The design of a laboratory apparatus to simulate the dust generated by longwall shield advances
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The design of a laboratory apparatus to simulate the dust generated by longwall shield advances

Filetype[PDF-1.08 MB]

  • English

  • Details:

    • Alternative Title:
      Int J Coal Sci Technol
    • Description:
      A laboratory apparatus (shield dust simulator) was designed and constructed to simulate the dust generated during the advance of longwall hydraulic roof supports, or shields. The objective of the study was to develop a tool that could be used to test the hypothesis that foam applied to a mine roof prior to a shield advance could be used to reduce the respirable dust generated during shield advances. This paper will outline the design parameters for the development of the system, as well as describe baseline testing of coal and limestone dust. Results show that the average instantaneous respirable dust concentrated during simulated shield advance. Confidence intervals were calculated from the instantaneous respirable dust data to determine the repeatability of the data produced by the device.
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