KR20200032499A - Apparatus for manufacturing nanopowder using thermal plasma - Google Patents

Abstract

The present invention relates to a device for continuously preparing nanopowder using transfer-type thermal plasma. To continuously prepare nanopowder, the device comprises: a reaction chamber vaporizing raw materials using plasma electrodes and crucibles; a raw material supply portion connected to one side of the reaction chamber and supplying the raw materials to the reaction chamber; a transfer film which moves along a closed loop while collecting and transferring the vaporized raw materials or crystallized nanopowder from an upper portion of the inside of the reaction chamber; and a collection portion connected to the other side of the reaction chamber and collecting the nanopowder transferred through the transfer film. The raw material supply portion can include an automatic feeding device for supplying the raw materials to the reaction chamber in a vacuum state by the rotation of a screw which is wound spirally, and the crucible can be rotated or adjusted in height and can have a double structure. The present invention having the configuration as described above can produce and collect nanopowder in a large quantity, can flexibly control the amount of evaporation and the rate of evaporation, and can continuously obtain a large amount of homogeneous nanopowder.

Description

Continuous production of nano powders using a transfer-type thermal plasma {APPARATUS FOR MANUFACTURING NANOPOWDER USING THERMAL PLASMA}

The present invention relates to a continuous production apparatus for a nanopowder using a transferable thermal plasma, and more specifically, it is possible to produce a large amount of nanopowder using a transferable thermal plasma and to continuously supply raw materials, to manufacture and collect the nanopowder. It relates to a continuous production apparatus for nano-powder using a transfer thermal plasma.

In general, nano-powder refers to a material having a dimension of less than 100 nm. Nano-powder technology is driving revolutionary changes in all industries including materials, electricity, electronics, bio, chemical, environment, and energy by enabling control and manipulation at the atomic and molecular level of materials.

As a method of manufacturing such a nano powder, there are a wet method or a mechanical grinding method, but in the case of the wet method, there is a problem in that the process is complicated, productivity is low, and harmful substances are discharged to the environment, and the mechanical grinding method produces nano powders of a certain size or less. Have a hard time.

Recently, a method of manufacturing a nano powder using plasma has been disclosed. In the production of nano powders using thermal plasma, when raw material particles are introduced into an ultra-high temperature thermal plasma having a heat source of about 10000 ℃, the vaporized atoms are nucleated into nanoparticles by being completely vaporized and cooled again. Use principles.

The manufacturing method of the nano powder using thermal plasma can be divided into a transported type and a non-transferred type depending on the structure of the torch. In the case of the non-transfer type, all electrodes are mounted inside the torch to generate arcs at the electrodes inside the torch, and the arcs are blown out by the carrier gas from the rear. In the case of the transfer type, the anode and the anode are spaced apart at regular intervals, and the distance between them is adjusted to adjust the arc length.

Republic of Korea Patent Registration No. 10-0788412 discloses an apparatus for manufacturing a nano-powder using thermal plasma. The registered patent includes a power supply unit 110, a plasma torch unit 120, a reaction chamber 130, a vacuum pump 140, a cooling tube 150, a collection unit 160, a scrubber 170, and reaction A structure in which a sample evaporated by plasma in a chamber passes through a cooling tube, crystallizes into nano-powder and is collected in a collection part is disclosed.

However, when the above structure is used, it is difficult to continuously supply raw materials, and after the cooling tube, the nano-powder is collected through a separate collecting device, so the collection process of the nano-powder is complicated and difficult to continuously collect.

In addition, there is a problem that there is a limitation in controlling the amount of evaporation in the above structure or synthesizing different kinds of raw materials in the gas phase.

(Document 0001) Republic of Korea Patent Registration No. 10-0788412 (Registration date: 2007.12.17.) (Document 0002) Republic of Korea Patent Registration No. 10-1055991 (Registration date: 2011.08.04.)

An object of the present invention, invented in view of the above, is to provide a continuous production apparatus for nanopowders for efficiently collecting nanopowders, capable of continuous production, and efficiently collecting nanopowders having a uniform particle size.

In addition, it is to provide a continuous production apparatus for nano-powders that is easy to control the amount of evaporation of raw materials and can synthesize different raw materials in the gas phase.

