Study on high temperature properties and optimal ore blending of Pangang iron ore powder

Hu Peng; Tang Wenbo; Huang Chu; Rao Jiating; Yang Mingrui

doi:10.7513/j.issn.1004-7638.2022.03.019

Volume 43 Issue 3

Jun. 2022

Turn off MathJax

Article Contents

Article Navigation > IRON STEEL VANADIUM TITANIUM > 2022 > 43(3): 118-124

Hu Peng, Tang Wenbo, Huang Chu, Rao Jiating, Yang Mingrui. Study on high temperature properties and optimal ore blending of Pangang iron ore powder[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(3): 118-124. doi: 10.7513/j.issn.1004-7638.2022.03.019

Citation:

Hu Peng, Tang Wenbo, Huang Chu, Rao Jiating, Yang Mingrui. Study on high temperature properties and optimal ore blending of Pangang iron ore powder[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(3): 118-124. doi: 10.7513/j.issn.1004-7638.2022.03.019

Citation:

PDF( 1474 KB)

Study on high temperature properties and optimal ore blending of Pangang iron ore powder

doi: 10.7513/j.issn.1004-7638.2022.03.019

1.
Panzhihua Iron and Steel Research Institute Co., Ltd., Pangang Group,State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China
2.
Pangang Group Xichang Steel & Vanadium Co., Ltd., Xichang 615000, Sichuan, China

Received Date: 2022-02-25
Publish Date: 2022-06-30

Abstract

Abstract

The results from micro sintering test on high temperature properties of Pangang iron ore power show that the assimilation temperature of high V-Ti magnetite used in Pangang exceeds 1 320 ℃, while the liquid phase fluidity index is only 0.1 and the bonding phase strength is greater than 3 500 N. It is necessary to improve the performance of sinter blending by optimizing ore blending. Therefore, the ore blending was optimized based on high temperature performance, and the sintering verification tests had been conducted. It is found out that the content of TiO₂ has a great influence on the high temperature sintering properties of iron ore powder. When TiO₂ content decreases from 7.0% down to 3.0%, the assimilation temperature of mixed ore decreases from 1 305 ℃ to 1 280 ℃, the liquid phase fluidity index is increased from 0.42 to 0.78, and the bonding phase strength decreases from 2 640 N to 1 915 N. The sinter yield, drum strength, and medium and low temperature properties are significantly improved. During the sintering process, the calcium titanium mineral phase with dense structure and high melting point formed by the reaction of TiO₂ and CaO decreases, and the calcium ferrite phase increases.
- vanadium-bearing titanomagnetite,
- sinter,
- ore blending,
- high temperature properties

FullText(HTML)

References(10)

