Chlorine-containing waste gas incineration treatment system and treatment method

Abstract

The invention discloses a chlorine-containing waste gas incineration treatment system and method. The chlorine-containing waste gas incineration treatment system comprises an alkali washing device, a water washing device and a demisting device which are sequentially connected to pretreat chlorine-containing waste gas. The heat storage incinerator is provided with a combustion chamber and a plurality of heat storage chambers working alternately, and an air inlet of each heat storage chamber communicates with an outlet of the demisting device through a corresponding air inlet valve; hexsteel is arranged on the inner surfaces, in contact with the chlorine-containing waste gas, of the heat storage chamber and the combustion chamber, and the hexsteel is filled and covered with anti-corrosion castable; an air outlet of each heat storage chamber is communicated with the quenching device through a respective air outlet valve; and gas discharged from the gas outlet of the quenching device sequentially passes through the other alkali washing device and the activated carbon adsorption device and finally enters the discharging device. The system adopts the combination of alkali washing, water washing and independent demisting, so that the acid gas concentration and the water content in the waste gas can be effectively reduced, and the dew point corrosion of the waste gas is reduced; and a hexsteel and an anti-corrosion castable are arranged in the heat storage incinerator, so that corrosion can be effectively prevented.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a chlorine-containing waste gas incineration treatment system and treatment method. Background technique [0002] For the treatment of chlorine-containing waste gas, commonly used technologies include washing, activated carbon / carbon fiber adsorption and desorption, resin adsorption and desorption, catalytic combustion, regenerative combustion, etc. Since the components of chlorine-containing waste gas are relatively complex and have low recycling value, incineration is generally used . The existing treatment process for the incineration of chlorine-containing waste gas has the following problems: the equipment is easily corroded, and secondary pollutants such as hydrogen chloride and dioxin are produced. The main reason why the equipment in the prior art is easy to corrode is that the interaction between the hydrogen chloride produced by the incineration of chl...

AI Technical Summary

Problems solved by technology

The existing treatment process for the incineration of chlorine-containing waste gas has the following problems: the equipment is easy to corrode, and there will be secondary pollutants such as hydrogen chloride and dioxin

The main reason why the equipment in the prior art is easy to corrode is that the interaction between the hydrogen chloride produced by the incineration of chlorine-containing waste gas and the residual moisture in the waste gas is extremely corrosive, which will cause the inner wall of the regenerative incinerator to corrode

[0003] In some existing technologies, on the basis of direct incineration, alkali washing is performed on chlorine-containing waste gas before and after incineration to remove acid gases. However, this method cannot solve the problems of easy corrosion of regenerative incinerators and incomplete removal of secondary pollutants

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