Tail end process for improving quality of machine-made sand

Abstract

The invention relates to the technical field of machine-made sand, in particular to a tail end process for improving the quality of machine-made sand. The tail end process comprises the following steps of S1, selecting rock blocks; S2, crushing rock blocks; S3, conducting screening; S4, performing dust removal; and S5, obtaining machine-made sand. A sand washer water tank is provided with a watersupply system; and the water supply system comprises a high-water-level liquid level meter, a middle-water-level liquid level meter, a low-water-level liquid level meter, a submerged pump, a sewage pump, a water adding valve and a liquid level controller. A square-hole screen is selected as the screen; the size of each sieve pore is 3.5 to 4.5 mm; the inclination angle of the screen surface is generally about 20 degrees; good screening efficiency and treatment capacity of the materials can be achieved; the water volume in water tank is effectively controlled; the submerged pump is protected; the water is saved; the saturated surface drying effect of the machine-made sand is achieved; the national requirements are met; and the quality of the machine-made sand can be effectively improved, and the performance of machine-made sand concrete is improved through the technical requirements of mine mother rock, the technical requirements of a vibration feeding screen, a material crushing methodand the mechanism of the material crushing method in the machine-made sand production technological process.

Description

technical field [0001] The invention relates to the technical field of machine-made sand, in particular to a tail-end process for improving the quality of machine-made sand. Background technique [0002] Machine-made sand refers to sand processed by sand making machines and other auxiliary equipment. The finished product is more regular and can be processed into sand of different rules and sizes according to different process requirements, which can better meet daily needs. Machine-made sand requires professional equipment to produce qualified and suitable sand and gravel. [0003] With the increasing number of construction projects in our country, the amount of concrete used is increasing, and the demand for sand is also increasing. However, excessive mining has depleted my country's natural sand and gravel resources, and it is difficult to meet the demand. The growing demand for sand and gravel in various industries has led to the emergence of machine-made sand. High-qual...

AI Technical Summary

Problems solved by technology

[0004] The traditional machine-made sand production process is not equipped with a water supply system. On the one hand, the machine-made sand cannot achieve the effect of saturated surface dryness. On the other hand, the dry sand directly enters the stockpile through the belt, which is likely to cause dust to fly and pollute the environment. Therefore, an improved method is proposed. The end process of machine-made sand quality