New technology progress of refractories for iron and steel industry.

Recent new technologies and progress of refractories for iron and steel industry were introduced, including composite bonded silicon carbide materials for coke dry quenching furnaces, key refractories for hydrogen-based shaft furnaces, key refractories for OY furnaces (improved COREX-C3000), silicon carbide tuyere combination bricks for iron-making blast furnaces, environmentally friendly long-life Al₂O₃-SiC-C castables for blast furnace iron trough, zirconia slide plates for slag skimming of converters, refractories for refining ladles, gradient functional refractories for continuous casting, high-efficiency thermal insulation materials for high-temperature devices, recycling of hot blast furnace slag and foam ceramic filters for casting. Through the adoption of these new technologies, the requirements of new equipment and new technology in iron and steel industry can be met, improving the service life of existing furnace lining or key refractory materials, saving energy and decreasing consumption, purifying molten steel or molten iron, and strengthening the utilization of solid waste. [ABSTRACT FROM AUTHOR]