Article(id=1199661548819022599, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199661546335994621, articleNumber=1009-5438(2022)01-0022-05, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1635264000000, receivedDateStr=2021-10-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1763951201871, onlineDateStr=2025-11-24, pubDate=1645718400000, pubDateStr=2022-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763951201871, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763951201871, creator=13701087609, updateTime=1763951201871, updator=13701087609, issue=Issue{id=1199661546335994621, tenantId=1146029695717560320, journalId=1185652524569653253, year='2022', volume='48', issue='1', 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=1763951201279, creator=13701087609, updateTime=1763959528511, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1199696473341391309, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199661546335994621, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1199696473341391310, tenantId=1146029695717560320, journalId=1185652524569653253, issueId=1199661546335994621, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=22, endPage=26, ext={EN=ArticleExt(id=1199661549053903629, articleId=1199661548819022599, tenantId=1146029695717560320, journalId=1185652524569653253, language=EN, title=Experimental Study on Adding High Silicon Fluxed Limonite into Sintering of Baotou Steel, columnId=1187340472918880861, journalTitle=Science & Technology of Baotou Steel, columnName=Production Practice and Management, runingTitle=null, highlight=null, articleAbstract=
In the paper, the technical plan of applying high silicon fluxed limonite in sintering of Baotou Steel is proposed through carrying out the sintering experiment of replacing serpentine with high silicon fluxed limonite aiming at the characteristic of low content of SiO2 in Bayan Obo iron concentrate, which could provide technical support for optimizing the structures of iron charge and flux as well as greatly reducing production costs of sintering production of Baotou Steel. The experiment results showed that the cost of ore proportioning of sintering reduced, but drum strength of sinter decreased by 1.87 percentage points and burn-up increased by 1.06 kg/t by adding 10.2% high silicon fluxed limonite after washing and re-separation into sintering; the cost of ore proportioning of sintering reduced and there were no obvious changes for quality index of sinter by adding 3.4% high silicon fluxed limonite (raw ore), so it was suggested to adopt high silicon fluxed limonite (raw ore) for adjusting the content of SiO2 in sinter.
