Table of Content

15 April 2016, Volume 31 Issue 4

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Research on semi-continuous system shift scheme in Zhahanao'er Open-pit Mine

WANG Dongxu

2016, 31(4):  1-3. 

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Abstract: Through comparatively researching two kinds of shift schemes of semi-continuous system in Zhahanao'er Open-pit Mine, the mine rationally distributes semi-continuous dumping system and single bucket truck operation area, which increases effective internal dumping space, reduces production cost and improves economic benefit.

Medium and long term production planning establishment in Pingshuo East Open-pit Mine

LIU Guo, LU Qingchao, SI Wanyou

2016, 31(4):  4-7. 

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Abstract: From the start of land requisition, balanced production stripping ratio, equipment capacity, transportation system layout, the internal factors and the overall development planning of the company, coal market environment , the author analyzes some factors that need to be considered in the establishment process, and obtains the feasible production planning in technology.

Application of transverse section mining in Muyin Open-pit Coal Mine

GU Cunlei, LIU Tianyi

2016, 31(4):  8-10. 

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Abstract: Through adopting transverse layout to mine working face, the mine avoids the hidden danger of inadequate safe distance among equipments. According to specific hydrogeological conditions, the mine adopts new technology construction method to improve the quality of road maintenance and trucks running efficiency, which reduces the stripping and transportation costs and has good economic benefit.

Research on thin coal seam mining technology in Open-pit Coal Mine

GUO Jianqiao

2016, 31(4):  11-13. 

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Abstract: Taking thin coal seam mining for example in the large open-pit coal mine, the article presents three kinds of feasible mining technology. On the basis of comparing the technology economy of the schemes, the mines establishes the gray math model, carries out optimization choice on the schemes, and finally determines thin coal seam mining adopting open-pit mining machine- front loader-truck mining technology. The mine uses the calculating formula of mining and transportation equipment production capacity to calculate equipment number.

Research on adjacent end slope pressing coal cooperative mining in open-pit coal mine

HE Yongjun，ZHANG Hong

2016, 31(4):  14-17. 

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Abstract: Through analyzing the present mining condition of Baiyinhua No. 1 and No. 2 Open-pit Coal Mine, the article researches the adjacent end slope pressing coal cooperative mining scheme from the technical and economic view, which provides scientific basis for smoothly implementing the project.

Analysis on equipment domestic production of large open-pit and underground mining

BIAN Yong, LI Jianmin

2016, 31(4):  18-20. 

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Abstract: Taking large open-pit and underground mining Pingshuo company for example, the article introduces large equipment and domestic production condition according to open-pit and underground mining , presents the development direction of domestic production, and summarizes the existing problems in domestic production development, which has reference for domestic production development work in Pingshuo company.

Research on increased capacity stability in Antaibao Mine Nansigou dump

YANG Xiu, WANG Zhe, HAN Ying, WANG Chanyuan, WANG Chong

2016, 31(4):  21-25. 

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Abstract：The article analyzed the factors of affecting slope stability in Nansigou dump，and carried out numerical simulation on the landslide mode of slope. Based on the results of ultimate bearing capacity, the author carried out optimization research on dump slope, and obtained the technical parameters and dumping parameters of Nansigou dump under the premise of ensuring the slope stability.

Effect of mining area sector steering on production in Yimin Open-pit Mine

LI Yueqiang, CAI Baojia, WU Hongyang

2016, 31(4):  26-28. 

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Abstract：Combining with the actual production of Yimin Open-pit Mine, the mine divided sector steering into three nodes and two processes. The article elaborates the effect of sector steering on mining, dumping and production continues, and presents the different solving methods.

Application and development of green mining technology in Open-pit Mine

SHU Yingqiu, PAN Bo

2016, 31(4):  29-31. 

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Abstract: From the start of open-pit mine mining history, the author analyzed the development and existing problem of mining technology in open-pit mine.  Combining with the status of green mining technology both at home and abroad open-pit mine,  the article analyzed the economy and environmental protection comparison between green mining technology and traditional shovel-truck technology, pointed out that the renovation of traditional mining technology and green mining technology  application would bring great benefit for the enterprise and society.

