| CaCO3在硼酸盐中的热分解行为及其 对熔体泡沫化的影响 |
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| 引用本文： | 储少军,牛强,吴铿,牛四通. CaCO3在硼酸盐中的热分解行为及其 对熔体泡沫化的影响[J]. 过程工程学报, 2000, 21(2): 158-163 |
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| 作者姓名： | 储少军 牛强 吴铿 牛四通 |
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| 作者单位： | 北京科技大学冶金学院,北京 100083 |
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| 基金项目： | 国家自然科学基金，59574026， |
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| 摘 要： | 以Na2B4O7熔体模拟冶金炉渣,提出了CaCO3在熔渣中热分解的一种数学模型.实验证明, CaCO3粒度变化和熔渣中CaO含量变化对内生气源发泡过程的影响均与熔渣中CaCO3的分解行为有关.因此,吹气法测定的泡沫化指数Σ不能用于评价因内生气源引起的熔渣泡沫化稳定性.
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| 关 键 词： | 泡沫渣 碳酸钙 热分解 Na2B4O7熔体 foaming slag calcium carbonate thermal decomposition |
| 文章编号： | 1001-2052(2000)02-0158-06 |
| 修稿时间： | 1999-03-03 |
Decomposition of CaCO3 in Molten Borate and Its Effect on Slag Foaming Behavior |
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| CHU Shao-jun,NIU Qiang,WU Keng,NIU Si-tong. Decomposition of CaCO3 in Molten Borate and Its Effect on Slag Foaming Behavior[J]. Chinese Journal of Process Engineering, 2000, 21(2): 158-163 |
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| Authors: | CHU Shao-jun NIU Qiang WU Keng NIU Si-tong |
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| Abstract: | A model for heat decomposition of CaCO3 in Na2B4O7 molten slag is presented in the paper. The experimental results show that the size of CaCO3 particles and CaO content in slag have definite effect on foaming due to internal creation of bubbles in the slag, which is solely dependent on the decomposition behavior of CaCO3 in molten slag. Therefore, the foaming index, , (measured with external bubbling) cannot be employed to evaluate the stability of foam generated by internany created gas bubbles in the slag. |
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| Keywords: | foaming slag calcium carbonate thermal decomposition Na2B4O7 melt |
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