Automatic gravel crushing equipment for building material production and preparation

Abstract

The invention relates to the field of gravel crushing, in particular to automatic gravel crushing equipment for building material production and preparation, which comprises a crushing mechanism and a sieving mechanism, the crushing mechanism is arranged on the ground, and the sieving mechanism is arranged at the lower end of the crushing mechanism; the design concept of a double crushing mode is adopted, the crushing mechanism has the double functions of crushing and grinding, and the double functions are achieved through the same structure, so that the crushing speed and the crushing effect of the gravel are greatly improved, the crushed gravel can be screened through the screening mechanism, and the crushed gravel is screened in a moving state, so that the screening efficiency of the crushed gravel is improved, and the situation that other structures are blocked by the crushed gravel can be avoided.

Description

technical field [0001] The invention relates to the field of sand and gravel crushing, in particular to an automatic sand and gravel crushing equipment for the production and preparation of building materials. Background technique [0002] Mortar is a kind of building materials, which is a bonding material used in building bricks. It is made by mixing cementitious materials, fine aggregates and water in proportion. It is also called mortar. Widely used building materials, commonly used in masonry and plastering projects, can be divided into masonry mortar and plastering mortar, the former is used for masonry and component installation of bricks, stones, blocks, etc., while the latter is used for wall surfaces , plastering of surfaces such as ground, roof and beam-column structure to meet the requirements of protection and decoration. [0003] As the main raw material in concrete, fine aggregate plays the role of skeleton and support in buildings. It generally uses natural s...

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Problems solved by technology

[0003] As the main raw material in concrete, fine aggregate plays the role of skeleton and support in buildings. It generally uses natural sand, such as river sand, sea sand and valley sand. When there is a lack of natural sand, artificial sand can also be used. In concrete The gaps between the sand particles are filled with cement slurry. In order to save cement and improve the strength of concrete, the gaps between the sand particles should be reduced as much as possible. Therefore, whether it is natural sand or artificial sand, it needs to be ground or broken accordingly. However, the following problems will occur in the crushing process of sand and gravel: in a single crushing mode, the overall crushing effect of sand and gravel is not ideal, the size of sand and gravel particles is uneven and some sand and gravel are not broken, and at the same time Sand and gravel are not screened after crushing, and the overall fineness of the sand and gravel particles is low, which affects the quality of the mortar prepared subsequently

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