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31 6 Vol.31 No.6 2 0 0 01 2J. CENT. SOUTH UNIV. TECHNOL. Dec. 2 0 0 0 410083 [] 95015 min1 20015 min TFe 58.56TiO27.89,3 127 N/RI 70.8,RDI-3.15 7.29,SI 15.27, 1 0801 170FeO3 [] TF046 []A [1005-9792200006-0489-04 [1-5]. 2 [6]. -[7,8]. - - 1 - 1.1 - 1.1.1 1 2. 3. 1 w / TFe FeO TiO2 SiO2 CaO MgOAL2O3 S P S1 S2 S3 55.030 52.470 66.860 29.250 27.680 23.030 14.450 13.420 0 2.030 3.450 2.890 1.020 1.120 1.310 3.860 4.230 2.350 3.310 4.050 0.580 0.102 0.110 0.080 0.008 0.097 0.005 2 /mm 0.146-0.1460.112 -0.1120.074 -0.074-0.044 -0.0440 S1 S2 S3 0.200 0.360 0.040 2.240 3.130 0.260 23.020 26.460 10.420 16.800 18.680 18.660 57.560 51.370 70.440 [] 2000-07-04 [] [] 1964-, 万方数据 490 31 3 //g/100g/mLg-1 SB1 SB2 100 97.5 8.5 9.4 135 121 56 50 150 145 15 12 0.074mm 4 w / SiO2Al2O3 Na2OK2O CaO MgO Fe2O3 pH SB1 SB2 64.08 62.34 16.85 17.24 1.25 0.12 0.50 0.72 2.84 2.22 3.96 5.44 1.45 2.73 8.0 9.0 67 67 S1, 1 1 S2 S3 0.074 mm 75 1 400 1 500 cm2/g. [8]. 1.1.2 2 3 4. 1.2 800 mm 36 r/min, 45 150 mm. ZS-3 50 mm, 150 mm 0.8 m/s,200 300 30 min. 50 mm L-1000 - 25 mm/min, 60 N/ 2 4 1 3 950 950 1 000 - 1 000 1 000 [8], 950 2, 15 min 1 2 万方数据 6 491 3 15 min 31 1001 200 840 N/ 4 014 N/1 200 4 15 min 3 127 N/ 15 min 4 950 15 min1 20015 min. 5, TiO27.8911.26,3 1274 100 N/- 5 w/ TFe FeO CaO MgO SiO2 Al2O3 TiO2 S 53.17 2.0 0.99 3.76 2.93 3.26 11.2 0.029 58.56 1.67 1.12 2.98 3.34 2.07 7.89 0.02 63.96 1.26 1.25 2.15 3.32 0.78 0 0.026 N/4 1003 127 2868 -/ / -/ 66.7 22.79 7.63 70.8 15.27 7.29 73.53 12.48 8.95 / 1110 1 190 80 1 080 1 170 90 1 040 1 150 110 -RDI-3.15. 6 3 43 5 6 w / 57.5 69.8 83.1 2.6 3.6 1.9 18.6 14.2 3.0 21.3 12.4 12.0 - 万方数据 4 9 2 3 1 3 a. 95015 min1 20015 min TiO27.8911.26,3 127 4 100N/ - 66.770.8, b. FeO c. [] [1] [M]. 1994.51-118. [2] [A]. [C].1996,6 181-185. [3] [J].1997,164 10-13 [4] Boone A G, Jimenez G, CaotilloJ. Extending blast fumace campaign life[A]. Beech M. Advanced Technology Symposium[C]. South Caro- line, 1997. [5] Stohart D W, Chaykowski R D, et al. Hearth monitoring experiences at dofascos No.4 blast furnace[J]. Iron and Steelmaker, 1997, 2412 43-49. [6] [A]. [C]. 1996,6197-200. [7] Kordier J A, Lesur F, Grafeuille F. Burden design for the blast fur- nace, ed[A]. Lu W K. McMaster Symposium[C]. Quebec, 1984. 12. [8] [M]. 1996. Thermal hardening of acid titanium-bearing pellets to prolong campaign life of blast furnace ZHU De-qing ,PANG Ren-ren , JIANG Tao , GUO Yu-feng , YIANG Yongbin , QIU Guanzhou Department of Mineral Engineering, Central South University, Changsha 410083, China [ Abstract] An investigation into the process parameters and induration mechanism of thermal hardening for making acid titanium-bearing pellets were carried out. It has been revealed that under the conditions of preheating at 950 , roasting at 1 200 and durations of preheating and roasting respectively for 15 minutes, acid titanium-bearing oxide pellets as- saying total Fe 58.56 and TiO2 7.89 were manufactured successfully. The compressive strength reaches 3127 New- ton per pellet, their main metallurgical properties are as follows RI 70.8, RDI-3.15 7.29, swelling index 15. 27 , pellet softening temperature range from beginning to finish at 1 080 1 170 , all of which can meet the needs of protection and a charge for large and middle scale blast furnaces. Like that of ordinary pellets from magnetite concen- trates, the induration of titanium-bearing pellets depends on the recrystallization and solid phase diffusion of hematite. The making of the acid titanium-beating pellets is not only favorite to prolonging campaign life and modifying the burden structure of blast furnace, but also finds an effective way for utilization of vanadium titanomagnetite concentrate. [Key words] protection of blast furnace; vanadium-bearing titanomagnetite; oxidatively firing; ATB pelets; burden structure 万方数据 酸性护炉球团矿焙烧工艺及固结机理酸性护炉球团矿焙烧工艺及固结机理 作者朱德庆， 潘润润， 姜涛， 郭宇峰， 杨永斌， 邱冠周， ZHU De-qing， PANG Ren-ren， JIANG Tao， GUO Yu-feng， YIANG Yongbin， Qiu Guanzhou 作者单位中南大学矿物工程系，湖南 长沙 410083 刊名 中南工业大学学报自然科学版 英文刊名JOURNAL OF CENTRAL SOUTHUNIVERSITY OF TECHNOLOGY 年，卷期2000，316 引用次数1次 参考文献8条参考文献8条 1.宋建成 高炉含钛物料护炉技术 1994 2.王赣邻.J.T.Chao 钛铁矿在高炉中的应用延长高炉寿命的技术综述[会议论文] 1999 3.顾均南 高炉加入钛物料护炉方法探讨 19974 4.Boone A G.Jimenez G.CaotilloJ Extending blast fumace campaignlife 1997 5.Stohart D W.Chaykowski R D Hearth monitoring experiences at dofasco′s No.4 blast furnace 199712 6.翟兴华.胡慧丽 含钛物料护炉方法的探讨[会议论文] 1999 7.Kordier J A.Lesur F.Grafeuille F Burden design for the blast fur-nace, ed 1984 8.傅菊英.姜涛.朱德庆 烧结球团学 1996 相似文献0条相似文献0条 引证文献1条引证文献1条 1.龚瑞娟 球团矿焙烧与还原过程中的热强度研究[学位论文]硕士 2006 本文链接 下载时间2010年3月26日
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