KR20150112886A - Micro particle separator - Google Patents

Micro particle separator Download PDF

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Publication number
KR20150112886A
KR20150112886A KR1020150043139A KR20150043139A KR20150112886A KR 20150112886 A KR20150112886 A KR 20150112886A KR 1020150043139 A KR1020150043139 A KR 1020150043139A KR 20150043139 A KR20150043139 A KR 20150043139A KR 20150112886 A KR20150112886 A KR 20150112886A
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South Korea
Prior art keywords
fine particles
electrode
electric field
unit
fine particle
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KR1020150043139A
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Korean (ko)
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KR101633086B1 (en
Inventor
이학용
이홍배
박일한
Original Assignee
주식회사 씨에스에너텍
성균관대학교산학협력단
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply

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  • Electrostatic Separation (AREA)

Abstract

A fine particle separating apparatus according to an embodiment of the present invention is provided with a main body through which air containing fine particles is moved and a main body which is located inside the main body and has one or more And a fine particle removing unit including an electrode layer, wherein the fine particle removing unit discharges the fine particles from the main body based on the dielectrophoresis.

Description

[0001] MICRO PARTICLE SEPARATOR [0002]

The present invention relates to a fine particle separation apparatus. Particularly, the present invention relates to an apparatus for separating fine particles using a moving electric field and a dielectrophoresis.

Recently, fine dust has been recognized as a serious social problem as it has become a major cause of respiratory diseases, cardiovascular diseases and skin diseases. The fine dust is classified into 'fine dust (PM-10)' with a particle diameter of about 10 μm or less and 'super fine dust (PM-2.5)' with a diameter of about 2.5 μm or less. In the case of ultrafine dust, And infiltrate into various places to induce various diseases. Accordingly, development of dust collecting technology for removing fine particles in the indoor pollutants as well as dust removal in industrial facilities is actively under way.

Electrostatic precipitator (ESP) among conventional dust collecting equipments has a high efficiency of collecting and collecting fine particles and has a low pressure loss and maintenance cost. Therefore, a large amount of dust such as a power plant, a steelmaking furnace, or an incinerator is generated And is used as a dust collecting facility of a large capacity facility.

1 is a conceptual diagram showing the principle of dust collection of a conventional electrostatic precipitator.

1, the electrostatic precipitator includes ionizing the fine particles and introducing the ionized fine particles between the collecting electrodes and attaching them to the collecting plate.

However, the electrostatic precipitator of FIG. 1 generates ozone or nitrogen oxide, which is a harmful substance to the human body through corona discharge in the ionization step, and the treatment flow rate of the fine particles is limited to about 3 m / s. Also, since the ionization step and the collection step of the fine particles are respectively performed, the size of the dust collecting facility is large and the initial investment cost is very large. This makes it economical for large-scale industrial facilities, but may be less economical for small-scale facilities such as households.

An object to be solved by one embodiment of the present invention is to simplify the structure of the fine particle separator and to reduce initial installation cost and maintenance cost.

An object to be solved by one embodiment of the present invention is to provide a device for separating fine particles which does not generate harmful substances.

Embodiments according to the present invention can be used to accomplish other tasks not specifically mentioned other than the above-described tasks.

According to an aspect of the present invention, there is provided an apparatus for removing fine particles, the apparatus comprising: a main body through which air containing fine particles move; and at least one electrode layer located inside the main body and separating fine particles from the air, , And the fine particle removing unit proposes a fine particle separating apparatus for discharging fine particles from the body based on dielectrophoresis.

Here, the electrode layer includes a first electrode portion that generates a first electric field, and a second electrode portion that generates a second electric field, and the first electric field and the second electric field, which are sequentially generated, The fine particles can be moved.

The apparatus may further include a power control unit for providing a variable voltage to the first electrode unit and the second electrode unit over time.

Also, the power source control unit may provide a two-phase voltage to the first electrode unit or the second electrode unit.

Also, the power supply control unit may provide the three-phase voltage to the first electrode unit or the second electrode unit.

In addition, the electrode layer may include a printed circuit board (PCB) or mesh type electrode.

