Results 61 - 70 of 95

• Horizontal Air-Blocking Shelf Reduces Dust Leakage from Surface Drill Shroud
  12/1/2008 - Peer reviewed journal articles
  This paper describes a recent research project initiated by NIOSH which identified improvement of the drill shroud design as one of its main objectives for reducing the exposure of surface miners to respirable dust.
• Summary of NIOSH Research Completed on Dust Control Methods for the Surface and Underground Drilling
  12/1/2008 - Peer reviewed journal articles
  This paper summarizes the results of research that has been done on respirable dust control for surface mine blasthole drilling operations.
• Evaluation of Dust Exposures Associated with Mist Drilling Technology for Roof Bolters
  12/1/2008 - Peer reviewed journal articles
  This work presents the findings from NIOSH field and laboratory studies comparing respirable dust levels on mist drilling roof bolter machines to dust levels measured on machines using a conventional vacuum drilling system.
• An Expanded Model for Predicting Surface Coal Mine Drill Respirable Dust Emissions
  9/1/2008 - Peer reviewed journal articles
  The focus of this work is drill shroud dust leakage and the relationships of various drill parameters on this leakage.
• Laboratory and Field Evaluation of Dust Collector Bags for Reducing Dust Exposure of Roof Bolter Operators
  7/1/2008 - Peer reviewed journal articles
  This paper presents the results of NIOSH laboratory and field tests to evaluate the effectiveness of dust collector bags for reducing dust liberation and operator exposure from a roof bolter's dust collection system.
• Coal Dust and Methane
  6/1/2008 - Peer reviewed journal articles
  This article describes the Coal Dust Explosibility Meter (CDEM), a hand-held instrument developed by NIOSH, which uses optical reflectance to measure the explosibility of a rock dust and coal dust mixture, which is now commercially available.
• Portable XRF Analysis of Occupational Air Filter Samples from Different Workplaces Using Different Samplers: Final Results, Summary and Conclusions
  11/1/2007 - Peer reviewed journal articles
  This paper concludes a five-year program on research into the use of a portable X-ray fluorescence (XRF) analyzer for analyzing lead in air sampling filters from different industrial environments, including mining, manufacturing and recycling.
• Closing the Door to Dust When Adding Drill Steels: Uni-directional Cab Filtration and Pressurization System Tested
  10/1/2007 - Peer reviewed journal articles
  During a recent NIOSH field evaluation of a newly designed filtration and pressurization system for an enclosed cab of a surface drill, it was determined that the drill operator's respirable-dust exposure was significantly increased during time periods ...
• Miners' Views about Personal Dust Monitors
  9/1/2007 - Peer reviewed journal articles
  This NIOSH paper documents coal miners’ reactions to the new Personal Dust Monitor (PDM), and how they make use of the information th PDM provides.
• Water Separator Shows Potential for Reducing Respirable Dust Generated on Small-Diameter Rotary Blasthole Drills
  9/1/2007 - Peer reviewed journal articles
  Tests have been conducted by NIOSH on a newly designed device for smaller diameter drills that separates the water from the bailing air before it reaches the bit and thus provides the cost benefit of dry drilling while providing the benefit of wet drill...