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Krasnoural’sk, Russia

Kashcheev I.D.,Ural Federal University | Zemlyanoy K.G.,Ural Federal University | Malikov Yu.K.,Ural Federal University | Sablin A.E.,SVYATOGOR JSC
Tsvetnye Metally | Year: 2014

Refractory materials, used in the working layer of lining, play the most important role in duration and reliability of reverberatory copper smelting production furnaces. Application of new and more qualitative refractory products is required for increasing of operational and economic characteristics and improvement of lining. The pilot tests of the following types of refractory materials were carried out in lining of reverberatory furnace of "Svyatogor" JSC: MLP materials (mullite dense, MJIII), PShPTs-80 materials (periclase-spinel brick, IILLIIILI-80), C-104 materials, KMTs materials (corundum-mullite zirconium, KMLI) and KhATs-30 materials (chromium-aluminium-zirconium, XALI-30). There was established that products received the following residual length after service: 125 mm - C-104; 40 mm - MLP; 180 mm - PShPTs-80; 150 mm - KhATs-30; 126 mm - KMTs. The main destructive factors in reverberatory copper smelting furnace are sudden changes in temperature and chemical effects from fayalite slag (31-36% (wt.) of SiO 2, 32-38% (wt.) of FeO, 7-10% (wt.) of Fe2O3, 4-8% (wt.) of CaO, 1-4% (wt.) of MgO, 1-3% (wt.) of S, 0,02-0,6% (wt.) of Cu, 3-5% (wt.) of Zn and 0,1-0,3% (wt.) of Pb) and charge pulverized raw materials with high process temperatures. Unmodified and working zones are formed during the pilot operation in the products. These zones are different by chemical and phase composition and content of glass phase. Number of glass phase in MLP products is 35-40%, while number of glass phase in KhATs-30 and KMTs products is in the range of 10-15%. At the same time, amount of glass phase in fused refractory materials C-104 is no more than 3-5%. Glass phase is not found in the PShPTs-80 products. Absorption of iron oxides in the PShPTs-80 products forms the complex solid solutions (Mg,Fe)O(Al,Fe) 2O3 on the basis of noble spinel (MgOAl2O3) and, as a consequence, absence of liquid phase. The content of MgOAl2O3 spinel ensured the improved thermal and operational resistance to the PShPTs-80 products. Source


Panshin A.M.,Ural Mining and Metallurgical Company Holding | Viduetskiy M.G.,RAS Institute of Metallurgy | Maltsev V.A.,RAS Institute of Metallurgy | Sokolov V.M.,SVYATOGOR JSC | Bondarev A.A.,SVYATOGOR JSC
Tsvetnye Metally | Year: 2013

There was developed the design of high-productive pneumatic columnar flotation machines CFM (), which provides the usage of two aeration zones. These flotation machines are intended for concentration of the wide range of ores and anthropogenic raw materials. There was realized the introduction of pneumatic flotation machine CFM-1400M (-1400?) in operation of the I cleaner flotation at the concentration plant of Svyatogor JSC, where complex pyritic ores and easy copper ores are processed. Flotation machine CFM-1400M provided the high indices on extraction of copper in operation of the I recleaning during the concentration of both complex pyritic ores and easy copper ores. There was researched the application of complex flotation machines during the concentration of zinc cakes of Chelyabinsk Zinc Plant. Pneumatic apparatus, equipped with ejecting unit CFM, was proposed to be used instead of mechanic flotation machines for intensification of the processes of washing of cake from water soluble forms of zinc and acceleration of sulphides flotation. There were held the comparative trials. Washing of water soluble compounds in cake was held in mechanical flotation machines and in apparatus, equipped with ejecting unit. Researches showed the advantage of apparatus with ejecting unit: the dissolution rate of sulphate forms of zinc is by 10 and more times higher, than in mechanic flotation machine. Source


Panshin A.M.,Ural Mining and Metallurgical Company Holding | Viduetskiy M.G.,RAS Institute of Metallurgy | Maltsev V.A.,RAS Institute of Metallurgy | Sokolov V.M.,SVYATOGOR JSC | Bondarev A.A.,SVYATOGOR JSC
Tsvetnye Metally | Year: 2013

The developed design of high-productive pneumatic columnar flotation machines CFM () defines the usage of two aeration zones. The first zone formes the airfloccules, which consist of micro bubbles. The amount of these bubbles is by 30 times more than similar formations in other designs. The machines are equipped with modern automatic systems, based on the programmed controllers with finger tip control, which make it possible to maintain the set parameters. In comparison with the columnar flotation machine CFM-1400VMG (-1400), the pneumatic columnar flotation machine FP 80 (80) has smaller size of work chamber (by 5 times) and smaller height (by 2 times). By-turn, the columnar flotation machine CFM-1400VMG has more high production efficiency than the pneumatic columnar flotation machine FP 80 (by 2 times, both by the initial pulp, and by froth). The columnar flotation machine CFM-1400 (-1400) was introduced at the concentration plant (Svyatogor JSC), which processes the pyrrhotite containing copper-zinc ores, which are difficult for concentration. During the concentration of such copper-zinc ores, the pneumatic columnar flotation machine CFM-1400M (-1400?) presented itself as high-efficient flotation apparatus, which simultaneously accelerate the flotation of copper, zinc minerals and depressing pyrrhotite. Due to the introduction of columnar flotation machine, there was succeeded to increase the extraction of copper (by 3.4%), zinc (by 5.5%), with simultaneous increasing of the quality of copper (by 3% of copper) and zinc (by 1.5% of zinc) concentrates. Taking into account the positive effect from the introduction of the first machine, two addition apparatuses were assembled in 2012, in the concentration scheme of this ore:-one apparatus in the cycle of copper flotation for increasing of the copper concentrate quality and obtaining of the pyrrhotite-containing product, which has less copper and zync;-one apparatus in the cycle of the zinc head flotation. Source

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