Ultra-fine powder ultrasonic linear screen

Abstract

The invention discloses an ultra-fine powder ultrasonic linear screen which comprises a feeding plate block, a linear screen set and a vibration supporting table. The linear screen set is arranged onthe upper surface of the vibration supporting table, the feeding plate block is arranged on the upper surface of the linear screen set, the linear screen set is formed by overlapping plurality of linear screens, the feeding plate block, the linear screen set and the vibration supporting table are of the same plane shape and size, interlayer contact faces are embedded and attached tightly, and sealing strips are attached between layers and attached on the outer surface. A screening system is of a linear screen structure, the problems of multi-layer screening are better solved, and various kindsof products are separated at the same time in one screening system. The vibration mode has the characteristics of being high in frequency and low in amplitude, friction between powder and a net faceof a metal screen net is small, and the powder surface can be better protected. Double vibration motors and an ultrasonic generator are adopted, various working modes are achieved, and the movement locus of powder can be adjusted.

Description

technical field [0001] The invention belongs to the technical field of vibrating sieves, in particular to an ultrafine powder ultrasonic linear sieve. Background technique [0002] Ultrafine powder is widely used in today's process production. The powder produced by physical manufacturing methods needs to be sieved according to the particle size, usually by ultrasonic vibrating sieve. Ultrasonic vibrating screen is a device that vibrates the vibrating screen through an ultrasonic transducer, superimposed on the screen surface to form a high-frequency and low-amplitude ultrasonic vibration wave, when the ultrafine powder is close to the screen surface, it receives ultrasonic acceleration and improves the material The dispersibility when passing through the sieve keeps the material in a suspended state on the sieve surface, the particles larger than the sieve mesh are sieved to the discharge port, and the particles smaller than the sieve mesh fall through the mesh, especially ...

AI Technical Summary

Problems solved by technology

At present, ultrasonic circular vibrating sieves are commonly used in the screening of ultrafine powders, which make the powders move away from the center of the circle, and can only effectively separate the fine powders of 25 microns to 150 microns. The powders are easily damaged by collision and friction during screening, and due to the circular The type vibrating screen adopts an eccentric motor, and the equipment will have a tendency to swing left and right when in use, and it is impossible to superimpose multi-layer screens to achieve the purpose of screening powders of various particle sizes

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