Novel energy-saving coke oven door lining brick and manufacturing method thereof

Abstract

The invention relates to a novel energy-saving coke oven door lining brick and a manufacturing method thereof. The coke oven door lining brick comprises an oven door lining brick body, a heat insulation layer and a glaze layer, wherein the oven door lining brick body is a refractory castable prefabricated part; the heat insulation layer is arranged in the oven door lining brick body and is completely wrapped by the oven door lining brick body; the inner surface, namely the working surface, of the oven door lining brick body is coated with the glaze layer; a fixed transverse rod hole is formed in the middle of the oven door lining brick body along the length direction; a plurality of fastener connecting holes are formed in the outer side of the oven door lining brick body; the diameter of each fastener connecting hole is greater than that of the fixed transverse rod hole; and the inner end of each fastener connecting hole vertically penetrates through the fixed transverse rod hole. According to the novel energy-saving coke oven door lining brick disclosed by the invention, the heat insulation layer is completely wrapped in the castable prefabricated part, and the working surface of the oven door lining brick body is coated with the glaze layer, so that the purposes of reducing the weight of an oven door and prolonging the service life of the heat insulation layer can be achieved, the heat loss of a furnace end of a carbonization chamber can be stably reduced for a long time, and the temperature of the outer wall of the oven door is reduced.

Description

technical field [0001] The invention relates to a coke oven door lining brick, in particular to a novel energy-saving coke oven door lining brick and a manufacturing method thereof. Background technique [0002] The coke oven is the basic thermal equipment in the coking industry, which is used to provide important coke and gas for the smelting industry. The working temperature of the carbonization chamber is about 900°C to 1100°C. The coke oven door is set on both sides of the carbonization chamber, and the furnace door lining brick acts as a heat insulator between the iron body of the furnace door and the red coke to prevent carbonization. The loss of indoor heat plays a protective role on the furnace door. [0003] The furnace door lining bricks used in China were originally mainly cordierite bricks. Cordierite bricks have high thermal shock stability, but tar and other substances easily penetrate into the inside of the bricks and adhere to the surface of the lining brick...

AI Technical Summary

Problems solved by technology

[0006] However, although the thermal insulation layer in the above technical solution is not in direct contact with the briquettes, tar can easily enter the thermal insulation layer through gaps or holes during the coke oven production process. After a long period of time, the thermal insulation layer will be reduced or even lost. heat effect

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