Моделювання підходів подрібнення різнотипів руд конкретного родовища у кульових млинах замкненого циклу
Journal Title: Математичне моделювання - Year 2017, Vol 1, Issue 2
Abstract
MODELING OF THE APPROACHES OF MILLING THE DIFFERENT TYPES OF ORES SPECIFIC FIELD IN A BALL MILL CLOSED CYCLE Matsui A.N., Kondratets V.A. Abstract Taking into account that the non-optimal variant of grinding different types of ores of a particular deposit leads to a decrease in productivity, losses of the useful component and the growth of energy consumption, balls and lining, the topic of this article is relevant. The aim of this work is to simulate approaches for grinding various types of ores at a concentrating mill with certain characteristics of the field, aimed at finding an option for more optimal processing of raw materials. Achievement of the set goal implies the solution of the following tasks: analysis of the main technological characteristics of the deposit ores; modeling of approaches for grinding ores by ball mills and developing specific recommendations for their processing; justification of feasibility and possibility of providing grinding of ores in accordance with the proposed recommendations. The analysis showed that the ores in the deposit are of great variety and constitute a full range - from easily enriched to very heavily enriched. They are represented by seven types. Some types of ores have the same mean values of magnetite impregnation, the same values of the grindability factor and the average size of the magnetite impregnation, but it is proved that it is inexpedient to process them together. The greatest effect will be with the separate grinding of all seven types of ores. It is shown that such processing of ores can be carried out. In the basis of recognition of individual types of ores in the process of their extraction, it is expediently to put the specific magnetic susceptibility, but in addition it is necessary to use one more information factor. It is expediently to apply the recently proposed mobile crushing and sorting radiometric complexes, adapted to solve these problems. The preliminary dry enrichment of ores before grinding practically does not change anything, since they completely retain the properties of a particular type of mineral. Modeling has shown that it is expediently to crush ore separately, despite the external possibility of joint processing of some types. Separate grinding will ensure the highest efficiency and transition to more rational schemes of classification of individual types of ores in the process of their extraction. The prospect of further research is the modeling of a ball mill and a single-spiral classifier as controllable objects in permitting the processing of certain types of ores and the creation of efficient automated control systems for such processes. References [6] Linch A. Dzh. Cikly droblenija i izmel'chenija [Crushing and grinding cycles]. Moscow, 1981. 342 p. (in Russian). [7] Marjuta A. N. Avtomaticheskaja optimizacija processa obogashhenija rud na magnitoobogatitel'nyh fabrikah [Automatic optimization of the ore enrichment process at magnetic processing plants]. Moscow, 1987. 230 p. (in Russian). [8] Bilenko L. F. Zakonomernosti sovmestnogo izmel'chenija raznoprochnyh mineral'nyh komponentov [Regularities of co-grinding of various-strength mineral components]. Obogashhenie rud, 2000. no.1, pp.7–10. (in Russian). [9] Pivnjak G. G., Vajsberg L. A., Kirichenko V. I., Pilov P. I., Kirichenko V. V. Izmel'chenie. Jenergetika i tehnologija [Grinding. Energy and technology]. Moscow, 2007. 296 p. (in Russian). [10] Morozov V. V. Upravlenie processami obogashhenija na osnove izmerenija parametrov i ocenki sortnosti rud [Management of enrichment processes based on measurement of parameters and evaluation of grade of ores]. GIAB, 2005. no.7, pp.316–319. (in Russian). [11] Maslennikov V. G. [Rubber lining LLC "URAL FACTORY OF FERTILIZERS"]. IX Kongress obogatitelej stran SNG. Sbornik materialov. Tom II [IX Congress of Enrichers of the CIS countries. Collection of materials. Volume II]. Moscow, 2013. pp.375–380. (in Russian). [12] Davaasambu D., Jerdjenjecogt D. [Increase of efficiency of copper-molybdenum ores enrichment on the basis of optimization of crushing and grinding processes]. Sovremennye processy kompleksnoj i glubokoj pererabotki trudnoobogatimogo mineral'nogo syr'ja (Plaksinskie chtenija 2015): Materialy Mezhdunarodnogo soveshhanija [Modern processes of complex and deep processing of hard-to-digest mineral raw materials (Plaksinsky readings 2015): Proceedings of the International Meeting]. Irkutsk, 2015. pp.110–113. (in Russian). [13] Kuskov V. B., Sishhuk Ju. M. Sovershenstvovanie tehnologij obogashhenija zheleznyh rud razlichnyh tipov i veshhestvennogo sostava [Perfection of technologies for the enrichment of iron ores of various types and material composition]. Gornyj zhurnal, 2016. no.2, pp.70–74. (in Russian). [14] Hopunov Je. A. Novyj vzgljad na processy pererabotki mineral'nogo syr'ja [A new look at the processes of processing of mineral raw materials] Available at: http://technology.snauka.ru/2015/03/5944. (accessed 18.04.2015). [15] Abros'kin A. S. Primenenie sovremennyh sistem avtomatizacii na otkrytyh gornyh rabotah [The use of modern automation systems in open-cast mining]. Izvestija Tomskogo politehnicheskogo universiteta. Inzhiniring georesursov, 2015. no.12, pp.122–130. (in Russian).
Authors and Affiliations
А. М. Мацуй, В. О. Кондратець
Keywords
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