Gravity equipment-jig
In beneficiation palnt , Jig is one of important gravity equipments . The essence of a jig is captured in Figure 1, which shows a Harz Jig. The downward movement (called the pulsion stroke) of a plunger fluidizes the bed of particles on a sieve plate so that heavy particles move to the bottom and light particles to the top of the bed. As the plunger then moves upward, it creates a suction stroke that collapses the jig bed. The capacity of jigs, usually given as tons per square meter of bed area per hour (t/m 2 /h), is so variable as to be meaningless unless the jig type and conditions are closely specified. Capacity is a function of the jig type and size, the particle size and nature of the feed, the amount of the various products to be removed, and the desired quality and recovery of concentrate. Jig Types Jigs were formerly classified as movable (where the bed of particles moved up and down in a tank of static water) and fixed sieve (where the bed is fixed and the wa...