Sand classifying crushing and screening machine for civil engineering

Abstract

The invention discloses a sand classifying crushing and screening machine for civil engineering. The machine adopts the design principle of combining sand classifying screening and sand crushing. During work, raw sand enters an inner cavity of a screening cylinder from a feed hopper, the raw sand is continuously screened through the screening cylinder doing rotating movement, the screened sand grains fall into a first material guiding plate and are discharged from a first sand discharging port, the screened large-particle raw sand can continuously move towards a large-end of the screening cylinder in the rotating process of the screening cylinder, and then enters a sand grinding space through a material guiding port, the ground or crushed raw sand falls on a screen plate from a material discharging port, the screen plate undergoes secondary screening under the action of the excitation of an eccentric wheel part, the screened sand grains fall into a second material guiding plate and aredischarged from a third sand discharging port, and the remaining raw sand passes through the screen plate to be discharged from a second sand discharging port, so that the requirement for the use function of sand crushing and sand classifying screening of the raw sand is effectively achieved, and moreover, the machine has the characteristics of being compact in structure, convenient to use, highin working efficiency and complete or full in classification, and is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of civil engineering apparatus and equipment, in particular to a sorting and sand screening machine for civil engineering. Background technique [0002] The sand screening machine is an indispensable equipment on the construction site of civil engineering. Due to the limitation of the structure, the current sand screening device often relies on a piece of inclined metal mesh for screening, but the screening area is small and cannot be fully screened. To filter the sand, it is often necessary to sieve the filtered sand a second time, resulting in time-consuming and laborious, and the sieving efficiency is too low; in addition, in order to be applied to various construction sites, to meet the needs of different constructions for fine materials such as sand According to the demand, sand and other fine materials are often classified with different particle sizes, and then a classification sand screening machine ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a kind of classification sand screening machine for civil engineering, which adopts the design principle of combining classification screening and crushing sand, which can effectively solve the problems of insufficient classification and screening in the prior art. The problem of low work efficiency, and the ability to crush sand, can effectively improve the utilization rate of raw sand, and has the characteristics of compact structure and convenient use

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