Table of Content

15 August 2016, Volume 31 Issue 8

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Relevant factors analysis of semi-continuous technique with semi-mobile crushing station

LIU Yinglu

2016, 31(8):  1-4. 

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Abstract: According to the development requirement of key equipment in large open- pit mine, the author analyzes all working factors of semi-continuous technique with semi-mobile crushing station taking stripping system for example, and provides necessary technique basis for researching key equipments in semi-continuous technique system.

Application of combined bench mining technology in Ha'erwusu Open-pit Mine

LIU Yu, LIN Xu

2016, 31(8):  5-8. 

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Abstract: Based on theoretical analysis of combined bench in open-pit mine, the author defined the significance of implementing the combined bench mining, determined the parameters of combined bench mining. The mine compared the effects of different programs on open-pit mine production, which provided reference for the implementation of combined bench mining.

Design comparison and selection of transportation line of long distance belt conveyor in the mining area

TIAN Tian

2016, 31(8):  9-11. 

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Abstract: Through comparing and selecting long distance belt conveyor transportation line in the mining area, this article introduces the general principles of route selection and process layout of the belt conveyor, which has certain reference significance for the design of belt conveyor transportation lines.

Underground hydrogeological conditions and drainage in Thar Ⅵ block coal field

YU Mingguang, ZHANG Zhongxin, ZHAO Weihe, DENG Juemei, MAO Xiaoni, XIONG Yuqiang, GENG Lingpeng

2016, 31(8):  12-15. 

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Abstract： According to rock physical and mechanical properties and hydro geological conditions, adopting pre-drainage project, the project lowers water level and water pressure of aquifer in advance, and avoids mining operation stagnation caused by water inflow in stope, which effectively reduces the effect of aquifer on slope stability and Water pressure of aquifer.

Study on coal transportation system scheme under the affect of land acquisition in open-pit mine

ZHANG Liang, MA Li, NIU Jingfu, YANG Yang, GAO Fu qiang, LIU Yueting

2016, 31(8):  16-19. 

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Abstract: According to stope coal transportation system layout difficulty, coal mining operation face delay, internal dumping tension situation in Haerwusu Open-pit Coal Mine, the article presents coal transportation system change into internal dump, and analyzes shift scheme of internal dump coal transportation system. The author presents the raw coal transportation system shift scheme under the affect of land acquisition, which temporarily alleviates the difficult situation of production under the pit.

Application of 3S technology in Heishan Open-pit Coal Mine

LIN Lin

2016, 31(8):  20-22. 

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Abstract： This article introduces the 3S technology in detail, including remote sensing technology (RS), global positioning system (GPS) and geographic information system (GIS). Through careful investigation and study on Heishan Open-pit Coal Mine, integrating mining area actual situation, the mine applies 3S technology integration to Heishan Open-pit Coal Mine land reclamation work, which forms the system governance on mining area.

Analysis of perforation blasting condition in Yimin Open-pit Mine

LI Yueqiang, DUAN Shuyi, LI Wei

2016, 31(8):  23-26. 

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Abstract： This article introduces the basic situation of winter blasting in Yimin Open-pit Mine and the general method of blasting effect evaluation. The author explains the general relation between the drilling efficiency and the rock properties by the method of statistical analysis, and gives the coordination of blasting and excavation. Combined with the production experience and theoretical research, the article lists several methods of reducing the cost of blasting.

Writing of soil and water conservation in open-pit coal mine feasibility research report

CHEN Dong

2016, 31(8):  27-29. 

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Abstract: In order to improve the soil and water conservation section to write and do open-pit coal mine soil and water conservation work, this article introduces the available practice from the project site selection, analysis and correction of construction scheme, the occupation and estimation of earth-rock, forecast of soil erosion, measures design and investment estimation.

Process and applicability analysis of DWY3000 type full hydraulic bucket-wheel excavator

LI Bo

2016, 31(8):  30-33. 

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Abstract: DWY3000 type full hydraulic bucket-wheel excavator can greatly reduce the number of single-bucket hydraulic backhoe excavator in mining project, which can significantly improve production efficiency of open-pit mining, reduce production cost and control the supplied coal particle size by cutting and breaking of wheel bucket excavator in the process of mining.

Improving the service life of 930E truck engine

BAI Bing

2016, 31(8):  34-36. 

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Abstract: The article analyzed the reasons of early damage of engine, and presented the corresponding measures from the use, maintenance and overhaul aspects of the engine, in order to improve the operating life of the engine.

Design of 700kN automatic tension testing machine

WANG Kai， ZOU Wei

2016, 31(8):  37-39. 

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Abstract: 700kN automatic tension testing machine is specialized for the scraper chain tension, tensile mechanical properties testing machine of the mechanical loading, whose structure principle is the use of mechatronics design.

Detection numerical simulation research on high density electrical method in goaf

XU Guiwa

2016, 31(8):  40-45. 

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Abstract： The author carries out numerical simulation on the typical goaf models using Res2dmod software. The results show that the detection accuracy not only involves with the goaf depth，the level of resistivity and the distance of the adjacent holes, but also relates to the type of detecting devices and the electrode distance. Through the numerical simulation of high density electrical method in the actual goaf, it proves that combining the numerical simulation technology with the field test results has good reference value for supplementary explaining and accurately determining the distribution of goaf.

Dispatching system control strategy research and application analysis based on GPS

SHI Haiping

2016, 31(8):  46-49. 

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Abstract： The article analyzes and researches the dispatching system based on GPS and combines with the system used in the open-pit mine to carry out application analysis, which can provide reference for improving safety production management level in other large open-pit mines.

Design and application of MT5500 truck brake contactor shunt protection device

JIN Xin, ZHAO Jie, LIU Zhijun, ZHANG Jing

2016, 31(8):  50-53. 

