Author:Bonapace, AC; du Toit, PDate:1975Some physical expressions relating the parameters of the magnetic field have been derived. A description of the magnetic field was carried out by measuring the magnetic flux intensity at various points along the drum circumference and at ...Read more
Author:Vogel, JCDate:1938The high capital cost of coal hydrogenation plant makes it essential that oil output be maintained at high level as possible as this factor must primarily govern the choice of the coal to be used or the decision as to whether as coal is ...Read more
Author:Gaigher, JLDate:1976This report discusses an investigation of radio frequency ashing, micro-sieving in an ultrasonic bath and X-ray diffraction analysis, it is possible to determine the grain-size distribution of the mineral matter in a coal sample.Read more
Author:Heim, FO; Clark, DDate:1978This report discusses about an investigation which was aimed at improvement in fuel efficiency as a means of reducing smoke emission.Read more
Author:Saler, ADate:1972The investigation was undertaken as a preliminary study of the 4" Compound Water Cyclone, with regard to its separation efficiency, range of yields obtained and throughput capacity. The main purpose behind this work was to gain some experience ...Read more
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