包钢大型高炉冶炼世界上罕见的富集稀土、铌、钾、钠和氟等多金属共生铁矿石,由于矿石的冶金特性、风口大量破损、造成包钢炼铁生产技术上的一项重大难关。 所有破损的风口几乎全是被炉缸内的高温金属铁液接触熔损掉的。因此,要从风口的结构、材质、和冷却方式上研制高压水强化冷却的螺旋铜管风口,并开展抗铁流冲熔性能的研究。 Large-scale blast furnace smelting in the world rare rare earth, niobium, potassium, sodium and fluorine and other multi-metal symbiotic iron ore, due to the metallurgical characteristics of the ore, a large number of damaged tuyere, resulting in Baotou Iron and Steel production technology is a major Difficulties. Almost all of the damaged tuyere is melted by the high temperature molten metal in the hearth. Therefore, from the tuyere structure, material, and cooling methods to develop high-pressure water cooling spiral copper tuyere, and anti-iron flow red melting properties.