Sand making technology of sandstone

Abstract

The invention relates to a sand making technology of sandstone, which comprises the steps of taking a material, breaking, screening, and performing stone and powder separation, wherein in the step of taking the material, limestone with the particle size below 50mm is selected; in the step of breaking, the limestone with the particle size below 50mm is put in a sand making machine, and clear water with the volume more than three times that of the limestone is added, mixed and smashed; in the step of screening, a smashed mixture is put in a screening machine for screening treatment; and in the step of the stone and powder separation, the screened mixture is subjected to water washing to form finished sand. According to the sand making technology, the high-quality artificial sand is manufactured; hardware consumption in a sand making process is reduced greatly; the sand making efficiency is improved; the sand making cost is lowered; noise and dust pollution in the sand making process are reduced; and a requirement of a market at present is met.

Description

technical field [0001] The invention relates to a sandstone sand making process. Background technique [0002] As an essential component of building materials such as concrete and mortar, fine aggregate refers to aggregates with a particle size below 4.75 mm, commonly known as sand. According to the source of production, sand is divided into two types: natural sand and artificial sand. Natural sand is formed by natural weathering, water flow handling, sorting, and accumulation of rock particles with a particle size of less than 4.75mm, including river sand, lake sand, mountain sand and desalinated sea sand. Artificial sand is a general term for machine-made sand and mixed sand after soil removal treatment. The fine aggregates used in building materials in the past are basically natural sand, but natural sand resources are a local resource. With the increasing development of infrastructure, natural sand resources have gradually decreased in many areas of our country, and ev...

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Problems solved by technology

[0003] The current sand making process is to put the stone into the sand making machine and crush it directly. Sometimes it needs to go through several crushing processes in order to meet the requirements, and then it needs to be separated by stone powder. Dust emission and environmental pollution. On the one hand, the hardware of the sand making machine consumes a lot and is frequently replaced, which is time-consuming and expensive. On the other hand, the efficiency is low and the crushing effect is not ideal. A sand making process is urgently needed to overcome these problems. question

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