不锈钢酸洗污泥对铁矿粉烧结液相生成的影响
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摘要
为了有效利用不锈钢生产过程产生的大量不锈钢酸洗污泥,本文采用Factsage热力学软件计算不锈钢酸洗污泥对铁矿粉烧结液相生成特性和CaO-SiO_2-Fe_2O_3-Al_2O_3-MgO-CaF_2体系液相分布的影响,并选用熔点熔速测定仪研究了不锈钢酸洗污泥对铁矿粉液相生成能力的影响规律,建立了液相流动性与不锈钢酸洗污泥液配加比例之间的数学模型,揭示了液相生成量的变化特征。结果表明,实验结果与FactSage计算值基本一致,不锈钢酸洗污泥配加比例小于10%能够有效改善铁矿粉液相生成特征温度,而对铁矿粉液相生成量的影响较小,液相流动性指数与不锈钢酸洗污泥配加比例关系为:y=18. 40305-0. 09139x-0. 02644x~2+9. 07734x~3。
In order to effectively utilize the pickling sludge produced in manufacture of stainless steel,in this paper,the thermal dynamics software Factsage was used to calculate the influence of the stainless steel pickling sludge on the liquid phase generation characteristics during iron ore fines sintering and the liquid phase distribution of CaO-SiO_2-Fe_2O_3-Al_2O_3-MgO-CaF_2 system. The melting point and melting speed tester was selected to study the rules of influence of stainless steel pickling sludge on liquid phase generating capacity of iron ore fines,and the mathematical model between liquid phase fluidity and proportion of stainless steel pickling sludge was established,which expressed changing characteristics of liquid phase quantity. The results show that,the test results are basically consistent with FactSage calculation value. When the proportion of stainless steel pickling sludge is less than 10%,it can effectively improve the characteristic temperature of liquid phase generation of iron ore fines but has little effect on the liquid phase formation quantity. The formula can represent the relationship between the fluidity index of liquid phase and proportion of stainless steel pickling sludge,which is y = 18. 40305-0. 09139 x-0. 02644 x~2+ 9. 07734 x~3.
In order to effectively utilize the pickling sludge produced in manufacture of stainless steel,in this paper,the thermal dynamics software Factsage was used to calculate the influence of the stainless steel pickling sludge on the liquid phase generation characteristics during iron ore fines sintering and the liquid phase distribution of CaO-SiO_2-Fe_2O_3-Al_2O_3-MgO-CaF_2 system. The melting point and melting speed tester was selected to study the rules of influence of stainless steel pickling sludge on liquid phase generating capacity of iron ore fines,and the mathematical model between liquid phase fluidity and proportion of stainless steel pickling sludge was established,which expressed changing characteristics of liquid phase quantity. The results show that,the test results are basically consistent with FactSage calculation value. When the proportion of stainless steel pickling sludge is less than 10%,it can effectively improve the characteristic temperature of liquid phase generation of iron ore fines but has little effect on the liquid phase formation quantity. The formula can represent the relationship between the fluidity index of liquid phase and proportion of stainless steel pickling sludge,which is y = 18. 40305-0. 09139 x-0. 02644 x~2+ 9. 07734 x~3.
引文
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[2]Ma G,A.M.Garbers-Craig.Cr(VI)containing electric furnace dusts and filter cake from a stainless steel waste treatment plant:Part 1-Characteristics and microstructure[J].Ironmaking&Steelmaking,2006,33(3):229-237.
[3]房金乐,杨文涛.不锈钢酸洗污泥的处理现状及展望[J].中国资源综合利用,2014,32(11):24-28.
[4]Singhal A,Tewari V K,Prakash S.Characterization of stainless steel pickling bath sludge and its solidification/stabilization[J].Building&Environment,2008,43(6):1010-1015.
[5]Li Xiao-ming,Zhao Jun-xue,Cui Ya-ru,et al.The Comprehensive Utilization of EAF Dust and Pickling Sludge of Stainless Steel Works[C]//Materials Science Forum.2009:603-606.
[6]仲兆平,吴昌子,宋敏,等.不锈钢酸洗废水污泥中重金属的回收及综合利用方法:中国,101618892B[P].2010.
[7]朱明旭,白皓,刘德荣.不锈钢酸洗污泥-黏土基陶粒的制备及性能研究[J].武汉科技大学学报,2016,39(3):185-189.
