Dewatering Screw Classifiers

Dewatering Screw Classifiers once had a wide vogue and still are used in some pulp circuits. They were more or less troublesome because solids tended to accumulate on the sloping sides, sloughed off periodically, and plugged the discharge in the apex; the sand discharged was too dilute and contained too much slime; and sand was … Read more

Water Balance Management

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High Clay Tailings Filtration

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The practice of thickening or clarification is usually carried out in decantation tanks employing gravity settling or sedimentation. These tanks are fitted with mechanical scrapers to collect and move the settled solids to the point of discharge, the clear overflow being collected and removed by means of peripheral launders. These tanks, equipped with mechanical scraping … Read more

Clarifying Filter

The Clarifying Filter is used to remove turbidity from practically any liquid. It can be used to remove either suspended solids or colloidal and dissolved solids, with the aid of an adsorbing agent. In certain cases a filter bed of porous material is used having decolorizing properties. In the majority of cases in metallurgical plants the filter … Read more

Rotary Dryer Design & Working Principle

For evaporating moisture from concentrates or other products from plant operations, Rotary Dryers are designed and constructed for high efficiency and economy in fuel consumption. Whenever possible to apply heat direct to the material to be dried, Rotary Dryers of the Direct Heating Design are used. If it is not possible to apply heat direct to … Read more


Hydroclassifiers are solving the most difficult fine sizing and desliming problems by combining high metallurgical efficiency in a rugged, well- built machine to accurately fulfill the exacting conditions required. Accurate separations can now be made in the 100 mesh range and finer. This fine separation requires considerable classification area per ton as well as minimum … Read more

Thickener Drive Speed Reducer

The Integral Lift Vertical Worm Gear-Box Speed Reducer is used on Center and Side Air-lift Agitators, Hydroclassifiers, and on thickeners in many mills and industrial plants where it is necessary to have a simple, compact, totally – enclosed, self-lubricated reduction unit. This unit is widely used to step down speeds of high-speed motors to the slow … Read more

Spiral Rake Laboratory Thickener

The Spiral Rake Laboratory Thickener, for continuous ore testing laboratories and ore dressing and industrial pilot plants, is built as a laboratory unit that embodies the same principles and produces the same results on a small scale as the commercial size Spiral Rake Thickener. Various diameters, from 3 feet up to commercial size units are … Read more

Laboratory Slurry Filters

Slurry Pressure Filter With the Slurry Pressure Filter it is possible to dewater a great number of mill samples every day. The quantity of pulp to be filtered at each operation will determine the size best suited for your requirements. Because of an ingenious arrangement of the yoke, it is impossible to open the filter without … Read more