Report of Investigations 8993: Effects of Water on Coal Cutting Forces and Primary Dust Distribution

Details

• Journal Article:
  Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, RI 8993
• Personal Author:
  Myren, Theodore A. ; Roepke, Wallace W.
• Description:
  Research to evaluate the lubricity effects achieved by spraying water on the cutting bit of a mining machine or spraying water on the coal during cutting has shown that neither practice affects cutting forces, as had been believed. However, when water was supplied to the cutting zone axially through the bit at 3,000 to 5,000 psi pressure, tangential cutting forces were reduced an average of 30 pct at a 1-in depth of cut while normal bit forces were reduced an average of 65 pct. Lower normal forces mean reduced bit wear, faster advance with greater depth of cut, and fewer coal fines. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Dust Geology Mining Occupational Health Safety
• Keywords:
  Mining-industry; Underground-mining; Coal-mining; Coal-dust; Engineering-controls; Control-technology; Mining-equipment; Dust-suppression; Dust-control; Dust-control-equipment
• Source:
  Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, RI 8993, 1985 Jan; :1-14
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• 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:
  19 pdf pages
• NIOSHTIC Number:
  nn:10004804
• Federal Fiscal Year:
  1985
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8e6b62e7bd7462d69621d04d78f47708b7521f634e2e4fa19f641fd317ebc30f79fbb8876b7e46cb752767d9810759dd7a40d6cfbf1cb851df387780c1d36864
• Download URL:
  https://stacks.cdc.gov/view/cdc/10444/cdc_10444_DS1.pdf
• File Type:
  [PDF - 900.25 KB ]