[1]付双成,雒维文,陆明佳,等.桨叶干燥机的内部流场数值模拟分析[J].常州大学学报(自然科学版),2020,32(02):53-59.[doi:10.3969/j.issn.2095-0411.2020.02.007]
　FU Shuangcheng,LUO Weiwen,LU Mingjia,et al.Numerical Simulation Analysis of Internal Flow Field of Paddle Dryer[J].Journal of Changzhou University(Natural Science Edition),2020,32(02):53-59.[doi:10.3969/j.issn.2095-0411.2020.02.007]
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桨叶干燥机的内部流场数值模拟分析()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第32卷
期数:
2020年02期
页码:
53-59
栏目:
机械制造及其自动化
出版日期:
2020-03-28

文章信息/Info

Title:
Numerical Simulation Analysis of Internal Flow Field of Paddle Dryer
文章编号:
2095-0411(2020)02-0053-07
作者:
付双成1; 2; 雒维文1; 2; 陆明佳1; 2; 袁惠新1; 2; 刘雪东1; 2; 郭文元3
(1.常州大学 机械工程学院,江苏 常州 213164; 2.常州大学 江苏省绿色过程装备重点实验室,江苏 常州 213164; 3.中石化宁波工程有限公司,浙江 宁波 315103)
Author(s):
FU Shuangcheng1; 2;  LUO Weiwen1; 2;  LU Mingjia1; 2;  YUAN Huixin1; 2; LIU Xuedong1; 2;  GUO Wenyuan3
(1. School of Mechanical Engineering,Changzhou University,Changzhou 213164,China; 2. Jiangsu Key Laboratory of Green Process Equipment,Changzhou University,Changzhou 213164,China; 3. Sinopec Ningbo Engineering Co., Ltd., Ningbo 315103, China)
关键词:
污泥干化;  推料;  蒸发;  数值模拟
Keywords:
sludge drying;  pushing material;  evaporation;  numerical simulation
分类号:
TK 173
DOI:
10.3969/j.issn.2095-0411.2020.02.007
文献标志码:
A
摘要:
桨叶干燥机是目前应用比较广泛的污泥干化处理设备,桨叶干燥机结构简单、紧凑,运行过程中不产生高温和高浓度粉尘,安全性高。以实物样机为参考进行建模,利用计算流体力学(CFD)软件对桨叶干燥机内部推料过程和污泥蒸发过程进行模拟研究。结果显示,圆盘刮片式桨叶具有搅拌作用,可以加速污泥的热量传递,有利于污泥水分进行蒸发,并且有明显的轴向推料作用; 污泥蒸发过程的模拟利用UDF自定义蒸发模型,污泥进入到干燥机中经历了快速的升温、饱和温度下的蒸发过程,在出口附近的刮片附近蒸发过程减弱,污泥含水量趋于平稳。模拟结果可为改进桨叶干燥机的结构和提高干燥机的干化效率提供了参考。
Abstract:
Paddle dryer is currently widely used sludge drying equipment, and it is simple and compact in structure. It does not produce high temperature, high concentration and of dust and it shows high safety during operation. The physical prototype was used as a reference for modeling. The computational fluid dynamics(CFD)software was used to simulate the internal pushing process and sludge evaporation process of the blade dryer. The results show that disc scraper paddle had stirring effect. It could accelerate the heat transfer of sludge. It is conducive to sludge evaporation, and there was a clear role in the axial thrust; The sludge evaporation process simulation used UDF custom evaporation model. The sludge entered the dryer, and it experienced rapid warming and the evaporation process at saturation temperature. The evaporation process weakened in the vicinity of the exit of the blade, and the sludge moisture content tended to be stable. The simulation results can provide a reference for improving the structure of the paddle dryer and improving the drying efficiency of the dryer.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-10-04。
基金项目:中国石化科技开发资助项目(319007-2)。
作者简介:付双成(1976—),男,黑龙江绥化人,博士,副教授。E-mail:fushch711@163.com
更新日期/Last Update: 2020-04-28