. engineering», bulletin 58. Moscow, 1968. Tulin N.A., Kudryavtsev V.S., Verner D., Lessel V., Muller B. and others. Development of metallurgy without application of coke. Moscow: Metallurgy, 1987. 12. «Boliden Inred» process for smelting reduction of finely divided iron oxides and concentrates. Metallurgy abstract journal. 1980, no. 2, 2B163. 13. Elwander G., Omberg G. Production of pig iron in the way of Inred Iron. Ferrous Metals. 1984, no. 17, pp. 42-45. 11. 14. Elwander H.I., Edenwall I.A., Hellstam C.I. Boliden Inred process for smelting reduction of fine-grainted iron oxides and concentrates. Ironmaking and Steelmaking. 1979, no. 5, pp. 235-244. 15. Kadarmetov A.H., Kaskin K.K., Uchaev A.N. Continuous process for production of semiproducts with using metallized pellets in the charge. Continuous metallurgical processes:ore, scrap, metal rolling: abstracts of All-Union Scientific and Technical Conference. Sverdlovsk, 1989. 62-405.6:669.1 ., . . ( ) - . , : . - . : , , , , , . - , . , - . - . [1,2]. , - , . ( , .), , , , , - . - . , , [1]: f , - h d 1,13 . V , V - (1) , - . V – V. [2]: 1) - « » » ( . , ; 2) , - 800×500×500 – « ). 1 , , 1200 – [3]. - ; 3) - , , - k, - . . . 2013. 4. : ——————————————————————————————————— 21 , d D k 2 2) h , H f ( x) D, d – ; H, h – 15 x 8,8 0,8 0,36 exp 2 . 8,8 - 1 . V V V - k, V – - , . , - 800 22 1200 , , , 33 1030,6 . - 916,9 , 100% . – – – ( 3 , 4,0 ; 2,0 – . -120 135 140 , 28 32 [3-5]. ( ): (2 , 3 , ) – 20 30 ; ) « » - 33,5 319,1 , , 294,2 , 0,5 1,0 118,0 1479,0 , ( , ); – ( ) 10 419,6 502,2 360,8 - 15 ; – – – 14 16 ; ( , (2 , 3 , ) ) 20 8 12 ; 25 . - 2 , , . , 63,5 , - 1 - . . 1 2 - 19 10 . x, 18 14 10 28 20 18 6,1 18,3 27 22 12 17 17 8 25 23 11 6,5 16,3 , . 22 22 10 11,8 26,6 25 10 [6-8]: 25 19 7 33,0787 x3 14,4768 x4 ; 22 ——————————————————————————————————— 28,4 25 18 16 1) f ( x) 0,40927 5,7328 x 23,9782 x2 4,4 15,0 22 16 15 17,7 35,0 , 11 13 8 10 10 10 . . . 5,6 3,7 8,4 6,1 . 2013. 4. … ., . . 1. : 1) : f ( x) 0,7629 1,4207 x 8,153 x 2 12,31 x3 5,5385 x 4 ; 2) : f ( x) . 1. ( ) 0,9105 0,40868 x . 1 0,6517 x 1,0575 x 2 :1– ;2– , . , , . : – – – 179,2 ; . 2. – 155,2 . ( ) :1– ;2– [6-8]: 1) . 3. f ( x) 0,1244 8,6194 x 31,6019 x2 . 40,484 x3 16,8516 x4 ; 2) f ( x) x 1,0169 0, 097 0,2536 exp x 0,7864 0,9746 exp 0, 2199 2 0, 2492 2 . . 2. - . 3. , 40% - ( , ) 5 , ( 25 , 25 . - :1– - 80 90 , 40 65 , 5 ) ;2– . . ( ) . . . . . 2013. 4. ——————————————————————————————————— - 23 , ( ) – – 13 ; V – f – [3]: (3 , ) 16 . 35 ;V 45 ; – . - : 1) , f f ( x) 0,922 0,93785 x 2, 2439 x V V . 2 , (3), 2,3323 x 3 ; f 2) 0,8914 1,0202 x . 1 0, 7871 x 0, 2828 x 2 f ( x) V . V f (4) , (4) . 4. . , « » , . - , , : f ( x) a f ( x) . (5) - , (5) (2). . 4. ( , ) 0,82, , :1– ;2– - . 3. 3 , , f 0,8 0,9 . - X max 1 X max 2 (2) f ( x ) dx. 0 3 , (2), 0,6 1,248 1,217 1,260 1,250 1,130 1,128 1,130 1,128 1 : 4 0,7. , - ( ) ( , , V V V 1) V V - - .), : (1): f : – V , V (3) 24 ——————————————————————————————————— , ( »); . . . . 2013. 