Transactions . l problem that is interesting and impor-tant at the present day is its mental aspect. Companies have beenproviding better homes, facilities for recreation, good milk for children,good schools and things of that sort, but have not given sufficient studyto the mental attitude of the worker; making the doing of a good joba matter in which he finds pleasure and happiness. That is going to beone research field in coal mining. It is the one on which we know theleast and on which a great deal of work must be done in order to bringabout the proper understanding and control of the proble
Transactions . l problem that is interesting and impor-tant at the present day is its mental aspect. Companies have beenproviding better homes, facilities for recreation, good milk for children,good schools and things of that sort, but have not given sufficient studyto the mental attitude of the worker; making the doing of a good joba matter in which he finds pleasure and happiness. That is going to beone research field in coal mining. It is the one on which we know theleast and on which a great deal of work must be done in order to bringabout the proper understanding and control of the problem. 768 SOME FACTORS THAT AFFECT THE WASHABILITY OF A COAL Some Factors that Affect the Washability of a Coal* BY THOMAS FRASER,t AND H. F. YANCEY, { URBANA, ILL. (Chicago Meeting September, 1919) Because of the present interest in the subject of sulfur in coal and itsremoval, such information as is available in the coal-washing literatureon the various factors that determine the adaptability of a coal for wash-. FiG. 1.—Coal-washing of one-fourth commercial size. ing have been collected and are presented here together with someobservations based on results of experimental work carried out in thecoal-washing laboratoiy of the mining department of the University ofIllinois, and investigative work at Illinois washeries in connection withthe work on reduction of the sulfur content of coal, being carried on atthe Urbana Station of the U. S. Bureau of Mines. This investigative * Published with the permission of the Director, U. S. Bureau of Mines,t Assistant Mining Engineer, U. S Bureau of Assistant Chemist, U. S. Bureau of Mines. THOMAS FRASER AND H. F. YANCEY 769 work consisted of the examination and sampling of commercial washeries,the chemical and phj-sical examination of raw and washed coals, andcoal-wasliing tests with jigs and wasliing tables of one-fourth commercialsize. The tables used are shown in Fig. 1. The writers have not had awide experience in commer
Size: 1810px × 1381px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
