DOI: 10.52150/2522-9117-2018-32-47-63

Bel’kova Alla Ivanovna. PhD (Engin.), Senior Research Scientist, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; e-mail: alla2904b8@gmail.com, allabelkova8@mail.ru, ORCID 0000-0001-8519-9351

Muravyeva I.G., Dr. Sci. (Engin.),, Head of Department, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academican Starodubova square, 1, Dnipro, Ukraine, 49107; email:irinamuravyova@gmail.com

Skachko Alexander Sergeevich, PhD (Engin.), Researcher, Iron and Steel Institute named after Z.I. Nekrasov of the NAS of Ukraine, Academic square Starodubova, 1, Dnipro, Ukraine, 49107

Methods for choosing a rational composition of the blast furnace charge

Summary. The aim of the work is to solve the problem of choosing the optimal composition of iron ore materials for blast furnace loading. An analytical review of the existing approaches to assessing the quality and methods for selecting a rational composition of iron ore materials implemented as part of the control system of domestic and foreign blast furnaces in modern conditions has been carried out. A method of modeling the processes of directional formation of melts, developed at the Iron and Steel Institute, is
proposed. The description of the processes of transformation of iron ore materials in a blast furnace and the properties of liquid smelting products was carried out using the parameters of interatomic interaction in melts. The technique uses a set of integral criteria and physicochemical models that allow estimating charge, gas-dynamic and temperature melting conditions. The influence of the quality of iron ore on the properties of primary melts and final products of blast-smelting is analyzed. An integral indicator of the quality of the charge and an integral indicator of the temperature blast mode have been developed. The main difference of the proposed approach to the selection of the composition of the charge from similar developments focused on the traditional criterion «basicity of the final slag» is the use of a set of physico-chemical criteria that characterize the quality and properties of iron ore, primary and final blast furnace slag. The use of the developed prognostic models and criteria as part of automated blast furnace control systems allows us to predict the chemical composition of iron and slag. Stabilization of slag properties within the specified limits ensures the smelting of cast iron of the required composition and a reduction in coke consumption in the current unstable conditions of smelting iron.
Keywords: blast furnace smelting, iron ore materials, cast iron, blast furnace slag, integral criterion, predictive model.

