2022-Sustainable Industrial Processing Summit
SIPS2022 Volume 11 Poveromo Intl. Symp. Advanced Iron & Steel Making and Production of Ferro-alloys
| Editors: | F. Kongoli, G.Brooks, P. Butterworth, M. Geerdes, Y. Gordon, M. Grant, L. Lu, D. Lu, K. Saito, H. Sohn, T. Usui. |
| Publisher: | Flogen Star OUTREACH |
| Publication date: | 22 December 2022 |
| Pages: | 276 pages |
| ISBN: | 978-1-989820-54-4(CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Production and application of low silica self-fluxed pellets in Shougang Jingtang
Gele Qing1; Minge Zhao2; Gang An3; Kai Wang3; Zhixing Zhao1;1SHOUGANG RESEARCH INSTITUTE OF TECHNOLOGY, Beijing, China; 2SHOUGANG GROUP CO., LTD, Beijing, China; 3SHOUGANG JINGTANG UNITED IRON & STEEL CO., LTD, Tangshan, China;
Type of Paper: Regular
Id Paper: 90
Topic: 2
Abstract:
In order to reduce the fuel rate of blast furnace and promote green development, Shougang Jingtang Steel company has built two straight grate indurating machines with productivity of 8 million tons of pellets. In this paper, the production technologies of self-fluxed pellets with hydrated lime were studied successfully on the indurating machine. Hydrated lime has a good binder property, decrease the amount of bentonite and obtain low silica pellet. The basicity of pellet is 1.15 and SiO2 content is 2.0%. The low silica self-fluxed pellets were used in the three large blast furnaces with 5500m3 in Shougang Jingtang, the proportion of pellets in burden was increased from 28% to 55%, slag rate of blast furance was decreased from 280kg/tHM to 215kg/tHM, the fuel rate was decreased from 500kg/tHM to 480kg/tHM.