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Study on Dispersed Distribution in Continuous Phase in Steelmaking Top-blown

Author: LiMeng
Tutor: ZouZongShu
School: Northeastern University
Course: Iron and steel metallurgy
Keywords: Top-blown Physical simulation Image processing Dispersed phase Continuous phase Distributed
CLC: TF701.3
Type: Master's thesis
Year: 2007
Downloads: 21
Quote: 0
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Abstract


For most of the metallurgical reaction system , regardless of the dispersed and continuous melt -and-white reaction rate and chemical kinetics , and depends on the number of physical processes . In order to accelerate the exchange of substances , often the dispersion system . To determine the reaction speed of such a system must determine the boundary area of the dispersed phase and the continuous phase of the reaction . But is difficult to get an accurate calculation of the reaction boundary area . This paper, based on similar theorem , the use of two - dimensional water model to a physical analog mixing and emulsification process of the top blow refining slag gold . With digital camera photography, image processing and calculated by the preparation of a computer program , applied probability and statistics theory of the particle size distribution of the dispersed phase were analyzed , and coordinate distribution were studied . In the top blow refining process , due to the turbulence generating part of the slag deposits dispersed phase is distributed in the form of small droplets in the continuous phase , the smaller the droplet , the greater the specific surface area , that is , the greater the reaction boundary area . This study is the first use of the probability density function of the theory of probability and statistics to describe the top blow refining process of steel droplets dispersed phase in the continuous phase changes in the distribution . Under the conditions of a top-blown steel drops of slag in a particle size distribution of the exponential function , using the description of this relationship can be the dispersed phase particle size distribution , and use of the characteristic value of the exponential function to analyze the effects of boundary conditions on the particle size distribution . Second, the dispersed phase of the dimensionless coordinate distribution may be used to describe the degree of homogeneity of its distribution in the continuous phase . And given the various operation conditions on the coordinate distribution of the empirical relationship . The results show that the theory of probability and statistics to the top blow refining slag gold mixed quantum chemical calculations provide an effective method .

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CLC: > Industrial Technology > Metallurgical Industry > Steelmaking > General issues > Theoretical and Computational > Analysis, test methods
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