Field Study Results of a 3rd Generation Roof Bolter Canopy Air Curtain for Respirable Coal Mine Dust Control

Details

• Personal Author:
  Cross R ; Grounds T ; Klima S ; Reed, William R. ; Ross G ; Shahan M ; Singh K
• Description:
  A 3rd generation roof bolter canopy air curtain (CAC) has been developed and constructed by J.H. Fletcher & Co., Inc. As with the previous generation of the CAC, this design uses the principle of providing uniform airflow across the canopy area as recommended by the National Institute for Occupational Safety and Health. The new modifications include a plenum that is constructed of a single flat aluminum plate, smaller-diameter airflow openings, and a single row of perimeter nozzles designed to prevent mine air contaminated by respirable dust from entering the CAC protection zone. Field testing was conducted on this new 3rd generation design showing reductions in coal mine respirable dust exposure for roof bolter operators. Dust control efficiencies for the CAC for the left bolter operator (intake side) ranged from approximately 26%-60%, while the efficiencies for the CAC for the right bolter operator (return side) ranged from 3% to 47%. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Dust Laboratories Mining Occupational Health Safety
• Keywords:
  Airflow Author Keywords: Roof Bolter Canopy Air Curtain Coal Dust Coal Mines Coal Mining Dust Control Dust Exposure Dusts Gravimetric Analysis Gravimetry Laboratory Testing Respirable Dust Roof Bolters Sampling Statistical Analysis

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• Series:
  Mining Publications
• ISSN:
  2095-8293
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Illinois ; OSHA Region 3 ; OSHA Region 5 ; Pennsylvania ; West Virginia
• 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:
  79-87
• Volume:
  7
• Issue:
  1
• NIOSHTIC Number:
  nn:20057962
• Citation:
  Int J Coal Sci Technol 2020 Mar; 7(1):79-87
• Contact Point Address:
  W. R. Reed, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 626 Cochrans Mill Rd., Pittsburgh, PA 15236
• Email:
  rreed@cdc.gov
• Federal Fiscal Year:
  2020
• NORA Priority Area:
  Mining
• Peer Reviewed:
  True
• Source Full Name:
  International Journal of Coal Science & Technology
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0e3126106268c056926dd9e11c5fa0c7445e52182114fa345fadc58fcef9dccfeafc65de2bdab7202a9ec04a8c5fa20354c7aa0c4ea775a058c12b871328eea8
• Download URL:
  https://stacks.cdc.gov/view/cdc/227936/cdc_227936_DS1.pdf
• File Type:
  [PDF - 428.71 KB ]