某铁矿尾砂充填材料的力学性能试验研究

Mechanical properties of tailings filling materials in an iron mine

结合某铁矿实际情况,为满足某铁矿地下开采扩建工程充填采矿的需要,开展矿山生产现状与充填物料调研与分析、充填材料基础物理化学性质研究、充填材料配比试验研究、充填料浆流变特性试验研究、新型胶凝材料的探索试验等一系列测试与试验分析研究工作,为充填系统设计提供依据。根据测试结果和分析结论,针对某铁矿充填料浆输送能力100～120m3/h,充填倍线约为5的情况下,推荐输送浓度66%～68%,推荐输送管径100～110mm。

Combining with the actual situation of an iron ore,in order to meet the needs of the fill mining of expansion project of an iron ore mine,a series of tests and experimental analysis and research work were carried out, included on the status quo of mine production and materials filled with materials,the study of the basic physical and chemical properties of filled materials,the experimental study of the ratio of filled materials,the experimental study of the rheological properties of filled materials,and the exploration experiment of new types of cemented materials, providing the basis for the system design.According to the experimental results and the conclusion of the analysis,it is recommended that the conveying concentration 66%~68%and the conveyor diameter 100~110mm in view of the 100~120m^3/h of an iron ore filling slurry conveying capacity and the filling of a double line of about 5.