Dynamic modeling and analysis of the closed-circuit grinding-classification process

Yunfei Chu; Wenli Xu; Weihan Wan

Volume 12 Issue 2

Apr. 2005

Turn off MathJax

Article Contents

Abstract

International Journal of Minerals, Metallurgy and Materials > 2005 > 12(2): 111-115.

Yunfei Chu, Wenli Xu, and Weihan Wan, Dynamic modeling and analysis of the closed-circuit grinding-classification process, J. Univ. Sci. Technol. Beijing , 12(2005), No. 2, pp.111-115.

Cite this article as:

Yunfei Chu, Wenli Xu, and Weihan Wan, Dynamic modeling and analysis of the closed-circuit grinding-classification process, J. Univ. Sci. Technol. Beijing , 12(2005), No. 2, pp.111-115.

Cite this article as:

Yunfei Chu, Wenli Xu, and Weihan Wan, Dynamic modeling and analysis of the closed-circuit grinding-classification process, J. Univ. Sci. Technol. Beijing , 12(2005), No. 2, pp.111-115.

PDF (438 KB)

Mineral

Dynamic modeling and analysis of the closed-circuit grinding-classification process

Yunfei Chu^1), ,,
Wenli Xu¹⁾ and
Weihan Wan²⁾

Author Affilications

Department of Automation, Tsinghua University. Beijing 100084. China
Jinchuan Nonferrous Metal Group Co., Jinchang 737100. China

Funds:

This work was financially supported by the National Key Science-Technology Project during the Tenth Five-Year-Plan period of China under Grant No.2001BA609A and No.2004BA615A.

Received: 23 September 2004; Available Online: 17 June 2021

Graphical Abstract

Abstract

Abstract

Mathematical models of the grinding process are the basis of analysis, simulation and control. Most existent models including theoretical models and identification models are, however, inconvenient for direct analysis. In addition, many models pay much attention to the local details in the closed-circuit grinding process while overlooking the systematic behavior of the process as a whole. From the systematic perspective, the dynamic behavior of the whole closed-circuit grinding-classification process is considered and a first-order transfer function model describing the dynamic relation between the raw material and the product is established. The model proves that the time constant of the closed-circuit process is lager than that of the open-circuit process and reveals how physical parameters affect the process dynamic behavior. These are very helpful to understand, design and control the closed-circuit grinding-classification process.

FullText(HTML)

References (0)

[1]	Hai-peng Wang, Jing Zhao, Wen Liang, Yuan Mei, Babak Houdeh, Yuan Tian. A new route of ferric ions rejection in a synthetic nickel leach solution [J]. International Journal of Minerals, Metallurgy and Materials, 2010, 17(3): 257-261. DOI: 10.1007/s12613-010-0302-z
[2]	Ming-ji Huang, Xiu-ping Dong, Guo-quan Liu. 3D Modeling of the preparation process of metal rubber material [J]. International Journal of Minerals, Metallurgy and Materials, 2010, 17(1): 75-79. DOI: 10.1007/s12613-010-0113-2
[3]	Liang-liang Guo, Yong Tian, Man Yao, Hou-fa Shen. Temperature distribution and dynamic control of secondary cooling in slab continuous casting [J]. International Journal of Minerals, Metallurgy and Materials, 2009, 16(6): 626-631. DOI: 10.1016/S1674-4799(10)60003-9
[4]	Ling Zhang, Wangyue Yang, Zuqing Sun. Modeling of microstructural evolution during dynamic recrystallization in coarse Nb microalloyed austenite [J]. International Journal of Minerals, Metallurgy and Materials, 2007, 14(2): 130-135. DOI: 10.1016/S1005-8850(07)60026-7
[5]	Lequan Min, Xisong Dong. Research on viral dynamic models of hepatitis B virus infection [J]. International Journal of Minerals, Metallurgy and Materials, 2004, 11(6): 572-576.
[6]	Li Peng, Qing Li, Wen Li, Shufen Li. NN adaptive pole placement method for sintering finish point control [J]. International Journal of Minerals, Metallurgy and Materials, 2004, 11(5): 477-479.
[7]	Hongming Wang, Guirong Li, Junjie Wang. Heat-transfer model on the improvement of continuous casting slab temperature [J]. International Journal of Minerals, Metallurgy and Materials, 2004, 11(1): 18-22.
[8]	Huanming Chen, Benfu Hu, Yiwen Zhang, Quanmao Yu, Huiying Li. Numerical analysis on solidification process and heat transfer of FGH95 superalloy droplets during PREP [J]. International Journal of Minerals, Metallurgy and Materials, 2003, 10(5): 53-58.
[9]	Sheng Ling, Yunqiu Han, Jiang, Liu. Dynamic response to road roughness on a tractor-semitrailer system with driver body model [J]. International Journal of Minerals, Metallurgy and Materials, 2002, 9(4): 305-310.
[10]	Ping Wu, Li Wang, Xu Feng, Xuezi Ni. Surface-particle-emulsion heat transfer model between fluidized bed and horizontal immersed tube [J]. International Journal of Minerals, Metallurgy and Materials, 2002, 9(2): 99-103.