Article(id=1236276108853825666, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236276104999268557, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2025.04.020, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1737043200000, receivedDateStr=2025-01-17, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772680793249, onlineDateStr=2026-03-05, pubDate=1753977600000, pubDateStr=2025-08-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772680793249, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772680793249, creator=13701087609, updateTime=1772680793249, updator=13701087609, issue=Issue{id=1236276104999268557, tenantId=1146029695717560320, journalId=1235980550691926019, year='2025', volume='45', issue='4', pageStart='1', pageEnd='200', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1772680792331, creator=13701087609, updateTime=1772681498687, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236279067746562719, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236276104999268557, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236279067746562720, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236276104999268557, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=109, endPage=114, ext={EN=ArticleExt(id=1236276112708391170, articleId=1236276108853825666, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Optimization and Upgrading of Grinding and Classification Process in Luzhong Concentrator, columnId=1236276106932842717, journalTitle=Mining and Metallurgical Engineering, columnName=MINERAL PROCESSING, runingTitle=null, highlight=null, articleAbstract=
To address the problem in the existing grinding and classification system in Luzhong concentrator, the 5# grinding and classification system in the concentrator was optimized and upgraded by the following measures, including optimizing the working conditions of the autogenous mill, adding pre-concentration process with magnetic pulley for the oversized material of the drum screen and wet pre-concentration process before the ball mill, replacing the spiral classifier with a hydrocyclone group. Those measures can not only increase the actual processing capacity of 5# system to 232 t/h from 186 t/h, but also discard waste ore grading 7.05% TFe with a yield of 5.40%, presenting an iron loss rate of 1.25%. Meanwhile, +0.5 mm coarse sand can be produced with a yield of 12.63% and an iron loss rate of 3.86%. It is shown that in the first-stage overflow of the hydrocyclone, 44.09% product grading 53.00% TFe is yielded, indicating a good effect by optimization and upgrading measures.
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针对鲁中选矿厂原磨矿分级系统存在的问题,对该厂5#系列磨矿分级系统进行优化改造。通过优化自磨机运行工况、增设圆筒筛筛上产品磁滑轮预选和球磨机磨前湿式预选、更换螺旋分级机为水力旋流器组等措施,改造后5#系列实际处理量由186 t/h提升至232 t/h,可提前抛出产率5.40%、TFe品位7.05%的废石,铁损失率1.25%,同时可产出产率12.63%的+0.5 mm粒级粗砂,铁损失率3.86%,水力旋流器一段溢流产率44.09%、TFe品位53.00%,优化改造效果明显。
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李孝龙(1983—),男,山东新泰人,工程师,主要从事选矿工艺技术及管理工作。E-mail:lixiaolongsql@163.com
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李孝龙(1983—),男,山东新泰人,工程师,主要从事选矿工艺技术及管理工作。E-mail:lixiaolongsql@163.com
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42(2): 46-50., articleTitle=Influence of circulating load in ball milling-fine screening loop on size distribution of tungsten ore grinding product, refAbstract=null), Reference(id=1236348230930321901, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, doi=null, pmid=null, pmcid=null, year=2023, volume=39, issue=1, pageStart=160, pageEnd=162, url=null, language=null, rfNumber=[5], rfOrder=8, authorNames=陈少学, 储荣春, 于强, journalName=现代矿业, refType=null, unstructuredReference=陈少学, 储荣春, 于强. 鲁中某铁矿加工与砂石制备混用工艺实践[J].
