Article(id=1187341679557226813, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1187341678487679284, articleNumber=1009-5438(2022)02-0008-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1644422400000, receivedDateStr=2022-02-10, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1761013916148, onlineDateStr=2025-10-21, pubDate=1650816000000, pubDateStr=2022-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1761013916148, onlineIssueDateStr=2025-10-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1761013916148, creator=13701087609, updateTime=1761013916148, updator=13701087609, issue=Issue{id=1187341678487679284, tenantId=1146029695717560320, journalId=1185652524569653253, year='2022', volume='48', issue='2', pageStart='1', pageEnd='98', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1761013915892, creator=13701087609, updateTime=1761015806887, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1187349609945907689, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1187341678487679284, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1187349609945907690, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1187341678487679284, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=8, endPage=11, ext={EN=ArticleExt(id=1187341679720804677, articleId=1187341679557226813, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Study on Demanganization Process in Ladle Furnace (LF), columnId=1187340472918880861, journalTitle=Science & Technology of Baotou Steel, columnName=Production Practice and Management, runingTitle=null, highlight=null, articleAbstract=
The manganese content of molten iron in the production line of steelmaking in Rare Earth Steel Plate Co. is higher so that the highly purified armco iron could not be smelted by converter process. In the paper, it is introduced the demanganization process with double slag in LF is developed through simulating the demanganization condition of converter with LF, starting with such three aspects as basicity of slag, demanganization temperature and oxidability of slag as well as taking full advantage of existing equipment conditions of production line. The slag with high oxidation after tapping of molten steel from converter is utilized in LF, the ingredient of LF clinker is reasonably adjusted to produce efficient slag of demanganization and promote the steel slag reaction through argon stirring so as to create good thermodynamic and dynamical conditions for demanganization. According to the requirements of manganese content of products, double slag and single slag processes are applied in operations to realize the stable batch production of armco iron with the manganese content less than 0.03% and 0.02%.
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稀土钢板材公司炼钢产线铁水锰含量较高,无法通过转炉工序冶炼高纯度工业纯铁。文章通过LF精炼炉模拟转炉脱锰条件,从炉渣碱度、脱锰温度和渣氧化性三个方面入手,充分利用产线现有设备条件,开发出LF精炼炉双渣脱锰工艺。LF精炼炉通过利用转炉出钢后高氧化性炉渣,合理调整LF炉渣配料,造高效脱锰渣,通过氩气搅拌促进钢渣反应,为脱锰创造良好的热力学与动力学条件。根据产品锰含量要求采用双渣及单渣法进行操作,实现锰含量小于0.03%和0.02%工业纯铁的稳定批量生产。
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徐少华(1986-),男,内蒙古包头市人,工程师, 现从事炼钢精炼生产技术工作。
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徐少华(1986-),男,内蒙古包头市人,工程师, 现从事炼钢精炼生产技术工作。
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11(6):943-950., articleTitle=鱼雷罐中铁水预处理喷粉脱锰的动力学模型, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1187341820880106058, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, xref=null, ext=[AuthorCompanyExt(id=1187341820888494667, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, companyId=1187341820880106058, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Inner Mongolia Baotou Steel Rare Earth Steel Plate Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China), AuthorCompanyExt(id=1187341820896883276, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, companyId=1187341820880106058, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=内蒙古包钢稀土钢板材有限责任公司, 内蒙古 包头 014010)])], figs=[ArticleFig(id=1187341823467991705, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, language=EN, label=null, caption=null, figureFileSmall=EWttt6jnLZlyDgxe5id6tw==, figureFileBig=O8+qwI5prhgAUaui88hz4Q==, tableContent=null), ArticleFig(id=1187341823539294875, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, language=CN, label=图1, caption=
