Baum jigs

Hydraulic separation depends on a process called jigging, which creates a panicle siratifiealion from an alternate expansion and compaction of a bed of panicles by a pulsating fluid How. As originally developed, a baskel tilled with material was moved up and down in a lank filled with water. The more modem Baum jig process utilizes an air impulse concept in which the water is moved hy air pressure front an adjacent sealed chamber There are several refinements of the process, including the McNally Norton standard washer. 

The most common jig used in coal preparation is the Baum jig, which consists of U-shaped cells (Fig. 16a). One limb... 

FIG. 19-27 Schematic diagrams of the jigs, a) Basic, (b) Denver/Harz, (c) Remer, d) Baum, and (e) Batac. 

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