Novel classified sand screening machine for civil engineering

Abstract

The invention discloses a novel classified sand screening machine for civil engineering. The structure principle that three layers of vibration sand screening plates are sequentially arranged in an inner cavity of a shell from top to bottom at intervals is adopted, raw sand enters a first vibration screening plate from a feeding hopper on the top of a shell, the sand falls onto a second vibrationscreening plate after being screened by the first vibration screening plate, and the sand falls onto a third vibration screening plate after being screened by the second vibration screening plate; filtered sand grains are guided by a first guiding plate, a second guiding plate and a third guiding plate to be guided out of a first sand outlet, a second sand outlet and a third sand outlet in a classified manner; residual raw sand is guided through the third vibration screening plate to be guided out of a fourth sand outlet, accordingly, three-time screening and filtering are finished, sufficientscreening or classified filtering of the raw sand is effectively achieved, and the raw sand screening thoroughness is improved; and meanwhile the novel classified sand screening machine has the beneficial effects of being compact in structure layout, reasonable in integral design, small in occupied space, high in work efficiency and high in practicability.

Description

technical field [0001] The invention relates to the technical field of civil engineering mechanical equipment, in particular to a novel classification sand screening machine for civil engineering. Background technique [0002] Sand screening equipment is an indispensable device on the construction site. Due to structural limitations, the current sand screening device often relies on a metal mesh placed at an angle for screening, but its screening area is small and cannot be fully used. 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 , often classify sand and other fine materials with different particle sizes, and then develop the classification and sieving equipment that requires manual use to sieve them. [0003] The...

AI Technical Summary

Problems solved by technology

This sorting sand screening machine has the advantages of being easy to move and fast sand screening, and is suitable for the classification of fine materials such as sand with different particle sizes; but the civil engineering classification sand screening machine of the above-mentioned technical scheme exists: 1) three-section layered structure is set , and sieve the sand layer by layer, and then the original sand of the first layer will be discharged without being screened due to reasons such as more sand entering or thicker deposition, and there is a problem of insufficient screening; 2) Each layer of filter screen The sandbox is not tilted, and the filtered sand is completely discharged through vibration, and the sand screening efficiency is not high.

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