KR20160097620A

KR20160097620A - Apparatus for classifying particle by electrically mobility

Info

Publication number: KR20160097620A
Application number: KR1020150019519A
Authority: KR
Inventors: 육세진; 송대현; 김원근
Original assignee: 한양대학교 산학협력단
Priority date: 2015-02-09
Filing date: 2015-02-09
Publication date: 2016-08-18

Abstract

The apparatus for fractionating particles based on electric mobility according to an embodiment of the present invention includes a body portion including an inner cylinder and an outer cylinder formed to surround the inner cylinder; An inlet formed in an upper space between the inner cylinder and the outer cylinder and through which gas containing particles flows; And first and second particle discharging openings respectively formed in the lower part of the inner cylinder and the outer cylinder and classifying charged particles according to a voltage applied between the inner cylinder and the outer cylinder and discharging the charged particles.

Description

[0001] APPARATUS FOR CLASSIFYING PARTICLE BY ELECTRICALLY MOBILITY [0002]

Embodiments of the present invention are directed to an electrical mobility-based particle size classifier.

Generally, DMA (Differential Mobility Analyzer) is a device that classifies particles of several hundreds of nm or less in size according to electric mobility.

As a result, the polydisperse aerosol can be classified into a monodisperse aerosol according to the particle size. It is also possible to measure the size distribution of atmospheric aerosol particles.

However, in the conventional DMA, only charged particles of one polarity from the anode (+) or the cathode (-) can be classified by size. Therefore, there is a disadvantage that charged particles charged with the other polarity are simply discarded.

In addition, the conventional DMA has a disadvantage that follow-up measures or experiments are affected depending on whether a high-voltage applying device of a positive polarity (+) or a negative polarity (-) is used.

Therefore, there is a need for an apparatus for simultaneously classifying charged particles charged to the positive electrode (+) and the negative electrode (-).

Related prior art is disclosed in Japanese Patent Application Laid-Open No. 10-2006-0019403 (entitled " particle measuring apparatus and method, public date: August 31, 2007).

An embodiment of the present invention provides an electric mobility-based particle size classifier capable of simultaneously classifying particles according to electrical mobility.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, there is provided an apparatus for classifying an electric mobility-based particle size, comprising: a body portion including first and second wall surfaces facing each other; An inlet formed in an upper space between the first and second wall surfaces and through which gas containing particles flows; And first and second particle discharging holes formed in the lower portion of the first and second wall surfaces, respectively, for sorting the charged particles according to a voltage applied between the first and second wall surfaces and discharging the charged particles.

According to an embodiment of the present invention, there is provided an electric mobility-based particle size classifying apparatus comprising: a body portion formed in a bent tunnel shape including an inner curved surface and an outer curved surface formed to face each other; An inlet formed at an open side of the tunnel and through which gas containing particles flows; And first and second particles formed on the inner curved surface and the outer curved surface of the other side of the tunnel, each of which is classified according to a voltage applied between the inner curved surface and the outer curved surface, Outlet.

Wherein the body is configured such that a classifying region having a polarity in accordance with the application of the voltage is formed between the inner cylinder and the outer cylinder, and the first and second particle discharging ports are formed to have a polarity The charged particles can be classified according to size and discharged.

The body may be configured such that the voltage is applied to the inner cylinder and the ground is connected to the outer cylinder so that the clarifying region is formed.

The inlet may be formed in an annular shape in an upper space between the inner cylinder and the outer cylinder, and at least one of the width and the radius may be adjustable.

The first and second particle discharge ports are formed to have polarities different from each other, and the charged particles are guided to move along the direction of the electric field through the different polarities, Can be discharged.

Wherein the first particle outlet is continuously formed in a circumferential direction on an outer circumferential surface of the inner cylinder and is formed so as to continuously penetrate in a horizontal and vertical direction from an outer circumferential surface to a lower end surface of the inner cylinder, And may be formed continuously in the circumferential direction on the inner circumferential surface of the cylinder, and may be formed by penetrating the side surface of the outer cylinder in the horizontal direction.

The first and second particle discharge ports may be formed in the inner cylinder and the outer cylinder, respectively.