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文章针对白云鄂博铁精矿SiO2含量低的特点,进行了高硅熔剂性褐铁矿替代蛇纹石的烧结试验,提出了高硅熔剂性褐铁矿在包钢烧结使用的技术方案,可为包钢烧结生产优化铁料结构和熔剂结构以及大幅降低生产成本提供技术支持。试验结果表明,烧结配加10.2%水洗重选后的高硅熔剂性褐铁矿,烧结配矿成本降低,但烧结矿转鼓强度降低1.87个百分点,燃耗升高1.06 kg/t;烧结配加3.4%高硅熔剂性褐铁矿(原矿),烧结配矿成本降低,烧结矿质量指标无显著变化,因此建议采用高硅熔剂性褐铁矿(原矿)用于调整烧结矿的SiO2含量。
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赵长奕(1986-),男,吉林省长春市人,工程师,现从事烧结生产管理工作。
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赵长奕(1986-),男,吉林省长春市人,工程师,现从事烧结生产管理工作。
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赵长奕(1986-),男,吉林省长春市人,工程师,现从事烧结生产管理工作。
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3#烧结矿,赤铁矿与针状铁酸钙交织结构, figureFileSmall=KKc+DMaA4u1zChCejN18ug==, figureFileBig=KXBCQj71c0d36KTU2t5kgg==, tableContent=null), ArticleFig(id=1199695888810607197, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199661548819022599, language=EN, label=null, caption=null, figureFileSmall=5+PedEGjQVokqLPPohzTQw==, figureFileBig=844EoYYLTeu0C4yOo00Nyw==, tableContent=null), ArticleFig(id=1199695888932242018, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199661548819022599, language=CN, label=图5, caption=
3#烧结矿,橄榄石、赤铁矿及磁铁矿液相富集区, figureFileSmall=5+PedEGjQVokqLPPohzTQw==, figureFileBig=844EoYYLTeu0C4yOo00Nyw==, tableContent=null), ArticleFig(id=1199695889053876841, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199661548819022599, language=EN, label=null, caption=null, figureFileSmall=ladj619nSm+iUEJrZhE9Uw==, figureFileBig=3WE7/Ryqjuh/swta0wNn8w==, tableContent=null), ArticleFig(id=1199695889154540143, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199661548819022599, language=CN, label=图6, caption=
基准烧结矿,硅酸二钙特征, figureFileSmall=ladj619nSm+iUEJrZhE9Uw==, figureFileBig=3WE7/Ryqjuh/swta0wNn8w==, tableContent=null), ArticleFig(id=1199695889246814835, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199661548819022599, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 原料名称 | TFe | FeO | CaO | SiO2 | MgO | Al2O3 | P | S | K2O | Na2O | ZnO | Ig |
| PB粉矿 | 60.46 | <0.5 | 0.016 | 3.93 | 0.12 | 2.41 | 0.102 | 0.028 | 0.014 | 0.018 | | 5.80 |
| FMG混合粉矿 | 58.15 | <0.5 | 0.03 | 5.72 | 0.06 | 2.51 | 0.083 | 0.036 | 0.014 | <0.010 | | 7.45 |
| 白云鄂博铁精矿 | 66.46 | 28.83 | 0.92 | 1.74 | 0.83 | 0.12 | 0.064 | 1.030 | 0.133 | 0.116 | | 1.74 |
| 高硅熔剂性褐铁矿(原矿) | 42.86 | <0.5 | 0.29 | 27.72 | 0.21 | 1.04 | 0.056 | 0.157 | 0.121 | 0.042 | 0.081 | 7.57 |
高硅熔剂性褐铁矿 (水洗重选后) | 53.69 | <0.5 | 0.303 | 11.54 | 0.24 | 0.56 | 0.070 | 0.052 | 0.038 | 0.029 | 0.127 | 8.73 |
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试验用含铁原料的化学成分及烧损(质量分数) %
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| 原料名称 | TFe | FeO | CaO | SiO2 | MgO | Al2O3 | P | S | K2O | Na2O | ZnO | Ig |
| PB粉矿 | 60.46 | <0.5 | 0.016 | 3.93 | 0.12 | 2.41 | 0.102 | 0.028 | 0.014 | 0.018 | | 5.80 |
| FMG混合粉矿 | 58.15 | <0.5 | 0.03 | 5.72 | 0.06 | 2.51 | 0.083 | 0.036 | 0.014 | <0.010 | | 7.45 |