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39(1): 160-162., articleTitle=鲁中某铁矿加工与砂石制备混用工艺实践, refAbstract=null), Reference(id=1236348231047762422, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, doi=null, pmid=null, pmcid=null, year=2023, volume=39, issue=1, pageStart=160, pageEnd=162, url=null, language=null, rfNumber=[5], rfOrder=9, authorNames=CHEN Shaoxue, CHU Rongchun, YU Qiang, journalName=Modern Mining, refType=null, unstructuredReference=
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39(1): 160-162., articleTitle=Mixed process practice of processing and sand preparation of an iron ore in central Shandong Province, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1236348220733968996, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, xref=1., ext=[AuthorCompanyExt(id=1236348220746551910, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, companyId=1236348220733968996, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Luzhong Mining Co., Ltd., Jinan 271113, Shandong, China), AuthorCompanyExt(id=1236348220754940519, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, companyId=1236348220733968996, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.鲁中矿业有限公司,山东 济南 271113)]), AuthorCompany(id=1236348220914324082, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, xref=2., ext=[AuthorCompanyExt(id=1236348220935295604, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, companyId=1236348220914324082, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Changsha Research Institute of Mining and Metallurgy Co., Ltd., Changsha 410012, Hunan, China), AuthorCompanyExt(id=1236348220956267125, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, companyId=1236348220914324082, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.长沙矿冶研究院有限责任公司,湖南 长沙 410012)])], figs=[ArticleFig(id=1236348225137987642, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Fig.1, caption=
Existing grinding and classification flowchart in concentrator, figureFileSmall=PfYoZCYull0XGKOGkypVLA==, figureFileBig=5lGLnSUMLnh99QNKjPAhfw==, tableContent=null), ArticleFig(id=1236348225293176911, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=图1, caption=
选矿厂原磨矿分级工艺流程, figureFileSmall=PfYoZCYull0XGKOGkypVLA==, figureFileBig=5lGLnSUMLnh99QNKjPAhfw==, tableContent=null), ArticleFig(id=1236348225414811742, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Fig.2, caption=
Flow diagram of 5# grinding and classification process after upgrading with mass balance, figureFileSmall=u1jM0Pa0VCjZdl453baR+w==, figureFileBig=ALQ6WF42CvP9sbV2KidoDw==, tableContent=null), ArticleFig(id=1236348225544835172, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=图2, caption=
改造后5#系列磨矿分级工艺数质量流程, figureFileSmall=u1jM0Pa0VCjZdl453baR+w==, figureFileBig=ALQ6WF42CvP9sbV2KidoDw==, tableContent=null), ArticleFig(id=1236348225687441523, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 1, caption=
Multi-elemental analysis of sample
, figureFileSmall=null, figureFileBig=null, tableContent=