References

[1]	Wu Shengli, Liu Yu, Du Jianxin, et al. A new concept of basic sintering characteristics of iron ore[J]. Journal of University of Science and Technology Beijing, 2005,24(3):254−257. (吴胜利, 刘宇, 杜建新, 等. 铁矿石的烧结基础特性之新概论[J]. 北京科技大学学报, 2005,24(3):254−257. Wu Shengli, Li Yu, Du Jianxin et al. A new concept of basic sintering characteristics of iron ore[J]. Journal of University of Science and Technology Beijing, 2005, 24(3): 254-257.
[2]	Hu Peng, Rao Jiating, Fu Weiguo, et al. Effect of SiO₂ and CaO content on the high-titanium V-Ti sinters performance[J]. Sintering and Pelletizing, 2017,42(3):16−20. (胡鹏, 饶家庭, 付卫国, 等. 高钛型钒钛烧结矿不同硅钙水平研究[J]. 烧结球团, 2017,42(3):16−20. Hu Peng, Rao Jiating, Fu Weiguo, et al. Effect of SiO2 and CaO content on the high-titanium V-Ti sinters performance[J]. Sintering and Pelletizing, 2017, 42(3): 16-20.
[3]	Yan Bingji, Zhang Jianliang, Yao Zhaoquan, et al. Ore-blending optimization model based on liquid phase formation characteristics of iron ore fines[J]. Iron and Steel, 2015,50(6):40−45. (闫炳基, 张建良, 姚朝权, 等. 基于铁矿粉液相生成特性互补优化配料模型[J]. 钢铁, 2015,50(6):40−45. Yan Bingji, Zhang Jianliang YaoZhaoquan, et al. Ore-blending optimization model based on liquid phase formation characteristics of iron ore fines[J]. Iron and Steel, 2015, 50(6): 40-45.
[4]	Liu Song, Li Fumin, Lv Qing. Basic sintering characteristics of low titanium mixed iron ore[J]. Iron Steel Vanadium Titanium, 2015,36(50):74−78. (刘颂, 李福民, 吕庆. 低钛性混匀矿的烧结基础特性[J]. 钢铁钒钛, 2015,36(50):74−78. Liu Song, Li Fumin, Lv Qing. Basic sintering characteristics of low titanium mixed iron ore[J]. Iron Steel Vanadium TiTanium, 2015, 36(50): 74-78.
[5]	Wang Wenshan, Ren Gang, Lv Qing, et al. Study on optimization of Chengde vanadium-titanium magnetite sintering process[J]. Hebei Metallurcy, 2009,174:3−5. (王文山, 任刚, 吕庆, 等. 承钢钒钛粉的烧结基础性能研究[J]. 河北冶金, 2009,174:3−5. Wang Wenshan, Ren Gang, Lv Qing et al. Study on optimization of Chengde vanadium-titanium magnetite sintering process[J], Hebei Metallurcy, 2009, 174: 3-5.
[6]	Wu Shengli, Du Jianxin, Ma Hongbin, et al. Fluidity of liquid phase in iron ores during sintering[J]. Journal of University of Science and Technology Beijing, 2005,27(3):291−293. (吴胜利, 杜建新, 马洪斌, 等. 铁矿粉烧结液相流动特性[J]. 北京科技大学学报, 2005,27(3):291−293. doi: 10.3321/j.issn:1001-053X.2005.03.009 Wu Shengli, Ma Jianxin, Ma Hongbin et al. Fluidity of liquid phase in iron ores during sintering[J]. Journal of University of Science and Technology Beijing, 2005, 27(3): 291-293. doi: 10.3321/j.issn:1001-053X.2005.03.009
[7]	Lv Qing, Zhang Xusheng, Liu Xiaojie, et al. Influence of titanium on the basic characteristics of sinter[J]. Iron and Steel, 2015,50(5):13−18. (吕庆, 张旭升, 刘小杰, 等. 钛对烧结矿基础性能的影响[J]. 钢铁, 2015,50(5):13−18. Lv Qing, Zhang Xusheng, Liu Xiaojie, La Xiaoshuai. Influence of titanium on the basic characteristics of sinter[J]. Iron and Steel, 2015, 50(5): 13-18.
[8]	Liu Zimin, Wu Shengli, Jin Jun, et al. Study on optimizing the sintering proportioning in Masteel[J]. Sintering and Pelletizing, 2012,37(2):13−18. (刘自民, 吴胜利, 金俊, 等. 马钢烧结优化配矿技术的研究[J]. 烧结球团, 2012,37(2):13−18. doi: 10.3969/j.issn.1000-8764.2012.02.004 Liu Zhimin, Wu Shengli, Jin Jun et al. Study on optimizing the sintering proportioning in Masteel[J]. Sintering and Pelletizing, 2012, 37(2): 13-18. doi: 10.3969/j.issn.1000-8764.2012.02.004
[9]	Wang Zhe, Zhang Jianliang, Zuo Haibin, et al. Study on sintering proportioning optimization based on basic high temperature properties of iron ore fines[J]. Sintering and Pelletizing, 2013,38(3):1−4. (王喆, 张建良, 左海滨, 等. 基于铁矿粉高温基础性能的烧结配料优化研究[J]. 烧结球团, 2013,38(3):1−4. doi: 10.3969/j.issn.1000-8764.2013.03.001 Wang Zhe, Zhang Jianliang, Zuo Haibin et al. Study on sintering proportioning optimization based on basic high temperature properties of iron ore fines[J]. Sintering and Pelletizing, 2013, 38(3): 1-4. doi: 10.3969/j.issn.1000-8764.2013.03.001
[10]	Lin Wengkang, Hu Peng. Influence of TiO₂ content and basicity level on the metallogenic regularity of V-Ti sinter[J]. Iron Steel Vanadium Titanium, 2020,41(2):94−100. (林文康, 胡鹏. TiO₂含量和碱度水平对钒钛烧结矿成矿规律的影响研究[J]. 钢铁钒钛, 2020,41(2):94−100. doi: 10.7513/j.issn.1004-7638.2020.02.018 Lin Wengkang, Hu Peng. Influence of TiO2 content and basicity level on the metallogenic regularity of V-Ti sinter[J]. Iron Steel Vanadium Titanium, 2020, 41(2): 94-100. doi: 10.7513/j.issn.1004-7638.2020.02.018