Author:Raab, GADate:1974A knowledge of size distribution of the coal produced is of obvious interest to the coal industry and suppliers of mining and coal preparation equipment.Read more
Author:Erasmus, TCDate:1976The so-called reactivity index, a diminution of spontaneous combustion liability index, gives an indication of a coal's liability towards spontaneous combustion.Read more
Author:Erasmus, TCDate:1977Earlier studies have indicated that Umgala coal is prone to spontaneous heating and that ignition is likely to occur unless special precautions are taken during stockpiling.Read more
Author:Bonapace, ACDate:1977In this paper some hydraulic phenomena are discussed which are relevant to the hydraulic transport of particles in a fully suspended state.Read more