Self-intensity of binding phase in iron ores during sintering
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摘要: 在鐵礦粉燒結過程中,熔化的礦粉在冷卻過程中起著粘結周圍未熔礦粉的作用,因此這一粘結相的自身強度是衡量燒結礦固結狀況的重要指標之一.運用這一新概念,以八種常用的鐵礦粉為對象,在固定溫度、改變堿度的條件下進行了粘結相自身強度特性的實驗研究,并對影響鐵礦粉粘結相自身強度的因素進行了理論分析.結果表明:不同種類的鐵礦粉由于其自身特性的不同,所生成的燒結粘結相的強度以及隨二元堿度的變化規律有明顯差異.以此可以作為燒結優化配礦的重要技術依據.Abstract: In sintering process, for melted mineral fines bind unmelted core ores when cooled, the self-intensity of binding phase in iron ores is one of the basic indexes to estimate sintered binding status. With eight kinds of iron ores, the self-intensity characteristic of binding phase was studied at the same temperature and different basicities and their influence factors were theoretically discussed. It is indicated that since different kinds of iron ores have different self-characteristics, the sintering intensity of binding phase and its dependence on basicity have obvious difference. As a result, the sintering intensity of binding phase can be considered as an important technical criterion for optimizing the sintering blending.
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Key words:
- iron ore /
- sintering /
- self-intensity of binding phase phase /
- ore-bending
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