Preparation and performance analysis of an environmental friendly dust suppressant for transportation in mining area
Wang Naiguo1, Xu Hongze2, Zhang Qian3, Zhang Zhongzheng4, Zhu Liang4, Sun Jian5
1. Inner Mongolia Energy Company with Limited Liability, Shandong Energy Xinwen Mining Group, Otog Qianqi 016299, China; 2. Gaozhuang Coal Industry Limited Company, Shandong Energy Zaozhuang Mining Group, Weishan 277605, China;
3. Ventilation and Dust Control Department, Shandong Energy Zaozhuang Mining Group, Zaozhuang 277899, China; 4. Qiwu Coal Mine, Shandong Energy Zaozhuang Mining Group, Weishan 277606, China; 5. College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
In order to effectively reduce the problem of dust during transportation in mining areas, an environmentally friendly dust suppressant was prepared based on the theory of chemical free radical copolymerization. The optimal ratio of matrix starch, monomer acrylic acid, thickener sodium alginate and wetting agent sodium dodecylbenzene sulfonate was discussed. The wettability, film hardness, microstructure and dust suppression effect of the dust suppressor were studied. The results show that the wettability of dust suppressant is better than that of water, which is conducive to wetting and bonding coal dust, forming a compact protective film to resist external damage, and the maximum pressure bearing capacity can reach 100 N; in addition, the dust suppressant can withstand the wind speed within 8 m / s, and the dust suppression effect can reach 90%. Finally, it is concluded that the dust suppressant is an ideal dust suppressant used to prevent the transportation of dust in the mining area.