| 白云鄂博铁精矿 | 66.46 | 28.83 | 0.92 | 1.74 | 0.83 | 0.12 | 0.064 | 1.030 | 0.133 | 0.116 | | 1.74 |
| 高硅熔剂性褐铁矿(原矿) | 42.86 | <0.5 | 0.29 | 27.72 | 0.21 | 1.04 | 0.056 | 0.157 | 0.121 | 0.042 | 0.081 | 7.57 |
高硅熔剂性褐铁矿 (水洗重选后) | 53.69 | <0.5 | 0.303 | 11.54 | 0.24 | 0.56 | 0.070 | 0.052 | 0.038 | 0.029 | 0.127 | 8.73 |
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| 铁矿种类 | >10 mm | 7~10 mm | 5~7 mm | 3~5 mm | 1~3 mm | <1 mm | <3 mm |
| PB粉矿 | 3.96 | 10.06 | 13.06 | 18.14 | 13.96 | 40.83 | 54.79 |
| FMG混合粉矿 | 6.81 | 11.99 | 12.71 | 20.15 | 20.81 | 27.53 | 48.34 |
| 高硅熔剂性褐铁矿(原矿) | | 3.05 | 22.13 | 29.17 | 22.67 | 22.99 | 45.66 |
| 高硅熔剂性褐铁矿(水洗重选后) | | 0.36 | 3.89 | 17.54 | 31.16 | 25.13 | 56.29 |
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原料粒度组成(质量分数) %
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| 铁矿种类 | >10 mm | 7~10 mm | 5~7 mm | 3~5 mm | 1~3 mm | <1 mm | <3 mm |
| PB粉矿 | 3.96 | 10.06 | 13.06 | 18.14 | 13.96 | 40.83 | 54.79 |
| FMG混合粉矿 | 6.81 | 11.99 | 12.71 | 20.15 | 20.81 | 27.53 | 48.34 |
| 高硅熔剂性褐铁矿(原矿) | | 3.05 | 22.13 | 29.17 | 22.67 | 22.99 | 45.66 |
| 高硅熔剂性褐铁矿(水洗重选后) | | 0.36 | 3.89 | 17.54 | 31.16 | 25.13 | 56.29 |
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试验 编号 | 铁料配置(质量分数)/% | 烧结矿SiO2 含量/% | 烧结矿 碱度 |
| 巴润铁精矿 | PB粉矿 | FMG 混合粉矿 | 高硅熔剂性 褐铁矿(原矿) | 高硅熔剂性褐铁矿 (水洗重选后) |
| 基准 | 35.0 | 50.0 | 15.0 | | | 5.00 | 2.05 |
| 1# | 31.4 | 44.9 | 13.5 | | 10.2 | 5.00 | 2.05 |
| 2# | 31.4 | 44.9 | 13.5 | | 10.2 | 5.00 | 2.05 |
| 3# | 33.8 | 48.3 | 14.5 | 3.4 | | 5.00 | 2.05 |
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试验方案
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试验 编号 | 铁料配置(质量分数)/% | 烧结矿SiO2 含量/% | 烧结矿 碱度 |
| 巴润铁精矿 | PB粉矿 | FMG 混合粉矿 | 高硅熔剂性 褐铁矿(原矿) | 高硅熔剂性褐铁矿 (水洗重选后) |
| 基准 | 35.0 | 50.0 | 15.0 | | | 5.00 | 2.05 |
| 1# | 31.4 | 44.9 | 13.5 | | 10.2 | 5.00 | 2.05 |
| 2# | 31.4 | 44.9 | 13.5 | | 10.2 | 5.00 | 2.05 |
| 3# | 33.8 | 48.3 | 14.5 | 3.4 | | 5.00 | 2.05 |
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| 编号 | 化学成分(质量分数)/% | 烧结矿 碱度 |
| TFe | FeO | CaO | SiO2 | MgO | Al2O3 | F | P | K2O | Na2O |
| 基准 | 55.85 | 8.85 | 10.62 | 5.01 | 1.97 | 1.90 | 0.095 | 0.080 | 0.121 | 0.092 | 2.09 |
| 1# | 56.13 | 8.26 | 10.66 | 5.04 | 2.05 | 1.92 | 0.093 | 0.089 | 0.129 | 0.092 | 2.09 |
| 2# | 56.20 | 8.31 | 10.65 | 5.03 | 2.03 | 1.88 | 0.087 | 0.084 | 0.118 | 0.086 | 2.09 |
| 3# | 56.08 | 8.22 | 10.57 | 4.98 | 2.06 | 1.89 | 0.107 | 0.089 | 0.210 | 0.107 | 2.09 |
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烧结矿的化学成分及碱度
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| 编号 | 化学成分(质量分数)/% | 烧结矿 碱度 |
| TFe | FeO | CaO | SiO2 | MgO | Al2O3 | F | P | K2O | Na2O |
| 基准 | 55.85 | 8.85 | 10.62 | 5.01 | 1.97 | 1.90 | 0.095 | 0.080 | 0.121 | 0.092 | 2.09 |
| 1# | 56.13 | 8.26 | 10.66 | 5.04 | 2.05 | 1.92 | 0.093 | 0.089 | 0.129 | 0.092 | 2.09 |
