太钢6号高炉碱金属的平衡与控制

doi:10.13228/j.boyuan.issn1006-9356.20200253

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1315 KB) HTML (0 KB)
输出: BibTeX | EndNote (RIS)

摘要针对太钢6号高炉入炉碱负荷及焦比升高的现状,通过对高炉原燃料及支出项的碱金属进行平衡计算,得出太钢高炉碱负荷主要来源于烧结矿,而绝大部分碱金属经炉渣排出炉外。为减少高炉碱负荷和在炉内的富集量,进行排碱优化工作,寻求适合太钢高炉排碱的炉渣成分。研究结果表明,碱度对炉渣排碱能力影响最大,其他因素依次为温度、MgO含量、Al₂O₃含量。结合太钢高炉生产实际,排碱期间炉渣碱度控制在1.10~1.15范围时,高炉排碱和脱硫的综合效果较好。同时,调整烧结混匀矿和高炉炉料结构及定期排碱作业,给高炉降焦比提供一定空间。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	作者相关文章
	刘文文
	齐渊洪
	焦克新
	李昊堃

关键词 ：高炉, 碱金属, 炉渣, 排碱, 源头控制, 焦比

Abstract：According to the current situation of the increasing of alkali load and coke ratio in No.6 blast furnace of Tisco, the equilibrium distribution of alkali metals was calculated by measuring the alkali metals content in the raw fuel and output. The alkali load was mainly derived from sinter, and the vast majority of alkali metal was discharged through slag. In order to reduce the burden and enrichment of alkali metal in blast furnace, and find the suitable composition of slag, the discharge alkali test was carried out. The results showed that the basicity had the greatest influence on discharging alkali for slag, and other influencing factors were temperature, MgO content and Al₂O₃ content in proper order. The basicity was controlled in the range of 1.10-1.15, combining with the actual production data, the comprehensive effect of discharge alkali and desulfurization was better. At the same time, the burden structure of the sinter and blast furnace was optimized and the alkali metal was discharged regularly, which were in favor of reducing the coke ratio in blast furnace.

Key words： blast furnace alkali metal slag discharge alkali source control coke ratio

收稿日期: 2020-05-08

作者简介: 刘文文(1983—), 男, 博士生, 高级工程师; E-mail: liuwenwen1239@163.com

引用本文:

刘文文, 齐渊洪, 焦克新, 李昊堃. 太钢6号高炉碱金属的平衡与控制[J]. 中国冶金, 2020, 30(12): 72-76. LIU Wen-wen, QI Yuan-hong, JIAO Ke-xin, LI Hao-kun. Balance and control of alkali metal in No.6 blast furnace of Tisco[J]. China Metallurgy, 2020, 30(12): 72-76.

链接本文:

http://www.zgyj.ac.cn/CN/10.13228/j.boyuan.issn1006-9356.20200253 或 http://www.zgyj.ac.cn/CN/Y2020/V30/I12/72

[1]	张建良,李洋,袁骧,等.中国钢铁企业尘泥处理现状及展望[J].钢铁,2018,53(6):1.
[2]	王彩虹,蒋心泰.酒钢除尘灰性质分析及利用技术[J].中国冶金,2019,29(3):57.
[3]	胡金波,甄常亮,李旺,等.唐钢高炉碱金属的控制措施[J]. 炼铁,2018, 37(5): 24.
[4]	陈艳波,张贺顺,郑朋超,等.首钢京唐高炉碱金属的危害及应对措施[J]. 炼铁,2017, 36(3): 37.
[5]	王冲,谢冬,冯帅,等.碱金属对高炉原料冶金性能的影响[J]. 钢铁研究,2017, 45(1): 6.
[6]	王纲,冯帅,尹志华.降低邯钢高炉碱金属危害的研究[J]. 四川冶金,2019, 41(1): 14.
[7]	吴铿,折媛,刘起航,等.高炉大型化后对焦炭性质及在炉内劣化的思考[J].钢铁,2017,52(10):1.
[8]	郑朋超,张建良,刘征建,等.碱金属对焦炭热性能的影响[J]. 中国冶金,2017, 27(5): 19.
[9]	Maharshi Ghosh Dastidar, Anrin Bhattacharya, Bitan Kumar Sarkar,et al. The effect of alkali on the reaction kinetics and strength of blast furnace coke[J]. Fuel, 2020, 268:1.
[10]	王海洋,张建良,钟建波,等.钾蒸气对顶装焦与捣固焦劣化的影响[J].中国冶金,2018,28(12):12.
[11]	吕青青,杜屏,周俊兰.高炉块状带焦炭劣化机理[J]. 钢铁,2016, 51(1):13.
[12]	余松,赵宏博,程树森,等.高炉内碱金属和碱金属氯化物对焦炭的影响[J]. 钢铁研究学报,2011, 23(5): 20.
[13]	雷宪军,王庆学.酒钢高炉碱金属分析和控制措施[J]. 炼铁,2014, 33(6): 29.
[14]	李建云.莱钢型钢烧结、高炉碱金属分布及平衡研究[J]. 烧结球团,2011, 36(2): 7.
[15]	赵贵希,刘其敏.高炉碱负荷和锌负荷的来源透析及对策[J]. 中国冶金,2014, 24(12): 51.
[16]	张世忠,高东辉,王鹏飞,等. 包钢6号高炉中钾、钠的平衡与控制[J]. 中国冶金,2019, 29(3): 28.
[17]	吕庆,李福民,顾林娜,等.含碱高炉渣排碱、脱硫能力的实验研究[J]. 东北大学学报:自然科学版,2007, 28(11): 1590.
[18]	CHEN Shao-peng, WANG Wei, XU Run-sheng,et al. Influence of multiple factors on the alkali metal enrichment in blast furnaces by a thermodynamic model[J]. Ironmaking and Steelmaking, 2020, 47(3):219.