The flat arch legs of the port blowing outlet in the float glass furnace production line tilted and shifted, causing them to partially detach, posing a threat to the furnace's structural safety. Our company utilized ceramic welding technology, in conjunction with a high-temperature furnace periscope, to weld the tilted and shifted flat arch legs of the blowing outlet to adjacent walls. This prevented further deterioration and extended the furnace's service life by ten months!