Roasting protective cover for stopper rod of tundish

The utility model discloses a roasting protective cover for a stopper rod of a tundish, which belongs to the field of steel-making equipment and is used for solving the problem that a rod core is damaged due to over high temperature after the rod core of the stopper rod is roasted. The roasting protective cover comprises a panel and a hollow cylinder which is sunk in the middle of the panel; a stopper rod hole is arranged on the bottom surface of the hollow cylinder; and the panel and the hollow cylinder sunk in the middle of the panel are formed by splicing two symmetrical parts. As the safe temperature bearing range of the rod core of the stopper rod is less than or equal to 1250 DEG C, when in use, the roasting protective cover is covered on the rod core of the stopper rod, the temperature of the rod core of the stopper rod of the tundish is about 900 DEG C after the rod core of the stopper rod is roasted, the temperature is reduced by 150-200 DEG C compared with the temperature before the roasting protective cover is used; the rod core of the stopper rod is in the safe temperature range; and the roasting damage on the rod core of the stopper rod is avoided; and the roasting protective cover can ensure a good roasting effect on the stopper rod and the normal function of a connection position of the stopper rod, thereby ensuring the smooth production; and the roasting protective cover is convenient to dismantle and assemble, has low manufacturing cost and can be repeatedly used.