Emission reducing system for removing sintering flue gas fine particles based on pulse discharge
A technology of fine particles and sintering flue gas, which is applied in electrostatic effect separation, solid separation, chemical instruments and methods, etc., can solve the problems of limited treatment effect and difficulty in effectively reducing the emission of fine particles, so as to improve the emission reduction effect and improve the agglomeration. Removal Efficiency, Emission Control Effect
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Embodiment 1
[0040] Such as figure 1 As shown, an emission reduction system based on pulse discharge in this embodiment for removing fine particles from sintering flue gas includes a flue gas pipe 610 and a removal device. The flue gas pipe 610 is connected to the bellows at the lower part of the sintering trolley. The removal device is arranged on the flue gas pipe 610, and the removal device includes a pulse charging unit 100, an agglomeration unit 200, and a trapping unit 300; wherein: the pulse charging unit 100 charges the particles through pulse discharge, and the agglomeration unit The 200 sprays an agglomerating agent into the flue gas to agglomerate the charged particles, and the capture unit 300 is used to capture the aggregated particles. The removal device is arranged on the flue gas duct 610 connected to the rear wind box 622, which is the corresponding wind box from the middle position in the longitudinal direction of the sintering trolley to the lower end position.
[0041]...
Embodiment 2
[0053] Such as figure 2 As shown, the basic content of this embodiment is the same as that of Embodiment 1, the difference is that the removal device also includes a pretreatment unit 400, and the pretreatment unit 400 is used to spray agglomerating agent or water or salt solution mist into the flue gas Droplets, water is used in this embodiment, and the particle size of the agglomerating agent or water sprayed into the pretreatment unit 400 is 0.2-3 μm. The pretreatment unit 400 includes a pretreatment nozzle 410, which is used to spray agglomerating agent or water or salt solution droplets into the flue gas, and what is sprayed in this embodiment is: water droplets , The droplet size is 0.2-3μm.
[0054] The emission reduction effect of fine particles using the removal device is as follows, wherein: PM10 emission reduction efficiency (%) is: 47.1%, PM2.5 emission reduction efficiency (%): 34.3%, improving the emission reduction effect of fine particles. Compared with Exam...
Embodiment 3
[0058] Such as image 3 and Figure 4 As shown, the basic content of this embodiment is the same as that of Embodiment 2, except that the pretreatment unit 400 of the removal device is arranged on the pipeline axis of the expansion tube 510, and the pretreatment unit 400 includes a pretreatment nozzle 410 and a guide tube. The flow member 420, wherein the flow guide member 420 is arranged on the windward side of the pretreatment nozzle 410, and the flow guide member 420 is arranged at the pipe wall edge position of the expansion pipe 510, wherein the flow guide member 420 includes a first flow guide block 421 and a second flow guide block 421 Two deflector blocks 422, the first deflector block 421 is arranged on the windward side of the second deflector block 422, the first deflector block 421 and the second deflector block 422 are arranged at the edge position of the expansion pipe 510, and the pretreatment spray There is no deflector block directly in front of the tube 410,...
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Abstract
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