Study on Fractal Mathematical Models of Pulverizing Theory for Ore

作者: Yunchuan Yang , Liang Wang , Yan Feng

DOI: 10.1016/J.POWTEC.2015.10.050

关键词:

摘要: Abstract Fractal dimension is an important parameter to characterize size distribution and shape features of particles. However, it still remains unclear whether the fractal dimensions measured with different methods for same particles will have identical results, or similar quantitative relationship exists between D 3 2 1 as stated in product–sum theorem. Silicon dioxide potassium feldspar were selected PDS measurements 2DSPI extractions this paper. By introducing concept size, , are defined a unified way, their relationships obtained under assumptions including The two fractional mathematical models three new algorithms power spectrum method presented paper provide solutions problems encountered measurement dimensions. Gauss–Newton iterative R–R superior existing fitted method. four been verified both experimentally by computational models. results show that among rational valid.

参考文章(23)
P. Rosin, The Laws Governing the Fineness of Powdered Coal J. Inst. Fuel.. ,vol. 7, pp. 29- 36 ,(1933)
Zhengbiao Peng, Elham Doroodchi, Geoffrey Evans, DEM simulation of aggregation of suspended nanoparticles Powder Technology. ,vol. 204, pp. 91- 102 ,(2010) , 10.1016/J.POWTEC.2010.07.023
Alireza Kashani, Rackel San Nicolas, Greg G. Qiao, Jannie S.J. van Deventer, John L. Provis, Modelling the yield stress of ternary cement–slag–fly ash pastes based on particle size distribution Powder Technology. ,vol. 266, pp. 203- 209 ,(2014) , 10.1016/J.POWTEC.2014.06.041
G. Dobrescu, F. Papa, R. State, I. Fangli, I. Balint, Particle size distribution of Pt–Cu bimetallic nanoparticles by fractal analysis Powder Technology. ,vol. 269, pp. 532- 540 ,(2015) , 10.1016/J.POWTEC.2014.08.017
Tao Li, Zhe Zhu, Dongsheng Wang, Chonghua Yao, Hongxiao Tang, Characterization of floc size, strength and structure under various coagulation mechanisms Powder Technology. ,vol. 168, pp. 104- 110 ,(2006) , 10.1016/J.POWTEC.2006.07.003
H.P. Tang, J.Z. Wang, J.L. Zhu, Q.B. Ao, J.Y. Wang, B.J. Yang, Y.N. Li, Fractal dimension of pore-structure of porous metal materials made by stainless steel powder Powder Technology. ,vol. 217, pp. 383- 387 ,(2012) , 10.1016/J.POWTEC.2011.10.053
Bruce E. Logan, Environmental Transport Processes ,(1998)