Double-layer distribution disc of flour screening device

Abstract

The invention provides a double-layer feed spreading tray of a powder selecting machine. The double-layer feed spreading tray comprises an upper tray body and a lower tray body in up-and-down concentric arrangement; a protrudent feed division convex ring is arranged on the upper tray body; a plurality of evenly distributed feed division ports are arranged on the upper tray body of the inner side of the feed division convex ring; and a connecting pipe connected with the upper tray body and the lower tray body is arranged between the upper tray body and the lower tray body of the inner side of each feed division port. The upper tray body and the lower tray body on the inner side of the connecting pipe are provided with a plurality of evenly distributed hollowed-out holes. The inner side of each feed division port of the upper tray body is provided with a protrudent sealed convex ring. As the double-layer feed spreading tray adopts a double-layer structure, the double-layer feed spreading tray effectively improves the dispersion area and a dispersion region of a powder body material and in particular improves the dispersion of the powder body material in vertical direction; and the powder body material thrown and spread by the lower tray body is raised upwards under the action of gyrally rising airflow and impacts a material cake spread out by the upper tray body so that the material cake is easier to disperse, thereby improving the powder selecting effect and the working efficiency of the powder selecting machine.

Description

technical field [0001] The invention relates to a powder sorting device, in particular to a double-layer material spreading plate of a powder sorter. Background technique [0002] At present, the powder classifier used for classification and separation of powder materials mainly throws the powder to the powder selection area through a high-speed rotating spreading disc. Under the action of the high-speed rotor and air flow, the fine powder is discharged from the air outlet to the The subsequent dust collector is collected, while the coarse powder falls into the ash hopper below. Because the existing spreading disc is usually a single-layer disc body, the thickness of the sprinkled material cake is relatively thick, the dispersion is poor, the product quality is difficult to control, and the powder selection efficiency is low. For this reason, the applicant once invented the invention patent that the patent No. is 02264308.7, and the name is the radial type material spreadin...

AI Technical Summary

Problems solved by technology

Because the existing spreading disc is usually a single-layer disc body, the thickness of the sprinkled cake is relatively thick, the dispersion is poor, the product quality is not easy to control, and the efficiency of powder selection is low

For this reason, the applicant once invented the invention patent that the patent No. is 02264308.7, and the name is the radial type material spreading disc of the powder classifier. A number of distribution plates; although it increases the dispersion area of ​​the powder material in the radial direction to a certain extent, improves the dispersion of the powder material, and also enhances the wear resistance of the spreading plate, but for the spreading plate in The dispersion of materials in the longitudinal direction has not been improved

Images