Reference
1. Gulyga D.V. Model’ rascheta shikhty, koksa i parametrov domennoy plavki / D.V. Gulyga. Stal’. – №9. – 2002. – S. 11-14.
2. Tarakanov A.K. Ispol’zovaniye matematicheskikh modeley i dialogovykh sistem v upravlenii domennym protsessom. Byulleten’ «CHM». – №11. – 2001. – S.30-33.
3. Spirin N.A. Kompleks model’nykh sistem podderzhki prinyatiya resheniy dlya upravleniya tekhnologiyey domennoy plavki. [N.A. Spirin, V.V. Lavrov, A.A. Burykin i dr.]. Metallurg. – №9. – 2010. – S. 29-31.
4. Dmitriyev A.N., Spirin N.A. Ispol’zovaniye sovremennykh informatsionnykh tekhnologiy dlya analiza i kontrolya domennogo protsessa. Byulleten’ «CHM» – №1. – 2014. – S. 21-25.
5. Shipanov K.A. Tekhnologicheskiye osobennosti i programmnoye obespecheniye rascheta zaduvochnoy shikhty domennoy pechi. [K.A. Shipanov, N.A. Spirin, A.A, Burykin i dr.]. Izvestiya VUZov. Chernaya metallurgiya. – №2. – T.2. – 2015. –S. 134-138.
6. Spirin N.A. Ispol’zovaniye sovremennykh informatsionnykh tekhnologiy dlya analiza domennogo protsessa. [N.A. Spirin, V.V. Lavrov, V.YU. Ryboleyev i dr.]. Metallurg. – №5. – 2016. – S. 13-19.
7. Ekspertnyye sistemy – novyy uroven’ optimizatsii raboty domennykh pechey. [Y. Kherl, M. Shaler, K. Shtol’ i dr.] – Chernyye metally, 2007. – №9. – S. 37-43.
8. Pat. 2048548 Rossiyskaya federatsiya. MPK S22V1/16. Sposob proizvodstva oflyusovannogo zhelezorudnogo aglomerata. [V.YA. Lyadova, L.Z. Khodak; zayavitel’: Institut metallurgii im. A.A. Baykova RAN (Rossiya) – №5048431; zayavl. 19.06.1992; opubl. 20.11.1995.
9. Puzanov V.P., Kobelev V.A., Rudin V.S. Domennoy plavke XXI veka – tekhnologiyu proizvodstva ravnovesnogo aglomerata, Stal’. – 2005. – № 6. – S. 51-54.
10. Pat. 2146296 Rossiyskaya federatsiya. MPK S22V1/16. Vysokoosnovnyy aglomerat: Lisin V.S., Skorokhodov V.N., Nastich V.P., Kukartsev V.M., Mizin V.G., Mamyshev V.A., Zakharov D.V., Grekov V.V.,
Zarapin A.YU.; zayavitel’: OAO «Novolipetskiy metallurgicheskiy kombinat» (Rossiya) – № 99114698/02; zayavl. 06.07.1999; opubl. 10.03.2000.
11. Puzanov V.P. Malygin A.V., Boranbayev B.M. Povysheniye kachestva zhelezorudnogo syr’ya na metallurgicheskikh predpriyatiyakh Rossii. Metallurg. – 1995. – № 10. – S. 18.
12. Zhak A.R., Yusfin YU.S., Rusina M.V. Integral’nyy pokazatel’ kachestva tekhnologii aglomeratsionnogo protsessa. Izv. VUZov. Chernaya Metallurgiya. – 1997. – № 11. – S. 10-15.
13. Pat. 2283877 Rossiyskaya federatsiya. MPK S22V1/14. Sposob opredeleniya metallurgicheskoy tsennosti domennogo zhelezorudnogo syr’ya. [Gurkin M.A., Gel’gorn A.V., Nesterov A.S., Bol’shakov V.I., Nevrayev V.P., Denisova S.YU. , Yakushev V.S.; zayavitel’: OAO «Severstal’» (Rossiya) – №2005124065/02; zayavl. 28.07.2005; opubl. 28.07.2005.
14. Bol’shakov V.I. Gladkov N.A. Kriteriy kachestva zhelezorudnykh materialov. Metallurgicheskaya i gornorudnaya promyshlennost’. – 2000. – № 1. – S. 5-9.
15. Prikhod’ko E.V. Baza dannykh i modeli dlya prognozirovaniya plavkosti zhelezorudnykh materialov. [E.V. Prikhod’ko, A.F. Khamkhot’ko, D.N. Togobitskaya. Stal’. –1998. – №9. – S. 7-9.
16. Tkach A.YA. Osobennosti sovremennykh shikhtovykh usloviy v domennom tsekhe OAO «DMZ im. Petrovskogo». [A.YA. Tkach, A.V. Shepel’, V.A. Petrenko i dr.]. Metall i lit’ye Ukrainy. – 2003. – № 5. – S. 28-32.
17. Bol’shakov V.I. Opytno-promyshlennaya aprobatsiya tekhnologii domennoy plavki s povyshennoy doley okatyshey. [V.I. Bol’shakov, V.I. Loginov, M.YU. Sukhanov i dr.] Stal’. – 2006. – № 1. – S. 6-11.
18. Kurunov I.F. Vliyaniye kachestva zhelezorudnogo syr’ya i koksa na pokazateli raboty domennykh pechey v usloviyakh OAO «NLMK» / I.F. Kurunov, V.N. Titov, V.L. Yemel’yanov [i dr.] // Metallurg. – 2010. – №1. – S. 28-34.
19. Tovarovskiy I.G. Merkulov A.Ye. Analiticheskoye issledovaniye protsessov i rezhimov domennoy plavki pri razlichnoy stepeni predvaritel’noy metallizatsii shikhty. Stal’. – 2010. – № 11. – S.7–13.
20. Lyalyuk V.P. Vliyaniye sostava i kachestva zhelezorudnogo syr’ya na tekhniko-ekonomicheskiye pokazateli. [V.P. Lyalyuk, V.A. Sheremet, A.K. Tarakanov i dr.] Byulleten’ «Chernaya metallurgiya» OAO
«Chermetinformatsiya». –2010. – №12. – S. 32-38.
21. Shatokha V.I. Problemy vybora shlakovogo rezhima domennoy plavki dlya metallurgicheskikh predpriyatiy Ukrainy v sovremennykh usloviyakh. Teoriya i praktika metallurgii. – 1997. – № 1. – S. 18-23.
22. Togobitskaya D.N. Generatsiya kompleksnogo pokazatelya domennoy shikhty s uchetom yeye mineralogii dlya napravlennogo formirovaniya produktov plavki. [D.N. Togobitskaya, A.I. Bel’kova, D.A. Stepanenko, A.S. Skachko] Byulleten’ nauchno-tekhnicheskoy i ekonomicheskoy informatsii «Chernaya metallurgiya». – 2015. – № 2. – S. 26–33.
23. Togobitskaya D.N. Vybor sostava domennoy shikhty, obespechivayushchego napravlennoye formirovaniye zhidkikh produktov domennoy plavki. [D.N. Togobitskaya, A.I. Bel’kova, D.A. Stepanenko i
dr.] Metallurgicheskaya i gornorudnaya promyshlennost’. – Dnepropetrovsk. – 2016. – № 3. – S. 11-18.
24. Kontseptsiya modelirovaniya protsessov napravlennogo formirovaniya rasplavov domennoy plavki. [D.N. Togobitskaya, A.I. Bel’kova, D.A. Stepanenko, N.A. Tsivataya, A.S. Skachko, Sb. trudov MK «Suchasna metalurgíya: problemi, zavdannya, ríshennya. Nauka í virobnitstvo». – Dnípropetrovs’k, 2015.