Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia:

A. S. Kharchenko, Dr. Eng., Associate Professor, Head of the Dept. of Metallurgy and Chemical Technology (MChT), e-mail: as.mgtu@mail.ru
S. K. Sibagatullin, Dr. Eng., Prof., Dept. of MChT
V. I. Sysoev, Postgraduate Student of MChT
S. V. Oskolkov, Senior Lecturer, Dept. of Heat Engineering and Energy Systems

Technological parameters for the production of sinter from titanomagnetite ores of the Suroyam deposit in the Chelyabinsk region have been developed. For this, concentrates with a content of up to 63.3 % Fe were obtained from experimental batches of ores, and agglomerates were obtained from them. The studies were carried out in order to increase the reliability and visibility of the results of agglomeration by comparing the Suroyam concentrate with an analogue concentrate that has an industrial implementation. The optimal moisture content of the charge, including the Suroyam deposit`s concentrate, was 8%. At a given charge moisture content, carbon content of 4.5 % and basicity of 1.6, the specific productivity of the sinter plant was 1.089 t/(m²∙h), which is 3.8 % more when sintering the charge with a moisture content of 7.5 % and 29.2 % more when sintering the charge with a moisture content of 8.5 %. With a basicity in the range of 1.6–1.8, a charge moisture content of 8 %, and a carbon content of 4.5 %, the yield of suitable sinter averaged 80.0 %, and the specific productivity was 1.100 t/(m²∙h). The quality indicators of the agglomerate are as follows, %: impact resistance 70.1; destruction 25.3; abrasion 5.1. With a basicity of 1.8, the yield of suitable sinter according to the +5 mm class and the specific productivity were 92.6 % and 1.641 t/(m²∙h), respectively, which is 0.9 and 3.41 % (rel.) higher than the figures obtained when sintering an agglomerate with similar parameters from an analogue concentrate having an industrial implementation.
The article was prepared with the support of the grant of the President of the Russian Federation No. MD-1064.2022.4.

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