Design of slope automatic monitoring system in the open-pit coal mine

GE Zhonghe

2016, 31(4):  32-35. 

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Abstract： This article mainly discusses the structure of slope monitoring automatic system in the open-pit coal mine, the configuration of the sub system, the choice of monitoring instrument, the design standard and the basic functional requirements, and the slope monitoring system for power distribution, lightning protection, grounding design considerations.

Mechanical characteristics and deformation law of composite slope in open-pit mine

XU Kun

2016, 31(4):  36-39. 

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Abstract: The article researches the stress and displacement law in the process of composite slope form in Harwusu Open-pit Mine, and obtains the conclusion that the displacement of slope surface increases with depth increasing in excavation process; the subsidence displacement decreases with the dump center distance increasing in stack process; under the effect of excavation and stack, the surface displacement changes in engineering area.

Research on goaf roof rock safety thickness in Pingshuo East Open-pit Mine

ZHAO Dengjuan, FU Xinhua, XU Jun

2016, 31(4):  40-44. 

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Abstract: By analyzing the mechanics index of rock in East Open-pit Mine, the article analyzed the different span goaf with the discrete element numerical simulation software UDEC, obtained the safety thickness of roof rock in the corresponding span and the formula that had small difference with roof rock safety thickness.

Feasibility analysis on the application of bucket wheel excavator in Baiyinhua No.1 Mine

YAO Yong, WANG Jianguang

2016, 31(4):  45-48. 

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Abstract: The article analyzed some problems of the present hired mining equipments in Baiyinhua No.1 Open-pit Mine, put forward adopting the DWY1500 full hydraulic bucket wheel excavator to mine coal. From the demonstrations of technical feasibility, economic rationality and safety reliability, this article concluded that it was feasible to apply the hired DWY1500 full hydraulic bucket wheel excavator in Baiyinhua No.1 Open-pit Mine.

Research on mining area division and mining scheme in Hesigewula Open-pit Coal Mine

YANG Lingjie, SHEN Wei, WANG Jiadong

2016, 31(4):  49-52. 

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Abstract: According to the coal seams occurrence conditions in Hesigewula Open-pit Coal Mine, the article researches the mining area division and mining sequence scheme. Through comparing the technical index, such as the external dumping volume, internal dumping time development, mining schedule, dumping schedule, the second stripping amount, internal dumping stripping truck transportation system, internal dumping transportation distance and mining area transition, the author finally chooses the trend mining scheme.

Implementing "peak hide" to decrease cost and increase benefit in open-pit coal mine

WANG Chenguang

2016, 31(4):  53-55. 

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Abstract: Combining the actual production conditions of Yuanbaoshan Open-pit Coal Minev, the mine implements "peak hide" and the policy of energy conservation and emissions reduction, reasonably arranges work time and saves electricity costs. During the peak hide, the mine strengthens the equipment maintenance, maintenance, and ensures the working efficiency, which reduces operating costs and improves production benefit.

Application of video monitoring system in the DM series drill

WEI Jianxiong, DONG Xin

2016, 31(4):  56-58. 

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Abstract: In the process of production site application, the unloading drill operation and orifice operation of DM series drill exist visual dead angle, which cause maintenance staff and operators not smoothly to carry out equipment operation and maintenance work. The author presents the scheme of installing application video monitoring system and elaborates the application effect.

Analysis and elimination of C27 engine high temperature alarm fault

LU Ran

2016, 31(4):  59-61. 

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Abstract: The D10T track-type tractor C27 ACERT engine emerges high temperature fault alarm in the process of work. According to the principle diagram analysis of the equipment hydraulic fan drive system, the fault point is caused by the fan pump pressure control solenoid lock.

Optimization of mine heavy truck hydraulic system oil leakage prevention

WANG Jingjing

2016, 31(4):  62-64. 

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Abstract: For heavy trucks frequently emerging the hydraulic system faults, the article analyzes the problems of oil appearing different degree loss which greatly causes cost waste. The mine designs the anti-leakage device, which effectively reduces the oil leakage amount of hydraulic system.

