Abstract: A steel production method in the steel and iron industry involves dividing a vertically falling solid slag stream which flows from a steelmaking furnace into individual streams, forcedly cooling the individual streams, dividing the individual streams into parts by cutting across the movement thereof, forcedly cooling the parts and transferring them to a belt conveyor on which the separate parts are forcedly cooled and transported away from the vessel. A shaped conveyor belt, on which the slag parts are crushed by means of a cylindrical roll, is used for additional crushing.

Abstract: The invention relates to steel production in the steel and iron industry. The inventive method consists in dividing a solid slag stream which flows from a metallurgical vessel and falls down, into individual streams along the solid stream, in forcedly cooling the thus obtained individual streams, in dividing the individual streams into parts (pieces) by cutting across the movement thereof, in forcedly cooling said parts and transferring to a belt conveyor, on which said separate parts/pieces are forcedly cooled and transported away from the vessel. A shaped (with containers) conveyor belt, on which the slag pieces are crushed by means of a cylindrical roll, is used for additional crushing. The inventive device for carrying out the totality of the above-listed operations, comprises at least three throat grates which are horizontally positioned in an assembled body and one of which is provided with a drive for carrying out reciprocating motion.