详情
JT sawtooth wave jig is a new type of jigs. It is one of the types
of modern gravity separation equipment. New it has formed series
whose use is expanded. Such type of jig 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
jigs 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.
Traditional jigs mostly adopt circumferential off-center drive.
Their jigging pulsation curves are mostly sine waves. The ascending
and descending water flow velocity and action time produced by
septal movement are basically the same. These hinder the loosening
of jig beds and layering of ore grain according to gravity.
Therefore, the sorting ratio and recovery rate of equipment are
affected.
Sawtooth wave jigs are a kind of energy-saving gravity equipment
development and improved on the basis of traditional jigs 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 strengthened 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 jigs are higher than that of sine wave jigs respectively in
Sn: 3.*1%, W: 5.5%, Pb: 1.*3%, and Zn: 2.*4%. The water consumption
is reduced by *0%to *0%. The area of 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 jigs are one of the ideal types of
energy saving gravity separation equipment.
1. Box 2. Level 3.6 Bearing ***6 4.7.8 Adjustment gland 5. Gear
shaft 9. Bearing **3 *0. Bearing ***2 *1. Crank shaft *2.*5.*3.*7
Nut *3. Dust cover *4. Drill drift *6. Cam *7. Drill drift seat *8.
Shaft *9. Joint bearing inner ring *0. Joint bearing outer ring *1.
Shaft sleeve *2. Shaft *4. Gear *5. Bearing ***6 *6. Adjustment
angle *8. Shaft *9. Bearing ***7 *0. Bearing cover (roller) *1.
Back cover plate *2. Adjusting screw
IV. Equipment Installation
For the jigs, the bottom surface of the frame must be installed
horizontally to ensure the gradient of the screen in the tank is
within the design scope.
