黄晓艳,胡建杭.Al2O3对艾萨余热锅炉辐射区结渣熔融特性的影响[J].有色金属(冶炼部分),2019(2):10-14.
Al2O3对艾萨余热锅炉辐射区结渣熔融特性的影响
Effect of Al2O3 on Fusibility of Slag in Radiation Zone of ISA Waste Heat Boiler
投稿时间:2018-11-17  修订日期:2018-11-20
DOI:doi:10.3969/j.issn.1007-7545.2019.02.003
中文关键词:  Al2O3  余热锅炉  辐射区  结渣  熔融特性  艾萨法
英文关键词:Al2O3  waste heat boiler  radiation zone  slag  fusibility  ISA Process
基金项目:国家自然科学基金联合基金资助项目(U1602272)
     
作者单位
黄晓艳 省部共建复杂有色金属资源清洁利用国家重点实验室
胡建杭 昆明理工大学冶金与能源工程学院
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中文摘要:
      以某铜冶金艾萨熔炼炉余热锅炉辐射区结渣为研究对象,研究了Al2O3在高温下对渣样熔融特性的影响。结果表明,渣样熔融温度随着Al2O3比例(1%~16.7%)的提高而提高,当Al2O3达到16.7%、温度1 370 ℃时,渣样并没有出现软化状态。添加16.7%的Al2O3的渣样在1 100 ℃灼烧1 h,渣样中大部分仍为Fe3O4,只有微弱的铁铝尖晶石峰出现;当灼烧温度达到1 200 ℃时,铁铝尖晶石的特征峰较为明显,即生成了大量铁铝尖晶石。通过FactSage 7.2进行的热力学反应平衡计算结果与XRD结果一致。
英文摘要:
      With slag in radiation zone of copper smelting waste heat boiler as research object, effect of Al2O3 addition on fusibility of slag samples at high temperature was studied. The results show that melting temperature of slag sample rises with increase of Al2O3 ratio (1%~16.7%). When Al2O3 reaches 20 % at temperature of 1 370 ℃, the slag sample does not present softening state. Slag samples with 16.7% Al2O3 addition were kept being burned for one hour at 1 100 ℃, most of the slag samples are still in Fe3O4 phase, and only weak Fe-Al spinel peaks appear. The characteristic peaks of Fe-Al spinel are more obvious when temperature reaches 1 200 ℃, that is, a large amount of Fe-Al spinel is formed at the target temperature. Thermodynamic equilibrium calculation results carried out by Fact Sage 7.2 accord with XRD results.
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