Report of Investigations 9591: Suppression of Longwall Respirable Dust Using Conventional Water Sprays Inoculated with Surfactants and Polymers

Details

• Journal Article:
  Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, RI 9591
• Personal Author:
  Kilau, Howard W. ; Lantto, O. L. ; Olson, K. S. ; Myren, T. A. ; Voltz, J. I.
• Description:
  The U.S. Bureau of Mines is evaluating water spray additives for the purpose of improving respirable dust control during coal mining operations with particular emphasis on the longwall shearer. Recent field tests of combined surfactant-polymer reagents at two production longwall operations have shown favorable respirable dust reductions compared with water sprays containing no additive. Gravimetric dust samples obtained downwind of the shearer while following or preceding the machine showed corrected dust reductions in the range of about 40 - 60 percent for some of the reagent formulations as compared to water alone. Experimental evidence indicates that dust captured by reagent-treated sprays at the shearer can be re-emitted in the headgate area if stageloader-crusher sprays and other dust controls are inadequate. [Description provided by NIOSH]
• Subjects:
  Coal Dust Irritants Mining Occupational Health Particulate Matter Personal Protective Equipment Polymers Respiratory Protective Devices Respiratory System Safety Surface-Active Agents

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• Keywords:
  Coal-dust; Coal-mines; Dust-control; Longwall-mining; Mining-equipment; Occupational-safety-and-health; Performance-evaluation; Polymers; Respiration; Sampling; Shearer-loaders; Spraying; Surfactants; Wetting-agents; Respiratory-irritants; Respiratory-protection; Dust-collectors; Dust-exposure; Dust-inhalation; Dust-measurement; Particulate-dust; Pulmonary-system; Lung-irritants
• Source:
  Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, RI 9591, 1996 Jan; :1-60
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Publisher:
  U.S. Department of the Interior, Bureau of Mines
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Minnesota ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  TCRC - Twin Cities Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  59 pdf pages
• NIOSHTIC Number:
  nn:20039377
• NTIS Accession Number:
  PB96-137328
• Federal Fiscal Year:
  1996
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:74b89c1c9d4961bebd524478cfc7584f222e8c92c09f119089abe4a08c3dbb69145daacd6560770d03b75ca51c1dcf3ae85c9df26bf10ebbe993568b1f9295ff
• Download URL:
  https://stacks.cdc.gov/view/cdc/10250/cdc_10250_DS1.pdf
• File Type:
  [PDF - 1.28 MB ]