Novolipetskii Metallurgical Combine NLMK

Lipetsk, Russia

Novolipetskii Metallurgical Combine NLMK

Lipetsk, Russia
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Kurunov I.F.,Novolipetskii Metallurgical Combine NLMK | Filatov S.V.,Novolipetskii Metallurgical Combine NLMK | Bizhanov A.M.,J. C. Steele & Sons Inc.
Metallurgist | Year: 2017

A mathematical model of the blast-furnace process developed by the MISiS is used to analyze the efficiency of a charge containing, in equal portions, coal-containing brexes made of iron-ore concentrate, superfluxed sinter, and non-fluxed oxidized pellets. Mathematical simulation shows that replacing 50% of sinter production by clean brex production will reduce the coke consumption by at least 10% and the dust and gas emissions of sintering plants by 50%. © 2017 Springer Science+Business Media New York


Filatov S.V.,Novolipetskii Metallurgical Combine NLMK | Kurunov I.F.,Novolipetskii Metallurgical Combine NLMK | Gordon Y.M.,Hatch Ltd. | Tikhonov D.N.,Novolipetskii Metallurgical Combine NLMK | Grachev S.N.,Novolipetskii Metallurgical Combine NLMK
Metallurgist | Year: 2017

Using coke with high strength after reaction in NLMK blast furnaces retarded refractory wear and intensified the process. Systematic nondestructive testing of refractory lining performed by Hatch Ltd. using the patented acousto ultrasonic-echo (AU-E) technique is another measure taken by the NLMK to ensure the safe operation and long campaign life of blast furnaces. AU-E measurements and thermocouple readings are used to develop preventive measures for protecting the refractory lining by charging shungite and titanium-containing materials. These measures allow reliable intensive operation of blast furnaces even at the end of a campaign life longer than 20 years. © 2017 Springer Science+Business Media New York


Korshikov G.V.,Lipetsk State Technical University | Filatov S.V.,Novolipetskii Metallurgical Combine NLMK | Kurunov I.F.,Novolipetskii Metallurgical Combine NLMK | Titov V.N.,Novolipetskii Metallurgical Combine NLMK | Mikhailov V.G.,Lipetsk State Technical University
Metallurgist | Year: 2015

This article refutes theoretical arguments that it is inexpedient to increase gas pressure in a blast furnace as a means of intensifying the smelting operation. The intensifying effect of higher gas pressure has been proven by the results obtained on three blast furnaces at the Novolipetsk Metallurgical Combine. The productivity of these furnaces increases by 0.7–1.2% for each 1% rise in top-gas pressure within the range 38–40%. It has been established that the increase in productivity is accompanied by an increase in head loss for the furnace as a whole. Head losses also increase by a ratio of 0.8:0.2 in the top and bottom of the stock, respectively. © 2015, Springer Science+Business Media New York.


Bizhanov A.M.,J. C. Steele & Sons Inc. | Kurunov I.F.,Novolipetskii Metallurgical Combine NLMK | Podgorodetskiy G.S.,Moscow Institute of Steel And Alloys | Nushtaev D.V.,TESIS Company
Metallurgist | Year: 2014

Physical and numerical modeling are used to study the mechanism of crack formation and fracture in extrusion briquettes (brex) loaded under different conditions. It is shown that under a static tensile load (splitting load) the briquette begins to fracture in its central part as a result of tensile stresses. The data obtained from mathematical modeling by the cohesive-surface method agree well with the findings of the physical experiment. Results are presented from modeling the fracture of a briquette dropped from a height of 1.5 m. © 2014, Springer Science+Business Media New York.


Kurunov I.F.,Novolipetskii Metallurgical Combine NLMK
Metallurgist | Year: 2015

The Seventh International Congress on Ironmaking was held in Cleveland (Ohio, U.S.) on May 3–7, 2015. The Congress was held simultaneously with the annual conference of the American Association of Iron and Steel Engineers, AISTech’2015, and the annual international exposition organized by the association. Papers on ironmaking were presented at the Congress and reports on steel production and rolling, environmental issues, information technologies, and industrial safety in ferrous metallurgy were delivered at the Conference. More than 800 people participated in the Congress, Conference, and exposition combined. Six presentations were given in the Congress’ plenary session and 198 presentations were delivered in the various sections. © 2015, Springer Science+Business Media New York.


Dolmatov A.P.,Novolipetskii Metallurgical Combine NLMK | Shipilov V.D.,Novolipetskii Metallurgical Combine NLMK | Chelyadinov A.A.,Novolipetskii Metallurgical Combine NLMK
Metallurgist | Year: 2016

Results: are presented from import substitution of Qwerl 275-2 temper-rolling fluid (Quacker Chemical B.V.) by domestic Volgol-350 temper-rolling fluid (VPO Volgokhimneft). A range of methods for evaluating the quality of temper-rolling fluids were developed in the course of testing. Lab studies and industrial testing of limited batches of Volgol-350 fluid made it possible to determine the optimum requirements for protective capacity, attainment of a clean surface on steel strip, and elimination of excessive lubricating properties. Volgol-350 temper-rolling fluid has been used in the production of cold-rolled products at the NLMK since 2006. © 2016 Springer Science+Business Media New York


Yaroshenko A.V.,Novolipetskii Metallurgical Combine NLMK | Khrapov G.A.,Novolipetskii Metallurgical Combine NLMK | Titov A.V.,Novolipetskii Metallurgical Combine NLMK | Tyulenev E.N.,Novolipetskii Metallurgical Combine NLMK | Dolgikh Y.N.,Novolipetskii Metallurgical Combine NLMK
Metallurgist | Year: 2016

This article examines the issue of reducing the amount of pig iron that is lost when the slag is pumped off during the iron’s desulfurization in BOF shop No. 1 at the Novolipetskii Metallurgical Combine, Tests were conducted of an alternative technology which employs a new desulfurizing agent to treat iron on the desulfurization unit. Results from the use of the new material are reported. © 2016 Springer Science+Business Media New York


Glebov V.P.,Novolipetskii Metallurgical Combine NLMK | Kononykhin G.N.,Novolipetskii Metallurgical Combine NLMK | Burkov D.V.,Novolipetskii Metallurgical Combine NLMK
Metallurgist | Year: 2016

Results are presented from work that was done to increase the service life of the submersible nozzles on a continuous caster at the Novolipetskii Metallurgical Combine and stabilize the steel-casting operation. © 2016 Springer Science+Business Media New York

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