| TFe | FeO | Fe2O3 | Cu | TiO2 | Co | SiO2 | Al2O3 | CaO |
| 33.69 | 7.62 | 40.32 | 0.058 | 0.27 | 0.021 | 18.23 | 6.06 | 8.44 |
| MgO | MnO | K2O | Na2O | P | S | C | 烧失 | |
| 8.03 | 0.43 | 0.47 | 0.53 | 0.040 | 0.15 | 1.35 | 8.72 | |
), ArticleFig(id=1236348225838436475, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表1, caption=
试样化学多元素分析结果(质量分数)
, figureFileSmall=null, figureFileBig=null, tableContent=
| TFe | FeO | Fe2O3 | Cu | TiO2 | Co | SiO2 | Al2O3 | CaO |
| 33.69 | 7.62 | 40.32 | 0.058 | 0.27 | 0.021 | 18.23 | 6.06 | 8.44 |
| MgO | MnO | K2O | Na2O | P | S | C | 烧失 | |
| 8.03 | 0.43 | 0.47 | 0.53 | 0.040 | 0.15 | 1.35 | 8.72 | |
), ArticleFig(id=1236348226081706122, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 2, caption=
Fe phase analysis results of sample
, figureFileSmall=null, figureFileBig=null, tableContent=
| 铁物相 | 含量(质量分数)/% | 分布率/% |
|---|
| 磁铁矿中铁 | 15.88 | 47.12 |
| 假象赤铁矿中铁 | 3.48 | 10.36 |
| 赤褐铁矿中铁 | 13.36 | 39.64 |
| 碳酸盐中铁 | 0.16 | 0.47 |
| 硅酸盐中铁 | 0.71 | 2.11 |
| 硫化物中铁 | 0.10 | 0.30 |
| 合计 | 33.69 | 100.00 |
), ArticleFig(id=1236348226207535254, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表2, caption=
试样铁物相分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 铁物相 | 含量(质量分数)/% | 分布率/% |
|---|
| 磁铁矿中铁 | 15.88 | 47.12 |
| 假象赤铁矿中铁 | 3.48 | 10.36 |
| 赤褐铁矿中铁 | 13.36 | 39.64 |
| 碳酸盐中铁 | 0.16 | 0.47 |
| 硅酸盐中铁 | 0.71 | 2.11 |
| 硫化物中铁 | 0.10 | 0.30 |
| 合计 | 33.69 | 100.00 |
), ArticleFig(id=1236348226371113120, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 3, caption=
Test results of pre-concentration by magnetic pulley for tailings discarding
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 产率/% | TFe品位/% | 回收率/% |
|---|
| 精矿 | 66.98 | 48.98 | 93.57 |
| 尾矿 | 33.02 | 6.83 | 6.43 |
| 给矿 | 100.00 | 35.06 | 100.00 |
), ArticleFig(id=1236348226543079596, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表3, caption=
磁滑轮预选抛尾试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 产率/% | TFe品位/% | 回收率/% |
|---|
| 精矿 | 66.98 | 48.98 | 93.57 |
| 尾矿 | 33.02 | 6.83 | 6.43 |
| 给矿 | 100.00 | 35.06 | 100.00 |
), ArticleFig(id=1236348226647937206, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 4, caption=
Verification test result of pre-concentration concentrate with magnetic tube
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 产率/% | TFe品位/% | 回收率/% |
|---|
| 精矿 | 63.86 | 64.38 | 84.66 |
| 尾矿 | 36.14 | 20.61 | 15.34 |
| 给矿 | 100.00 | 48.56 | 100.00 |
), ArticleFig(id=1236348226765377730, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表4, caption=
磁滑轮精矿磁选管验证试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 产率/% | TFe品位/% | 回收率/% |
|---|
| 精矿 | 63.86 | 64.38 | 84.66 |
| 尾矿 | 36.14 | 20.61 | 15.34 |
| 给矿 | 100.00 | 48.56 | 100.00 |
), ArticleFig(id=1236348226899595466, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 5, caption=
Effect of linear velocity of magnetic pulley on pre-concentration for tailings discarding
