KR200281570Y1 - Nano powder extraction apparatus for revolution impeller - Google Patents

Abstract

The present invention is a nano powder extraction device using the rotation of the hollow impeller, so that the powder contained in the plasma gas can be effectively dissolved in the surfactant to extract the nano powder by size, and absorbs the nano powder through the surfactant As a result, it is intended to be applied to highly reactive materials by preventing recombination between nanopowders, and is filled with a surfactant solution and has a plurality of powder extraction tubes and solution inlets and outlets mounted at different heights on sidewalls. Collecting means including a tank having; It is mounted inside the tank to supply the gas containing the nano powder to be rotated into the solution, and vertically penetrates the inside of the tank and is provided with a supply hollow hole connected to the gas injection device to supply the gas. And a gas supply means including one or more supplying impellers which are horizontally mounted around the rotating shaft which is the upper part of the supply hollow hole and is provided with a plurality of diffusion hollow holes penetrating the supply hollow hole. will be.

Description

Nano powder extraction apparatus for revolution impeller using rotation of hollow impeller

The present invention relates to an apparatus for extracting nanopowder using rotation of a hollow impeller, and more particularly, to rotating a hollow impeller capable of extracting nanoparticles contained in plasma gas by size in ejecting nanopowder using plasma. It relates to a nano powder extraction apparatus using.

In general, as a method of extracting nanopowders in the production of nanopowders using plasma, a method of collecting nanopowders using a filter and a method of scraping and extracting nanopowders attached to the surface of a low temperature vessel wall are adopted.

However, when applying the prior art as described above had a problem that can not be collected by separating the powder size.

In addition, as the nanopowders are in contact with each other, there is a problem in that the application is limited only to non-reactive oxide-based materials (such as alumina).

The present invention is designed to solve the above problems, nano powder extraction using the rotation of the hollow impeller to effectively dissolve the powder contained in the plasma gas (gas) in the surfactant to extract the nano powder by size It is an object to provide a device.

In addition, by absorbing and collecting the nanopowder through the surfactant to prevent recombination between the nanopowder, it has a purpose that can be applied to a material that is not reactive, as well as highly reactive.

In addition, the upper and lower cold and hot water circulation chamber is provided around the tank so as to adjust the temperature in the tank, so that the effect of classifying the nanopowder by heat transfer of temperature change is also desired.

In addition, a gas regeneration means is installed in the tank to collect undissolved gas, regenerate it into cryogenic gas, and resupply it into the tank to prevent explosion of highly reactive nanopowders present in trace amounts in the undissolved gas.

The present invention for achieving the above object, the collecting means comprising a tank having a plurality of powder extraction tube and the solution inlet, outlet and the surface filled with a surfactant solution and mounted on the side wall with a different height; It is mounted inside the tank to supply the gas containing the nano powder to be rotated into the solution, and vertically penetrates the inside of the tank and is provided with a supply hollow hole connected to the gas injection device to supply the gas. And a gas supply means including one or more supplying impellers which are horizontally mounted around the rotating shaft which is the upper part of the supply hollow hole and is provided with a plurality of diffusion hollow holes penetrating the supply hollow hole. will be.

1 is an overall configuration diagram showing an extracting apparatus of the present invention.

Figure 2 is an enlarged view showing a drive shaft of the present invention.

3 and 4 is a perspective view showing the supply, recovery impeller according to the present invention.

<Description of the symbols for the main parts of the drawings>

1: collection means

11: tank

12: powder extraction tube

13: entrance

14: exit

2: gas supply means

21: drive rotation shaft

211: supply hollow hole

22: supply impeller

221: diffusion hollow hole, 222: circular plate, 223: arc protrusion wing,

224: resistance groove

23: gas injection device

3: gas recovery means

31: recovery hollow hole

311: recovery hole

32: recovery impeller

321: diffusion impingement hole, 322: circular plate, 323: arc protrusion wing,

324: resistance groove

4: impeller

5: horizontal perforated plate

6: temperature control means

61: upper cold and hot water circulation chamber

62: lower cold and hot water circulation chamber

7: gas regeneration means

71: circulation tube

72: filter

73: liquid separator

74: gas regenerator

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

1 is an overall configuration diagram showing an extraction device of the present invention, Figure 2 is an enlarged view showing a drive axis of the present invention.

A plurality of powder extraction tubes (12) and valve inlets and outlets (13), which are filled with a surfactant solution (hereinafter referred to as "solution" for convenience) and which have different heights to extract nanopowders of different sizes, A collecting means 1 including a tank 11 provided with a 14, and a gas supply means 2 for supplying a plasma gas (hereinafter referred to as " gas " for convenience) to be dispersed into the solution. It is characterized by consisting of).

