发明名称 |
METHOD FOR UNMANNED EXTRACTION OF THICK, OVER 30 METERS, SLOPING COAL FORMATION |
摘要 |
FIELD: mining industry, possible use for underground extraction of thick sloping coal formation. ^ SUBSTANCE: method includes driving field preparatory mines and extracting coal in directional layers by long faces with usage of cleaning mechanized complexes and with backfill of extracted space. Separation of coal is performed simultaneously in four vertical round section furnaces from soil to formation roof by screw-hammer circular organs with collapsible lining and feeding mechanism, mounted on ventilation drift, after that by one of screw-hammer circular organs body between furnaces is terminated. Coal is lowered along spiral transporting chute, positioned in each furnace. In backfill material of four furnaces channel is expanded for lowering coal and channel for letting people into face for column termination and backfill of excavated space. ^ EFFECT: decreased coal losses. ^ 2 cl, 10 dwg |
申请公布号 |
RU2299984(C1) |
申请公布日期 |
2007.05.27 |
申请号 |
RU20050139368 |
申请日期 |
2005.12.16 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "ROSSIJSKIJ UNIVERSITET DRUZHBY NARODOV" (RUDN) |
发明人 |
MASHKOVTSEV IGOR' L'VOVICH;DEB SAUMITRA NARAJAN;SHEJKH ATIKUR RAKHMAN;ZAKIR KHOSSAJN;G.M. ZAKIR KHOSSAJN;STANIS ELENA VLADIMIROVNA;ZAKHAROVA ANASTASIJA ANATOL'EVNA |
分类号 |
E21C41/18 |
主分类号 |
E21C41/18 |
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