摘要
基于理论分析和单体实验,初步确定尾矿库抑尘剂组成和浓度.运用正交试验方法,对抑尘剂配方进行优化,在实验室对最优配方进行了抗压强度、耐水性能、抗冻融性能和抗风吹性能等多方面环境适应性模拟实验.结果表明,该抑尘剂喷洒在尾矿表面后,结壳连续完整,壳体抗压强度达到247kPa,且具有较强的耐水性能、抗冻融性能和抗风吹性能.应用该配方进行了工业试验.结果表明,喷洒抑尘剂的尾矿库表面所结壳体历经203d日晒、多次雨淋后,依然连续完整,能承受18m.s-1强风吹袭,表现出很强的抑尘效果和环境适用性.
On the basis of theoretic analysis and monomer testing, the composition and concentration of a dust suppressant used in tailings dams were determined initially, and then the best prescription was developed by the orthogonal test. The environmental adaptability simulation test of the dust suppressant in the laboratory were carried out, including compressive strength, water resistant, freeze-thaw resistant and wind erosion resistant. The result showed that the dust suppressant had a very strong ability of water resistant, freeze-thaw resistant and wind erosion resistant, and the shell compressive strength was 247 kPa. The dust suppressant was tested by field spraying in the tailings dam of a golden mine. The shell was continuous and integrated after going through the weatherbeaten for 203 days, and could bear strong wind （18 m·s^-1） blowing. It is shown that the dust suppressant has very good dust suppressing performance and strong environmental adaptability.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2009年第8期951-956,共6页
Journal of University of Science and Technology Beijing
基金
北京市教育委员会共建项目建设计划资助项目(No.XK100080432)
关键词
尾矿库
抑尘剂
抗压强度
环境适应性
tailings dam
cohesive dust suppressant
compressive strength
environmental adaptability
作者简介
杜翠凤（1966-），女，副教授，博士，E-mail：ducuifeng@126．com
