Abstract：Both coke and anthracite can be used as sintering fuels in the sintering process, the cost performance of anthracite C is almost double that of C of coke due to price factor, which is conducive to economic sintering. Under the condition of raw material and fuel in Panzhihua Steel Vanadium Co., the system test of fuel structure and proportion was carried out and the test results were comprehensively evaluated. Laboratory tests have shown that "25% coke + 75% coal" had the best overall effect, and the "50% coke +50% coal" was the second, but the ratio of these two structures was better than the use of coke or coal alone. The industrial test showed that the comprehensive effect of "15% Coke +85% Coal" was the best, and the "85% Coke +15% Coal" was the second, the two collocation was better than the use of Coke alone. The test found that the synthetical effect of using coal alone was better than using coke alone, the minerals composition and structure and metallurgical properties of sinter were basically unaffected. After excluding the influence factors of a slightly higher ratio of coal and high gangue content, the obvious economy was still reflected, and the comprehensive effect was not affected. Laboratory flue gas component detection showed that the use of coke or coal alone or both matching, with the change of sintering time, its exhaust gas O2, CO, CO2 content curve shape was highly similar, showing the fuel structure and ratio on the sintering process combustion and action mechanism was same or different little, the difference was that the content of exhaust gas composition had a certain difference but not much, The ratio of combustion efficiency and utilization rate φ(CO)/[φ(CO)+φ(CO2)] was similar or had little difference, which indicated that coke and coal can be used interchangeably or in combination to achieve the purpose of economical use of coal.
蒋大均. 燃料结构对烧结性能及综合效果的影响[J]. 钢铁, 2020, 55(2): 31-41.
JIANG Da-jun. Influence of fuel structure on sintering character and comprehensive effect. Iron and Steel, 2020, 55(2): 31-41.
[1] 蒋大军,何木光,宋剑,等.燃料粒度对烧结性能影响的试验研究[J].钢铁研究,2016,44(4):1.(JIANG Da-jun,HE Mu-guang,et al. Experimental research on fuel particle size influence on sintering performance[J]. Research on Iron and Steel,2016, 44(4):1.) [2] 蒋大军,杜斯宏,何木光,等.兰炭用作燃料对烧结性能影响的试验研究[J].冶金能源,2017,36(6):16.(JIANG Da-jun,DU Si-hong, HE Mu-guang,et al. Experimental research on sintering performance influence of blue carbon as a new type of fuel[J]. Energy for Metallurgical Industry,2017, 36(6):16.) [3] 贵永亮,刘连继,肖洪,等.铁矿石烧结过程中固体燃料种类的优化[J].矿产综合利用, 2014(2):29.(GUI Yong-liang, LIU Lian-ji,XIAO Hong,et al.Optimization of solid fuel type in iron ore sintering process[J]. Multipurpose Utilization of Mineral Resources,2014(2):29.) [4] 周清林,张铁梁.韶钢烧结固体燃料粒度及结构优化技术研究[J].南方金属,2017(2):21.(ZHOU Qing-lin, ZHANG Tie-liang.Research of solid fuel granularity for sintering and structure optimization in SGIS[J]. Southern Metals,2017(2): 21.) [5] 李荣玲,杨永强,黄晓东,等.不同外粉结构和燃料条件对烧结指标影响的试验研究[C]//2012年全国炼铁生产技术会议暨炼铁学术年会文集(上).石家庄:河北金属学会,2012:354.