Machine-made sand production technique and production system used for implementing production technique

Abstract

The invention relates to the field of sand making, in particular to a machine-made sand production technique and a production system used for implementing the production technique. The machine-made sand production system comprises a sand making machine and a screening machine. A powder sorting and grading system used for sorting to-be-sorted materials output by the sand making machine is arrangedbetween the sand making machine and the screening machine. The powder sorting and grading system is provided with a to-be-sorted material inlet, a stone powder output port and a to-be-screened mixtureoutput port communicating with an inlet of the screening machine. The machine-made sand production technique comprises the step that the to-be-sorted materials output by the sand making machine are sorted through the powder sorting and grading system. According to the machine-made sand production technique and the production system used for implementing the production technique, the to-be-sortedmaterials crushed by the sand making machine are sorted through the powder sorting and grading system and then subjected to dust removing, the loads of the screening machine are reduced, dust with a high moisture content is prevented from blocking a screen mesh, meanwhile, energy consumption of a crushing system is reduced, and the system output is increased.

Description

technical field [0001] The invention relates to the field of sand making, in particular to a machine-made sand production process and a production system for implementing the production process. Background technique [0002] Manufactured sand refers to sand processed by sand making machines and other auxiliary equipment. Due to the limited resources of natural river sand, and excessive exploitation of river courses will seriously damage the ecological environment of the region, compared with natural river sand, many kinds of stones and tailings are discarded. Resources, etc. can be used to process machine-made sand. There are a wide range of sand sources, and machine-made sand has a complete gradation, which can be adjusted according to sand demand. Therefore, machine-made sand replaces natural sand is the general trend. The machine-made sand production line is usually composed of a feeder, a sand making machine, a vibrating screen and a belt conveyor. The part of the sand ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a machine-made sand production process to solve the technical problems of heavy screening machine load and easy blockage of the screen in the prior art. The present invention also provides a production system for implementing the above production process

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