喷雾降尘用化学除尘剂的实验研究

Experiment Study on Chemical Dedusting Agent for Spraying Dust Control

为了改善水与粉尘的结合能力,提高煤矿喷雾降尘效果,进一步改善矿井工作面的工作环境,通过应用JK99C型表面张力仪和视频光学接触角测量仪对优选的SDS、CAB-35、JFCS、BS-12四种表面活性剂溶液不同浓度下的表面张力和接触角进行了测试,确定其CMC,并以此浓度作为四种表面活性剂溶液的配比浓度;通过两两单体复配的原则,对6种复配溶液进行了煤粉沉降与反向渗透实验,并结合喷雾模拟实验,确定了降尘用表面活性剂的最优配方为质量分数为0.05%的CAB-35+JFCS的复配溶液,具有较好的降尘效果。

In order to improve a binding capacity between water and dust, to increase a spraying dust control effect of a mine and to further improve a working environment of a working face in the mine, a JK99C mode surface tension meter and a video optical contact goniometer were applied to the measurement and test on the surface tension and contact angle of the fined selected SDS, CAB - 35, JFCS and BS - 12 surfactant solutions under different concentration. The CMC was determined and the concentration was applied to the mixing concentration of the four surfactant solutions. With a principle of each two single remixing, coal powder settling and reverse osmosis experiments were conducted on six remixed solutions. In combination with the spraying simulation experiment, an optimal formula of the dust control surfactant was determined as a CAB -35 ＋ JFCS remixed solution with a quantity fraction of O. 05%. And the surfaetant could have good dust control effect.