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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A new testing and evaluating method of cokes with greatly varied CRI and CSR used in Blast Furnace
Qi Wang1;1, Anshan, China;
Type of Paper: Regular
Id Paper: 27
Topic: 3
Abstract:
The cokes with low reactivity index (CRI) and high coke strength after reaction (CSR) are generally regarded as good quality and acceptable for blast furnace (BF) operators. However, the cokes with greatly varied CRI and CSR can be used in large BF which can operate stably. Thus, it can be suggested that the CRI and CSR test should be disputed and distrusted. In this paper, various coke-quality parameters and measurement are proposed for a good understanding of cokes with greatly varied CRI and CSR. The developed coke-quality parameters are defined as an initial temperature of coke reaction (Ti), coke reaction rate at the coke weight loss of 25% (CRR25) and coke strength after reaction (CSR25) tested by not-isothermal to isothermal or isothermal experiment. The quality parameters of cokes explain why the cokes with higher CRI and lower CSR can be used in the blast furnace and ensure the BF operate stably.