waste incineration is prone to secondary pollutio...

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Problems solved by technology

However, waste incineration is prone to secondary pollution, especially dioxin-like substances will be generated in the flue gas produced by waste incineration. Dioxin has no use and is difficult to degrade in the natural environment. More importantly, its toxicity It is a colorless, odorless, and highly toxic fat-soluble substance. Therefore, it is necessary to carry out secondary complete combustion treatment on the flue gas. In the existing technology, there will be many problems in the secondary treatment process: the garbage often contains moisture, As a result, the flue gas produced by incineration contains more water vapor and high humidity, which affects the subsequent complete combustion effect; the combustion chamber uses a ceramic heating body for heat exchange, and the ceramic heating body can store extremely high heat, so that through its internal preheating The flue gas in the hole reaches its own ignition point and burns, but in the actual processing process, the cost of using a ceramic heating body is too high, and because the ceramic heating body itself has narrow channels, although the flue gas can fully contact with it, so that The combustion is more complete, but it also leads to the slow flow of flue gas in the combustion chamber, which is very easy to reduce the combustion efficiency and combustion effect due to the excessive pressure difference between various places, and more seriously, it will cause the combustion chamber to explode and cause safety accidents; more importantly, Since dioxins will be de novo synthesized at low temperature, macromolecular carbon, hydrogen, oxygen molecules and organic chlorine in the fly ash matrix will form dioxins under low temperature conditions (250-500°C). Reliable cooling of flue gas after combustion

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