Dust Controlling Method Using a Coal Cutter Bit

Details

• Personal Author:
  Roepke, Wallace W.
• Description:
  A method of augmenting the cutting operation of a cutter bit to reduce the cutting energy required and to reduce the respirable dust generated during the cutting operation. During the cutting operation of coal with a continuous mining machine greater than 90 percent of the primary respirable dust generated occurs in the crushing zone around the tip of bit. By applying a high pressure (2,500 to 5,000 psi) spray of water at or near the center of the cutting tip, as the tip touches the coal, tests have shown very substantial reductions in the airborne respirable dust generated and that there is lubrication and cooling at the cutter tip/mineral interface to provide for reduced sumping forces and lowered methane ignition potential. [Description provided by NIOSH]
• Subjects:
  Dust Occupational Health Safety
• Keywords:
  Coal Mines Continuous Mining Cutting Tools Dust Control Respirable Dust
• Series:
  Mining Publications
• Document Type:
  Text
• Genre:
  Other
• 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:
  1-7
• NIOSHTIC Number:
  nn:10003040
• Citation:
  U S Pat 4,251,109 1981 Feb; :1-7
• Federal Fiscal Year:
  1981
• Peer Reviewed:
  False
• Source Full Name:
  United States Patent 4,251,109
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:98c9afbff284789a641ae228030482bd8b4b1a886955ffe827c3664fbf338efca64f20e34f0fc46ed2d6cc557f45ddd4098f7afc9b954fa1dd68984b6b2078a5
• Download URL:
  https://stacks.cdc.gov/view/cdc/219438/cdc_219438_DS1.pdf
• File Type:
  [PDF - 635.67 KB ]