Table of Content

15 October 2016, Volume 31 Issue 10

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Application of "wide" truck in Shengli East  No.2 Open-pit Coal Mine

XUE Yingjun

2016, 31(10):  1-3. 

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Abstract: Through collecting the data of  outsourced truck in Shengli East No.2 Open-pit Coal Mine, from the wide truck advantage, fuel consumption analysis, wide truck disadvantages three aspects, the article  comparatively analyzes the advantages and disadvantages of common mining "narrow" and "wide" truck, and presents the optimization suggestions for the development of mining wide truck.

Several problems of dumping plough application in modern open-pit mine stripping system

CHEN Dawei

2016, 31(10):  4-6. 

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Abstract: The article analyzes the present situation of dumping plough in modern open-pit mine stripping system from the aspects of dumping plough classification, main technical performance parameters. The author discusses the methods and steps of initial embankment construction and "dead end" treatment methods in dumping.

Rational analysis of single hole blasting in Fushun East Open-pit Mine

SUN Peng, LI Guibo

2016, 31(10):  7-9. 

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Abstract: According to the mining experience of the production process in Fushun East Open-pit Mine, the article summed up the blasting methods suitable for East Open-pit Mine geology and mining conditions. Through adjusting hole distance, row spacing, number of rows, the mine reduced unit consumption of blasting, controlled the occurrence of secondary blasting and blasting cost.

Feasibility research on the height increase of dump in Ha'erwusu Open-pit Mine

ZHOU Yongli

2016, 31(10):  10-13. 

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Abstract: In order to study the feasibility of height increase of the dump of Ha'erwusu Open-pit Mine, the mine carries out the supplement investigation for the engineering geology of dump basement, and determines the physical mechanics recommended indexes of the inner-dump slope rock mass. Using limit equilibrium principle to calculate the stability of the inner-dump slope at different stages, the article obtains the stability coefficients of four main positions, and researches the shame for the inner-dump height increasing combining with safety conditions.

Analysis on steep slope mining operation way in Sandaoling Open-pit Coal Mine

SUN Jinliang

2016, 31(10):  14-16. 

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Abstract: With the increase of mining depth and dip angle of coal seam, Sandaoling Open-pit Coal Mine adopts steep slope mining operation way and determines the steep slope operation way in open-pit coal mine. Combining with the actual situation of the open-pit coal mine, the article analyzes and determines the steep slope operation parameters, increases the working slope angle, reduces the production stripping ratio, and improves the economic benefit.

End slope pressed coal backstoping method for middle and small open-pit mines in Ordos area

TIAN Shukun

2016, 31(10):  17-19. 

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Abstract： Taking the middle and small open-pit coal mines in Ordos area as carriers, the article puts forward several kinds of methods of end slope pressed coal backstoping for the area in middle and small open-pit coal mines, so as to complete end slope pressed coal backstoping and improve the recovery rate of coal resources and increase the economic benefit of coal enterprises.

Analysis of slope early warning in Huolinghe mining area

CHAI Guoqiang, REN Guozhu

2016, 31(10):  20-24. 

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Abstract: Based on the geology condition and slope monitoring data of many years, the article carries out three grades early warning on deformation of slope in Huolinhe mining area. The author mainly discusses and analyzes the main slope monitoring location and the change rule influenced by the geological characteristics, rainfall and other factors. The mine combines with the actual slope position and makes early warning.

Orifices interval charge vibration effect and analysis in the Phosphate Mine

FU Xuehui, LI Jinyong

2016, 31(10):  25-27. 

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Abstract: Based on the orifices interval charge blasting technology, the article carried out the blasting vibration experimental study, and analyzed the vibration effect. The test results show that, compared with the conventional continuous charge, the amplitude of vibration reduction is obvious, the particle vibration velocity is small and the main vibration frequency is high. The interval charge blasting technique is more favorable for the protection of the surrounding buildings.

Modification optimization of 68 station in Fushun East Open- pit Mine

CHEN Jiwang, LU Bing, ZHANG Decang, MA Zhilong, SUN Kai

2016, 31(10):  28-30. 