Continuous nano-powder manufacturing apparatus using a transfer type thermal plasma according to an embodiment of the present invention is connected to one side of the reaction chamber, the reaction chamber for vaporizing the raw material using a plasma electrode and a crucible, and supplying the raw material to the reaction chamber It collects and transports the raw material or crystallized nano-powder vaporized from the upper part of the raw material supply unit and the reaction chamber, and transfers the transfer film moving along the closed loop, connected to the other side of the reaction chamber, and recovers the transferred nano powder through the transfer film. Includes collection.

In addition, it is connected to the transfer film may further include a cooling plate for cooling the transfer film to a set temperature.

In addition, it may further include a scraper that is in contact with one side of the transfer film to scrape the nano powder transferred by the transfer film.

In addition, the raw material supply unit further includes an automatic feeding device that supplies the raw material into the reaction chamber, and the automatic feeding device includes a feeding housing, a feeding screw provided in a spiral shape inside the feeding housing, a feeding motor and a feeding motor that drives the feeding screw. It is connected to the housing and includes a feeding nozzle that supplies the raw material to the inside of the reaction chamber, and the inside of the feeding housing can move the raw material in an extrusion manner by rotating the feeding screw in a vacuum.

In addition, it may further include an electrode height adjusting means coupled to the support frame and the support frame for supporting the reaction chamber to be positioned at a set height, connected to the plasma electrode, and adjusting the height of the plasma electrode according to the driving of the ball screw.

In addition, it may further include a crucible height adjusting means coupled to the support frame and the support frame for supporting the reaction chamber to be positioned at a set height, connected to the crucible, and adjusting the height of the crucible according to the driving of the ball screw.

In addition, the support frame for supporting the reaction chamber to be positioned at a set height, the crucible engaged with the support frame, connected to the crucible, and formed vertically and extending along the circumference of the crucible center axis, the first gear and the first gear A second gear for rotating the central axis may be further included.

In addition, the crucible has a first track having a shape settled in the downward direction, an inner circumference larger than the outer circumference of the first track, and a second track having a shape settled in the downward direction and provided between the first and second tracks And a blocking jaw blocking the first track and the second track.

In addition, there are a plurality of automatic feeding devices, and raw materials can be supplied to the first track and the second track, respectively.

In addition, there are a plurality of automatic feeding devices, and different raw materials can be supplied to the first track and the second track, respectively.

According to an embodiment of the present invention, it is easy to mass-produce nanopowder using various raw materials, and the vaporized raw material is collected from the transfer film and crystallized into nanopowder, thereby shortening the production process and time of the nanopowder.

In addition, the amount of evaporation of the raw materials can be controlled by a crucible having multiple structures, and different raw materials can be synthesized in the gas phase.

In addition, it is easy to control the length of the arc and the temperature of the plasma by adjusting the height and rotation of the crucible and the height of the electrode, and it is possible to control the evaporation rate and amount.

In addition, it is easy to control the supply amount and speed of the raw material from the automatic feeding device.

In addition, it is possible to maximize the production of nanopowder by applying multiple electrodes simultaneously.

In addition, the structure in which the nano powder is generated, captured, and packaged in a vacuum state can be prevented from surface oxidation due to atmospheric exposure, thereby minimizing the oxygen content of the nano powder.

1 is a block diagram schematically showing a nano-powder continuous manufacturing apparatus according to an embodiment of the present invention.
2 and 3 is a perspective view showing a nano-powder continuous manufacturing apparatus according to an embodiment of the present invention.
Figure 4 is a side cross-sectional view showing a continuous manufacturing apparatus for nano powders according to an embodiment of the present invention.
5 is a side view showing an automatic feeding device according to an embodiment of the present invention.
6 is a detailed view showing the structure of a crucible according to an embodiment of the present invention.
7 is a detailed view showing a crucible and a crucible electrode according to an embodiment of the present invention.
8 is a detailed view showing a plasma electrode according to an embodiment of the present invention.
Figure 9 is an exemplary view showing the modularity of the four nano-powder continuous manufacturing apparatus according to an embodiment of the present invention.

In the description of the present invention, when it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

The embodiments according to the concept of the present invention may be modified in various ways and have various forms, and thus, specific embodiments will be illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention to a specific disclosure form, and it should be understood that it includes all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

The terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the "inclusive" or "gajida" and the terms are staking the features, numbers, steps, operations, elements, parts or geotyiji to be a combination thereof specify the presence, of one or more other features, integers It should be understood that it does not preclude the existence or addition possibilities of, steps, actions, components, parts or combinations thereof.

