I. Overview

6-S Shaking Table belongs to gravity separation equipment, which is developed from plane chute.It is widely used in the re-election production process for its wide particle size, high sorting efficiency, intuitive working condition and easy operation and management.

6-S shaking table is mainly used for separating gold, tungsten, tantalum, iron, manganese, chromium, titanium, bismuth, lead and other non-ferrous, ferrous and rare precious metal minerals, and can also be used to sort other materials with sufficient specific gravity difference and suitable particle size composition.The use of shaking table beneficiation is stable and reliable, the distribution of ore zone is clear, and can get the concentrate and discard the tailings.

II. Working Principle

Shaking table sorting is in the bed longitudinal reciprocating motion and transverse water flow role to achieve, water flow transversely across a bed strip in the groove when the formation of water vortex, water vortex and longitudinal movement of the bed together to make the mineral sand layer loose and according to the specific gravity of the stratification, specific gravity of the ore particles, along the surface of the bed moving at different speeds by the transverse water flushing effect is different, the formation of the specific gravity of different ore belt distribution discharge, to achieve the purpose of sorting.

Third, the structure of the shaking table

6-S shaking table consists of three parts: bed head (transmission mechanism), bed surface and bed foot (slope adjustment mechanism), as shown in Fig. 1.

1. Head (transmission mechanism)

Shaking bed transmission mechanism adopts eccentric elbow plate type, connected with bed surface through linkage seat, so that the bed surface makes asymmetric movement along the longitudinal direction.

When rotating the stroke adjusting handwheel clockwise, the adjusting slider moves upward and the angle between the two elbow plates increases, thus the stroke decreases; on the contrary, rotating the adjusting handwheel counterclockwise increases the stroke.

Fig. 1: Structure of 6-S shaking table

1. motor 2. bed head (drive mechanism) 3. feeder tank 4. wash tank

5. foot of bed (slope adjusting mechanism) 6. slope adjusting handwheel 7. bed Figure 2: 6-S Shaking Table Head Structure Diagram

1.Linkage seat 2.Reciprocating lever 3.Stroke adjusting screw 4.Movable elbow plate seat 5.Rocking lever

6. Elbow plate 7. Eccentric shaft 8. Fixed elbow plate holder 9. Spring 10. Tail rod holder 11.

12. case 13. spring loaded bolt 14. large pulley 15. stroke adjustment handwheel

After adjusting the stroke, the spring adjusting bolts at the back of the transmission box must be adjusted accordingly so that the spring can be properly loosened and tightened to avoid damaging the parts due to over-loosening or over-tightening of the spring.

2. Slope adjustment mechanism

The slope adjusting mechanism of the shaking machine is composed of shaking support, adjusting seat, saddle seat and adjusting screw, etc. When rotating the adjusting handwheel, it will be adjusted by the adjusting screw. When rotating the adjusting handwheel, the adjusting seat rotates on the saddle seat through the screw, so as to change the lateral inclination of the bed surface.

The lateral inclination angle of the bed surface can be changed.Clockwise rotation of the handwheel increases the tilt angle, counterclockwise rotation of the handwheel reduces the tilt angle.

 3. Bed surface

The bed surface of shaking table is in the shape of right-angle trapezium, generally made of wood or glass fibre reinforced plastic wrapped steel skeleton, and the working surface is formed by special wear-resistant layer of groove, and the groove is divided into straight and wave (single wave and double wave), and according to the different grain size of the minerals to be selected, there are coarse sand bed, medium sand bed, fine sand bed and fine mud bed.

IV. Technical parameters V. Installation

The equipment should be installed on the horizontal concrete foundation.

1. install the channel steel bracket on the foundation. 2. install the drive mechanism and the bar ramp;

2. install the drive mechanism and slope adjustment mechanism, set the hand wheel of slope adjustment in the direction of sand (water) tank on the bed surface, and calibrate the two rotary centres of slope adjustment mechanism to coincide with the centre line of the bed head. 3. place the bed surface on the horizontal concrete foundation.

3. Place the bed surface on the rocker plate, correct the contact position between the bed surface and the rocker plate, and then tighten the fixing bolts of the rocker box.

4. Connect the linkage bolts between the bed surface and the head, turn the big pulley to make the bed surface move longitudinally, observe and adjust the linkage bolts to make the front and back swing of the four rocking plates basically the same.The linkage bolt and the head of the bed can be eliminated by adjusting the height of the rocker box.

Sixth, lubrication

Head part of the use of lubricating oil lubrication, through the oil pump on the lubrication part of the lubrication.Lubricating oil to add just enough to soak the bearings as appropriate.

The lubricant is injected into the shaking box of the slope adjustment mechanism, and other movable parts are lubricated with grease.Use

1. manually rotate the big pulley before starting the machine, check whether the moving parts are flexible and free of stagnation, and whether the fastening screws are loosened.

2. Start the motor, observe whether the motor steering (clockwise) is correct, whether the oil pump oil supply is normal.The bed spring should not be too tight, should slightly relax the spring top screw so that the tail rod in the movement of a slight impact sound, and then gradually tighten the spring top screw to the disappearance of the sound can be, and lock the lock nut lock.

3. control the amount of feed and feed concentration, to ensure that the slurry can have sufficient mobility along the bed surface and can be layered as appropriate.

Enough stratification is appropriate.Generally speaking, the concentration of coarse sand is 12%-38%, and the concentration of fine mud is 13%-20%.

4. lateral slope and washing water is an important factor affecting the quality of shaking table ore dressing, they and the lateral movement of the ore particles have a direct relationship, directly affecting the quality of concentrates and tailings loss rate, the general situation: large particle size, concentration, large amount of ore feeding, using a larger slope and washing water.Wash water volume and lateral slope adjustment is appropriate, the water distribution is uniform, not pulling the ditch, not a sand pile, the concentrate band wide and thin, the band is obvious; if the lateral slope is too large, the slurry flow rate is fast, the concentrate band becomes narrower; if the slope is too small, the slurry flow rate is slow, the concentrate band can not be divided; wash water is too large, the concentrate band becomes narrower, part of the concentrate runners in the mine, the recovery rate is low.

5. Stop feeding the ore before stopping the machine, wait for the minerals on the bed to be sorted out, stop washing water, and then stop the machine.After stopping the machine, clean the bed surface with water, so as not to oxidise the impurities and scale.