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主管主办： 中钢集团马鞍山矿山研究总院股份有限公司
协办单位：中国冶金矿山企业协会
金属矿产资源高效循环利用国家工程研究中心
金属矿山安全与健康国家重点实验室
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中文
Table of Content
20 November 2010, Volume 26 Issue 11
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Research on Reserves Estimation of Jiajiabao Iron Ore based on 3DMine
Liu-Bo, CHEN Guang-Ping
2010, 26(11): 1-4.
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Based on the geologic database of Jiajiabao, 3DMine software was used to combine samples and analyzed them by geological statistics. According to analyzed ore grade spatial variation, inverse distance squares method and ordinary Kriging method were used to make grade estimation for block model, then orebody resources reports were formed respectively. Two results of reserves calculation were compared, and application in resources management and mining design were discussed.
Stability Analysis on Different Spans of Sublevel Room of Mediumlength Hole in Maluping Mine
Chen-Tian-Yun-1, HE Zhong-Guo-1, GUO Zi-Yuan-2, PENG Kang-2, HE Feng-Jian-2, LIU Zhi-Xiang-2
2010, 26(11): 5-7.
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Maluping mine is a high quality sources of raw materials which could produce highconcentration phosphate fertilizer directly without ore dressing, and it is rare in the world and the only one in China currently. Invein preparatory work mediumlength hole falling ore afterwards filling mining method was adopted. Through FLAC3D finite difference software, numerical calculation result such as characteristic of displacement and deformation, maximum principal stress of roof, roof vertical stress distribution, plastic zone distribution of stope of different mining spans of sublevel stope , reasonable stope span is 20m is obtained.
Application Study on Mine Tunnel Modeling Algorithm based on OpenGL
HAO Chang-Sheng, SUN Bao-Lei, WANG Rui-Zhi, ZHOU Lian-Chun, FANG Zhong-Chun
2010, 26(11): 8-10.
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Problems occurred when using OpenGL to make threedimensional modeling of mine turning tunnel and spatial distribution law of points on surface of turning tunnel are analyzed. A simple algorithm could realize turning tunnel threedimensional simulation is put forward, so the threedimensional model of mine tunnel could set up conveniently and rapidly.
Finite Element Displacement Back Analysis on Deformation and Viscoelasticity of Surrounding Rock Mass of Jinshandian's Iron Ore and Powder Ore
CHEN Jin-Ping, SHENG Jian-Long
2010, 26(11): 11-14.
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According to the characteristics of elastic deformation during instantaneous loading and creep deformation tends to convergence changing with time which surrounding rock mass of Jinshandian's iron ore and powder ore have, reference to displacementtime curve obtained by field monitoring, chose PoytingThomson constitutive model, using finite element displacement analysis, integrated elasticmodulus which include viscoelastic parameters was obtained, consider affect of excavation steps to surrounding rock mass deformation. Elastic modulus E1, E2, viscosity coefficient η had separated after made regression of integrated elasticmodulus, using these parameters into similar deformation prediction of powder ore tunnel, it could predict deformation amount and deformation stability time at different time of this surrounding rock mass.
Study on Mineral Processing Technology of a Lowgrade Iron Ore
Liu-Gui-Qing-1, ZHAO Yun-Huan-1, QIU Jun-2, 吕Xian-Jun-2
2010, 26(11): 14-16.
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Washability experimental research was done on a lowgrade magnetic iron ore, research result indicates, this ore belongs to coarse grain disseminated lowgrade magnetic iron ore, staged grinding technology could realize energysaving and emissionreduction, cost decreasing and effect increasing effectively. Suitable grinding fineness is -200 mesh content of the first and secondary stage ore grinding product take 60% and 85% separately; magnetic density of rough concentration and ore concentrate both are 120 kA/m。Finally iron grade of ore concentrate reached to 66.58%，recovery rate reached to 81.34%，a good beneficiation technical indicators were obtained.
Experimental Study on Mineral Processing of a Cyanide Tailings in Xinjiang
GOU Yan-Wei, WANG Feng-Shui, ZHU Guo-Qing, LIN Jun-Ling, CHANG Mu-Yuan
2010, 26(11): 17-20.
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Based on the mineral properties of a cyanide tailings in Xinjiang, test on choice and dosage of agent like inhibitor, activating agent, collector, etc in prior separation flotation of copper and zinc, opencircuit whole process and closedcircuit test were done. The result indicated: one roughing, one scavenging, three reconcentrate, priority in turn flotation technology of copper and zinc of middling sequence recurrence, could better recovered copper, zinc and quantities of gold and silver. Copper concentrate with copper grade 16.88% and recovery rate 79.70%,gold recovery rate 34.97%,silver recovery rate 33.07% and zinc concentrate with zinc grade 52.07% and recovery rate 63.77% were obtained, twice recovery of mineral resources were realized.
