Abstract:The most commonly used safety landfill disposal method of the stainless steel pickling sludge occupies land and cannot reuse the valuable components such as nickel and chromium that exist in the pickling sludge. A technical idea of using stainless steel pickling sludge as sintering burdens so as to recycle valuable metals of Fe, Cr, Ni and make full use of the flux components was proposed, expecting to realize the closedcircuit resource utilization of pickling sludge in metallurgical enterprises. The bond phase strength test of iron concentrate added with pickling sludge showed that the bond phase strength increased first and then decreased with the increase of pickling sludge, and the corresponding value decreased with the increase of basicity. When the iron concentrate was added with 10% pickling sludge with the basicity of 1.5 and heating at 1 280 ℃ for 4 min, the content of hematite and magnetite in the sample was the largest while the cuspidine content was the smallest, leading the bond phase strength to reach the largest(15.12 kN). The equilibrium phase sintering test showed that the addition of pickling sludge could improve the sinter quality, and the comprehensive performance of the sinter was the best when the iron concentrate was added with 10% pickling sludge with basicity of 1.5 sintering at 1 300 ℃ for 240 min.
李小明,汪衍军,贾李锋,邢相栋. 不锈钢酸洗污泥对烧结黏结相与平衡相的影响[J]. 钢铁, 2019, 54(11): 116-122.
LI Xiaoming,WANG Yanjun,JIA Lifeng,XING Xiangdong. Effect of stainless steel pickling sludge on bond #br#
phase and equilibrium phase of sinter. Iron and Steel, 2019, 54(11): 116-122.
Li Xiao-Ming, Xie Geng, Hojamberdiev M,et al. Characterization and recycling of nickel- and chromium-contained pickling sludge generated in production of stainless steel [J], Journal of Central South University 2014, 21(8).3241.
[3]
International Stainless Steel Forum.STAINLESS STEEL PRODUCTION REACHED 48.1 MILLION METRIC TONNES IN 2017[EB/OL].2018-3-15[2018-12-25]. http://www.worldstainless.org/news/Show/2176.
[1]
ZHAO Jun-xue, ZHAO Zhong-yu, SHI Rui-meng,et al. Issues Relevant to Recycling of Stainless-Steel Pickling Sludge[J]. JOM, 2018,12(70):2825.
[4]
SHI Lei,CHEN Ronghua,WANG Ruyi.Two-stage treatment process of pickling wastewater in the cold-rolling production of stainless steel[J]. Baosteel Technical Research, 2010, 04(2): 16.
[2]
Li Xiao-Ming, Xie Geng, Hojamberdiev M,et al. Characterization and recycling of nickel- and chromium-contained pickling sludge generated in production of stainless steel [J], Journal of Central South University 2014, 21(8).3241.
[3]
International Stainless Steel Forum.STAINLESS STEEL PRODUCTION REACHED 48.1 MILLION METRIC TONNES IN 2017[EB/OL].2018-3-15[2018-12-25]. http://www.worldstainless.org/news/Show/2176.
[5]
王海林.冷轧不锈钢带钢酸洗的工艺与废气、废酸处理[J].中国冶金,2009,19(6):40.(WANG Hai-lin.Process Conditions,Exhaust Gases and Waste Acid Treatment in Cold Rolling Stainless Strip Steel Picking[J]. China Metallurgy, 2009, 19(6): 40)
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, (11): 24.(FANG Jin-le, YANG Wen-tao. Present Situation and Prospect of Treatment of Stainless Steel Pickling[J]. China Resources Comprehensive Utilization, 2014,(11): 24.)
[8]
李小明, 尹卫东, 沈苗,等. 铬镍不锈钢酸洗污泥还原预处理脱硫动力学[J]. 钢铁, 2018,53(2):83.(LI Xiao-ming,YIN Wei-dong, SHEN Miao,et al.Desulfurization dynamics on reduction pre-treatment of sludge from pickling of chromium nickel stainless steel[J]. Iron and Steel,2018,53(2):83.)
[4]
SHI Lei,CHEN Ronghua,WANG Ruyi.Two-stage treatment process of pickling wastewater in the cold-rolling production of stainless steel[J]. Baosteel Technical Research, 2010, 04(2): 16.
[5]
王海林.冷轧不锈钢带钢酸洗的工艺与废气、废酸处理[J].中国冶金,2009,19(6):40.(WANG Hai-lin.Process Conditions,Exhaust Gases and Waste Acid Treatment in Cold Rolling Stainless Strip Steel Picking[J]. China Metallurgy, 2009, 19(6): 40)
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, (11): 24.(FANG Jin-le, YANG Wen-tao. Present Situation and Prospect of Treatment of Stainless Steel Pickling[J]. China Resources Comprehensive Utilization, 2014,(11): 24.)
[8]
李小明, 尹卫东, 沈苗,等. 铬镍不锈钢酸洗污泥还原预处理脱硫动力学[J]. 钢铁, 2018,53(2):83.(LI Xiao-ming,YIN Wei-dong, SHEN Miao,et al.Desulfurization dynamics on reduction pre-treatment of sludge from pickling of chromium nickel stainless steel[J]. Iron and Steel,2018,53(2):83.)
[9]
Ma G, A .M. Garbers-Craig.Cr(VI) containing electric furnace dusts and filter cake from a stainless steel waste treatment plant: Part 1 a-Characteristics and microstructure[J]. Steelmaking. 2006, 33(3): 229.
[10]
戴伟华. 镍铬酸洗污泥处理工艺的探讨[J]. 有色冶金设计与研究, 2010, 31(6): 48.(DAI Wei-hua. A Discussion on Treatment Process of Nickel-Chromium Slime from Acid Cleaning[J]. Nonferrous Metals Engineering & Research, 2010, 31(6): 48.)
