Gravel multi-stage screening machine for building construction

Abstract

The invention discloses a gravel multi-stage screening machine for building construction. The machine comprises a bottom plate, wherein, supporting legs are fixed to the bottom of the bottom plate, a screening shell is fixed to the top of the bottom plate, a primary screening mechanism and a secondary screening mechanism are sequentially arranged in the screening shell from top to bottom, the primary screening mechanism comprises a second mounting frame and a first mounting frame, the second mounting frame is fixed to the inner wall of one side of the screening shell, the first mounting frame is fixed to the inner wall of the other side of the screening shell, a first screening plate is jointly slidably arranged between the cavity inner wall of the second mounting frame and the cavity inner wall of the first mounting frame, and the first screening plate is obliquely arranged. According to the machine, by arranging the primary screening mechanism and the secondary screening mechanism, the effect of carrying out multi-stage screening on gravel is achieved, meanwhile, screening holes can be prevented from being blocked, and therefore the screening efficiency is indirectly improved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a multi-stage screening machine for sand and gravel used in building construction. Background technique [0002] Most of the sand and gravel are manually ground from some stones, so the particles are relatively large and need to be screened before use. Sieve sand and gravel of different sizes for later use. [0003] However, most of the existing screening equipment cannot screen sand and gravel for multiple lengths at the same time. It needs to be screened multiple times to screen sand and gravel of different sizes. Not only is the work efficiency low, but also a waste of time. During the process, because some relatively sharp sand and gravel may be stuck in the screen hole, and most vibratory screening may cause the sand and gravel to get stuck tighter and tighter, which will cause blockage of the screen hole and reduce work efficiency. [0004] In view of this, ...

AI Technical Summary

Problems solved by technology

[0003] However, most of the existing screening equipment cannot screen sand and gravel for multiple lengths at the same time. It needs to be screened multiple times to screen out sand and gravel of different sizes. During the process, some sharp sand and gravel may get stuck in the sieve hole, and most vibratory screening may cause the sand and gravel to get stuck tighter and tighter, which will cause blockage of the sieve hole and reduce work efficiency

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