Roller screen

Abstract

The invention discloses a roller screen. The roller screen comprises two screen roller mounting seats which are oppositely arranged, wherein a cylindrical screen roller is arranged between the two screen roller mounting seats, the inner wall of the inlet end of the screen roller is provided with a plurality of strip-shaped inlet scraping blades which are uniformly distributed in a circumferential direction, the inner wall of the outlet end of the screen roller is provided with a plurality of strip-shaped outlet scraping blades which are uniformly distributed in a circumferential direction; the inlet scraping blades and the outlet scraping blades are spirally extended along the inner wall of the screen roller, the rotating directions of the inlet scraping blades and the outlet scraping blades are opposite, and one sides of each inlet scraping blade and each outlet scraping blade are tightly attached to the inner wall of the screen roller, the other sides of each inlet scraping blade and each outlet scraping blade are suspended, and the front ends and the rear ends of the suspending sides of each inlet scraping blade and each outlet scraping blade are twisted in opposite directions. According to the roller screen, due to the fact that the inlet scraping blades and the outlet scraping blades are additionally arranged, the falling difference of the canna edulis ker along with the rotating process of the screen roller can be increased, thus facilitating the separation of soil from the surface of the canna edulis ker; in addition, the mud removal time is effectively controlled, thus achieving better effect of mud removal.

Description

technical field [0001] The invention belongs to the field of agricultural equipment, and in particular relates to a drum screen. Background technique [0002] Trommel screen is a kind of machinery widely used in sorting technology. It controls the sorting by particle size, and the sorting accuracy is high. When the material enters the screen cylinder, due to the inclination and rotation of the screen cylinder, the material on the screen surface is turned and rolled, the product under the screen is discharged from the screen hole of the screen cylinder, and the product on the screen is discharged through the discharge port at the tail of the screen cylinder. [0003] In the field of modern agriculture, people use drum sieves to remove the sticky soil on the surface of canna taro to save manpower, but there are the following defects when using traditional drum sieves for desilting: 1. Due to the inclined placement of the screen drum, the banana taro stays in the screen drum T...

AI Technical Summary

Problems solved by technology

[0003] In the field of modern agriculture, people use drum sieves to remove the sticky soil on the surface of canna taro to save manpower, but there are the following defects when using traditional drum sieves for desilting: 1. Due to the inclined placement of the screen drum, the banana taro stays in the screen drum The desilting time is too short to control the desilting time according to the actual situation; 2. The quality of the canna taro is relatively large, and it mainly stays in the lower part of the screen cylinder. During the rotation with the screen cylinder, the drop is small, and the soil is not easy to separate from the surface of the canna taro. The above problems lead to When the drum sieve is used to remove the mud from the plantain taro, the mud removal is not complete and the effect is poor

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