论文部分内容阅读
本文通过试验研究将多年堆积如山的转炉钢渣,经济合理地用于烧结生产中。首先在试验室内进行系统的烧结试验,然后用于烧结生产。研究增加钢渣配比,相应地减少燃料用量,获得最佳钢渣用量64公斤/吨,烧结矿矿物结构改变,结晶程度提高。同时,加入铜渣后,虽然烧结矿磷含量升高,但富集速度较慢,对抑制β-2 CaO-SiO_2有良好的作用,可以改善烧结矿质量。热能消耗减少,每吨烧结矿节省固体燃料8.8公斤/吨。还研究烧结矿品位的影响,加入适宜钢渣量,对于改善高品位烧结矿质量有明显效果。此外,还研究适宜的钢渣粒度为0～4毫米,用此粒级钢渣代替0～2.5毫米粒级钢渣做烧结熔剂,不仅烧结生产率提高,还可以改善烧结矿质量,增加盈利。
In this paper, through years of research, the converter steel slag accumulated in the mountains for many years is economically and reasonably used in the sintering production. The first systematic sintering test in the laboratory, and then used for sintering production. Study to increase the ratio of steel slag, and accordingly reduce the amount of fuel to obtain the best amount of steel slag 64 kg / ton, sinter mineral structure changes, the degree of crystallization increased. At the same time, after the addition of copper slag, although the content of phosphorus in sinter increases, the enrichment rate is slow, which has a good effect on the inhibition of β-2 CaO-SiO 2 and can improve the quality of sinter. Thermal energy consumption is reduced, saving 8.8 kg / t of solid fuel per ton of sinter. Also study the impact of sinter grade, adding appropriate amount of steel slag, for improving the quality of high-grade sinter has a significant effect. In addition, the suitable size of steel slag is studied as 0-4 mm. Using this grade of steel slag instead of 0-2.5 mm grain size steel slag as sintering flux can not only improve the sintering productivity, but also improve sinter quality and increase profitability.