Environmental Science and Engineering Department,Liaoning Technical University
China Energy Shenhua Guoneng Dananhu No. 2 Mine

抑尘剂注水预湿减尘是从产尘根源上解决露天煤矿工作面粉尘污染的有效方法。层结性原岩在垂直方向上性质差异极大,单一类型润湿剂无法满足整体工作面预湿需求。以新疆大南湖二矿为研究背景,采集、测定6层原岩化学官能团,分析其亲水性差异原因;选取2种阳性、6种阴性、3种非离子及4种两性共15种表面活性剂进行单体优选实验,确定最优单体材料;测试表面张力和润湿时间2项主控指标,通过正交实验确定注水润湿剂最佳质量分数配比为0.15%OP、0.10%KT、0.15%LAD-40、0.10%LAB-35。实验结果表明,自主研发的润湿剂对6种火烧岩的润湿效果均高于环保型、高分子型及润湿型3种市售抑尘剂。研究成果有效解决了层结性原岩润湿不均的现实难题,为露天矿工作面粉尘防治提供了技术支撑。

Injecting the dust inhibitor solution is an effective method to solve the dust pollution of the open-pit coal mine working face from the root of dust production. The properties of stratified original rocks differ greatly in the vertical direction and a single type of wetting agent cannot meet the pre-wetting demand of the whole working face. Taking Dananhu No. 2 Mine in Xinjiang as the research background,the chemical functional groups of layers of protolith were collected and obtained. Their characteristic on hydrophilicity were analyzed. A total of surfactants including positive,6 negative,3 nonionic and amphoteric were selected for monomer optimization experiments to determine the optimal monomer materials. As two main control indexes, surface tension and wetting time were tested. The optimal mass fraction ratio of water injection wetting agent was determined as 0. 15% OP,0. 10% KT,0. 15% LAD-40 and 0. 10% LAB-35 by the orthogonal test. The results of performance comparison show that the wetting effect of self-developed wetting agents on the six kinds of burnt rock is higher than that of environmental protection type,polymer type,and wetting type. The research findings could effectively solve the practical problem of uneven wetting of stratified original rock and provide technical support for dust control in a open-pit mine working face.

国家重点研发计划项目(2019YFC180380103);辽宁省教育厅科技项目(LJ2020JCL031)

赵晓亮,乔一童,杜婧,等.新疆露天矿层结性火烧岩注水润湿剂配方研究[J].矿业安全与环保,2024,51(5):154-161.

ZHAO Xiaoliang,QIAO Yitong,DU Jing,et al. Study on formulation of waterflood wetting agent for stratified burnt rock in Xinjiang open-pit coal mine[J]. Mining Safety & Environmental Protection,2024,51(5):154-161.