Fire-resistant fluids— their application in British mines
CIM Bulletin, Vol. 72, No. 806, 1979
M. B. MYERS, Chief Engineer, Century Oils Limited, Hanley, Stoke-on-Trent, England
The subject matter of this paper will be discussed under three main headings.1.—Fire-Resistant Fluids: (a) the need for such materials, based on historical events; (b) a definition of fire-resistant fluids; (c) general description, characteristics, operational parameters, advantages and disadvantages of oil-in-water emulsions (HFB), water-polymer fluids (HFC) and anhydrous or synthetic fluids (HFD).2.—A review of equipment associated with the use of fire-resistant hydraulic fluids; (a) performance testing of hydraulic equipment, i.e. gear pumps, vane pumps, axial and radial piston pumps, hydraulic motors, etc., pressure, speed, filtration limitations, etc., and effects on valves, elastomers, paints, etc.; (b) hydraulic system design features and selection of suitable units; (c) types of mining applications currently employing fire-resistant fluids.3.—Test methods used to evaluate fire-resistant fluids: (a) fire testing methods, i.e. wick tests, spray ignition testing, hot manifold tests, factory mutual tests, all to establish fire-resistancy parameters and acceptance; (b) new developments in fire-resistancy evaluation; (c) the examination of other performance tests, e.g., effects of evaporation, sliding wear, life of rolling element bearings, etc.
Underground mining, Fluids, Fire resistance, Lubrication, Hydraulic fluids, Pumps, Motors, Equipment, Bearings, Emulsions.