Throat main protection furnace lining, the role of cloth. Throat during normal work, the temperature is 400 ~ 500 ℃, the region mainly by burden directly impact and friction effects, but the gas flow scouring relatively light. Therefore, furnace throat general using water or without water cooling steel brick (steel), the water-cooling steel brick castable, filling between the furnace shell without water-cooling steel brick of installation, cooperate with the construction of the castable. Flue gas sealing cover, general use a metal anchor adds wear-resisting refractory spray paint.
