Abstract:In order to improve the dry granulation effect of blast furnace slag,and determine an appropriate granulation process,the characteristics and mechanism of different granulation methods were compared by means of dry granulation tests of the blast furnace slag. The results show that the form of granulated slag particles changes to needle-like and filamentous with the increasing of the air flow rate,and the traditional air-blow quenching technique cannot obtain the ideal granulation particles in size and form. In addition,adopting the air-water mixing quenching method can improve the granulation effect under a relatively small air volume,and the filamentous slag can be avoided,which can be regarded as the development direction of the air-blow quenching method. The mechanical granulation effect is better than that of air-blow quenching,and the optimal granulation as well as vitrification effect can be obtained in the combination of mechanical and air-blow quenching granulation.
张俊, 严定鎏, 万新宇, 高建军. 高炉渣不同干法粒化工艺的对比试验[J]. 钢铁, 2020, 55(2): 139-143.
ZHANG Jun, YAN Ding-liu, WAN Xin-yu, GAO Jian-jun. Comparative test on different dry granulation methods of blast furnace slag. Iron and Steel, 2020, 55(2): 139-143.
[1] 周扬民,罗思义,李宗刚,等. 液态高炉渣分裂破碎模式与控制技术[J]. 冶金能源,2013,32(5):52.(ZHOU Yang-min,LUO Si-yi,LI Zong-gang,et al. Fragmentation model of liquid blast furnace slag and corresponding control technology[J]. Energy for Metallurgical Industry,2013,32(5):52.)
[2] 杜滨,张衍国. 转盘离心粒化液态高炉渣实验研究[J]. 冶金能源,2013,32(4):29.(DU Bin,ZHANG Yan-guo. Centrifugal granulation experimental study of molten blast furnace slag by rotary disk[J]. Energy for Metallurgical Industry,2013,32(4):29.)
[3] 戴晓天,齐渊洪,张春霞,等. 高炉渣急冷干式粒化处理工艺分析[J]. 钢铁研究学报,2007,19(5):14.(DAI Xiao-tian,QI Yuan-hong,ZHANG Chun-xia,et al. Analysis of blast furnace slag quenching dry granulation process[J]. Journal of Iron and Steel Research,2007,19(5):14.)
[4] 李大鹏. 国内外高炉渣干法粒化技术进展分析[J].冶金设备,2015(1):44.(LI Da-peng. Progress on dry granulation technologies for blast furnace slag at home and abroad[J]. Metallurgical Equipment,2015(1):44.)
[5] Kappes H,Michels D. Dry slag granulation with energy recovery:Pilot campaign at ROGESA[C]//AISTech 2014-Proceedings of the Iron and Steel Technology Conference. Luxembourg:Paul Wurth S A,2014:93.
[6] Pickering S J,Hay N,Roylanae T F,et al.New process for dry granulation and heat recovery from molten blast furnace slag[J]. Ironmaking and Steelmaking,1985,12(1):14.
[7] 徐永通,丁毅,蔡漳平,等. 高炉熔渣干式显热回收技术研究进展[J]. 中国冶金,2007,17(9):1.(XU Yong-tong,DING Yi,CAI Zhang-ping,et al. Development of heat recovery from blast furnace slag using dry granulation methods[J]. China Metallurgy,2007,17(9):1.)
[8] 于庆波,刘军祥,窦晨曦,等. 转杯法高炉渣粒化实验研究[J]. 东北大学学报:自然科学版,2009,30(8):1163.(YU Qing-bo,LIU Jun-xiang,DOU Chen-xi,et al. Dry granulation experimental of blast furnace slag by rotary cup atomizer[J]. Journal of Northeastern University:Natural Science,2009,30(8):1163.)
[9] 李雪琴,潘飞飞,贺文超,等. 硅铁合金离心粒化工艺[J]. 中国冶金,2018,28(9):77. (LI Xue-qin,PAN Fei-fei,HE Wen-chao,et al. Centrifugal granulation process for ferrosilicon alloy[J]. China Metallurgy,2018,28(9):77.)
[10] 张华,倪红卫,李先旺,等. 高炉渣干式离心粒化实验研究[J]. 冶金能源,2012,31(5):15.(ZHANG Hua,NI Hong-wei,LI Xian-wang,et al. Experimental study of dry centrifugal granulation for blast furnace slag[J].Metallurgy Energy,2012,31(5):15.)
[11] 闰兆民,周扬民,杨志远,等. 高炉渣干式平盘粒化实验研究[J]. 冶金能源,2010,29(3):44. (YAN Zhao-min,ZHOU Yang-min,YANG Zhi-yuan,et al. Experimental study of plates dry granulation of BF slag[J]. Metallurgy Eergy,2010,29(3):44.)
[12] Yoshiaki Kashiwaya,Yutaro In-Nami,Tomohiro Akiyama. Development of a rotary cylinder atomizing method of slag for the production of amorphous slag particles[J]. ISIJ International,2010,50(9):1245.
[13] 毛艳丽,曲余玲,王涿. 高炉熔渣处理及显热回收工艺的研究进展[J]. 上海金属,2013,35(3):45.(MAO Yan-li,QU Yu-ling,WANG Zhuo. Review of blast furnace molten slag treatment and sensible heat recovery technologies[J]. Shanghai Metals,2013,35(3):45.)
[14] 杨文策,赵增武,李永治. 高炉渣滚筒法处理过程的模拟实验研究[J]. 铸造技术,2017,38(6):1385. (YANG Wen-ce,ZHAO Zeng-wu,LI Yong-zhi. Simulation of rotating drum process for blast furnace slag[J]. Foundry Technology,2017,38(6):1385.)
[15] 林斌. 熔融高温高炉渣冷却过程相变研究[D]. 重庆:重庆大学,2016.(LIN Bin. Research on Phase Change of High Temperature Blast Furnace Slag during Cooling Process[D]. Chongqing:Chongqing University,2016.)
[16] 于明志,常浩,胡爱娟,等. 高炉熔渣喷射粒化方法及模拟试验研究[J]. 应用基础与工程科学学报,2015,23(4):836.(YU Ming-zhi,CHANG Hao,HU Ai-juan,et al. Simulation experimental study on granulating molten blast furnace slag by Nozzel Jetting[J]. Journal of Basic Science and Engineering,2015,23(4):836.)
[17] 王子兵,刘跃,张玉柱,等. 高炉熔渣气淬粒化热量回收试验研究[J]. 钢铁钒钛,2018,39(4):93.(WANG Zi-bing,LIU Yue,ZHANG Yu-zhu,et al. Experimental study on heat recovery of the process of gas blowing for blast furnace slag[J]. Iron Steel Vanadium Titanium,2018,39(4):93.)