KR100887468B1 - Fine particle classifier - Google Patents

Abstract

The present invention relates to a fine particle classifier, and in detail, the supplied fine particles are floated in the air using ultrasonic waves and rotational movements, and then the fine particles are forcibly moved to separate and collect the fine particles in a predetermined size by a separation filter. The present invention relates to a microparticle classifier, the microparticle classifier comprising: a tank housing (21) having an upper portion and an inner space therein for supplying unclassified particles, the pipe housings being opposed to both sides of the upper portion; Ultrasonic generating means (20a) is installed in the outer lower portion of the tank housing 21 to generate ultrasonic waves to disperse and float the fine particles and is connected to the control means (50); Chamber means (24) installed outside the tank housing (21) to transmit ultrasonic waves generated from the ultrasonic generator (20a) to the inside of the tank housing (21); Rotation generating means (20b) to be installed in the inner direction than the ultrasonic generating means (20a) installed in the lower tank housing 21 and connected to the main control means 28 to generate a rotational force to float unclassified particles; A duct valve (21-1) (21-2) installed in a pipe provided at an upper portion of the tank housing (21) to control supply and discharge of gas sucked into the tank housing (21); It is connected to the tank housing 21 and connected to the cyclone means 25 and the ultrasonic generating means 20a and the rotation generating means 20b to collect the floating fine particles by the flow of air flow to adjust the ultrasonic intensity and RPM It is characterized by including a main control means 28 with a timer attached.

Description

Fine particle classifier {FINE PARTICLE CLASSIFIER}

The present invention relates to a fine particle classifier, and in detail, the supplied fine particles are floated in the air by using ultrasonic waves and rotational force, and then the fine particles are forcibly moved together with the sucked gas to move the fine particles to a constant size by a separation filter. A microparticle classifier that enables separation and collection.

In general, a stacked sieve (sieve) is mainly used as a classifier used to separate the fine particles constituting the powder by size, and the separated powder is, for example, a semiconductor material, a pharmaceutical raw material, a coloring material, or the like. It is used as a material for all industries such as semiconductor industry, pharmaceutical industry and chemical industry.

In the conventional classifier, as shown in FIG. 1, a plurality of meshes 100 including a mesh net 100a of a predetermined size are stacked as shown in FIG. 2, but the size of the stacked meshes 100, 110, 120, 130 is shown. Is installed to become smaller toward the bottom and the network 100, 110, 120, 130 is installed to be controlled by the controller 140 installed in the lower portion.

The controller 140 is provided with a vibrating device (not shown) so that the meshes 100, 110, 120, 130 are vibrated by the operation of the vibrating device, and the fine particles supplied are meshes 100, 110. According to the size of the mesh network (100a) of the 120, 130, and classified into the network 100, 110, 120, by sequentially stacking the powder to be classified is configured to be separated according to the size.

However, such a conventional classifier has a problem in that the finer the particles, the more difficult it is to separate into a predetermined size by using the network due to technical limitations of the fabrication of the network.

The present invention has been made to solve this problem in view of the structural problems of the conventional classifier as described above, by causing the particles to float using ultrasonic waves and rotational force and then collecting and collecting the fine particles using a cyclone and a separation filter. The main purpose is to provide a fine particle sorter that can adjust the amount and height of the floating particles by the user's control, and can be separated into a desired size according to the separation filter hole size so that more efficient separation work can be performed. .

An object of the present invention as described above, in the fine particle classifier, the tank housing (21) having an upper portion and a space therein so as to supply the unclassified particles, the pipe is installed so as to face both sides of the upper portion; Ultrasonic generating means (20a) is installed in the outer lower portion of the tank housing 21 to generate ultrasonic waves to disperse and float the fine particles and is connected to the control means (50); Chamber means (24) installed outside the tank housing (21) to transmit ultrasonic waves generated from the ultrasonic generator (20a) to the inside of the tank housing (21); Rotation generating means (20b) to be installed in the inner direction than the ultrasonic generating means (20a) installed in the lower tank housing 21 and connected to the main control means 28 to generate a rotational force to float unclassified particles; A duct valve (21-1) (21-2) installed in a pipe provided at an upper portion of the tank housing (21) to control supply and discharge of gas sucked into the tank housing (21); It is connected to the tank housing 21 and connected to the cyclone means 25 and the ultrasonic generating means 20a and the rotation generating means 20b to collect the floating fine particles by the flow of air flow to adjust the ultrasonic intensity and RPM It is achieved by a fine particle classifier, characterized in that it comprises a main control means 28 attached to the timer.

