Page 13 - Advanced Mine Ventilation

xii Contents

22 Prevention of Frictional Ignitions 363
22.1 Coal Seam Degasification 365
22.2 Ventilation 366
22.3 Wet Cutting or Water-Jet-Assisted Cutting 368
22.4 Machine Design Parameters 370
22.5 Summary and Conclusions 372
22.6 Frictional Ignitions Caused by Belt Conveyors 373
References 374

23 Gas and Dust Explosions 377
23.1 Gas Explosions 378
23.2 Dust Explosions 387
23.3 Prevention of Gas Explosions 391
23.4 Stone Dust Barriers for Explosion Propagation Prevention 396
Problems 397
References 397

24 Mine Sealing and Recovery 399
24.1 Mine Sealing 400
24.2 Inertization of the Sealed Area 402
24.3 Sampling the Sealed Mine Atmosphere and Interpretation
of Data 403
24.4 Recovery of the Sealed Mine 408
Problem 410
References 410

Appendix A 413
Appendix B: Ventilation Network Analyzer in Fortran IV 415
Appendix C: Ventilation Network Analyzer in CDD With Input
and Output 437
Appendix D: The Input and Output Data for the Hypothetical Mine 483
Index 493