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Kryvyy Rih, Ukraine

Kharlamenko V.,Krivoy Rog National University
Metallurgical and Mining Industry | Year: 2014

There considered the method of identification of load moment on working rolls of break-down mill on blooming on the base of inverse dynamic problem with implementation of adaptation of model coefficients by Kachmazh modeling algorithm. © Metallurgical and Mining Industry, 2014/2. Source


Popov S.O.,Krivoy Rog National University | Malinowskii Y.A.,Krivoy Rog National University | Danilina G.V.,National Aviation University | Kozyrev S.N.,SE SPI Krivbassproekt
Metallurgical and Mining Industry | Year: 2015

The article describes the design features of the conveyor trains, their technological ability to perform transport operations in train and lines designs, productivity and efficiency of application, which are superior to the traditional modes of transport. The necessary development measures of the domestic version of this mode of transport are described. The material presented in this article refers to the possibilities, benefits, and ways of implementation of transport systems based on the conveyor train and substantiates the urgent need for rapid implementation of this mode of transport in the practice of domestic mining enterprises. Source


Lyalyuk V.P.,Krivoy Rog National University | Tarakanov A.K.,National Metallurgical Academy of Ukraine | Kassim D.A.,Krivoy Rog National University | Listopadov V.S.,ArselorMittal Krivoy Rog | Miroshnichenko O.N.,ArselorMittal Krivoy Rog
Metallurgist | Year: 2016

On blast furnaces that have never been operated with the injection of pulverized-coal and that first need to be provided with high-quality iron-ore-bearing materials and coke, the use of a technology that charges lump anthracite into the furnaces can significantly reduce coke consumption and the cost of making pig iron. The technology is especially effective if the furnace’s productivity is limited by problems in obtaining the desired finished product and it has to be operated at lower speeds or it runs more efficiently under such conditions. © 2016 Springer Science+Business Media New York Source


Shishkin A.,Krivoy Rog National University | Shishkina A.,Krivoy Rog National University | Vatin N.,Saint Petersburg State University
Applied Mechanics and Materials | Year: 2014

The article deals with the results from the analysis of the materials properties based on portland cement, polyalcohol and iron-bearing mineral assemblage. These materials are proved to possess higher compressive strength and lower shrinkage properties first and foremost, and besides they secure appropriate structural properties under a design project as well. On the grounds of the tests carried out it has been suggested to use the mix design of glycerin with portland cement and iron-bearing mineral assemblage with the purpose to obtain the material having the high compressive strength and most nearly lacking the shrinkage properties. © (2014) Trans Tech Publications, Switzerland. Source


Mulyavko V.I.,Krivoy Rog National University | Oleynik T.A.,Krivoy Rog National University | Oleynik M.O.,Krivoy Rog National University | Mikhno S.V.,Krivoy Rog National University | Lyashenko V.I.,Ukrainian Scientific R and D Institute for Industrial Technology
Obogashchenie Rud | Year: 2014

Two types of separators: triboelectric and magnetic, have been proposed and tested with respect to feebly magnetic ores separation, provid- ing for high operating efficiency owing to continuous separation process and design simplification. Possibility of production of concentrates with iron fraction of total mass reaching 60.6 %, recovery being 76.9 %, was verified. In beneficiation of oxidized quartzites, iron fraction of total mass in tailings amounts to 14.1 %. A new magnetic separator operating parameters, that provide for its higher efficiency and more reli- able functioning, are substantiated with regard to offset between rotational axes of drum and ferromagnetic cylinder, i. e., eccentricity, which allows to eliminate complex and unreliable systems for drum working surface regeneration and its fixation in operating position, thus making separation process continuous. In addition to that, rotation of magnetic system and drum working surface at similar linear speeds permits to recover even weakly-magnetic particles and intergrowths, composed of magnetic and non-magnetic material, from free-flowing material on the separator. The same is facilitated by heteropolar installation of magnetic elements with a clearance between their peripheral edges, thus increasing magnetic-field intensity gradient, i. e., force affecting particles in material flow. A triboelectric separator has been designed and tested; this type of separator provides for higher-intensity charging of particles and selective separation of positively charged particles. It was established, that an apparatus for effective separation of oxidized iron ore minerals needs to be equipped with several systems for charging and separation. Passing through them, separated material flow is totally cleaned from positively charged particles. Particles limit concentra- tion per unit volume has been calculated - when it is exceeded, the apparatus efficiency of operation decreases. Source

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