宁国鹏,王德成,王光辉,罗小燕,李强.苜蓿干燥与茎叶分离设备设计与CFD模拟[J].农业机械学报,2011,42(1):84-89,133.
Ning Guopeng,Wang Decheng,Wang Guanghui,Luo Xiaoyan,Li Qiang.Design and CFD Simulation of Quad-pass Rotary Drum Dryer-separator[J].Transactions of the Chinese Society for Agricultural Machinery,2011,42(1):84-89,133.
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苜蓿干燥与茎叶分离设备设计与CFD模拟   [下载全文]
Design and CFD Simulation of Quad-pass Rotary Drum Dryer-separator   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.2011.01.018
中文关键词:  苜蓿干燥与茎叶分离设备设计与CFD模拟
基金项目:“十一五”国家科技支撑计划资助项目(2006BAD11A0902)
作者单位
宁国鹏 中国农业大学 
王德成 中国农业大学 
王光辉 中国农业大学 
罗小燕 中国农业大学 
李强 中国农业大学 
中文摘要:设计了滚筒式苜蓿干燥与茎叶分离设备,可在完成干燥的同时实现茎叶分离加工。采用预干燥滚筒与三回程干燥滚筒的组合结构,可实现苜蓿茎、叶的均衡干燥。利用CFD方法对设备内部的空气流场进行了仿真模拟,可以看出流场的风速分布反映了设备的结构特点,且不存在明显的涡流现象,能够满足输运物料、均衡干燥和茎叶分离的要求。风门开启面积对分离室内的风速影响显著,并且呈现出一定的规律。根据模拟结果可得,满足茎叶分离风速条件的风门最佳开启面积为(150×150)~(200×150)mm2。
Ning Guopeng  Wang Decheng  Wang Guanghui  Luo Xiaoyan  Li Qiang
China Agricultural University;China Agricultural University;China Agricultural University;China Agricultural University;China Agricultural University
Key Words:Design and CFD Simulation of Quad-pass Rotary Drum Dryer-separator
Abstract:For the sake of achieving uniform drying and separation of alfalfa leaves and stems in one process, a quad-pass rotary drum dryer-separator was designed, which mainly comprised the pre-drying, quick-drying, tempering and separating zones. The air flow in the dryer-separator was simulated by using CFD method with applying the standard k—ε model, and the effect of different opening areas of the adjusting gate on the velocity in the separating chamber was analyzed emphatically. It was found that the desired velocity for leaf-stem separation in the separating chamber was gained, when the opening area of the adjusting gate was (150×150)~(200×150)mm2. 

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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