Table of Content

15 March 2017, Volume 32 Issue 3

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Research of acceleration internal dumping technology from vertical mining to horizontal mining

JIANG Wenping

2017, 32(3):  1-4. 

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Abstract: The open-pit mine constructs 3D model of open-pit mining field, optimizes the mining procedure and balances the stripping ratio, fan-shaped transition from vertical mining to horizontal mining. The mine accelerates the release of the internal dumping space, hoists height, shortens the distance, reduces the occupying forestland area, builds the ecological barrier, reduces the damage to the environment, and promotes the ecological priority strategy landing in open-pit mine life cycle.

Research of south slope automobile transfer railway in Fushun East Open-pit Mine

XIA Shouliang, ZHAO Yingtuo

2017, 32(3):  5-7. 

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Abstract: The production process in Fushun East Open-pit Mine is divided into two kinds. The north slope oil shale ore adopts electric iron technology mining, and south slope adopts automotive technology for mining. As a result of the south slope geological structure, the mine designs and optimizes the existing production technology, and increases the progress of coal and rock, in order to ensure the sustainable development of the East Open-pit Mine.

Bench blasting parameter optimization in Jinzhengtai Open-pit Coal Mine

ZHOU Zhiyou, GUO Ruidong

2017, 32(3):  8-10. 

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Abstract: Aiming at the existing problem of rock level blasting, the article puts forward four kinds of solutions, and carries out the blasting effect and economic benefit evaluation on four kinds of schemes, finally determines the optimal blasting scheme. The mine improves the existing blasting effect and guarantees certain economic benefits, which provide reference for the other bench blasting parameters settings.

Determining of reasonable working bench length in Open-pit Coal Mine

CAI Zhongchao

2017, 32(3):  11-14. 

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Abstract: To explore the reasonable length of working bench of the open-pit coal mine, the article analyzes several main factors of affecting the working bench length. Finally through function model and NVP, the author comprehensively analyzes the effects of the working bench on mining, transporting and dumping, and determines the reasonable length of working bench of the open-pit coal mine.

Goaf detect based on transient electromagnetic method

CHEN Long, REN Long

2017, 32(3):  15-18. 

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Abstract: Through researching the relevant theory of goaf measuring aspects, combined with the actual situation of the mine, the article proposed the method of using transient electromagnetic to detect goaf roadway layout and shape distribution and carried out engineering application in Anjialing Open-pit Mine. By bathymetric data processing and interpretation with geological data, the mine identified the goaf distribution within the pit.

Research on inner dump increase in Ha'erwusu Open-pit Mine

LUO Huaiting, JI Yushi, YAN Jie

2017, 32(3):  19-22. 

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Abstract: The inner dump of Ha'erwusu Open-pit Mine faces the problem of increase. The article analyzes the safety hidden danger of the inner dump, researches the relationship between load height and stability of inner dump and the relationship between the slope angle and stability through the possible failure mode of the numerical simulation inner dump slope.

Determination of blasting engineering hole net parameter in Shengli Open-pit Mine

GENG Hao, XIAO Bin

2017, 32(3):  23-25. 

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Abstract: Based on the actual project situation, through calculating the radius of blasting fracture zone, the article determines the reasonable blasting hole pattern parameters, optimizes the structure of inner hole charge and reduces the probability of large rock.

Researching on improving blasting parameter of lump coal rate in Heidaigou Open-pit Mine

LI Fang, ZHANG Yinliang

2017, 32(3):  26-30. 

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Abstract: To improve lump coal rate, in combination with terrain conditions, distribution of coal seam, the equipment and construction efficiency, under the premise of guaranteeing the blasting quality and ensuring the drilling efficiency, the article researches the effect of hole diameter, hole parameters, charging structure and performance of explosive on lump coal rate, which provide the direction for the selection of blasting parameters. 

Analysis on semi-continuous technology system operation evaluation in East Open-pit Mine

HE Jijun

2017, 32(3):  31-33. 

