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高炉冶炼钒钛矿时炉缸会产生大量的沉积物,影响高炉正常生产。对炉缸沉积物进行了检测,对高炉渣的冶金性能进行了试验研究,结果表明:沉积物的成分复杂,其中一些沉积物的铝、硅含量较大;沉积物形成的主要来源为TiC包裹金属铁的沉降聚集,渣铁对耐火材料的侵蚀,含高熔点物质的高黏度炉渣在炉底堆积。高铝中钛渣的黏度过大,炉渣碳含量较高是导致沉积物形成的主要原因,因此,改善高铝中钛渣的冶金性能可以有效抑制沉积物的形成。
When blast furnace smelting vanadium-titanium ore will produce a lot of hearth deposits, affecting the normal production of the blast furnace. The sediments in the hearth were tested and the metallurgical properties of the blast furnace slag were tested. The results show that the composition of the sediments is complex, and some of the sediments have a large content of aluminum and silicon. The main sources of sediments are TiC Metal iron settling aggregation, slag iron erosion of refractory materials, high-melting slag containing high-viscosity material in the furnace bottom accumulation. The high viscosity of titanium slag in high aluminum and the high carbon content in slag lead to the formation of sediments. Therefore, improving the metallurgical properties of titanium slag in high aluminum can effectively inhibit the formation of sediments.