| NS-A型分解炉系统冷模试验结果与分析 |
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| 引用本文： | 嵇鹰,徐德龙,李兆锋. NS-A型分解炉系统冷模试验结果与分析[J]. 西安建筑科技大学学报(自然科学版), 2004, 36(4): 470-474 |
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| 作者姓名： | 嵇鹰 徐德龙 李兆锋 |
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| 作者单位： | 西安建筑科技大学粉体工程研究所,陕西,西安,710055 |
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| 基金项目： | 国家科学技术部重点科技项目(K2000-03-56) |
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| 摘 要： | 利用NS—A型分解炉十分之一的冷态模型测试了炉、窑两路气的管道阻力特性，分解炉内的流场及物料停留时间．测试说明：1要注意调节炉、窑两路气的管道阻力．以满足需要的流量分配；2分解炉内气体流动几乎是平推流，返混小．固气停留时间比较小，要使燃料充分燃烧，必须考虑足够大的炉容；3由于炉内物料有分层现象．减小了分解炉的有效容积，因此设计分解炉要尽量避免该种现象发生．
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| 关 键 词： | 分解炉 窑 流场 测试 固气停留时间比 |
| 文章编号： | 1006-7930(2004)04-0470-05 |
| 修稿时间： | 2004-06-25 |
Experimental tests on a laboratory model of NS-A Type Calciner and analysis of the measurements |
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| JI Ying,XU De-long LI Zhao-feng. Experimental tests on a laboratory model of NS-A Type Calciner and analysis of the measurements[J]. Journal of Xi'an University of Architecture & Technology, 2004, 36(4): 470-474 |
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| Authors: | JI Ying XU De-long LI Zhao-feng |
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| Abstract: | By experiment carried out on a model calciner of NS-A type of scale of one to ten, the characteristics of duct resistance to gas flow in the rotary kiln and in the calciner were determined. Velocity profile in the calciner and the meal retention time in the calciner were measured. Measurements indicate: Carefully adjust the flow resistance in the kiln and calciner lines to achieve reasonable flow distribution between the two lines; It is observed that the gas flow in a plug pattern existed in the calciner and the back-mixing is minor; Sufficient volume capacity of the calciner must be provided for the fuel to burn perfectly; In the design of the calciner, the delamination should be avoided in that it may cause decrease in the effective volume of the calciner. |
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| Keywords: | calciner kiln flow field determination the ratio of retention time of the solid to that of the gas |
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