FIELD: mining.
SUBSTANCE: method for coal extraction using dynamic plough involves cutting of deep advance slots in formation mass at the roof, soil and middle, working face, and further destruction of mass in two consoles weakened with slots are performed by shearing; at that, width of cut slot and cutting depth of consoles is set and adjusted along the strike due to turning angle relative to working face of actuator with cutting tool the cutters of which describe ellipsis trajectory, and shearing force is created due to external taper surface of actuator housing when the plough is being moved along the working face.
EFFECT: improvement of coal extraction controllability on coal formations with complex structure; increase in depth of removed chips.
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Authors
Dates
2012-09-20—Published
2008-04-21—Filed