VAC 2.6.3 Литейное производство
UDK 669 Металлургия. Металлы и сплавы
The paper presents energy and technological indicators and designs of improved electric furnace units for melting steel from iron ore raw materials (IOR). A method of controlling an arc furnace with a continuous IOR supply is proposed, which gives the opportunity to control and regulate the active power of the furnace, thermal processes in the welding bath of the electric arc, as well as in the unit as a whole. The design of a ladle unit for out-of-furnace melt treatment is presented, which allows the melting of high-quality electrical steel and simultaneous treatment with inert gases. At the same time, it is possible to reduce the metal carbon monoxide and IOR melting time.
bath furnace, iron ore raw materials (IOR), control, electrodes, ladle furnace
1. Krakht LN, Merker EE, Rassolov VM, Korolkova LN, Kozhukhov AA, Kharlamov DA. The efficiency of obtaining and electric melting of iron ore raw materials in direct ore-reduction metallurgy units: monograph. St. Oskol: TNT; 2017.
2. Merker EE, Kharlamov DA. Energy saving during electric steel melting in arc furnaces. Stary Oskol: TNT; 2013.
3. Merker EE, Kharlamov DA, Krakht LN. About efficiency of application combined processes of arc melting and ladle treatment of steel in an electric steelmaking aggregate ladle-furnace with use of locally distributed system of combustible gases afterburning. FERROUS METALLURGY. Bulletin of Scientific, Technical and Economic Information. 2020;76(9):920-925.
4. Merker EE, Sazonov AV, Stepanov VA, Krakht LN, Kharlamov DA. Melting of pellets during arc heating with an analysis of the metal loss in the subelectrode space in a steelmaking bath. Russian Metallurgy (Metallically). 2016;12:1129-1134.
5. Merker EE. Patent - 2567424 C1 RF, IPC C21C 5/52. Method of melting steel from iron ore metallized pellets in an arc steelmaking furnace. The National University of Science and Technology MISIS. 2013 May 27.
6. Merker EE, Karpenko GA, Chermenev EA. Patent - 2532243 C1 RF, IPC C21C 7/00 Liquid steel complex processing unit (AKOS The National University of Science and Technology MISIS. No. 2013111288/02. 2014 Oct 27.
7. Merker EE, Kharlamov DA. Patent - 2645858 C21C 7/00. Electric steelmaking unit ladle furnace (ESA-KP). The National University of Science and Technology MISIS. No. 2016119779. 2017 Nov 28.
8. Merker EE, Kharlamov DA, Kochetov AI. Energy-saving technology of out-of-furnace steel processing in the bucket-furnace unit. St. Oskol: TNT; 2007.
9. Merker E.E., Chermenev E.A., Sazonov A.V. Prereduced pellets electric melting efficiency study at their continuous handling into arc furnace bath. Izvestiya. Ferrous Mettalurgy. 2012;5:14-17.
