Scrap-Based Steel Production And Recycling Of Steel.

QM 02

PROIZVODNJA JEKLA IZ JEKLENEGA ODPADKA

D. Janke, L. Savov, H.-J. Weddige, E. Schulz

Institute of Iron and Steel Technology, Freiberg University of Mining and Technology

Prejem rokopisa - received: 2000-10-20; sprejem za objavo - accepted for publication: 2000-12-10

A survey is given on routes and trends of electro steelmaking which is based on statistical and experimental studies performed at the Institute of Iron and Steel Technology at Freiberg University of Mining and Technology.

The report is focused on the technological features of AC and DC Electric Arc Furnaces as well as on the aspects of quantities and costs of production, material and energy sources and environmental effects. Special emphasis is laid on the availability and quality of scrap which is closely related with the trace and tramp element problem in view of low and high alloyed steel production. The possibilities and limits of contaminated scrap recycling and methods of scrap purification are discussed.

Key words:

steel production processes, scrap quality, production costs, development of electric arc furnaces, scrap supply, scrap purification