Experimental Study of Ion Exchange and Neutralization on Acid in Situ Leach Uranium Mining Wastewater
Cai-Ping-Li-1, TAN Kai-Xuan-2, SHI Wen-Ge-2, HU E-Ming-2, HUANG Ai-Wu-2
2010, 26(11): 21-22.
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Experimental study of strong basic anion exchange resin adsorption removing uranium and limestone eliminate removing uranium tail liquid acid were done on groundwater which polluted by acid in situ leach uranium mining mine radioactivity, the result indicated, indexes of ph value、V and TFe came up to or almost to the permissible criteria of Ⅳ class groundwater of groundwater through two-stage treatment, indexes of Eh、U、Al came up to range of background value.
Research on Valuable Elements Recovery from a Cassiterite Tailings of Bolivia
SHANG Yan-Bo
2010, 26(11): 23-25.
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Experimental study of valuable elements recovery was done on a gravity separation tin separation tailings which has high content of sulfur, silver and tin in Bolivia, recovery technology of tin, sulfur and silver which took the flotation main, roastingcyanide as subsidiary was confirmed. Sulfur concentrate with sulfur grade 46.70%, recovery rate 97.88%, silver grade 339 g/t,recovery rate 73.73％ and tin concentrate with tin grade 45.37%, recovery rate 52.73％ were obtained through closed-circuit test, leaching rate of roastingcyanide operation of silver was 75.10%.
Measures and Countermeasures to make the Quality of Concentrate of Washan Dressing Plant Stable
AN Tai-Ping, HUANG Ying-Cai
2010, 26(11): 26-27.
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Significant changes of chosen ore properties are the basic reason of concentrate quality unqualified of Washan dressing plant, point out middling regrinding ability deficiency and product size not controlled strictly, size of product of three stage magnetic concentrate screening classification is over thick, high frequency vibrating fine screen screening efficiency is low are the basic reason of cause the quality of concentrate not high, improvement scheme of strength secondary grinding ,increase three stage grinding, use Drake fine screen as preexamination screening of threestage grinding is proposed purposefully.
Fluid Mechanics Analysis and Velocity Calculation of Filling Slurry Pipeline Transportation
LIU Xing-De, CHEN Xiao-Yang
2010, 26(11): 28-31.
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With the development of society and the progress of science and technology, filling mining method has gradually become the main mining method on metal deposits in underground mining. There are several kinds of filling methods such as hydraulic filling, high density filling, paste filling and so on. Motion state and rheological characteristics of filling slurry in filling pipeline transportation are analyzed, and several calculation formulas of critical velocity about slurry pipeline transport are introduced.
Application of Analytic Hierarchy Process in Ventilation System Optimization
HUANG Bin
2010, 26(11): 32-34.
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Through the analysis of main factors which influence the ventilation system choice, hierarchical evaluation model of multilevel on ventilation scheme choice was established. Weight value of each scheme was confirmed by analytic hierarchy process, optimal scheme was obtained, and consistency check was made. Through the practical application in ventilation scheme optimization selection of a mine, it proves that this result is realiable.
Analysis on Prediction Method Utilization of Outburst Risk of Pingdingshan Coal Mine No.12
HONG Yi-Du
2010, 26(11): 35-37.
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Take Pingdingshan coal mine No.12 as an example. The prediction data and experimental achievements of previous coal road digging of this mine are analyzed. The application situation of coal powder quantity of bore index and gas inrush initial velocity are pointed out, and sensitivity of these two indexes are also analyzed.
Quality Classification and Mechanical Parameters Confirmation of Slope Engineering Rock Mass based on RMR and BQ Methods
YUAN Shi-Lin-1, YANG Jiu-Lin-1, KANG Zhi-Qiang-2, 3
2010, 26(11): 38-40.
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Based on field exploration data and laboratory test data, comprehensively considered construction property and other factors of slope engineering, quality classification and evaluation were done on engineering rock mass of mine slope by adopted RMR and BQ methods, strength range of each rock mass of mining area were confirmed comprehensively. The example analysis indicates comprehensive forecasting method could predict hierarchical problem of rock slope quality more scientific, and it also can provide more reliable basis for adopt economical and reasonable support treatments.