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Abstract: The rock semi-continuous process system has been operated for nearly 3 years in Pingshuo East Open-pit Mine, the mine optimized and reformed some exposed problems .This article analyzed and summarized the exposed problems in the process of semi-continuous process system，and compared the production cost between the semi-continuous process and shovel-truck technology.

Application of semi mobile crushing and screening system in shale open-pit mine

XU Dong

2017, 32(3):  34-37. 

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Abstract: Semi mobile crushing station is reproduced link of semi continuous technology intermittent operation link and continuous operation link in shale open- pit mines, which is the key link of the whole process system. This article mainly studies the application of semi mobile crushing and screening system in shale open-pit mine.

Design and installation method of truss type belt conveyor in reconstruction project

WANG Jiadong

2017, 32(3):  38-40. 

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Abstract: The truss type belt conveyor has great use space in the transfer station and near the site of the material transformation process, so the article researches the design installation method of truss type belt conveyor in the reformation project, which has far-reaching significance for design department and mining enterprises.

Mine heavy truck rear disc brake maintenance equipment design

HAN Zigang, LI Sanzhu, JIN Xin

2017, 32(3):  41-44. 

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Abstract: In Shenhua Ha'erwusu Open-pit Mine, MT5500 / MT4400 mine trucks mainly undertake the task of rock and soil and coal transportation. The truck rear brake assembly design is disc device, and frequently emerges working brake oil leakage faults in the operation process. Combining with the working brake structure principle, the staff design a set of special maintenance device, which greatly improve the working efficiency and maintenance quality.

Mechanism and repair technology of A514 high-strength steel after welding weld delayed crack

CHEN Jianping

2017, 32(3):  45-47. 

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Abstract: Through the analysis of the mechanism of delayed cracks, the article clarified the reasons for cracks, and formulated the reasonable repair process and control measures to prevent cracks, and summarized the repair experience of delay crack, which provided good solution in order to avoid such cracks.

Low temperature materials select for mining excavator

ZHOU Hang, YAO Longang

2017, 32(3):  48-50. 

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Abstract: Through analyzing and comparing the composition and performance index of several kinds of mining excavator structure material, the article presents that materials of mining excavator should meet the "because of the operation minimum temperature region is different, there must be sufficient low-temperature impact toughness" requirements, in addition to need to meet the necessary conditions of strength and stiffness.

Repair of 8750 shovel rotary vertical shaft base hole system

DONG Xin, KONG Erlin

2017, 32(3):  51-54. 

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Abstract: The article analyzes the reasons of 8750 shovel rotary vertical shaft fracture and bearing abnormal damage, and elaborates the roof panel and bearing cup holder overhaul repair process. This article expounds the process importance of large mining equipment skip shaft hole class round repair, which provides the experience for producing other larger shaft hole circle repair process scheme and measures.

Analysis of hole drilling machine to prevent sticking

LV Dexian

2017, 32(3):  55-59. 

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Abstract: Based on analyzing the reasons of the sticking and the principle and advantages and disadvantages of several methods of preventing the sticking, the article proposed a new method to prevent sticking. The method can prevent the occurrence of all kinds of drilling, and improve the adaptability of the drilling rig to complex strata, which greatly improves the drilling efficiency.

Transformation research and design of fire control system for mining truck

ZHAO Pengfei, JIN Xin, WANG Dongfei, HAN Peng, GAO Jinrong

2017, 32(3):  60-63. 

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Abstract: As the important transport equipment in Ha'erwusu Open-pit Mine, MT5500 truck frequently emerges the automatic release phenomenon of fire extinguishing system in operation. Based on it, this article puts forward the reforming plan to reduce the failure frequency to some extent and ensure safe operation of equipments.

Fault analysis of 930E truck lift system

GAO Lei

2017, 32(3):  64-66. 

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Abstract: According to the failure of 930E truck lifting system during the 930E operation in Haerwusu Open-pit Mine, combining with the working principle of truck lift system , the article analyzes the fault, and ultimately determines the exclusion methods. This article summarizes the treatment methods of 930E truck lifting slowly, lifting weakness, no lift and other common lifting fault, which can help maintenance personnel to quickly identify the causes of the fault and improve maintenance efficiency.

