Device and method for measuring static electricity generation by impact of particles

A particle collision and particle technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problem of particle static electricity

Active Publication Date: 2018-07-06
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even in remote space, there is a problem of particle static electricity: the dust storm on the moon or Mars will cause the particle charge in space to be much larger than the particle charge on the earth in order of magnitude
Therefore, ignoring the amount of charge before the collision of sliding particles seriously affects the measurement accuracy of the static electricity generated by the collision of two particles

Method used

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  • Device and method for measuring static electricity generation by impact of particles
  • Device and method for measuring static electricity generation by impact of particles
  • Device and method for measuring static electricity generation by impact of particles

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Embodiment Construction

[0031] The present invention will be further explained below in conjunction with the embodiments and the accompanying drawings.

[0032] Such as figure 1As shown, the device for measuring static electricity generated by particle-particle collisions includes a base 1, a bracket 2, a clamp 4, a circular tube slide rail 5, a general Faraday cup 6, a Faraday cup 7, an electrometer 9, a computer 12, and sliding particles 13 And suspension particle 16; Support 2 comprises the support vertical section 21 that is installed on the base 1 and the support horizontal section 22 that is fixed on the support vertical section 21, and clamp hoop 4 one ends are installed on support vertical section 21 by knob 3 On the other end, the round tube slide rail 5 is fixedly installed.

[0033] The general type Faraday cup 6 is made up of two coaxial stainless steel circular tubes: an outer tube 61 and an inner tube 62; as figure 2 , image 3 As shown, the outer tube 61 and the inner tube 62 are f...

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Abstract

The invention discloses a device and method for measuring static electricity generation by the impact of particles. An oblique sliding rail is arranged by using a pedestal, a bracket, a clamp and a circular tube sliding rail. A general Faraday cup, a Faraday cup, and an electrometer are connected. A sliding particle passes the general Faraday cup through the sliding rail and thus an electric charge of the sliding particle before an impact is measured; the sliding particle leaves the sliding rail, impacts on a suspension particle, and then falls into the Faraday cup to measure an electric charge of the sliding particle after the impact. The electric charge before the impact is subtracted from the electric charge after the impact, so that the electrostatic charge generated after the impact of the two particles is calculated accurately. According to the invention, the electrostatic charge generated after the impact on the suspension particle can be measured and mutual verification with the electrostatic charge amount generated after impact with the sliding particle is realized.

Description

technical field [0001] The invention belongs to the field of collision electrification of gas-solid two-phase flow solid particles, and relates to a technology for measuring the amount of static electricity generated by particle-particle collisions. Background technique [0002] Particle electrification is a ubiquitous phenomenon in industrial production processes. In the process of particle crushing, screening, granulation and transportation, due to the violent collision and friction between particles and between particles and walls, the charging phenomenon of particles is very obvious. A large amount of electrostatic accumulation of particles will lead to agglomeration and wall sticking, and even electrostatic discharge, causing serious accidents such as fire and explosion. [0003] The problem of particle charging not only widely exists in people's production and life, but also often occurs in nature due to the phenomenon of static electricity caused by particle-to-parti...

Claims

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Application Information

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IPC IPC(8): G01R29/24
CPCG01R29/24
Inventor 梁财胡驾纬周群王延涛陈晓平吴新刘道银段伦博
Owner SOUTHEAST UNIV
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