In particular, the gas supply means 2, which is mounted inside the tank 11, vertically penetrates the inside of the tank 11 and is connected to the gas injection device 23 in the lower portion of the supply hollow hole A plurality of diffusion hollow holes which are horizontally mounted around the driving rotation shaft 21 provided with the 211 and the rotation shaft 21 that is the upper portion of the supply hollow hole 211 and penetrate the supply hollow hole 211 ( And one or more supply impellers 22 provided with 221.

The drive shaft 21 is rotated through a drive motor mounted on the outside of the tank 11.

Therefore, when the gas is introduced into the supply hollow hole 211 of the drive rotary shaft 21 through the gas injection device 23 while the drive rotary shaft 21 is rotated by the operation of the drive motor, the supply The gas is dispersed in all directions through centrifugal force while passing through the plurality of diffusion hollow holes 221 formed in the supply hollow hole 211 and the supply impeller 22.

As the supply impeller 22 is rotated, a negative pressure is generated inside the supply hollow hole 211 formed in the drive rotation shaft 21, so that gas is easily sucked into the supply impeller 22. The discharge pressure of the diffusion hollow hole 221 is increased to maximize the degree of dispersion of the gas.

Therefore, by dispersing the gas in all directions through the rotation of the supply impeller 22 as described above so that the nanopowder in the gas can be quickly absorbed into the surfactant solution without recombination. In this case, the surfactant wraps the nanopowder to prevent explosion when the nanoparticles are highly reactive.

On the other hand, when the supply impeller 22 is rotated, a fluid layer is formed at the upper and lower portions of the impeller 22 as a boundary, and the large nanopowder is located at the bottom by its own weight due to the fluid layer. Sitting), relatively small powder will be present (injury) on top. Therefore, nanopowders can be extracted by sizes using multi-stage powder extraction tubes 12 having different heights on the sidewalls of the tanks 11, and nanoparticles having relatively large particles can be extracted from the outlets 14 of the tanks 11. It can be extracted through.

As shown in FIGS. 1 and 2, the driving rotary shaft 21 penetrating the inside of the tank 11 vertically is formed from the middle to the upper portion of the driving rotary shaft 21, and a recovery hole 311 is formed thereon. And a plurality of diffusion hollow holes 321 horizontally mounted to the recovery hollow hole 31 having a) and the rotary shaft 21 which is lower than the recovery hollow hole 31 and communicating with the recovery hollow hole 31. Is provided with a gas recovery means (3) consisting of one or more recovery impellers (32).

Therefore, the undissolved gas raised to the upper portion of the solution flows into the recovery hole 311 formed in the drive rotary shaft 21 and is diffused and absorbed again into the solution through the recovery impeller 32 to increase the solubility of the gas, thereby increasing the nanopowder. Will increase the extraction effect.

3 and 4 are perspective views showing the supply and recovery impeller according to the present invention, the supply and recovery impellers 22 and 32 mounted on the drive rotary shaft 21 are circular plates 222 and 322 fixed to the drive rotary shaft 21. ) And a plurality of circular arc protrusions 223 and 323 formed at radially equal intervals on the upper and lower surfaces of the circular plates 222 and 322 and the diffusion hollow holes 221 and 321 formed therein.

Therefore, by spreading the solution horizontally through a plurality of arc protrusions (223,323) protruding to the upper and lower surfaces of the circular plate (222,322), to maximize the effect of the classification of the powder as a plurality of fluid layers are made between each impeller It can be.

That is, since the arc protrusions 223 and 323 protrude from the upper and lower surfaces of the circular plates 222 and 322, the solution and the resistance are large, so that the fluid layer can be clearly partitioned to prevent mixing of the nanoparticles of different sizes, as well as amplification of the vortex. Through this, the mixture of solution and gas can be maximized.

In addition, resistance grooves 224 and 324 which cause vortices in the solution are formed at the outer ends of the arc protrusions 223 and 323, thereby further maximizing the mixing of the solution and the gas.

As shown in Figure 1 and 2, the upper side of the recovery impeller 32 mounted on the drive rotary shaft 21 is mounted at least one impeller 4 horizontally, the classification extraction of the nano-powder having a very small size It is possible.

In addition, the horizontal perforated plate 5 having a plurality of holes is partitioned and fixed between the supply impeller 22 and the recovery impeller 32, which are inside the tank 11, to prevent a sudden rise of the nanopowder. It is also possible to prevent the nanoparticles of large particles located below the horizontal perforated plate 5 from rising.

As shown in Figure 1, the upper and lower portions around the tank 11 is provided with a temperature control means 6 consisting of upper and lower cold and hot water circulation chamber (61, 62) to adjust the temperature in the tank (11) In addition to the effect of classifying the fluid layer, the effect of classifying the nanopowder by heat transfer of temperature change can be added.

That is, at the initial gas inflow, the temperature of the upper and lower cold and hot water circulation chambers 61 and 62 are the same to prevent recombination of powders, thereby preventing explosions, and the production of powder is completed and the temperature of the upper cold and hot water circulation chamber 61. By abruptly lowering the effect of classifying the nanopowder by heat transfer.

