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Mining Publication: Factors Affecting the Location of Methanometers on Mining Equipment
Keywords: Methane Methane monitors Monitoring
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: June 2001
Authors: CD Taylor, ED Thimons, JA Zimmer
Conference Paper - June 2001
Download PDF Document (0.26 MB)
NIOSHTIC2 Number: 20023446
In: Proc 7th Intl Mine Ventilation Congress, Kracow, Poland, June 17-22, 2001; :683-687
The U.S. Code of Federal Regulations (Title 30) requires that a methane monitor be placed on every mining machine to continuously observe and record methane levels at the face. The monitor must provide a warning whenever methane levels are 1.0 percent or higher. An effective monitoring system will indicate a methane concentration of 1.0 percent on the mining machine before methane levels at the mining face reach 5.0 percent. Where the methane monitor is located on the mining machine is one of the most important factors that determines how effectively face methane levels can be predicted. Any change in the sampling location will result in a change in measured methane concentration. To protect the methanometer, it is usually located on the cutting boom at least 1 to 1.8 m (3 to 6 ft) outby the front cutting bits. A face ventilation system using blowing tubing was simulated in a full-scale test facility. Methane released from the face area was monitored at multiple locations on a model mining machine as well as locations near the face. Based on the relationship between concentrations measured on the machine and at the face, criteria were developed for selecting the best machine locations for monitoring methane. Recommendations are given for revising methane action levels for alternative sampling locations.
Image of publication Factors Affecting the Location of Methanometers on Mining EquipmentConference Paper - June 2001
Download PDF Document (0.26 MB)
NIOSHTIC2 Number: 20023446
In: Proc 7th Intl Mine Ventilation Congress, Kracow, Poland, June 17-22, 2001; :683-687
See Also
Adapting Remote Methane Leak Detector (RMLD) to Coal Miner Rescue
Evaluating Performance Characteristics of Machine-Mounted Methane Monitors by Measuring Response Time
Evaluation of Person-Wearable Methane Monitors
Ignition of Methane-Air Mixtures by Laser Heated Small Particles
Methane Detection and Monitoring
Methane Emission Rate Studies in a Northern West Virginia Mine
Remote Fiber-Optic Methane Monitor
Remote Methane Sensors
Review of Horizontal Drilling Technology for Methane Drainage From U. S. Coalbeds
Use of a Test Box to Measure Response Times for Machine-Mounted Monitors
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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