METHOD FOR DETERMINING SELF-IGNITION SUSCEPTIBILITY OF COAL

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 of u043fu0440u043eu0433u043du043eu0437u0438u0440u043eu0432u0430u043du0438u00a0 safety in the coal industry, namely, to ways of u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 inclination to u0441u0430u043cu043eu0432u043eu0437u0433u043eu0440 stone coal u0430u043du0438u044e. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - increased reliability, reduced labour intensity and the simplification of u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0. u043fu043eu043bu00a0u0440u0438u0437u0430u0446u0438u044e samples of u043fu0440u043eu0432u043eu0434u00a0u0442 at room temperature u044du043bu0435u043au0442u0440u043eu0441u0442u0430u0442u0438u0447u0435u0441u043au0438u043c field u043du0430u043fu0440u00a0u0436u0435u043du043du043eu0441u0442u044cu044e 11 - 13 kv / cm for 50 to 60 minutes.then the samples are heated to 70 to 80 & deg; c and u0438u0437u043cu0435u0440u00a0u044eu0442 u0442u0435u0440u043cu043eu0441u0442u0438u043cu0443u043bu0438u0440u043eu0432u0430u043d out current u0434u0435u043fu043eu043bu00a0u0440u0438u0437u0430u0446u0438u0438, the largest of which u0441u0443u0434u00a0u0442 on propensity to spontaneous combustion.the value of u0442u0435u0440u043cu043eu0441u0442u0438u043cu0443 - u043bu0438u0440u043eu0432u0430u043du043du043eu0433u043e current u0434u0435u043fu043eu043bu00a0u0440u0438u0437u0430u0446u0438u0438 greater coals u043eu0442u043du043eu0441u00a0u0442 category u0441u0430u043cu043eu0432u043eu0437u0433u043eu0440u0430u044eu0449u0438u0445u0441u00a0; when the value is less 5u00ab 10 and to the category of business u043cu043eu0432u043eu0437u0433u043eu0440u0430u044eu0449u0438u0445u0441u00a0; intermediate u0437u043du0430u0447u0435u043du0438u00a0u0445 amperage coals u043eu0442u043du043eu0441u00a0u0442 as prone to spontaneous combustion. with $(l