现代矿业
現代礦業
현대광업
Express Information of Mining Industry
2011年
4期
1-3
,共3页
进路宽度%放出体形态%矿石回收率
進路寬度%放齣體形態%礦石迴收率
진로관도%방출체형태%광석회수솔
Drift width%Shape of falling ore ellipsoid%Recovery rate of ore
无底柱分段崩落采矿法在国内外矿山应用广泛,但在实际生产中对矿石贫化损失较难控制,而贫损指标的优劣又取决于放出体的形态,因此研究放出体形态对控制贫化与损失具有重要的意义。结合首云铁矿采场结构参数优化的课题,针对矿山采场设计参数进行分析,通过室内物理模拟实验,揭示了进路宽度与放出体形态的变化规律。
無底柱分段崩落採礦法在國內外礦山應用廣汎,但在實際生產中對礦石貧化損失較難控製,而貧損指標的優劣又取決于放齣體的形態,因此研究放齣體形態對控製貧化與損失具有重要的意義。結閤首雲鐵礦採場結構參數優化的課題,針對礦山採場設計參數進行分析,通過室內物理模擬實驗,揭示瞭進路寬度與放齣體形態的變化規律。
무저주분단붕락채광법재국내외광산응용엄범,단재실제생산중대광석빈화손실교난공제,이빈손지표적우렬우취결우방출체적형태,인차연구방출체형태대공제빈화여손실구유중요적의의。결합수운철광채장결구삼수우화적과제,침대광산채장설계삼수진행분석,통과실내물리모의실험,게시료진로관도여방출체형태적변화규률。
Pillarless sublevel caving mining method has been used widely in the mine both at home and abroad, which is difficult to control the loss of ore dilution in the practical production. However, the loss and dilution index depend on shape of falling ore ellipsoid. So it is significant to research the falling ore ellipsoid shapes to control the ore loss and dilution. Combined with the project of stope structural pa- rameter optimization of Shouyun iron ore, design parameter of stope was analyzed. Through indoor physical simulation test, the changing laws between drift width and ore ellipsoid shape was uncovered.