METHOD FOR REPAIRING A REFRACTORY LINING OF COKE BATTERIES

The invention can be used for repairing a refractory lining of furnaces in a coke battery without said battery being brought out of the production cycle. Once the coke has been discharged from the furnaces undergoing repair and the buffer furnaces have been brought out of operation, the temperature in the buffer furnaces and the furnaces undergoing repair is reduced to a set level. Then, the heating partitions of the buffer furnaces which are adjacent to the furnaces undergoing repair are covered with a thermally insulating material, the heating partitions undergoing repair are dismantled and a new lining is applied to the heating partitions, and also the insert parts of the furnace are installed. At the same time as the dismantling of the partitions is begun, a metal structure which can be assembled and dismantled and is in the form of a bridge is fitted at the top of the coke battery which is equipped with tracks, above the section of the repair zone of the battery. The bridge consists of two longitudinal bars and a plurality of transverse bars, the number of said bars being dependent on the number of partitions undergoing repair. The bridge is fitted beneath both rails of the existing tracks in such a way that the bearing capacity of the fitted bridge is no less than the weight of one carriage which is completely loaded with a coke charge. The invention makes it possible to reduce the amount of time required for repair work, to increase the reliability of repaired partitions of a coke battery and to reduce material losses when carrying out repair work. L'invention peut s'utiliser pour des travaux de réparation sur une maçonnerie réfractaire de fours d'une batterie de fours à coke sans perturber le cycle industriel de cette dernière. Après la distribution de coke à partir des fours tampons, on réduit la température dans ces fours tampons et dans les fours en cours de réparation jusqu'à un niveau prédéterminé. Ensuite, on colle un matériau thermique isolant les espaces entre les parois servant au chauffage, qui sont adjacents aux fours en cours de réparation, et on réalise une nouvelle maçonnerie des espaces entre les parois puis on met en place les pièces à insérer du four. Parallèlement au démontage des espaces entre les parois sur la partie supérieure de la batterie à coke, qui est doté de voies de rail, on monte au-dessus de la zone des travaux une structure métallique se présentant comme un pont. Ce pont est constitué de deux poutres longitudinales e