不同类型表面活性剂复配对煤尘润湿特性的影响研究

Influence Research of Different Types of Surfactant Compound on Wetting Properties of Coal Dust

为降低工业生产中的细微粉尘浓度,针对优选出的3种不同类型的活性剂单体采取二元单体复配的方式进行试验研究,通过润湿性能研究并分析表面活性剂对降尘效率的影响。研究结果表明,阴离子与非离子型、阴离子与两性离子型表面活性剂复配均可产生协同增效效应,其中AES与AEO-9质量比为5∶1至1∶5及AES与LAB-35质量比为5∶1、4∶2时增效显著。拟合结果显示:雾滴粒径在40~130μm内无尘雾滴粒径D_(w)与被捕粉尘平均粒径ΔD之间存在函数关系式,且PM_(10)的最佳捕尘雾滴粒径为80~120μm。

In order to reduce the fine dust concentration in industrial production,the three different types of active agent monomers selected were experimentally studied by binary monomer compounding,and the influence of surfactants on dust reduction efficiency was studied and analyzed by wetting performance.The results show that the combination of anionic and nonionic,anionic and zwitterionic surfactants can produce synergistic effects,and the mass ratio of AES to AEO-9 is 5∶1 to 1∶5 and the mass ratio of AES and LAB-35 is 5∶1 and 4∶2.The function relationship between the droplet size D_(w) and the average particle size ΔD of captured dust was fitted with the droplet size in the range of 40-130μm,and the optimal dust droplet size for PM_(10) was proposed to be 80-120μm.