Hereinafter, the present invention will be described in detail.

1 is a block diagram schematically showing an apparatus for continuously manufacturing a nanopowder according to an embodiment of the present invention, and FIGS. 2 and 3 are perspective views showing an apparatus for continuously producing a nanopowder according to an embodiment of the present invention, and FIG. 4 Is a side cross-sectional view showing an apparatus for continuously manufacturing a nanopowder according to an embodiment of the present invention.

Referring to Figures 1 to 4, the nano-powder continuous manufacturing apparatus using a transfer-type thermal plasma according to an embodiment of the present invention using a plasma electrode 160 and a crucible 110 to vaporize the raw material reaction chamber (100), connected to one side of the reaction chamber 100, the raw material supply unit 200 for supplying the raw material to the reaction chamber 100, the vaporized raw material in the upper inside of the reaction chamber 100 or A collecting film for collecting and transporting the crystallized nano-powder and connected to the other side of the transfer film 180 moving along the closed loop, the other side of the reaction chamber 100, and a collecting unit for recovering the nano-powder transferred through the transfer film 180 ( 300).

Briefly explaining the overall structure of the present invention, a plasma electrode 160, a crucible 110, and a transfer film 180 are provided inside the reaction chamber 100, and raw materials are supplied to one side of the reaction chamber 100. A raw material supply unit 200 is provided, and a collection unit 300 in which nanomaterials are collected is provided on the other side. A support frame positioned at a predetermined height while supporting the reaction chamber 100 may be provided below the reaction chamber 100, and the support frame may include the reaction chamber 100 as well as the collection part 300 or Each of the raw material supply units 200 may be supported at a set height. The raw material supplied from the raw material supply unit 200 is vaporized and condensed inside the reaction chamber 100 to change into a nano powder, and the changed nano powder is collected by the collection unit 300.

The reaction chamber 100 of the present invention has a closed structure, and one side is provided with a material supply port 101 connected to the raw material supply unit 200 and a vacuum port 102 connected to a vacuum pump P or the like. The side is connected to communicate with the collection unit 300. The reaction chamber 100, the collecting unit 300 and the raw material supply unit 200 is preferably maintained in a vacuum state.

5 is a side view showing the automatic feeding device 210 according to an embodiment of the present invention.

Referring to FIG. 5, the raw material supply unit 200 of the present invention may include an automatic feeding device 210 that supplies raw material into the reaction chamber 100.

The automatic feeding device 210 includes a feeding housing 211, a feeding screw 212 provided in a spiral shape inside the feeding housing 211, and a feeding motor 215 and the feeding housing for driving the feeding screw 212 It is connected to (211) and includes a feeding nozzle 214 for supplying the raw material into the reaction chamber 100, and the inside of the feeding housing 211 is rotated in the vacuum in the feeding screw 212 By this, the raw material can be moved by an extrusion method.

The feeding housing 211 has a closed structure in a cylindrical shape in the present invention and maintains a vacuum state therein. The feeding nozzle 214 may be connected to one side of the feeding housing 211 and the feeding motor 215 may be connected to the other side. In addition, the feeding housing 211 may be connected to one side of the reaction chamber 100 so that the feeding nozzle 214 smoothly supplies raw materials to the crucible 110 provided inside the reaction chamber 100. .

The feeding housing 211 is provided with an opening / closing opening 213 through which raw materials are supplied, and the opening / closing opening 213 preferably uses a load-lock type valve to minimize the influence on the internal vacuum environment of the feeding housing 211. Do. The raw material introduced through the opening and closing opening 213 is moved in the direction of the feeding nozzle 214 by rotation of the feeding screw 212. The feeding nozzle 214 may continuously supply the raw material to the crucible 110 provided inside the reaction chamber 100.

In addition, a feeding heater 216 may be connected to the outside of the feeding housing 211 so that a raw material accommodated inside the feeding housing 211 has a set temperature, and the feeding heater 216 may be provided in plural. have.

One side of the feeding housing 211 is coupled to the material supply port 101, in which case the feeding nozzle 214 connected to the feeding housing 211 is located inside the reaction chamber 100. The feeding nozzle 214 may have various shapes and structures, and the feeding nozzle 214 may be a plurality.

The crucible 110 and the plasma electrode 160 are provided inside the reaction chamber 100 of the present invention. The crucible 110 and the plasma electrode 160 are arranged to be separated from each other by a certain distance, and the plasma generated from the plasma electrode 160 generates an arc in the direction of the crucible 110.

