Wet-process deacidification flue gas white smoke removing system applied to hazardous waste incineration and application method of wet-process deacidification flue gas white smoke removing system

Abstract

The invention provides a wet-process deacidification flue gas white smoke removing system applied to hazardous waste incineration and an application method of the wet-process deacidification flue gaswhite smoke removing system. The system can be used for effectively removing white smoke, can also protect equipment from corrosion, prolongs the service life and reduces energy consumption; the system comprises a washing tower and a steam heater; the steam heater is connected with a chimney; the system also comprises a smoke-smoke heat exchanger which communicates with flue gas; and the smoke-smoke heat exchanger is connected with the steam heater after being cyclically connected with the washing tower.

Description

technical field [0001] The invention relates to the field of purification and treatment of incineration flue gas, in particular to a hazardous waste incineration wet deacidification flue gas dewhitening system and a use method thereof. Background technique [0002] In recent years, the country has become more and more strict on environmental protection in order to control smog. Many garbage and hazardous waste incineration projects require that no white smoke can appear in the chimney. In the traditional hazardous waste incineration flue gas wet dewhitening process, steam is added after the scrubber The heater is used to solve the above problems, but it can only meet the white smoke removal effect in high temperature weather in summer, and in winter, because the temperature is too low, the smoke after passing through the steam heater is mixed with the outside air and then condenses, and the chimney will still condense. White smoke appears. In addition, the temperature of the...

AI Technical Summary

Problems solved by technology

[0002] In recent years, the country has become more and more strict on environmental protection in order to control smog. Many garbage and hazardous waste incineration projects require that no white smoke can appear in the chimney. In the traditional hazardous waste incineration flue gas wet dewhitening process, steam is added after the scrubber The heater is used to solve the above problems, but it can only meet the white smoke removal effect in high temperature weather in summer, and in winter, because the temperature is too low, the smoke after passing through the steam heater is mixed with the outside air and then condenses, and the chimney will still condense. White smoke appears. In addition, the temperature of the flue gas from the dust collector drops below the acid dew point after being washed by the scrubber, and then the low-temperature flue gas enters the steam heater. Since the flue gas is low-temperature and contains acidic gas, it is easy to corrode the steam The heater and subsequent equipment have a short service life, and the steam consumption is relatively large during the whitening process

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