EXPANDED LE-SHATELLIE-BROWN PRINCIPLE APPLICATION TO CARBON OXIDATION PROCESS IN LD BATH. PART II

Abstract

Δ V С oscillation frequencies, caused by interaction processes between oxygen torch, slag and metallic phases in reaction zone, are of greatest im- portance for practical control over oxygen furnace process. This was proved in course of experiments to study the transient processes in H φ → Δ V С , V O2 → V С , and slag-forming V С channels. V O2 → V С channel strictly reacts to oxygen consumption fluctuation and carbon oxidation velocity with dynamic characteristics, determined by technological parameters of the slag phase. The theoretical basis of use of periodic impacts in the channel purging oxygen consumption – carbon oxidation velocity” channel is presented. Proposed purge management method allows to completely rid the process from emissions probability, improves the assimilation of sulfur and phosphorus contaminants in slag phase, decreases metallic phase losses, and stabilizes the purging process on the whole. The results are confirmed by industrial exploitation. The major issue of the designed method industrial application is to ensure normal technical operations of exhaust gases path (primarily, exhaust gases volume regulation system).