Author:Fourie, PJFDate:1965During November 1965 the FRI of SA was requested by a director Balgray Collieries (Pty) Ltd., to take a bulk sample of their run-of-mine anthracite at Balgray Colliery, Dundee for washability determinations.Read more
Author:Raab, GADate:1973Anthracite 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 ...Read more