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| Multifractal spectrum research of magnesia fluxing pellets |
| HAN Yang1，2，3 ， YANG Xiao-lei1，2 ， ZHANG Xin3， YANG Ai-min1，2， ZHANG Yu-zhu2，4 |
| （1. College of Science， North China University of Science and Technology， Tangshan 063210， Hebei， China；
2. Tangshan Key Laboratory of Engineering Computing， Tangshan 063210， Hebei， China； 3. Department of Discipline Construction， North China University of Science and Technology， Tangshan 063210， Hebei， China；
4. College of Metallurgy and Energy， North China University of Science and Technology，
Tangshan 063210， Hebei， China） |
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Abstract The microstructure of the pellet phase determines the physical and chemical properties of the pellet， which depends on the relationship between the pellet microstructure and its macroscopic metallurgy physical and chemical property. The key problem needs to be solved is the extraction and quantitative characterization of the microscopic visual characteristics of the ore phase. On the basis of the visual analysis of the visual characteristics of the ore phase， the quantitative characterization value f（α） of the micro multifractal spectrum of the mineral phase is extracted by the multi fractal spectrum analysis method， and the eigenvalues， symmetry degree Δf， spectral width eigenvalue Δα， and capacity， derived from f（α） are deeply excavated. The migration rules of the D（0） with the alkalinity and the location of the ore phase are measured. The results show that the color characteristics of the mineral facies in the HSV color space are not significantly different in the change of alkalinity and the change of the position. In the analysis of the microscopic multifractal spectrum of the mineral facies， the three characteristic values of Δf， Δα and D（0） have significant differences in the alkalinity variation and the position variation， which can characterize the regularity of the alkalinity migration and the law of location migration suitably.
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Received: 30 July 2018
Published: 15 February 2019
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2019, Vol. 54 
