Analysis of complex properties of manganese ores and sludges as well as possibilities of their pelletizing for obtaining manganese ferroalloys

Authors

DOI:

https://doi.org/10.32782/2225-6733.43.2021.14

Keywords:

manganese concentrate, ferroalloys, dissociation, reduction, value of raw materials

Abstract

The results of differential thermal analysis of samples of oxide, oxide-carbonate and carbonate ores and concentrates have been obtained. A study for sintering the agglomerate using high-intensity magnetic separation concentrate has been carried out. The comparison of technological parameters of the agglomeration process with the use of high-intensity magnetic separation concentrate in an unprepared form and with its preliminary pelletization has been performed. Comprehensive studies of the chemical and mineralogical composition of industrial saws and sludges at JSC «Nikopol Ferroalloy Plant» have been performed in order to develop technological schemes and processes of their reuse. The research has determined the physical properties of industrial sawdust and sludge, has worked out the modes of their pelletizing and agglomeration. The modes of filtering and pelleting of the raw pellets obtained from dust and sludge of current production of ferroalloys have been tested. The possibility of obtaining calcinated pellets suitable for smelting standard alloys has been investigated. The process of obtaining manganese granules for further agglomeration has been tested on a bowl moulder with a diameter of 5.5 m. The optimal modes of granule formation with a diameter of 3-5 mm, which have the highest technological indicators, have been worked out. The agglomeration process was tested using granules with a diameter of 2-8 mm with a change in their mass fraction in the ore part from 10 to 50%. The optimal agglomeration parameters have been determined, which make it possible to carry out the process without reducing the technological indicators when using 30-45% concentrate of high-intensity magnetic separation in the sintering charge

Author Biographies

V.V. Krivenko, Technological institute of State university of economics and technology, Kryvyi Rih

Кандидат технічних наук, доцент

E.V. Chuprinov, Technological institute of the State university of economics and technology, Kryvyi Rih

Кандидат технічних наук, доцент

D.O. Kassim, Technological institute of the State university of economics and technology, Kryvyi Rih

Доктор технічних наук, професор

M.G. Korenko, Technological institute of the State university of economics and technology, Kryvyi Rih

Кандидат технічних наук, доцент

I.A. Lyakhova, Technological institute of the State university of economics and technology, Kryvyi Rih

Кандидат технічних наук, доцент

References

Оцінка металургійної цінності марганцевої сировини / В.В. Кривенко, В.П. Лялюк, Є.В. Чупринов, І.М. Трус, А.М. Овчарук // Вісник Приазовського державного технічного університету. – 2021. – № 42. – С. 43-50. – (Серія: Технічні науки). – Режим доступу: https://doi.org/10.31498/2225-6733.42.2021.240571.

Грищенко С.Г. Современное состояние и перспективы развития добычи и переработки марганцевого сырья на Украине / С.Г. Грищенко, Т.П. Проскурин, И.И. Люборец // Сталь. – 1992. – № 10. – С. 39-41.

Мостыка Ю.С. Кинетика мокрой высокоградиентной магнитной сепарации / Ю.С. Мостыка // Збагачення корисних копалин: науково-технічний збірник НГУ. – 2003. – № 18 (59). – С. 118-129.

Мяновська Я.В. Перетворення мінеральних складових марганцевих руд при температурних умовах формування агломерату / Я.В. Мяновська, Ю.С. Пройдак, Л.В. Камкіна // Теорія і практика металургії. – № 3. – 2019. – С. 42-51. – Режим доступу: https://doi.org/10.34185/tpm.3.2019.07.

Петров А.В. Технология термической обработки и окускования марганцевых концентратов: монография / А.В. Петров. – Кривой Рог: Изд. Р.А. Козлов, 2019. – 519 с.

Толстогузов Н.В. Теоретические основы и технология плавки кремнистых и марганцевых сплавов / Н.В. Толстогузов. – М. : Металлургия, 1992. – 239 с.

Downloads

Published

2021-12-30

How to Cite

Krivenko, V. ., Chuprinov, E. ., Kassim, D. ., Korenko, M. ., & Lyakhova, I. . (2021). Analysis of complex properties of manganese ores and sludges as well as possibilities of their pelletizing for obtaining manganese ferroalloys. Reporter of the Priazovskyi State Technical University. Section: Technical Sciences, (43), 111–120. https://doi.org/10.32782/2225-6733.43.2021.14

Issue

No. 43 (2021): Reporter of the Priazovskyi State Technical University. Section: Technical sciences

Section

136 Metallurgy

License

Journal "Reporter of the Priazovskyi State Technical University. Section: Technical sciences" is published under license CC-BY (License "Attribution").

This license allows you to distribute, edit, correct and take work as a basis for derivatives, even on a commercial basis with an indication of authorship. It is the most convenient of all the proposed license. Recommended for maximum dissemination and use of licensed materials.

 

Authors who publish in this journal agree to the following terms:

1. The authors reserve the right to authorship of his work and pass the journal right of first publication of the work under the terms of Creative Commons Attribution License, which allows others to freely distribute the work published with the obligatory reference to the authors of the original work and the first publication of the work in this journal.

2. The authors have the right to enter into separate supplemental agreements relating to the non-exclusive dissemination of works in the form in which it was published in the journal (for example, to place the work in the institution, or to publish a monograph as part of an electronic store), while maintaining links to the first publication of the work in this magazine.