KR102071291B1 - Automatic filtering equipment for manufacturing electro-catalyst and method of filtering electro-catalyst using the same - Google Patents

Abstract

Disclosed herein is an electrocatalyst filtering device for automatically filtering and washing a large amount of electrocatalyst and an electrocatalyst filtration method using the same.
According to an embodiment of the present disclosure, the filtering device is a frame, a chamber portion formed in an open shape in the upper and lower portions, coupled with the frame, and detachable or attachable to the chamber portion at the upper portion of the chamber portion. Is coupled to the stirring portion is formed in the lower portion, the lower portion of the chamber portion is coupled to the detachable or attached to the chamber portion, the weight portion including a filter, a support container for receiving the filter and the load cells and the stirring And a control unit for controlling the unit and the chamber unit, wherein the control unit is disposed under the support container to sense a weight change of the support container through the load cells connected to the frame, and through the weight change of the support container. Analyze and mark the degree of filtration.

Description

Filtering apparatus for preparing electrocatalyst and method for filtering electrocatalyst using same {{AUTOMATIC FILTERING EQUIPMENT FOR MANUFACTURING ELECTRO-CATALYST AND METHOD OF FILTERING ELECTRO-CATALYST USING THE SAME}

The present disclosure relates to an electrocatalyst manufacturing apparatus and a method for filtering an electrocatalyst using the same, and to an electrocatalyst manufacturing apparatus capable of automatically mass production of an electrocatalyst and an electrocatalyst filtration method using the same.

Unless otherwise indicated herein, the contents described in this identification are not prior art to the claims of this application and the description in this identification is not admitted to be prior art.

Platinum-based electrode catalysts for fuel cells are one of the important components that generally enter PEMFCs (Polymer Electrolyte Membrane Fuel Cells) among fuel cells, and determine the performance of PEMFCs and are catalysts due to the characteristics of electrode catalysts using platinum. As the fuel cell has a high impact on fuel cell cost, catalyst-related development for fuel cell performance improvement and cost reduction is being made.

As commercialization of fuel cell vehicles, etc. has begun, mass production technology of parts and materials used in fuel cells has been attracting attention. Particularly, fuel cell catalysts, which are expensive materials, are manufactured using wet synthesis methods, but particles of electrode catalysts themselves. There is a disadvantage that it is difficult to control because of the small and difficult washing process.

In addition, the general large-scale filtration equipment has a structure that filters the solid material of the composite with impurities through a filter, and utilizes only the filtered solution composite, but in the case of a fuel cell catalyst, after filtering the composite, the solid material filtered through the filter is removed. It is necessary to develop large filtration equipment for fuel cell catalyst because it is used as a product.

Specifically, the synthesis of the conventional fuel cell is a total of four steps, the first step of mixing the reaction solution and the carbon carrier and adjusting the carbon particles to a predetermined size, the first step of preparing a catalyst through the reduction reaction of platinum A second step of separating the synthesized catalyst and the reaction solution, washing the catalyst, and a fourth step of drying and pulverizing the washed catalyst.

In this case, the third step of separating the synthesized catalyst and the reaction solution and washing the catalyst has to repeatedly wash the solid material remaining in the filter. There is this.

In this regard, Korean Patent Publication No. 10-1047710 discloses a filter device, and Korean Patent Publication No. 10-0504871 discloses a filtering device of a fuel cell system.

However, existing techniques do not disclose a technique for reducing the defective rate while increasing the productivity of the electrode catalyst.

An electrocatalyst filtering device for automatically filtering and washing a large amount of electrocatalyst and an electrocatalyst filtration method using the same are provided.

In addition, the present invention is not limited to the above-described technical problems, and it is apparent that other technical problems may be derived from the following description.

According to an embodiment of the present disclosure, the filtering device is coupled to the frame, the chamber portion is formed in an open shape in the upper and lower parts, coupled to the frame, and detachable or attached to the chamber portion on the upper portion of the chamber portion A weight part including a stirring part in which nozzles are formed at a lower part of the lower part of the chamber part so as to be detachable from or attached to the chamber part, and including a filter, a support container for accommodating the filter, and load cells. And a control unit for controlling the unit, wherein the control unit is disposed under the support container and senses a weight change of the support container through the load cells connected to the frame, and controls the filtration degree of the composite through the weight change of the support container. Analyze and display.

