PROCESS AND APPARATUS FOR PRODUCING STEEL WITH HIGH CONTENT OF CHROMIUM AND/OR IRON ALLOYS IN ELECTRIC ARC CONVERTER

摘要

the invention concerns a method and device for manufacture of steel with high cr content mainly, and the metal used (14) in a schmelzgefu00e4u00df (1) is melted, refined and used, is reduced, and at the same time with (9) prozeu00dfgase supplied by .$a schmelzgefu00e4u00df (1) with gewu00f6lbtem riser (5) and zylindrischem gefu00e4u00dfteil (6) is in a skirt (2) mounted with the electrodes (8) by the gefu00e4u00dfoberteil (12) in the schmelzgefu00e4u00df (1) to the fixed input (14) to be reduced. above the konverterbodens (10) in which the base jets (9) are arranged, is already a part of molten metal (15) is accumulated.$a in accordance with the process is to be filmed by the outer part of the nozzles (9) - ch2 / n2 gas, and the inner part of the nozzles (9) prozeu00dfgase - o2 / co2, n2, ar is fed. the flue gases through a prevent (11) are extracted.