A sand screening device for separating waste residue

Abstract

The invention discloses a sand screening device for separating waste slag, which comprises a box body, a feeding hopper and a driving motor; There are scraping plates distributed in a cross; the rotating shaft is located under the partition and is fixedly connected with a dispersing disc, and a conical screen cylinder is arranged under the dispersing disc, and a slag discharge pipe is connected to the lower end of the conical sieve cylinder. In the present invention, the uniform intermittent feeding of coarse sand is realized by providing a scraper plate and a partition plate, and by providing a dispersing plate, the coarse sand is evenly sprinkled on the inner wall of the conical screen cylinder, avoiding the accumulation of coarse sand on the surface of the screen, Ensure the screening effect and improve the screening efficiency; the present invention is equipped with a slag discharge pipe with a sieve hole at the upper end and a spiral plate to block and centrifugally separate the fine sand entering the slag discharge pipe to improve the screening effect.

Description

technical field [0001] The invention relates to the construction field, in particular to a sand screening device for separating waste slag. 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] The feeding speed of the screen cylinder of the traditional sand screening machine depends on the external device. When th...

AI Technical Summary

Problems solved by technology

[0003] The feeding speed of the screen cylinder of the traditional sand screening machine depends on the external device. When the input volume is large, coarse sand is prone to accumulate inside, which reduces the screening efficiency and screening effect of the screen cylinder. In addition, the fine sand may be mixed with the waste residue during the screening process. Discharge, the screening effect needs to be improved

Images