利用铝土矿选矿废渣生产铁矿石烧结矿的研究

IF 0.8 Q4 METALLURGY & METALLURGICAL ENGINEERING
A. Zhunussova, P. Bykov, A. Zhunusov, A. Kenzhebekova
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引用次数: 0

摘要

本文介绍了废氧化铝铁砂的结块和烧结矿在炼钢中代替金属料的研究结果。此时,在加工铝土矿的过程中,JSC“哈萨克斯坦铝业”生产了大量的细粒,这对黑色冶金有很大的兴趣。氧化铝生产产生的废物包括各种废污泥,包括红污泥、灰污泥和铁砂。从化学成分上看,含铁砂可归为氧化铝含量高的铁矿石原料。这些问题大部分都可以通过初步的颗粒结块来消除。在这项工作中,结块研究使建立烧结铁砂的最佳参数成为可能。当燃料用量为10%时,烧结性能最佳。铁砂与其他冶金废弃物混合烧结的最佳参数为生产率- 0.92 t / m2 h,机械强度- 80.0%,烧结速度- 19.3 mm/min,产量- 82.0%,层内最高温度为1340°С。在感应熔炼炉上进行的实验室熔体试验结果表明,在钢铁冶炼中使用烧结矿代替金属炉料是可能的。进行的熔炼证实了使用烧结矿的基本可能性,烧结矿由生产含铁砂的氧化铝废料制成,是一种人造炉料,适用于在冶炼成分类似铸铁的铁碳合金时作为金属炉料的5%添加剂使用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Research of the production of iron ore sinter from bauxite processing waste
This article presents the results of a study of the agglomeration of waste alumina ferrous sands and the use of sinter as a substitute for metal charge in steelmaking. At this time, in the process of processing bauxite, JSC "Aluminium of Kazakhstan" produces a large number of fines, which is of great interest to ferrous metallurgy. Wastes from alumina production include a variety of waste sludge, including red, gray sludge, and ferrous sands. According to the chemical composition, ferrous sands can be attributed to iron ore material with a high content of alumina. Most of these problems are eliminated by preliminary agglomeration of fines. In this work, agglomeration studies made it possible to establish the optimal parameters for sintering ferrous sands. When using 10% fuel, the best sintering performance is achieved. The optimal parameters for sintering ferrous sands mixed with other metallurgical wastes are such as productivity - 0.92 t / m2 h, mechanical strength - 80.0%, sintering speed - 19.3 mm/min, yield - 82.0%, the maximum temperature in the layer is 1340 °С. The results of laboratory melt carried out in an induction melting furnace indicate the possibility of using a sinter as a substitute for metal charge in iron and steel smelting. The conducted melting confirms the fundamental possibility of using a sinter, made from waste products of alumina production of ferrous sands, is a man-made charge material that is suitable for use as a 5% additive to the metal charge in the smelting of iron-carbon alloys similar in composition to cast irons.
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42.90%
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