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线速度/(m·s-1) | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| TFe | mFe | Cu | TFe | mFe | Cu |
|---|
| 0.67 | 精矿 | 79.84 | 44.83 | 34.18 | 0.023 | 96.13 | 99.07 | 71.67 |
| 尾矿 | 20.16 | 7.15 | 1.27 | 0.036 | 3.87 | 0.93 | 28.33 |
| 给矿 | 100.00 | 37.23 | 27.54 | 0.026 | 100.00 | 100.00 | 100.00 |
| 0.97 | 精矿 | 73.72 | 47.63 | 37.17 | 0.026 | 94.24 | 98.57 | 73.72 |
| 尾矿 | 26.28 | 8.16 | 1.51 | 0.026 | 5.76 | 1.43 | 26.28 |
| 给矿 | 100.00 | 37.26 | 27.80 | 0.026 | 100.00 | 100.00 | 100.00 |
| 1.31 | 精矿 | 65.45 | 53.01 | 41.38 | 0.023 | 91.89 | 98.05 | 58.26 |
| 尾矿 | 34.55 | 8.86 | 1.56 | 0.029 | 8.11 | 1.95 | 41.74 |
| 给矿 | 100.00 | 37.75 | 27.62 | 0.025 | 100.00 | 100.00 | 100.00 |
), ArticleFig(id=1236348227058979024, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表5, caption=
磁滑轮线速度对预选抛尾效果的影响
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线速度/(m·s-1) | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| TFe | mFe | Cu | TFe | mFe | Cu |
|---|
| 0.67 | 精矿 | 79.84 | 44.83 | 34.18 | 0.023 | 96.13 | 99.07 | 71.67 |
| 尾矿 | 20.16 | 7.15 | 1.27 | 0.036 | 3.87 | 0.93 | 28.33 |
| 给矿 | 100.00 | 37.23 | 27.54 | 0.026 | 100.00 | 100.00 | 100.00 |
| 0.97 | 精矿 | 73.72 | 47.63 | 37.17 | 0.026 | 94.24 | 98.57 | 73.72 |
| 尾矿 | 26.28 | 8.16 | 1.51 | 0.026 | 5.76 | 1.43 | 26.28 |
| 给矿 | 100.00 | 37.26 | 27.80 | 0.026 | 100.00 | 100.00 | 100.00 |
| 1.31 | 精矿 | 65.45 | 53.01 | 41.38 | 0.023 | 91.89 | 98.05 | 58.26 |
| 尾矿 | 34.55 | 8.86 | 1.56 | 0.029 | 8.11 | 1.95 | 41.74 |
| 给矿 | 100.00 | 37.75 | 27.62 | 0.025 | 100.00 | 100.00 | 100.00 |
), ArticleFig(id=1236348227193196759, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 6, caption=
Magnetic pulley test results with different moisture content
, figureFileSmall=null, figureFileBig=null, tableContent=
| 含水率/% | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| TFe | mFe | TFe | mFe |
|---|
| 3.0 | 精矿 | 67.35 | 52.28 | 40.30 | 93.52 | 98.34 |
| 尾矿 | 32.65 | 7.47 | 1.40 | 6.48 | 1.66 |
| 给矿 | 100.00 | 37.65 | 27.60 | 100.00 | 100.00 |
| 6.0 | 精矿 | 73.11 | 48.96 | 37.18 | 94.84 | 98.69 |
| 尾矿 | 26.89 | 7.24 | 1.34 | 5.16 | 1.31 |
| 给矿 | 100.00 | 37.74 | 27.54 | 100.00 | 100.00 |
| 9.0 | 精矿 | 75.57 | 47.71 | 35.84 | 95.45 | 98.80 |
| 尾矿 | 24.43 | 7.03 | 1.35 | 4.55 | 1.20 |
| 给矿 | 100.00 | 37.77 | 27.41 | 100.00 | 100.00 |
), ArticleFig(id=1236348227339997407, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表6, caption=
不同含水率磁滑轮试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 含水率/% | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| TFe | mFe | TFe | mFe |
|---|
| 3.0 | 精矿 | 67.35 | 52.28 | 40.30 | 93.52 | 98.34 |
| 尾矿 | 32.65 | 7.47 | 1.40 | 6.48 | 1.66 |
| 给矿 | 100.00 | 37.65 | 27.60 | 100.00 | 100.00 |
| 6.0 | 精矿 | 73.11 | 48.96 | 37.18 | 94.84 | 98.69 |
| 尾矿 | 26.89 | 7.24 | 1.34 | 5.16 | 1.31 |
| 给矿 | 100.00 | 37.74 | 27.54 | 100.00 | 100.00 |
| 9.0 | 精矿 | 75.57 | 47.71 | 35.84 | 95.45 | 98.80 |
| 尾矿 | 24.43 | 7.03 | 1.35 | 4.55 | 1.20 |
| 给矿 | 100.00 | 37.77 | 27.41 | 100.00 | 100.00 |
