09 8 月 2023

The jig consists of a fuselage, transmission, water separator, diaphragm and cock equipment, and has two jig buckets, each of which is arranged differently. The operation of the jig when starting and stopping is very critical, and this step can ensure the smooth work of the coal washing process.

Jig is the use of the eccentric block in the vibrator rotation to generate centrifugal force, so that the screen chamber, vibrator and other moving parts for a forced continuous circular or approximately circular movement. The material is continuously thrown on the inclined screen surface with the screen box, and the material is continuously and evenly sent to the receiving port. When the bottom plate and the material move forward, the material in the bin fills the space inside the body.

Jig beneficiation has the advantages of large processing capacity, wide range of particle size, simple operation and convenient equipment maintenance.During this period, with the increasing depletion of raw ore rich resources, the grade of production raw ore has decreased year by year, which makes the jig equipment that can select discarded tailings under the condition of coarser grain grade. It plays an increasingly important role in the processing of cassitere-polymetallic sulfide ore resources in Dachang ore fields, and has become an important preseparation equipment in concentrator.

JT-5 zigzag wave trapezoidal jig is a single structure, mainly composed of tank body, screen frame, screen, spring, diaphragm, movable cone, electromagnetic speed regulating motor, decelerating mechanism, transmission mechanism and so on. Trapezoidal double chamber body, down drive type, CAM lever type mechanical transmission mechanism. The machine’s bucket is connected with a lever. The roller on the lever is compressed by the compression spring so that it is always in contact with the CAM. With the rotation of the CAM, the lever drives the cone through the top rod to pulsate periodically according to the sawtooth curve of the CAM. The camshaft is equipped with an eccentric, which can be used to change the Angle of the CAM installation, and different forms of jig cycle curve and different strokes can be obtained. 

The rate of rise and fall of the sawtooth jig bucket is asymmetrical. Its pulsation curve is a zigzag waveform, the pressure process accounts for about 1/3 to 1/4 of the period, the suction process accounts for 2/3 to 3/4, the average speed of the pressure process is very large, the average speed of the suction process is very small, the diaphragm rises with a very fast acceleration at the beginning of the cycle, which becomes an important force for the bed to lift. Due to the large differential of the zigzag waveform jig curve itself, the strong sucking on the bed is reduced, there is no need to add water under the sieve, and the jig chamber width is larger, making the ore flow smooth and stable, which is conducive to the recovery of heavy minerals and reduce the lower limit of recovery. 

The jagged jig machine stone uses pyrrhotite and pyrite with a specific gravity of 4 ~ 4.5g/cm3, the particle size is 10 ~ 22mm, and the thickness of the bed stone is 40 ~ 55mm. The mesh size of the screen is 8mm×8mm and 6mm×6mm, and the effective area of the two-chamber screen plate is 3.89m2.

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