Large-Scale Explosion Propagation Testing of Treated and Non-Treated Rock Dust When Overlain by a Thin Layer of Coal Dust

Details

• Personal Author:
  Cybulski K ; Dyduch Z ; Goodman, Gerrit V. R. ; Harris, Marcia L. ; Hildebrant R ; Perera IE ; Sapko, Michael J.
• Description:
  To prevent coal dust explosion propagations, rock dust needs to be lifted and suspended in the air with the coal dust during an explosion. The addition of anti-caking agents prevents caking of rock dust in the presence of water. Mining and rock dusting processes can frequently create alternating layers of rock dust and float coal dust on mine surfaces. For this test series, a thin layer of coal dust was distributed on top of a layer of either treated or non-treated rock dust in the Experimental Mine Barbara, Poland. The experimental results compare the effectiveness of treated and non-treated rock dusts to attenuate a propagating coal dust explosion initiated with either strong or weak methane explosions. Experimental results indicate that the treated rock dust performs better than non-treated rock dust in arresting a propagating explosion, especially in the presence of moisture. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Dust Explosions Methane Mining Occupational Health Particulate Matter Safety
• Keywords:
  Author Keywords: Dust Dispersibility Coal Dust Coal Mining Crack Propagation Dust Control Dust Explosions Dusts Effectiveness Research Explosion Prevention Layered Dust Materials Testing Methanes Mine Gases Particulates Performance Tests Rock Dusting Treated Rock Dust

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• Series:
  Mining Publications
• ISSN:
  2524-3462
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  38
• Issue:
  2
• NIOSHTIC Number:
  nn:20061949
• Citation:
  Min Metall Explor 2021 Apr; 38(2):1009-1017
• Contact Point Address:
  Inoka E. Perera, NIOSH Pittsburgh Mining Research Division, Pittsburgh, PA 15236, USA
• Email:
  iju9@cdc.gov
• CAS Registry Number:
  Methane (CAS RN 74-82-8)
• Federal Fiscal Year:
  2021
• Peer Reviewed:
  True
• Source Full Name:
  Mining, Metallurgy & Exploration
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5c95c9c94f9a0b24ea9e51aa0858d538d297f9a565fd4f60e1e2b5107ad7de1024c49cc94706430b33843d3f2f1360f895e0a6ccad6be74d5a364a120c6a5b17
• Download URL:
  https://stacks.cdc.gov/view/cdc/215420/cdc_215420_DS1.pdf
• File Type:
  [PDF - 3.80 MB ]