Coal Dust Explosibility Meter

Details

• Corporate Authors:
  National Institute for Occupational Safety and Health
• Description:
  Past research has shown that the accumulation of coal dust in underground coal mines can be rendered nonexplosible by adding sufficient quantities of inert rock dust, such as limestone dust. Federal regulations for underground coal mines require mine operators to dust mine corridors with an inert rock dust and maintain a total incombustible content of at least 65% in the entries and at least 80% in the returns, where the coal dust is expected to be finer in size. Currently, samples of the deposited coal and rock dust are collected for above ground analysis of the inert percentage, which consists of rock dust, ask, and moisture. The processing time for this analysis can be as long as 2 weeks. In addition, research has shown that measuring the incombustible percentage is not always sufficient to determine the explosibility of a sample, especially for finer coal dust. The National Institute for Occupational Safety and Health, Pittsburgh Research Center, has devised a prototype hand held instrument that can provide a direct assessment of the potential explosibility of a coal and rock dust mixture. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Dust Explosions Mining Occupational Health Safety
• Keywords:
  Coal-dust Coal-mining Dust-exposure Dusts Explosion-prevention Explosive-dusts Explosive-hazards Mining-industry Monitoring-systems Monitors Particle-size Underground-mining

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• Series:
  Mining Publications
• ISSN:
  0271-3888
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  14-15
• NIOSHTIC Number:
  nn:10001186
• Citation:
  Holmes Saf Assn Bull 1997 Oct; :14-15
• Contact Point Address:
  National Institute for Occupational Safety and Health (NIOSH), Pittsburgh Research Center, Cochrans Mill Rd., P. O. Box 18070, Pittsburgh, PA 15236-0070
• Federal Fiscal Year:
  1998
• Peer Reviewed:
  False
• Source Full Name:
  Holmes Safety Association Bulletin
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2b6b5ececad59c0ef08ddb569a2517d7ddb96bc55235031bd35556064262cfc1a78be9fa5a2f57aca5080f7fd61f18e8ace95105b44b8250a1b3f9bc2cbb1971
• Download URL:
  https://stacks.cdc.gov/view/cdc/219381/cdc_219381_DS1.pdf
• File Type:
  [PDF - 1.72 MB ]