Improved Fire Safety of Coal Mine Hydraulic Systems

摘要

An advanced water-in-oil emulsion hydraulic fluid has been developed that meets defined laboratory performance criteria and gave fully satisfactory results in a 1-year underground mine test in two continuous miners. A novel method of monitoring fluid water content was demonstrated and incorporated into a test kit for use at or near the mine site. Test fluid fire resistance integrity as measured by the Mining Safety and Health Administration schedule 30 procedure was maintained during the test, and important fire resistance test variables were identified.