(LI Rong-ling,YANG Yong-qiang,HUANG Xiao-dong,et al.Experimental study on the influence of different external ore powder structure and fuel conditions on sintering index[C]//National Production Technology Conference and Academic Annual Conference on Iron Making(Volume1). Shijiazhuang: Hebei Metal Society,2012:354. [6] 李利剑,高丙寅.用洗精煤作燃料的烧结生产[J].钢铁,1999,34(4):1.(LI Li-jian,GAO Bing-yin.Sinter production with washed coal as fuel instead of raw coal[J]. Iron and Steel, 1999,34(4):1.) [7] 李丙来,刘振林,刘继彬,等.烧结固体燃料粒度对烧结矿产质量试验研究影响[J].山东冶金,2013(6):21.(LI Bing-lai,LIU Zhen-lin,LIU Ji-bin, et al.Influence of solid fuel particle size in sintering on sinter yield and quality[J]. Shandong Metallurgy, 2013(6):21.) [8] 裴生谦.降低360 m2烧结机固体燃耗的实践[J].河北冶金,2012(7):16.(PEI Sheng-qian.Practice to reduce solid fuel consumption of 360 m2 sintering machine[J]. Hebei Metallurgy,2012 (7):16.) [9] 周明顺,韩淑峰.铁矿石烧结焦粉粒度组成最佳化研究[J].鞍钢技术,2015(3):1.(ZHOU Ming-shun,HAN Shu-feng.Study on optimization of particle-size composition of coke breeze for sintering iron ore[J]. Angang Technology, 2015(3):1.) [10] 蒋大均,宋剑,何木光, 等. 攀钢集团攀枝花钢钒有限公司.铁矿石低炭烧结方法[P].中国:CN201410674368.6.2014-11-21.(JIANG Da-jun, SONG Jian,HE Mu-guang, et al. Panzhihua Steel and Vanadium Co., Ltd. of Pansteel Group. Low Carbon Sintering Method of Iron Ore[P].China: CN201410674368.6.2014-11-21.) [11] 蒋大均,何木光,谢俊勇,等. 攀钢集团攀枝花钢钒有限公司.铁矿石烧结燃料分加方法[P].中国:CN200910136016.4.2019-11-23.(JIANG Da-jun, HE Mu-guang, XIE Jun-yong, et al. Panzhihua Steel and Vanadium Co., Ltd. of Pansteel Group. Fuel Dividing Addition Method on Iron Ore Sintering[P]. China:CN200910136016.4.2019-11-23.) [12] 潘鹤,刘振林,杨金福,等.近年来济钢炼铁系统的技术进步[J].烧结球团,2011,36(6):5. (PAN He,LIU Zhen-lin,YANG Jin-fu,et al.Technology advancement of iron-making system in Jisteel during recent years[J]. Sintering and Pelletizing,2011, 36(6):5.) [13] 胡小清,肖炸和,王毅,等.方大特钢烧结固体燃料及熔剂经济运行评价[C]//第十届中国钢铁年会暨第六届宝钢学术年会论文集.上海:中国金属学会,2015:4.(HU Xiao-qing,XIAO Zha-he,WANG Yi,et al. Evaluation on the economic operation of sintering solid fuel and flux in Fangda special steel Co[C]//Proceedings of the 10th China Steel Annual Conference and the 6th Baosteel Academic Annual Conference. Shanghai: China Metals Society, 2015:4.) [14] 张俊,郭兴敏,张金福,等. 烧结原料对燃料燃烧的影响研究[J].钢铁,2010,45(11):12. (ZHANG Jun,GUO Xing-min, ZHANG Jin-fu,et al. Study for influence of sintering materials on fuel combustion[J]. Iron and Steel, 2010, 45(11):12.) [15] 吴胜利,陈东峰,赵成显,等. 提高厚料层烧结燃料燃烧性的试验研究[J].钢铁,2010,45(11):16. (WU Sheng-li, CHEN Dong-feng,ZHAO Cheng-xian,et al. Study on improving combustion of solid fuel in deep bed sintering[J]. Iron and Steel, 2010,45(11):16.) [16] 周明顺,赵东明,李建军,等. 焦粉粒度分布对铁矿石烧结指标的影响[J].中国冶金, 2018,28(2):11. (ZHOU Ming-shun, ZHAO Dong-ming, LI Jian-jun,et al. Effects of size distribution of coke breeze on sintering process[J]. China Metallurgy, 2018, 28(2): 11.) [17] 沈文俊.焦粉与无烟煤对烧结生产的影响[J].武钢技术,2014,52(3):22. (SHEN Wen-jun. Effect of coke and anthracite on sintering producing[J]. WISCO Technology,2014, 52(3):22.) [18] 普欣荣.焦末和无烟煤在红钢260 m2烧结机上的使用情况对比分析[C]//2013年全国冶金能源环保生产技术会.本溪:中国金属学会,2013:738.(PU Xin-rong.Comparative analysis on use condition of coke Powder and anthracite in 260 m2 sintering machine in Hong Steel Co[C]//National Metallurgical Energy and Environmental Protection Production Technology Association. Benxi: China Metals Society, 2013:738.) [19] 郭勇文.