Collecting device of horizontal planetary ball mill

Abstract

The invention discloses an aggregation device of a horizontal planetary ball mill and belongs to the technical field of powder grinding. The aggregation device comprises an internal spiral discharging device and an aggregation cover. The aggregation cover comprises an aggregation cover fixing housing and an aggregation cover revolution disk. The internal spiral discharging device is supported on the aggregation cover revolution disk. One end of the internal spiral discharging device is connected to a mill cylinder and rotates with the mill cylinder, and the other end of the internal spiral discharging device goes through the aggregation cover revolution disk. The aggregation cover revolution disk fixedly sleeves a revolution shaft. The aggregation cover fixing housing sleeves the aggregation cover revolution disk, and the aggregation cover fixing housing and the aggregation cover revolution disk move relatively. A wind blockage vale is arranged below the aggregation cover fixing housing. A part of the aggregation cover revolution disk corresponding to the outer side of the internal spiral discharging device is provided with a material-blocking arc ring. The part of the aggregation cover revolution disk corresponding to the outer side of the internal spiral discharging device is provided with the material-blocking arc ring so that dust-raising phenomenon produced in aggregation is greatly inhibited, a work environment is improved, forced discharging is realized by the internal spiral discharging device and production stability and continuity are ensured.

Description

technical field [0001] The invention relates to a collection device of a planetary ball mill, in particular to a collection device of a horizontal planetary ball mill, belonging to the technical field of powder grinding. Background technique [0002] The horizontal planetary ball mill (referred to as planetary mill) is equipped with multiple grinding cylinders horizontally with the axis of revolution as the center of symmetry. When each grinding cylinder revolves around the axis of revolution, the grinding cylinder itself also rotates. There are grinding bodies (usually steel balls and steel segments), and the material is ground by the impact energy of lifting and falling the grinding body when the cylinder rotates. During the continuous working process, the repeated impact crushing and rolling and sliding grinding make the bulk materials gradually become smaller and become fine powder. [0003] Since the planetary mill has multiple grinding cylinders working at the same ti...

AI Technical Summary

Problems solved by technology

[0004] On May 10, 2000, the Chinese utility model patent CN2377001Y disclosed a continuous dry-process planetary ball mill, which adopted a central discharge device similar to a squirrel-cage structure, and adopted a wind-driven discharge method, but In actual use, the air induction of this scheme has technical difficulties and cannot be realized

At the same time, the protruding hollow circular truncated grille in the grinding cylinder is often directly impacted by the grinding steel balls, which is prone to breakage and affects normal production; once damaged, the grinding cylinder needs to be removed for replacement, which is extremely inconvenient

[0005] On October 18, 2006, the Chinese invention patent CN100377789C disclosed a collection assembly of a large planetary ball mill, which proposed a peripheral discharge method of the grinding cylinder for discharging, because the dynamic and static contact area between the discharge cover and the planetary grinding cylinder Larger, the running resistance of the grinding cylinder is increased, and the energy consumption of the system is increased; in addition, the powder after grinding is thrown out of the planetary grinding cylinder under the action of centrifugal force and enters the two sides The revolving collecting tray is rotating, because the powder particles receive a large centrifugal force, and the dynamic and static matching sealing periphery is too long, it is difficult to completely seal, there is always a lot of dust on site, and the working environment is not ideal. Leaf-type auxiliary seals, felt seals and other technologies cannot completely solve the dust problem

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