[11]
吴树彬, 李惠林, 金秀峰. 酸洗污泥回收利用方法: CN105859092A[P]. 2016-08-17.(WU Shu-bin, LI Hui-lin, JIN Xiu-feng. Recovery and utilization of pickling sludge: CN105859092A[P]. 2016-08-17.)
[9]
Ma G, A .M. Garbers-Craig.Cr(VI) containing electric furnace dusts and filter cake from a stainless steel waste treatment plant: Part 1 a-Characteristics and microstructure[J]. Steelmaking. 2006, 33(3): 229.
[10]
戴伟华. 镍铬酸洗污泥处理工艺的探讨[J]. 有色冶金设计与研究, 2010, 31(6): 48.(DAI Wei-hua. A Discussion on Treatment Process of Nickel-Chromium Slime from Acid Cleaning[J]. Nonferrous Metals Engineering & Research, 2010, 31(6): 48.)
[11]
吴树彬, 李惠林, 金秀峰. 酸洗污泥回收利用方法: CN105859092A[P]. 2016-08-17.(WU Shu-bin, LI Hui-lin, JIN Xiu-feng. Recovery and utilization of pickling sludge: CN105859092A[P]. 2016-08-17.)
[12]
Li Xiao-ming,Zhao Jun-xue,Cui Ya-ru,et al.The Comprehensive Utilization of EAF Dust and Pickling Sludge of Stainless Steel Works[J]. Materials Science Forum,2009,4(28): 603.
[13]
祝万鹏, 杨志华. 溶剂萃取法回收电镀污泥中的有价金属[J]. 工业给排水, 1995, 12(4):16.(ZHU Wan-peng. The metals recovery from electroplating sludge using solvent extraction. Water & Wastewater Engineering. 1995,12(4):16.)
[12]
Li Xiao-ming,Zhao Jun-xue,Cui Ya-ru,et al.The Comprehensive Utilization of EAF Dust and Pickling Sludge of Stainless Steel Works[J]. Materials Science Forum,2009,4(28): 603.
[14]
Ma P, Lindblom B, Bj?rkman B. Experimental studies on solid-state reduction of pickling sludge generated in the stainless steel production[J]. Scandinavian Journal of Metallurgy, 2005, 34(1): 31.
[13]
祝万鹏, 杨志华. 溶剂萃取法回收电镀污泥中的有价金属[J]. 工业给排水, 1995, 12(4):16.(ZHU Wan-peng. The metals recovery from electroplating sludge using solvent extraction. Water & Wastewater Engineering. 1995,12(4):16.)
[15]
徐科. 钢铁厂废水污泥中铬的回收研究[D].同济大学, 2006.(XU Ke.The research of chromium recovery from steel waste water treatment sludge[D].Tongji University,2006)
[16]
石磊, 陈荣欢, 王如意. 不锈钢冷轧污泥配矿压球工艺及冶金性能研究[J]. 宝钢技术, 2013, 5(2): 23.(SHI Lei,CHEN Rong-huan,WANG Ru-yi.Study on metallurgical properties and pellet proportioning technology of stainless steel cold- rolling sludge[J]. Baosteel Technology,2013,5(2):23.)
[17]
齐伟, 毛晓明, 沈红标. 烧结矿矿相特性研究 [J]. 宝钢技术, 2018, 1(1): 1.(QI Wei , MAO Xiao-ming , SHEN Hong-biao , et al. Research on properties of sinter mineral phases[J]. Baosteel Technology, 2018 1(1): 1.)
[18]
李小明, 王翀, 邢相栋,等. 不锈钢酸洗污泥对铁矿粉烧结液相生成的影响[J].烧结球团, 2018, 43(34): 12.(LI Xiao-ming,WANG Chong,XING Xiangdong, et al. Influence of stainless steel pickling sludge on liquid phase formulationduring iron ore fines sintering[J], Sintering and Pelletizing,2018, 43(34): 12.)
[14]
Ma P, Lindblom B, Bj?rkman B. Experimental studies on solid-state reduction of pickling sludge generated in the stainless steel production[J]. Scandinavian Journal of Metallurgy, 2005, 34(1): 31.
[15]
徐科. 钢铁厂废水污泥中铬的回收研究[D].同济大学, 2006.(XU Ke.The research of chromium recovery from steel waste water treatment sludge[D].Tongji University,2006)
[16]
石磊, 陈荣欢, 王如意. 不锈钢冷轧污泥配矿压球工艺及冶金性能研究[J]. 宝钢技术, 2013, 5(2): 23.(SHI Lei,CHEN Rong-huan,WANG Ru-yi.Study on metallurgical properties and pellet proportioning technology of stainless steel cold- rolling sludge[J]. Baosteel Technology,2013,5(2):23.)
[17]
齐伟, 毛晓明, 沈红标. 烧结矿矿相特性研究 [J]. 宝钢技术, 2018, 1(1): 1.(QI Wei , MAO Xiao-ming , SHEN Hong-biao , et al. Research on properties of sinter mineral phases[J]. Baosteel Technology, 2018 1(1): 1.)
[18]
李小明, 王翀, 邢相栋,等. 不锈钢酸洗污泥对铁矿粉烧结液相生成的影响[J].烧结球团, 2018, 43(34): 12.(LI Xiao-ming,WANG Chong,XING Xiangdong, et al. Influence of stainless steel pickling sludge on liquid phase formulationduring iron ore fines sintering[J], Sintering and Pelletizing,2018, 43(34): 12.)