The theory and practice of ore dressing

amount angle angle of friction angle of repose arrangement assay average bearings belt bins Blake boot bottom buckets capacity cent chalcocite classifier coarse Coeur d'Alene compartment concentrate conveyer copper cost crusher crushing machines crushing plant Crushing Roller Deister depth device diameter discharge elevator equal flat belt flow friction galena gangue grade grains greater grizzlies gyratory head pulley heavy horizontal inch increase iron length less load machinery magnetic material mesh metal metallurgist middling mill mineral mode motion obtained opening operation particles percentage pieces pipe plate plunger portion pressure quartz rate of feed ratio reduced removed revolutions per minute rhodonite riffles rock rolls sample sampler screen separation shaft shown in Fig side sizes slope specific gravity spider spout steel stream surface tailing tank tion tonnage tons trommel vanner velocity vertical wear weight width Wilfley zinc