2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 6: Yagi Intl. Symp. / Metals & Alloys Processing
| Editors: | Kongoli F, Akiyama T, Nogami H, Saito K, Fujibayashi A |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 480 pages |
| ISBN: | 978-1-987820-46-1 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Burden distribution in the COREX shaft furnace with DEM simulation
Mingyin Kou1; Shengli Wu1;1UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing, China;
Type of Paper: Regular
Id Paper: 52
Topic: 3
Abstract:
Shaft furnace plays a very important role in the quantity and quality indexes of the COREX process. However, the model used to simulate burden distribution in the COREX shaft furnace can only simulate the single ring charging process, not the multi-ring charging process in practice. Therefore, a three-dimensional model of COREX shaft furnace is developed in this study based on discrete element method (DEM). The model simulates the charging process with four types of burdens together and then is used to investigate the effects of different charging matrix on the burden distribution. Results show that coke and flux roll away from the striking point, while ore segregates close to the striking point, and pellet always tends to move towards the central area. The base layer has a significant effect on burden stack profile, and the burden tends to accumulate in the center with the same ring number at each angle in the case of a flat base layer. The burden distribution is evener when the direction of charging is from inside to outside.