BURNER OF MELTING FURNACE

PURPOSE:To make it possible to raise the temperature of the tap hole rapidly even when its temperature falls temporarily by installing a sludge burner and an auxiliary burner at the positions which are lower than the center of the height of the furnace wall and at the same time fixing one of the burners or both on a rotating body which rotates on a penetrating axis of the furnace wall. CONSTITUTION:An object to be burned which is led to a sludge burner 4 is jetted out towards the inner circumferential wall of the main body 1 of a melting furnace with the fuel for an auxiliary burner 5 so as to burn the object to be burned as it swirls in the furnace, and it melts like slag and is caught by the furnace wall face, and it flows out of a tap hole 3. The temperature of the tap hole 3 falls temporarily if there is an external disturbance such as a variation in the quantity of supply of objects to be burned, a variation in their components, etc. This fall in temperature is detected by a thermocouple, etc., and an electric motor 54 is driven and its rotational force is transmitted to a rotating body 52 through a gear train 53. The rotating body 52 is thereby rotated anticlockwise in the range of angle of theta on a penetrating axis 0-0 which intersects the furnace wall and the position of the burner 50 of the auxiliary burner 5 moves by a distance L. As a result fuel is jetted out of the auxiliary burner 5 towards the vicinity of the tap hole 3, and by the combustion of the fuel the tap hole 3 is heated and it rapidly recovers its original temperature.