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Abstract: MT5500 truck uses dynamic braking mode to realize deceleration. A programmable controller PLC system is installed on the MT5500 truck, when the PLC system monitors the abnormal closure of contactor, the system forces other contact closure to play shunt protection role, which can make the brake contactor operation of MT5500 trucks more perfect and reasonable.

Study on anti-freezing adhesive in cold area coal storage bulkhead

CHEN Yu

2016, 31(8):  54-57. 

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Abstract： Through analyzing the mechanism of winter frozen sticky material in coal storage bulkhead, the article researches the anti-freezing adhesive material scheme in cold area lignite coal storage bulkhead, and demonstrates the merits and demerits of coal storage bulkhead. The author thinks that coal storage bulkhead insulation board combined with the inner wall of the embedded carbon fiber heating scheme is more scientific and reasonable for solving the frozen sticky materials in cold region coal storage bulkhead.

Safety Management Methods in Shenhua Shengli Energy Company

LIN Xiangyang

2016, 31(8):  58-60. 

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Abstract: Through analyzing the safety management mode in Shenhua Shengli Energy Company, the article systematically and comprehensively elaborates the experience and practice on safety management aspects in the company, which has far-reaching significance for safety management work of mining industry.

Reconstruction of boiler flue gas system in Shengli East No.2 Open-pit Mine industrial field

WANG Aiai

2016, 31(8):  61-64. 

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Abstract: According to the emission status of boiler room flue gas and boiler operation characteristics in Shengli East No.2 Open-pit Mine industrial field, the mine carries out reconstruction from desulphurization and denitration, dust removal three aspects in terms of the local environmental monitoring data and standard. According to the calculated efficiency and site area, investment and many other factors, the mine comprehensively chooses the suitable process and equipment of this project.

Emergency rescue system construction in Pingshuo East Open-pit Mine

LIU Guo

2016, 31(8):  65-67. 

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Abstract: Combining with East Open-pit Mine production reality, the article analyzed the landslide accident, flood accident, fire accident, goaf accident emergency rescue, presented the establishment of emergency rescue stereo system, in order to improve the level of rescue capability and ensure life and property safety.

Discussion on the value of heavy rain return period in mining area

HUANG Jinfen

2016, 31(8):  68-70. 

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Abstract: At present, the rainstorm return period values may vary from place to place all over the world. On the basis of various references, the article gives the return period value of flood control and drainage in mining area industrial plant and external road, which provides certain reference for drainage design in the project.

Analysis and control of staff unsafe behavior in Shengli No.1 Open-pit Mine

BAO Yongzhi

2016, 31(8):  71-74. 

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Abstract： Combining with the results of safety risk pre-control management system in Shengli No.1 Open-pit Mine, the article analyzes the staff working process, behavior frequency and unsafe behavior of risk level to people, presents the targeted management means combining with the daily safety management method and achieves the advanced control of staff unsafe behavior.

Water treatment engineering design in Madaokou Coal Mine

SHENG Shoufu

2016, 31(8):  75-78. 

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Abstract: The article introduces the comprehensive control of production wastewater in Madaokou Coal Mine, which takes water as coal washing water, underground water for cooling and dust prevention, drinking water, boiler water, etc. The mine comprehensively utilizes wastewater, and saves water resources, which not only conforms to the requirements of environmental protection, but also has a certain economic benefit and social significance.

Research on properties of new type dust suppressant and industry test

LIN Musong, LUO Ruidong, LUO Yunbai, DONG Jinfeng

2016, 31(8):  79-83. 

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Abstract: To characterize the properties of the dust suppressant, the author carried out evaluation on solidified effect, resistance to wind and rain properties of dust suppressant in indoor experiment and open-pit coal yard. The results showed that the dust suppressant had a high performance of properties, and a solidified layer formed after dust suppressant sprayed on the coal. The solidified layer had high hardness and an excellent windproof and waterproof performance.

Design scheme comparison of strip coal storage system based on three kinds of stacker reclaimer equipment

GAO Yuan

2016, 31(8):  84-87. 

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Abstract: This article introduces three kinds of stacker reclaimer equipments for strip coal yard--cantilever bucket-wheel stacker reclaimer; gantry bucket wheel stacker reclaimer; mobile discharge car stacker + gantry feed scraper. Combining with the design of an open pit mine in Pakistan, the author compares three design schemes of strip coal storage system.

Application and analysis of CFG pile composite foundation engineering

HE Zhipeng

2016, 31(8):  88-90. 

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Abstract: CFG pile and soil between piles and cushion together form CFG pile composite foundation. Taking the CFG pile composite foundation in the loading station of Inner Mongolia Baiyinhua No.1 open-pit coal mine for an example, this article introduces the detailed design of the project and analyzes the calculation of its bearing capacity and subsidence.

Thought of internet and information technology to promote the reform and development of coal enterprises

CHENG Cheng

2016, 31(8):  91-93. 

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Abstract: Aiming at the problems of traditional development mode, the article puts forward that coal enterprises use information technology to promote the old industrial chain and accomplish delicacy management. Simultaneously, the enterprises use the business model of "Internet plus Coal" to reduce coal trading hierarchy and improve service quality. Combining production, management, marketing of coal enterprises with internet and information technology, the author tries to discover a more efficient development mode and promote the structural reform of coal industry.

How to carry out the training work in workshop

WANG Junwen

2016, 31(8):  94-96. 

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Abstract： Training in human resources strategies is increasingly important. Training mode is also developed from single teaching and training to interactive, multimedia teaching, experiential teaching combination mixed training. The focus of management level on training is changed from the initial efficiency into more valuable efficiency.