Dense Medium Cyclone Separation of Fine Coal: A Discussion on the Separation Lower Limit

被引：5
作者：
Ni, Chao [1 ,2 ]
Xu, Guangqian [3 ]
Chang, Jing [4 ]
Liu, Bo [5 ]
机构：
[1] China Univ Min & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou 221116, Peoples R China
[2] China Univ Min & Technol, Sch Chem Engn & Technol, Xuzhou 221116, Peoples R China
[3] Shandong Energy Xinwen Min Grp Co Ltd, Tai An 271000, Peoples R China
[4] Xian Univ Sci & Technol, Coll Chem & Chem Engn, Yanta Middle Rd 58 Jin Saga It Mall, Xian 710054, Peoples R China
[5] East China Univ Sci Technol, Dept Mech & Power Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China
来源：
MINERALS | 2023年 / 13卷 / 09期
关键词：
dense medium cyclone; fine coal; separation lower limit;
D O I：
10.3390/min13091115
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The separation of fine coal has been widely discussed in the coal preparation industry due to its high economic potential. Dense medium cyclone (DMC) is the most efficient equipment available for fine coal separation. However, the industrial application of DMC is far from satisfactory due to operational difficulties and maintenance. In this research, particle settling behavior in a dense medium cyclone was analyzed for improved separation. The calculation result about feed pressure and separation lower limit, which fits the experimental data well, might be a guidance for industrial DMC design and operation. According to the calculation result, it is highly recommended that the separation lower limit be set at 0.2 mm rather than 0.1 mm, because the feed pressure head required for the latter (50 D) is three times higher than the former (15 D).
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页数：10
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