6 is a detailed view showing the structure of the crucible 110 according to an embodiment of the present invention, and FIG. 7 is a detailed view showing the crucible 110 and the crucible electrode 120 according to an embodiment of the present invention.

Referring to FIGS. 6 and 7, the crucible 110 is connected to the crucible electrode 120 and can withstand a high temperature atmosphere and may be made of graphite to allow electric current to pass through. The crucible electrode 120 is connected to the lower center of the crucible 110 and cooling water may be separately introduced and discharged from the crucible electrode 120.

6, in one embodiment of the present invention, the crucible 110 may have a double structure.

The crucible 110 has a first track 111 of a shape settled in the downward direction, a second track 112 having a shape of an inner circumference larger than the outer circumference of the first track 111 and settled in the downward direction. And a blocking jaw 113 provided between the first track 111 and the second track 112 and blocking the first track 111 and the second track 112. Raw materials supplied from the automatic feeding device 210 may be accommodated in the first track 111 and the second track 112, respectively, in accordance with the first track 111 and the second track 112. The plasma electrode 160 may be a plurality. For example, the plasma electrode 160 may include two plasma electrodes 160 on the first track 111 and four plasma electrodes 160 on the second track 112. The number and position of the plasma electrode 160 may be determined in consideration of the circumference of the first track 111 or the second track 112.

The first track 111 and the second track 112 may be supplied with raw materials of the same material or raw materials of different materials. In this case, the automatic feeding device 210 is plural and supplies the raw material to the first track 111 and the second track 112, respectively. That is, the feeding nozzle 214 supplies raw materials of the same material or different materials to the first track 111 and the second track 112, respectively.

The crucible 110 of the present invention having a double structure as described above is the amount or rate of evaporation due to the difference in the position and temperature of the first track 111 and the second track 112 when the raw material of the same material is supplied It can be adjusted effectively. In addition, when raw materials of different materials are supplied, the different raw materials can be synthesized in the gas phase, thereby making it easier to manufacture the composite nano powder.

In one embodiment of the present invention, a crucible height adjusting means 140 for adjusting the height of the crucible 110 or a crucible rotating means 150 for rotating the crucible 110 may be provided.

Referring to FIG. 4, the crucible 110 is provided with a crucible center shaft 130 formed to extend vertically while being connected to the crucible 110 while passing through the reaction chamber 100. ) Further includes a first gear 151 provided along the circumference of the crucible center axis 130 and a second gear 152 engaged with the first gear 151 to rotate the crucible center axis 130. can do. In this case, the second gear 152 is connected to the motor and can be rotated according to the operation of the motor. Specifically, the crucible center shaft 130 is located inside the support frame, the first gear 151 is fixedly coupled to the lower portion of the crucible center shaft 130, and the second gear 152 is The first gear 151 may be connected to the motor in an engaged state. According to the operation of the motor, the second gear 152 rotates clockwise or counterclockwise around a vertical line, and the first gear 151 is rotated by the rotation of the second gear 152. Rotate 110) clockwise or counterclockwise. The motor may be a hydraulic motor driven by hydraulic pressure, and the first gear 151 and the second gear 152 may have a structure such as a spur gear, a worm gear, or a bevel gear.

In the present invention having the above structure, it is possible to control the temperature of the raw material accommodated in the crucible 110 by rotating the crucible 110 connected to the crucible center shaft 130, and accordingly the evaporation rate of the raw material or The amount of evaporation can be adjusted. For example, the raw material accommodated in the crucible 110 may have a different temperature or evaporation amount depending on the location. In the present invention, even rotation of the crucible 110 enables the evaporation of evenly selected raw material and the crucible 110. The evaporation rate or the amount of evaporation is controlled by adjusting the relative positions of the raw material and plasma electrode 160 accommodated in the interior at a distance or close to each other.

In addition, in the present invention, the crucible height adjustment means 140 is coupled to the support frame and connected to the crucible 110 while passing through the reaction chamber 100, and the crucible according to the driving of a ball screw ( 110). For example, although the crucible height adjusting means 140 is not shown in the drawing of the present invention, the first screw shaft 143 (not shown), which extends in the vertical direction and is spirally wound, and the first screw shaft 143 A first screw motor 144 (not shown) for rotating the first screw nut 145 fastened to the first screw shaft 143 and reciprocating up and down according to the rotation of the first screw shaft 143 ( (Not shown), the first ball nut 145 is fixed to the crucible center shaft 130 and the crucible center shaft 130 and the crucible by vertical reciprocating motion of the first ball nut 145 110) may have a structure that reciprocates up and down. In this case, both sides of the first ball nut 145 may be separately connected to the support frame to prevent horizontal departure due to reciprocating motion. The shape of the first ball nut 145 may be varied, and the first screw shaft 143 may be plural.