The first and second particle discharge ports may discharge particles gradually increasing in size from the upper portion to the lower portion of the body portion.

The apparatus for particle size classification based on electrical mobility according to an embodiment of the present invention includes a first particle outlet communicating with the second particle outlet and discharging particles discharged to the second particle outlet through a position spaced apart from the outer body And may further include a discharge guide portion.

An electric mobility-based particle size classifying apparatus according to an embodiment of the present invention is characterized in that a particle size classifying apparatus formed in a lower space between the inner cylinder and the outer cylinder and comprising a residual gas excluding the classified particles among the gases including the particles, And a gas outlet for discharging the protective air introduced into the space around the inlet.

The first and second particle discharge ports may be formed on the first and second wall surfaces, respectively.

The body portion may be formed in a tunnel shape bent in one round in one direction or in a tunnel shape bent in at least two rounds alternately in different directions.

The details of other embodiments are included in the detailed description and the accompanying drawings.

According to one embodiment of the present invention, particles can be simultaneously classified according to their electrical mobility.

According to an embodiment of the present invention, a larger amount of aerosol can be generated than in the prior art.

According to one embodiment of the present invention, the polydisperse aerosol can be classified or generated into a monodisperse aerosol depending on the particle size.

According to one embodiment of the present invention, particles are simultaneously classified according to the degree of electric mobility, so that not only the size distribution of the particles but also the characteristics according to the charged polarity can be grasped at the same time.

According to one embodiment of the present invention, the size distribution of atmospheric aerosol particles can be measured.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a frontal incision view for illustrating an electron mobility-based particle size classifying apparatus according to an embodiment of the present invention; FIG.
FIG. 2 is a plan view for explaining an electron mobility-based particle size classifying apparatus according to an embodiment of the present invention.
3 is a front sectional view showing a modified example of the first and second particle discharging ports in an embodiment of the present invention.
Fig. 4 is a front sectional view for explaining a discharge guide portion which is an additional component in an embodiment of the present invention. Fig.
5 is an exploded perspective view illustrating an electric mobility-based particle size classifying apparatus according to another embodiment of the present invention.
6 is a front sectional view showing a modified example of the first and second particle discharging ports in another embodiment of the present invention.
7 is a plan view for explaining an electric mobility-based particle size classifying apparatus according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a frontal incision view illustrating an electron mobility-based particle size classifying apparatus according to an embodiment of the present invention. FIG. 1 is a plan view showing the device.

1 and 2, an electric mobility-based particle size classifying apparatus 100 according to an embodiment of the present invention includes a body 110, an inlet 120, first and second particle outlets 130 , 140, and a gas outlet 150.

The body 110 may include an inner cylinder 112 and an outer cylinder 114 formed to surround the inner cylinder 112. That is, the body 110 may have a double cylindrical structure.

The body 110 may be configured to have a clearing region 111 having a polarity depending on a voltage applied between the inner cylinder 112 and the outer cylinder 114. To this end, the body 110 may be configured such that a high voltage is applied to the inner cylinder 112 and a ground is connected to the outer cylinder 114.

That is, in the space between the inner cylinder 112 and the outer cylinder 114, the classifying region 111 can be formed according to application of a high voltage, (+) And negative (-) polarity.

In the embodiment of the present invention, it is described that the high voltage is applied to the inner cylinder 112 and the ground is connected to the outer cylinder 114. However, the present invention is not limited thereto, and the high voltage may be applied to the outer cylinder 114, and the ground may be connected to the inner cylinder 112.

A gas containing particles may be introduced into the inlet 120. At this time, as the gas containing the particles, for example, a polydisperse aerosol may be introduced into the inlet 120.

The inlet 120 is formed at an upper portion of the body 110. Specifically, the inlet 120 is formed in the upper space between the inner cylinder 112 and the outer cylinder 114.

At this time, the inlet 120 may be located higher or lower than the uppermost end of the upper portion of the inner cylinder 112 and the outer cylinder 114. Of course, the inlet 120 may be formed at the same position with respect to the uppermost end of the upper portion of the inner cylinder 112 and the outer cylinder 114. The inlet 120 may be formed in an annular shape in an upper space between the inner cylinder 112 and the outer cylinder 114.

