High-quality sand crushing production technique

Abstract

The invention relates to a high-quality sand and gravel crushing production process. The steps are as follows: first, the sand and gravel aggregates are subjected to primary screening, divided into different particle sizes, and then sent to impact crushers for primary crushing and sent to The impact crusher performs secondary crushing, and then performs secondary screening on the materials to produce several kinds of product materials. Among them, the product materials exceeding the particle size requirements are returned to the upper level for crushing and rework, and a part of the finished materials that meet the particle size requirements are subjected to third-stage crushing. broken. Compared with the traditional technology, the present invention makes full use of the working characteristics of various types of crushers by subdividing incoming materials, so that each crusher can work efficiently and stably at full load at the same time, and then subdivide the product materials to carry out Secondary or even tertiary treatment can increase the output of fine sand, shape the sand and gravel, and control the dust content of the sand and gravel through the dust removal system, thus ensuring the high quality of the sand and gravel material, which can meet the requirements of various high-quality products in various industries. gravel requirements.

Description

technical field [0001] The invention relates to a sandstone production process, in particular to a sandstone crushing production process. Background technique [0002] With the continuous development of the economy, the quality requirements of sand and gravel in the construction industry are also getting higher and higher, because the quality of sand and gravel largely determines the quality of construction. The traditional sand and gravel production adopts a one-way process, that is, the material is directly screened and discharged after being crushed by a single crusher, (such as figure 1 As shown), the crushing efficiency of crushed stones in the whole process is not high, the types of sandstones produced are limited (up to four kinds of sandstones can be produced), the output of fine sands is low, and there are also uneven particle sizes, need for shaping and containing The problem of excessive dust. Contents of the invention [0003] The technical problem to be solv...

AI Technical Summary

Problems solved by technology

The traditional sand and gravel production adopts a one-way process, that is, the material is directly screened and discharged after being crushed by a single crusher, (such as figure 1 As shown), the crushing efficiency of crushed stones in the whole process is not high, the types of sandstones produced are limited (up to four kinds of sandstones can be produced), the output of fine sands is low, and there are also uneven particle sizes, need for shaping and containing The problem of excessive dust

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