The converter nozzle, an indispensable and critical component in modern industrial steelmaking processes, primarily serves two core and practical functions throughout the smelting operation. Firstly, it provides reliable protection against severe high-temperature slag erosion caused by molten steel and liquid slag during high-intensity steelmaking reactions. Secondly, it maintains stable furnace sealing performance to ensure the enclosed and efficient working environment inside the steelmaking furnace. In the extreme high-temperature working condition of the converter, the nozzle is prone to thermal deformation, surface abrasion and structural damage under the continuous impact of high-temperature fluids. To solve these industrial problems, a complete water circulation cooling system is professionally employed to continuously reduce the overall operating temperatures of the nozzle. This efficient cooling method can significantly relieve thermal stress and effectively combat long-term erosive and abrasive damage, greatly extending the service life of key components. The main body of the converter nozzle adopts robust cast iron or steel-cast substrates as the basic structural material. Inside these high-strength metal substrates, multiple embedded cooling pipes are evenly and reasonably arranged to form a stable circulating cooling structure. This unique structural design offers significant technical and practical advantages in actual production. It possesses exceptional overall structural integrity, which can resist external mechanical impact and high-temperature thermal shock. Meanwhile, the integrated structure and specialized metal materials endow the nozzle with outstanding corrosion resistance against acidic and alkaline slag erosion. With these superior performances, the converter nozzle can maintain stable working conditions in long-cycle and high-load steelmaking production, ensuring continuous, safe and high-efficiency operation of the entire converter smelting system.
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