River sand screening device for construction

Abstract

The invention discloses a river sand screening device for construction. The sand screening device comprises a sand feeding hopper, a drying cylinder, a primary screening device and a secondary sand screening device, the drying cylinder is mounted at the upper end of a bracket; the drying cylinder is of a double-layer hollow structure, a heating block is arranged between the outer cylinder wall andthe inner cylinder wall of the drying cylinder; one end of the drying cylinder is connected with a sand inlet hopper; the other end of the drying cylinder is communicated with the primary screening device; the primary screening device is a sand screening barrel; the sand screening barrel is installed on a supporting frame, first screening holes are formed in the side wall of the sand screening barrel, the second-stage sand screening device comprises a swing frame and a sand filtering plate, a sand screening plate is fixed to the upper end of a swing frame, second screening holes are formed inthe sand screening plate, the swing frame is connected with the supporting frame and located below the sand screening barrel, and the sand screening plate and the sand screening barrel are opposite in inclination direction. The problem that wet sands with small particles are mutually adhered is solved, the working efficiency is improved, the screening effect is improved, the utilization rate of the sand is increased, waste is avoided, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a river sand screening device for construction. Background technique [0002] River sand is inseparable from construction projects. River sand is an indispensable part of construction projects. River sand is used as building materials in the construction process. Since the particle sizes of river sand are different, different particle sizes need to be selected according to different construction requirements. trail of sand. [0003] The current sand screening device is mainly completed by means of a screen, and the sand slides from the screen to filter sand of different diameters. However, the water content in the sand is generally high, and the wet sand has a certain viscosity, which sticks to each other. When the existing screening device screens the wet sand, the screening efficiency is low, and the sand needs to be repeatedly screened. Sifting, wasting a lot ...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides a river sand screening device for construction, which solves the problem of mutual adhesion of wet sand with small particles, speeds up the screening speed and screening rate, saves time, and improves improved work efficiency

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