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Showing: 1 to 10 of 624 matches for "half curtain"  Page   1   2   3   4   5   6   7   8   9  next TITLE Computer Model For Evaluating The Dust Reduction Potential Of Various Mining Practices For A Continuous Miner Section  SUMMARY ... corresponding reductions in dust exposure levels that are evaluated by the program include a remote control continuous miner, a half-curtain ventilation system ... AUTHOR Potts, J. Drew ; Jankowski, Robert A. PUBLISHED 1987 TITLE Improved Face Ventilation Techniques Reduce Quartz Dust Levels On Continuous Mining Operations  SUMMARY ... This research has involved the evaluation of a half-curtain face ventilation technique which reduces the cross-sectional area of the entry, thus increasing the ... AUTHOR Jankowski, Robert A. ; Jayaraman, Natesa I. ; Babbitt, Charles A. PUBLISHED 1989 TITLE Continuous Miner And Roof Bolter Dust Control  SUMMARY ... Mine operators who cannot supply a high air velocity have three alternatives: a half-curtain, antirollback sprays, and remote control. ... Half-curtain. ... AUTHOR Goodman, Gerrit V. R., PH.D. PUBLISHED 2003 TITLE More Stringent Dust Standards--Recent Compliance Statistics And Technology For Quartz Dust Control  SUMMARY ... Half-Curtain Face Ventilation System: Federal regulations require a minimum mean entry air velocity of 18.3 m/min (60 ft/min), and past studies (Kingery, 1969 ... AUTHOR Daniel, J. Harrison PUBLISHED 1985 TITLE Underground Hard-Rock Dust Control  SUMMARY ... When a half-curtain is used at a gassy face, methane can build up behind the curtain. A ... 2 , a half-curtain should be consid- ered ... AUTHOR Stachulak, Jozef S., PH.D. PUBLISHED 2003 TITLE Engineering Strategies For Dust Control In High-Quartz Coal Mine Sections  SUMMARY ... Fig. 5 - A typical half-curtain nstallation (after Jayaraman et al.. 1988). SOCIETY FOR MINING. ... One is the half-curtain face ventilation system shown in Fig. ... AUTHOR Xu, L. ; Colinet, J. F. ; Mutmansky, J. M. PUBLISHED 1992 TITLE Face Ventilation During Cross-Cut Development In A Room-And-Pillar Operation  SUMMARY ... Ualn Alrllow - Figure 14. Airflow pattern with half-length line curtain without a scrubber. Half Curtain 1,951 1,996 I L _ - - . I I L - - J 1 Contlnuws Ulner ... AUTHOR Tien, Jerry C. PUBLISHED 1989 TITLE Dust Control In High-Productivity Coal Mines: Observations And Strategies In High-Quartz Sections  SUMMARY ... One is the half-curtain face ventilation system (Figure 6). The half-curtain method is a simple and effective technique to improve the dust exposure of ... AUTHOR Xu, L. PUBLISHED 1990 TITLE Dust Control Methods In Tunnels And Underground Mines  SUMMARY ... 5 1-2. A half-curtain raises the air velocity to confine the dust cloud ..... ... PUBLISHED 2003 TITLE Dust Control In Stone Mines  SUMMARY ... If the air velocity in the travelway is not high enough to confine the dust, a “half-curtain” approach might be helpful. Installing ... AUTHOR Chekan, Gregory J. PUBLISHED 2003 Showing: 1 to 10 of 624 matches for "half curtain"  Page   1   2   3   4   5   6   7   8   9  next Search Again