Coal Science and Technology Articles

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1Practices on Technology for Small Coal Mining Face Connected Along Conveyor Gateway Side of Fully Mechanized Mining Face1-3

2Rear High Level Gas Drainage Gateway Applied to Control Gas from Initial Coal Mining of Fully Mechanized Mining Face4-7

3Prevention and Control of Gas from High Outburst Seam Face with Low Permeability8-10

4Application of Roof Bolt Support Technology in Room and Pillar Mining of Daliuta Mine11-14

5Renovation in Technical Rebuilding of Headframe of Main Shaft in Jiahe Mine15-17

6Research on Rapid Leakage Protection Technology of Mine Low Voltage Power Distribution System17-19

7Problems and Measures for Power Auto Compensation Test of High Voltage Electric Power Network20-21

8Research and Application of Electric Magnetic Speed Control for Electric Haulage Coal Shearer22-25

9Application of Depressant in Flotation Desulfurization26-28

10Discussion and Practices on Coal Mining Technology with Light Weight Hydraulic Powered Support Under Difficult Mining Conditions29-31

11Long Distance Auto Monitoring and Measurement System of Mine Shaft Lining Deformation32-33,14

12Research on Additive made of Black Liquid with Imide Method and its Mixture Preparation Performances34-36

13Auto Control System of Retarder in Mine Inclined Roadway37-38

14Research on Fine Coal Separated from Flying Ash39-42

15Rational Millisecond Time Setting for Coal Blasting Mining43-44,38

16Design and Deformation Measurement of Hoisting Chamber in Longshou Mine45-47,14

17Grey Prediction Method of Mine Gas Emission Base on Mining Practices48-50

18Analysis on Stability of JOY 8670-2.4/5.0 Hydraulic Powered Support50-53