Grinding equipment for manufacturing superfine sand from waste bricks and tiles

Abstract

The invention relates to grinding equipment for manufacturing superfine sand from waste bricks and tiles, and belongs to the technical field of grinding equipment. A crushing device for preliminarily crushing the waste bricks and tiles is mounted on a machine box, a first grinding device and a second grinding device for grinding the preliminarily crushed waste bricks and tiles are mounted in the machine box, a winnowing device is mounted in the machine box, and a material returning device in butt joint with the winnowing device and the crushing device is mounted on the machine box. According to the grinding equipment, after preliminarily crushed, the waste bricks and tiles are ground in the machine box through the first grinding device and the second grinding device which are different in structure, the superfine sand can be separated and discharged in the winnowing process under winnowing of the winnowing device, due to the fact that the weight of sand which is not fine enough is larger than that of the superfine sand, deviation is not enough after winnowing, the sand falls back into the material returning device to be ground again until the superfine sand is formed, in the whole process, it can be guaranteed that all the materials form the superfine sand, different driving directions are adopted for the first grinding device and the second grinding device during grinding, and the grinding effect is guaranteed.

Description

technical field [0001] The invention relates to a grinding equipment for producing superfine sand from waste bricks and tiles, and belongs to the technical field of grinding equipment. Background technique [0002] Nowadays, a large number of discarded bricks and tiles are produced in buildings, which are often disposed of in the form of garbage, which not only pollutes the environment, but also wastes resources. Recycling has many fields that can be used, among which the ultrafine sand produced by crushing discarded bricks and tiles can be used It is used in many fields, but the existing grinding devices generally only grind for a single time, and the grinding method is single, and the grinding efficiency is low. At the same time, the fine sand produced is often mixed with some large particles of sand, and thin and large particles can also pass through smoothly. The grinding mechanism has low overall quality and is difficult to meet the needs of many fields. Contents of t...

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Problems solved by technology

[0003] In order to overcome the problems existing in the background technology, the present invention preliminarily crushes the waste bricks and tiles, grinds them through two groups of first grinding device and second grinding device with different structures in the cabinet, and then, under the winnowing of the winnowing device, The ultra-fine sand can be separated from the discharge during the winnowing process. The weight of the sand that is not fine enough is greater than that of the ultra-fine sand, and the deflection is insufficient after winnowing, so it falls to the recycling device for re-grinding until it forms ultra-fine sand. The whole process can Ensure that all materials form ultra-fine sand, the first grinding device and the second grinding device use different driving directions for grinding to ensure the grinding effect

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