Sand production method, sand production system and sand production equipment

Abstract

The invention discloses a sand production method. The sand production method comprises the following steps: raw materials are flushed through air currents to strip mud attached on the raw materials toform dispersed mud, and the dispersed mud is separated from the raw materials; the separated raw materials are crushed; the crushed materials are sorted; and qualified sand is sorted out. The sand production method can effectively prevent water resource wastes and environmental pollution caused by washing of sand through water in the sand production process; and the quality of the sand is better.The invention further provides a sand production system. The invention further provides sand production equipment.

Description

technical field [0001] The present application relates to the technical field of aggregate preparation, in particular to a sand-making method, a sand-making system, and sand-making equipment. Background technique [0002] Aggregate is a granular loose material that acts as a skeleton or filling in concrete, and is a very important raw material in construction. Among them, the aggregate with a particle size greater than 4.75mm is coarse aggregate, that is, stone; the aggregate with a particle size below 4.75mm is fine aggregate, that is, sand; and the particles with a particle size less than 0.075mm are generally mud, here The mud is a combination of fine dust, silt, clay, etc. [0003] Among them, sand is mainly divided into natural sand and machine-made sand. At present, with the depletion of natural sand resources and the gradual prohibition of mining, machine-made sand is increasingly used in construction and engineering fields to replace natural sand. The source of raw...

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Problems solved by technology

[0005] To prepare machine-made sand in the prior art, after outputting the qualified sand, it is necessary to use water to clean the qualified sand. First, when the mud content or mud content in the machine-made sand is too high, in order to ensure the cleaning effect of the machine-made sand, a large amount of water is required. water, and the water after washing is polluted; secondly, the mud in the machine-made sand and the mud attached to the aggregate, especially some sand tailings or stone chips, have a larger mud content and are not easy to be cleaned by washing with water. The cleaning effect of the machine-made sand is not good, which affects the quality of the machine-made sand

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