), ArticleFig(id=1236348227465826540, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 7, caption=
Wet pre-concentration test results of undersize of drum screen
, figureFileSmall=null, figureFileBig=null, tableContent=
| 磁场强度/T | 试验编号 | 产品名称 | 产率/% | TFe品位/% | 回收率/% |
|---|
| 0.55 | 1 | 精矿1 | 30.55 | 56.62 | 71.01 |
| 尾矿1 | 69.45 | 10.17 | 28.99 |
| 给矿1 | 100.00 | 24.36 | 100.00 |
| 2 | 精矿2 | 30.76 | 56.29 | 70.81 |
| 尾矿2 | 69.24 | 10.31 | 29.19 |
| 给矿2 | 100.00 | 24.45 | 100.00 |
| 0.65 | 3 | 精矿3 | 32.84 | 55.54 | 74.98 |
| 尾矿3 | 67.16 | 9.06 | 25.02 |
| 给矿3 | 100.00 | 24.32 | 100.00 |
| 4 | 精矿4 | 32.54 | 55.98 | 74.59 |
| 尾矿4 | 67.46 | 9.20 | 25.41 |
| 给矿4 | 100.00 | 24.42 | 100.00 |
), ArticleFig(id=1236348227553906935, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表7, caption=
圆筒筛筛下产品湿式预选试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 磁场强度/T | 试验编号 | 产品名称 | 产率/% | TFe品位/% | 回收率/% |
|---|
| 0.55 | 1 | 精矿1 | 30.55 | 56.62 | 71.01 |
| 尾矿1 | 69.45 | 10.17 | 28.99 |
| 给矿1 | 100.00 | 24.36 | 100.00 |
| 2 | 精矿2 | 30.76 | 56.29 | 70.81 |
| 尾矿2 | 69.24 | 10.31 | 29.19 |
| 给矿2 | 100.00 | 24.45 | 100.00 |
| 0.65 | 3 | 精矿3 | 32.84 | 55.54 | 74.98 |
| 尾矿3 | 67.16 | 9.06 | 25.02 |
| 给矿3 | 100.00 | 24.32 | 100.00 |
| 4 | 精矿4 | 32.54 | 55.98 | 74.59 |
| 尾矿4 | 67.46 | 9.20 | 25.41 |
| 给矿4 | 100.00 | 24.42 | 100.00 |
), ArticleFig(id=1236348227683930366, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 8, caption=
Particle size distribution of wet pre-concentration tailings
, figureFileSmall=null, figureFileBig=null, tableContent=
| 磁场强度/T | 产品名称 | 粒级/mm | 产率/% | TFe品位/% | 分布率/% |
|---|
| 0.55 | 尾矿1 | +2 | 10.07 | 6.20 | 6.12 |
| -2+1 | 3.81 | 5.85 | 2.19 |
| -1 | 86.12 | 10.86 | 91.69 |
| 合计 | 100.00 | 10.20 | 100.00 |
| 尾矿2 | +2 | 11.88 | 6.41 | 7.43 |
| -2+1 | 4.04 | 7.11 | 2.80 |
| -1 | 84.08 | 10.95 | 89.77 |
| 合计 | 100.00 | 10.26 | 100.00 |
| 0.65 | 尾矿3 | +2 | 9.83 | 4.81 | 5.22 |
| -2+1 | 3.89 | 6.20 | 2.66 |
| -1 | 86.28 | 9.68 | 92.12 |
| 合计 | 100.00 | 9.07 | 100.00 |
| 尾矿4 | +2 | 10.89 | 4.96 | 5.85 |
| -2+1 | 3.86 | 7.54 | 3.15 |
| -1 | 85.25 | 9.85 | 90.99 |
| 合计 | 100.00 | 9.23 | 100.00 |
), ArticleFig(id=1236348227805565193, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表8, caption=
湿式预选尾矿粒度分布情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 磁场强度/T | 产品名称 | 粒级/mm | 产率/% | TFe品位/% | 分布率/% |
|---|
| 0.55 | 尾矿1 | +2 | 10.07 | 6.20 | 6.12 |
| -2+1 | 3.81 | 5.85 | 2.19 |
| -1 | 86.12 | 10.86 | 91.69 |
| 合计 | 100.00 | 10.20 | 100.00 |
| 尾矿2 | +2 | 11.88 | 6.41 | 7.43 |
| -2+1 | 4.04 | 7.11 | 2.80 |
| -1 | 84.08 | 10.95 | 89.77 |
| 合计 | 100.00 | 10.26 | 100.00 |
| 0.65 | 尾矿3 | +2 | 9.83 | 4.81 | 5.22 |
| -2+1 | 3.89 | 6.20 | 2.66 |
| -1 | 86.28 | 9.68 | 92.12 |
| 合计 | 100.00 | 9.07 | 100.00 |
| 尾矿4 | +2 | 10.89 | 4.96 | 5.85 |
| -2+1 | 3.86 | 7.54 | 3.15 |
| -1 | 85.25 | 9.85 | 90.99 |
| 合计 | 100.00 | 9.23 | 100.00 |
), ArticleFig(id=1236348227910422799, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 9, caption=
