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- Title
CA<sub>6</sub> 质耐火材料在水泥回转窑过渡带的应用及损毁机制.
- Authors
李斌; 刘杰; 朱波; 郭玉涛; 任博; 封吉圣; 陈俊红
- Abstract
In order to explore the application feasibility of CA6 refractories in the transition zone of cement rotary kilns, CA6 refractories with a porosity of 27.7% were prepared and then lined in the transition zone of a 5 000 ton/day rotary kiln. After two months operation, the residual thickness of the bricks was still 180 200 mm, exhibiting good corrosion resistance. Compared with magnesium aluminate spinel bricks, the cylinder temperature lined with CA6 reduced by 40-80 °C, performing a significant energy-saving and thermal insulation effect. As for the damage mechanism, it is believed that although alkali metals can react with CA6 refractories to produce KAI11O17, the reaction is slow, so its impact on material damage is mild; in addition to the corrosion of cement clinker, a large amount of KCI sediment is the key factor for the structural deterioration of CA6 refractories; CA6 refractories can be used in the transition zone of rotary kilns, but better densification is required.
- Publication
Refractories / Naihuo Cailiao, 2023, Vol 57, Issue 6, p479
- ISSN
1001-1935
- Publication type
Article
- DOI
10.3969/j.issn.1001-1935.2023.06.004