Obogashchenie Rud

The first article of this year is dedicated to ore preparation. Theanalytical review, prepared by the Chief Editor V.F. Baranov, describes main production equipment as well as design and spatial-layout solutions of the newest copper and copper-gold concentrating plants’ ore-preparation circuits, both operating, and being at design stage. Characteristic features of plants applying two competitive methods of ore-preparation: oresemiautogenous grinding (SAG) and grinding by high-pressure grinding rolls (HPGR), as well as problems arising in operation with application of the two methods, are considered.

Two more articles in this issue are also devoted to ore preparation — one publication is theoretical (the article by V.P. Malyshev et al.) and the other is of practical character (the article by А.N. Korovnikov et al.). The first article continues a series of articles of this group of authors, and is dedicated to ball millgrinding process kinetics. The second article describes the results of GST-72МТ screens full-scale testing in the “Apatit” ANOF-3 Concentrator ore-crushing section. The advantages of these screens over series-produced GIST-72 screens are shown.

The article by A.S. Kobzev is close to the above subject, mentioning the possibilities of radiometric methods of mineral separation, one of applications being large-batch sorting of minerals. The results of radiometric separation methods application for solution of various processing tasks are presented, and main problems of radiometric separation development in Russia are defined.

The article by S.A. Romanenko is devoted to new principles of flotation process laboratory studies by means of multi-sensor ionometry systems. Pulp electrochemical potential control by means of molybdenum electrode, employed together with laboratory studies’ results analysis by means of a neural network modeling method, permit to develop ore processing technology quickly and efficiently, and at minimal costs.

The article by A.V. Bauman describes the interesting experience in modernization of domestically produced radial thickeners. The author shows, that solutions of such problems as increase of clarification rate, solid phase thickening degree, area throughput rate, in many cases do not require cardinal renewal of equipment stock and are quite possible within available areas, and frequently with release of part of equipment from operation. By way of practical examples it is shown how to achieve a desired result under a specific-facility conditions, with minimal expenses and high efficiency.

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