A deacidification treatment system for industrial waste cracking and incineration tail gas

Abstract

The invention discloses an industrial refuse cracking incineration tail gas deacidifying treatment system. The industrial refuse cracking incineration tail gas deacidifying treatment system comprises a gas overheat protector, a thermal-type gas mass-flow meter, a mixed gas flow adjusting valve, a bag type deduster, a front-end SO2 concentration sensor, a filtration flame arrestor, a SO2 catalytic oxidation reactor, a sulfuric acid aerosol generator, an iron powder contact polarization reaction kettle, an alkaline tower, a water vapor separator, a tail-end SO2 concentration sensor and an air exhaust fan. The system can perform overheat protection on the whole system according to the temperature of charged air of the industrial refuse cracking incineration tail gas, can monitor the SO2 removing efficiency of the whole system in real time, and creatively generates ferrous sulfate aerosol by adopting sulfuric acid aerosol and iron powder; the ferrous sulfate aerosol is attracted and separated under the effect of strong magnetic field so as to achieve the aim of removing SO2 efficiently, and meanwhile the separated ferrous sulfate can be collected and recycled as a byproduct.

Description

technical field [0001] The invention relates to an industrial garbage cracking and incineration tail gas deacidification treatment system, which belongs to the field of waste gas treatment in environmental protection. Background technique [0002] With the rapid advancement of the industrialization process, the amount of industrial waste has also increased sharply. At the same time, my country is a country with relatively tight land resources, especially in industrially developed North China, East China, and South China, where the population density is high and land resources are seriously in short supply. Therefore, landfill treatment is not suitable for these areas. At the same time, landfill will also cause serious pollution to soil and groundwater. At present, cracking and incineration is commonly used to treat industrial waste. At the same time, the heat source generated by incineration can also be used to generate electricity and generate heat, which is an effective w...

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Problems solved by technology

[0003] However, during the cracking and incineration of industrial waste, a large amount of toxic and harmful gases will be produced, such as acid gases, volatile organic compounds, dioxins, etc., and the acid tail gas produced is one of the main pollutants in the atmospheric environment.

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