Comparison of Different Hollow Cone Water Sprays for Continuous Miner Dust Control Applications

Details

• Personal Author:
  Klima S ; Mischler, Steven E. ; Organiscak, John A. ; Seaman C
• Description:
  Researchers at the National Institute for Occupational Safety and Health's Pittsburgh Mining Research Division (PMRD) performed comparative testing of six hollow cone water sprays from three manufacturers: static swirl chamber sprays from Spraying Systems (BD-3, BD-5) and Steinen-Hahn (SH-3, SH-5), and movable swirl chamber sprays from Repair King (RK-3, RK-5). Water flow testing was completed at three operating pressures (60, 80, and 100 psig) where both sets of sprays (3-series and 5-series) produced similar water flows, deviating less than 8% from the average water flow rate at each pressure. Airflow induction testing was completed at 80 psig using a hot wire anemometer to take air velocity measurements upstream of the spray nozzles. Respirable dust capture efficiency testing was completed in a 14.5-m3 (512-ft3) closed system dust chamber at 80 psig. The dust capture efficiency ranged from 7.2% to 9.9% for the 3-series nozzles, and from 5.3% to 7.1% for the 5-series nozzles. Sprays were also analyzed using a Cloud Aerosol and Precipitation Spectrometer (CAPS), which uses light scattering to count and size the airborne water droplets from each spray. In both cases, Spraying Systems sprays produced the largest mean droplet size, followed by Steinen-Hahn and Repair King sprays, respectively. [Description provided by NIOSH]
• Subjects:
  Air Movements Dust Laboratories Mining Occupational Health Safety Spectrum Analysis
• Keywords:
  Air Flow Anemometry Continuous Mining Control Technology Dust Collection Dust Collectors Dust Control Dust Control Equipment Dust Measurement Environmental Control Equipment Design Equipment Operation Equipment Testing Laboratory Testing Mining-industry Particle Counters Particle Sizers Performance Capability Performance Tests Respirable Dust Spectrographic Analysis Sprays Water Sprays

  More +
• Series:
  Mining Publications
• ISBN:
  9781510836471
• Publisher:
  Society for Mining, Metallurgy, and Exploration, Inc.
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Colorado ; OSHA Region 3 ; OSHA Region 8 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  138-141
• NIOSHTIC Number:
  nn:20050045
• Citation:
  Creating value in a cyclical environment, SME annual conference and expo 2017, February 19-22, 2017, Denver, Colorado. Englewood, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2017 May; :138-141
• Contact Point Address:
  Scott Klima, NIOSH, Pittsburgh, PA
• Federal Fiscal Year:
  2017
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  Creating value in a cyclical environment, SME annual conference and expo 2017, February 19-22, 2017, Denver, Colorado
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:1e7e21c08daab304f0a6e4eb87bc8ed4ce0a50496e12a8329540f48605fc43c79b6eab9ae0c3a3b5acb4e6cf76bd5115f4a4e296ae6359beb7869f7db8648e1f
• Download URL:
  https://stacks.cdc.gov/view/cdc/228437/cdc_228437_DS1.pdf
• File Type:
  [PDF - 133.69 KB ]