Research Concerning Reducing the Polluation Degrees in the Sectors of Production of Metal Materials

This paper contains the results of researches and experimentations on the reduction of the concentration of gaseous emissions and powders in the manufacture of ferrous alloys in aggregates of electric arc furnaces (EBT) coupled with a treatment plant (LF) located at Mechel Targoviste using new technology. Experiments have shown that using the new technology one achieves a reduction in pollutant gaseous emissions by about 30% and in dust content by about 25% compared to the use of classical technology, with particularly beneficial effects on the environment. The results have confirmed the validity of the new technology that used iron sponge in the loading phase, foamed slag in the melting phase and long electric arc in the production phase. The paper presents the results of the experiments using both technologies, as well as the equipment established and used in the experiments for the measurement and recording of the gaseous emissions and powders content, which ensured an accurate evaluation of the obtained results.