Article(id=1322594529736245673, tenantId=1146029695717560320, journalId=1225396423026438145, issueId=1322594503278580030, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1709654400000, receivedDateStr=2024-03-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793260708507, onlineDateStr=2026-10-29, pubDate=1737734400000, pubDateStr=2025-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793260708507, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793260708507, creator=13701087609, updateTime=1793260708507, updator=13701087609, issue=Issue{id=1322594503278580030, tenantId=1146029695717560320, journalId=1225396423026438145, year='2025', volume='45', issue='1', pageStart='1', pageEnd='276', issueExtLink='null', onlineDate='null', pubDate='1737734400000', pubDateStr='2025-01-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793260702199, creator='13701087609', updateTime=1793260702199, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=262, endPage=268, ext={EN=ArticleExt(id=1322594529912406442, articleId=1322594529736245673, tenantId=1146029695717560320, journalId=1225396423026438145, language=EN, title=Research on the Effect of Composite Dry Separation Technology on Iron Removal Efficiency of Zhundong Coal, columnId=null, journalTitle=Mining Research and Development, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Due to the unique coal forming environment, the contents of alkali metals and alkaline earth metals in Zhundong coal are high, and some mining areas are accompanied by problems such as high iron and high calcium. These elements can cause boiler slagging and pollution during coal combustion, greatly limiting the development and utilization of Zhundong coal. In order to achieve efficient and clean utilization of Zhundong coal and fundamentally reduce the content of alkali metals and iron in Zhundong coal, it has been demonstrated that Fe2O3 in coal ash mainly comes from associated minerals of coal. Therefore, by sorting and reducing the content of coal ash, iron elements in coal can be removed to a certain extent. Several mature sorting technologies were compared and analyzed, it was found that due to the brittle nature of coal in the West Black Mountain mining area of Zhundong coalfield and its susceptibility to water, and it is difficult to improve its quality and utilization through wet sorting technology. The cost of magnetic separation technology equipment is high and the feeding particle size is small, which not only increases the crushing cost, but also doesn't conform to the actual production and sales situation of coal mines. The profit level and production of the composite dry sorting machine are relatively high, which meets the actual production needs of coal mines. It is recommended to use the the composite dry separation technology to improve the quality and reduce iron content of raw coal in the mining area. The composite dry separation technology can reduce about 30% of Fe2O3 of the raw coal ash in the research area, and the sorted clean coal can be subjected to powdering treatment to reduce the iron content in the clean coal to below 20%, thereby meeting the market demand.
