A kind of artificial sand manufacturing process and device

Abstract

The invention discloses an artificial sand manufacturing process and device. The process includes the following steps: coarse crushing of raw materials, sand selection, sand and gravel grading, separation of fine sand, stone powder, and mud powder, stone powder grading, and finished product production. Sand and gravel, 0.6-3mm gravel, 0.075-0.6mm fine sand, and 0.016-0.075mm stone powder are processed by a wet mixer and transported to the refined sand storage tank. The device includes a coarse crushing mechanism, a storage mechanism, a sorting and grading mechanism, a fine crushing mechanism, and a rock mud powder separation mechanism. The coarse crushing mechanism includes a steady flow bin and a high-load sand making machine. powder warehouse, stone powder warehouse, high-quality sand storage tank, the sorting and grading mechanism includes a V-shaped sand separator and a grading adjustment module, and the fine crushing mechanism includes a steady flow bin, a high-load sand making machine, and a high-speed sand making machine. The stone mud powder separation mechanism includes an ordinary powder separator, a cyclone, an ultra-fine powder separator, and a bag filter. The invention has flexible gradation adjustment control technology, precise control of stone powder content, good separation effect of mud and stone powder, and is environmentally friendly.

Description

technical field [0001] The invention belongs to the field of machine-made sand, and in particular relates to a manufacturing process and device for artificial sand with reduced waste of water resources and adjustable gradation. Background technique [0002] Artificial sand making refers to the use of mechanical equipment to beat stones into stones in the sand making machine, and the process of stones hitting iron turns stones into sand. The particle surface of artificial sand is rough and angular, the combination of aggregate, cement and aggregate is good, and the mechanical bite force is high, so the concrete with artificial sand is stronger than the concrete with natural sand. After the sand making machine completes sand making, the sand produced is screened through a metal mesh screen. The metal mesh screen divides the sand into sand products of different diameters according to the different sizes of the mesh. The sand material whose size meets the requirements of artif...

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Problems solved by technology

[0007] In view of the above-mentioned deficiencies existing in the prior art, the technical problem to be solved by the present invention is that the existing artificial sand making process adopts a wet method to remove the mud powder, the waste of water resources is serious, labor-intensive, and the sand content of various sizes cannot be adjusted, and it needs to be processed in a later stage. detection, need to install additional dust removal facilities

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