梅山铁矿加大结构参数过渡分段的研究

Investigation on The Transitional Levels In Structural Parameter Enlargement in Meishan Iron Mine

为实现梅山铁矿开采结构参数从现有的 ( 1 0～ 1 3)m× 1 0m合理过渡到 1 5m× 1 5m ,对影响过渡分段采矿损失、贫化指标的原因进行了分析 ,采用实验室物理模拟、现场定量测定等手段 ,找出了过渡阶段不同分段矿石流动规则 ,实行了采用截止品位放矿的放矿管理办法 ,在生产中获得成功应用。

To realize the rational transition of the mining structure parameter of Meishan Iron Mine from the existing (10～ 13)m×10m to 15m×15m,analysis was made of the factors that affected the dilution and loss of the transitional level mining.Laboratory physical simulation and on site quantitive measurement were used to find out the ore flowing law of different levels between the transitional sections and the cut off grade method was adopted for ore drawing management,which achieved success in production