Rotary screen sand box

Abstract

The invention discloses a rotary screen sand box. The box comprises a box body; a feeding hopper communicates above the box body, and a throwing roller is arranged in the box body and below the feeding hopper; conical toothed plates are arranged on the right side of the throwing roller in the box body; material shaking plates are arranged below the throwing roller in the box body, and conical screen cylinders are arranged below the material shaking plates. According to the box, the throwing roller and the conical toothed plates are arranged, so that the hardened sand blocks are subjected to impact crushing, subsequent screening is facilitated, and the trouble of manual grinding is avoided. The material shaking plates with the upper vibration and the lower vibration is arranged, the crushedscreen is vibrated to carry out slowly blanking, the blanking speed is reduced, and the screening effect is guaranteed; a conical screen cylinder and an annular screen mesh are arranged, the separation of the stones and the fine sand is accelerated by a centrifugal force effect, and the screening efficiency and the screening effect are improved.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a rotary sand screening box. Background technique [0002] In the field of construction, after the sand is transported to the construction site, it needs to be screened before use. The traditional sand screening method is to manually use tools such as shovels to throw the sand to the screen for manual screening, which not only consumes a lot of physical strength, The screening efficiency is very low; with the advancement of technology, there are various sand screening machines on the market, which greatly increase the speed of sand screening. Sand screening machines generally use vibrating sieve plates and rotating drums to screen sand. The sand blocks cannot be screened well, and the hardened sand blocks need to be crushed manually, and then screened, which reduces the efficiency of sand screening. In addition, the traditional sand screening machine has low separation effic...

AI Technical Summary

Problems solved by technology

[0002] In the field of construction, after the sand is transported to the construction site, it needs to be screened before use. The traditional sand screening method is to manually use tools such as shovels to throw the sand to the screen for manual screening, which not only consumes a lot of physical strength, The screening efficiency is very low; with the advancement of technology, there are various sand screening machines on the market, which greatly increase the speed of sand screening. Sand screening machines generally use vibrating sieve plates and rotating drums to screen sand. The sand blocks cannot be screened well, and the hardened sand blocks need to be crushed manually, and then screened, which reduces the efficiency of sand screening. In addition, the traditional sand screening machine has a low separation efficiency for stones, resulting in low overall screening efficiency.

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