云南铜厂沟铜钼矿低贫损分段崩落与浅孔留矿耦合采矿法探索

Exploration on Coupling Mining Method Low-poor Segmentation and Shallow Hole Retention in Tongchanggou Copper Molybdenum Deposit of Yunnan Province

铜厂沟矿区多为破碎、中厚、急倾斜矽卡岩型铜钼矿体,原设计采用上向水平分层充填采矿法,在采矿实验中存在作业安全性差、劳动生产效率低、损失贫化大、采矿成本高等缺陷,严重制约了试生产组织。矿山急迫需要一种安全、高效、成本能够控制的采矿方法满足试生产矿石持续供应。通过充分研究,提出了低贫损分段崩落与浅孔留矿耦合采矿方法的设想,进一步降低了安全风险、简化工艺、控制损失贫化等。通过采矿方法的优化设计,解决了企业生产存在的实际问题,提高了采矿效率,对其它同类矿山具有一定的参考借鉴意义。

Most of the mining areas are fractured,medium-thick and steeply inclined skarn-type copper-molybdenum ore bodies.The original design adopted upward horizontal slicing and filling mining method.There are some defects in mining experiments,such as poor operation safety,low labor productivity,large loss and dilution,and high mining cost,which seriously restrict the organization of trial production.Mine urgent need for a safe and efficient mining method meet the trial production,cost can control ore continue to supply.Through full study,the author puts forward the idea of coupling mining method of low-loss sublevel caving and shallow hole shrinkage,which further reduces the safety risk,simplifies the process,and controls loss dilution.Through the optimization design of mining methods,the practical problems existing in the production of enterprises are solved,the mining efficiency is improved,and it has certain reference significance for other similar mines.