Anthracite mined from four sections of the seam and hand-loaded into tubs arrives at the surface via the haulage adit. The total discard amounts to approximately 23 to 24 per cent, 3 to 4 per cent of which arrives from the picking belt. leaving a washery discard of 20 per cent.
Reference:
Raab, G. 1973. Size distribution of run-on-mine coal and washery feed - Balgray collieries Ltd. http://hdl.handle.net/10204/12945 .
Raab, G. (1973). Size distribution of run-on-mine coal and washery feed - Balgray collieries Ltd Retrieved from http://hdl.handle.net/10204/12945
Raab, GA Size distribution of run-on-mine coal and washery feed - Balgray collieries Ltd. 1973. http://hdl.handle.net/10204/12945
Raab G. Size distribution of run-on-mine coal and washery feed - Balgray collieries Ltd. 1973 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/12945