As described above, in the present invention, the supplied fine particles are floated in the air using ultrasonic waves and rotational movements, and then the fine particles are forcibly moved to separate and collect the fine particles in a predetermined size by a separation filter. Easy and excellent separation efficiency provides the effect of increasing the efficiency of components and materials used throughout the semiconductor industry, such as semiconductor materials, pharmaceutical raw materials, color development materials, pharmaceutical industry and chemical industry.

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

Accompanying drawings Figure 3 is an exemplary view showing the installation state of the fine particle classifier to which the technique of the present invention is applied, the microparticle classifier of the present invention is a hopper means 10 is supplied temporarily stored unclassified particles to be separated, and the hopper means 10 is connected to the lower end of the fine particle classifier 20 to float the unclassified particles supplied by using ultrasonic and rotational force, and the inlet to filter the foreign matter of the gas is installed and connected to the fine particle classifier 20 It is connected to the filter means 30, the outlet filter means (30a) for filtering the gas passing through the fine particle sorter 20, and the outlet filter means (30a) to make the inside of the classification vessel means into a vacuum It is connected to the vacuum pump means 40, the inlet filter means 30 and the outlet filter means (30a) and the valve means (60) (60a) installed to be operated by the control means (50), It is provided on the fine particle classification system, which includes a valve means (60), (60a) and the vacuum pump means 40 control means 50 equipped with a switch for controlling the operation of the.

The structure of the fine particle classifier 20 of the present invention installed as described above is open at the top so that the unclassified particles are supplied as shown in FIG. Ultrasonic generating means 20a is installed on the outer lower portion of the tank housing 21 to generate and ultrasonically disperse fine particles, and to be connected to the main control means 28.

Meanwhile, a chamber means 24 is installed outside the tank housing 21 to transmit ultrasonic waves generated from the ultrasonic generator 20a to the inside of the tank housing 21, and a lower portion of the tank housing 21 is provided. Rotation generating means (20b) is installed in the inner direction than the ultrasonic generating means (20a) installed in the connection with the main control means 28, which adjusts the ultrasonic strength and RPM and is attached to the timer is installed to generate a rotational force to float unclassified particles This is installed.

Duct valves (21-1) (21-2) are provided in the pipe provided on the tank housing 21 to control the supply and discharge of gas sucked into the tank housing 21, the tank The cyclone means 25 is connected to the housing 21 to collect the floating fine particles by the flow of airflow.

On the other hand, the rotation generating means (20b) is a rotor (20b-2) is installed on the rotating shaft of the drive motor (20b-1) installed penetrating inward from the bottom center of the tank housing 21 as shown in Figure 6a attached It is possible to use a structure configured to cause a rotational movement by the operation of the drive motor (20b-1) is connected to the main control means 28.

 In addition, the rotation generating means (20b) is attached to the main control means 28, as shown in Figure 6b attached to the solenoid member (20b-3) and the magnetic force installed on the top operated according to the power supply It can be used as a structure consisting of a rotor (20b-4) having, it is preferable that the rotor (20b-4) using a rod magnet and the cross section of the rod magnet has a form of a right triangle.

As shown in FIG. 4, the cyclone means 25 has a structure in which one side is connected to a pipe provided in the tank housing 21 and the other side is provided with an outer cyclone member 25a coupled to a collecting vessel 25a-1. A separation filter 25b-1 is installed at one end of the inner side through the filter and is separated into a predetermined size, and the other side is formed of an inner cyclone member 25b connected to the outlet filter means 30a.

The separation filter 25b-1 has a structure that can be easily attached and detached, and the external cyclone member 25a is further provided with a vibration member 25c. At this time, the vibration member 25c preferably uses an ultrasonic vibrator.

Meanwhile, as shown in FIG. 5, the cyclone means 25 may be installed in one or more stages, and may be connected in multiple stages, and the particle size of the separation filter 25b-1 may be gradually reduced to various sizes. It was possible to separate and collect the fine particles of.

The microparticle observation sensor 26 may be further installed and used to detect the amount of the fine particles floating on the tank housing 21. The microparticle observation sensor 26 uses an optical sensor including a light receiving unit and a light emitting unit. . The microparticle observation sensor 26 detects the amount of the fine particles floating in the tank housing 21 and transmits the detected signal to the control means 50, when the amount of the transmitted fine particles becomes less than a predetermined value. At the same time as closing the duct valve 21-1 (21-2) and operating the constant amount supply valve means 90 provided between the hopper means 10 and the fine particle sorter 20, the unclassified stored in the hopper means 10 Particles are supplied to the tank housing 21 by a predetermined amount.