[8]李强,亓玉辉,胡守忠.固体废弃物在烧结工序循环利用的研究与应用[C]//中国钢铁年会.2007.
[9]裴元东,赵志星,安钢,等.优化首钢京唐烧结钢铁流程废弃物研究及应用[C]//全国炼铁原料学术会议.2015.
[10]董杰吉,王广,李华,等.三水铝石型高铝褐铁矿粉烧结液相生成特性[J].钢铁,2014,49(11):25-30.
[11]张金柱,张士举.熔剂对阳春粉熔化性及烧结质量的影响[J].钢铁研究学报,2010,22(12):7-10.
[12]胡长庆,王玉峰,崔利民.Al2O3对铁矿粉烧结液相生成的影响[J].中国冶金,2016,26(8):12-16.
[13]吴胜利.进口铁矿粉烧结液相生成特性的评价[J].钢铁,1999,34(S):178-181.
[14]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.
[15]吕庆,黄宏虎,万新宇,等.承德钒钛磁铁矿烧结过程中液相生成能力[J].钢铁,2015,50(3):19-24.
[16]姜涛,张元波,李骞,等.一种烧结铁矿石液相生成特性的检测方法:2010.中国101666762B[P].2011.
[17]GB/T 219-2008.煤灰熔融特性的测定方法[S].
[18]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.
[19]孙敬焘,郭兴敏.含氟铁矿石烧结过程中枪晶石的生成及其与铁酸钙的作用[J].过程工程学报,2017,17(3):565-570.
[2]Ma G,A.M.Garbers-Craig.Cr(VI)containing electric furnace dusts and filter cake from a stainless steel waste treatment plant:Part 1-Characteristics and microstructure[J].Ironmaking&Steelmaking,2006,33(3):229-237.
[3]房金乐,杨文涛.不锈钢酸洗污泥的处理现状及展望[J].中国资源综合利用,2014,32(11):24-28.
[4]Singhal A,Tewari V K,Prakash S.Characterization of stainless steel pickling bath sludge and its solidification/stabilization[J].Building&Environment,2008,43(6):1010-1015.
[5]Li Xiao-ming,Zhao Jun-xue,Cui Ya-ru,et al.The Comprehensive Utilization of EAF Dust and Pickling Sludge of Stainless Steel Works[C]//Materials Science Forum.2009:603-606.
[6]仲兆平,吴昌子,宋敏,等.不锈钢酸洗废水污泥中重金属的回收及综合利用方法:中国,101618892B[P].2010.
[7]朱明旭,白皓,刘德荣.不锈钢酸洗污泥-黏土基陶粒的制备及性能研究[J].武汉科技大学学报,2016,39(3):185-189.
[8]李强,亓玉辉,胡守忠.固体废弃物在烧结工序循环利用的研究与应用[C]//中国钢铁年会.2007.
[9]裴元东,赵志星,安钢,等.优化首钢京唐烧结钢铁流程废弃物研究及应用[C]//全国炼铁原料学术会议.2015.
[10]董杰吉,王广,李华,等.三水铝石型高铝褐铁矿粉烧结液相生成特性[J].钢铁,2014,49(11):25-30.
[11]张金柱,张士举.熔剂对阳春粉熔化性及烧结质量的影响[J].钢铁研究学报,2010,22(12):7-10.
[12]胡长庆,王玉峰,崔利民.Al2O3对铁矿粉烧结液相生成的影响[J].中国冶金,2016,26(8):12-16.
[13]吴胜利.进口铁矿粉烧结液相生成特性的评价[J].钢铁,1999,34(S):178-181.
[14]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.
[15]吕庆,黄宏虎,万新宇,等.承德钒钛磁铁矿烧结过程中液相生成能力[J].钢铁,2015,50(3):19-24.
[16]姜涛,张元波,李骞,等.一种烧结铁矿石液相生成特性的检测方法:2010.中国101666762B[P].2011.
[17]GB/T 219-2008.煤灰熔融特性的测定方法[S].
[18]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.
[19]孙敬焘,郭兴敏.含氟铁矿石烧结过程中枪晶石的生成及其与铁酸钙的作用[J].过程工程学报,2017,17(3):565-570.