现代矿业
現代礦業
현대광업
Modern Mining
2015年
8期
7-10,22
,共5页
采矿方法转换%多分层同步上向水平进路采矿法%回采率%贫化率
採礦方法轉換%多分層同步上嚮水平進路採礦法%迴採率%貧化率
채광방법전환%다분층동보상향수평진로채광법%회채솔%빈화솔
Transition of Mining method%Multi-layers synchronization upper level approaching min-ing method%Recovery ratio%Dilution ratio
和睦山铁矿后观音山矿段－200 m 中段原采用分段空场嗣后充填采矿法，在开采过程中发现矿岩节理裂隙比较发育，矿体稳固性差，矿石回采率仅为65％，贫化率高达18％，后期转换为上向水平进路充填采矿法，又因后观音山矿体水平面积小，生产能力低，严重影响矿区的产量。通过技术攻关，矿山采用多分层同步上向水平进路台阶式开采，回采率达到90％，贫化率降至5％，生产能力达1500 t／d 以上，取得了很好的效果，采矿方法的平稳转换取得成功。
和睦山鐵礦後觀音山礦段－200 m 中段原採用分段空場嗣後充填採礦法，在開採過程中髮現礦巖節理裂隙比較髮育，礦體穩固性差，礦石迴採率僅為65％，貧化率高達18％，後期轉換為上嚮水平進路充填採礦法，又因後觀音山礦體水平麵積小，生產能力低，嚴重影響礦區的產量。通過技術攻關，礦山採用多分層同步上嚮水平進路檯階式開採，迴採率達到90％，貧化率降至5％，生產能力達1500 t／d 以上，取得瞭很好的效果，採礦方法的平穩轉換取得成功。
화목산철광후관음산광단－200 m 중단원채용분단공장사후충전채광법，재개채과정중발현광암절리렬극비교발육，광체은고성차，광석회채솔부위65％，빈화솔고체18％，후기전환위상향수평진로충전채광법，우인후관음산광체수평면적소，생산능력저，엄중영향광구적산량。통과기술공관，광산채용다분층동보상향수평진로태계식개채，회채솔체도90％，빈화솔강지5％，생산능력체1500 t／d 이상，취득료흔호적효과，채광방법적평은전환취득성공。
During the mining process of -200 m middle roadway of Guanyinshan ore block in He-mushan iron mine,the ore-bearing rock joints and fissures are developed,the orebody stability is poor, the ore recovery ratio is only 65%,and the dilution ratio is 18%.Then,the original mining method of sublevel open stope filling is converted to the method of upper level approaching filling.But the horizontal area size of orebody is small,the production capacity is low,so,the output of the mining area is affected seriously.Through technology researching,the multi-layers synchronization upper level approaching min-ing method is adopted to deal with the orebody,the ore recovery ratio is 90%,dilution ratio falls to 5%, the production capacity is more than 1 500 t/d,which obtains good effects,and the smooth transition of the mining method is succeeded.