The size of at least one of the width w and the radius r of the inlet 120 may be adjustable. For example, the inlet 120 may be formed to have a narrow width w so that a small amount of a polydisperse aerosol may be introduced, and conversely, a width w thereof may be set so that a large amount of a polydisperse aerosol may be introduced. Can be widely formed.

A sheath air (2) may be introduced into the space around the inlet (120). The protective air may be introduced into the space between the inner cylinder 112 and the outer cylinder 114 together with the polydisperse aerosol.

The polydisperse aerosol may enter the body 110 and then move downward in the vertical direction by the protective air. That is, the polydisperse aerosol may flow into the space between the inner cylinder 112 and the outer cylinder 114 together with the protective air to move vertically to the classification region 111.

The first and second particle discharge ports 130 and 140 are formed in the lower portion of the inner cylinder 112 and the outer cylinder 114, respectively.

Specifically, the first particle outlet 130 is continuously formed in the circumferential direction on the outer circumferential surface of the inner cylinder 112, and is continuous with the outer circumferential surface of the inner cylinder 112 in the horizontal and vertical directions, .

In addition, the second particle outlet 140 may be formed continuously in the circumferential direction on the inner circumferential surface of the outer cylinder 114, and may be formed by horizontally penetrating the side surface of the outer circumferential cylinder 114.

The first and second particle discharge ports 130 and 140 sort the charged particles according to the voltage applied between the inner cylinder 112 and the outer cylinder 114 and discharge the charged particles. That is, the first and second particle discharge ports (130, 140) can sort the charged particles according to the polarity of the classification region 111 and discharge the charged particles.

For this purpose, the first and second particle discharge ports 130 and 140 may be formed to have different polarities. The first and second particle discharge ports 130 and 140 induce the charged particles to move along the direction of the electric field through the polarities different from each other, .

For example, it is assumed that the first particle outlet 130 has a (+) polarity and the second particle outlet 140 has a (-) polarity. In this case, among the charged particles, particles having a negative polarity may be discharged through the first particle outlet 130 according to the polarity of the classification region 111, The particles can be discharged through the second particle outlet 140.

On the contrary, it is assumed that the first particle outlet 130 has a (-) polarity and the second particle outlet 140 has a (+) polarity. In this case, among the charged particles, particles having positive polarity may be discharged through the first particle outlet 130 according to the polarity of the classification region 111, The particles can be discharged through the second particle outlet 140.

Here, the particles discharged through the first and second particle discharge ports 130 and 140 may include a monodisperse aerosol. That is, the polydisperse aerosol introduced through the inlet 120 may be classified as the monodisperse aerosol and discharged through the first and second particle outlets 130 and 140.

The first and second particle discharge ports 130 and 140 may be formed in the inner cylinder 112 and the outer cylinder 114, respectively. In this case, the first and second particle discharging openings 130 and 140 may discharge particles gradually increasing in size from the upper portion of the body 110 to the lower portion. This will be described later in detail with reference to FIG.

The gas outlet 150 may be formed in the lower space between the inner cylinder 112 and the outer cylinder 114.

The gas outlet 150 may discharge the residual gas except for the classified particles in the gas containing the particles and the protective air introduced into the space around the inlet 120.

Herein, the residual gas means particles remaining in the gas containing the particles except the particles discharged through the first and second particle discharging ports (130, 140) according to the polarity of the cleasing region (111) .

3 is a front sectional view showing a modified example of the first and second particle discharging ports in an embodiment of the present invention.

As shown in FIG. 3, the first and second particle discharge ports 130 and 140 may be formed in the inner cylinder 112 and the outer cylinder 114, respectively.

For example, three particle outlets (Dp1, Dp2, Dp3) may be formed in the inner cylinder (112) and the outer cylinder (114), respectively. The particle outlet Dp1 (+) having a positive polarity is connected to the outer cylinder 114 and the particle outlet Dp1 (-) having a negative polarity is connected to the outer cylinder 114. The particle outlet Dp1 May be formed in the inner cylinder 112.

