Longwall shearers cut away the face of a coal seam in longwall mining operations by mounting over an armored face conveyor (AFC). They are equipped with cutting drums positioned against the coal seam ...
The Raspadskaya-Koksovaya mine, part of PJSC Raspadskaya , has launched a longwall with reserves of 870,000 tonnes of coking coal, the group's press service said. There are plans to exhaust the ...
It was literally undermined in August 2020, when a 305-metre wide longwall for coal mining was tunnelled underneath for almost two kilometres. By the following month, the swamp had fully drained.