METHOD FOR TREATING SLAG FLOWING FROM A METALLURGICAL VESSEL AND A DEVICE FOR CARRYING OUT SAID METHOD

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. The device also comprises a drive for displacing to/from the vessel. In the position closest to the vessel, the device is fed with air and water from a stationary plant for forcedly cooling the individual slam streams and the parts (pieces) of slam. The throat grate displacing drives and a conveyor belt drive are mounted on the device assembled body, and the roll and a drive for rotating it, when the shaped belt is used, are fastened thereto. The ribs of the throat grate are made from tensioned steel ropes. La présente invention concerne la production d'acier dans l'industrie sidérurgique. Le procédé de cette invention consiste à diviser un courant ininterrompu de scorie sortant par gravité d'une cuve métallurgique et tombant en dessous de celle-ci en courants individuels dans le sens de la longueur du courant ininterrompu, à effectuer le refroidissement forcé des courants individuels ainsi obtenus, à diviser les courants individuels en parties (morceaux) dans le sens de la largeur des courants individuels, à effectuer le refroidissement forcé de ces parties et à les placer sur un tapis roulant sur lequel les parties/morceaux individuels sont refroidis de force et éloignés de la cuve. Un tapis roulant profilé (à cavités), sur lequel les morceaux de scorie sont broyés par un cylindre, est utilisé pour un broyage supplémentaire. Le dispositif de cette invention permettant de mettre en oeuvre l'ensemble des opérations susmentionnées comprend au moins trois grilles de gueulard disposées horizontalement dans un corps assem