On the other hand, the tank housing 21 is preferably using a glass material of a transparent material. The reason is to prevent the floating fine particles from reacting with the inner surface of the tank housing 21.

Looking at the operation of the microparticle classifier of the present invention having the structure as described above are as follows. Power is supplied by the control means 50 shown in FIG. 3 to operate each means and at the same time a certain amount of supply valve means 90 is operated to transfer the unclassified particles stored in the hopper means 10 to the tank housing 21 by a predetermined amount. Input supply.

At this time, the time when the predetermined amount supply valve means 90 is opened by the timer attached to the main control means 28 can be set in advance, and the operation means of the vacuum pump 40 is adjusted using the control means 50. .

Meanwhile, the duct valves 21-1 and 21-2 provided at both sides of the tank housing 21 are closed, and the unclassified particles supplied into the tank housing 21 are installed at the bottom thereof to rotate. It floats by the rotational force of 20b.

The operation of the rotation generating means (20b) is a rotor 20b-2 is installed on the rotating shaft of the drive motor (20b-1) installed penetrating inward from the bottom center of the tank housing 21 as shown in Figure 6a attached Is configured to cause a rotational movement by the operation of the drive motor 20b-1 configured to be connected to the main control means 28, or as shown in Figure 6b attached to the main control means 28 The solenoid member 20b-3 which is operated according to the supply of the power and the rotor 20b-4 having the magnetic force installed thereon may be used.

In this case, it is preferable that the rotor uses a bar magnet and that the cross section of the bar magnet has a right triangle shape. The reason for this is that since the inclined surface is formed, the position closest to the bottom of the tank housing 21 can be formed, thereby increasing the efficiency of floating the fine particles.

On the other hand, the ultrasonic wave generating means 20a generates ultrasonic waves to prevent the microparticles from agglomerating with each other, and can also obtain the effect of floating the microparticles. At this time, since the chamber means 24 is installed at the outer lower end of the tank housing 21, ultrasonic waves generated by the operation of the ultrasonic wave generating means 20a can be transmitted without impacting the tank housing 21.

When the fine particles are floated as described above, the duct valve 21-1 (21-21) installed in a pipe provided on the tank housing 21 to control the supply and discharge of the gas sucked into the tank housing 21. As 2) is opened, the sucked gas and the floated fine particles are transferred to the side where the cyclone means 25 is installed by the operation of the vacuum pump 40 shown in FIG.

At this time, the microparticle observation sensor 26 of the tank housing 21 transmits the measured signal to the main control means 28 by measuring the transmittance value which changes according to the amount of the floating fine particles. When the value is higher than the preset value, the duct valves 20-1 and 21-2 are closed, and at the same time, a certain amount of supply valve means 90 installed between the hopper means 10 and the fine particle separator 20 is operated. The unclassified particles stored in the hopper means 10 are supplied to the tank housing 21 by a predetermined amount.

Thereafter, when the transmittance value measured by the microparticle observation sensor 26 is detected to be smaller than or equal to a preset value, the duct valves 20-1 and 21-2 are opened.

The microparticle observation sensor 26 preferably uses an optical sensor consisting of a light receiving unit and a light emitting unit. In order to use the fine particle observation sensor 26, it is preferable that the tank housing 21 uses a glass material among transparent materials. The reason is that the floating fine particles are prevented from contacting the inner surface of the tank housing 21 and react with each other, and the state inside the tank housing 21 can be easily checked.

On the other hand, in the duct valve 21-1, the outside air is sucked and discharged toward the duct valve 21-2, so that the floating fine particles are cyclone means 25, like the air sucked toward the open duct valve 21-2. Is moved to.

The fine particles moved to the cyclone means 25 collects the fine particles that do not pass through the separation filter 25b-1 while passing through the outer cyclone member 25a in which the collecting boxes 25a-1 are coupled (25a-). 1) will be piled up.

In addition, as shown in FIG. 5, when one or more cyclone means 25 are installed in multiple stages and the hole size for gradually filtering the separation filter 25b-1 is reduced, fine particles having different sizes are easily used. Can be classified and obtained.

