Sand making process for machine-made sand and sand making device

Abstract

The invention discloses a sand making process for machine-made sand and a sand making device. The sand making process comprises the following steps that 1, raw material stones enter an elevator through a feeding pit; and 2, after the stones pass through a V-shaped screen and a linear vibrating screen and are graded, the separated clean stones enter an impact type sand making machine. The pebbles contain a certain amount of fine sand, powder enters the sand making machine after being subjected to multiple screening, the pebbles entering the impact type sand making machine are clean, the situation that the impact efficiency of the impact type sand making machine is reduced due to much powder due to the fact that the pebbles contain a certain amount of powder is avoided, and due to the fact that a grading adjusting device is arranged in the process, the quantity of coarse particles in the screening process can be randomly extracted on line and controlled, then positive feedback is performed for sand making, and due to the fact that coarse particles are intercepted by the grading adjustable device, the grading plumpness of qualified sand can be adjusted, so that the requirements of high-quality machine-made sand are met.

Description

technical field [0001] The invention belongs to the technical field of sand making, and in particular relates to a sand making process and a sand making device for machine-made sand. Background technique [0002] The machine-made sand process is not just a process of turning large-sized stones into smaller particle sizes of certain construction sands through mechanical force, but through the mechanical sand-making process, through the control of the sand-making process, the larger When the particles change into fine particles, a certain gradation can be formed and controlled at one time, so that the particles will form a step gradation of large, medium, small and powder, so as to meet the needs of concrete, mortar and other building aggregate profiles with a certain particle size. Mechanism-made high-quality sand for construction. [0003] In the existing sand making process, the stones contain a certain amount of fine sand, and the stones entering the impact sand making ma...

AI Technical Summary

Problems solved by technology

[0003] In the existing sand making process, the stones contain a certain amount of fine sand, and the stones entering the impact sand making machine will reduce the impact efficiency due to the large amount of powder.

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