Saint-Petersburg State Polytechnical University (Saint-Petersburg, Russia):

Butorina I., Dr. Eng., Prof., e-mail: butorina_irina@mail.ru

Ulamov Yu., Post-Graduate Student

The values of key environmental indicators (energy consumption, water consumption, emissions and waste) of the final stage of metallurgical cycle, that is production of rolled steel, recommended by ISO 14000, a system of international certification of environmental performance are presented. Ecological rolling parameters are based on the data presented in the ecological passports of Magnitogorsk Iron and Steel Works and “Azovstal” Metallurgical Works. Blooms, large sections, rails and heavy plate are considered from the point of view of parameters of yield, power and water consumption, gas and dust emissions, waste cuts and scale, worked-out rolls and other scrap. It is shown that power output per 1 ton of products canbe named as rather important factor of each technological process. The analysis and re commendations for their improvement are given. It is conclu ded that a quarter of consumed power and a quarter of toxic gases at integrated metallurgical works are presented by rolling production and complete recycling of all metal wastes can be reached at such enterprises. It is displayed that metal yield in rolling of different sections is practically equal (92–93%), its minimal value is noted for ingot billets with feeder head. Metal heating before rolling covers up to 85% of power input and about 98% of rolling emissions, while using of up-to-date radiation furnaces for metal heating and transition to continuous casting-rolling complexes improve these parameters by 30%.

1. Integrated Pollution Prevention and Control (IPPC). Best Available Techniques Reference. Document on the Production of Iron and Steel. EUROPEAN COMMISSION 2013. 356 p.

2. Butorina I. V. Ekologicheskie problemy metallurgicheskogo proizvodstva : uchebnoe posobie (Ecological problems of metallurgical production : tutorial). Saint Petersburg : Publishing House of Polytechnical University, 2008. 140 p.

3. Ekologicheskiy pasport Metfllurgicheskogo Kombinata “Azovstal” (Ecological passport of Azovstal Iron & Steel Works). Mariupol, 1991.

4. Butorina I. V. Ekologicheskie pokazateli termoobrabotki metalla v toplivnykh pechakh (Ecological indices of thermal treatment of metals in fuel furnaces). Nauchno-tekhnicheskie vedomosti Sankt- Peterburgskogo Gosudarstvennogo Politekhnicheskogo Universiteta — Scientific and technical bulletin of Saint Petersburg State Polytechnical University. Saint Petersburg : Saint Petersburg State Polytechnical University, 2007. pp. 45–48.

5. Giraud Patrick, Lemaire Sebastien, Sedmak Patrice, Delaunay Didier. Ploskoplamennye gorelki dlya sovremennykh nagrevatelnykh pechey (Central wide flame burners for advanced reheating furnaces). MPT International. 2011. 34, No. 3. pp. 120, 122.

6. Rossiyskiy statisticheskiy ezhegodnik, 2012 : statisticheskiy sbornik (Russian statistical yearbook, 2012 : statistical collection). Moscow : Russian Federation Federal State Statistics Service, 2012. 786 p.

7. Devaux M., Grant M., Levert D. Uvelichenie proizvoditelnosti nagrevatelnoy pechi s pomoshchyu szhiganiya v chistom kislorode (In creasing reheating furnace productivity with pure oxycombustion). Steel Times. 2001. 229, No. 7-8. pp. 248–249.

8. Zharitskiy M. D. Stal — Steel in Translation. 1998. No. 8. pp. 37–38.

9. Emelyanova E. S., Butorina I. V. Metallurg — Metallurgist. 2010. No. 10. pp. 54–56.