Article(id=1202984232143516211, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, articleNumber=1009-5438(2022)03-0027-04, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1642608000000, receivedDateStr=2022-01-20, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1764743391309, onlineDateStr=2025-12-03, pubDate=1656086400000, pubDateStr=2022-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764743391309, onlineIssueDateStr=2025-12-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1764743391309, creator=13701087609, updateTime=1764743391309, updator=13701087609, issue=Issue{id=1202984226762219866, tenantId=1146029695717560320, journalId=1185652524569653253, year='2022', volume='48', 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=1764743390026, creator=13701087609, updateTime=1764744768237, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1202990007461049256, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1202990007461049257, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1202984226762219866, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=27, endPage=30, ext={EN=ArticleExt(id=1202984232441311814, articleId=1202984232143516211, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Analysis on Influences of Optimizing Process Conditions for Basic Oxygen Furnace on Improving Scrap Ratio, columnId=1187340472918880861, journalTitle=Science & Technology of Baotou Steel, columnName=Production Practice and Management, runingTitle=null, highlight=null, articleAbstract=
According to the smelting process of converter, the heat balance of converter is calculated with the heat balance calculation method. The influences of different molten iron conditions, production processes and temperature control on improving the addition of scrap steel are calculated. The specific measures for improving the scrap ratio of basic oxygen furnace(BOF) are put forward by analyzing the factors affecting change of scrap ratio of BOF as well as studying the relations between scrap ratio and smelting process conditions of BOF, which are as references for relevant steelmaking plants.
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根据转炉冶炼工艺情况,运用热平衡计算方法对转炉热平衡进行计算,计算不同入炉铁水条件、生产工艺及温度控制对提高废钢加入量的影响。通过分析影响转炉废钢比变化的因素,研究废钢比与转炉冶炼工艺条件之间的关系,提出转炉提高废钢比的具体措施,供相关炼钢厂参考。
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张 胤(1985-),男,河北省张家口市人,工程师,现从事炼钢工艺研究工作。
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张 胤(1985-),男,河北省张家口市人,工程师,现从事炼钢工艺研究工作。
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张 胤(1985-),男,河北省张家口市人,工程师,现从事炼钢工艺研究工作。
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2017,(7):67-69., articleTitle=高废钢比例对炼钢工艺的影响, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1202984233737351833, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232143516211, xref=null, ext=[AuthorCompanyExt(id=1202984233749934746, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232143516211, companyId=1202984233737351833, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China), AuthorCompanyExt(id=1202984233758323355, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232143516211, companyId=1202984233737351833, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=内蒙古包钢钢联股份有限公司技术中心,内蒙古 包头 014010)])], figs=[ArticleFig(id=1202984235792560943, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232143516211, language=EN, label=null, caption=null, figureFileSmall=d47mZosSffTUVPPOsURm5g==, figureFileBig=AfEIICItjT2e+YKHdXSJ8Q==, tableContent=null), ArticleFig(id=1202984235889029945, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232143516211, language=CN, label=图1, caption=
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| 类别 | C | Si | Mn | P | S |
