JSC “EVRAZ ZSMK” (Novokuznetsk, Russia):

A. M. Koverzin, Head of Blast furnace Shop
L. D. Nikitin, Leading Specialist of Direction of Coking, Sintering and Blast Furnace Production (DKADP), У-mail: Leonid.Nikitin@evraz.com
A. V. Vashchenko, Chief Specialist of DKADP
V. G. Shchipitsyn, Chief Specialist of DKADP

The aspects of improving the blast-furnace melting technology, including the mode of regulation of charge materials distribution, gasdynamic and blast modes, slag and thermal modes have been considered. In particular, the optimal structure of the charge materials column along the furnace’s height, and shape of a viscoplastic state zone is achieved by developing and implementing mathematical models and algorithms to control circumferential and radial distribution of the charge and gas, the position, thickness and shape of the viscoplastic zone. Measures for automation of systems and means to control blast furnace processes have been presented. The objects of automation are the blast and temperature conditions of the melting process, the blast furnace cooling system and shop-wide technological parameters. The positive eff ect of the results of blast furnace modernization and melting processes automation on improvement of technical and economic indicators of production and production costs reduction, as well as on processes of industrial waste utilization and casthouse aspiration has been shown. The prospects for the blast-furnace production development have been determined.

1. Portnov L. V., Koverzin А. М., Nikitin L. D., Shchipitsyn V. G., Bugaev S. F. Increasing efficiency of blast-furnace melting at the JSC “EVRAZ ZSMK”. Chernaya metallurgiya. Byulleten nauchno-tekhnicheskoy i ekonomicheskoy informatsii. 2014. No. 6. pp. 15–18.
2. Koverzin А. М., Portnov L. V., Nikitin L. D., Shchipitsyn V. G. Production control of blast furnace hearth. Stal. 2014. No. 7. pp. 14–16.
3. Koverzin A. M., Nikitin L. D., Portnov L. V., Drozhzhin A. A. Technology development and effi ciency assessment for waste utilization in pigiron production. Metallurgist. 2014. Vol. 58, No. 5-6. pp. 482–487.
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7. Sundqvist Őkvist L., Lagerwall P., Sundelin B., Orre J., Bramming M., Lundgren M. Blast furnace practice with low emissions of carbon dioxide. Chernye Metally. 2018. No. 7. pp. 12–19.
8. Chukin M. V., Sibagatullin S. K., Kharchenko A. S., Chernov V. P., Logachev G. N. Influence of coke nut introduction in blast furnace charge on melting parameters. CIS Iron and Steel Review. 2016. Vol 12. pp. 9–13.
9. Sibagatullin S. K., Kharchenko A. S., Savchenko G. Yu., Beginyuk V. A. Blast furnace performance improved through optimum radial distribution of materials at the top while changing the charging pattern. CIS Iron and Steel Review. 2018. Vol. 16. pp. 11–14.
10. Nikitin L. D., Dyachok N. G., Avtsinov А. F. Usage of aluminum production waste in the charge of ZSMK blast furnaces. Chernaya metallurgiya. Byulleten nauchno-tekhnicheskoy i ekonomicheskoy informatsii. 2001. No. 11. pp. 33–36.
11. Nikitin L. D., Maryasov M. F., Bugaev S. F., Denisov Yu. M., Avtsinov A. F., Dyachok N. G., Portnov L. V., Kopylov A. A., Kalyaka V. V., Polshchikov A. V. Patent RF, No. 2176272. Method of blast-furnace smelting. Published: 10.11.2001, Bulletin No. 31.