Abstract
Enhanced gravity separators (EGS) provide a more efficient separation than froth flotation when cleaning coal in the 150 × 25 μm particle size range. To improve the performance of an EGS unit, air bubbles were injected into the feed stream in an attempt to decrease the apparent density of the coal particles due to the formation of bubble-coal particle agglomerates. Air injection had a significant impact on operating characteristics and separation performance. Coal recovery was increased by 10 to 20 absolute percentage points while a 2 percentage point drop in the minimum product ash content was also achieved.
Original language | English |
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Pages | 739-748 |
Number of pages | 10 |
State | Published - 2005 |
Event | 2005 SME Annual Meeting: Got Mining - Preprints - Salt Lake City, UT, United States Duration: Feb 28 2005 → Mar 2 2005 |
Conference
Conference | 2005 SME Annual Meeting: Got Mining - Preprints |
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Country/Territory | United States |
City | Salt Lake City, UT |
Period | 2/28/05 → 3/2/05 |
ASJC Scopus subject areas
- General Engineering