ВИЗНАЧЕННЯ СИЛОВОГО ВПЛИВУ ЗМІННОГО СТРУМУ НА МЕТАЛ У ВАННІ УСТАНОВКИ КІВШ-ПІЧ
Journal Title: Математичне моделювання - Year 2018, Vol 1, Issue 1
Abstract
DETERMINATION OF THE POWER ACTION OF THE ALTERNATING CURRENT ON METAL IN THE POOL LADLE-FURNACE UNIT Krikent I.V. Abstract The work is devoted to theoretical research in the field of secondary steel processing. The expediency of using mathematical modeling for studying the processes taking place in the ladle-furnace units is noted. A mathematical model of the electromagnetic field in the pool of metallurgical aggregates is proposed, in which the heating of metal by electric arcs of alternating current is used. This model makes it possible to calculate the density of electromagnetic forces acting on a liquid metal in metallurgical aggregates. The results of calculating the magnitude of the electromagnetic forces of a metal melt arising during heating in a ladle with a capacity of 60 t on an alternating current ladle–furnace unit are presented. It was found that with the use of alternating current, the influence of electromagnetic forces on the secondary treatment process became less than with the use of direct current. The above illustrations show that in the ladle-furnace units of alternating current, considerable electromagnetic forces are observed only near the surface of the metal pool. It is shown that in the case of theoretical studies of metal mixing in aggregates of an alternating current ladle–furnace, electromagnetic forces can be attributed to insignificant factors. References [1] Piptjuk V.P., Poljakov V.F., Samohvalov S.E. e.a. Faktory vlijanija na parametry peremeshhivanija rasplava pri obrabotke na ustanovke kovsh-pech postojannogo toka [Factors influencing the parameters of melt fusion during processing on a DC ladle furnace unit]. Trudy 9 Mezhdunarodnogo Kongressa staleplavil'shhikov – TRANSMET 2010 [Proc. of the international Congress of Steel Makers – TRANSMET 2010]. Moscow, 2011, pp. 283–288 (in Russian). [2] Alexis J., Ramirez M., Trapaga G., Jonsson P. “Modeling of a DC Electric Arc Furnace – Heat Transfer from the Arc”, The Iron and Steel Institute of Japan International, 2000, Vol. 40, No. 11, pp. 1089–1097. [3] Ramirez M., Alexis J., Trapaga G. e. a. “Modeling of a DC Electric Arc Furnace–Mixing in the Bath”, The Iron and Steel Institute of Japan International, 2001, Vol. 41, No. 10, pp. 1146–1155. [4] Wang F., Jin Z., Zhu Z. “Numerical study of dc arc plasma and molten bath in dc electric arc furnace”, Ironmaking and Steelmaking, 2006, Vol. 33, No 1, pp. 39–44. [5] Piptjuk V.P., Krikent I.V., Samohvalov S.E. e.a. O peremeshivanii rasplava pod dejstviem elektromagnitnyh sil pri obrabotke na ustanovke kovsh-pech postojannogo toka [About mixing of the melt under the influence of electromagnetic forces during processing on a DC- ladle furnace unit]. Bjulleten' NTiEI «Chernaja metallurgija», OAO Chermetinformacija – Bulletin of the NTiEI "Ferrous Metallurgy", OJSC Chermetinformation. 2007. no. 8, pp. 29–33 (in Russian). [6] Piptjuk V.P., Krikent I.V., Samohvalov S.E. e.a. Vlijanie postojannogo toka na harakter massoperenosa v metallicheskom rasplave ustanovki kovsh-pech. Chast' 1. Dejstvie jelektromagnitnyh sil [Influence of direct current on the character of mass transfer in the metallic melt of the ladle-furnace unit. Part 1. Effects of electromagnetic forces]. Teorija i praktika metallurgii – Theory and Practice of Metallurgy. 2007. no. 2–3, pp. 60–64 (in Russian). [7] Piptjuk V.P., Samohvalov S.E., Pavljuchenkov I.A. e.a. Vlijanie postojannogo toka na harakter massoperenosa v metallicheskom rasplave ustanovki kovsh-pech. Chast' 2. Model' massoperenosa [Influence of direct current on the character of mass transfer in the metallic melt of the ladle-furnace unit. Part 2. The model of mass transfer]. Teorija i praktika metallurgii –Theory and Practice of Metallurgy. 