Nesterov Alexander Stanislavovich, PhD (Engin.), Senior Researcher, Head of Department; Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: asn.dnepr@ gmail.com; ORSID0000-0002-0183-0327
Garmash Larysa Ivanivna, с Research Scientist, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail:
larysagar@gmail.com; ORSID 0000-0002-9540-3037
Boldenko Mikhail Grigorievich, Researcher, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine,49107
Vergun Olga Alexandrovna, Research, Iron and Steel Institute named after Z.I. Nekrasovof the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107
Lopatenko Konstantin Petrovich, Researcher, Institute of Ferrous Metallurgy named after Z.I. Nekrasov National Academy of Sciences of Ukraine, Academician Starodubov Square, 1, Dnipro, Ukraine, 49107

Influence of surface-active substances on the processes of
agglomeration when the secondary resources are using

Abstract. A promising method of intensifying the process of sinter
preparation preparation was investigated by using surfactants as an additional
binding material. It is shown that surfactants provide efficient compaction of
charge materials. The use of water-soluble surfactant additives (aminocrylate of
various compositions) when moistening the charge in the blending and
pelletizing of charge materials positively affects the sintering performance and
the quality of the finished sinter. An increase in the strength of the agglomerate
during recovery, a decrease in abrasion, and an increase in the temperature of
the maximum melt filtration were noted. An increase in the recoverability of
the agglomerate and the associated decrease in the ―aggressiveness‖ of primary
slags were also observed. When using surfactants, the duration of the process
was reduced, and the vertical sintering rate increased from 1.0-1.8% to 6.1-
8.5%. The yield of the charge has increased by 0.4-2.4%, the strength index –
by 0.4-2.2%. Analysis of the results of laboratory studies confirmed that the
introduction of surfactants in moisturizing water can improve the quality of the
mixture. In particular, the gas permeability of the charge is improved, the best
conditions for burning solid fuel and the process of liquid-phase sintering are
81
«Фундаментальные и прикладные проблемы черной металлургии. – 2018. – Вып.32
«Fundamental and applied problems of ferrous metallurgy». – 2018. – Collection 32
«Fundamental’nye i prikladnye problemy černoj metallurgii». – 2018. – Vypusk 32
provided, and the strength properties of the finished product are enhanced. The
involvement of a part of metallurgical wastes in the fermentation domain
complex allows to significantly expand the resource base of iron ore
components, reduce the cost of input raw materials and improve the
environmental situation.
Keywords: sintering mixture, secondary resources, surface-active
substances (surfactants), sinter quality.
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