, authors=Fenglan MA
1, 2, Sai XIONG
1, Peng WANG
1, Zening CHENG
1, Tingting WANG
1, authorsList=Fenglan MA, Sai XIONG, Peng WANG, Zening CHENG, Tingting WANG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322594530919039411, articleId=1322594529736245673, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=复合式干法分选技术对准东煤除铁效率的影响研究, columnId=1226462297560892399, journalTitle=矿业研究与开发, columnName=选矿与资源综合利用, runingTitle=null, highlight=null, articleAbstract=
受独特的成煤环境影响,准东煤中碱金属、碱土金属元素含量高,部分矿区伴有高铁、高钙等问题,这些元素在煤的燃烧过程中会导致锅炉结渣沾污,极大限制了准东煤的开发利用。为了实现准东煤的高效清洁利用,从根本上减少准东煤中碱金属以及铁的含量,通过论证发现,煤灰中Fe2O3主要来源于煤的伴生矿物,因此通过分选降低煤灰含量,可以在一定程度上脱除煤中铁元素。对现有较为成熟的几种分选技术进行了对比分析,受制于准东煤田西黑山矿区煤质较脆,遇水易碎的特点,难以通过湿法分选技术对其进行提质利用;磁选技术设备成本高且入料粒度小,不仅增加破碎成本,也不符合煤矿实际生产销售情况;复合式干选机利润水平、产量较高,符合煤矿实际生产需求,推荐选用复合式干选机分选技术对矿区原煤提质降铁。复合式干选机分选技术可以降低研究区原煤灰中约30%的Fe2O3,将分选后的精煤进行脱粉处理,可将精煤中的铁元素含量降至20%以下,从而满足市场需求。
, authors=马风兰
1, 2, 熊赛
1, 王鹏
1, 程泽宁
1, 王婷婷
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1, 2, address=
1.Xinjiang Tianchi Energy Co., Ltd., Changji Hui Autonomous Prefecture, Xinjiang 831799, China
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1, 2, address=
1.新疆天池能源有限责任公司,新疆 昌吉回族自治州 831799
2.新疆维吾尔自治区政府投资项目评审中心,新疆 乌鲁木齐 830002, bio={"content":"
马风兰(1987—),女,新疆昌吉人,博士,高级工程师,主要从事准东煤分选降铁提质等方面的研究。E-mail:Sophiezju@163.com
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马风兰(1987—),女,新疆昌吉人,博士,高级工程师,主要从事准东煤分选降铁提质等方面的研究。E-mail:Sophiezju@163.com
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Comparison of sorting technologies for different coal seams in the research area, figureFileSmall=u2w+/2fCDJk9t1dLXliXyQ==, figureFileBig=zpnwqdmI4ZoCKsW4Do/TPQ==, tableContent=null), ArticleFig(id=1322594535545356769, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594529736245673, language=CN, label=图2, caption=
研究区不同煤层分选技术对比, figureFileSmall=u2w+/2fCDJk9t1dLXliXyQ==, figureFileBig=zpnwqdmI4ZoCKsW4Do/TPQ==, tableContent=null), ArticleFig(id=1322594535625048546, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594529736245673, language=EN, label=Fig.3, caption=
Sample of 50−100 mm raw coal from C3 seam after floating and sinking, figureFileSmall=tuQ7SdZTu9ua1wqZzkcmaA==, figureFileBig=/Yh1+qfkoexIXWXqYhBtCw==, tableContent=null), ArticleFig(id=1322594535692157411, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594529736245673, language=CN, label=图3, caption=
C3 煤层50~100 mm原煤浮沉后样品, figureFileSmall=tuQ7SdZTu9ua1wqZzkcmaA==, figureFileBig=/Yh1+qfkoexIXWXqYhBtCw==, tableContent=null), ArticleFig(id=1322594535771849188, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594529736245673, language=EN, label=Fig.4, caption=
Magnetic separation test results of coal in the research area, figureFileSmall=2ybRXRahnkPrpAet28YfBQ==, figureFileBig=MpKdW4M6idTa28BFmo8ITA==, tableContent=null), ArticleFig(id=1322594535851540965, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594529736245673, language=CN, label=图4, caption=
