Mining multi-stage drum screen

Abstract

The invention discloses a mining multi-stage drum screen. The mining multi-stage drum screen is characterized in that the mining multi-stage drum screen comprises a base and a plurality of screening mechanisms; each screening mechanism comprises a drum screen, a driving mechanism and an anti-blocking mechanism, the driving mechanisms drive the drum screens to rotate, the drum screens are sequentially and rotatably connected in a sleeved mode from inside to outside, and the outermost drum screen is rotatably mounted on the base; and the anti-blocking mechanism comprises an anti-blocking shaft and a plurality of anti-blocking rods, the anti-blocking shaft is rotatably mounted on the inner sides of the drum screens, and the anti-blocking rods are fixed to the outer circumferential surface ofthe anti-blocking shaft and used in cooperation with sieve meshes on the drum screens when the drum screens rotate. Compared with the prior art, the invention has the advantages that the rotating speeds of the drum screens can be adjusted separately to meet the requirements of minerals with different sizes for the rotating speeds of the drum screens, so that the mineral screening quality and efficiency are guaranteed, and the situation that the mining multi-stage drum screen has to be stopped for maintenance and sieve mesh cleaning due to blockage of the sieve meshes is avoided.

Description

technical field [0001] The invention relates to the technical field of mineral material screening, in particular to a mine-used multistage drum screen. Background technique [0002] In ore operations, trommel screens are widely used. Trommel screens usually have a multi-stage screening structure. Multiple trommel screens are fixed and socketed sequentially from the inside to the outside, and there are several sieve holes on the trommel screen. The trommel to the outermost trommel is screened sequentially. The screening effect is good and the screening efficiency is high, but there are also certain problems. The hole blockage will affect the screening efficiency and quality of mineral materials after many screen holes are blocked, and manual cleaning is required, which is cumbersome and inefficient; the multi-stage drum screens are fixed to each other, and when the outermost drum screen rotates, The rest of the trommel screens will rotate synchronously, so that the rotation ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a multi-stage trommel screen for mining, which can solve the technical problems that the screen holes need to be cleaned manually and the trommel screens cannot adjust their respective speeds.

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