Semi-industrial test results of wet pre-concentration of undersize of drum screen
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 产率/% | TFe品位/% | 回收率/% | 浓度/% |
|---|
| 精矿 | 52.09 | 58.93 | 84.21 | 53.92 |
| 尾矿 | 47.91 | 12.01 | 15.79 | 25.75 |
| 给矿 | 100.00 | 36.45 | 100.00 | 33.88 |
), ArticleFig(id=1236348228061417756, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表9, caption=
圆筒筛筛下产品湿式预选半工业试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 产率/% | TFe品位/% | 回收率/% | 浓度/% |
|---|
| 精矿 | 52.09 | 58.93 | 84.21 | 53.92 |
| 尾矿 | 47.91 | 12.01 | 15.79 | 25.75 |
| 给矿 | 100.00 | 36.45 | 100.00 | 33.88 |
), ArticleFig(id=1236348228204024104, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 10, caption=
Particle size distribution of wet pre-concentration pruducts from semi-industrial test
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| 产品名称 | 粒级/mm | 产率/% | TFe品位/% | 分布率/% |
|---|
| 精矿 | +5 | 9.45 | 52.79 | 8.47 |
| -5+1 | 5.39 | 51.11 | 4.68 |
| -1 | 85.16 | 60.05 | 86.85 |
| 合计 | 100.00 | 58.88 | 100.00 |
| 尾矿 | +5 | 13.43 | 4.02 | 4.41 |
| -5+1 | 9.08 | 7.90 | 5.85 |
| -1+0.5 | 7.96 | 12.57 | 8.16 |
| -0.5 | 69.53 | 14.38 | 81.58 |
| 合计 | 100.00 | 12.26 | 100.00 |
| 给矿 | +5 | 8.57 | 36.31 | 8.72 |
| -5+1 | 12.59 | 35.82 | 12.63 |
| -1 | 78.84 | 35.61 | 78.65 |
| 合计 | 100.00 | 35.70 | 100.00 |
), ArticleFig(id=1236348228342436146, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表10, caption=
湿式预选半工业试验产品粒度分布情况
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| 产品名称 | 粒级/mm | 产率/% | TFe品位/% | 分布率/% |
|---|
| 精矿 | +5 | 9.45 | 52.79 | 8.47 |
| -5+1 | 5.39 | 51.11 | 4.68 |
| -1 | 85.16 | 60.05 | 86.85 |
| 合计 | 100.00 | 58.88 | 100.00 |
| 尾矿 | +5 | 13.43 | 4.02 | 4.41 |
| -5+1 | 9.08 | 7.90 | 5.85 |
| -1+0.5 | 7.96 | 12.57 | 8.16 |
| -0.5 | 69.53 | 14.38 | 81.58 |
| 合计 | 100.00 | 12.26 | 100.00 |
| 给矿 | +5 | 8.57 | 36.31 | 8.72 |
| -5+1 | 12.59 | 35.82 | 12.63 |
| -1 | 78.84 | 35.61 | 78.65 |
| 合计 | 100.00 | 35.70 | 100.00 |
), ArticleFig(id=1236348228543762751, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 11, caption=
Re-grinding and re-concentration test results of+0.5 mm tailings from wet pre-concentration
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| 产品名称 | 作业产率/% | TFe品位/% | 作业回收率/% |
|---|
| 精矿 | 21.34 | 22.62 | 66.65 |
| 尾矿 | 78.66 | 3.07 | 33.35 |
| 给矿 | 100.00 | 7.24 | 100.00 |
), ArticleFig(id=1236348228715729230, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表11, caption=
+0.5 mm粒级预选尾矿再磨-再选试验结果
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| 产品名称 | 作业产率/% | TFe品位/% | 作业回收率/% |
|---|
| 精矿 | 21.34 | 22.62 | 66.65 |
| 尾矿 | 78.66 | 3.07 | 33.35 |
| 给矿 | 100.00 | 7.24 | 100.00 |
), ArticleFig(id=1236348228854141278, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 12, caption=
Investigation of 5# grinding and classification system after upgrading
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | TFe品位/% |
|---|
| 9月11日 | 9月12日 | 平均值 |
|---|
| 给矿 | 30.34 | 30.69 | 30.52 |
| 圆筒筛筛上产品 | 42.37 | 40.80 | 41.59 |
| 磁滑轮预选精矿 | 47.25 | 42.20 | 44.73 |
