FIELD: mining.;SUBSTANCE: mining method by large blocks includes advanced formation of bed underbreaking by plough machine with movement of conveyor into it for output of rectangular blocks of mineral cut from long face above it by cutting longitudinal and lateral slots with the use of supports. The output of alluvial mineral from plough operation is done by separate chain-and-flight conveyor. Plough operation in ripping lip is done simultaneously with cutting mineral blocks from the bed upper part by cutting longitudinal and lateral slots by cutting machines and loading of mineral blocks extracted from long face by transfer platform as well as their locomotive haulage from long face to the point of their discharge into grinding chamber.;EFFECT: invention provides multiple increase of mining face productivity in comparison to the existing level, creation of safe by gas factor and ecologically pure by dust production.;6 cl, 15 dwg
展开▼
