Influence of a Continuous Mining Machine and Roof/Rib Mesh on Magnetic Proximity Detection Systems

Details

• Personal Author:
  DuCarme JH ; Jobes, Christopher C. ; Li J ; Zhou C
• Description:
  Magnetic proximity detection systems (PDSs) are used with continuous mining machines (CMMs) to protect miners from striking and pinning accidents. Generators are used in a PDS to create magnetic fields covering the space around a CMM. The PDS determines the proximity of a miner relative to the CMM based on the magnetic flux density detected by a miner-wearable component (MWC) and simultaneously alerts the miner and stops the motion of the CMM if the miner is within a proximity that creates a striking hazard. A stable magnetic field is essential to the accuracy of the proximity calculations performed by the PDS. This paper presents the results of a systematic study of the magnetic influence of two types of steel structures found near a CMM - the body of the CMM itself and the wire mesh used for roof and rib control. The results show that the steel of the CMM body can change the magnetic field distribution and also alter electrical parameters of a PDS by changing its generator current. The study also shows that, depending on the distance between the wire mesh and a generator, the magnetic field can also be altered. [Description provided by NIOSH]
• Subjects:
  Accident Prevention Accidents Mining Occupational Health Safety
• Keywords:
  Accident Prevention Continuous Mining Electromagnetic Interference Magnetic Fields Mining Industry Proximity Detection Roof Supports Wearable Technologies
• Series:
  Mining Publications
• Publisher:
  Society for Mining, Metallurgy, and Exploration, Inc.
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Colorado ; Minnesota ; OSHA Region 3 ; OSHA Region 5 ; OSHA Region 8 ; Pennsylvania
• 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:
  1-4
• NIOSHTIC Number:
  nn:20051352
• Citation:
  2018 SME Annual Meeting, February 25-28, 2018, Minneapolis, Minnesota, preprint 18-050. Englewood, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2018 Feb; :1-4
• Federal Fiscal Year:
  2018
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  2018 SME Annual Meeting, February 25-28, 2018, Minneapolis, Minnesota, preprint 18-050
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0f2c68f39b29d1bbb79c7d4c7526bcbfc55a15ebc92d9d3cdfdd58b52e7207d5cd35d3d7f5ce4ac54d03c9c1405a07f9fad352af6e0e1ac1717aee0afa082c7e
• Download URL:
  https://stacks.cdc.gov/view/cdc/227659/cdc_227659_DS1.pdf
• File Type:
  [PDF - 508.71 KB ]