In addition, the main body includes an inlet portion through which air containing fine particles is introduced, a passage portion through which air containing fine particles or air from which fine particles are removed, a first outlet portion through which air from which fine particles are removed, And a fine particle removing unit, and may include one or more second discharging units through which the fine particles separated through the fine particle removing unit are discharged.

In addition, the second discharge portion may include at least one fine particle removing portion having different electric field moving speeds.

According to one embodiment of the present invention, the structure of the apparatus for separating fine particles can be simplified, and initial installation cost and maintenance cost can be reduced. In addition, it is possible to solve the problem of generation of harmful substances in the conventional electrostatic precipitator and to improve the power efficiency.

1 is a conceptual diagram showing the principle of dust collection of a conventional electrostatic precipitator.
2 is an apparatus for separating fine particles according to an embodiment of the present invention.
3 shows a PCB type electrode according to one embodiment of the present invention.
4 shows an electrode in the form of a mesh according to one embodiment of the present invention.
5 is a conceptual diagram illustrating movement of fine particles by dielectrophoresis according to one embodiment of the present invention.
6 is a conceptual diagram showing an electrode unit to which a three-phase voltage is applied according to an embodiment of the present invention.
7 is a graph showing an electric field generation time and an electric field moving speed of an electrode part to which a three-phase voltage is applied according to an embodiment of the present invention.
FIG. 8 is a microparticle separation apparatus including at least one fine particle removing unit according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same reference numerals are used for the same or similar components throughout the specification. In the case of publicly known technologies, a detailed description thereof will be omitted.

In this specification, when a part is referred to as "including " an element, it is to be understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

In the present specification, 'fine particle' means a suspended particle (dust) in the air containing particles having a particle diameter of about 10 μm or less and containing various harmful substances to the human body.

In this specification, 'dielectrophoresis' means that a dielectric placed in a non-uniform electric field is moved by a force to a strong electric field. For example, if you bring a charged balloon or rod close to a piece of paper or water coming out of a faucet, you might get a piece of paper or water.

In this specification, the term 'moving electric field' means that when voltage is applied to a spatially distributed electrode, the electric field generated between a plurality of electrodes is sequentially moved to move the polarized fine particles.

2 is an apparatus for separating fine particles according to an embodiment of the present invention.

Referring to FIG. 2, the apparatus for separating fine particles includes a main body 100, a fine particle removing unit 200, and a power source control unit 300.

The main body 100 includes an inflow portion 110 through which air containing fine particles flows, a passage portion 120 through which air containing fine particles or fine particles are removed, And a second discharging unit 140 through which the fine particles collected through the fine particle removing unit 200 are discharged.

The fine particle removing unit 200 is located inside the passage part 120 and has one end connected to the second discharge opening 140.

The fine particle removing unit 200 includes at least one electrode layer. At this time, the electrode layer includes an electrode in the form of a printed circuit board (PCB) or an electrode in the form of a mesh.

3 shows a PCB type electrode according to one embodiment of the present invention.

4 shows an electrode in the form of a mesh according to one embodiment of the present invention.

Referring back to FIG. 2, the fine particle removing unit 200 includes a first electrode layer 210, a second electrode layer 220, a third electrode layer 230, , And a sixth electrode layer (260). The first electrode layer 210 to the sixth electrode layer 260 may include electrodes of the same shape (PCB type) as shown in FIG. 2. However, the present invention is not limited thereto, And may include electrodes of different types such as electrodes of the same type.

The fine particle removing unit 200 may further include a structure for preventing rediffusion of the collected fine particles.

The power control unit 300 provides a voltage to one or more electrode layers. At this time, different voltages may be provided to the respective electrode layers.

5 is a conceptual diagram illustrating movement of fine particles by dielectrophoresis according to one embodiment of the present invention.

Referring to FIG. 5, the electrode layer 210 includes at least one electrode portion, and generates a moving electric field through an electric field sequentially generated at one or more electrode portions. Specifically, the electrode layer 210 includes a first electrode portion 211 for generating a first electric field, a second electrode portion 212 for generating a second electric field, and the like. The first and second electric fields are sequentially To generate a moving electric field, and to move the fine particles by the moving electric field.

