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: Depending upon the polluted features of various mining activities in a typical nonferrous metal mine, the contaminated soil area was divided into four zones which were polluted by tailings, mine... process exposes different characteristics. So it is not rational to do the research generally to get information of heavy metal pollution. In this work, a Zn-Pb mine in Hunan Province, China......
Three-dimensional simulation of sintering crunodes of metal powders or fibers by level set methodCHEN Dong-dong(谌东东)1, ZHENG Zhou-shun(郑洲顺)1, WANG Jian-zhong(王建忠)2, TANG Hui-ping(汤慧萍)2, QU Xuan-hui(曲选辉)3(1. School of Mathematics and Statistics, Central South University, Changsha 410083, China;2. State Key Laboratory of Porous Metal Materials (Northwest Institute for Nonferrous Metal Research),Xi......
Sphericizing metal powders by mechanical means WANG Fu-xiang(王富祥), GAI Guo-sheng(盖国胜), YANG Yu-fen(杨玉芬) Key Laboratory for Advanced Materials of Ministry of Education, Department of Materials... shaped metal powders were impacted and sphericized by using high speed airflow impact method particles composite system(PCS). The optimum technological parameters for the metal powders processed were......
Improvement of Drill Performance in Metal Cutting Using MoST Solid Lubricant Coatings S. Hickman1,N.R. Thomas1,D.G. Teer1,S. Yang1 (1.Teer Coatings Ltd., West Stone House, West Stone, Berry Hill Industrial Estate, Droitwich, WR9 9AS, UK) 摘要:Coated tools are widely used in today''s metal cutting industries and have significantly improved machining productivity through reducing operation costs......
water. The results show that the mechanism of mine acidic waste water treatment by high density sludge (HDS) can be elucidated as the following aspects: acid-alkali neutralizing, metal ions sediment..., 2009(1): 131-134.YANG Qun, NING Ping, CHEN Fang-yuan, ZHAO Tian-liang. Status quo and prospect of the treatment technology for acid mine drainage[J]. Metal Mine, 2009(1): 131-134. [4] AKCIL A, KOLDAS......
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J. Cent. South Univ. Technol. (2008) 15: 224-229 DOI: 10.1007/s11771-008-0043-6 Chaotic time series prediction for surrounding rock’s deformation of deep mine lanes in soft rock LI Xi-bing(李夕兵... Engineering, Henan Polytechnic University, Jiaozuo 454150, China; 3. Guizhou Kaiyang Phosphor Mine Group Co., Guiyang 532000, China) ......
research on flotation of hemimorphite ore [J]. Metal Mine, 2008, 379(1): 67-69, 120. (in Chinese) [2] ALETAN G. Ammonia leaching of oxidized lead-zinc ores of Iran [J]. Geol Survey of Iran, 1969, 15: 19-66... Trans. Nonferrous Met. Soc. China 22(2012) 694-699 Preparation of metal zinc from hemimorphite by vacuum carbothermic reduction with CaF2 as catalyst XIONG Li-zhi1, 2, CHEN Qi-yuan1, YIN Zhou-lan1......
Removal of SO42-, uranium and other heavy metal ions from simulated solution by sulfate reducing bacteria WANG Qing-liang(王清良)1, 2, DING De-xin(丁德馨)2, HU E-ming(胡鄂明)2, YU RUN-lan... geochemical environment for groundwater is changed since leachant is injected into the water bearing uranium deposit. This increases the concentration of SO42-, uranium and other heavy metal ions......
exhaust is the most ideal. Key words: mine ventilation; excavation roadway; numerical simulation; dust 随着矿山地下开采深度的下延以及采掘机械化的普遍应用,井下生产面临的粉尘污染问题也越来越严峻[1].对此,许多矿山采取了多种方法和手段来降低掘进巷道内爆破开凿产生的粉尘,主要包括采用混合式局部通风,加大掘进... and practice of cooling technology in Woxi Pithead kilometer deep mine[J]. Gold Science and Technology, 2016, 24(3): 81-86. [2] 蒋仲安, 金龙哲, 袁绪忠, 等. 掘进巷道中粉尘分布规律的实验研究[J]. 煤炭科学技术, 2001, 29(3): 43-45. JIANG......
