Method and device for efficiently catching nanometer micro-particles

A particle, nano-micro technology, applied in the direction of external electrostatic separators, etc., can solve the problems of poor capture effect, high cost, complicated process, etc., and achieve the effect of effective capture, improved efficiency, and improved capture efficiency.

Active Publication Date: 2012-08-15
JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide a high-efficiency trapping method for nano-micro particles and a device for realizing

Method used

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  • Method and device for efficiently catching nanometer micro-particles
  • Method and device for efficiently catching nanometer micro-particles

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Experimental program
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Embodiment 1

[0039] The efficient collection method of nanoparticle of embodiment 1

[0040] First, the airflow containing nano-particles with a particle size ranging from 20nm to 10000nm enters the primary dust collection and charging area. The primary dust collection and charging area is equipped with an electrostatic precipitator that can charge the particles positively and negatively. After removing larger particles , the airflow containing particles is divided into two parts, so that some particles are positively charged, and some particles are negatively charged; the two-phase airflow mixes and enters the induced agglomeration zone. Due to the different charges of the particles, the particles attract each other and agglomerate into larger particles. In the area of ​​induced agglomeration, the probability of agglomeration of particles can be increased by changing the velocity and direction of the mixed airflow. After mixing, the airflow enters the secondary dust collection area and is...

Embodiment 2

[0042] Such as figure 1 As shown, a high-efficiency collection device for nano and micro particles includes a primary dust collection and charging unit 1 , an induced agglomeration unit 2 and a secondary dust collection unit 3 connected in sequence. The primary dust collection and charging unit 1 includes a positively charged plate type electrostatic precipitator and a load electric plate type electrostatic precipitator, and the induced agglomeration unit 2 is an airflow mixing channel whose inner diameter is smaller than that of the primary dust collection and charging unit . The secondary dust collection unit 3 is a plate electrostatic precipitator.

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Abstract

The invention relates to the technical field of particle dust removal, and in particular relates to a method for efficiently catching nanometer micro-particles and a device for realizing the method. The method comprises the following steps of: enabling particles to carry positive charges or negative charges, mixing airflows to increase agglomeration of particles, and trapping the particles. The device comprises a primary dust collection and charge unit, an induction agglomeration unit and a secondary dust collection unit, all of which are sequentially connected. The method for efficiently catching the nanometer micro-particles, disclosed by the invention, has the advantages of simple and continuous process, easiness for implementation and theoretical and practical application values. According to the method for efficiently catching the nanometer micro-particles and the device for realizing the method, disclosed by the invention, micro-particles can be effectively trapped, the efficiency of trapping the nanometer micro-particles with diameters of lower than 2.5 microns can be improved by at least 30%.

Description

technical field [0001] The invention relates to the technical field of particle dust removal, in particular to a method for efficiently collecting nano and micro particles and a device for realizing the method. Background technique [0002] With the rapid development of modern society, more and more mineral resources are transformed into industrial raw materials and products, and at the same time, more and more industrial wastes are thrown into nature. Particulate pollution is one of many pollutants. Particulate pollution has the following two sources: 1. Natural sources can be caused by ground dust (dust raised by strong winds or other natural effects); there are also volcanic eruptions, earthquake ash and forest fire ash; waves splashed by sea waves, sea salt particles etc. Meteorite dust from cosmic sources and biological particles such as pollen and spores. 2. The anthropogenic sources of particulate pollutants are mainly produced during production, construction, trans...

Claims

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Application Information

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IPC IPC(8): B03C3/12
Inventor 岳仁亮陈运法刘海弟杨洁
Owner JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENG
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