The present invention provided with the crucible height adjustment means 140 is easy to adjust the height of the crucible 110, it is easy to adjust the amount of evaporation of the raw material according to the arc length or plasma temperature.

8 is a detailed view showing a plasma electrode 160 according to an embodiment of the present invention.

3 and 8, the plasma electrode 160 of the present invention is provided at a predetermined distance from the crucible 110 and forms a hot cathode. A tip 161 made of tungsten may be fastened to an end of the plasma electrode 160, and coolant may be separately introduced and discharged at the bottom. In addition, the plasma electrode 160 may be provided with an electrode center shaft 162 formed extending in a vertical direction and a connection terminal 163 connected to a power source on one side of the electrode center shaft 162. In this case, the cooling water may be introduced into the electrode center shaft 162.

In the present invention, an electrode height adjusting means 170 for adjusting the height of the plasma electrode 160 may be further included. Specifically, the electrode height adjusting means 170 is coupled to the support frame, connected to the plasma electrode 160 and can adjust the height of the plasma electrode 160 according to the driving of a ball screw. When the electrode center shaft 162 penetrates the interior of the reaction chamber 100 and is connected to the plasma electrode 160, the electrode height adjusting means 170 adjusts the height of the electrode center shaft 162. The height of the plasma electrode 160 can be adjusted.

For example, the electrode height adjusting means 170 is coupled to the support frame and is formed to extend in the vertical direction and rotates according to the operation of the second screw motor 172, the second screw shaft 171, the second screw It is fastened to the shaft 171 and includes a second ball nut 173 reciprocating up and down according to the rotation of the second screw shaft 171, the second ball nut 173 and the electrode center shaft 162 The plasma electrodes 160 connected to the electrode center shaft 162 may be moved up and down according to the vertical reciprocating movement of the second ball nut 173 connected to each other. The structures of the second screw shaft 171, the second screw motor 172, and the second ball nut 173 are the aforementioned first screw shaft 143, the first screw motor 172, and the second ball nut ( 145).

In the present invention having the above configuration, the height of the plasma electrode 160 is controlled to adjust the length of the arc generated in the plasma electrode 160 or the evaporation rate or evaporation rate of the raw material.

The rotation of the crucible 110, the height adjustment of the crucible 110 or the height adjustment of the plasma electrode 160 may be changed to have various configurations or structures within the scope of the present invention.

The plasma electrodes 160 may be plural, and the plural plasma electrodes 160 may be arranged at regular intervals according to the shape of the crucible. For example, when the crucible has the above-described dual structure, two plasma electrodes 160 are disposed on the first track 111 and four on the second track 112, and a plurality of plasma electrodes 160 are provided. By simultaneously applying, it is possible to maximize the production of nano powder.

In addition, the structure in which the nano powder is generated, captured, and packaged in a vacuum state can be prevented from surface oxidation due to atmospheric exposure, thereby minimizing the oxygen content of the nano powder.

The transport film 180 of the present invention captures and transports the vaporized raw material through the plasma electrode 160 and the crucible 110, wherein the transport film 180 is provided to be spaced apart from the crucible 110 by a certain distance. And some or all of the transfer film 180 is provided on the upper portion of the reaction chamber (100).

The transfer film 180 is formed of a metal and may collect the vaporized raw material on the surface of the transfer film 180 by electrical or magnetic properties.

The transfer film 180 moves along the closed loop, and both sides of the transfer film 180 are formed to extend in the horizontal direction, respectively, and are provided with a transfer shaft 181 supporting the transfer film 180, and the pair of Cooling water may be introduced into the transfer shaft 181, respectively. The transfer film 180 extends in the direction of the collection section 300 in the reaction chamber 100 and transfers the raw material collected in the reaction chamber 100 to the collection section 300. That is, while the transfer film 180 moves on the caterpillar along the closed loop, it moves inside the collection part 300 within the reaction chamber 100. In addition, the transfer shaft 181 may be provided to penetrate the reaction chamber 100 or the collection part 300 in the horizontal direction to facilitate the introduction or discharge of cooling water.

