Research on Slurrying System of Mine Ultrahigh-water Packing Materials and Its Application

Slurrying system is the core of the whole filling system.In order to let the ultrahigh-water material backfill mining technology adapt to industrialized application,the slurrying system was studied in-depth with the background of the technical test in Tao-one Coalmine.The form of slurrying system and the production capacity were determined.Each part of the semi-continuous slurrying system was designed in detail and its application effect was evaluated.The results show that the semi-continuous slurrying system is the better choice for the preparation of ultrahigh-water material grout and the system not only runs stable and reliable and makes accuracy ratio of slurry,but also it is of great slurrying ability and simple operation(all operations are controlled by PLC),satisfying the needs of slurry preparation.However,it has a larger volume and more operation links and underground chambers have poor ventilation.Besides,dust and noise are bigger in the production process.Therefore,further improvement should be done in the future.In general,this system should be placed on the ground,if not,the chamber ventilation management would be strengthened.