福建连城锰矿庙前矿区4号矿段浅孔留矿法开采矿石二次贫化的控制  

The Control of Ore Secondary Dilution in Mining Ore and Shallow Hole Method of No.4 Mine in Temple Area

作　　者：马东辉[1] 

机构地区：[1]福建省连城锰矿,福建连城366215

出　　处：《中国锰业》2010年第1期45-47,共3页China Manganese Industry

摘　　要：分析福建连城锰矿庙前矿区4号矿段地质及矿体情况,指出围岩崩落是浅孔留矿法矿石二次贫化的主要原因,而高品位矿石的流失矿石则是二次贫化的另一个原因。为使矿石开采的二次贫化得到有效控制,提出了优化爆破参数,锚杆加固围岩,回采其间固定漏斗出矿等相应的控制措施。The author has made an analysis of No.4 ore geology and ore body,pointing out that the caved is rock hole method in ore secondary dilution and the loss of high grade ore minerals is secondary dilution. To make the ore mining of secondary dilution obtained in effective control, the author puts forward the blasting parameter, including the anchor pole in the surrounding rock, the mining ore in fixed funnel and other appropriate control measures.

关 键 词：矿石二次贫化 浅孔留矿法 控制措施 降低矿石二次贫化率 

分 类 号：TD853.331[矿业工程—金属矿开采]