Secondary combustion chamber emergency discharging chimney tail gas purification system

Abstract

The invention relates to a secondary combustion chamber emergency discharging chimney tail gas purification system. A secondary combustion chamber discharging chimney, a Venturi dust remover, a dilutealkali liquor tank, a circulation pump, a cyclone water removal dust remover, an induced draft fan and an exhaust barrel are included. The secondary combustion chamber discharging chimney communicates with the Venturi dust remover, the Venturi dust remover communicates with the cyclone water removal dust remover, the cyclone water removal dust remover communicates with the exhaust barrel, the induced draft fan is arranged between the cyclone water removal dust remover and the exhaust barrel, and the dilute alkali liquor tank communicates with the throat position of the Venturi dust remover through the circulation pump. The secondary combustion chamber emergency discharging chimney tail gas purification system is suitable for industry hazardous waste incineration system secondary combustion chamber emergency discharging chimney tail gas treatment, since the tail gas is discharged under the accident work condition, the application time of the system is short, the construction cost is low, and running is stable and reliable; and in the general background that smoke is not treated in the industry, a feasible smoke treatment environment protection measure is provided, gas exhausted bythe secondary combustion chamber emergency discharging chimney tail gas purification system is more environment-friendly, and pollution to the surrounding environment is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of industrial waste tail gas treatment, in particular to a second combustion chamber emergency exhaust chimney tail gas purification system. Background technique [0002] With the rapid growth of our country's economy, the growth of various hazardous wastes is also accelerating. The disposal of hazardous wastes is an important issue that our country is facing. At present, domestic hazardous waste incineration projects are springing up, and they are being constructed and put into operation in large quantities. . According to the requirements of domestic hazardous waste incineration standards, there are currently many projects that use rotary kilns as the main treatment method. After hazardous waste is incinerated in the rotary kiln, the flue gas needs to be fully incinerated in the environment of staying at 1100 ° C for 2 seconds in the secondary combustion chamber. After incineration Flue gas undergoes SNCR...

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Problems solved by technology

[0003] At present, the domestic environmental protection pressure is increasing. The emergency discharge of the chimney of the second combustion chamber is a safety measure. It is exhausted to the atmosphere, but the amount of flue gas is very large compared to the discharge capacity of the safety valve of the general storage tank, and it contains smoke, SO 2 , HCL and other pollutants have also caused great pollution to the surrounding environment, and this method is increasingly not accepted by environmental protection experts and surrounding residents

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