Study of raceway in COREX melter gasifier by using three progressive methods

Jun-jie Sun, Zhiguo Luo, Zhan-xia Di, Chong-lin Liu, Zongshu Zou, Yansong Shen

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review


Definition of raceway shape and size has always been a challenging task. In this study, based on physical simulation of the COREX melter gasifier, the pictures near the raceway zone are recorded by a high speed camera and the particles velocity contours are analyzed. Then three progressive methods are developed to describe the raceway size under different blowing rates. In the first method, the raceway depth and height are determined qualitatively through judging the particles velocity contours; In the second method, the fractal dimensions of different particles velocity contours are obtained by using fractal theory, then the two-dimension raceway depth and height are defined through analyzing the fractal dimensions; In the third method, the surface area of three-dimension ellipsoidal raceway is obtained by using the law of additive codimensions and the fractal dimensions which are from the second method. Due to the same data is used by the three methods, different raceway sizes are obtained, but the general trend is similar and the raceway size from all methods increase with the increasing of blowing rate
Original languageEnglish
Title of host publication7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013
EditorsAibing Yu, Kejun Dong, Runyu Yang, Stefan Luding
Place of PublicationMelville NY USA
PublisherAmerican Institute of Physics
Pages1158 - 1161
Number of pages4
ISBN (Print)9780735411661
Publication statusPublished - 2013
Externally publishedYes
EventPowders and Grains 2013 - Sydney, Australia
Duration: 8 Jul 201312 Jul 2013
Conference number: 7th


ConferencePowders and Grains 2013
Internet address

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