转炉终点锰含量与转炉初始锰含量的线性关系, figureFileSmall=EWttt6jnLZlyDgxe5id6tw==, figureFileBig=O8+qwI5prhgAUaui88hz4Q==, tableContent=null), ArticleFig(id=1187341823602209437, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, language=EN, label=null, caption=null, figureFileSmall=HTiIJYdliRK16VmvLOUAAA==, figureFileBig=ZwFMz5elLHgydGRRBGvbgw==, tableContent=null), ArticleFig(id=1187341823711261343, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, language=CN, label=图2, caption=
炉渣氧化铁含量与锰的分配系数的关系, figureFileSmall=HTiIJYdliRK16VmvLOUAAA==, figureFileBig=ZwFMz5elLHgydGRRBGvbgw==, tableContent=null), ArticleFig(id=1187341823769981601, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, language=EN, label=null, caption=null, figureFileSmall=aVfA4QeHqoiNk3QrJr5pzA==, figureFileBig=Jomlt9nVAXECEPQ+rqYCQA==, tableContent=null), ArticleFig(id=1187341823837090467, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, language=CN, label=图3, caption=
炉渣碱度与锰的分配系数的关系, figureFileSmall=aVfA4QeHqoiNk3QrJr5pzA==, figureFileBig=Jomlt9nVAXECEPQ+rqYCQA==, tableContent=null), ArticleFig(id=1187341823904199333, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1187341679557226813, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Si | Mn | P | S |
| 0.32~0.63 | 0.35~0.45 | 0.12~0.13 | 0.001 |
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入炉铁水成分(质量分数)%
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| Si | Mn | P | S |
| 0.32~0.63 | 0.35~0.45 | 0.12~0.13 | 0.001 |
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| 熔炼号 | 碱度 | 第一次渣量 /kg | FeO含量 /% | 转炉终点锰 含量/% | 第一次脱后锰 含量/% | 第一次脱锰率 /% |
| 22201678 | 4.22 | 2 868 | 15.62 | 0.064 | 0.026 | 59.37 |
| 22201680 | 3.91 | 2 601 | 15.82 | 0.055 | 0.025 | 54.54 |
| 22201681 | 4.36 | 2 590 | 17.92 | 0.036 | 0.021 | 41.67 |
| 22201682 | 4.05 | 2 521 | 17.55 | 0.041 | 0.023 | 43.90 |
| 22201683 | 4.19 | 2 799 | 15.75 | 0.043 | 0.023 | 46.51 |
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LF炉第一次造渣脱锰结果
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| 熔炼号 | 碱度 | 第一次渣量 /kg | FeO含量 /% | 转炉终点锰 含量/% | 第一次脱后锰 含量/% | 第一次脱锰率 /% |
| 22201678 | 4.22 | 2 868 | 15.62 | 0.064 | 0.026 | 59.37 |
| 22201680 | 3.91 | 2 601 | 15.82 | 0.055 | 0.025 | 54.54 |
| 22201681 | 4.36 | 2 590 | 17.92 | 0.036 | 0.021 | 41.67 |
| 22201682 | 4.05 | 2 521 | 17.55 | 0.041 | 0.023 | 43.90 |
| 22201683 | 4.19 | 2 799 | 15.75 | 0.043 | 0.023 | 46.51 |
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| 熔炼号 | 碱度 | 第二次渣量 /kg | FeO含量 /% | 第一次脱后锰 含量/% | 第二次脱后锰 含量/% | 第二次造渣 脱锰率/% | 综合脱锰率 /% |
| 22201678 | 4.89 | 1 569 | 15.62 | 0.026 | 0.016 | 38.46 | 75.00 |
| 22201680 | 5.12 | 1 380 | 15.82 | 0.025 | 0.018 | 28.00 | 67.27 |
| 22201681 | 4.76 | 1 633 | 17.92 | 0.021 | 0.014 | 33.33 | 61.11 |
| 22201682 | 4.91 | 1 585 | 17.55 | 0.023 | 0.015 | 34.78 | 63.41 |
| 22201683 | 5.23 | 1 496 | 15.75 | 0.023 | 0.016 | 30.43 | 62.79 |
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LF炉双渣脱锰结果
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| 熔炼号 | 碱度 | 第二次渣量 /kg | FeO含量 /% | 第一次脱后锰 含量/% | 第二次脱后锰 含量/% | 第二次造渣 脱锰率/% | 综合脱锰率 /% |
| 22201678 | 4.89 | 1 569 | 15.62 | 0.026 | 0.016 | 38.46 | 75.00 |
| 22201680 | 5.12 | 1 380 | 15.82 | 0.025 | 0.018 | 28.00 | 67.27 |
| 22201681 | 4.76 | 1 633 | 17.92 | 0.021 | 0.014 | 33.33 | 61.11 |
| 22201682 | 4.91 | 1 585 | 17.55 | 0.023 | 0.015 | 34.78 | 63.41 |
| 22201683 | 5.23 | 1 496 | 15.75 | 0.023 | 0.016 | 30.43 | 62.79 |
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