Dry tail gas treatment system

Abstract

The invention discloses a dry tail gas treatment system which comprises a fan, a pipeline and a chimney, wherein one end of the fan is connected with a tail gas exhaust port of drying equipment, and the other end of the fan is communicated with the chimney through the pipeline; the chimney comprises a chimney pipe capable of adsorbing electric ions, and the chimney pipe is provided with a connecting port communicated with the pipeline. An atomizing nozzle capable of spraying electrified ionized water is arranged at the connecting port, the atomizing nozzle is connected with an electrified ionized water generating device, and a chimney water outlet is formed in the bottom of the chimney pipe; an electric dust removal process is adopted, so that the generation of sewage can be effectively avoided, and water pollution events are avoided; the chimney is used as a positive electrode for adsorption, and electric precipitation equipment does not need to be additionally arranged, so that the structure is omitted; and meanwhile, dust removal is more thorough due to the large-size design of the chimney.

Description

technical field [0001] The invention relates to the technical field of flue gas dust removal, in particular to a dry tail gas treatment system. Background technique [0002] At present, wet dedusting systems are mostly used at home and abroad for drying flue gas, but the efficiency of wet dedusting systems is low, and the emission is difficult to meet the existing national standards, and the sediment discharged from wet dedusters needs to be treated, and the clarified washing water should be reused Otherwise, it will not only cause secondary pollution, but also cause waste of water resources. Wastewater generated by wet dedusting requires a separate wastewater treatment system, which requires high operating and investment costs. If the bag-type dust removal system is used for drying flue gas, it can meet the national dust emission standards. However, due to the large amount of water vapor in the flue gas, the water vapor is prone to condensation due to temperature changes, ...

AI Technical Summary

Problems solved by technology

[0002] At present, wet dedusting systems are mostly used at home and abroad for drying flue gas, but the efficiency of wet dedusting systems is low, and the emission is difficult to meet the existing national standards, and the sediment discharged from wet dedusters needs to be treated, and the clarified washing water should be reused , otherwise it will not only cause secondary pollution, but also cause waste of water resources

Wastewater generated by wet dedusting requires a separate wastewater treatment system, which requires high operating and investment costs

If the bag-type dust removal system is used for drying flue gas, it can meet the national dust emission standards. However, due to the large amount of water vapor in the flue gas, the water vapor is prone to condensation due to temperature changes, which is likely to cause blockage of the bag dust removal filter bag, and the flue gas circulation effect is poor. Finally, the bag filter fails, so the bag filter is difficult to apply here

[0003] To sum up, the dust control of drying flue gas is a difficult problem in air pollution control, and the existing dust removal device and dust removal process have not effectively solved this problem

Images