Coating composition for carbonization chamber of coke oven and application method

摘要

PCT No. PCT/JP98/00466 Sec. 371 Date Sep. 8, 1998 Sec. 102(e) Date Sep. 8, 1998 PCT Filed Feb. 4, 1998 PCT Pub. No. WO98/38144 PCT Pub. Date Mar. 9, 1998The present invention provides a coating layer of the coke oven having a high strength, high impact resistance and excellent smoothness to enable long term protection of the fire brick of the coke oven. Carbon adhered to the brick can be removed by spraying a coating agent with a glaze layer mainly composed of 18 to 70% by weight of SiO2 and 10 to 60% by weight of Na2O and/or K2O and containing one or a plurality of 2 to 14% by weight of P2O5, 0.5 to 25% by weight of BaO, 0.5 to 25% by weight of SrO and 0.5 to 20% by weight of Fe2O3 onto the surface of a high temperature firebrick, thereby obtaining an excellent coating layer.