Similarly, the particle outlets Dp2 and Dp3 may be formed to have different polarities. That is, the particle outlets Dp2 (+) and Dp3 (+) having positive polarity are connected to the outer cylinder 114, the particle outlets Dp2 (-) and Dp3 (- 112).

At this time, the particle outlets Dp1, Dp2, and Dp3 may be spaced apart from each other at a predetermined interval or a non-uniform interval in the downward direction from the upper part of the inner cylinder 112 and the outer cylinder 114, respectively. The particle outlets Dp1, Dp2, and Dp3 can discharge particles gradually increasing in size from the upper portion of the inner cylinder 112 and the outer cylinder 114 to the lower portion.

That is, among the charged particles, depending on the polarity of the classification region 111, particles having a (+) polarity and a largest size may be discharged through the particle outlet Dp3 (-), The particles having the largest polarity and having the largest size can be discharged through the particle outlet Dp3 (+). On the contrary, among the particles charged according to the polarity of the classification region 111, the particle having the (+) polarity and the smallest size can be discharged through the particle outlet Dp1 (-), ) Polarity and the smallest particle can be discharged through the particle outlet Dp1 (+).

Fig. 4 is a front sectional view for explaining a discharge guide portion which is an additional component in an embodiment of the present invention. Fig.

As shown in FIG. 4, the apparatus for fractionating particles 400 based on electric mobility according to an embodiment of the present invention may further include a discharge guide part 410 as an additional component in the components of FIG. 1 have. That is, the particle size classifying apparatus 400 includes a body 110, an inlet 120, first and second particle outlets 130 and 140, a gas outlet 150, and a discharge guide 410 can do.

Therefore, in the present embodiment, the same components as those in FIG. 1 will not be described, and only the discharge guide portion 410 will be described in detail.

The discharge guide part 410 may be formed in communication with the second particle outlet 140. At this time, the discharge guide part 410 may be formed in a shape such that its cross-section is symmetrical with the 'B' shape.

The discharge guide part 410 guides the particles discharged to the second particle outlet 140 to a position spaced apart from the outer cylinder 114 and discharges the particles. That is, the discharge guide unit 410 guides the particles discharged to the second particle outlet 140 to a position spaced apart from the bottom surface of the outer cylinder 114 by a predetermined distance.

According to an embodiment of the present invention, particles discharged to the second particle outlet 140 through the discharge guide part 410 can be collected more efficiently.

4, the discharge guide unit 410 may include a second particle discharge port 140 as shown in FIG. 3, and a second particle discharge port 140 ) May be formed in many cases.

As described above, according to the embodiment of the present invention, the gas containing the particles moves to the first and second particle discharge ports 130 and 140 according to the direction of the electric field, It is possible to simultaneously grasp not only the size distribution of the particles but also the characteristics according to the charged polarity.

5 is an exploded perspective view illustrating an electric mobility-based particle size classifying apparatus according to another embodiment of the present invention.

5, an electric mobility-based particle size classifying apparatus 500 according to another embodiment of the present invention includes a body portion 510, an inlet 520, first and second particle outlets 530 and 540, .

The body portion 510 may include first and second wall surfaces 512 and 514 facing each other. That is, the body portion 510 may include first and second wall surfaces 512 and 514 formed to face each other with a predetermined distance from each other with reference to the inflow port 520 to be described later.

The body portion 510 may have a polarization region 511 having a polarity depending on a voltage applied between the first and second wall surfaces 512 and 514, 511 may have polarities of positive (+) and negative (-).

To this end, a voltage supply device (not shown) may be connected to the second wall surface 514 to apply a high voltage, and a ground may be connected to the first wall surface 512. Alternatively, the voltage supply device may be connected to the first wall surface 512, and the ground may be connected to the second wall surface 514.

A gas containing particles may be introduced into the inlet 520. At this time, as the gas containing the particles, for example, a polydisperse aerosol may be introduced into the inlet 120.

The inlet 520 is formed on the upper portion of the body 510. Specifically, the inlet 520 is formed in the upper space between the first and second wall surfaces 512, 514.

