Screening device for machine-made sand manufacturing

Abstract

The invention discloses a screening device for machine-made sand manufacturing. The screening device comprises a first screening chamber, one end of the first screening chamber is provided with a feeding chamber, an inner cavity of the first screening chamber is rotationally connected with a screening roller, the screening roller is horizontally provided with a supporting rod in a penetrating manner, one end of the supporting rod penetrates and extends to the outer side of the first screening chamber, one end of the supporting rod is equipped with a driving motor, the other end of the screening roller is provided with a coarse sand slag discharge port, one side of the first screening chamber is provided with a discharge guide plate, a second screening chamber is arranged under the discharge guide plate, the bottom part of the second screening chamber is provided with a fine filter plate, one side of the fine filter plate is provided with a discharge port, and the bottom part of the fine filter plate is provided with a fine sand slag discharge port. According to the screening device for machine-made sand manufacturing, the automatic screening and filtering are realized, screening and filtering for machine-made sand with larger diameters and smaller diameters are carried out, the filtering effect is good, the labor intensity is reduced, and the processing efficiency is high.

Description

technical field [0001] The invention relates to the technical field of machine-made sand, in particular to a screening device for making machine-made sand. Background technique [0002] Manufactured sand usually refers to artificial sand that is repeatedly crushed and processed by a sand making machine to a particle size of less than 4.75mm, also known as broken sand. The manufacturing process of machine-made sand is to repeatedly crush gravel and then screen it. Multiple screenings are required to meet the needs. In the prior art, when screening the processed crushed stones, the crushed stones are usually filtered through a sieve. Large-grained crushed stones are screened, and some machine-made sands with smaller particle diameters will also be screened. Do not filter, which will affect the quality of the machine-made sand. The concrete produced by the machine-made sand with a smaller diameter will have lower strength, which will easily lead to problems in the quality of th...

AI Technical Summary

Problems solved by technology

[0002] Manufactured sand usually refers to artificial sand that is repeatedly crushed and processed by a sand maker to a particle size of less than 4.75mm, also known as broken sand. The manufacturing process of machine-made sand is to repeatedly crush gravel and then screen it. Multiple screenings are required to meet the needs. In the prior art, when screening the processed crushed stones, the crushed stones are usually filtered with a sieve. Large-grained crushed stones are screened, and some machine-made sands with smaller particle diameters will also be screened. Do not filter, which will affect the quality of machine-made sand. The concrete made of small-diameter machine-made sand has low strength, which will easily lead to problems in building quality, and when screening, the screening effect is not good, which affects the screening efficiency.

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