| 磁滑轮预选尾矿 | 5.89 | 8.20 | 7.05 |
| 磨前预选给矿 | 33.30 | 30.42 | 31.86 |
| 磨前预选精矿 | 55.45 | 52.01 | 53.73 |
| 磨前预选尾矿 | 13.09 | 13.72 | 13.41 |
| 直线筛筛上产品 | 7.85 | 10.80 | 9.33 |
| 直线筛筛下产品 | 14.58 | 14.96 | 14.77 |
| 球磨机排矿 | 60.15 | 57.76 | 58.96 |
| 旋流器分级溢流 | 54.96 | 51.03 | 53.00 |
| 旋流器沉砂 | 59.87 | 57.27 | 58.57 |
), ArticleFig(id=1236348229026107753, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表12, caption=
改造后5#系列磨矿分级工艺流程考查结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | TFe品位/% |
|---|
| 9月11日 | 9月12日 | 平均值 |
|---|
| 给矿 | 30.34 | 30.69 | 30.52 |
| 圆筒筛筛上产品 | 42.37 | 40.80 | 41.59 |
| 磁滑轮预选精矿 | 47.25 | 42.20 | 44.73 |
| 磁滑轮预选尾矿 | 5.89 | 8.20 | 7.05 |
| 磨前预选给矿 | 33.30 | 30.42 | 31.86 |
| 磨前预选精矿 | 55.45 | 52.01 | 53.73 |
| 磨前预选尾矿 | 13.09 | 13.72 | 13.41 |
| 直线筛筛上产品 | 7.85 | 10.80 | 9.33 |
| 直线筛筛下产品 | 14.58 | 14.96 | 14.77 |
| 球磨机排矿 | 60.15 | 57.76 | 58.96 |
| 旋流器分级溢流 | 54.96 | 51.03 | 53.00 |
| 旋流器沉砂 | 59.87 | 57.27 | 58.57 |
), ArticleFig(id=1236348229151936883, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 13, caption=
First-stage grinding indicators of 5# grinding and classification system after upgrading
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 矿浆浓度(质量分数)/% | -0.074 mm粒级产率/% | 0.074 mm分级效率/% |
|---|
| 9月11日 | 9月12日 | 平均值 | 9月11日 | 9月12日 | 平均值 | 质效率 | 量效率 |
|---|
| 球磨机排矿 | 65.53 | 67.71 | 66.62 | 41.70 | 47.50 | 44.60 | | |
| 水力旋流器溢流 | 25.05 | 30.20 | 27.63 | 78.32 | 73.35 | 75.84 | 56.51 | 76.01 |
| 水力旋流器沉砂 | 81.86 | 82.62 | 82.24 | 21.33 | 17.37 | 19.35 | | |
), ArticleFig(id=1236348229260988799, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表13, caption=
改造后5#系列一段磨矿分级工艺指标
, figureFileSmall=null, figureFileBig=null, tableContent=
| 产品名称 | 矿浆浓度(质量分数)/% | -0.074 mm粒级产率/% | 0.074 mm分级效率/% |
|---|
| 9月11日 | 9月12日 | 平均值 | 9月11日 | 9月12日 | 平均值 | 质效率 | 量效率 |
|---|
| 球磨机排矿 | 65.53 | 67.71 | 66.62 | 41.70 | 47.50 | 44.60 | | |
| 水力旋流器溢流 | 25.05 | 30.20 | 27.63 | 78.32 | 73.35 | 75.84 | 56.51 | 76.01 |
| 水力旋流器沉砂 | 81.86 | 82.62 | 82.24 | 21.33 | 17.37 | 19.35 | | |
), ArticleFig(id=1236348229365846413, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=EN, label=Table 14, caption=
Comparison of technical indicators of 5# grinding and classification system before and after upgrading
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶段 | 处理量/(t·h-1) | 一段磨矿分级溢流粒级产率/% | 一段溢流TFe品位/% |
|---|
| 设计值 | 实际值 | +0.2 mm | -0.074 mm | -0.019 mm |
|---|
| 改造前 | 198 | 186 | 14.78 | 58.31 | 29.46 | 33.70 |
| 改造后 | 230 | 232 | 5.69 | 75.84 | 15.52 | 53.00 |
), ArticleFig(id=1236348229466509713, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1236276108853825666, language=CN, label=表14, caption=
改造前后5#系列磨矿分级系统技术指标对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶段 | 处理量/(t·h-1) | 一段磨矿分级溢流粒级产率/% | 一段溢流TFe品位/% |
|---|
| 设计值 | 实际值 | +0.2 mm | -0.074 mm | -0.019 mm |
|---|
| 改造前 | 198 | 186 | 14.78 | 58.31 | 29.46 | 33.70 |
| 改造后 | 230 | 232 | 5.69 | 75.84 | 15.52 | 53.00 |
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