Laboratory Testing of a Water Curtain Designed to Reduce Float Dust Accumulations in Longwall Returns

Details

• Personal Author:
  Beck, Timothy W. ; Seaman CE
• Description:
  Float coal dust (FCD) is an explosion hazard affecting all underground coal mine workers. This hazard is currently mitigated by the application of inert rock dust. The National Institute for Occupational Safety and Health has conducted research aimed at developing a water curtain to reduce accumulation of FCD in longwall returns reducing the likelihood of a dust fueled explosion. The curtain was tested by varying spray spacing and curtain spans for single and dual spray bar configurations. The knockdown efficiency of the control on FCD ranged from 16% to 56% based on the spray configuration. A single bar with sprays placed in areas of high dust concentration yielded the maximum knockdown per liter of water consumed. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Dust Laboratories Mining Occupational Health Safety
• Keywords:
  Coal Dust Coal Miners Coal Mines Coal Mining Control Methods Dust Control Dust Control Equipment Dust Explosions Explosion Prevention Explosive Dusts Explosive Hazards Laboratory Testing Longwall Mining Performance Tests Respirable Dust Rock Dusting Spraying Equipment Spraying Operations Sprays Underground Mines Water Sprays

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• Series:
  Mining Publications
• Publisher:
  Society for Mining, Metallurgy and Exploration
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Arizona ; Colorado ; OSHA Region 3 ; OSHA Region 8 ; OSHA Region 9 ; 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:
  1-6
• NIOSHTIC Number:
  nn:20059696
• Citation:
  MineXchange: 2020 SME Annual Conference & Expo, February 23-26, 2020, Phoenix, Arizona, preprint 20-032. Englewood, CO: Society for Mining, Metallurgy & Exploration, 2020 Feb; :1-6
• Contact Point Address:
  C. E. Seaman, CDC NIOSH, Pittsburgh, PA
• Federal Fiscal Year:
  2020
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  MineXchange: 2020 SME Annual Conference & Expo, February 23-26, 2020, Phoenix, Arizona, preprint 20-032
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:52d6baf083c20150d77a6f96983328b7ba0039a6fa6ae4434a4137bf40ff7eda5a654277e3ad1ea3ae7e402138ffb898c2c5f4a8c8cb09ddc5d0850876416ece
• Download URL:
  https://stacks.cdc.gov/view/cdc/215269/cdc_215269_DS1.pdf
• File Type:
  [PDF - 460.74 KB ]