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Abstract: Fushun East Open-pit Mine currently uses the way of railway development, mining technology for single bucket excavator railway mining technology. 63 station is large station yard in east open-pit mine, which moves northward about 80 meters following mining area, and sets up a large amount of engineering each shift. Therefore, 63 station long-term shift is very important.

Research on subsidence control technology in the coal mine mining area

FU Jia

2016, 31(10):  31-34. 

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Abstract:　Through the investigation and analysis of the mining subsidence in the large scale coal mine project, the article summarizes the control methods of the subsidence area in the mining area, formulates the reasonable subsidence area control measures and utilizes gangue produced by coal mine production and operation to carry out land reclamation in subsidence area, and researches on the coal mine control technology and the effect of rehabilitation.

Optimization of north slope mining boundary scheme in the first mining area of Liangjiaqi Open-pit Coal Mine

FAN Zhongsheng, HUANG Yuxi, WANG Peng

2016, 31(10):  35-38. 

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Abstract: Through the demonstration and analysis of the mining boundary in the first mining area of Liangjiaqi Open-pit Coal Mine, combining with the whole basic technical information, the article denies the original mining boundary. According to the principle of determining the open-pit mining boundary, the mine optimizes the existing mining boundary, and obtains the economic and reasonable mining boundary to guide field production operation.

830E dump truck PWM frequency speed system

GUO Junyi

2016, 31(10):  39-42. 

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Abstract: AC drive system has become the mainstream electronic control system of large mining dump trucks. This article analyzes the electric drive constitution, motor structure, PWM technology of 830E truck, the frequency speed system of truck, and illustrates the advantages and features of PWM inverter system.

Application of super capacitor in electric wheel dump truck starts

WANG Pengfei

2016, 31(10):  43-46. 

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Abstract: By calculating the starting current and starting torque in the starting process of the super capacitor and battery, the article obtained the starting power and the super capacitance of 630E electric-wheel truck, and gave the diagram of the super capacitor starting system of the electric wheel truck, which demonstrates the feasibility of super capacitor start by the experiment.

Improvement and design of WK35 shovel time integrating device

SUN Yanbin, WANG Qingxin, GAO Fangxin

2016, 31(10):  47-51. 

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Abstract: This article introduces the shortcoming of WK35 shovel time integrating device , proposes a method of improvement, and describes the design process and working principle of time integrating device.

Application of GPS monitoring technique in the slope monitoring of open-pit coal mine

LI Zenglin, WANG Xiaoliang, HAN Meng

2016, 31(10):  52-54. 

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Abstract: Taking the open-pit coal mine in eastern region of Inner Mongolia in China as an example, the mine grasped slope displacement and deformation condition in real time through establishing GPS automatic monitoring system of slope displacement, and successfully forecasted the occurrence of potential landslide accident by warning system of slope monitoring. By the analysis of slope monitoring data, the mine timely grasped the change rules of slope displacement and the potential landslide modes, and adopted the relevant prevention and control measures of landslide, and avoided the disastrous accident.

Study on belt conveyor protection device

HU Chenggong, XU Jianjun

2016, 31(10):  55-59. 

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Abstract： Based on the operating characteristics of belt conveyor, the article analyzes the common faults and hazards of belt conveyor, designs the electrical protection system of belt conveyor, and analyzes the disadvantage of the system. According to the fault design, the mine manufactures back to coal comprehensive protection device, which improves protection degree of belt conveyor.

Optimization of belt conveyor buffer bed guide plate application scheme

ZOU Guohua, YANG Jianming, QIU Chunfu

2016, 31(10):  60-61. 

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Abstract: Through researching belt conveyor buffer bed guide plate in stripping semi-continuous system in Xiaolongtang Bureau Buzhaoba Open-pit Mine, the article analyzes the existing problems of guide plate application. Combining the mine production status，the mine optimizes the buffer bed guide plate structure to improve guide plate effect and reduce maintenance time and save costs.