In this case, the external cyclone member 25a may be further attached to the vibration member 25c, and the vibration member 25c may preferably use an ultrasonic vibrator. The reason for installing the vibrating member 25c on the outer cyclone member 25a is to prevent the fine particles from adhering to the surface.

1 is an exemplary view of a network constituting the microparticle classification system according to the prior art.

Figure 2 is a perspective view showing the structure of a microparticle classification system according to the prior art.

Figure 3 is a block diagram of a microparticle classification system showing the installation state of the microparticle classifier is applied to the present invention.

Figure 4 is an exemplary view showing the structure of the present invention fine particle classifier.

5 is an exemplary view showing a microparticle classifier of another embodiment of the present invention.

Figure 6a is a structural diagram showing the structure of the rotational force generating means that is the main portion of the present invention.

Figure 6b is a structural diagram showing another structure of the rotation force generating means that is the main portion of the present invention.

※ Explanation of code for main part of drawing ※

10: hopper means 20: fine particle classifier

21: tank housing 20a: ultrasonic generation means

20b: rotation generating means 20b-1: drive motor

20b-2,20b-4: Rotor 20b-3: Solenoid member

21-1, 21-2: Duct valve 24: Chamber means

25 cyclone means 25a external cyclone member

25b: inner cyclone member 25a-1: collecting box

25b-1: Separation filter 25c: Vibration member

30: inlet filter means 30a: outlet filter means

40: vacuum pump means 60, 60a: valve means

Claims (14)

In the microparticle classifier, A tank housing 21 having an upper portion open to supply unclassified particles and having a space therein, the pipe housings having opposite sides of the upper portion; An ultrasonic generator 20a installed at an outer lower portion of the tank housing 21 to generate ultrasonic waves to disperse and float fine particles, and to be connected to the main control means 28; Chamber means (24) installed outside the tank housing (21) to transmit ultrasonic waves generated from the ultrasonic generator (20a) to the inside of the tank housing (21); Rotation generating means (20b) to be installed in the inner direction than the ultrasonic generating means (20a) installed in the lower tank housing 21 and connected to the main control means 28 to generate a rotational force to float unclassified particles; A duct valve (21-1) (21-2) installed in a pipe provided at an upper portion of the tank housing (21) to control supply and discharge of gas sucked into the tank housing (21); Cyclone means 25 connected to the tank housing 21 to collect the floating fine particles by the flow of air; The fine particle classifier characterized in that it is connected to the ultrasonic generating means (20a) and the rotation generating means (20b) to adjust the ultrasonic intensity and RPM, and the main control means 28 is attached to the timer. According to claim 1, wherein the rotation generating means (20b) is installed in the rotor shaft 20b-2 of the drive motor (20b-1) penetrating inward from the lower center of the tank housing 21, the control means 50 Microparticle classifier, characterized in that configured to cause a rotational motion by the operation of the drive motor (20b-1) configured to connect. The method of claim 1, wherein the rotation generating means (25b) is connected to the control means 50 is composed of a solenoid member which is operated in accordance with the supply of power and a rotor having a magnetic force installed thereon fine Particle classifier. 2. The microparticle classifier of claim 1, wherein the rotor is a bar magnet. The microparticle classifier according to claim 4, wherein the cross section of the bar magnet has a right triangle shape. According to claim 1, wherein the cyclone means 25 is connected to the pipe provided in the tank housing 21 on one side and the other side through the outer cyclone member (25a) coupled to the collecting box (25a-1) inside Separation filter (25b-1) is installed to separate to a predetermined size at one end installed, the other side is fine particle sorter, characterized in that consisting of the inner cyclone member (25b) connected to the outlet filter means (30a). 7. The fine particle classifier according to claim 6, wherein the separation filter (25b-1) is attached and separated. 7. The fine particle classifier according to claim 6, wherein the outer cyclone member (25a) is further provided with a vibration member. 9. The fine particle classifier of claim 8, wherein the vibrating member is an ultrasonic vibrator. 2. The fine particle classifier according to claim 1, wherein at least one cyclone means (25) is connected and installed. The microparticle classifier according to claim 1, further comprising a microparticle observation sensor (26) for measuring the permeability which varies according to the amount of microparticles floating on the tank housing (21). According to claim 1, wherein the tank housing (21) fine particle sorter, characterized in that made of a transparent material. 13. The fine particle sorter according to claim 12, wherein the tank housing (21) is made of glass material. The microparticle classifier according to claim 11, wherein the microparticle observation sensor is an optical sensor comprising a light receiving unit and a light emitting unit.

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