Flue gas ultra-clean treatment system based on particle chemical agglomeration and cloth bag dust removal

Abstract

The invention belongs to the field of flue gas dust removal, and particularly relates to a flue gas ultra-clean treatment system based on particle chemical agglomeration and bag-type dust removal. Theflue gas ultra-clean treatment system based on particle chemical agglomeration and bag-type dust removal comprises agglomeration liquid blending and generating equipment, a bag-type dust remover andan atomization spraying device; the liquid outlet of the agglomeration liquid blending and generating device is communicated with the atomization spraying device through a conveying pipe, and a firstpower conveying device is arranged on the conveying pipe; the atomization spraying device is arranged in an inlet duct of the bag-type dust remover and is used for spraying the agglomeration liquid into the flue gas flowing through the inlet duct so that fine particles in the flue gas are chemically agglomerated into large particles. The flue gas ultra-clean treatment system has the advantages ofreasonable design, ingenious combination of chemical agglomeration and bag-type dust removal, integration of agglomeration liquid preparation and dust removal, convenient operation and use of the whole equipment, small space and low cost, thereby achieving the super purification treatment of the smoke dust.

Description

technical field [0001] The invention belongs to the field of flue gas dust removal, in particular to a flue gas ultra-clean treatment system based on the chemical agglomeration of particulate matter and bag dust removal. Background technique [0002] Today's dust collectors are mainly electrostatic precipitators and bag dust collectors. Although it is generally believed that bag dust collectors are suitable for capturing fine, dry, non-fibrous dust and have specific advantages over electrostatic precipitators, it is difficult to use bag dust collectors alone. Meet ultra-low emission requirements. Reason for failure: [0003] 1) The working characteristic of the bag filter is that the dust in the flue gas is blocked on the surface of the filter bag while the flue gas passes through the filter bag, and the fine particles cannot escape through the filter bag; [0004] 2) Although the filter bag technology is also continuously improving the filtration efficiency, such as t...

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Problems solved by technology

[0004] 2) Although the filter bag technology is also continuously improving the filtration efficiency, such as the use of film-coated filter materials or ultra-fine fibers, etc., the effect on ultra-fine dust below PM2.5 is limited;

[0005] 3) Reduce the speed of flue gas passing through the filter bag, that is, the filtering wind speed. Although the passing fine dust is reduced, the required filtering area is large

The equipment is bulky, occupies a large area, and the investment cost is high

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