炼焦煤中不同粒级组分的煤质差异研究

燃料与化工 ›› 2021, Vol. 52 ›› Issue (2): 9-14.

炼焦煤中不同粒级组分的煤质差异研究

任华伟1,2

1.邢台旭阳科技有限公司焦化事业部，邢台054001； 2.河北省煤化工工程技术研究中心，邢台054001

出版日期:2021-03-23 发布日期:2021-04-21

Study on difference of coal properties of different sizes distribution in coking coal

Ren Huawei1,2

1.Coking Division，Xingtai Risun Science and Technology Co.,Ltd.,Xingtai 054001,China；2.Hebei Coal Chemical Engineering Technology Research Center,Xingtai 054001,China

Online:2021-03-23 Published:2021-04-21

摘要/Abstract

摘要：

为了实现配煤粉碎工艺的优化改进，将6种不同特性的单种煤和2种生产配合煤进行筛分，制备成>3 mm、3~1 mm、1~0.5 mm、0.5~0.1 mm、<0.1 mm 5种粒级组分的煤。进行了各粒级组分煤样的灰分、硫分和G值的分析，并与常规煤指标进行对比，研究不同煤种、不同筛分粒级组分的煤质差异；同时研究了各单种煤细度与哈氏可磨指数HGI的相关性。结果表明，哈氏可磨指数HGI与洗精煤的细度有较好相关性；各单种煤的灰分随着粒度降低呈现先降低后升高的趋势，硫分呈现逐渐增加的趋势，各单种煤G值的趋势稍有不同。配合煤各粒级组分的灰分变化趋势与单种煤一致，但硫分和G值却不一致。

关键词: 炼焦煤, 粒级组分, 硫分, 灰分, 煤质

Abstract:

In order to realize optimization of coal crushing for coal blending,6 single kinds of coals and 2 kinds of blended coal were screened for preparation of different sizes distribution i.e.>3 mm,3~1 mm,1~0.5 mm,0.5~0.1 mm,and <0.1 mm.Analysis was made for the coal sample of each graded component in ash content,sulfur and G value.Compared with conventional coal indexes,study was done for different coal kinds,different screening gradation of different coal quality.The correlation between the fineness of each coal and HGI was also studied.The results show that HGI has a good correlation with the fineness of cleaned coal.The ash content of each coal showed a trend of first decreasing and then increasing with the decrease of grain size,while the sulfur content showed a trend of gradually increasing,and the caking index of each coal was slightly different.The trend of ash content of each grain size component of mixed coal is consistent with that of single coal,but the sulfur content and G value are not.

Key words: Coking coal, Granule size graduation, Sulfur content, Ash content, Coal property

中图分类号:

TQ533.2

任华伟, . 炼焦煤中不同粒级组分的煤质差异研究[J]. 燃料与化工, 2021, 52(2): 9-14.

Ren Huawei, . Study on difference of coal properties of different sizes distribution in coking coal[J]. FUEL & CHEMICAL PROCESSES, 2021, 52(2): 9-14.

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