Heavy mineral process circuits combine a number of process machinery used in different steps of desliming, classification, separation, beneficiation, enrichment, and dewatering of the desired products. The right choice of equipment has an impact on the technical and economical feasibility of today’s and future projects. Not only the capital investment and operational costs but also … Read more

It is also fairly well-known, that it is by far much more difficult to achieve high efficiency with dry classifying than with wet. Hence, it is highly desirable to create conditions for improving the dry air classifying methods, so that the high energy consumption associated with producing fine dry powders can be minimized. Particle Size … Read more

In conventional closed circuit grinding practice including classification in one hydrocyclone, or in a group of hydrocyclones in parallel, classification takes place in a single stage. Under conditions where the fineness of the overflow product is expressed e.g. as 95 % – x microns, the normal sharpness of size separation (recovery) at size x into … Read more

A series of tests on a 24 inch hydrocyclone operating on a copper ore slurry were run. The ore was selected so as to be reasonably homogeneous with regard to the density of components so that particle size differences dominate the classifier action. The primary variables were % solids (and associated viscosity readings), the feed … Read more