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1.Under the determinate boundary or close condition increasing the height of steps can realize steep slope mining and engender more much stope space, which will be propitious to balance stripping ratio, increase storage for exploiting and improve mining intensity and production capacity.
摘要在露天矿一定的剥离境界或封闭条件下，大幅度增加台阶高度可以实现陡帮开采和形成更大的采场空间，从而有利于矿山平衡剥采比，增加备采储量，提高矿山开采强度和生产能力。收藏指正
2.The conventional methods for mining such seams including the longwall blasting and block caving suffer form the drawbacks of being low in recovery,high in labor intensity and low in efficiency.After shifting to the use of the fully-mechanized extraction system by the zhaogezhuang Branch Mining Industry Co.of Kailuan(Group)Co.,the mining of the pitching seams has met with remarkbable social and economic result.
针对大倾角煤层长壁炮采、落垛等采煤方法,存在回采率较低、员工劳动强度大、高产高效受限及安全等诸多问题,开滦(集团)赵各庄矿业分公司在探讨大倾角煤层采煤工艺的改革及实践大倾角煤层综合机械化采煤过程中,取得了较好的社会经济效益。收藏指正
3.LP Series chain crusher apply to fertilizer production in the block of broken, but also widely used in chemical industry, building materials, mining and other industries, aircraft used in the process of crushing the synchronous speed high-intensity resistance Mo Carbide chain plate , I expected out of rational design, materials uniform broken, it is not easy Nien wall to facilitate cleaning.
LP系列链式破碎机适用于复合肥生产中块状物的破碎，同时也广泛用于化工、建材、矿山等行业，该机在粉碎过程中采用同步转速的高强度耐?硬质合金链板，进出料口设计合理，破碎物料均匀，不易粘壁，便于清理。收藏指正
4.The manganese separation with DPMS drum permanent high intensity magnetic separator of ChangSha Research Institute of mining and metallurgy proves that when the size of ore is -6 mm, the manganese grade of manual mineral separation can increase 4%～8%, with 90% of recovery rate;
经长沙矿冶研究院DPMS永磁强磁选机一次磁选试验证实 ,在给矿粒级 - 6mm时 ,可将手选锰矿品位提高 4～ 8个百分点 ,锰回收率 90 % ;收藏指正
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