Author:Sevenster, PG; Meintjies, AA; Van Den Berg, PJDate:1969In continuing the investigation into the causes of the lesser susceptibility of South African coal dust to explosion, attention has been given to the relationship between the petrographic of coals and their explosibility.Read more
Author:Moodie, B; La Grange, CCDate:1958By applying the Burstlein principle of controlled crushing and screening to coal from Blesbok Collier it is possible to obtain a product of lower ash and higher swelling number but it is probably preferable to effect these improvements in the ...Read more