急倾斜极薄矿脉机械化开采新技术及应用
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摘要
急倾斜极薄矿脉开采,常遇到采矿方法难以确定、损失率贫化率高、作业空间狭小等问题。为研究适宜的采矿方法,以某金矿的急倾斜极薄矿脉为研究对象,针对原留矿法的弊端和该矿体开采技术条件,提出采用机械化水平分层削壁充填采矿法进行开采,工业试验结果表明,损失率、贫化率分别降低了9,18个百分点,预期效果良好,可为类似矿山提供借鉴。
The problems such as difficulty in determining the mining method,high loss rate,high dilution rate,and narrow working space are existed in the mining process of steeply inclined and extremely thin ore vein.In order to study the suitable mining method of the steeply inclined and extremely thin vein in a certain gold mine,the mechanical horizontal slice and wastelifting filling mining method was proposed according to the disadvantages of original shrinkage method and the mining technical conditions.The industrial tests results showed that the ore loss rate and the dilution rate was respectively reduced by 9 percentage points and 18 percentage points,with a good expecting effect.This method can provide a reference for similar mines.
The problems such as difficulty in determining the mining method,high loss rate,high dilution rate,and narrow working space are existed in the mining process of steeply inclined and extremely thin ore vein.In order to study the suitable mining method of the steeply inclined and extremely thin vein in a certain gold mine,the mechanical horizontal slice and wastelifting filling mining method was proposed according to the disadvantages of original shrinkage method and the mining technical conditions.The industrial tests results showed that the ore loss rate and the dilution rate was respectively reduced by 9 percentage points and 18 percentage points,with a good expecting effect.This method can provide a reference for similar mines.
引文
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[12]张庆旭,张宝,宋甫,危流永,周益龙.削壁充填法在珊瑚矿的应用研究[J].采矿技术,2015,15(3):1-2+13.
[2]王汉章.浅孔留矿法在玉泉坝金矿的应用[J].采矿技术,2015,15(2):22-24.
[3]黄传宝,盛佳,周慧霞.壁式爆力分采全面采矿法在摩天岭矿区的应用研究[J].采矿技术,2017,17(4):1-2+14.
[4]张文方,王文丽.冷水沟倾斜极薄铜矿脉采矿方法[J].有色金属(矿山部分),2016,68(4):8-12.
[5]贾洪杰,常海龙.削壁充填采矿法在金厂沟梁金矿的应用实践[J].黄金,2001,22(1):33-35.
[6]郭连军,肖振秀,董国明.浅孔留矿法与削壁充填法的应用与对比[J].资源与矿业,2007,9(2):105-108.
[7]唐学义,严鹏,汪志国,任玉东,姜永恒.混凝土垫层削壁充填法在急倾斜极薄矿脉中的应用[J].现代矿业,2017,33(10):52-54+63.
[8]翟会超,闫满志.壁式削壁充填法采场顶板临界跨度计算[J].岩土力学,2013,34(S1):337-339.
[9]曹宇.削壁充填法在瑶岗仙钨矿倾斜矿脉开采中的应用[J].采矿技术,2011,11(4):15-16.
[10]张文方,王文丽,王春.马子冲锰矿急倾斜极薄矿脉采矿方法研究[J].金属矿山,2017(5):33-37.
[11]何良军,赵文奇,高忠.泗人沟铅锌矿削壁充填采矿法优化研究[J].矿业研究与开发,2016,36(6):78-81.
[12]张庆旭,张宝,宋甫,危流永,周益龙.削壁充填法在珊瑚矿的应用研究[J].采矿技术,2015,15(3):1-2+13.