ISSN (print) 1995-2732
ISSN (online) 2412-9003

 

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Abstract

Operating modes of the single-skip loading of raw material components into the charge hopper of the blast furnace at OJSC MMK were studied on a physical model of the bell-less charging device of a chute type. The authors examined the effect of changes in the sequence of a set of materials into the hopper on the uniformity of their loading in a throat area at a content of 30% of pellets in the iron ore part of the charge. It was found that in the current circumstances the most efficient sequence of materials charged into the hopper was the following: on the bottom 17% of sinter from its consumption, then pellets, coke nuts, ore and the remaining amount of sinter.

Keywords

Blast furnace, bell-less charging device of a chute type, charge, circumferential distribution, sinter, pellets, ore, coke nut.

Sibagatullin Salavat Kamillovich – D.Sc. (Eng.), Professor, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. Phone: +7 (3519) 29 84 30. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Kharchenko Alexander Sergeevich – Ph.D. (Eng), Associate Professor, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. Phone: +7 (3519) 29 84 30. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

1. Pykhteeva K.B., Zagaynov S.A., Tleugabulov B.S., Filippov V.V., Zhuravlev D.L., Nikolaev F.P. Analysis of the characteristics of forming portions and discharging materials from the hopper of the bell-less charging device when loading the charge. Stal' [Steel]. 2008, no. 6, pp. 14-19.

2. Kharchenko A.S., Sibagatullin S.K., Teplykh E.O., Gushchin D.N. The influence of the various factors on the uniformity of the coke nut distribution in the throat area of a blast furnace equipped with the bell-less charging device of a chute type. Teoriya i tekhnologiya metallurgicheskogo proizvodstva: mezhregional'nyj sbornik nauchnykh trudov № 10 [Theory and technology of metallurgical production. Interregional collection of scientific papers]. Magnitogorsk, 2010, no. 10, pp. 33-38.

3. Sibagatullin S.K. The optimum degree of the direct reduction of iron from oxides. Stal' [Steel]. 1997, no. 4, pp. 1-5.

4. Mousa E., Senk D., Babich A. Reduction of pellets-nut coke mixture under simulating blast furnace conditions. Steel Research International, 2010, vol. 81, iss. 9, pp. 706-715.

5. Mousa E., Senk D., Babich A. The effect of coke nut on the behavior of the reduction of iron ore by sinter. Proceedings of the 24th Aachen Colloquium of steel metallurgy "Raw Materials Company" 17-18.09.2009, Aachen. Aachen: Mainz, 2009, pp. 67-77.

6. Sibagatullin S.K., Kharchenko A.S., Chevychelov A.V. and others. The effect of coke nut on filtration of liquid products of melting in the blast furnace hearth. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2010, no. 4, pp. 28-30.

7. Sibagatullin S.K., Kharchenko A.S., Polinov A.A. and others. The results of the joint use of coke nut in the blast furnace while improving the quality of skip coke. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2010, no. 2, pp. 24-27.

8. Onorin O.P., Spirin N.A., Pavlov A.V., Lavrov V.V. and others. Logical framework of the recognition of the type of a deviation of the blast furnace smelting from a normal mode. Izvestiya vuzov. Chernaya metallurgiya [News of the higher educational institutions. Ferrous metallurgy]. 2014, no. 8, pp. 42-47.

9. Sibagatullin S.K. Formirovanie sloya shikhty v koloshnikovom prostranstve domennoj pechi [The formation of the charge layer in the throat area of a blast furnace]. Magnitogorsk: Nosov Magnitogorsk State Technical University, 2014, 188 p.

10. Sibagatullin S.K., Teplykh E.O., Kharchenko A.S. and others. The dependence of the uniformity of charging sinter and pellets into the throat area of a blast furnace on the sequence of their placing in the hopper of the bell-less charging device. Teoriya i tekhnologiya metallurgicheskogo proizvodstva [The theory and technology of steel production]. 2012, no. 12, pp. 16-21.

11. Vorontsov V.V., Stepanov A.T. On a distribution of the charge materials around the circumference of the throat of the blast furnace. Vestnik Cherepovetskogo gosudarstvennogo universiteta [Cherepovets State University Bulletin]. 2010, no. 1, pp. 129-133.

12. Bolshakov V.I., Bogachev Yu.A., Vishnyakov V.I. and others. Pre-start studies of charge loading and distribution in the blast furnace of a large volume. Chernaya metallurgiya. Byulleten' NTEHI [Ferrous mettalurgy. Bulletin of NTEI]. 2008, no. 6, pp. 14-19.