Electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal

Abstract

The invention discloses an electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal and relates to an industrial dust collector. The electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal is provided with the electrostatic fabric filter, an adsorbent injection device and an adsorbent container; the electrostatic fabric filter is provided with an inlet speaker, a housing, an electric-field region, an electric bag transition zone, a bag-type dust collecting area, an ash bucket, a gas purifying chamber and an outlet flue; the inlet speaker is arranged at the inlet of the housing; the electric-field region, the electric bag transition zone and the bag-type dust collecting area are arranged in the housing; the electric-field region is arranged at the rear part of the inlet speaker; the electric bag transition zone is arranged between the electric-field region and the bag-type dust collecting area; the ash bucket is arranged at the bottom part of the housing; the gas purifying chamber is arranged at the top of the bag-type dust collecting area; the outlet flue is arranged at the top of the gas purifying chamber and communicated with the gas purifying chamber; the adsorbent injection device and the adsorbent container are arranged at the top of the electric bag transition zone; and a feed outlet of the adsorbent container is connected with a feed inlet of the adsorbent injection device. An adsorbent is fully mixed with flue gas, so that the adsorbent is evenly distributed, and the mercury removal effect of the adsorbent is good.

Description

Technical field [0001] The invention relates to an industrial dust collector, in particular to a control fine particle PM mainly used to purify air pollutants discharged during industrial production processes such as thermal power, cement, steel, etc. 2.5 Electric bag composite dust collector for synergistic mercury removal. Background technique [0002] With the rapid economic development and the ever-increasing improvement of people's living standards, the country has become more and more stringent in air quality control requirements, and at the same time put forward higher requirements for the performance and reliability of dust removal equipment. [0003] PM 2.5 Refers to particles with an aerodynamic diameter less than 2.5μm, PM 2.5 It is easy to accumulate toxic heavy metals, acidic oxides and organic pollutants in the air. Its characteristics of being inhalable to the lungs are far more harmful to human health than PM 10 Big. The country attaches great importance to PM 2.5 P...

AI Technical Summary

Problems solved by technology

The electrostatic precipitator has a better removal effect on larger particles, but the removal efficiency of fine particles needs to be improved; the dust removal efficiency of bag filter is higher, and it has a better removal effect on fine particles, but due to the higher concentration of dust, This results in frequent bag dust removal, reduces the service life of filter bags, and increases maintenance costs and management difficulties

The electrostatic bag composite dust removal device (adopting the dust removal combination of the front electric bag and the back bag) has better solved the main technical problems of the single use of the electrostatic precipitator or the bag filter, but it is not suitable for fine dust PM 2.5 and the capture of heavy metal mercury still need to be further strengthened

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