Production system and production method of high-quality machine-made sand

Abstract

The invention discloses a production system and a production method of high-quality machine-made sand. By adopting the production system and the production method, the problem that conventional machine-made sand is unreasonable in grading and poor in particle shape can be fundamentally solved. The production method comprises the following steps: crushing broken stones by virtue of a crushing machine, conveying the broken stones to a grading controller by virtue of conveying equipment, classifying machine-made sand and finely controlling the grading of the machine-made sand, returning unqualified materials to the crushing machine to be crushed again, adding a particle shape optimizing machine behind the grading controller, and optimizing the particle shape of the machine-made sand. According to the machine-made sand produced by using the method disclosed by the invention, the fineness modulus and stone powder content can be accurately adjusted, the machine-made sand is mellow and full in particle shape and less in edge and corner, the improvement of concrete performance can be facilitated, the consumption of water and cement can be saved, and huge economic benefits can be provided.

Description

technical field [0001] The invention relates to a machine-made sand production system and a production method. Background technique [0002] In recent years, my country's engineering construction has developed rapidly, and sand, as an important raw material for engineering construction, is in increasing demand. However, natural sand resources are increasingly scarce, and the demand for machine-made sand to replace natural sand is becoming greater and greater. [0003] Vertical shaft impact crusher is the main equipment for the production of machine-made sand, but the machine-made sand produced by it has obvious disadvantages: more coarse particles, less fine particles, high stone powder content, unreasonable gradation, it needs to be mixed with natural sand, configuration The grade of concrete is low and the workability is poor. [0004] In the original production system, if you want to adjust the gradation of machine-made sand, there are two main methods, one is to use im...

AI Technical Summary

Problems solved by technology

[0003] Vertical shaft impact crusher is the main equipment for the production of machine-made sand, but the machine-made sand produced by it has obvious disadvantages: more coarse particles, less fine particles, high stone powder content, unreasonable gradation, it needs to be mixed with natural sand, configuration The grade of concrete is low and the workability is poor

[0007] In addition, the surface of the machine-made sand particles produced by the vertical shaft impact crusher is rough, with many edges and corners. When configuring concrete, the amount of cement and water is large

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