Multi-stage screening vibration type coal separator

Abstract

The multistage screening vibration type coal picker comprises a box body, a base is arranged below the box body, the box body and the base are connected through a shock absorber, and a first upper protrusion, a first lower protrusion, a second upper protrusion and a second lower protrusion are sequentially and fixedly connected to the inner surface wall of the box body from top to bottom. A second motor drives a rectangular plate to rotate, a gear and the rectangular plate rotate synchronously, the connecting end of a transmission rod and the gear is driven to rotate around the geometric center of the rectangular plate, a sliding rod is pulled to reciprocate left and right, a second sliding block slides, a vertical plate, a first screen and a second screen are driven to reciprocate up and down, and raw coal particles are vibrated and screened; the first motor drives the threaded rod to rotate, so that the nut base moves, the swing rod is driven to move, the first sliding block and the second sliding block rotate, when the sliding rods move by the same displacement, the vibration amplitude of the first screen and the vibration amplitude of the second screen are changed, and the screening efficiency and the screening effect of the first screen and the screening effect of the second screen are improved.

Description

technical field [0001] The invention relates to the technical field of coal separators, in particular to a multi-stage screening vibration coal separator. Background technique [0002] Coal preparation is a processing process that uses the difference in density or surface properties between coal and other minerals to remove non-coal substances in raw coal, and divides coal into products of different qualities and specifications according to the needs according to the particle size of the coal. Coal preparation can improve coal quality, reduce the amount of smoke and dust in coal combustion, and is beneficial to environmental protection. Coal preparation is usually to classify and screen the raw coal first, and then remove the non-coal substances in the raw coal by gravity coal preparation or flotation coal preparation. Efficient classification and screening can save energy, protect the environment and improve the economic benefits of coal. Is of great significance. [0003...

AI Technical Summary

Problems solved by technology

Existing raw coal vibrating screens mostly use single-layer screening. When the particle size is relatively complex, the efficiency of single-layer screening is not ideal. Particles are affected by hindered particles and cannot be completely sieved. Single-stage sieving reduces the probability of complex particle size particles passing through the sieve, and the screening performance is low, which cannot meet the requirements of use.

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