Disintegration of iron ore in ball mills with rubber lining

Kalashnikov V.A., Golovko L.G., Stoiko A.V., Dyrda V.I., Khmel I.V.

Authors:

Kalashnikov V.A., M.S (Tech.) (Valsa-GTV Ltd.),
Golovko L.G., M.S (Tech.) (Valsa-GTV Ltd.),
Stoiko A.V., M.S (Tech.) (Valsa-GTV Ltd.)
Dyrda V.I., D. Sc. (Tech.), Professor (IGTM NAS of Ukraine),
Khmel I.V., Ph. D. (Tech.) (PJSC «SevGOK»)

UDC 622.23:05459

Language: Russian

Abstract.

Since the second half of the last century, rubber was used as protective lining, which was promoted by its unique properties. One of the leading companies in the field of creating and supplying of rubber liners for all existing types of ball mills was the company Valsa-GTV LLC (Bila Tserkva, Ukraine). This was facilitated by the following: availability of high-tech modern equipment, development of optimal designs for the lining elements, special rubber grades and professional support of operation of the mills with the company’s liners. Important in this case was also the use of fundamental achievements in the field of the mill dynamics and rubber mechanics. The created theory of the wave abrasion-fatigue wear of the rubber lining, methods for the lining calculation and methods for the elements laying out in the drum allowed mechanical and manufacturing engineers to create the liners of the «Wave» type (brands in the market of services: «Plate‑Wave», «Plate‑Lifter‑Wave», «G.M‑Wave» and «Plate‑H‑Wave»). Regularity of wave wear of the rubber lining is described in terms of its interdependence with load inside the mill. It is shown that relief of the lining to some extent depends on the structure of the material stream and is an imprint of the structural formations of the stream turbulence; the forming new reliefs of the lining surface are associated directly with velocity fluctuations and linear correlation between the instantaneous velocities, which determine rate of the turbulence. In the end, such hydromorphological characteristics of the stream and such morphometric relief of the lining working surface appear, at which the stream applies minimum energy and minimum energy dissipation to overcome all of the obstacles. The main components of the new resource- and energy-saving technology of ore grinding in the ball mills are described. New designs of the rubber liners of the «Wave» type for all types of the ball mills and for all stages of raw mineral grinding are considered.

Keywords:

Rubber lining, ball mills, wave wear, resource- and energy-saving technology

References:

1. Dyrda, V.I., Zozulya, R.P., Khomenko, O.N. and Khmel, I.V. (2016), Rezinovyyefuterovkitekhnologicheskikhmashin [Rubber linings of technological machines], Dnipro, Ukraine.

1. Eriksson, K.-G., Marklund, G., Grebeneshnikov, A.P., Fishchev, V.Yu. (2010), Mill linings systems development, Mining industry, no. 1.

2. Maliarov, P.V., Sysoev, N.I. and Skliarov, E.V. (2013), “Investigation of wear of lining plates of ball mills at Talnakh Concentration Plant”, Obogashchenie rud, no. 3, pp. 6-9.

3. Dyrda, V.I., Kalashnikov, V.A. and Khmel, I.V. (2014), “Energy-saving ES-technology for disintegration of ores in ball mills with rubber lining”, Chernaia metallurgiia, no. 2 (1370), pp. 22-26.

4. Kalashnikov, V.A., Golovko L.G., Dyrda, V.I., Stoiko A.V. and Khmel, I.V. (2016), “Rubber lining of ball mills in new resource and energy-saving technology of crushing hard ores”, Chernaia metallurgiia, no. 1 (1393), pp. 70-74.

About the authors:

Kalashnikov Vyacheslav Alekseevich, Master of Science, Director Valsa-GTV Ltd., Bila Tserkva, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Golovko Lubov Grigogievna, Master of Science, Chief Engineer in Valsa-GTV Ltd., Bila Tserkva, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Stoiko Aleksei Viacheslavovich, Master of Science, Chief designer in Valsa-GTV Ltd., Bila Tserkva, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Dyrda Vitaly Illarionovich, Doctor of Technical Sciences (D. Sc.), Professor, Head of Department of Elastomeric Component Mechanics in Mining Machines, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Khmel Irina Vitalyevna, Candidate of technical sciences (Ph. D.), Chief Enricher, Northern Mining and Processing Plant, Kryvyi Rih, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.