Ai sand mill free of screen classification

Abstract

The invention relates to an Ai sand mill free of screen classification. The Ai sand mill free of screen classification comprises a rack, a barrel supported by the rack, and a driving device used for driving a machine body to run; a rotating shaft is arranged in the barrel; and a transmission device is arranged between the rotating shaft and the driving device. The Ai sand mill free of screen classification is characterized in that the rear half segment of the rotating shaft is provided with a plurality of stirring disks coaxially arranged side by side; the rear end of the rotating shaft is provided with a screen-classification-free structure; the screen-classification-free structure is of a cylindrical framework structure and comprises flanges located at the two ends; and the flanges include an end flange plate connected to the rear end of the rotating shaft, and a tail flange plate far away from the rotating shaft. According to the Ai sand mill free of screen classification, the rotating shaft drives the screen-classification-free structure to rotate, centrifugal force is generated through rotation, fine particles are naturally concentrated to an axis area through the centrifugal force, coarse particles are thrown to the edge, qualified product particles are output because of extrusion of upstream coarse and fine particle pulp, and the coarse particles return to the upstream of the barrel along the barrel wall and continue to be ground till the qualified particle size is achieved.

Description

technical field [0001] The invention relates to a grinding machine for mines, in particular to a sieveless grading moxa grinding machine. Background technique [0002] The sieveless grading structure is applied to the mining sand mill, which is the Ai sand mill. The existing widely used horizontal sand mill adopts the traditional filter screen for classification. The traditional filter screen is generally in the shape of a cylinder. The cylindrical surface is composed of radial steel wire strips and circumferential steel wire strips. There are densely arranged through holes between the steel wire strips. , The traditional filter classification is to control the particle size of the product through the pore size of the filter screen, the fine particles smaller than the pore size of the filter screen can go out, and the fine particles larger than the pore size are retained. However, the traditional filter screen grading system has the disadvantages of easy blockage and short ...

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Problems solved by technology

[0003] The invention mainly aims at the disadvantages that the filter screen structure of the traditional sand mill is easy to be blocked so that the product cannot meet the requirement of narrow particle size distribution, and a secondary screening device needs to be added. The rotating shaft is driven to rotate, and the rotating shaft drives the non-screen grading structure to rotate, and the rotation generates centrifugal force, which naturally concentrates the fine particles to the axis area, and the coarse particles are thrown to the edge, because they are squeezed by the upstream coarse and fine particle slurry (feed pump Feeding in), qualified product particles are output, while coarse particles return to the upstream of the cylinder along the wall to continue grinding until reaching the qualified particle size

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