Dissertation > Excellent graduate degree dissertation topics show

Study on Gas Prevention and Control Technology at Fully Mechanized Caving Face of Liujia Coal Mine

Author: LianZhenShan
Tutor: WangJiRen
School: Liaoning Technical University
Course: Mining engineering
Keywords: gas emission goaf atmospheric pressure gas drainage
CLC: TD712
Type: Master's thesis
Year: 2011
Downloads: 27
Quote: 0
Read: Download Dissertation


According to the phenomenon of gas abnormal emission and exceeding the limit during the period of tunneling and production at Liujia coal mine WⅡN16-7 fully mechanized caving face, use direct method to test the gas content of self coal seam 6-7 and adjacent coal seam 6-8, 0.73m3/t and 0.62m3/t, respectively. Apply different-source prediction to predict the gas emission, the gas emission of goaf is 1.14m3/t, accounting for approximately 65% of total gas emission. On the basis of analyzing the gas emission characteristics, through the ground atmospheric pressure and underground gas concentration measurement, the reason is due to the changes of ground atmospheric pressure, and the output of working face and different working process. Adopt borehole gas drainage in upper goaf and the coal goaf buried tube drainage combined control measures, increase nitrogen injection measures based on gas drainage, realize controlling gas and fire prevention parallel technical measures, use T-junction and piston to install tubes for the first time, ensure the safety of normal production.

Related Dissertations

  1. High Pressure Common Rail Diesel Engine Fueled with Biodiesel test under different atmospheric pressure,TE667
  2. Coal and gas outburst Hou Wasi Dynamic Emission Law,TD713
  3. Synthesis, Conducting Properties and Application of Bax Ce0.8Y0.2O3-α + yZnO,TQ174.1
  4. Study on Yiyuan Mine’s Gas Disaster Prevention Technology,TD712
  5. Atmospheric Pressure Plasma Surface Modification of Carbom Fibers and Numerical Simulation of the Discharge,TQ342.742
  6. Research on Similar Simulation of Gas Drainage Technology on Mining Face and Fire Prevention in Gobs,TD752.2
  7. Research on Gas Occurrence and Emission of Sanjiazi Coal Mine,TD712
  8. Preparation of Gas-geologic Map of Chenzhuang Mine and Coalbed Methane Recource Evaluation,TD712
  9. The Region Prevention Technology of the Coal Spontaneous Combustion in the Large Goaf,TD752.2
  10. The Simulation of Atmospheric Plasma Polishing Process,TG664
  11. Reserch on the Influence Caused by the Froth Well’s Exploitation of Wujia Mine on the Working Slope Strata Movement of Pingzhuang West Open Pit,TD325
  12. Experimental Research on Supporting Performance of Roadway Filling Bodys in Roadway Maintained Along the Goaf,TD353
  13. Li Wu copper mine goaf processing technology research,TD862.1
  14. Based on the the VB6.0 goaf risk evaluation model and system applications,TD325
  15. Study on the Key Technologies of Gob-Side Gate Entry Driving on Deep Working Face,TD353
  16. Get off the plateau environment with diesel engine fueled with biodiesel,TE667
  17. Security and stability of the diversion tunnel and the underlying goaf,TV221.2
  18. Study on Computer Controlled Atmospheric Plasma Optical Processing,TH74
  19. Experimental Study of Pyrolysis & Gasification Characteristics of Hospital Waste Components,X799.5
  20. Numerical Simulation of Three Zone in Airflow Field of Gob Areas and Its Application in Preventing Spontaneous Combustion,F272.92

CLC: > Industrial Technology > Mining Engineering > Mine safety and labor protection > Mine atmosphere > Mine Gas
© 2012 www.DissertationTopic.Net  Mobile