Safety management of vehicle transportation in Rujigou Anthracite Coal Branch Dafeng mining area

LV Shouping

2016, 31(10):  62-65. 

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Abstract: This article summarizes safety problem of vehicle transportation in Dafeng mining area after Rujigou mining area integrating three mines resources. Combining with the present situation of mining area, from the starting of enhancing the level of risk pre-control management and improving the working environment quality standardization，the mine carries out safety risk control and achieves good results.

Spiral drum of circulating water system transformation analysis

Du Xin

2016, 31(10):  66-68. 

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Abstract: With the development of mining drawdown in Fushun East Open-pit Mine, the coal preparation plant appears insufficient phenomenon in a clean water supply. The slime water of factory emissions cannot get full sedimentation and contain the recycled resources. A large number of erosion can cause pollution to the surrounding environment, which causes economic losses to the enterprise. This article introduces the production process of circulating water system transformation method.

Application of CD-I-2360 type dust removal system in open-pit mine

LU Ning

2016, 31(10):  69-71. 

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Abstract： Taking large crushing station coal dust control in the open-pit coal mine as the research object, through analyzing generated coal dust reason of unloading and crushing links, the mine selects the appropriate dust removal equipment and coal dust control measures, which effectively control the crushing station coal dust pollution and eliminate the environmental pollution incident and realize clean production of raw coal.

Environmental noise monitoring and evaluation in Changzhi west palm mining area

QIU Xuehui, SONG Xiaoxiao

2016, 31(10):  72-75. 

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Abstract: According to the characteristics and approach of mining noise and years of monitoring practical experience , by analyzing and researching mining noise pollution grade and effect degree, the article explores the mine environmental noise quality monitoring and evaluation mode , which provides the latest monitoring data for environmental noise pollution in west palm mining area.

"Three-dimensional" control measures maintaining slope safety

LU Shusheng, WANG Zhiping, MA Yue, LI Pengcheng

2016, 31(10):  76-79. 

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Abstract: Combining with production practice in Xiaolongtan Open-pit Mine, from the present situation of slope, time span of slope and slope safety perspective, the mine carries out analyzing mining technology, slope monitoring, geological ecological restoration, slope water disasters governance, and slope ground management, and presents the new slope safety point of view and control measures.

Building 12450 management mode and strengthening safety foundation

LIU Xiaojie

2016, 31(10):  80-83. 

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Abstract: Heidaigou Open-pit Coal Mine promotes safety management work, constantly creates a new situation of safe production and innovates safety management mode. Combining with the actual production and safety management challenges, the mine builds the 12450 safety management mode, and continuously strengthens the safety management basis.

Analysis of the influence factors of bridge culvert construction quality

YANG Guangyu

2016, 31(10):  84-86. 

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Abstract: The quality of bridge culvert plays an important role in the production of open-pit coal mine. This article analyzes the main influence factors, and presents suggestions aiming at the quality of bridge culvert.

Application of jet grouting pile in integrated material field reconstruction and extension of steel company

LIU Shujie

2016, 31(10):  87-89. 

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Abstract: Combining with the reconstruction and expansion project in integrated material field of steel company, the article introduces the application of jet grouting pile in reconstruction and expansion for the existing building. Through the comparative analysis, the author discusses the feasibility and design key points of scheme, which provides the design experience for the similar projects.

Analysis of safety management executive power construction in Shenhua Shengli Open-pit Coal Mine

LIN Xiangyang

2016, 31(10):  90-92. 

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Abstract: Through the systematic analysis of employees "know and do not" problem crux, the article proposed the reasonable and feasible solution, which plays the positive role for employees to promote perform construction and implement safety management.

Innovation of "1245"occupational health control mode in Shengli Open-pit Mine

BAO Yongzhi, SHAO Ziyang, SHE Changchao

2016, 31(10):  93-96. 

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Abstract: Through the practice of occupational health management work in Shengli Open-pit Coal Mine, this article innovates the professional construction control new mode, introduces"1245" occupation health control method in Shengli Open-pit Mine, which has a certain guiding significance for the occupational health management in coal mine.