Continuous generation system for discrete microparticleswith static electricity

Abstract

The invention discloses a continuous generation system for discrete microparticles with static electricity, and belongs to the technical field of particle static electricity. The system comprises an air particle conveying assembly, a microparticle static electricity endowing assembly and an anti-agglomeration assembly which are connected in sequence; the air particle conveying assembly comprises an air inflow pipeline and a microparticle storage bottle; the microparticle static electricity endowing assembly comprises a voltage generator, a static electricity generation chamber, a linear electrode, a circular mesh electrode and an insulating pipe, wherein the linear electrode is connected with the voltage generator through a wire; and the anti-agglomeration assembly comprises a conical spray pipe, an impact table and a particle impact chamber. Continuous air particle flow is generated through the air particle conveying assembly, microparticles in the air particle flow can be charged through the microparticle static electricity endowing assembly, after the air particle flow is ejected out of the conical spray pipe, and the microparticles agglomerated due to static electricity can be dispersed through multiple times of collision between the impact table and the particle impact chamber. The continuous generation system is simple in structure, is convenient to operate, and high in practicability, and can continuously generate discrete and non-agglomerated microparticles with static electricity.

Description

technical field [0001] The invention relates to the technical field of microparticle electrostatics, in particular to a continuous generation system of electrostatically charged discrete microparticles. Background technique [0002] Microparticles are a widespread substance, such as dust and industrial dust, which are usually used in scientific research fields such as energy, chemical industry, aerospace and pharmaceuticals. Micro-particles with static electricity have advantages and disadvantages. On the one hand, the use of micro-particles with static electricity can improve the efficiency of printing and dust removal, and promote the development of related technologies. The surface of equipment or important instruments will affect the normal operation of the equipment or even damage the equipment and instruments. Therefore, the study of microparticle static electricity has important practical reference value for inhibiting or eliminating microparticle adhesion and ration...

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Problems solved by technology

[0003] In the existing micro-particle electrostatic research methods, triboelectric charging or corona charging is generally used to generate static electricity on micro-particles. Although friction charging has a simple structure, the charging amount of micro-particles is uneven and unstable; corona charging is currently the most widely used charge. The electric method uses high pressure to ionize the air to generate ions, which are attached to the microparticles to charge the microparticles. However, this charging method is single. When a large number of microparticles pass through the charging area, some microparticles may not be fully connected to the ions. The contact will leave the charging area under the action of the airflow, so that the micro-particles are not fully charged; in addition, the above-mentioned research methods do not consider the problem that the micro-particles are easy to agglomerate after being charged with static electricity, which may lead to errors in the electrostatic research of micro-particles

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