Colliery Mechanical & Electrical Technology Articles

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1Study of Big Flow-rate Safety Valve of Powered Support4-6

2Development of Recovery Unit for Residual Coal at Low Position Full-mechanized Mine Goaf6-8

3Study of Frequency Conversion Speed Regulating for Mine Electric Locomotives9-10,15

4Study on Using 2-half Type Oil Seal Ring on Viscous Clutch11-15

5The Wireless Transmission of Multi-channel Signals in Shaft16-17

6The Determination and Reasonable Selection of Friction Coefficient between Belts for Belt Friction Driving Conveyor18-20

7The Shelf Life and Operation Life of Acid Head Lamp Butteries20-21

8Calculation of the Minimum Power Loss and the Optimum Film Thickness for the Cam Plate Shoe Pairs22-23

9Problems and Advice of Vacuum Feeder Switch24-25

10The Interface Technique of Locomotive Supervision Control System26-28

11Dynamic Balancing Test Analysis of Generator Sets in Electric Power Plant28-30

12AC-AC Frequent Conversion Vector Control System of Synchronous Motor of Main Shaft Winder31-33

13The Electro-hydraulic Control System of YLT Powered Support34-35

14The Application of Intelligent I/O Network System in Coal Preparation Plant36-37

15The Secondary Dust Removal Technique of Shearer with Negative Pressure37-39

16The Application of Resin-bedded Roof Bolt in Base Reinforcement for Equipment39-40

17Use Support Legs to Improve the Loading Test Stand of the Cylinder41,17

18MG400/920-WD AC Electric Haulage Shearer42-43