用煤粉代替焦粉的烧结实践[J].冶金丛刊,2012(5):31.(GUO Yong-wen.Practices of sintering with anthracite powder instead of coke powder[J]. Metallurgical Collections, 2012(5):31.) [20] 李建中,潘建磊.承德建龙烧结焦改煤降低燃料成本生产实践[J].炼铁技术通讯,2010(3):10. (LI Jian-zhong,PAN Jian-lei. Sintering coke replacing with anthracite for decresing fuel cost production practice in Chengde Jianlong Steel Co[J]. Iron Making Technology Journal, 2010(3):10.) [21] 王伟明,曾裕.宝钢集团一钢公司采用“以煤代焦”烧结生产新工艺[N].世界金属导报,2001-11-27.(WANG Wei- ming,ZEN Yu. A sintering production new technology on replacing coke with anthracite in No.1 steel company of Baosteel Group[N]. World Metal Herald,2001-11-27.) [22] 杨双平,郭拴全,张攀辉,等.兰炭作烧结燃料对烧结矿冶金性能的影响[J].钢铁,2016,51(9):16.(YANG Shuang-ping,GUO Shuan-quan,ZHANG Pan-hui,et al. Influence of semi-coke used as sintering fuel on metallurgical properties of sinter[J]. Iron and Steel.2016, 51(9):16.) [23] 张华,张建良,徐润生,等.兰炭与烟煤混合燃烧特性及机制分析[J].中国冶金, 2016,26(2):7. (ZHANG Hua, ZHANG Jian-liang,XU Run-sheng,et al. Combustion characteristics and mechanism analysis of blended coal of semi coke and bituminous coal[J]. China Metallurgy, 2016, 26(2): 7.) [24] 程志龙,杨剑,周浪,等.铁矿烧结中木炭及燃气替代焦粉的研究[J].工程热物理学报,2017,38(1):188.(CHENG Zhi-Long, YANG Jian,ZHOU Lang,et al.Study on replacement of coke with charcoal and methane in iron-ore sintering[J]. Journal of Engineering Thermophysics, 2017, 38(1): 188.) [25] 景妮洁,祝红梅,李和平.不同灰化温度下生物质混煤灰的烧结特性研究[J].燃料化学学报,2017,45(3):289.(JING Ni-jie,ZHU Hong-mei,LI He-ping.Effect of different ashing temperatures on the sintering characteristics of ash from combustion of coal and biomass blends[J]. Journal of Fuel Chemistry and Technology, 2017, 45(3): 289.) [26] Liming Lu, Matt Adam, Matt Kilburn, et al. Substitution of charcoal for coke breeze in iron ore sintering[J].ISIJ International,2013, 53(9):1607. [27] Nobuyuki Oyama, Yuji Iwami, Satoshi Machida, et al.Reduction of CO2 emissions with gas fuel injection technology in the sintering machines[J]. World Iron and Steel,2013, 13(1):16. [28] Roy R Lovel, Keith R Vining, Mark Dell 'amico.The influence of fuel reactivity on iron ore sintering[J].ISIJ International,2009,49(2): 195. [29] Won Yang, Changkook Ryu, Sangmin Choi,et al.Modeling of combustion and heat transfer in an iron ore sintering bed with considerations of multiple solid phases[J]. ISIJ International, 2004,44(3): 492. [30] Hou P, Choi S, Choi E,et al.Improved distribution of fuel particles in iron ore sintering process[J]. Ironmaking and Steelmaking, 2011, 38(5):379. [31] Won Yang, Sangmin Choi, Eung Soo Choi, et al. Combustion characteristics in an iron ore sintering bed—evaluation of fuel substitution[J].Combustion and Flame, 2006, 145(3):447. [32] Kenji Murakami, Katsuyasu Sugawara, Takazo Kawaguchi.Analysis of combustion rate of various carbon materials for iron ore sintering process[J].ISIJ International,2013, 53(9): 1580. [33] 胡永红,贺思辉.综合评价方法[M].北京:科学技术出版社,2000.(HU Yong-hong,HE Si-hui. Comprehensive Evaluation Method[M]. Beijing: Science and Technology Press,2000.)
2020, Vol. 55 
