赵松海,刘松辉,魏丽颖,汪 澜,管学茂.MgO及铁相调整对高镁熟料烧成的影响*[J].水泥工程,2014,27(4):14-17 |
MgO及铁相调整对高镁熟料烧成的影响* |
Effect of MgO and iron phase on high magnesian clinker firing |
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DOI: |
中文关键词: MgO,C4AF,熟料,易烧性 |
英文关键词: MgO,C4AF,clinker,burnability |
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中文摘要: |
通过熟料矿物组成计算调整率值,分别在1 350 ℃,1 400 ℃和1 450 ℃条件下烧制了MgO及C4AF含量不同的高镁熟料,并利用化学分析、XRD测试及岩相结构分析等方法,分析了熟料MgO与C4AF对高镁熟料烧成的影响。结果表明:(1)1 350 ℃低温煅烧时,熟料f-CaO含量随MgO增加而显著降低,MgO对熟料烧成有利,而1 400 ℃以上高温煅烧时f-CaO含量却随MgO增加而升高,MgO对熟料烧成不利。(2)熟料中w(MgO)含量在4%~9%时,控制w(C4AF)在14%~14.5%范围内较为合适,1 450 ℃煅烧熟料的w(f-CaO)可满足≤1.5%的要求。 |
英文摘要: |
By adjusting modulus according to clinker mineral composition calculation, clinker of different content of C4AF and MgO was burned at temperature of 1 350 ℃,1 400 ℃ and 1 450 ℃ respectively, and with chemical analysis, XRD test and petrographic structure analysis, the impact of C4AF and MgO on high magnesian clinker firing was analysed. The results show as follow,(1) when burned at a lower temperature of 103500℃, clinker f-CaO content will significantly decreased with the increase of MgO content, which means MgO content is benefit for clinker firing; and when burned at a high temperature of above 1 400 ℃, there was opposite outcome, which means MgO content is harmful to clinker firing; (3) when clinker MgO content is at 4%~9%, the w(C4AF) should be controlled at 14%~14.5%, and the burned clinker f-CaO content could satisfy requirement of ≤1.5%. |
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