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Abstract
In the laboratory of the Department of Metallurgy and Chemical Engineering of the Nosov Moscow State Technical University, the study was conducted to study the possibility of improving the quality of agglomerate obtained from a batch including high-magnesia siderite ores by replacing some of them in the composition of the raw material mixture with magnesia ores from the Bapy deposit while maintaining a constant magnesium oxide content. The replacement was carried out while maintaining the magnesium oxide content in the batch at 2.20% and the total amount of sintering ore at 16.4% of the total dry batch weight. A number of indicators improved when the composition of the batch materials changed. An increase in the size of the pelletized batch from 2.91 to 4.21 mm (by 44.6%) together with an increase in the impact resistance of green granules caused a decrease in the resistance coefficients of the batch layer to the passage of a gas flow. As a result, the vertical sintering rate of the agglomerate increased. The combined increase in the yield of suitable agglomerate from 89.0 to 91.4% (by 2.7% (relative)) and the vertical sintering speed from 21.0 to 22.0 mm/min (by 4.7%) resulted in an increase in the specific productivity of the sintering machine for suitable agglomerate from 1.457 to 1.622 t/(m2·h) (by 11.3%).
Keywords:
agglomerate quality; magnesium oxide; siderite; Bapa deposit; yield of suitable agglomerate; sintering speed; specific productivity of the sintering machine
Kharchenko Alexander S. – ScD, head of the metallurgy and chemical technologies department of Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Sibagatullin Salavat K. – ScD, professor of the metallurgy and chemical technologies department of Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Sysoev Viktor I. – PhD, Assistant-professor at the Department of Metallurgy and Chemical Technologies of the Metallurgy, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Logachev Grigoriy N. – Post-graduate student at the Department of Metallurgy and Chemical Technologies of the Metallurgy, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail:
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Reshetova Irina V. – Assistant-professor at the Department of Metallurgy and Chemical Technologies of the Metallurgy, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Kharchenko Elena O. – PhD, Senior Lecturer at the Department of Metallurgy and Chemical Technologies of the Metallurgy, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Sviridova Milena A. – Undergraduate student at the Department of Metallurgy and Chemical Technologies of the Metallurgy, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. E-mail:
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