5, the polarization of fine particles in the air introduced through the inlet 110 occurs. Thereafter, the polarized fine particles are applied to the first electrode part 211 of the first electrode part 211, the second electric field of the second electrode part 212, and the third electrode part (not shown in FIG. 5) based on the dielectrophoresis (Not shown), and is discharged to the second discharge portion 140. The second discharge portion 140 discharges the first electric field.

5, the electric field of the first electrode unit 211 and the electric field of the second electrode unit 212 are the same, but the present invention is not limited thereto. The magnitude of the electric field of the second electrode 212 may be different from each other.

That is, through the voltage control of the power control unit 300, the mobility of the fine particles can be improved according to the size and characteristics of the fine particles.

5, a two-phase voltage is applied to an electrode portion including the first electrode portion 211 and the second electrode portion 212 to generate a moving electric field. However, the present invention is not limited thereto, An electric field may be generated.

6 is a conceptual diagram showing an electrode unit to which a three-phase voltage is applied according to an embodiment of the present invention.

7 is a graph showing a moving field generation time and a moving speed of an electrode part to which a three-phase voltage is applied according to an embodiment of the present invention.

Referring to FIGS. 6 and 7, when a three-phase voltage is applied to each of the electrode portions a, b, and c including one or more electrodes, a moving electric field is generated with time. At this time, the electric field generation time of the electrode portions a, b, and c can be controlled through the phase control, and the electric field moving speed can be expressed by the following Equation 1 to Equation 3.

Figure pat00001

Figure pat00002

Figure pat00003

FIG. 8 is a microparticle separation apparatus including at least one fine particle removing unit according to an embodiment of the present invention.

The apparatus for separating fine particles of FIG. 8 includes a plurality of fine particle removing units 200-1, 200-2, 200-3, and 200-3 located inside each of the one or more second outlets 140-1, 140-2, 200-3).

In FIG. 8, the power control unit 300 is used to determine whether the micro particle removing unit 200-1 located inside the 2-1 outlet 140-1, The fine particle removing unit 200-2, and the fine particle removing unit 200-3 located inside the second discharging unit 140-3.

In FIG. 8, a moving electric field can be generated by an electric field sequentially generated in each of the fine particle removing units 200-1, 200-2, and 200-3. At this time, the electric field traveling speeds generated by the respective fine particle removing units 200-1, 200-2, and 200-3 may be the same, some of the same, or all different.

Accordingly, it is possible to improve the collection efficiency of the fine particles in the passage part 120 by using the moving electric field generated according to the size or characteristics of the fine particles.

According to one embodiment of the present invention, in order to separate and move the fine particles by using the unequal moving electric field, the particles are electrified by the generation of corona, and then the particles are passed between the electrodes, And the production cost is low. In addition, it can solve problems of human health due to the occurrence of corona, noise and electromagnetic wave problems such as EMI (electro magnetic interference) or EMC (electromagnetic compatibility).

According to one embodiment of the present invention, since a uneven-moving electric field is generated at a relatively low voltage of several thousand volts, a high voltage of tens of thousands of volts can be used to reduce power consumption compared to a conventional electrostatic precipitator that generates corona and a dust collecting field.

According to one embodiment of the present invention, since the polarization phenomenon of particles is utilized, the influence of the environment is smaller than that of the conventional electrostatic precipitator, which is greatly affected by the particle characteristics such as resistivity, humidity, Can be improved.

According to one embodiment of the present invention, fine particles can be treated by a simple method as compared with a conventional electrostatic precipitator in which fine particles accumulated on the entire electrode plate are removed in order to remove fine particles discharged through a second discharge portion.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It belongs to the scope.

