NEW ANALYSIS METHOD OF SINTER CAKE PORE STRUCTURE FOR PERMEABILITY EVALUATION

被引：27
|
作者：
KASAMA, S
INAZUMI, T
NAKAYASU, T
机构：
[1] KNIPPON STEEL CORP,PROC TECHNOL RES LABS,SHINTOMI 29912,JAPAN
[2] NIPPON STEEL CORP LTD,KIMITSU WORKS,KIMITSU 29911,JAPAN
来源：
ISIJ INTERNATIONAL | 1994年 / 34卷 / 07期
关键词：
IRON ORE SINTERING; X-RAY COMPUTERIZED TOMOGRAPHY; 3-DIMENSIONAL IMAGE; ANALYSIS OF SINTER CAKE; PORE STRUCTURE; NETWORK MODEL; EVALUATION OF PERMEABILITY;
D O I：
10.2355/isijinternational.34.562
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The pore structure of sinter cake was observed in three-dimensional manner by high energy X-ray computerized tomography. Most pores of 5 mm or more in two-dimensional size were stem pores linked with each other, forming complicated three-dimensional networks. A new analysis method employing X-ray computerized tomography has been developed for evaluating the sinter cake pore structure, based on a network model. This method has successfully made it possible to quantify the complexities of the pore structure. Applying this method to the analysis of sinter cakes having different permeabilities, the importance of not only porosity but also pore branch structure for the permeability was elucidated. Promoting the coalescence of iron ore particles to secure open pores (stem pores) improves the permeability of sinter cake because of producing an effectively permeable pore network.
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页码：562 / 569
页数：8
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