A motor that rotates the transfer film 180 or the transfer shaft 181 may be provided outside the reaction chamber 100 or the collection part 300.

In one embodiment of the present invention may be further connected to the transfer film 180 and further includes a cooling plate 182 that cools the transfer film 180 to a set temperature.

The cooling plate 182 cools the transfer film 180 to a predetermined temperature, and may contact the inner surface of the transfer film 180. In this case, the vaporized raw material is collected on the outer surface of the transfer film 180 and cooled to a temperature set through the cooling plate 182 in the direction of the collection part 300 in the reaction chamber 100. As it moves, it can be condensed and crystallized into nano powder. Cooling of the transfer film 180 through the cooling plate 182 may be using cooling water or using an inert gas at a set temperature.

One side of the transfer film 180 may be provided with a scraper 183 that is in contact with the transfer film 180 to scrape the nano powder transferred by the transfer film 180. The scraper 183 is formed to extend in the width direction of the transfer film 180 and is located in the collection part 300. In one embodiment of the present invention, the scraper 183 is in contact with the lower surface of the transfer film 180 and the nano-powder is separated from the transfer film 180 by the scraper 183 to collect 300 Is collected through.

The collection unit 300 of the present invention is connected to the first collection unit 310 and the first collection unit 310 for collecting the nano-powder separated from the transfer film 180, the first collection unit 310 It may be composed of a second collection unit 320 for collecting and transporting the collected nano-powder through, and a powder recovery unit 330 through which the nano-powder moved through the second collection unit 320 is recovered.

Specifically, the first collection part 310 is provided with a vacuum port 102 connected to a vacuum pump (P), and the like, and moves the nano powder in a downward direction in an environment in which the inside is vacuum. A load lock valve or a gate valve may be provided in the first collecting part 310, and various configurations for collecting and moving the nano powder while maintaining a vacuum state may be additionally provided. The second collecting part 320 is provided with a vacuum port 102 connected to a vacuum pump P or the like, and may have the same configuration as the first collecting part 310. The nano-powder that has passed through the first collecting portion 310 and the second collecting portion 320 is finally recovered from the powder recovery portion 330. It is preferable that the first collection part 310 and the second collection part 320 are independently formed in a vacuum environment, and internal pressures may be different.

In addition, the upper portion of the collection portion 300 is provided with a viewport 301 formed of a transparent material and through the viewport 301 it is possible to visually check the internal situation of the collection portion 300.

The powder recovery unit 330 may be connected to the packaging container 340, a load lock valve is provided to move the nano-powder into the packaging container 340 by a predetermined amount in a vacuum state. In addition, the powder recovery unit 330 may be provided with a screw conveyor, the screw conveyor serves to move the nano-powder to a predetermined position while maintaining a vacuum state according to the rotation of the screw wound in the form of a screw.

The present invention having the above configuration is easy to mass-produce nano-powder with the configuration of the automatic feeding device 210 and the transfer film 180 in the production of nano-powder by using a transfer thermal plasma, evaporation and evaporation of raw materials The speed can be adjusted flexibly and a more homogeneous nanopowder can be recovered in a vacuum.

In the present invention, the raw material supply unit 200, the reaction chamber 100, and the collection unit 300 are all equipped with a vacuum port 102 and connected to a vacuum pump P, thereby supplying raw material in a vacuum environment, of nano powder. Creation and collection can proceed. The present invention, which maintains the above vacuum environment, has a structure of generating, collecting, and packaging nanopowders in a vacuum state, thereby preventing surface oxidation caused by atmospheric exposure to minimize the oxygen content of the nanopowders. In addition, supply of raw materials, generation of nano-powders from the components of the automatic feeding device 210, the transfer film 180, the first collecting portion 310 and the second collecting portion 320, the collection, packaging is continuous Consisting of, mass production is easier.

Figure 9 is an exemplary view showing the modularity of the four nano-powder continuous manufacturing apparatus according to an embodiment of the present invention.

As illustrated in FIG. 9, the nano-powder continuous manufacturing apparatus can be operated in one module by connecting four in parallel. In this case, by efficiently operating the vacuum pump (P), the automatic feeding device 210, cooling water, etc., it is possible to promote efficient production of nano powder.