100: main body 110: inlet
120: passage part 130: first discharge part
140: second discharge portion 200: fine particle removal
210: first electrode layer 211: first electrode portion
212: second electrode unit 300: power source control unit

Claims (8)

A body in which air containing fine particles move, and
And a fine particle removing unit located inside the main body and including at least one electrode layer for separating the fine particles from the air,
Wherein the fine particle removing unit discharges the fine particles from the main body based on dielectrophoresis. The method of claim 1,
Wherein,
A first electrode portion for generating a first electric field, and
And a second electrode portion for generating a second electric field,
Wherein the fine particles are moved based on the dielectrophoresis in a moving electric field formed by the sequentially generated first electric field and the second electric field. The method of claim 1,
And a power control unit for providing a variable voltage to the first electrode unit and the second electrode unit over time. 4. The method of claim 3,
Wherein the power control unit provides the two-phase voltage to the first electrode unit or the second electrode unit. 4. The method of claim 3,
Wherein the power supply control unit provides the three-phase voltage to the first electrode unit or the second electrode unit. The method of claim 1,
Wherein the electrode layer comprises an electrode in the form of a printed circuit board (PCB) or a mesh. The method of claim 1,
The body
An inflow portion into which the air containing the fine particles flows,
A passage through which the air containing the fine particles or the air from which the fine particles are removed moves,
A first discharge portion through which the air from which the fine particles are removed is discharged,
Wherein the fine particle removing unit includes at least one second discharge unit for discharging the fine particles separated through the fine particle removing unit,
Wherein the microparticle separation device comprises: 8. The method of claim 7,
Wherein the second discharge part includes at least one fine particle removing part having different electric field traveling speeds.
KR1020150043139A 2014-03-27 2015-03-27 Micro particle separator KR101633086B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170097363A (en) * 2016-02-18 2017-08-28 주식회사 씨에스에너텍 Micro particle separator
KR20170101141A (en) * 2016-02-26 2017-09-05 주식회사 씨에스에너텍 Micro particle separator using direct voltage
WO2018097546A1 (en) * 2016-11-28 2018-05-31 주식회사 사운들리 Method and system for adjusting sound volume of sound wave output device
KR20210035040A (en) * 2019-09-23 2021-03-31 한국과학기술연구원 Filter for trapping microparticulates in air pollutant comprising vertical nano-gap electrode with multiple holes and air conditioning apparatus having the same
US12059689B2 (en) 2019-09-23 2024-08-13 Korea Institute Of Science And Technology Filter for trapping particulate matter including vertical nano-gap electrode with plurality of holes and air conditioning apparatus having the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102089342B1 (en) * 2018-11-13 2020-04-20 (주)아프로텍 Precipitation Device having Dielectrophoresis Particle Separating Module
WO2023018415A1 (en) * 2021-08-12 2023-02-16 Johnson Medtech Llc Flexible plate structure for smoke-reduction in surgical procedures

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001165906A (en) * 1999-09-30 2001-06-22 Wako Pure Chem Ind Ltd Method of separating substance using dielectric migration force
JP2002233792A (en) * 2000-12-08 2002-08-20 Minolta Co Ltd Particle separation mechanism
KR20070070533A (en) * 2005-12-29 2007-07-04 삼성전자주식회사 A device for manipulating a particle using dielectrophoresis comprising a metal post electrode structure and a method of manipulating a particle with high flow rate using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001165906A (en) * 1999-09-30 2001-06-22 Wako Pure Chem Ind Ltd Method of separating substance using dielectric migration force
JP2002233792A (en) * 2000-12-08 2002-08-20 Minolta Co Ltd Particle separation mechanism
KR20070070533A (en) * 2005-12-29 2007-07-04 삼성전자주식회사 A device for manipulating a particle using dielectrophoresis comprising a metal post electrode structure and a method of manipulating a particle with high flow rate using the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170097363A (en) * 2016-02-18 2017-08-28 주식회사 씨에스에너텍 Micro particle separator
KR20170101141A (en) * 2016-02-26 2017-09-05 주식회사 씨에스에너텍 Micro particle separator using direct voltage
WO2018097546A1 (en) * 2016-11-28 2018-05-31 주식회사 사운들리 Method and system for adjusting sound volume of sound wave output device
KR20210035040A (en) * 2019-09-23 2021-03-31 한국과학기술연구원 Filter for trapping microparticulates in air pollutant comprising vertical nano-gap electrode with multiple holes and air conditioning apparatus having the same
US12059689B2 (en) 2019-09-23 2024-08-13 Korea Institute Of Science And Technology Filter for trapping particulate matter including vertical nano-gap electrode with plurality of holes and air conditioning apparatus having the same

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