JT Sawtooth Wave Jigger is a new type of jiggers. It is one of the types of modern gravity separation equipments. Now it has formed series whose use is expanded. Such type of jigger uses electromagnetic stepless speed regulation which features even rotation, smooth ore current, strong adaptability to selected materials, good separation effects of medium and fine grains, and water saving. Since such jiggers have large handling capacity and wide range of sorting particle sizes as well as are easy for operation and maintenance, they are mainly used to sort alluvial gold, tungsten ores, tin ores, hematite, and beach placer.
Sawtooth wave jiggers are a kind of energy-saving gravity equipment development and improved on tile basis of traditional jiggers according to the theoretic layering law of jig beds.Their jigging pulsation curves take the shape of sawtooth waveform which gets the ascending water to travel more rapidly than the descending water. The ascending time is short while the descending time is long. The problem that the ascending and descending water flow and action time produced by sine wave and pulsation wave are the same is solved. The looseness of the bed is trengthened and suction function is alleviated so that the heavy ore grains in the minerals are able to precipitate fully and the sorting ratio ability and recovery rate of equipment are largely improved. Compared with sine wave jigs through industrial tests, the recovery rate of sawtooth wave jiggers are higher than that of sine wave jiggers respectively in Sn: 3.01%, W: 5.5%, Pb: 1.63%, and Zn: 2.04%. The water consumption is reduced by 30% to 40%. The flooring area is reduced by one-third and the stroke can be adjusted. Since electromagnetism governing-speed motors are adopted for dragging to enable the jig frequency to be steplessly regulated and their parameters reached advanced domestic level, such jiggers are one of the ideal types of energy saving gravity separation equipments.