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Noise Study of Longwwall Mining Systems

Public Domain


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  • Personal Author:
  • Description:
    An investigation was conducted to identify and promote the application of noise control technology to future longwall mining machinery. Intensive noise and vibration data were acquired on a typical longwall shearing machine, and the highest noise levels were shown to radiate from the cutter drums. Shearing machine cutter drum noise control techniques that take advantage of the nature of the dynamic forces generated during coal cutting were developed. These include both structural redesign and force isolation techniques. A reduced noise cutter drum was developed that achieved a 5- to 6-dba system noise reduction at the operator's position. Its operational performance was verified by a 6-month-long in-mine test. It was evident from the data that additional noise reduction could be achieved by treatment of the shearing machine hydraulics. Noise control of secondary sources was also investigated. A method of reducing full or empty stage conveyor noise (and continuous miner conveyor noise) by 5 to 10 dba was demonstrated through isolation techniques. Underground mine durability testing, however, is yet to be demonstrated. [Description provided by NIOSH]
  • Subjects:
  • Series:
    Mining Publications
  • Subseries:
    Open File Report
  • Document Type:
    Text
  • Genre:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    PRC - Pittsburgh Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    1-169
  • NIOSHTIC Number:
    nn:10005377
  • NTIS Accession Number:
    PB87-102257
  • Citation:
    NTIS: PB/87-102257 :169 pages
  • Federal Fiscal Year:
    1986
  • Performing Organization:
    Wyle Laboratories
  • Peer Reviewed:
    False
  • Source Full Name:
    NTIS: PB/87-102257
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:41a88e695f4a8a0520cb2e63f7def352faf69af3fd56e5fcd5d3d512b2123b9dc4c2c77070e0ee0fe05b5688db4c3d4692371d4c937c7545b3a549c136cde1f7
  • Download URL:
  • File Type:
    Filetype[PDF - 9.35 MB ]
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