摘要
石湖金矿采用上向水平分层胶结充填采矿法回采急倾斜中厚破碎矿体过程中,存在采场出矿能力低、工艺复杂、成本较高等问题,且靠近上盘的矿体夹杂部分绿泥石,冒落严重,极易塌方,已严重威胁采场内设备及人员的安全。结合石湖金矿矿体的开采技术条件,开展了平行中深孔落矿分段充填采矿法试验研究,在确保采场安全的情况下,通过改变现有的采矿工艺,尽可能减少采场上盘暴露时间和暴露面积,最终达到了提高生产能力,保证采场内人员及设备安全的目的。矿块生产能力提高至202 t/d,采矿直接成本降低至81.05元/t,经济效益明显,可供同类型矿山参考借鉴。
When the steeply inclined and medium-thick fragmented ore bodies in Shihu Gold Mine is mined with upwards horizontal slicing cementation filling mining method,the productivity of the stope is low,the process is complex and the cost is high.Moreover,due to the inclusion of part of chlorite in the ore body near the hanging wall,the caving is serious and the roof is prone to collapse,jeopardizing the safety of the equipment and personnel in the stope.Based on that and the mining technical conditions in Shihu Gold Mine,experimental study on moderately longhole caving and sublevel filling mining method is carried out,which,in the premise of safety in the stope,renovates the existing mining technology to minimize the exposure time and area of the hanging wall,and finally the purpose of"improving the production capacity and ensuring the safety of the personnel and equipment in the stope"can be achieved.The ore block production capacity is increased to 202 t/d,the direct mining cost is reduced to 81.05 yuan/t,and the economic benefits are great.The study can be used as reference by similar mines.
作者
梅群力
周乐
刘龙琼
王征
Mei Qunli;Zhou Le;Liu Longqiong;Wang Zheng(Hebei Zhongjin Gold Co.,Ltd.;Changchun Gold Research Institute Co.,Ltd.)
出处
《黄金》
CAS
2020年第7期39-43,共5页
Gold
基金
中国黄金集团有限公司科研项目(A2019CK07)。
关键词
急倾斜中厚
破碎矿体
平行中深孔
分段
充填采矿法
steeply inclined and medium-thick
fragmented ore body
parallel moderately longhole
sublevel
filling mining method
