There are many methods for classifying shakers, and there is currently no uniform classification method. According to the head of the bed: cam lever shaker, eccentric link shaker and spring shaker. According to the particle size of the treated material: coarse sand shaker, treatment particle size is 3 (2) ~ 0.5 (0.2) mm; fine sand shaker, treatment particle size is 0.5 (0.2) ~ 0.074 mm; slime shaker, treatment of particle size It is 0.074~0.037 mm. The shaker can be further divided into a rough shaker and a selective shaker according to the nature of the work. The former mainly aims at obtaining a higher recovery rate; the latter mainly aims at obtaining a higher concentrate grade. According to the structure of the shaker, there are separate layers, multiple layers; landing and hanging points. According to the force field, it can be divided into a gravity shaker and a centrifugal shaker.
The classification that best reflects the characteristics of the shaker is the division between the ground and the suspension. According to the force field, it can be divided into a gravity shaker and a centrifugal shaker.
The classification that best reflects the characteristics of the shaker is the classification of the motion characteristics of the bed surface according to its rocking mechanism and support mode, as listed in the following table.
At present, China's common shaker classification table | |||||
Force field | Reciprocating characteristics | Bed surface trajectory | Shaking mechanism | Supporting method | Shaker name |
gravity | Asymmetric straight line | straight line | Cam lever type | slide | Guiyang Shaker |
Inertial spring | scroll | Spring shaker | |||
Arc | Eccentric toggle | shake | Hengyang shaker | ||
Symmetrical line | Tilting the curve upwards | Inertial | Spring piece | Fast shaker | |
Centrifugal force | Asymmetric straight line | Straight line, circumference | Inertial spring | The central axis | Centrifugal shaker |
The structure of the shaker is mainly composed of three parts: the head (transmission mechanism), the bed surface and the frame. For the structure of each part and its role, see the introduction of related issues.
   As shown in the above figure, the shaker is a rectangular or approximately rectangular wide bed. The bed surface is slightly inclined to the tailings side, and the bed 12 is nailed to the bed surface, or a groove is engraved. The washing water fed from the water supply tank 5 flows in a thin layer in an oblique direction. The bed surface is reciprocally asymmetrically moved by the transmission mechanism 8 of the transmission end. The number of times the bed surface moves back and forth every minute is called the punch. The distance between the advancement and retreat of the bed surface is called the stroke. When the slurry is fed into the ore tank 6, under the action of water flow and shaking, the ore particles of different densities are fan-shaped on the bed surface.
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