In addition, the upper portion of the tank 11, the upper plate and the side wall upper portion of the tank 11 to recover the non-captured and raised nanogas in the tank 11 and re-introduced into the tank 11, A circulation pipe 71 connected to each other and equipped with a valve, and a gas regeneration means 7 including a filter 72, a liquid separator 73, and a gas regenerator 74 that are sequentially mounted on the circulation pipe 71 are provided. Is mounted.

Therefore, the gas regeneration means 7 recovers the trace nanoparticles uncollected from the gas through the filter 72, and then removes the trace amount of the solution evaporation through the liquid separator 73, after which The gas is collected and regenerated to cryogenic gas through a gas regenerator.

In addition, by supplying the regenerated cryogenic gas to the space above the solution in the tank, it is possible to prevent the explosion of the highly reactive nanopowder present in the trace amount in the gas to enable stable collection.

As described above, the present invention can effectively obtain nanopowders for various uses by effectively dissolving the powder contained in the gas in a surfactant and classifying and extracting the powder by size.

In addition, by absorbing and collecting the nano-powder through the surfactant there is an effect that can ensure the safety in the collection of highly reactive materials.

In addition, by adjusting the temperature of the upper and lower cold and hot water circulation chamber mounted around the tank, it is possible to increase the extraction effect of the nano powder by increasing the classification effect of the nano powder by heat transfer.

In addition, by collecting the undissolved gas and regenerating it into the cryogenic gas and supplying it into the tank, there is also an effect that can prevent the explosion risk of the highly reactive nano-powder present in the trace amount.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

Claims (8)

A collecting means 1 including a plurality of powder extraction tubes 12 filled with a surfactant solution and mounted at different heights on the sidewalls, and a tank 11 having solution inlets and outlets 13 and 14; It is mounted inside the tank 11 so as to supply the nano-powder-containing gas to be rotated into the solution, and vertically penetrates the inside of the tank 11 and connected to the gas injection device 23 at the bottom thereof. It is mounted horizontally around the driving rotary shaft 21 having a supply hollow hole 211 to which gas is supplied, and the rotating shaft 21 which is an upper portion of the supply hollow hole 211, and penetrates the supply hollow hole 211. Apparatus for extracting nanopowder using a rotation of a hollow impeller comprising a gas supply means (2) comprising at least one supply impeller (22) having a plurality of diffusion hollow holes (221). 2. The recovery hollow hole 31 according to claim 1, wherein the drive rotating shaft 21 is formed from the middle to the upper portion of the inside of the driving rotating shaft 21, and the recovery hollow hole 31 is provided with a recovery hole 311 thereon. Gas recovery means composed of one or more recovery impeller 32 mounted horizontally on the rotating shaft 21 which is a lower part of the hole 31 and having a plurality of diffusion hollow holes 321 communicating with the recovery hollow hole 31 ( 3) Nano-powder extraction apparatus using a rotation of the hollow impeller, characterized in that further provided. According to claim 1 or 2, wherein the supply and recovery impellers 22 and 32 are circular plates 222 and 322 fixed to the rotating shaft 21 and the upper and lower surfaces of the circular plates 222 and 322 at radial equal intervals. The nanopowder extraction apparatus using the rotation of the hollow impeller formed, characterized in that the plurality of circular arc protrusions (223, 323) formed integrally formed with the diffusion hollow hole (221, 321) therein. The nanopowder extraction apparatus using the rotation of the hollow impeller is characterized in that the grooves (224, 324) causing vortices in the solution is formed at the outer ends of the arc protrusions (223, 323). The rotation of the hollow impeller according to claim 1 or 2, wherein one or more impellers (4) are horizontally mounted on the upper side of the recovery impeller (32) mounted on the driving rotary shaft (21). Nano powder extraction device using. The horizontal structure of claim 1 or 2, wherein a plurality of holes are provided between the supply impeller 22 and the recovery impeller 32, which are inside the tank 11, to prevent a sharp increase of the nanopowder. The nano-powder extraction apparatus using the rotation of the hollow impeller, characterized in that the perforated plate (5) is fixed. 2. The temperature control means (6) according to claim 1, further comprising upper and lower cool and hot water circulation chambers (61, 62) for adjusting the temperature in the tank (11) above and below the tank (11). Nano-powder extraction apparatus using the rotation of the hollow impeller, characterized in that the mounting. The tank of claim 1, wherein the undisturbed gas that has been collected and raised in the tank 11 is recovered at an upper portion of the tank 11, and then regenerated into cryogenic gas and re-introduced into the tank 11. (11) the upper plate and the side wall upper part connected to each other, the circulation pipe 71, the valve is mounted, the filter 72, the liquid separator (73), the gas regenerator (74) mounted in this order in the circulation pipe (71) Nano-powder extraction apparatus using a rotation of the hollow impeller, characterized in that the gas regeneration means consisting of additionally mounted.