Space curved belt conveyor turning radius calculation

JIANG Tianyang

2016, 31(4):  65-69. 

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Abstract: The article introduces the force equilibrium condition in space curved belt conveyor bend. Using the centripetal force caused by establishing turning belt tension and equilibrium equations of guidance force, the author derives more accurate design formula of curvature, which has strong guidance for practical engineering application.

Driving platform reinforcement design in Anjialing Coal Mine

LIU Jiankang, FU Qingwang

2016, 31(4):  70-72. 

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Abstract：Through the method of increasing the driving platform lateral stiffness to eliminate the sloshing phenomenon of driving platform; by adding fulcrum method at the bottom of the beam of vibration equipment to change the natural frequencies of the structure, it can avoid the resonance region and eliminate the continuous tremors phenomenon of the driving platform. After the project is put into use, the reinforcement effect is good.

Research on GPS production scheduling system real-time monitoring method in Open-pit Mine

HE Shuai

2016, 31(4):  73-75. 

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Abstract: Combining with the constitution of GPS production scheduling system, the article introduces the real-time monitoring method, including 2D display, production control simulation and 3D display, which reflect real-time operation condition of equipment and make dispatchers be able to stay at home to monitor all equipment and improve the monitoring function and production efficiency.

Failure analysis of L-950 wheel loader Holzer pedal

CHEN Nannan, ZHAO Jie, JIA Jun, GAO Jinrong, WANG Dongfei

2016, 31(4):  76-78. 

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Abstract: L-950 wheel loader has the characteristics of less failure, good flexibility, complex repair process. The article analyzes "accelerated pedal Holzer fault" of loader frequent red serious alarm, and presents the effective solutions.

Research on manure improving mine humus soil in Open-pit Coal Mine

LI Wenchao, LI Ji, LI Xiyao, WEI Jinfa, WANG Xixian, ZHANG Qiang

2016, 31(4):  79-80. 

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Abstract: This article presents a set effective scheme of manure improving humus soil in Yimin Open-pit Mine. Through purchasing manure, composting, similar to "sandwich" cover soil to improve soil, the mine solves the shortage problems of humus soil in open-pit coal mine dump greening, which has great significance on improving the mine reclamation greening efficiency.

 

Research on fire prevention methods in Yimin Open-pit Mine

CHANG Yunlong, LI Yueqiang,SHU Yingqiu

2016, 31(4):  81-83. 

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Abstract： According to the actual production experience, the author summed up two kinds of cases of the coal ignition burning. According to the different conditions, different location of coal combustion, the article presents the targeted different processing methods, in order to achieve the goals of increasing the safety production in coal mine and reducing the economic loss.

Research status and progress of arsenic removal from water

GAO Qiuping, BAI Yu

2016, 31(4):  84-86. 

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Abstract: The article summarizes the removal methods of arsenic in water, such as precipitation method, biological method, adsorption method. People pay attention to adsorption method because of its operation simple and significant adsorption effect. In nature, many substances can be used as adsorption materials, which are cheap and can be used for the second time.

Risk source identification and risk assessment in coal mining enterprises team

WANG Junwen

2016, 31(4):  87-89. 

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Abstract： Team security management has become the most important issue faced by coal mine enterprise. According to the problems in coal mine enterprise team hazard identification and risk assessment, the article presents the specific proposals and measures.

Improving the recovery efficiency of oil shale retorting device

WANG Na, MA Guoming

2016, 31(4):  90-92. 

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Abstract: The article introduces technology process and main equipment of dry distillation device recovery system, analyzes the effect of each equipment on tar recovery, presents the method of improving recycling efficiency. The author analyzes and introduces the technology characteristics and presents the reform suggestions.

Effect of technology innovation on reducing cost and improving efficiency in enterprises safety production

SONG Ri

2016, 31(4):  93-96. 

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Abstract: Taking Shenhua Zhunge'er Energy Company explosive factory as an example, the article discusses that the factory carries out technology innovation activity, which plays the guarantee role for their own security production, contributes to the production operation and reducing cost and improving efficiency, and reflects the importance of technology innovation in coal enterprise sustainable development.