Humboldt jig
Humboldt jig
[′həm‚bōlt ‚jig] (mining engineering)
An ore jig with a movable screen.
References in periodicals archive
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The Humboldt jig is primarily a coal cleaning machine, but it is also used for metal-ore upgrading on water-soluble materials such as potash or salt, where it is advantageous to maintain the coal dry for direct feed to boilers, and in locations where there is a shortage of water, or where freezing weather prevails.
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