Dissertation > Excellent graduate degree dissertation topics show

Experimental Study on Gas Desorption Laws of Tectonically Coal

Author: WenZhiHui
Tutor: WeiJianPing；LiuMingJu
School: Henan Polytechnic University
Course: Safety Technology and Engineering
Keywords: Tectonic coal Gas desorption The cuttings Gas Desorption Index
CLC: TD712
Type: Master's thesis
Year: 2008
Downloads: 158
Quote: 1
Read: Download Dissertation

Abstract


In this paper, the method of combining laboratory experiments and theoretical analysis , research the different types of damage tectonic soft coal in different adsorption equilibrium pressure , the gas desorption characteristics of different particle size , determined by different tectonic soft coal cuttings gas desorption index K < sub > 1 < / sub > values ​​and the ⊿ h , 2 < / sub > , derivation and validation for suction index K 1 < / sub > values ​​and ⊿ h 2 , relationship , and according to the law of desorption , revealing the understanding of suction index K 1 < / sub > values ​​and the ⊿ h 2 < / sub > predicted tectonic coal difference . Different the damage type constructor coal desorption data analysis , the tectonic coals initial gas desorption speed and the type of failure . For hard and soft layered coal samples collected from the same seam in the same temperature , particle size, balanced pressure conditions , the initial gas desorption rate of the soft coal is much larger than the hard coal , the higher the extent of the destruction of tectonic soft coal , its corresponding initial gas desorption speed is the greater , the faster the desorption velocity attenuation ; analysis the Propane cumulative proportion of the amount of initial gas desorption accounted for a long time ( 120 minutes) , thereby constructing soft coal gas desorption loss is equal to t method projected gas loss amount plus tectonic soft coal initial gas desorption ( 1 minute desorption ) of new gas loss calculation method ; Determination of tectonic soft coal cuttings gas Desorption Index , recognizing the K < / the adaptability of the sub > 1 value Index is closely related to the extent of the damage of coal , which mathematical methods for constructing coal calculated the K < / sub > 1 value so that the index can accurately reflect the different extent of the damage of tectonic coal cuttings gas desorption is the crux of the problem , obtained for different failure types of coal , the cuttings gas desorption indicators Δh 2 the relative - K < / sub > value indicators have better adaptability .

Related Dissertations

  1. The Gas-geology Law and Gas Forecasting on Wugou Mine,TD712
  2. Theory on P-Wave Azimuthal AVO and Detecting Technique of Coal Bed Cracks,P618.11
  3. Experimental Study on Moisture Influence Gas Desorption Laws of Tectonic Coal,TD712
  4. Study on the Gas Desorption Law of Coal Core Under the Non-uniform Pressure Condition in the Medium of Dring Mud,TD712
  5. Magma Intrusion in No.2 Mine in Xuandong Influence on Gas Existence,TD712.2
  6. Experimental Study of Temperature-pressure Coupling Effects on Transport of Adsorbed Gas in Raw Coal from Deep Coal Mine,TD712
  7. Recognition of Tectonically Deformed Coal and Its Application in the Prediction of Outburst Area in Coal Mine,TD713
  8. Study on Mechanism of Injection Heat Increasing Production in Coal-bed Gas of Low Permeability Coal Seam,P618.11
  9. The Study on the Influence of Geologic Structure on Gas Outburst in Qidong Coal Mine,TD163
  10. Basic Research of Gas Desorption Index of Drill Cuttings （Δh2） Measurement Technology,TD712
  11. The Research of Tectonic-cotrolling on Coal and Gas Deposit Law in Pingdingshan No13 Mine,TD712.2
  12. Experimental Study on Initial Stage Features of Gas Desorption of Tectonic Coal,TD713
  13. Gas Concentration Analysis and Realized Based on Lionking Platform,TD712
  14. Research on Gas Recovery and Utilization Technology in Mine Return Current,TD712
  15. Study on Yiyuan Mine’s Gas Disaster Prevention Technology,TD712
  16. Study on Gas Prevention and Control Technology at Fully Mechanized Caving Face of Liujia Coal Mine,TD712
  17. The Research and Simulation of Mine Gas Explosion Based on Particles System,TD712.7
  18. Numerical Simulation of Coal Methane-coal Coupling Effect in Roadway,TD712
  19. Research on Gas Occurrence and Emission of Sanjiazi Coal Mine,TD712
  20. Research and Application into Rapid Method for Determination of Coal Seam Gas Content,TD712
  21. Study on Gas Migration for Extreme Close Range Upper Protective Coal Seam Exploitation in No.5 Mine, Pingdingshan,TD712
  22. Research of Gas Early-Waring Management in Colliery Based on the Risk Source Theory,TD712

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