METHOD OF SUPPORTING THE OPERATING DUTY AT LONGWALLS WITH MECHANIZED SYSTEMS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to the mining industry, in particular to a method u0441u043eu0437u0434u0430u043du0438u00a0 effective regime of mechanized systems / mc / mines years snow. the purpose of improving the efficiency of the mc in the range of negative temperatures.u0434u043bu00a0 u043eu0431u0435u0441u043fu0435u0447u0435u043du0438u00a0 mode of mk in u043bu0430u0432u0430u0445 first u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442 necessary speed u0434u0432u0438u0436u0435u043du0438u00a0 air in the lava on u0443u0441u043bu043eu0432u0438u00a0u043c u043fu0440u043eu0432u0435u0442u0440u0438u0432u0430u043du0438u00a0 control space, u0438u0437u043cu0435u0440 u00a0u044eu0442 length of lava. then cook a working solution u0434u043bu00a0 being in u0433u0438u0434u0440u043eu0441u0438u0441u0442u0435u043cu0443 mk by u0441u043cu0435u0448u0438u0432u0430u043du0438u00a0 u044du0442u0438u043bu0435u043du0433u043bu0438u043au043eu043bu00a0 with water. the percentage of u044du0442u0438u043bu0435u043du0433u043bu0438u043au043eu043bu00a0 choose u0441u043eu043eu0442u043du043eu0448u0435u043du0438u00a0 12 3Vu043f65,3 where v is the velocity of the air in the lava, m / c;p - u043au043eu043du0446u0435u043du0442u0440u0430u0446u0438u00a0 u044du0442u0438u043bu0435u043du0433u043bu0438u043au043eu043bu00a0 in water solution working fluid,%;3 is an empirical coefficient. the water is pre heated to 40 - between. the working solution is frozen and the entire length of u043eu0431u0435u0441u043fu0435u0447u0438u0432u0430u0435u0442u0441u00a0 temperature above the temperature u0437u0430u043cu0435u0440u0437u0430u043du0438u00a0.