Ball type vertical efficient multistage grinding device

Abstract

The invention discloses a ball type vertical efficient multistage grinding device which comprises a feed hopper, a pre-crushing chain wheel set, a primary grinding wheel disc, a grinding barrel, a main case, a secondary grinding disc and a motor. The main case is fixed onto a framework, the grinding barrel is fixed onto the inner wall of the main case, a collecting cavity is arranged in the main case and is positioned below the grinding barrel, a discharge pipe is connected onto the main case and is positioned at the bottom of the collecting cavity, the feed hopper is connected with the top ofthe main case, the pre-crushing chain wheel set is mounted inside the bottom of the feed hopper, the primary grinding wheel disc and the secondary grinding disc are mounted in the grinding barrel andare fixed onto a rotary shaft, a plurality of ball grooves are formed in the outer side of the primary grinding wheel disc, grinding balls are embedded in the ball grooves, and a plurality of grinding teeth are arranged on the outer side of the secondary grinding disc. The ball type vertical efficient multistage grinding device has the advantages that material granules are uniform under the condition of pre-crushing and grinding treatment carried out by the pre-crushing chain wheel set, the grinding balls of the primary grinding wheel disc and the grinding teeth of the secondary grinding disc, good crushing and grinding effects can be realized, and the efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of grinding equipment, more specifically, it relates to a ball-type vertical high-efficiency multi-stage grinding device. Background technique [0002] Grinding equipment is needed to stir and grind materials in chemical, pharmaceutical, food and construction industries. The grinding equipment currently used generally uses the grinding wheel to drive the grinding medium and the material to rotate at a uniform speed. Since the volume and weight of the grinding medium (steel ball, glass ball, ceramic ball or Ottawa sand) are much larger than the volume and weight of the material, so When the grinding equipment is working, the grinding medium is only attached to the inner wall of the grinding chamber under the action of centrifugal force, and it is easy to move upwards with the rotation of the material, resulting in uneven density distribution of the grinding medium in the upper and lower parts of the grinding ...

AI Technical Summary

Problems solved by technology

The grinding equipment currently used generally uses the grinding wheel to drive the grinding medium and the material to rotate at a uniform speed. Since the volume and weight of the grinding medium (steel ball, glass ball, ceramic ball or Ottawa sand) are much larger than the volume and weight of the material, so When the grinding equipment is working, the grinding medium is only attached to the inner wall of the grinding chamber under the action of centrifugal force, and it is easy to move upwards with the rotation of the material, resulting in uneven density distribution of the grinding medium in the upper and lower parts of the grinding equipment, which seriously affects the grinding effect and is very Difficult to grind finer particles

The overall grinding quality is poor, and it takes a long time. It is not suitable for chemical material particle grinding, pharmaceutical medicinal material grinding, food grinding and architectural coating grinding output.

[0003] At the same time, after the material is put into the grinding device, the grinding operation is affected due to the large volume of the material, especially the large-volume material particles are difficult to grind in a short time, so it is necessary to add a pre-crushing mechanism to crush it , and the grinding operation needs to be carried out step by step

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