露天矿公路扬尘机理及抑尘

Road dust formation and suppression in an open pit

分析了露天矿粉尘的危害以及在运输荷载下的扬尘机理,提出了与传统方法完全不同的粘结、润湿和保水一体的生态抑尘思想,进行了广泛的实验模拟和现场工业试验.结果表明,新型抑尘剂具有粘结、凝并、吸湿、保水、固结路面、自适应水土环境的效果,制备工艺简单,综合费用合理,性价比高,能满足露天矿公路运输和其他作业场址的防尘要求.

A simple statement about dust hazard and the mechanism of roadway dust induced by haulage loads in an open pit were analyzed. Based on the theoretic results, a concept for eco-typed dust control and a recipe of roadway dust suppression were introduced. The dust suppressor characterized by adhesion, moisture-absorption and anti-evaporation is completely different from those in conventional ways. An extensive experimental simulation and commercial test were carried out and the results show that the suppressor can meet the requirement of roadway dust suppression in an open pit and other similar sites because of its excellent dust suppression effects such as adhesion, agglomeration, moisture absorption and anti-evaporation and pave-concretion, and self-adaptive to natural environment, simple preparation technology, rational comprehensive cost and high specific performance.