Large combined type sand and gravel aggregate screening machine

Abstract

The invention discloses a large combined type sand and gravel aggregate screening machine, and relates to the technical field of sand and gravel aggregate screening. The large combined type sand and gravel aggregate screening machine is mainly aimed at solving the problem that an existing circular vibrating screen is not conducive to increasing the yield. The large combined type sand and gravel aggregate screening machine comprises screen body supporting columns, wherein a plurality of lower screen bodies and a plurality of upper screen bodies are fixedly arranged on the screen body supportingcolumns; the lower screen bodies and the upper screen bodies are rectangular solid structures and are inclined to the left lower side; the upper screen bodies are located right above the lower screenbodies; the upper screen bodies and the lower screen bodies are identical in number and are in one-to-one correspondence; a feeding hole is formed in the right side of the top of each upper screen body; the bottom of each upper screen body is opened; the top of each lower screen body is opened; and a plurality of layers of screen meshes are arranged in the upper screen body and the lower screen body. The large combined type sand and gravel aggregate screening machine realizes the substantial increase of the screening production capacity by arranging the plurality of upper screen bodies and lower screen bodies through the respective transverse combination of the upper screen bodies and the lower screen bodies and the upper and lower combination of the upper screen bodies and the lower screen bodies.

Description

technical field [0001] The invention relates to the technical field of sand and gravel aggregate screening, in particular to a large-scale combined sand and gravel aggregate screening machine. Background technique [0002] The current situation of the sand and gravel industry is still dominated by non-scale production. Under the new background of promoting the development of a new type of "industry-information-industry" strategy, the sand and gravel industry has intensively introduced a series of policies and guidelines from the country to the local area, mainly reflected in the following aspects: 1. Scale has become the mainstream. Second, greening is the direction. 3. Machine-made gravel is the main force. Fourth, reasonable and legal exploitation is the premise. Fifth, industrialization has become a trend. In this context, the sand and gravel industry is transforming and upgrading towards large-scale and environmental protection. [0003] The sand and gravel aggregat...

AI Technical Summary

Problems solved by technology

[0003] The sand and gravel aggregate line is developing towards large-scale and environmental protection, but the development of large-scale equipment is extremely unbalanced, especially when the vibration table of the circular vibrating screen in the aggregate screening link is too low, and the capacity of the circular vibrating screen is limited when it is raised. Technical constraints, first, the distance between the screens of the circular vibrating screen is relatively large, and the design of more than three layers will cause excessive volume; second, the extension of the width and length of the screen body will cause excessive weight and energy consumption of the vibrating screen (for example, The cross-sectional area of ​​the widening beam of the sieve body will increase geometrically)

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