Concrete sand and stone separation device

Abstract

The invention discloses a concrete sand and stone separation device. The concrete sand and stone separation device comprises a main box body, three pairs of ground fixed assemblies with the same structure and a feed hopper. The main box body is a rectangular cavity box body, and a feed inlet is formed in the upper wall. The feed hopper is installed on the feed inlet. A plurality of feed mechanismswith the same structure are arranged on one side of the feed hopper. The main box body is internally provided with a three-stage separation mechanism. Three pairs of the ground fixed assemblies are correspondingly installed on both sides of the main box body, and three pairs of the ground fixed assemblies are correspondingly arranged at the four corners of the main box body and the center of thefront side and the rear side. The three-stage separation mechanism comprises a three-stage separation structure and a pair of vibration structures with the same structure. The concrete sand and stoneseparation device is exquisite in structure and reasonable in design. Through the three-stage separation mechanism, sand and stone is accurately graded and screened, and a V-shaped sieve plate is usedfor avoiding needle-shaped gravels in the sand and stone to block meshes, and the screening efficiency is sped up.

Description

technical field [0001] The invention relates to concrete production, in particular to a sand and gravel separation device for concrete. Background technique [0002] Sand and gravel aggregate is a general term for materials such as sand, pebbles (gravels), crushed stones, block stones, and material stones in water conservancy projects. Sand and gravel aggregate is the main building material for structures such as concrete and piled stones in water conservancy projects. Aggregate with a particle size larger than 5mm is called coarse aggregate, which is what we often call stone, and aggregate with a particle size smaller than 5mm is called fine aggregate, also known as sand. Sand and gravel are the main building materials for structures such as concrete and piled stones in hydraulic projects. [0003] Sand and gravel aggregate is the main material for the production of concrete in construction, and the properties of building materials produced by sand and gravel aggregates o...

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Problems solved by technology

[0003] Sand and gravel aggregate is the main material for the production of concrete in construction, and the properties of building materials produced by sand and gravel aggregates of different particle sizes are different, and the ways of use are also different. Therefore, screening sand and gravel is an important part in the process of concrete production. Due to various factors in the process of mining and natural formation of sand and stone, such as weathering and cutting of digging teeth, etc., the shape of sand and stone is irregular, and needle-like sand and stone often appear, while the existing Sand and gravel separation equipment mostly uses flat screen plates for screening, which often causes sand and gravel to be stuck in the mesh, resulting in unsmooth screening of sand and gravel, reducing screening efficiency and the quality of sieved sand and gravel, and at the same time due to Coniferous and other shapes of sand and gravel cause the sand and gravel to easily stick and agglomerate during the screening process, and sometimes block the feeding port, resulting in slow feeding and reduced production efficiency. Manual auxiliary feeding is required. Increased the labor intensity of workers, in view of this, in-depth research on the above issues, then this case arises

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