改善高浓度煤泥水浮选效果的组合柱浮选工艺

谢广元 Xie, Guang-yuan, 倪超 Ni, Chao, 张明 Zhang, Ming, 刘博 Liu, Bo, 代立琪 Dai, Li-qi, 王学霞 Wang, Xue-xia, 彭耀丽 Peng, Yao-li and 沙杰 Sha, Jie (2014) 改善高浓度煤泥水浮选效果的组合柱浮选工艺. Meitan Xuebao, 39 5: 947-953. doi:10.13225/j.cnki.jccs.2013.1103

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Author 谢广元 Xie, Guang-yuan
倪超 Ni, Chao
张明 Zhang, Ming
刘博 Liu, Bo
代立琪 Dai, Li-qi
王学霞 Wang, Xue-xia
彭耀丽 Peng, Yao-li
沙杰 Sha, Jie
Title 改善高浓度煤泥水浮选效果的组合柱浮选工艺
Translated title Enhanced separation of high concentration coal slurry by a two stages process with different flotation columns
Language of Title chi
eng
Journal name Meitan Xuebao
Translated journal name Journal of the China Coal Society
Language of Journal Name chi
eng
ISSN 0253-9993
Publication date 2014-05
Sub-type Article (original research)
DOI 10.13225/j.cnki.jccs.2013.1103
Open Access Status
Volume 39
Issue 5
Start page 947
End page 953
Total pages 7
Place of publication Beijing, China
Publisher China Coal Society
Collection year 2015
Language chi
eng
Subject 1909 Geotechnical Engineering and Engineering Geology
2210 Mechanical Engineering
2208 Electrical and Electronic Engineering
Formatted abstract
为改善高浓度煤泥水的浮选效果,结合喷射式浮选柱(JFC)与旋流微泡浮选柱(FCMC)的分选优势,构建了JFC与FCMC组合工艺试验系统(JFC&FCMC系统),对比分析了FCMC及JFC&FCMC系统处理高浓度煤泥水的分选指标。结果表明:精煤灰分相当的前提下,与FCMC相比,入料浓度为100, 120, 140, 160 g/L时, JFC&FCMC系统的精煤产率分别提高2.85%, 1.82%, 0.93%, 1.20%, 平均提高1.70%;浮选完善指标分别提高1.17%, 0.56%, 1.48%, 1.59%, 平均提高1.20%;0.50~0.25 mm煤泥的浮选完善指标分别提高8.22%, 6.15%, 8.83%, 9.51%, 平均提高8.18%。JFC&FCMC系统能充分发挥JFC与FCMC的优势,实现高浓度煤泥水的全粒级高效分选,与FCMC相比,显著改善整体分选效果,且浓度越高,分选优势越明显。

In order to improve effect separation of high concentration coal slurry,a jet flotation column (JFC) and a cyclonic micro-bubble flotation column (FCMC) was adopted to comprise a two stage flotation system (JFC&FCMC) combining advantages of the two flotation columns.A favorable performance was obtained in treating high concentration coal slurry with the JFC&FCMC flotation system when compared with that of the single stage FCMC system.The comparison of results at the same clean coal ash level indicate that,when feed concentrations are set at 100, 120, 140, 160 g/L,clean coal yields of JFC&FCMC system are 2.85%, 1.82%, 0.93%, 1.20% higher (1.70% on average) respectively than that of single stage FCMC,flotation perfect indexes of all size fractions are 1.17%, 0.56%, 1.48%, 1.59% higher (1.20% on average) respectively,while a more significant increase is obtained at the 0.50-0.25 mm coal slime,whose flotation perfect index are 8.22%, 6.15%, 8.83%, 9.51% higher (8.18% on average) in each concentration.So it can be concluded that JFC&FCMC system can combine the advantages of JFC and FCMC whereby separating whole fraction of high concentration coal slurry effectively.Its superiority over FCMC in treating high concentration coal slurry rises with the coal slurry concentration.
Keyword High concentration
Coal slurry
Flotation column
Two stages process
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2015 Collection
 
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Created: Tue, 01 Jul 2014, 03:07:43 EST by System User on behalf of School of Chemical Engineering