| 2# | 56.20 | 8.31 | 10.65 | 5.03 | 2.03 | 1.88 | 0.087 | 0.084 | 0.118 | 0.086 | 2.09 |
| 3# | 56.08 | 8.22 | 10.57 | 4.98 | 2.06 | 1.89 | 0.107 | 0.089 | 0.210 | 0.107 | 2.09 |
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| 试验编号 | 水分 /% | 配碳 /% | 干烧成率 /% | 成品率 /% | 利用系数 /(t·m-2·h-1) | 返矿平衡 系数 | 燃耗 /(kg·t-1) | 转鼓 /% | 垂速 /(mm·min-1) |
| 基准 | 7.49 | 4.20 | 90.43 | 72.01 | 1.23 | 0.84 | 64.89 | 68.27 | 16.8 |
| 1# | 7.02 | 4.24 | 89.78 | 71.61 | 1.10 | 0.85 | 65.95 | 66.40 | 15.6 |
| 2# | 7.23 | 4.27 | 89.58 | 71.62 | 1.06 | 0.85 | 66.56 | 67.47 | 15.0 |
| 3# | 7.23 | 4.20 | 90.42 | 71.14 | 1.13 | 0.87 | 65.29 | 68.53 | 15.9 |
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烧结工艺指标的变化
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| 试验编号 | 水分 /% | 配碳 /% | 干烧成率 /% | 成品率 /% | 利用系数 /(t·m-2·h-1) | 返矿平衡 系数 | 燃耗 /(kg·t-1) | 转鼓 /% | 垂速 /(mm·min-1) |
| 基准 | 7.49 | 4.20 | 90.43 | 72.01 | 1.23 | 0.84 | 64.89 | 68.27 | 16.8 |
| 1# | 7.02 | 4.24 | 89.78 | 71.61 | 1.10 | 0.85 | 65.95 | 66.40 | 15.6 |
| 2# | 7.23 | 4.27 | 89.58 | 71.62 | 1.06 | 0.85 | 66.56 | 67.47 | 15.0 |
| 3# | 7.23 | 4.20 | 90.42 | 71.14 | 1.13 | 0.87 | 65.29 | 68.53 | 15.9 |
), ArticleFig(id=1199695890362499761, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199661548819022599, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验编号 | RI /% | RDI+3.15 mm /% | 软融性能 |
| T4/℃ | T10/℃ | T40/℃ | T40-T10/℃ | TS/℃ | TD/℃ | TD-TS/℃ | △Pmax/Pa |
| 基准 | 86.99 | 55.70 | 1 144 | 1 168 | 1 261 | 117 | 1 285 | 1 484 | 199 | 10 036 |
| 2# | 85.51 | 62.70 | 1 150 | 1 178 | 1 274 | 123 | 1 301 | 1 488 | 205 | 10 428 |
| 3# | 92.43 | 61.60 | 1 146 | 1 171 | 1 265 | 119 | 1 290 | 1 472 | 192 | 10 522 |
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烧结矿的冶金性能
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| 试验编号 | RI /% | RDI+3.15 mm /% | 软融性能 |
| T4/℃ | T10/℃ | T40/℃ | T40-T10/℃ | TS/℃ | TD/℃ | TD-TS/℃ | △Pmax/Pa |
| 基准 | 86.99 | 55.70 | 1 144 | 1 168 | 1 261 | 117 | 1 285 | 1 484 | 199 | 10 036 |
| 2# | 85.51 | 62.70 | 1 150 | 1 178 | 1 274 | 123 | 1 301 | 1 488 | 205 | 10 428 |
| 3# | 92.43 | 61.60 | 1 146 | 1 171 | 1 265 | 119 | 1 290 | 1 472 | 192 | 10 522 |
), ArticleFig(id=1199695890677072576, tenantId=1146029695717560320, journalId=1185652524569653253, articleId=1199661548819022599, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 试验编号 | 赤铁矿 | 磁铁矿 | 铁酸钙 | 硅酸二钙 | 橄榄石 |
| 基准 | 7 | 44 | 40 | 0~1 | 8 |
| 2# | 9 | 40 | 39 | 0 | 12 |
| 3# | 9 | 39 | 45 | 0 | 11 |
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矿物组成(体积分数) %
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| 试验编号 | 赤铁矿 | 磁铁矿 | 铁酸钙 | 硅酸二钙 | 橄榄石 |
| 基准 | 7 | 44 | 40 | 0~1 | 8 |
| 2# | 9 | 40 | 39 | 0 | 12 |
| 3# | 9 | 39 | 45 | 0 | 11 |
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