Multistage screening system applied to crusher

Abstract

The invention provides a multistage screening system applied to a crusher. The multistage screening system applied to the crusher comprises motors, a screening box, spiral conveying devices, a screening cleaning belt, screens and screening barrels; the multistage screening system is characterized in that the spiral conveying devices are horizontally placed in the screening box, a center shaft of the screening box is connected to a driving shaft, a belt wheel sleeves the driving shaft, and the belt wheel is connected to the motors; and the screens comprises a fine screen, a middle screen and acoarse screen, the fine screen, the middle screen and the coarse screen are sequentially arranged in the screening barrels along the advancing direction of the material, a middle material outlet and acoarse material outlet are sequentially formed in the bottom of the screening barrels corresponding to the fine screen, the middle screen and the coarse screen. According to the multistage screeningsystem applied to the crusher, the spiral conveying devices are used for grinding and conveying the materials through continuous rotation, so that the grading treatment of the materials is realized; and meanwhile, the device is easy to assemble, and the assembling strength of technicians is not increased.

Description

technical field [0001] The invention relates to a multi-stage screening device for ore fragments, which belongs to the field of mechanical equipment, in particular to a multi-stage screening system applied to crushers. Background technique [0002] Crusher is also called stone crusher and can be divided into medical crusher and mining crusher according to the main categories. The mining crusher in the prior art cannot screen and crush ore fragments of different sizes when crushing ore. , resulting in many larger ores being separated out in advance due to gravity, the crushing effect is weakened, and the particle size of the crushed ore powder is uneven. [0003] The screening treatment of the finished ore fragments has always been a difficult problem, and it needs to be screened according to the size of the material. At present, there are vibrating screens that use vibrating motors to vibrate as a vibration source, so that materials are thrown up on the screen and move forw...

AI Technical Summary

Problems solved by technology

At present, there are vibrating screens that use vibrating motors to vibrate as a vibration source, so that materials are thrown up on the screen and move forward in a straight line at the same time. The upper material and the lower material are discharged from their respective outlets; the single vibrating screen used can only screen the raw material into two specifications. If it is to be screened into multiple specifications, multiple vibrating screens need to be arranged according to the size of the screen. In the form of vibrating screen, it takes up a lot of space and is noisy. It needs to be screened many times, and the efficiency is low.

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