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攀钢铁矿粉高温性能及优化配矿研究

胡鹏 唐文博 黄楚 饶家庭 杨明睿

胡鹏, 唐文博, 黄楚, 饶家庭, 杨明睿. 攀钢铁矿粉高温性能及优化配矿研究[J]. 钢铁钒钛, 2022, 43(3): 118-124. doi: 10.7513/j.issn.1004-7638.2022.03.019
引用本文: 胡鹏, 唐文博, 黄楚, 饶家庭, 杨明睿. 攀钢铁矿粉高温性能及优化配矿研究[J]. 钢铁钒钛, 2022, 43(3): 118-124. doi: 10.7513/j.issn.1004-7638.2022.03.019
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

攀钢铁矿粉高温性能及优化配矿研究

doi: 10.7513/j.issn.1004-7638.2022.03.019
详细信息
    作者简介:

    胡鹏(1988-),男,四川苍溪人,高级工程师,研究方向:钒钛矿造块及高炉冶炼, E-mail:hupeng526417@163.com

  • 中图分类号: TF046

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

  • 摘要: 通过微型烧结试验对攀钢铁矿粉高温性能进行了检测,结果表明攀钢所用高钛型钒钛磁铁矿同化温度达到1320 ℃以上,液相流动性指数仅0.1,粘结相强度大于3 500 N,需要通过优化配矿来改善烧结混匀矿性能。因此,根据高温性能进行了优化配矿,并开展了高温性能和烧结杯验证试验,结果表明:TiO2含量对铁矿粉烧结高温性能影响较大。随着TiO2含量从7.0%降低至3.0%时,混匀矿的同化温度从1305 ℃降低至1280 ℃,液相流动性指数从0.42提高至0.78,粘结相强度则从2 640 N降低至1 915 N,烧结矿成品率、转鼓强度和中低温性能显著提高,且烧结过程中TiO2与CaO反应生成的结构致密、熔点较高的钙钛矿物相减少,铁酸钙物相增加。
  • 图  1  铁矿粉同化温度测定试验示意

    Figure  1.  Schematic diagram of determination test on iron ore powder assimilation temperature

    图  2  铁矿粉液相流动性试验示意

    Figure  2.  Schematic diagram of iron ore powder liquid phase fluidity test

    图  3  铁矿粉粘结相强度试验示意

    Figure  3.  Schematic diagram of iron ore powder bond phase strength test

    图  4  铁矿粉同化性试验结果

    Figure  4.  Assimilation test results of iron ore powder

    图  5  铁矿粉的液相流动性指数

    Figure  5.  Liquid phase fluidity index of iron ore powder

    图  6  铁矿粉的粘结相强度

    Figure  6.  Bond phase strength of iron ore powder

    图  7  混匀矿同化温度和液相流动性指数随TiO2含量变化规律

    Figure  7.  Variation of assimilation temperature and liquid phase fluidity of mixed ore with TiO2 content

    图  8  混匀矿粘结相强度和综合得分随TiO2含量变化规律

    Figure  8.  Variation of bond phase strength and comprehensive score of mixed ore with TiO2 content

    图  9  不同配矿方案下烧结矿矿物形貌

    Figure  9.  Mineral morphology of sinters obtained from different ore blending schemes

    表  1  试验用原料化学成份和烧损

    Table  1.   Chemical compositions and burning loss of raw iron ore for test

    矿粉名称化学成分/%Ig/%
    TFeFeOCaOSiO2MgOAl2O3TiO2V2O5
    攀精矿53.9032.550.403.802.803.8012.250.56−1.36
    白马精矿56.3627.300.373.793.363.2810.510.71−1.50
    南非矿62.210.720.276.220.051.912.00
    国高粉59.6117.692.424.363.800.860.503.00
    中粉44.032.642.2920.821.625.330.300.044.32
    下载: 导出CSV

    表  2  铁矿粉配矿试验方案

    Table  2.   Iron ore powder blending test scheme

    配矿方案矿粉比例/%
    攀精矿南非矿国内高粉国内中粉
    JZ56102311
    S147.5103210.5
    S2391040.510.5
    S330.51049.510
    S4221058.59.5
    下载: 导出CSV

    表  3  混匀矿化学成分检测结果

    Table  3.   Chemical compositions of mixed ore

    配矿方案化学成分/%
    TFeSiO2CaOMgOAl2O3V2O5TiO2
    JZ54.966.041.062.633.100.327.00
    S155.526.011.232.722.830.276.01
    S256.016.061.402.812.580.225.01
    S356.576.021.582.902.310.174.01
    S457.135.991.753.002.040.133.00
    下载: 导出CSV

    表  4  烧结矿性能检测结果

    Table  4.   Sinter performance test results

    配矿方案成品率/%转鼓强度/%利用系数/[t·(m2·h)−1]RDI(+3.15 mm)/%RI/%
    JZ70.7552.601.44254.3786.77
    S175.9156.271.43755.9287.15
    S279.3558.271.36057.3987.72
    S385.7861.531.39161.8088.50
    S485.4363.131.62262.8090.87
    下载: 导出CSV

    表  5  典型烧结矿物相体积分数组成

    Table  5.   Volume fractions of typical sintered mineral phases

    矿物方案矿物组成/%
    钛赤铁矿钛磁铁矿铁酸钙钙钛矿镁铝尖晶石硅酸盐
    JZ18~2223~2719~237~110~222~26
    S218~2124~2725~305~90-220~23
    S416~2024~2828~322~60~216~20
    下载: 导出CSV
  • [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
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  • 收稿日期:  2022-02-25
  • 刊出日期:  2022-06-30

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