When coke oven becomes aged,the oven sole bricks would appear damages,which could cause higher pushing current even pushing trouble.The damaged oven sole bricks are replaced by zero expansion silica brick.Its hot repair process is introduced.As a result,the pushing resistance can be dramatically reduced so that the service life of coke oven can be extended.

"> Replacement of oven sole bricks, Zero expansion silica brick, Temperature control,  , Hot repair