Vezin Sampler

The Vezin Sampler can be used for primary or secondary sampling. It is a fully enclosed unit containing a rotating sample cutter that passes at constant speed through the falling stream of slurry or free flowing solids entering it. One of the 60 Automatic Samplers recently installed at the Quebec Cartier Mining Company. Vezin Samplers … Read more

Metallurgical Pilot Plant

The Metallurgical pilot concentration plant is completely equipped with gravity and flotation units sufficient to provide for practically any flowsheet employing these methods of concentration. All equipment for the pilot concentration plant is set for continuous operation. Due to movable launders, pumps, and flow pipes, extreme flexibility is available. Crushing: Ore is prepared in the crushing, … Read more

Slurry Flow Rate Through a Mill

The factors upon which the rate of flow of the pulp through a mill depends appear not to have received extensive investigation. In an article by Anselm translated by Pearson a method for the calculation of the time of passage of cement through a ball mill was given. The basis of the method is that the … Read more

Effect of Pulp Rheology on Grinding Mill Power

The dependence of the power demand of a mill on the nature of the pulp does not appear to have received a great deal of study, and, in general, observations on this matter take the form of general statements. For example, Taggart states that, other things being equal, wet milling requires 60-90 % of the power … Read more

Dry Grinding VS Wet Grinding

The choice between wet and dry milling is, in general, unimportant in small-scale milling but is a major technical problem when large-scale milling in the metallurgical industries is involved. On purely mechanical grounds it is difficult to see any great difference in fundamental principles between wet and dry milling, since dry milling may be regarded … Read more

Air Swept Mill

In an air-swept mill, the body of which does not differ significantly in general design from a trunnion overflow mill, a powerful stream of air is passed through the mill and removes the finer particles produced by the grinding process. This stream of powder-laden air is then passed through the classifier and the “oversize” material, … Read more