The inlet 520 may be positioned higher or lower than the uppermost end of the upper portion of the first and second wall surfaces 512 and 514. Of course, the inlet port 520 may be formed at the same position with respect to the uppermost end of the upper portion of the first and second wall surfaces 512 and 514.

Sheath air may be introduced into the space around the inlet 520. The protective air may enter the space between the first and second wall surfaces 512, 514 with the polydisperse aerosol.

The polydisperse aerosol may enter the body 510 and then move downward in the vertical direction by the protective air. That is, the polydisperse aerosol may flow vertically into the clarifying region 511 by flowing into the space between the first and second wall surfaces 512 and 514 together with the protective air.

The first and second particle discharge ports 530 and 540 are formed on the lower portion of the body 510, that is, below the first and second wall surfaces 512 and 514, respectively.

The first and second particle outlets 530 and 540 sort the charged particles according to the voltage applied between the first and second wall surfaces 512 and 514 and discharge the charged particles. That is, the first and second particle discharge ports 530 and 540 can sort and discharge the charged particles according to the polarity of the classification region 511.

For this purpose, the first and second particle outlets 530 and 540 may be formed to have different polarities. The first and second particle outlets 530 and 540 induce the charged particles to move along the direction of the electric field through the polarities different from each other, .

For example, it is assumed that the first particle outlet 530 has a (+) polarity and the second particle outlet 540 has a (-) polarity. In this case, among the charged particles, particles having a negative polarity may be discharged through the first particle outlet 530 according to the polarity of the classification region 511, The particles may be discharged through the second particle outlet 540.

On the contrary, it is assumed that the first particle outlet 530 has a (-) polarity and the second particle outlet 540 has a (+) polarity. In this case, among the charged particles, particles having a (+) polarity may be discharged through the first particle outlet 530 according to the polarity of the cleasing region 511, and (-) polarity The particles may be discharged through the second particle outlet 540.

Here, the particles discharged through the first and second particle discharge ports 530 and 540 may include a monodisperse aerosol. That is, the polydisperse aerosol introduced through the inlet 520 may be classified as the monodisperse aerosol and discharged through the first and second particle outlets 530 and 540.

Meanwhile, a plurality of the first and second particle discharge ports 530 and 540 may be formed on the first and second wall surfaces 512 and 514, respectively. In this case, the first and second particle discharging ports 530 and 540 may discharge particles gradually increasing in size from the upper portion to the lower portion of the body portion 510. This will be described later in detail with reference to FIG.

6 is a front sectional view showing a modified example of the first and second particle discharging ports in another embodiment of the present invention.

As shown in FIG. 6, the first and second particle discharge ports 530 and 540 may be formed on the first and second wall surfaces 512 and 514, respectively.

For example, three particle outlets Dp1, Dp2, and Dp3 may be formed on the first and second wall surfaces 512 and 514, respectively. The particle outlet Dp1 (+) having a positive polarity is formed on the second wall surface 514 and the particle outlet Dp1 (-) having a negative polarity is formed on the second wall surface 514, May be formed on the first wall surface 512.

Similarly, the particle outlets Dp2 and Dp3 may be formed to have different polarities. That is, the particle outlets Dp2 (+) and Dp3 (+) having positive polarity are connected to the second wall surface 514, the particle outlets Dp2 (-) and Dp3 (- And may be formed on the wall surface 512.

At this time, the particle outlets Dp1, Dp2, and Dp3 may be spaced apart from each other at a predetermined interval or a non-uniform interval in the downward direction from the top of the first and second wall surfaces 512 and 514, respectively. The particle outlets Dp1, Dp2, and Dp3 can discharge particles gradually increasing in size from the upper portion of the first and second wall surfaces 512 and 514 toward the lower portion.

That is, among the particles charged according to the polarity of the classification region 511, particles having a (+) polarity and a largest size can be discharged through the particle outlet Dp3 (-), The particles having the largest polarity and having the largest size can be discharged through the particle outlet Dp3 (+). On the contrary, among the particles charged according to the polarity of the classification region 511, the particles having the (+) polarity and the smallest size can be discharged through the particle outlet Dp1 (-), ) Polarity and the smallest particle can be discharged through the particle outlet Dp1 (+).

