A triboelectric separator filled with packing friction plate

Abstract

The invention discloses a friction electric separator filled with packing friction plates. The friction electric separator comprises an electrostatic separation cavity, wherein the electrostatic separation cavity is a cuboid-shaped four-side cavity made of insulating material, two opposite side surfaces of the electrostatic separation cavity are provided with metal electrode plates in the long axis direction respectively, the two metal electrode plates are connected with a high-voltage direct-current power supply or a ground through wires, and a uniform high-voltage electrostatic field can begenerated in the electrostatic separation cavity; the multiple packing friction plates are installed in the electrostatic separation cavity, the multiple packing friction plates are parallel to the long axis direction of the electrostatic separation cavity and are parallel to one another, and parallel surfaces of the packing friction plates are not parallel to the metal electrode plates; and a product collecting bin is arranged at the end, in the long axis direction, of the electrostatic separation cavity. According to the friction electric separator, fine-grained powder material containing atleast two different components, in particular to the powder material which is smaller than 1000 microns in particle size, can be continuously and efficiently sorted into at least two products.

Description

technical field [0001] The invention belongs to the technical field of solid particle separation, and specifically relates to a method for continuously sorting a certain type of solid particles with similar electrical properties from a mixture of solid particles by using the difference in triboelectric charging characteristics of particles with a particle size of less than 1000 microns A triboelectric separator filled with filler friction plates. Background technique [0002] Powder materials have larger specific surface area and reactivity, and many industrial raw materials in various industries usually need to be made into fine powder before use. In some application scenarios, because some components in the material will have an adverse impact on subsequent operations, it is desirable to remove them before entering the final product application to improve the utilization effect. Such as: impurity minerals such as pyrite and kaolin in pulverized coal for injection in therm...

AI Technical Summary

Problems solved by technology

[0007] At present, the mainstream of triboelectric separation technology research generally uses airflow as the medium to carry materials for charge-separation, but it is very difficult to fully and selectively charge the particles carried in the airflow, and the charge of the particles after charging is very difficult. Very easy to dissipate so that the material is not fully charged

From the perspective of industrial application, existing technologies and equipment generally have defects such as low particle charging efficiency and poor sorting effect, resulting in low equipment processing capacity and poor economy, which cannot meet the requirements of industrial applications.

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