Journals →  Gornyi Zhurnal →  2014 →  #10 →  Back

PROCESSING AND COMPLEX USAGE OF APATITE-NEPHELINE ORES
ArticleName Experience of fine screening introduction in apatite-nepheline ore milling circuit
ArticleAuthor Kalugin A. I., Gumenichenko K. M., Barabash A. Yu., Arsentiev S. S.
ArticleAuthorData

Author 1:
Name & Surname: Kalugin A. I.
Company: Apatit JSC (Kirovsk, Russia)
Work Position: Technical Director—Principal Engineer
Scientific Degree: Candidate of Engineering Sciences
Contacts: e-mail: AKalugin@phosagro.ru


Author 2:
Name & Surname: Gumenichenko K. M.
Company: Apatit JSC (Kirovsk, Russia)
Work Position: Chief of Apatite–Nepheline Processing Plant-3


Author 3:
Name & Surname: Barabash A. Yu.
Company: Apatit JSC (Kirovsk, Russia)
Work Position: Head of Production and Technical Service, Apatite–Nepheline Processing Plant-3


Author 4:
Name & Surname: Arsentiev S. S.
Company: Apatit JSC (Kirovsk, Russia)
Work Position: Head of Technical Support Service, Apatite–Nepheline Processing Plant-3

Abstract

In 2005 Apatit JSC trialed a screen manufactured by Derrick (model Stack Sizer 2SG48-60W-1STK) with a variable frequency drive on a semicommercial plant. The semicommercial and commercial trials demonstrated efficiency of the fine screening technology used in the ball milling circuit of ore preparation for flotation. The commercial operation revealed the increase in the milling output owing to reduced circulating load, increased coarseness of flotation feed and sufficient dissociation of apatite. From the mineralogical analysis, the amount of intergrown pieces of apatite and other minerals is substantially lower in the large size categories of the under-screen than in the same size categories of the cyclone discharge. As the result, +0.16 mm size content of the flotation concentrate is increased from 13–15% to ~30%. According to the grain-size composition, the apatite concentrate produced using the fine screening is close to the apatite concentrate grade Super (RF Technical Specifications 2111-37-00203938-96). The introduction of the fine screening and re-adjustment of the apatite-nepheline ore milling circuit towards maximum possible grain size with keeping the dissociation ability of intergrown pieces of minerals has ensured the optimized feed of ball mills MSHTS 55006500 with up to 400–420 t/h of ROM ore and improved the apatite concentrate production.

keywords Apatite-nepheline ore, milling, classification, fine screening, efficiency, size grade, apatite concentrate
References

1. Vaysberg L. A., Vyaltseva O. A. Gusarov Yu. G. Dmitriev A. A., Korovnikov A. N. Voprosy sovershenstvovaniya tekhniki i tekhnologii tonkogo grokhocheniya pri obogashchenii rud tsvetnykh metallov (Problems of improvement of technics and technology of fine screening in the time of concentration of non-ferrous metal ores). Sovershenstvovanie protsessov drobleniya, izmelcheniya, grokhocheniya i klassifikatsii rud i produktov obogashcheniya : sbornik nauchnykh trudov (Improvement of grinding, crushing and screening processes, and classification of ores and concentration products : collection of scientific proceedings). Leningrad : Mekhanobr, 1985. pp. 139–152.

2. Sukhova E. B., Streltsyn V. G., Konev V. A. Tekhnologicheskie osobennosti primeneniya tonkogo grokhocheniya v skhemakh izmelcheniya volframsoderzhashchikh rud (Technological peculiarities of application of fine screening in tungsten-containing ore grinding systems). Pererabotka kompleksnykh volframovykh, volframo-molibdenovykh rud i produktov obogashcheniya : sbornik nauchnykh trudov (Processing of complex tungsten, tungsten-molybdenium ores and concentration products : collection of scientific proceedings). Leningrad : Mekhanobr, 1988. 49 p.
3. Vaysberg L. A., Korovnikov A. N. Tonkoe grokhochenie kak alternativa gidravlicheskoy klassifikatsii po krupnosti (Fine screening as alternative of hydraulic classification according to coarseness). Obogashchenie Rud = Mineral processing. 2004. No. 3. pp. 23–34.
4. Brylyakov Yu. E, Kostrova M. A., Shishkin S. P., Golovanov V. G., Kalugin A. I. Primenenie grokhotov tonkogo grokhocheniya v zamknutom tsikle izmelcheniya apatit-nefelinovykh rud (Application of micro-screens in closed cycle of apatite-nepheline ores grinding). Sovremennye metody kompleksnoy pererabotki rud i netraditsionnogo mineralnogo syrya : sbornik trudov konferentsii «Plaksinskie chteniya-2007» (Modern methods of complex processing of ores and non-traditional mineral raw materials : collection of proceedings of the conference «Plaksin readings -2007»). Apatiry : Kola Science Center of Russian Academy of Sciences, 2007.
5. Kurteva O. I., Klassen P. V., Talmud M. M., Timofeev V. A., Maslennikov S. V. Issledovaniya v oblasti optimizatsii toniny pomola apatitovogo kontsentrata, ispolzuemogo v proizvodstve ekstraktsionnoy fosfornoy kisloty (Researches in the area of optimization of milling fineness of apatite concentrate, used in production of wet-process phosphoric acid). Trudy Nauchno-issledovatelskogo instituta po udobreniyam i insektofungitsidam = Proceedings of Research Institute for Mineral Fertilizers. 1991. Iss. 260. pp. 41–47.
6. Chernenko Yu. D., Angelov A. I., Levin B. V. Napravleniya optimizatsii kachestva Kolskogo apatitovogo kontsentrata (Ways of optimization of Kola apatite concentrate quality). Khimicheskaya promyshlennost = Chemical industry. 1999. No. 11. pp. 56–60.
7. Levin B. V., Angelov A. I., Golovanov V. G. Proizvodstvo i khimicheskaya pererabotka Kolskogo apatitovogo kontsentrata povyshennoy krupnosti (Production and chemical processing of Kola apatite concentrate with high coarseness). Khimicheskaya promyshlennost segodnya = Chemical industry today. 2005. No. 4. pp. 42–48.
8. Grinevich A. V. Zakonomernosti khimicheskogo rastvoreniya khibinskogo apatitovogo kontsentrata primenitelno k proizvodstvu ekstraktsionnoy fosfornoy kisloty (Regularities of chemical dissolution of Khibiny apatite concentareate, applied to production of wet-process phosphoric acid). Trudy Nauchno-issledovatelskogo instituta po udobreniyam i insektofungitsidam = Proceedings of Research Institute for Mineral Fertilizers. 2009. pp. 216–263.

Full content Experience of fine screening introduction in apatite-nepheline ore milling circuit
Back