Science and Technology of Datong Coal Mining Administration 2015 Issue 4 Application of Hydraulic Fracturing Hard Roof in Double System Coal Seam

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Science and Technology of Datong Coal Mining Administration
1000-4866
2015 Issue 4

Application of Hydraulic Fracturing Hard Roof in Double System Coal Seam
Feng Jie;

..............page:1-3

Study on Secondary Dust Removal Technology of Shearer
Hou Baoyue;

..............page:4-6,10

Study on the Control System Upgrade and Program Optimization of Zhaozhuang Coal Preparation Plant
Han Yuzhong;

..............page:7-10

Development of Cylinder Block Derusting Machine of Hydraulic Support
Zhang Jianjun;

..............page:11-13

Design and Application for Wind and Water Multistage Separator of Compressed Air Pipe
Zheng Weiguang;

..............page:14-16

The Design of the Hydraulic Support Sheet Metal Bending Tooling
Bai Xiangjun;

..............page:17-18,21

Process Reform of MG300/700-AWD ac Traction Shearer
Wang Jie;,Wang Zhiquan;

..............page:19-21

Ultra-long Distance Signal Transmission of Coal Mine Safety Monitoring System
Wang Cunxi;

..............page:22-23,27

Analysis and Application of Water Cycle Efficient Mine Ventilation Air Heat Pump System
Cai Xinguo;,Cao Fengping;,Chen Guo;

..............page:24-27

Simple Discussion on Several Problems of Coal Ash Composition Determination
Wei Guoying;

..............page:28-29,32

Monitoring and Diagnosing Head Sheave Deflection of Large Mine Hoist
Zhao Jianzhai;

..............page:30-32

Simple Discussion on Selection Calculation of Endless Rope Continuous Towing Vehicle
Wang Jing;,Wu Lixue;

..............page:33-35,38

Development of Dislocation Link Fault Monitoring Device of Scraper Conveyor
Wang Jianguo;

..............page:36-38

Technology Discussion on Preventing the Harmful Gas Leakage of Upper Goaf When Mining Close Distance Coal Seams
Guo Yonghong;

..............page:39-41

Practice of Lifting Large Hydraulic Support by Hoist in Assistant Vertical Shaft of Majialiang Mine
Guo Yaoqing;

..............page:42-44

Technical Innovation of Main Coal Flow Transport System in Tongxin Mine
Chen Siyuan;

..............page:45-47

Roadheader Turning Tunneling Roadway of Coal Mine
Ren Wuxing;

..............page:48-49,52

The Application of Preventing Shocking Pressure by Using High Pressure Hydraulic Slotting
Jia Fangwei;

..............page:50-52

Safety Monitoring Device and System in Mine Auxiliary Transportation Vehicle Running
Yang Buzhong;

..............page:53-54,57

Transformation of ZZ6000/18/38 Support in the Coal Seam of the Carboniferous
Li Daqing;

..............page:55-57

The Application of Frequency Conversion Automatic Tensioning Device of Belt Conveyor
Wang Xiangjun;

..............page:58-59,62

The Research and Development of Hydraulic Pneumatic Symbol Library Based on Software of UG
Liu Jieyuan;

..............page:60-62

tong mei ke ji zheng gao jian ze

..............page:封2