Table of Content

15 February 2013, Volume 29 Issue 02

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Mineral Resources Consumption and Economic Society Development in China

FAN Zhen-Lin

2013, 29(02):  1-4. 

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Mineral resources are important material base for human living and economic society development. Industrialization process of China is dependenting more and more stronger on mineral resources. General rule of relation between mineral resources and economic society development is summarized, through the research on demand intensity to mineral resources at different stage of China econimic society development, conclusion of base on our country, enhance supply capability of mineral resources, strengthen sustainable development and utilization are inevitable choice for future development are obtained.

Consideration of Accelerate Development of Gold Industry in Jilin Province

CHEN Ji-Jun

2013, 29(02):  5-8. 

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History and current development situation of gold industry in Jilin province are summarized, advantages of gold industry and its latent future development in Jilin province and main problems existing in gold industry of Jilin province currently are pointed out, suggestions and comments of accelerate the development of gold industry of Jilin province are proposed.

Compare and Analysis on Two Kinds of Mining Method of Gentle Dip and Medium Thickness Orebody

WANG Yan

2013, 29(02):  9-11+15. 

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Base on the specific deposit mining technical conditions of Zhaojin Baiyun Gold Mine in Liaoning province, shrinkage and full advance method and sublevel open stope method both could adopted. Technical and economic analysis is done on advantages and disadvantages, application conditions, economic beneifts of these two kinds of mining method, researching a more suitable mining method to reach the mining purpose of safe, efficient and economic, provides technical supports for improve production capacity of enterprise and meetdevelopment requirements of reconstruction and extension projects.

Compare and Analysis on Two Kinds of Mining Method of Gentle Dip and Medium Thickness Orebody

ZHANG Jin-Jun, SHI Fa-Wu, LIU Xiao-Hui, WANG Yi-Ming, HU Wen-Da

2013, 29(02):  12-15. 

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Base on the specific deposit mining technical conditions of Zhaojin Baiyun Gold Mine in Liaoning province, shrinkage and full advance method and sublevel open stope method both could adopted. Technical and economic analysis is done on advantages and disadvantages, application conditions, economic beneifts of these two kinds of mining method, researching a more suitable mining method to reach the mining purpose of safe, efficient and economic, provides technical supports for improve production capacity of enterprise and meetdevelopment requirements of reconstruction and extension projects.

Engineering Practice of Safety Tailings Stoping

ZHAO Wu-Kun, XU Qi-Ming, WANG Jie, ZHANG Chun

2013, 29(02):  16-19. 

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Reclamation of solid wastes of mine has become strategic objective of development of mine. Taking a mine as a the example, stoping plan of tailings is introduced emphatically, stability of dam body during stoping and safety coefficient of slope of mining pit are calculated, waterproof and drainage measures are proposed,provides engineering practice experience for safety stoping of tailings.

Discussion on Same Flow Production of High Sulphur Concentrate and General Sulphur Concentrate

XU Zhi-Ming, WANG Chao, ZHANG Jian-Chao, RUI Kai

2013, 29(02):  20-21. 

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To increase the market competition and added value of products of Nanjing Yinmao Lead and Zinc Ore, company used current sulfur flotation technique equipments, product optimization upgrades were done, previous sulfur flotation flow of one time rough concentration and two times scavenging reformed to one time rough concentration and two times scavenging two times regrade, single general sulphur concentrate products developed to high sulphur concentrate plus general sulphur concentrate. Production practice indicated,under the condition of sulfur grade of milling ore could compare,effects of concentrate quality and recovery rate both increasing were obtained.

Study on Waste Liquid Return Process in Bacterial Oxidation of Low-sulfur Hard-handle Gold Concentrates

HUANG Ling

2013, 29(02):  22-24. 

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There are many advantages of bacterial oxidation pretreatment technology of arsenic-containing gold ore comparing with other methods, but adequate sulfur is needed in ore in bacterial oxidation pretreatment of this kind of ore.Taking low-sulfur Hatu Gold Concentrates as an example, possibilities of resolve problem of low sulfur content in ore by adopting waste return process are discussed.

Experimental Study on Cyanide Leaching to Tailings after Gravity Separation

ZHAO Li-Zhi, REN Guo-Yi, DONG Ming-Li, HU Shu-Wei

2013, 29(02):  25-26+30. 

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To realize the maximization of economic benefits of mine, study of gravity separation-carbon-in-pulp gold extraction process replaced gravity separation-flotation gold extraction process was carried out in Erdaogou Gold Industry Co.,Ltd, technology conditions of cyanide leaching were confirmed, results of industrial test which organized according with test parameters indicates, conclusion of test in laboratory is reliable and could be the basis for change of productive practice.

Study on Technical Mineralogy of a Polymetallic Sulphide Ore Abroad

ZHANG Mei-Ge

2013, 29(02):  27-30. 

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Analysis was done on ore composition, texture and structure, embedding feature and single liberation degree of main minerals of a polymetallic sulphide ore abroad. The results indicates, the mineral belongs to a complex and refractory polymetallic sulphide ore, useful minerals are mainly sphalerite, chalcopyrite and pyrite, gangue minerals are mainly quartz and so on, content of useful minerals is high, disseminated grain size is fine, encapsulated with each other and is difficult to separate, suitable fine grinding degree needs beneficiability tests to confirm.

Comprehensive Management of High Slope Dump and Monitoring

XIE Xin-Ping, CHEN Jing-Jing, ZHAO Bo-Shen

2013, 29(02):  31-34. 

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Safety disposal and daily monitoring of high slope dump are a important part in mine management and directly relate to secure and orderly production of open-pit mining, so it's very important to establishing and perfecting the management system of safety production of dump.Dabaoshan 757 dump had characteristics like steep,high,dangerous, wet and slippery and so on, scientific monitoring and analysis were done aim at the main factors (subsidence,displacement,crack and other hypurgia)which influence the safety of dump, overall planning arrangement was done on operation management process. So the safety of construction of dump could assured, benign pattern of substep dumping realized. Provided valuable reference for similar projects in the future.

Parameters Optimization and Results Analysis of Survey of Ventilation Resistance of Yanbei Coal Mine

ZHANG Yun-Feng, XIA Tong-Qiang, YANG Lei

2013, 29(02):  35-38+106. 

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Survey of ventilation resistance of Yanbei Coal Mine was done based on air-gauge base point mensuration and the evaluated error was less than 5%, meanwhile, optimization of parameters of residual leveling was done by adopted visual mine ventilation network solution software which based on WINDOWS, to improve reliability of parameters, provided scientific basis for ventilation network optimization after later mine mining.Results showed ventilation difficult degree of Yanbei mine was easy; but ventilation system of mine was considered at subhealth state based on analysis and evaluation of practical overall ventilation state. Analysis was done on problems existing in mine ventilation system and corresponding countermeasures were proposed.

Research of Impact of Pore Water Pressure to Characteristic of Coal in the Front of Working Face

SANG Pei-Miao

2013, 29(02):  39-42+112. 

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To study the impact of water injection pressure to soft coal characteristic, impacts of pore water pressure generated by different water injection pressure to vertical stress, horizontal stress, compression ratio of coal seam, plastic zone of coal body in front of working face were simulated and analyzed by using FLAC3D finite difference program, influence rules of pore water pressure to charactersitcs of coal body were obtained, it can be seen, increase water injection pressure appropriately is benefit for the stable of coal wall.