2007. no. 4–5, pp. 14–17 (in Russian). [8] Piptjuk V.P., Samohvalov S.E., Pavljuchenkov I.A. e.a. Vlijanie postojannogo toka na harakter massoperenosa v metallicheskom rasplave ustanovki kovsh-pech. Chast' 3. Gidrodinamika vanny [Influence of direct current on the character of mass transfer in the metallic melt of the ladle-furnace unit. Part 3. Hydrodynamics of the bath]. Teorija i praktika metallurgii –Theory and Practice of Metallurgy. 2007. no. 6, pp. 3–7 (in Russian). [9] Piptjuk V.P., Samohvalov S.E., Poljakov V.F. e.a. Osobennosti massoperenosa v vanne еmkost'ju 140 t ustanovki kovsh-pech postojannogo toka [Peculiarities of mass transfer in a bath with a capacity of 140 tons of a ladle furnace-DC unit]. Trudy Institut chеrnoj metallurgii NAN Ukrainy “Fundamental'nye i prikladnye problemy chernoj metallurgii” [Proc. of the Institute of Ferrous Metallurgy NAS of Ukraine “Fundamental and Applied Problems of Ferrous Metallurgy”]. 2012. Is. 25, pp. 131–138 (in Russian). [10] Krikent, I.V., Krivtsun, I.V., Demchenko, V.F. e.a. Chislennoe modelirovanie sil'notochnogo dugovogo razrjada v ustanovke kosh-pech postojannogo toka [Numerical modeling of high-current arc discharge in D.C. ladle–furnace unit]. Sovremennaya Elektrometallurgiya – Electrometallurgy Today. 2013. № 3, pp. 45–50 (in Russian). [11] Krikent I.V., Samohvalov S. E., Kabakov D.Ju. e.a. Chislennoe issledovanie gidrodinamiki rasplava v ustanovke kovsh-pech' postojannogo toka [Numerical study of melt hydrodynamics in D.C. ladle–furnace unit]. Sovremennaya Elektrometallurgiya – Electrometallurgy Today. 2014. № 3, pp. 45–49 (in Russian). [12] Jachikov I.M., Zareckaja E.M. Analiz povedenija magnitnogo polja vblizi jelektrodov dugovyh pechej posredstvom matematicheskogo modelirovanija [Analysis of the behavior of the magnetic field near the electrodes of arc furnaces by means of mathematical modeling]. Izvestija VUZov. Chjornaja metallurgija. Elektrometallurgija stali i ferrosplavov – Proceedings of universities. Ferrous metallurgy. Electrometallurgy of steel and ferroalloys. 2011. no. 1, pp. 18–21 (in Russian). [13] Genis I.A., Pentegov I.V. Issledovanie raspredelenija plotnosti toka na poverhnosti zhidkoj metallicheskoj vanny i toka mezhdu kristallizatorom i slitkom v odnojelektrodnyh pechah EShP [Investigation of the distribution of the current density on the surface of a liquid metal bath and the current between the crystallizer and the ingot in single-electrode furnaces of the ESP]. Special'naja Elektrometallurgija –Special electrometallurgy. 1981. Is. 45, pp. 40–46 (in Russian). [14] Tarasov V.A., Mironov Ju.M. Analiticheskij raschet rastekanija toka po vanne zhidkogo metalla ot odinochnogo jelektroda v shlake [Analytical calculation of the flow of a current through a bath of liquid metal from a single electrode in a slag]. Elektricheskij raschet vjelektrotehnologicheskih ustanovkah – Electrical calculation in electrotechnological installations. Cheboksary, 1971. pp. 48–56 (in Russian). [15] Atabekov G.I. Osnovy teorii cepej [Bases of the theory of circuits]. Moscow, 1969. 424 p. (In Russian). [16] Bronshtejn M.S., Semendjaev K.A. Spravochnik po matematike dlja inzhenerov i uchashhihsja VTUZov [The handbook on the mathematician for engineers and pupils of the HTEI’s]. Moscow, 1986. 544 p. (In Russian).
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І. В. Крикент
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- EP ID EP297115
- DOI 10.31319/2519-8106.1(38)2018.129037
- Views 72
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