According to the present invention having the above configuration, it is possible to continuously supply the raw material to the reaction chamber, to continuously recover the nano powder generated in the reaction chamber, and to easily supply the raw material, automate the production and collection of the nano powder. Do. In addition, as it progresses in a vacuum environment, it is possible to produce, collect and collect high-quality nano powders.

100: reaction chamber
101: material supply port 102: vacuum port
110: crucible 111: first track
112: second track 113: blocking jaw
120: crucible electrode 130: center of the crucible
140: crucible height adjustment means
143: 1st screw shaft 144: 1st screw motor
145: 1st ball nut
150: crucible rotating means 151: first gear
152: second gear
160: plasma electrode 161: tip
162: electrode center axis 163: connection terminal
170: electrode height adjustment means 171: second screw shaft
172: Second screw motor 173: Second ball nut
180: transfer film 181: transfer axis
182: cooling plate 183: scraper
200: raw material supply unit 210: automatic feeding device
211: Feeding housing 212: Feeding screw
213: opening and closing 214: feeding nozzle
215: Feeding motor 216: Feeding heater
300: collection part
301: viewport
310: first collection unit 320: second collection unit
330: powder recovery unit 340: packaging container
400: support frame
P: Vacuum pump

Claims (10)

A reaction chamber for vaporizing the raw material using a plasma electrode and a crucible;
A raw material supply part connected to one side of the reaction chamber and supplying the raw material to the reaction chamber;
A transfer film that collects and transports the vaporized raw material or crystallized nano-powder from the upper inside of the reaction chamber and moves along a closed loop;
It is connected to the other side of the reaction chamber and collecting unit for recovering the nano-powder transferred through the transfer film; Nano-particle continuous manufacturing apparatus using a transfer-type thermal plasma comprising a.
According to claim 1,
It is connected to the transfer film and further comprising a cooling plate for cooling the transfer film to a set temperature, the nano-powder continuous manufacturing apparatus using a transfer type thermal plasma.
According to claim 2,
Continuous nano-powder production apparatus using a transfer-type thermal plasma, characterized in that it further comprises a scraper that is in contact with one side of the transfer film to scrape the nano-powder transferred by the transfer film.
According to claim 2,
The raw material supply unit further includes an automatic feeding device that supplies the raw material into the reaction chamber,
The automatic feeding device,
The feeding housing;
A feeding screw provided in a spiral shape inside the feeding housing;
A feeding motor driving the feeding screw; And
It includes a feeding nozzle which is connected to the feeding housing and supplies the raw material into the reaction chamber.
Continuous manufacturing apparatus for nano powders using a transferable thermal plasma, characterized in that the inside of the feeding housing moves the raw material in an extrusion manner by rotation of the feeding screw in a vacuum.
The method of claim 4,
A support frame that supports the reaction chamber and positions it at a set height; And
It is coupled to the support frame and connected to the plasma electrode, the electrode height adjustment means for adjusting the height of the plasma electrode according to the driving of the ball screw; Nano powder continuous manufacturing apparatus using a transfer thermal plasma further comprising: .
The method of claim 4,
A support frame that supports the reaction chamber and positions it at a set height; And
Continuously coupled to the support frame and connected to the crucible, the crucible height adjusting means for adjusting the height of the crucible according to the drive of the ball screw; Nano powder continuous manufacturing apparatus using a transfer thermal plasma further comprising.
The method of claim 4,
A support frame that supports the reaction chamber and positions it at a set height;
A crucible center shaft coupled to the support frame and connected to the crucible and vertically extending;
A first gear provided along the circumference of the crucible center axis; And
The second gear for rotating the center of the crucible while engaging with the first gear; Nano powder continuous manufacturing apparatus using a transfer type thermal plasma further comprising.
The method of claim 4,
The crucible,
A first track having a shape settled downward;
A second track having an inner circumference larger than the outer circumference of the first track and sedimented in a downward direction; And
It is provided between the first track and the second track, the blocking block for blocking the first track and the second track; Nano continuous powder manufacturing apparatus using a transfer type thermal plasma comprising a.
The method of claim 8,
The automatic feeding device is plural, and the nano-powder continuous manufacturing apparatus using a transferable thermal plasma is characterized in that the raw material is supplied to the first track and the second track, respectively.
The method of claim 8,
The automatic feeding apparatus is a plurality of nano-powder continuous manufacturing apparatus using a transfer type thermal plasma, characterized in that to supply different raw materials to the first track and the second track, respectively.

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