FIG. 7 is a front sectional view for explaining an electric mobility-based particle size classifying apparatus according to another embodiment of the present invention.

7, an electric mobility-based particle size classifier 700 according to another embodiment of the present invention includes a body 710, an inlet 720, first and second particle outlets 730, 740).

The body portion 710 may be formed in the form of a curved tunnel including an inner curved surface 712 and an outer curved surface 714 formed to face each other.

Specifically, the body portion 710 may be formed in the form of a curved tunnel that is rounded once in one direction. For example, the body portion 710 may be formed in the form of a tunnel having a cross section of '⊃' as shown in the figure.

In another embodiment, although not shown in the drawings, the body portion 710 may be formed in a tunnel shape that is bent in at least two rounds alternately in different directions. For example, the body portion 710 may be formed in the shape of a tunnel having an S-shaped cross section.

The body portion 710 may be configured to have a clearing region 711 having a polarity depending on a voltage applied between the inner curved surface 712 and the outer curved surface 714. To this end, the body 710 may be configured such that a high voltage is applied to the inner curved surface 712 and a ground is connected to the outer curved surface 714.

That is, in the space between the inner curved surface 712 and the outer curved surface 714, the classifying region 711 may be formed according to the application of a high voltage, (+) And negative (-) polarity.

A gas containing particles may be introduced into the inlet 720. At this time, for example, a polydisperse aerosol may be introduced into the inlet 720 as a gas containing the particles.

This inlet 720 is formed at one open side of the tunnel. In other words, the inlet 720 may be formed at the inlet side into which the polydisperse aerosol flows.

At this time, the inlet 720 may be formed such that a part of the inlet 720 is exposed to the outside of the tunnel, or the entire inside of the inlet 720 is inserted into the inside of the tunnel. Of course, the inlet 720 may be formed at the same position with respect to the edge of the opened one side of the tunnel, as shown in the figure.

Sheath air may be introduced into the space around the inlet 720. The protective air may enter the space between the inner curved surface 712 and the outer curved surface 714 together with the polydisperse aerosol.

The polydisperse aerosol may flow into the body 710 and then move along the curve of the tunnel bent by the protective air to the first or second round. That is, the polydisperse aerosol may flow into the space between the inner curved surface 712 and the outer curved surface 714 together with the protective air so as to pass through the classification region 711 while circulating the curve.

The first and second particle outlets 730 and 740 are respectively formed in the inner curved surface 712 and the outer curved surface 714 of the other side of the tunnel.

The first and second particle outlets 730 and 740 sort the charged particles according to the voltage applied between the inner curved surface 712 and the outer curved surface 714 and discharge the charged particles. That is, the first and second particle discharging ports 730 and 740 can sort and discharge the charged particles according to the polarity of the classification region 711.

For this purpose, the first and second particle outlets 730 and 740 may be formed to have different polarities. The first and second particle outlets 730 and 740 induce the charged particles to move along the direction of the electric field through the polarities different from each other, .

For example, it is assumed that the first particle outlet 730 has a (+) polarity and the second particle outlet 740 has a (-) polarity. In this case, among the charged particles, particles having a negative polarity may be discharged through the first particle outlet 730 according to the polarity of the cleasing region 711, The particles may be discharged through the second particle outlet 740.

On the contrary, it is assumed that the first particle outlet 730 has a (-) polarity and the second particle outlet 740 has a (+) polarity. In this case, among the charged particles, particles having a (+) polarity may be discharged through the first particle outlet 730 according to the polarity of the classification region 711, The particles may be discharged through the second particle outlet 740.

