METHOD TO REPAIR COMPROMISED INLET OUTLET PIPING

摘要

Pipe fractures in cooling staves of blast furnaces are a common failure mechanism Herein is a repair method for a cooling stave utilized in a blast furnace, the cooling stave having a compromised stave inlet outlet pipe attached to the cooling pipe in the cooling stave, the method comprises of the steps of inserting a rigid pipe into the compromised stave inlet outlet pipe to form a first annulus; inflating a bladder disposed inside the inner pipe and cooling stave; injecting a first uncured epoxy material into the first annulus; permitting the first uncured epoxy to cure; and removing the bladder.