Van Zyl, FJLinzer, P2007-10-232007-10-231996-10Van Zyl, FJ and Linzer, P. 1996. Reduce the methane hazards in collieries, vol. 2. Safety in Mines Research Advisory Committee, Col 030b, October, 1996, pp 1-527http://hdl.handle.net/10204/1354Methane levels have been continuously monitored and recorded, at several positions, on and around continuous miners and road headers during mining operations. This has been achieved using a data logger system recording input from six methanometers every 10 seconds over a full shift. The logger is fully self -contained, comprising a battery, recording station, data logger and methanometers. Methane levels around continuous miners and road headers are generally less than 1%, but can be higher, particularly on the rectum side of the machine, and around the cutting drum if ventilation flow to the face is restricted. A small two channel version is being used to monitor methane levels and atmospheric pressure. Methane in a rectum affected by a sealed off section shows two distinct periods of increased levels during each 24 hour period, coinciding with reductions in atmospheric pressure. The data logger system has potential for further development, with the addition of other suitable types of sensor. Present work is to add two dust sensors for evaluation of hybrid mixture at the face.enSIMRACCOL 030bMethane hazardsConference PresentationVan Zyl, F., & Linzer, P. (1996). Reduce the methane hazards in collieries, vol. 2. http://hdl.handle.net/10204/1354Van Zyl, FJ, and P Linzer. "Reduce the methane hazards in collieries, vol. 2." (1996): http://hdl.handle.net/10204/1354Van Zyl F, Linzer P, Reduce the methane hazards in collieries, vol. 2; 1996. http://hdl.handle.net/10204/1354 .TY - Conference Presentation AU - Van Zyl, FJ AU - Linzer, P AB - Methane levels have been continuously monitored and recorded, at several positions, on and around continuous miners and road headers during mining operations. This has been achieved using a data logger system recording input from six methanometers every 10 seconds over a full shift. The logger is fully self -contained, comprising a battery, recording station, data logger and methanometers. Methane levels around continuous miners and road headers are generally less than 1%, but can be higher, particularly on the rectum side of the machine, and around the cutting drum if ventilation flow to the face is restricted. A small two channel version is being used to monitor methane levels and atmospheric pressure. Methane in a rectum affected by a sealed off section shows two distinct periods of increased levels during each 24 hour period, coinciding with reductions in atmospheric pressure. The data logger system has potential for further development, with the addition of other suitable types of sensor. Present work is to add two dust sensors for evaluation of hybrid mixture at the face. DA - 1996-10 DB - ResearchSpace DP - CSIR KW - SIMRAC KW - COL 030b KW - Methane hazards LK - https://researchspace.csir.co.za PY - 1996 T1 - Reduce the methane hazards in collieries, vol. 2 TI - Reduce the methane hazards in collieries, vol. 2 UR - http://hdl.handle.net/10204/1354 ER -