| 铁水 | 4.0 | 0.40 | 0.50 | 0.13 | 0.03 |
| 钢水 | 0.1 | 0.01 | 0.38 | 0.015 | 0.02 |
), ArticleFig(id=1202984236543341405, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232143516211, language=CN, label=表1, caption=
铁水和钢水的成分计算设定值(质量分数)%
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | C | Si | Mn | P | S |
| 铁水 | 4.0 | 0.40 | 0.50 | 0.13 | 0.03 |
| 钢水 | 0.1 | 0.01 | 0.38 | 0.015 | 0.02 |
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| 铁水 | 废钢 | 物料 | 炉渣 | 炉气 | 烟尘 |
| 1 280 | 25 | 25 | 1 580 | 1 450 | 1 450 |
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热平衡计算入炉料温度℃
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| 铁水 | 废钢 | 物料 | 炉渣 | 炉气 | 烟尘 |
| 1 280 | 25 | 25 | 1 580 | 1 450 | 1 450 |
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| 反应公式 | 反应热 |
| [C]+[O]——CO | 41 900.4 |
| [C]+2[O]——CO2 | 13 933.6 |
| [Si]+2[Si]——SiO2 | 11 680.8 |
| [Mn]+[O]——MnO | 791.28 |
| [Fe]+[O]——FeO | 2 401.25 |
| 2[Fe]+3[O]——Fe2O3 | 1 847.56 |
| 2[P]+5[O]——P2O5 | 2 467.4 |
| (P2O5)+4(CaO)——4CaO·P2O5 | 1 551.84 |
| (SiO2)+2(CaO)——2CaO·SiO2 | 1 982.88 |
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热平衡计算各反应化学热kJ
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| 反应公式 | 反应热 |
| [C]+[O]——CO | 41 900.4 |
| [C]+2[O]——CO2 | 13 933.6 |
| [Si]+2[Si]——SiO2 | 11 680.8 |
| [Mn]+[O]——MnO | 791.28 |
| [Fe]+[O]——FeO | 2 401.25 |
| 2[Fe]+3[O]——Fe2O3 | 1 847.56 |
| 2[P]+5[O]——P2O5 | 2 467.4 |
| (P2O5)+4(CaO)——4CaO·P2O5 | 1 551.84 |
| (SiO2)+2(CaO)——2CaO·SiO2 | 1 982.88 |
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| 热收入项计算 | 热支出项计算 |
| 铁水物理热 | 117 875.96 | 钢水带走物理热 | 129 557.90 |
| 元素氧化及渣热收入 | 78 557.01 | 炉渣物理热 | 19 519.69 |
| 烟尘氧化热 | 5 870.67 | 炉气物理热 | 16 501.99 |
| 炉衬中碳化学热 | 5 86.26 | 烟尘物理热 | 2 429.63 |
| | 渣中含铁物理热 | 747.48 |
| | 喷溅损失物理热 | 1 412.86 |
| | 散料分解热 | 3 59.74 |
| | 其他热损失 | 1 0144.5 |
| | 废钢熔化热 | 22 216.11 |
| 合计 | 202 889.90 | | 202 889.90 |
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热平衡计算kJ
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| 热收入项计算 | 热支出项计算 |
| 铁水物理热 | 117 875.96 | 钢水带走物理热 | 129 557.90 |
| 元素氧化及渣热收入 | 78 557.01 | 炉渣物理热 | 19 519.69 |
| 烟尘氧化热 | 5 870.67 | 炉气物理热 | 16 501.99 |
| 炉衬中碳化学热 | 5 86.26 | 烟尘物理热 | 2 429.63 |
| | 渣中含铁物理热 | 747.48 |
| | 喷溅损失物理热 | 1 412.86 |
| | 散料分解热 | 3 59.74 |
| | 其他热损失 | 1 0144.5 |
| | 废钢熔化热 | 22 216.11 |
| 合计 | 202 889.90 | | 202 889.90 |
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| 铁水状况 | 废钢装入量增加/(kg·t-1) | 措施 | 影响 |
| 铁水温度每增加10 ℃ | 5.3 | 一罐到底、铁包保温剂 | 铁包保温剂使用增加生产成本。 |
| 铁水Si含量每增加0.1% | 18 | 使用提温剂硅铁 | 入炉铁水Si含量大于0.7%时,冶炼难度增加,炉料结构变化易引起喷溅。 |
| 铁水C含量每增加0.1% | 10 | 使用提温剂、增碳剂 | 增碳剂使用量过多,易引起熔池碳氧反应不平衡,冶炼周期变长,终点钢水碳命中率降低。 |
| 单炉铁水装入量增加1% | 8 | 提高铁包出铁量 | 影响铁包净空,造成脱硫工序操作困难。 |
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相同条件不同铁水状况对废钢加入量影响
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| 铁水状况 | 废钢装入量增加/(kg·t-1) | 措施 | 影响 |
| 铁水温度每增加10 ℃ | 5.3 | 一罐到底、铁包保温剂 | 铁包保温剂使用增加生产成本。 |
| 铁水Si含量每增加0.1% | 18 | 使用提温剂硅铁 | 入炉铁水Si含量大于0.7%时,冶炼难度增加,炉料结构变化易引起喷溅。 |
| 铁水C含量每增加0.1% | 10 | 使用提温剂、增碳剂 | 增碳剂使用量过多,易引起熔池碳氧反应不平衡,冶炼周期变长,终点钢水碳命中率降低。 |
| 单炉铁水装入量增加1% | 8 | 提高铁包出铁量 | 影响铁包净空,造成脱硫工序操作困难。 |
), ArticleFig(id=1202984237373813630, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1202984232143516211, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 工艺制度 | 废钢加入量增加/(kg·t-1) | 措施 | 影响 |
| 终点温度每降低10 ℃ | 7.0 | 控制转炉终点温度 | 增加后续工序处理时间。 |
| 废钢温度每提高100 ℃ | 3.4 | 使用废钢预热设备 | 增加废钢熔化能耗及后续工序处理时间。 |
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相同铁水条件不同工艺制度对废钢加入量影响
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| 工艺制度 | 废钢加入量增加/(kg·t-1) | 措施 | 影响 |
| 终点温度每降低10 ℃ | 7.0 | 控制转炉终点温度 | 增加后续工序处理时间。 |
| 废钢温度每提高100 ℃ | 3.4 | 使用废钢预热设备 | 增加废钢熔化能耗及后续工序处理时间。 |
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