PROCESSING OF POTASSIC SEAMS Russian patent published in 2014 - IPC E21C41/20 

FIELD: mining.

SUBSTANCE: proposed method comprises chamber seal mining, working the chamber entrance from development entry, excavation of rock interlayer and shearer mining of the seam productive seams. Advance cutting of rock interlayer from the seam is performed by blasting. Mining of seam productive layer is performed by shearer mining in radial passes to design width of working chamber. The, the miner is moved to initial position of radial pass. Cut rock interlayer is placed at the soil of worked chamber.

EFFECT: possibility to work potassic small-thickness seams using the miner, ruled out replacement of digging hardware, lower costs of handling jobs.

2 cl, 3 dwg