Multistage high-efficiency anti-blocking sand screening device

Abstract

The invention discloses a multistage high-efficiency anti-blocking sand screening device. The multistage high-efficiency anti-blocking sand screening device comprises a shell and a screen plate, wherein the upper part of the right side of the shell is connected to a feed hopper; a rotating drum is arranged in the shell; a screen mesh is arranged at the right side of the rotating drum; the screen plate is arranged below the screen mesh; and the upper part of the screen plate is leaned against a hair brush. The multistage high-efficiency anti-blocking sand screening device has the beneficial effects that hardened blocks in coarse sand are efficiently smashed by arranging the rotating screen drum and smashing cutter blades distributed in a staggering manner, thereby improving the sand screening efficiency of the screen drum and saving coarse sand raw materials; the multistage high-efficiency anti-blocking sand screening device is provided with a squeezing plate and a slag discharging opening which are used for collecting large-grained garbage screened out by the screen drum, thereby facilitating the continuous operation and improving the screening efficiency; the multistage high-efficiency anti-blocking sand screening device is provided with the reciprocating screen plate and the hair brush, and the hair brush is used for cleaning the screen plate in real time, thereby avoiding the blockage of the screen plate and improving the screening efficiency; the screening quality is improved through two-stage screening; and the multistage high-efficiency anti-blocking sand screening device is compact in structure and is suitable for screening small batches of coarse sand; and as the multistage high-efficiency anti-blocking sand screening device is provided with idler wheels, the multistage high-efficiency anti-blocking sand screening device is convenient to move and transport.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a multi-stage high-efficiency anti-clogging sand screening device. Background technique [0002] The sand sieving machine imitates the working principle of artificially using the inclined screen to screen sand. It adopts a flat rolling screen cylinder and ensures that the material flow can be continuously rolled for more than five circles between the multi-turn inner spiral blades in the screen cylinder, so that the sand material can be repeatedly screened. It is fully discrete and separated by tumbling and sliding; it is different from the pushing and burying of large and small materials caused by inclined roller sieves, and the screening process is rushed; it is also different from the vibration and mixing of large and small materials caused by inclined vibrating screens. [0003] After preliminary screening, the traditional coarse sand does not meet the quality requiremen...

AI Technical Summary

Problems solved by technology

[0003] After preliminary screening, the traditional coarse sand does not meet the quality requirements of construction sand, and further screening is required. The traditional sand screening machine has a large volume, occupies a large area, is not easy to move and transport, and has a high cost of use. It is not economical to carry out sand screening operations in small batches; in addition, traditional sand screening machines cannot handle the agglomerates in the coarse sand well, and often use sieve plates to directly screen out the agglomerates, resulting in waste of coarse sand raw materials, or The use of manual tools for crushing is low in efficiency; the traditional sand screening device uses one of the rotating screen drum or vibrating screen plate to screen sand. The screen drum type device can achieve efficient separation of garbage, and the screening quality is low. Vibrating screen plate type The screening effect of the sand screening device is better, but the sieve plate is easy to be blocked, and high-frequency cleaning is required, and the efficiency is low

Images