NDLI: Experimental study of dry permanent magnet magnetic separation of high-sulfur fine coal

Content Provider	IEEE Xplore Digital Library
Author	Peng Liu Hongguang Jiao Jiao Ma
Copyright Year	2013
Description	Author affiliation: Sch. of Mater. Sci. & Eng., He'nan Polytech. Univ., Jiao Zuo, China (Hongguang Jiao; Jiao Ma) \|\| Dept. of Ind. Min. & Archit., Bi Jie Vocational Coll. of Technol., Bijie, China (Peng Liu)
Abstract	Dry magnetic separation of high-sulfur fine coal was carried out using a novel permanent magnet high-gradient magnetic separator (HGMS). The samples were analyzed using a vibrating sample magnetometer (VSM) and X-ray diffractometer (XRD) to determine the properties of the different size fractions of pulverized coal. It was found that magnetic susceptibility and the ash and sulfur content increased with increasing particle size below 0.9mm; Sulfur reduction of 44% and ash reduction of 43% were obtained from coal with particle size of 0.15~0.074 mm, while the clean coal yield reached 95.61%. The results show that desulfurization efficiency and de-ashing efficiency decreased with increasing size of the pulverized fine coal from 53% to 37% and from 49% to 32%, respectively. Desulfurization efficiency and de-ashing efficiency of fine coal were significantly improved by permanent magnet dry magnetic separation using a new permanent magnet HGMS. However, decreases in desulfurization efficiency and de-ashing efficiency of the different size coal samples were found to correlate with reduced clean coal recovery, besides coal fraction sized at 0.0-0.074 mm.
Starting Page	863
Ending Page	867
File Size	151399
Page Count	5
File Format	PDF
ISBN	9781479933358
e-ISBN	9781479933365
DOI	10.1109/ICMREE.2013.6893809
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pyrite Magnetic separation High-sulfur fine coal Coal Ash Permanent magnets Minerals Magnetosphere Magnetic circuits Dry magnetic separation Permanentmagnet high-gradient separator
Content Type	Text
Resource Type	Article

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