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›› 2013, Vol. 13 ›› Issue (4): 574-579.

• 流动与传递 • 上一篇    下一篇

选粉机分级室内的颗粒运动特性

童聪 李双跃 李翔 杨军   

  1. 西南科技大学制造学院 西南科技大学制造学院 西南科技大学应用技术学院 西南科技大学应用技术学院
  • 收稿日期:2013-03-19 修回日期:2013-05-14 出版日期:2013-08-20 发布日期:2013-08-20
  • 通讯作者: 童聪

Motion Characteristics of the Particles in the Classification Chamber of a Classifier

TONG Cong LI Shuang-yue LI Xiang YANG Jun   

  1. College of Manufacturing Science and Engineering, Southwest University of Science and Technology College of Manufacturing Sci. and Eng., Southwest University of Science and Technology Applied Technology School,Southwest University of Science and Technolog Applied Technology School,Southwest University of Science and Technolog
  • Received:2013-03-19 Revised:2013-05-14 Online:2013-08-20 Published:2013-08-20
  • Contact: TONG Cong

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摘要： 在分析SLK5500型选粉机结构和分级机理的基础上，通过构建选粉机分级室模型，根据计算流体力学理论，运用DPM模型与非稳态算法求解颗粒运动轨迹，阐述了不同粒径的颗粒群在分级室内的运动特性. 考察了选粉机分级室内的流场速度分布，并捕捉颗粒计算了风量和转速对细粉颗粒产率和80 mm筛余的影响，模拟结果与实验结果基本相符，验证了模型的可靠性.

关键词: 选粉机, 分级室, 颗粒群, 运动特性

Abstract: Based on the analysis of structure and classification mechanism of SLK5500 classifier, its classification chamber model is built. According to the computational fluid dynamics, discrete particle model is used to simulate trajectory of particles with unsteady method. Motion characteristics of the particles in the classification chamber are shown, and velocity distribution of the classification chamber is studied. According to the particles trapping computation, the effects of air volume and rotator speed on fine particles productivity and 80 mm residue are obtained, and the simulation method is verified, its results agree with experimental results.

Key words: classifier, classification chamber, particles, motion characteristics

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