Article(id=1198277730048508095, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198277724201644449, articleNumber=1009-5438(2023)03-0027-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1675180800000, receivedDateStr=2023-02-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763621273766, onlineDateStr=2025-11-20, pubDate=1687622400000, pubDateStr=2023-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763621273766, onlineIssueDateStr=2025-11-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763621273766, creator=13701087609, updateTime=1763621273766, updator=13701087609, issue=Issue{id=1198277724201644449, tenantId=1146029695717560320, journalId=1185652524569653253, year='2023', volume='49', issue='3', 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=1763621272373, creator=13701087609, updateTime=1763621583776, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1198279030370829084, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198277724201644449, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1198279030370829085, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1198277724201644449, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=27, endPage=30, ext={EN=ArticleExt(id=1198277731210330311, articleId=1198277730048508095, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Experimental Study on Water Model of Bottom Blowing System for 150 t Converter, columnId=1187100781414069182, journalTitle=Science & Technology of Baotou Steel, columnName=Production Practices and Management, runingTitle=null, highlight=null, articleAbstract=
The effects of number of bottom gas supply component and bottom-blown gas intensity on mixing time of molten pool are studied through the water model test of bottom blowing system for 150 t converter in Steel-making Plant. The mixing time of 6 bottom gas supply components is the shortest with the same bottom-blown gas intensity; the higher the bottom-blown gas intensity, the shorter the mixing time with the same number of bottom gas supply component. The mode of bottom-blown gas supply in the processes of smelting different steel grades with 150 t converter is optimized combining with the results of water model test. As a result, the dephosphorization rate at smelting end-point could reach 92.3% and total iron content of slags at end-point of whole campaign could reach 17.3%, which could provide the technical guidance for improving the economic and technical norms of production.
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通过对炼钢厂150 t转炉底吹系统进行水模试验,研究了底部供气元件数量、底吹供气强度对熔池混匀时间的影响。在相同底吹供气强度情况下,6支底吹供气元件混匀时间最短;在相同底吹供气元件数情况下,底吹供气强度越高,混匀时间越短。结合水模试验结论,对150 t转炉不同钢种冶炼过程中底吹供气模式进行优化,冶炼终点脱磷率达到92.3%,全炉役终点炉渣全铁含量达到17.3%,为改善生产经济技术指标提供了技术指导。
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张怀军(1968-),男,河北省蛟河县人,硕士,正高级工程师,现从事炼钢技术工作。
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1 内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010, bio={"content":"
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张怀军(1968-),男,河北省蛟河县人,硕士,正高级工程师,现从事炼钢技术工作。
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2 内蒙古包钢钢联股份有限公司炼钢厂,内蒙古 包头 014010, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1198292562495767241, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198277730048508095, xref=2, ext=[AuthorCompanyExt(id=1198292562504155850, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198277730048508095, companyId=1198292562495767241, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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上海金属,
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2 内蒙古包钢钢联股份有限公司炼钢厂,内蒙古 包头 014010)])], figs=[ArticleFig(id=1198292565649883890, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198277730048508095, language=EN, label=null, caption=null, figureFileSmall=YYe+u0X/DpazFb9fRsy6Wg==, figureFileBig=20nYjP9xZB0JmpS5ri9EAg==, tableContent=null), ArticleFig(id=1198292565737964275, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1198277730048508095, language=CN, label=图1, caption=
水力学模型装置 1-计算机;2-数据采集分析仪;3-转炉模型;4-传感器;5-模型底吹孔;6-流量调节阀;7-稳压罐;8-空气压缩机;9-压力表
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| 冶炼钢种 | 冶炼前期 | 冶炼中期 | 冶炼末期 | 等样 | 溅渣 | 待产 |
| 低碳 | 0.20 | 0.14 | 0.25 | 0.11 | 0.23 | 0.06 |
| 中碳 | 0.20 | 0.14 | 0.23 |
| 高碳 | 0.20 | 0.12 | 0.19 |
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水模试验底吹供气流量m3/h
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| 冶炼钢种 | 冶炼前期 | 冶炼中期 | 冶炼末期 | 等样 | 溅渣 | 待产 |
| 低碳 | 0.20 | 0.14 | 0.25 | 0.11 | 0.23 | 0.06 |
| 中碳 | 0.20 | 0.14 | 0.23 |
| 高碳 | 0.20 | 0.12 | 0.19 |
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供气强度 /(L·min-1) | 混匀时间/s |
| 8支 | 6支 | 4支 |
| 0.11 | 52.72 | 59.06 | 62.94 |
| 0.20 | 35.32 | 29.25 | 36.32 |
| 0.25 | 23.64 | 23.64 | 32.38 |
| 0.30 | 19.49 | 18.56 | 23.31 |
| 0.40 | 15.30 | 13.62 | 18.57 |
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不同底吹供气元件数量混匀时间
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供气强度 /(L·min-1) | 混匀时间/s |
| 8支 | 6支 | 4支 |
| 0.11 | 52.72 | 59.06 | 62.94 |
| 0.20 | 35.32 | 29.25 | 36.32 |
| 0.25 | 23.64 | 23.64 | 32.38 |
| 0.30 | 19.49 | 18.56 | 23.31 |
| 0.40 | 15.30 | 13.62 | 18.57 |
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| 钢种 | 冶炼前期 | 冶炼中期 | 冶炼末期 | 拉碳后搅 | 溅渣 | 待产 |
| 优化前低碳 | 10 | 7 | 10 | 7 | 15 | 1 |
| 优化前中碳 | 10 | 7 | 10 |
| 优化前高碳 | 10 | 7 | 9 |
| 优化后低碳 | 14 | 8 | 16 | 15 | 15 | 1 |
| 优化后中碳 | 13 | 8 | 15 |
| 优化后高碳 | 12 | 8 | 12 |
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底吹供气强度优化对比m3/h
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| 钢种 | 冶炼前期 | 冶炼中期 | 冶炼末期 | 拉碳后搅 | 溅渣 | 待产 |
| 优化前低碳 | 10 | 7 | 10 | 7 | 15 | 1 |
| 优化前中碳 | 10 | 7 | 10 |
| 优化前高碳 | 10 | 7 | 9 |
| 优化后低碳 | 14 | 8 | 16 | 15 | 15 | 1 |
| 优化后中碳 | 13 | 8 | 15 |
| 优化后高碳 | 12 | 8 | 12 |
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