A method and equipment for the manufacture and increasing the annual production quantity of masses steel or high-grade steel qualities in a two - vessel - system

摘要

A method and an apparatus for the production of masses steel - or high-quality, different steel grades in a two - vessel - plant (1) improve the yield of crude steel in the case of a molten bath depth (15) of about 1000 mm to 1800 mm, wherein the buoyancy free beams (14a) of the bottom flushing stones (14) in each case within a minimum distance (16) of 2 / 3 to the molten puddle edge (17) and with a distance (18) of 1 / 3 to the molten bath center (19) in the case of a bladder angle alpha = 15° to 40° of the nozzles (6b) - an oxygen top blowing lance (6) to the vertical lift and the free beams (14a) with a maximum of 2 nm³ Argon or nitrogen / min and bottom flushing stone (14) are formed.