Processing method and device for incinerating toxic waste liquid by smoke concentration and gasification

Abstract

The invention discloses a processing method for incinerating toxic waste liquid by smoke concentration and gasification. The processing method comprises the following steps of: firstly, preprocessing a high-calorific value waste organic solvent and low-calorific value toxic waste liquid in the toxic waste liquid; delivering the high-calorific value waste organic solvent in an incinerator for burning through a waste organic solvent burner to generate high-temperature flue gas, concentrating the low-calorific value toxic waste liquid in the toxic waste liquid with the generated high-temperatureflue gas to form steam and concentrated high-temperature low-calorific value toxic waste liquid; and conveying the concentrated high-temperature low-calorific value toxic waste liquid subjected to gasification into the incinerator through a gas burner and burning together with the high-calorific value waste organic solvent. In the processing method, the burning temperature of the incinerator can be controlled more accurately to inhibit the generation of NOx. In the process of processing the low-calorific value toxic waste liquid, the waste heat of the incinerator is reasonably utilized by stages, the splat-cooling effect on the exhausted high-temperature flue gas is achieved at the same time, and the regeneration of toxic substances is inhibited. The invention also discloses a processing device used for the processing method.

Description

technical field [0001] The invention relates to a treatment method and device for toxic waste liquid in industrial hazardous waste, in particular to a treatment method and device for toxic waste liquid incinerated by smoke concentration gasification. The high-temperature flue gas produced by the light oil burner used in the incinerator is used to concentrate, vaporize and gasify the low calorific value toxic waste liquid to form steam and gas, which are respectively sent to the incinerator for combustion treatment. Approach. Background technique [0002] Among the incineration treatment methods for toxic waste liquids currently used in domestic and foreign markets, waste organic solvents with high calorific value are generally incinerated in the incinerator with waste organic solvent burners, and incinerated as low calorific value toxic waste liquids. Treated supplementary fuel is utilized. For the low calorific value toxic waste liquid, it is sprayed into the incinerator ...

AI Technical Summary

Problems solved by technology

The above-mentioned incineration treatment method for toxic waste liquid with low calorific value must ensure a good atomization effect for toxic waste liquid with low calorific value in order to ensure the incineration effect, which requires a large amount of compressed air and therefore consumes a lot of power

In addition, since a large amount of cold air directly enters the incinerator, a large amount of fuel needs to be consumed to ensure the stability of the furnace temperature and the full combustion of the waste liquid, so there are problems such as large waste of resources and high operating costs.

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