the invention relates to metallurgy and , more specifically , to iron - and - steel producing plants . the metallurgical complex is provided with three production platforms arranged one above the other . the middle platform is capable of rotating about a central axis and is provided with three identical lined containers situated in three positions at an angle of 120 ° to each other . the top platform is provided with means for melting metal and means for processing the melt capable of rising and lowering and installed on two adjacent lined containers to form steelmaking arc furnace positions and a melt processing unit position , respectively . the casting station is mounted on the bottom platform in the immediate vicinity of the lined container disposed in the third position . the invention provides high - level automation in the production of molten steel and cast blanks