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Performance Test and Application Research of New Gemini Wetting Dust Suppressant

IOP conference series. Earth and environmental science, 2021-07, Vol.804 (4), p.42015 [Peer Reviewed Journal]

Published under licence by IOP Publishing Ltd ;ISSN: 1755-1307 ;EISSN: 1755-1315 ;DOI: 10.1088/1755-1315/804/4/042015

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  • Title:
    Performance Test and Application Research of New Gemini Wetting Dust Suppressant
  • Author: Li, Ming ; Qiu, Linling ; Yang, Huaizhen ; Fei, Xudong
  • Subjects: Chemical dust suppressant ; Dust removal efficiency ; Gemini surfactant ; Spray dust suppression ; Wetting agent
  • Is Part Of: IOP conference series. Earth and environmental science, 2021-07, Vol.804 (4), p.42015
  • Description: Abstract In order to solve the problem of low efficiency of dust-catching by water mist to the hard-to-wetting and respirable dust, a new wetting type dust suppressant of Gemini was proposed based on the analysis of the wetting effect of water mist. Based on the evaluation indexes of surface tension, contact Angle, wetting and settling rate of dust spray, the performance of polyquaternary ammonium salt AG-101, dodecanol polyoxyethylene etheryl dimethyl ammonium chloride, octyl alcohol polyoxyethylene etheryl dimethyl decyl ammonium chloride and macromolecular cationic PCD Gemini surfactants were optimized, and had carried on the dust-suppression performance in a certain open-pit iron mine field experiment research. The results show that the comprehensive dust suppression performance of mass concentration of 2.0% of quaternary ammonium salt polymer AG-101 is the best, indoor experimental tests showed the dust rate is 4.2 times the speed of water, the field test showed that the initial wetting speed is 4.4 times the speed of water, and the action time of dust and water mist suppression is shortened obviously. The field application proves that the total dust removal efficiency is 82.3% (water is 56.6%), which is 45.4% higher than that of water. The dust removal efficiency of respirable dust is 92.1%, which is 16.5% higher than that of water. The research results provide a new dust suppressing agent for optimization of mine spray dust removal.
  • Publisher: IOP Publishing
  • Language: English
  • Identifier: ISSN: 1755-1307
    EISSN: 1755-1315
    DOI: 10.1088/1755-1315/804/4/042015
  • Source: IOPscience (Open Access)
    IOP 英国物理学会OA刊
    Alma/SFX Local Collection
    ProQuest Central
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