研究区煤磁选测试结果, figureFileSmall=2ybRXRahnkPrpAet28YfBQ==, figureFileBig=MpKdW4M6idTa28BFmo8ITA==, tableContent=null), ArticleFig(id=1322594535927038438, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594529736245673, language=EN, label=Table 1, caption=
Test results of raw coal floating and sinking
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度级/(g/cm3) | C1 | C2 | C3 | C4 |
|---|
| 占比/% | 灰分/% | Fe2O3/% | 占比/% | 灰分/% | Fe2O3/% | 占比/% | 灰分/% | Fe2O3/% | 占比/% | 灰分/% | Fe2O3/% |
|---|
| <1.20 | 0.480 | 3.43 | 4.06 | 1.260 | 2.83 | 6.05 | 0.268 | 3.94 | 4.36 | 0.408 | 3.95 | 0.56 |
| [1.20 1.25) | 9.445 | 4.12 | 8.14 | 20.955 | 3.69 | 8.33 | 3.488 | 4.42 | 18.44 | 5.445 | 4.06 | 11.87 |
| [1.25 1.30) | 53.830 | 4.22 | 8.62 | 51.330 | 4.61 | 11.07 | 50.980 | 5.33 | 22.83 | 42.843 | 4.09 | 15.91 |
| [1.30 1.35) | 28.820 | 5.33 | 13.40 | 12.170 | 3.95 | 12.24 | 19.664 | 6.13 | 23.89 | 36.803 | 4.44 | 15.88 |
| [1.35 1.40) | 4.660 | 8.64 | 21.54 | 3.530 | 7.23 | 15.52 | 8.864 | 7.19 | 24.51 | 7.786 | 6.48 | 19.22 |
| [1.40 1.45) | 1.395 | 9.34 | 22.59 | 2.760 | 9.29 | 16.81 | 4.624 | 12.58 | 26.80 | 3.791 | 8.50 | 32.17 |
| [1.45 1.50) | 0.460 | 9.64 | 23.85 | 3.660 | 18.98 | 26.80 | 4.744 | 18.10 | 28.84 | 0.000 | 0.00 | 0.00 |
| [1.50 1.80] | 0.070 | 16.83 | 41.15 | 2.145 | 31.48 | 31.03 | 3.994 | 29.15 | 41.06 | 0.663 | 12.65 | 35.95 |
| >1.80 | 0.840 | 50.77 | 53.90 | 2.190 | 48.49 | 44.79 | 3.374 | 57.67 | 67.53 | 2.261 | 50.43 | 56.64 |
| 合计 | 100.000 | 5.15 | 14.86 | 100.000 | 6.58 | 20.37 | 100.000 | 8.93 | 34.02 | 100.000 | 5.62 | 25.54 |
), ArticleFig(id=1322594536019313127, tenantId=1146029695717560320, journalId=1225396423026438145, articleId=1322594529736245673, language=CN, label=表1, caption=
原煤浮沉试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 密度级/(g/cm3) | C1 | C2 | C3 | C4 |
|---|
| 占比/% | 灰分/% | Fe2O3/% | 占比/% | 灰分/% | Fe2O3/% | 占比/% | 灰分/% | Fe2O3/% | 占比/% | 灰分/% | Fe2O3/% |
|---|
| <1.20 | 0.480 | 3.43 | 4.06 | 1.260 | 2.83 | 6.05 | 0.268 | 3.94 | 4.36 | 0.408 | 3.95 | 0.56 |
| [1.20 1.25) | 9.445 | 4.12 | 8.14 | 20.955 | 3.69 | 8.33 | 3.488 | 4.42 | 18.44 | 5.445 | 4.06 | 11.87 |
| [1.25 1.30) | 53.830 | 4.22 | 8.62 | 51.330 | 4.61 | 11.07 | 50.980 | 5.33 | 22.83 | 42.843 | 4.09 | 15.91 |
| [1.30 1.35) | 28.820 | 5.33 | 13.40 | 12.170 | 3.95 | 12.24 | 19.664 | 6.13 | 23.89 | 36.803 | 4.44 | 15.88 |
| [1.35 1.40) | 4.660 | 8.64 | 21.54 | 3.530 | 7.23 | 15.52 | 8.864 | 7.19 | 24.51 | 7.786 | 6.48 | 19.22 |
| [1.40 1.45) | 1.395 | 9.34 | 22.59 | 2.760 | 9.29 | 16.81 | 4.624 | 12.58 | 26.80 | 3.791 | 8.50 | 32.17 |
| [1.45 1.50) | 0.460 | 9.64 | 23.85 | 3.660 | 18.98 | 26.80 | 4.744 | 18.10 | 28.84 | 0.000 | 0.00 | 0.00 |
| [1.50 1.80] | 0.070 | 16.83 | 41.15 | 2.145 | 31.48 | 31.03 | 3.994 | 29.15 | 41.06 | 0.663 | 12.65 | 35.95 |
| >1.80 | 0.840 | 50.77 | 53.90 | 2.190 | 48.49 | 44.79 | 3.374 | 57.67 | 67.53 | 2.261 | 50.43 | 56.64 |
| 合计 | 100.000 | 5.15 | 14.86 | 100.000 | 6.58 | 20.37 | 100.000 | 8.93 | 34.02 | 100.000 | 5.62 | 25.54 |
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