METHOD AND APPARATUS FOR MINING THICK COAL SEAMS WITH SUBLEVEL CAVING

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to the case and can be used with the powerful flat seams of the u043fu043eu0442u043eu043bu043eu0447u0438u043du044b. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - reducing loss u0443u0433u043bu00a0 and his u0440u0430u0437u0443u0431u043eu0436u0438u0432u0430u043du0438u00a0 changing the power and coal u043fu0430u0434u0435u043du0438u00a0 reservoir. the seizure of the u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u0435u0442u0441u00a0 u043fu043eu0441u043bu043eu0439u043du043e. first, u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 forth seizure u043fu043eu0434u0441u0435u0447u043du043eu0433u043e u0441u043bu043eu00a0 2 u043cu0435u0445u0430u043du0438u0437u0438u0440u043eu0432u0430u043du043du044bu043c complex, then u043eu0442u0434u0435u043bu00a0u044eu0442 u043fu043eu0442u043eu043bu043eu0447u0438u043du0443 3.the u043fu043eu0442u043eu043bu043eu0447u0438u043du044b 2 start, u0437u0430u0440u0443u0431u043du043eu0439 slits of width equal to 1 / 3 to 1 / 4 the height of u043fu043eu0434u0441u0435u0447u043du043eu0433u043e u0441u043bu043eu00a0 in u0437u0430u0440u0443u0431u043du043eu0433u043e bar. after that, with the help of u043fu043eu0434u0440u0435u0437u043du044bu0445 bars u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 division u043fu043eu0442u043eu043bu043eu0447u0438u043du044b vertical u0449u0435u043bu00a0u043cu0438 into blocks. the last u0440u0430u0437u0440u0443u0448u0430u044eu0442u0441u00a0, u043du0430u0447u0438u043du0430u00a0 with u043eu0441u043du043eu0432u0430u043du0438u00a0, bend u043fu043eu0434u0440u0435u0437u043du044bu0445 bars.a home run coal u0434u0440u043eu0431u00a0u0442, u043fu043eu0432u043eu0440u0430u0447u0438u0432u0430u00a0 bottom wall 27 u0433u0438u0434u0440u043eu0434u043eu043cu043au0440u0430u0442u0430 30 u043au0430u0447u0430u043du0438u00a0, and released u0434u043bu00a0 delivery u0437u0430u0432u0430u043bu044cu043du044bu0439 conveyor 32. depending on the u0438u0437u043cu0435u043du0435u043du0438u00a0 seams of the bars u0438u0437u043cu0435u043du00a0u044eu0442 through u0433u0438u0434u0440u043eu0434u043eu043cu043au0440u0430u0442u043eu0432 14 recovery and turnaround hollow frame 15. of the 27 may u0444u0438u043au0441u0438u0440u043eu0432u0430u0442u044cu0441u00a0 in different u043fu043eu043bu043eu0436u0435u043du0438u00a0u0445 and u0433u0438u0434u0440u043eu0434u043eu043cu043au0440u0430u0442 indicator 17 u0437u0430u0440u0443u0431u043du043eu0433u043e bar can u0443u0431u0438u0440u0430u0442u044cu0441u00a0 pocket hollow frame 15. 1.and one z. s - lu, 8).