Results 71 - 80 of 128

• 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.
• Improving the Performance of Fan-Powered Dust Collectors in Stone-Cutting Applications
  6/1/2008 - Conference papers
  The objective of the research was to cost-effectively increase the air cleaning volume and improve dust capture efficiency of an off-the-shelf dust collector with a larger motor and blower.
• Technology News 528 - Recirculation Filter Is Key to Improving Dust Control in Enclosed Cabs
  10/1/2007 - Technology News
  NIOSH has investigated various cab filtration system factors on a basic HVAC system in the laboratory to evaluate their effects on overall cab dust protection performance.
• Dust Control Practices for Underground Coal Mining
  9/1/2007 - Conference papers
  This paper summarizes existing dust control technologies routinely being used in underground coal mine operations, and provides a review of new controls that are being pursued.
• 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...
• Airborne Dust Capture and Induced Airflow of Various Spray Nozzle Designs
  7/1/2007 - Peer reviewed journal articles
  Water spray characteristics, including droplet size and velocity, airborne dust capture potential, and induced airflow quantity for various spray nozzle designs were evaluated to provide basic information for improving spray applications.
• Improving Silica Dust Controls for Metal/Nonmetal Mining Operations in the United States
  4/1/2007 - Conference papers
  NIOSH researchers are improving protection provided by enclosed cabs on mining equipment, reducing dust generation from surface drills, reducing dust levels in iron ore operations, and developing a new method to clean dust from soiled clothes.
• Reducing Respirable Dust Exposure of Workers Using an Improved Clothes Cleaning Process
  4/1/2007 - Peer reviewed journal articles
  A quick, safe, and effective method has been developed that allows workers to clean their dust laden work clothing periodically throughout the day.
• Performance of a Light Scattering Dust Monitor at Various Air Velocities: Results of Sampling in the Active Versus the Passive Mode
  1/1/2007 - Peer reviewed journal articles
  The Thermo personal DataRam (pDR) is an instantaneous sampler that uses light-scattering technology to provide relative measures of airborne respirable dust. The pDR can be used in active and passive modes to measure respirable dust levels.
• A New Concept for Leak Testing Environmental Enclosure Filtration Systems
  11/1/2006 - Peer reviewed journal articles
  A method (patent pending) has been developed to determine the quality of environmental cab filtration systems. It utilizes specially configured filter cartridges to remove carbon dioxide from the ambient air with the environmental cab's air filtration s...