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Methane Analyzer System to Record Continuously the Methane Content of Coal Mine Ventilation Air.
Irani-MC; Jeran-PW; Lawhead-DH
NTIS: PB 240 671 :14 pages
The Bureau of Mines, in cooperation with the Mine Safety Appliances Company, has developed a new methane analyzer system for underground applications. Methane enters coal mine ventilation air from the breakup of coal at the active face, from the collapse of roof rock during retreat mining, and from the ribs abutting virgin coal. Each source contributes varying amounts to the total emission, depending upon rate of mining, type of mining, and the character of the coalbed and adjacent strata. The evaluation of individual parameters of methane emission requires the continuous monitoring of individual mine sections over a long period of time. The methane analyzer system was developed to meet this need. The system has been installed and operated in an active mine in the Pittsburgh coalbed. The system and details of its installation and calibration are described. Data are presented to substantiate its reliability.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 240 671
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division