Here, the particles discharged through the first and second particle discharge ports 730 and 740 may include a monodisperse aerosol. That is, the polydisperse aerosol introduced through the inlet 720 may be classified as the monodisperse aerosol and discharged through the first and second particle outlets 730 and 740.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

110:
111: Classifying area
112: inner cylinder
114: outer cylinder
120: inlet
130: first particle outlet
140: second particle outlet
150: gas outlet
410:
510:
511: Classifying area
512: first wall surface
514: second wall surface
520: inlet
530: First particle outlet
540: Second particle outlet
710:
711: Classifying area
712: inner surface
714: outer curved surface
720: Inlet
730: first particle outlet
740: Second particle outlet

Claims

A body portion including an inner cylinder and an outer cylinder formed to surround the inner cylinder;
An inlet formed in an upper space between the inner cylinder and the outer cylinder and through which gas containing particles flows; And
A first and a second particle discharging holes formed in the lower portion of the inner cylinder and the outer cylinder for separating the charged particles according to a voltage applied between the inner cylinder and the outer cylinder,
Wherein the particle size distribution is based on the electrical mobility.

A body portion including first and second wall surfaces formed to face each other;
An inlet formed in an upper space between the first and second wall surfaces and through which gas containing particles flows; And
The first and second particle discharging holes are formed in the lower portion of the first and second wall surfaces, respectively. The first and second particle discharging holes are formed on the first and second wall surfaces,
Wherein the particle size distribution is based on the electrical mobility.

A body portion formed in a bent tunnel shape including an inner curved surface and an outer curved surface formed to face each other;
An inlet formed at an open side of the tunnel and through which gas containing particles flows; And
The first and second particle discharging ports being formed on the inner curved surface and the outer curved surface of the other side of the tunnel, respectively, for classifying and discharging the charged particles according to the voltage applied between the inner curved surface and the outer curved surface,
Wherein the particle size distribution is based on the electrical mobility.

The method according to claim 1,
The body
Wherein a classifying region having a polarity according to application of the voltage is formed between the inner cylinder and the outer cylinder,
The first and second particle outlets
Wherein the charged particles are classified according to the polarity of the classification region and sorted and discharged.

5. The method of claim 4,
The body
Wherein the voltage is applied to the inner cylinder and the ground is connected to the outer cylinder so that the clarifying region is formed.

The method according to claim 1,
The inlet
An annular shape is formed in an upper space between the inner cylinder and the outer cylinder, and at least one of the width and the radius is adjustable.

4. The method according to any one of claims 1 to 3,
The first and second particle outlets
Characterized in that the charged particles are formed to have different polarities and are guided to move the charged particles along the direction of the electric field through the different polarities, Based particle size classification apparatus.

The method according to claim 1,
The first particle outlet
Wherein the inner cylinder is continuously formed in the circumferential direction on the outer circumferential surface of the inner cylinder and is continuously formed in the horizontal and vertical directions from the outer circumferential surface to the lower end surface of the inner cylinder,
The second particle outlet
Wherein the outer diameter of the outer cylinder is continuously formed in the circumferential direction on the inner circumferential surface of the outer cylinder, and the outer diameter of the outer cylinder is formed so as to pass through the side of the outer cylinder in the horizontal direction.

The method according to claim 1,
The first and second particle outlets
Wherein a plurality of particles are formed in the inner cylinder and the outer cylinder, respectively.

10. The method of claim 9,
The first and second particle outlets
Wherein the particles are gradually larger in size from the upper portion to the lower portion of the body portion.

The method according to claim 1,
A second particle outlet communicating with the second particle outlet and guiding the particles discharged to the second particle outlet to a position spaced apart from the outer cylinder,
Wherein the particle size distribution is based on a particle size distribution of the particles.

The method according to claim 1,
A gas outlet formed in a lower space between the inner cylinder and the outer cylinder for discharging the residual gas excluding the classified particles from the gas containing the particles and the protective air introduced into the space around the inlet,
Wherein the particle size distribution is based on a particle size distribution of the particles.

3. The method of claim 2,
The first and second particle outlets
Wherein the plurality of particles are formed on the first and second wall surfaces, respectively.

14. The method of claim 13,
The first and second particle outlets
Wherein the particles are gradually larger in size from the upper portion to the lower portion of the body portion.

The method of claim 3,
The body
Wherein the tunneling member is formed in a tunnel shape bent in one direction in a single direction or in a tunnel shape bent in two or more rounds alternately in different directions.