4. … ., – 33 . , h d 1,12 1,15 ; 2) . . k : - k h d, 3 0,1325 D , D– . , , 1. , . , i B A V V A, B, C , 2. - , V - , : a 3 a i, c a j. : ., ., 1970. 432 . 7. . .: 8. , . .: : . 6. V , b i j . 2006. 496 . 22 ., : . / ., , 1972. 432 . . / ) « ., -15-2012. . . ., . , : , ., , 2009. 736 . . . 1. . . 2- . .: . , 1971. 192 . . Mathcad 12, MATLAB 7, Maple 9. », , - – ( - -13657842: 2008. 115 . 5. , ., , 1957. 279 . 2012. 6 . 4. – ., 3. j C A, k, . .: - . , .: .: 8(3537)23-81-98. E-mail: nielsen1@mail.ru. – . .( ) 8(3537)23-81-98. E-mail: guenter@orsksamgups.ru. . , . « », . .: INFORMATION ABOUT THE PAPER IN ENGLISH THE DEPENDENCE OF METAL FURNACE CHARGE POROSITY CHANGING ON THE CHARGING BUCKET HEIGHT IN ELECTRIC FURNACE STEELMAKING Bushuyev Anton Nikolaevich – Assistant Professor, Orsk humanitarian Institute of Technology (branch) of HE «Orenburg State University», Russia. Phone: 8(3537)23-81-98. E-mail: nielsen1@mail.ru. Gunter Dmitry Aleksandrovich – Ph.D. (Phys.-Math.), Orsk Humanitarian Institute of Technology (branch) of HE «Orenburg State University», Russia. Phone: (3537)23-81-98. E-mail: guenter@orsksamgups.ru. Abstract. Series of model experiments to study the dependency of metal furnace charge porosity changing on the charging bucket height in electric furnace steelmaking have been executed. The experiments performed comprise four ways of lumpy scrap charging in a basket, which are usual for the arc furnace operating modes: without and with liquid cast iron adding in technological process of smelting. On the basis of the data obtained functional dependence of metal furnace charge porosity changing on the charging bucket height for each of considered options have been established. Keywords: approximation of data, electric furnace steelmaking, metal furnace charge, porosity, real covering, model covering. References 1. Kitayev B.I. Yaroshenko D.G., Suchkov V.D. Teploobmen's Knots in mine furnaces. Moscow: Metallurgizdat, 1957. 279 p. . . . 2013. 4. 2. 3. 4. 5. 6. 7. 8. Kitayev B.I. Timofeev V.N., Bokovikov B.A. etc. Warm and a mass exchange in a dense bed. Moscow: Metallurgy, 1972. 432 p. The organization of acceptance and metalfurnace charge preparation for loading in the arc electric furnace. Technological instruction TI-13657842ST.ES-15-2012. Novotroitsk, 2012, 6 p. Bratkovsky E.V., Zavodyany A.V. Elektrometallurgiya of steel and special electrometallurgy. Novotroitsk: NF of MRS., 2008, 115 p. Smooth V.A. Gasik M.I. Ovcharuk A.N. etc. Design and equipment of electrosteel-smelting and ferroalloy shops: textbook. Dnepropetrovsk: System technologies, 2009, 736 p. Guter R.S., Ovchinsky B.V. Elementy of the numerical analysis and mathematical processing of results of experience. Moscow: Science, 1970, 432 p. Rumshinsky L.Z. Matematicheskaya processing of results of experiment. Moscow: Science, 1971, 192 p. Alekseev E.R. Chesnokova O.V. The solution of problems of calculus mathematics in Mathcad 12, MATLAB 7, Maple 9 packages. Moscow: NT Press, 2006, 496 p. ——————————————————————————————————— 25