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 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.

References

1. Nazyuta L.YU., Kosolap N.V., Gubanova A.V. Analiz syr'yevoy bazy metallurgicheskogo proizvodstva: strategicheskiy aspekt. Zhelezorudnyye materialy. Metall i lit'ye Ukrainy, 2005, № 9-10, S. 3-7
2. Nesterov A.S., Garmash L.I., Zakharchenko V.N. Sovremennoye sostoyaniye aglodomennogo proizvodstva v Ukraine i puti yego sovershenstvovaniya. Fundamental'nyye i prikladnyye problemy chernoy metallurgii. Vypusk 30. – 2015 g. – S. 27-37.
3. Problemy ekologii i utilizatsii tekhnogennogo syr'ya v metallurgicheskom proizvodstve. [YU.S. Karabasov, YU.S. Yusfin, I.F. Kurunov i dr.]. – Metallurgiya, 2004. – № 8. – S. 27-33.
4. K voprosu o sovershenstvovanii podgotovki zhelezo-rudnogo syr'ya k domennoy plavke. [A.S. Nesterov, L.I. Garmash, A.V. Pivnenko i dr.]. Fundamental'nyye i prikladnyye problemy chernoy metallurgii. Vypusk 29.– 2014 g. – S. 64-74.
5. Ratsional'noye ispol'zovaniye metallurgicheskikh otkhodov v aglodomennom proizvodstve. [V.I. Bol'shakov, A.S. Nesterov, M.A. Gurkin i dr.]. Mezhdunarodnyy kongress “Domennoye proizvodstvo-XXI vek”: sb. Statey. Stal'. – 2010. – №4.
6. Nesterov A.S. Tekhnologicheskiye osobennosti domennoy plavki pri ispol'zovanii v zhelezorudnoy chasti shikhty vysokoy doli vtorichnykh resursov. Proizvodstvennoye soveshchaniye «Sostoyaniye i perspektivy DP
7. Ukrainy», posvyashchennoye pamyati Dyshlevicha I.I.», YEVRAZ-DMZ im.Petrovskogo, Dnepropetrovsk. – 2015.
8. Nazyuta L.YU. Effektivnost' ispol'zovaniya v agloshikhte predpriyatiy Ukrainy vtorichnykh zhelezosoderzhashchikh materialov. Ekologiya i resursosberezheniye. – 2007. – № 3. – S.18-26.
9. Ispol'zovaniye vtorichnykh resursov chernoy metallurgii dlya uluchsheniya ekologicheskoy situatsii na predpriyatiyakh. [A.S. Nesterov, L.I. Garmash, N.V. Gorbatenko, O.A. Vergun]. Materialy konferentsii SPETSÍAL'NA METALURGÍYA: VCHORA, S'OGODNÍ, ZAVTRA http://smyttmetal.kpi.ua/SMYTTXVI/autho
10. Kombinirovannoye okomkovaniye aglomeratsionnoy shikhty v apparatakh barabannogo pita i tarel'chatykh granulyatorakh. [G.I. Isayenko, A.N. Saprykin, A.S. Kuznetsov i dr.]. Stal'. — 2009. № 5. – S. 2-7.
11. Babachenko A.I., Garmash L.I.. Povysheniye effektivnosti ispol'zovaniya vtorichnykh resursov v aglodomennom proizvodstve. Materialy konferentsii Tech today hub. Místse zustríchí nauki ta bíznesu. -  Dnípro. – 2017. https://techtoday.in.ua/wp-content/uploads/2017/11/04.-Povyisheniee%60ffektivnosti.pdf
12. Issledovaniye parametrov protsessa spekaniya aglomeratsionnykh shikht, obrabotannykh poverkhnostno-aktivnymi veshchestvami. [V.D. Bondarenko, V.G. Zyuz', Z.Z. Pastushenko i dr.]. Teoriya i praktika metallurgii. – 2010. – № 1-2. – S.11-13.
13. Sibagatullin C.K., Ivanov A.B., Reshetova I.V. Primeneniye organicheskikh svyazuyushchikh komponentov v protsesse aglomeratsii zhelezorudnogo syr'ya. Vestnik MGTU im. Nosova. – 2010. – № 4, – S. 30-32.
14. Opyt primeneniya polimernykh svyazuyushchikh v metallurgicheskom proizvodstve. [S.V. Markova, A.A. Kiyk, I.V. Kormina, A.A. Ponomarenko. Stal'. – 2013. – № 7, – S.10-13.
15. Osnovnyye napravleniya povysheniya effektivnosti proizvodstva zhelezorudnogo aglomerata v Rossii. [I.S. Bersenev, M.P. Yershov, I.V. Kleyn i dr.] Stal'. – 2014. – № 8. – S.5-7.
16. Rezul'taty spekaniya i svoystva aglomerata iz shikht, podgotovlennykh s ispol'zovaniyem poverkhnostno-aktivnykh veshchestv. [A.S. Nesterov, V.S. Yakushev, M.G. Boldenko, L.I. Garmash i dr.] Fundamental'nyye i prikladnyye problemy chernoy metallurgii. Vypusk 25. – 2012 g. – S. 43-51.
17. Sposob virobnitstva aglomeratu. [Fomín S.P., Yakushev V.S., Agapova V.T., Shishats'kiy A.G. ta ín.] kraí
18. na. ekl. patent na korisnu model' № 15188, kl. S 22V 5/20. – Opubl. 15.06.2006. – Byul. № 6, – s.35.
19. Gladkov N.A., Nesterov A.S. Protsessy v sloye zhelezorudnykh materialov pri yego nagrevanii/ // Izvestiya AN SSSR. – Metally. – 1987. – № 3. – S.9-11.
20. Patent RF №2283877 Sposob opredeleniya metallurgicheskoy tsennosti domennogo zhelezorudnogo syr'ya.