Combustion device for treating waste gas of waste incineration

Abstract

The invention belongs to the technical field of waste incineration and relates to a combustion device for treating waste gas of waste incineration. The combustion device comprises a first hollow shell, wherein a first gas inlet which is used for allowing the waste gas of the waste incineration to enter the first shell and a fuel inlet which is used for injecting fuel to combust and decompose dioxin and organic pollutants in the waste gas of the waste incineration completely are formed on the first shell; a first gas outlet for exhausting the treated waste gas of the waste incineration is formed on the first shell; an ash outlet is formed on the lower side of the first shell; and a gate valve is arranged at the ash outlet. The combustion temperature in the first shell is high and the firstgas outlet makes the waste gas of the waste incineration remain in the shell for a longer time, so the pollutants of dioxin and the like carried in the waste gas of the waste incinerate can be completely decomposed at a high temperature, pollution-free emission of the waste gas of the waste incinerate is realized, and the environment is protected.

Description

technical field [0001] The invention belongs to the technical field of garbage incineration, and in particular relates to a combustion device for treating waste gas from garbage incineration. Background technique [0002] With the rapid development of the economy and the rapid growth of the urban population, the environmental problems caused by municipal solid waste have become increasingly prominent and serious. There are currently two main methods for domestic waste disposal: one is landfill, but the cost of landfill is relatively high, and landfills are prone to produce stench, discharge methane, ammonia, sulfide and other pollutants, and waste seepage Environmental problems such as filtrate, especially surface water or groundwater pollution caused by landfill leachate are very serious, and the land cannot be reused for at least 50 years. In addition, garbage dumps are also a trinity pollution source of organic matter, heavy metals and pathogenic microorganisms, including...

AI Technical Summary

Problems solved by technology

There are currently two main methods for domestic waste disposal: one is landfill, but the cost of landfill is relatively high, and landfills are prone to produce stench, discharge methane, ammonia, sulfide and other pollutants, and waste seepage Environmental problems such as filtrate, especially surface water or groundwater pollution caused by landfill leachate are very serious, and the land cannot be reused for at least 50 years. In addition, garbage dumps are also a trinity pollution source of organic matter, heavy metals and pathogenic microorganisms, including many carcinogenic and teratogenic substances. And become a breeding ground for mosquitoes, flies and rodents, seriously endangering human health; the second is the incineration method, the process of garbage incineration is simple, reliable operation, fast processing speed and large processing capacity and capacity reduction, effectively inhibiting the garbage dump This is especially important for large and medium-sized cities where land resources are very scarce. At the same time, in the process of high-temperature incineration of garbage, a large number of pathogens carried by garbage are eliminated, which greatly improves the sanitary environment of the city. Therefore, garbage incineration is an important method. Current preferred waste disposal methods

[0003] However, since domestic waste in our country is mainly kitchen waste, and plastic, waste paper and other high calorific value waste is less, the calorific value of domestic waste in our country is low, and it is difficult to adapt to the incinerator with higher working temperature imported from abroad. Therefore, As a result, the incineration results of the imported incinerators are not ideal; and although there are many types of incinerators developed by our country, and some of them are suitable for incineration of garbage in our country, their incineration temperature is relatively low. For example, most incinerators can only Reach the incineration temperature of 600-800 ℃, because the waste gas generated by the waste combustion in this temperature range contains a large amount of dioxins, and the gas combustion is not complete, and the incineration flue gas contains a large amount of organic matter, so the damage to the atmospheric environment more serious pollution

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