Water gushing mud hidden peril control in Gaoyangpo tunnel of Pingshuo East Open-pit Mine

ZHANG Guangwu

2017, 32(3):  67-69. 

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Abstract: This article describes the overview of tunnel water gushing mud hidden peril, and analyzes the causes of the tunnel water gushing mud hidden peril, and finally discusses the precautions in control measures and specific construction management of the tunnel water gushing mud hidden peril, which has certain reference value for guiding site construction

Problems and countermeasures in Anjialing terminal sewage treatment plant

BIAN Mingming, LI Jiajian, LIU Jianguo

2017, 32(3):  70-73. 

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Abstract: As the terminal barrier, the operation for more than two years, Anjialing terminal sewage treatment plant emerges some problems in the running process affected by many factors, such as mud pump blocking, truss scraper derailment. This article analyzes the existing problems and puts forward the corresponding countermeasures.

Slope deformation and secondary disaster evolution and prevention measures in Open - pit Coal Mine

LIU Zichun, WANG Shuqing, HAN Meng, LIANG Chengjiang, LI Hongqing

2017, 32(3):  74-76. 

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Abstract: The problems of water, fire and slope in open-pit coal mine are interrelated and mutually restricted. Slope deformation is an important inducement factor of disaster occurrence. The article analyzes the relationship between slope deformation and secondary disaster evolution, and the effect of disaster management on the secondary disaster evolution, and proposes the comprehensive prevention and control measures from the source control of slope deformation and disaster monitoring.

Steps and methods of mine road construction design

ZHANG Zhaoren, JIN Min, WANG Liancheng

2017, 32(3):  77-79. 

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Abstract: This paper analyzes the current situation of mine road construction design technology, and puts forward the practical and convenient mine road construction design steps and methods, so as to provide a design reference for similar construction design.

Determination of flexible pavement structure layer thickness in Baoqing Chaoyang Open-pit Mine

JIA Changliang

2017, 32(3):  80-83. 

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Abstract: The open-pit mine road structure layer thickness has great influence on the actual use effect and road construction investment, based on the elastic layered system theory, the road surface to allow rebound deflection as the standard, the article calculates the main road structure layer thickness of mine to determine the suitable pavement parameters.

Research on prevention and control measures of road construction in landslide area

WANG Shuai

2017, 32(3):  84-87. 

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Abstract: Landslide hazard for road construction is huge, how to take effective prevention and control measures to carry out the necessary protection is very important for road. Through analyzing the characteristics of landslide soil, the article puts forward the principle of landslide prevention. From the landslide drainage, mechanical balance and change the slide zone soil three aspects, the author further discusses the main methods of landslide prevention and control.

Application analysis of localization development in equipment management of open-pit mine

HU Beibei, LI Zhidi, LI Yawu

2017, 32(3):  88-90. 

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Abstract: On the imported equipments and the key-components localization aspects, by analyzing the current domestic manufactory industry's status and technology capacity, the article presents multi ways of localization development and extension methods, which provide reference for the similar open-pit mines.

The first project archive management in North Weijiamao Coal and Electricity Company

YANG Ｊing, LIU Hongyu, ＺＨＡＮＧ Ｊｉａｎmin

2017, 32(3):  91-93. 

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Abstract: In order to strengthen archive management, deepen the importance awareness of archival work and construction and implementation of system, carry out archives work evaluation and development and utilization of archive, North Weijiamao Coal and Electricity Company has made remarkable achievements on archive management.

Standardized management at the grassroots level in open-pit coal mine

DUAN Baojuan, WANG Yunchuan, CHEN Junbin, LIU Zizhong, ZHONG Xiaoyong

2017, 32(3):  94-96. 

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Abstract: Taking the standardized management at the grassroots level in the open-pit coal mine as example, this article introduces the application of standardization in grass roots management, finds out the existing problems in the basic level standardization management, puts forward the opinions and suggestions for improvement, and discusses on the function and significance of the standardization management of the basic level in the open- pit coal mine, which provide a reference for the standardization management of open-pit coal mine.