原料粒度分布对沸腾氯化工艺的影响
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摘要
在沸腾氯化生产过程中,原料粒度、配碳比、反应温度和气流速度等是影响沸腾氯化效果的主要因素,而原料粒度及其分布是其中最重要的影响因素。原料的最小粒径应大于氯化过程中飘逸出炉体的最大颗粒粒径,最大粒径应小于现有载气压力能够浮起的最大颗粒粒径。从化学动力学和流体动力学两个角度计算气流速度和原料粒度匹配,并通过生产实践中的数据分析进行粒度范围修正,总结出与沸腾氯化设备结构相匹配的原料粒度分布范围。
In the process of boiling chlorination production,the particle size,the ratio of carbon to carbon,the reaction temperature and the airflow velocity are the main factors affecting the chlorination effect.The particle size and its distribution are the most important influencing factors.The minimum particle size of the raw material should be greater than the maximum particle size of the furnace in the process of chlorination,the maximum particle size of the material in the process of floating the body,the maximum particle size should be less than the existing carrier gas pressure can float the largest particle size.From the two aspects of chemical kinetics and hydrodynamics,the velocity of air flow and the particle size matching were calculated,the particle size distribution of the raw material was matched by calculating the airflow velocity and the particle size matching of the raw materials,and the particle size range was corrected by the data analysis in the production practice range.The distribution range of the raw material particle size was matched with the structure of the boiling chiorination equipment.
In the process of boiling chlorination production,the particle size,the ratio of carbon to carbon,the reaction temperature and the airflow velocity are the main factors affecting the chlorination effect.The particle size and its distribution are the most important influencing factors.The minimum particle size of the raw material should be greater than the maximum particle size of the furnace in the process of chlorination,the maximum particle size of the material in the process of floating the body,the maximum particle size should be less than the existing carrier gas pressure can float the largest particle size.From the two aspects of chemical kinetics and hydrodynamics,the velocity of air flow and the particle size matching were calculated,the particle size distribution of the raw material was matched by calculating the airflow velocity and the particle size matching of the raw materials,and the particle size range was corrected by the data analysis in the production practice range.The distribution range of the raw material particle size was matched with the structure of the boiling chiorination equipment.
引文
[1]邢生智.锆沸腾氯化炉冷凝器制度优化探索[C]//第23届全国铁合金学术研讨会论文集.石嘴山:中国金属学会铁合金分会,2014:417.
[2]莫畏,邓国株,罗方承.钛冶金[M].北京:冶金工业出版社,2006.
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[4]张玉驰,张伟,于学成,等.用锆英石生产ZrCl4沸腾氯化工艺探讨[J].稀有金属快报,2004,23(5):34.
[5]董鹏莉.210t钢包底吹工艺优化物理模拟[J].钢铁,2016,51(7):41.
[6]汪成义,杨利彬,曾加庆.大型转炉顶底复吹混合效果模拟[J].钢铁,2016,51(10):15.
[7]张勇,赵跃民,董良,等.空气重介质流化床黏度的测量研究[J].矿山机械,2015,12(5):103.
[8]赵跃民,李功民,骆振福,等.块式干法重介质流化床选煤理论与工业应用[J].煤炭学报,2014,8(6):1566.
[9]蒋维钧,雷良恒,刘茂林,等.化工原理[M].北京:清华大学出版社,2010.
[10]梁珂艳,陶秀祥,惠鹏岳.用落球法研究气固浓相流化床表观粘度[J].过程工程学报,2014,14(6):901.
[11]徐其言,王建军,郭磊铁.矿粉流态化还原过程黏结机理分析[J].金属矿山,2016,2(4):108.
[2]莫畏,邓国株,罗方承.钛冶金[M].北京:冶金工业出版社,2006.
[3]贺靖峰,赵跃民,何亚群,等.浓相气固高密度流化床内的气泡动力学行为特性[J].煤炭学报,2012,37(2):295.
[4]张玉驰,张伟,于学成,等.用锆英石生产ZrCl4沸腾氯化工艺探讨[J].稀有金属快报,2004,23(5):34.
[5]董鹏莉.210t钢包底吹工艺优化物理模拟[J].钢铁,2016,51(7):41.
[6]汪成义,杨利彬,曾加庆.大型转炉顶底复吹混合效果模拟[J].钢铁,2016,51(10):15.
[7]张勇,赵跃民,董良,等.空气重介质流化床黏度的测量研究[J].矿山机械,2015,12(5):103.
[8]赵跃民,李功民,骆振福,等.块式干法重介质流化床选煤理论与工业应用[J].煤炭学报,2014,8(6):1566.
[9]蒋维钧,雷良恒,刘茂林,等.化工原理[M].北京:清华大学出版社,2010.
[10]梁珂艳,陶秀祥,惠鹏岳.用落球法研究气固浓相流化床表观粘度[J].过程工程学报,2014,14(6):901.
[11]徐其言,王建军,郭磊铁.矿粉流态化还原过程黏结机理分析[J].金属矿山,2016,2(4):108.