The chamber unit may further include a pressure pump connected to the inside of the chamber unit through the agitator to supply gas to the chamber unit to increase or decrease the pressure inside the chamber unit.

In addition, the lower portion of the load cells may be coupled to the support plate coupled to the load cells, and may further include a lifting portion formed to lower or raise the support plate.

In addition, the lifting unit is one end is coupled to the frame, the other end is extended to the upper coupled to the support plate, the lift frame surrounding one end of the lift coupled to the frame, the form surrounding the other end of the lift It may be formed to include a guide formed to guide the vertical movement of the lift.

In addition, the agitator is a cover that is coupled to the chamber portion detachably and one end is connected to the frame, the other end extends in a cylindrical form toward the bottom through the cover, the agitator is formed impeller on the other end surface Included, each of the impeller may be formed with holes or nozzles connected to the cleaning pump formed on the outside.

According to an embodiment of the present disclosure, an electrocatalyst filtration method using a filtering device may include a catalyst solution in the interior space of the chamber part in a state where the chamber part, the stirring part, and the weight part are combined to seal the chamber part. A first step of injecting, a second step of agitating the catalyst solution by rotating impellers coupled to the stirrer and increasing the pressure of the inner space through a high pressure pump connected to the stirring part; The third step of filtering the solution to the filter disposed inside the weight part, by detecting the weight change of the catalyst solution and the electrode catalyst left in the filter through the load cells formed in the weight portion to stop the filtration and through the nozzles A fourth step of washing the inside of the chamber part and the weight part is separated from the chamber part and lowered; And a fifth step of the scrap left over electrocatalyst.

According to an embodiment of the present disclosure, the filtering device is a filter device by rotating the impeller in the process of filtering the catalyst solution through the filter to prevent the phenomenon that the filtered electrocatalyst blocks the holes of the filter to increase the filtration efficiency of the catalyst solution There is an advantage to be improved.

In addition, the filtering device automatically detects the catalyst solution injected into the chamber and the weight of the electrode catalyst produced through the filtering to display the scrap time of the electrode catalyst or automatically expose the filter to the outside to improve the work efficiency There is this.

In addition, since the effects of the present invention described above are naturally manifested by the configuration of the described contents irrespective of whether or not the inventor recognizes them, the above-described effects are only some effects according to the contents described, and all effects that the inventors grasp or actually exist. It should not be accepted that it is listed.

In addition, the effects of the present invention will be further understood by the entire description of the specification, even if not described in explicit sentences even those having ordinary knowledge in the technical field to which the description belongs belong to this effect Any effect that can be regarded as should be seen as an effect described herein.

1 is a perspective view of a filtering device according to one embodiment of the disclosure disclosed herein.
FIG. 2 is a perspective view showing an example of another state of the filtering device of FIG. 1. FIG.
3 is an exploded perspective view illustrating a weight part by disassembling the filtering device of FIG. 1;
4 is a cross-sectional view taken along the line II ′ of FIG. 1.
5 is an exploded perspective view illustrating the stirring unit of the filtering device of FIG. 1.
6 is a cross-sectional view showing the driving of the filtering device of FIG.
FIG. 7 is a flowchart illustrating a method of filtering an electrocatalyst using the automation device of FIG. 1.

Hereinafter, with reference to the accompanying drawings looks at the configuration, operation and effects of the filtering device according to a preferred embodiment. For reference, in the following drawings, each component is omitted or schematically illustrated for convenience and clarity, the size of each component does not reflect the actual size, and the same reference numerals throughout the specification refer to the same component. Reference numerals for the same components will be omitted in the individual drawings.

1 shows a perspective view of a filtering device according to one embodiment of the disclosure disclosed herein. FIG. 2 shows a perspective view showing an example of another state of the filtering device of FIG. 1.

As shown in FIGS. 1 and 2, the filtering device 100 includes a frame 200, a chamber part 300, a stirring part 400, a weight part 500, a control part 600, and a lifting part 700. And a pressurized pump 800.

The filtering device 100 is a device used to perform filtration and washing in the process of manufacturing the electrode catalyst of the fuel cell, and automatically performs the necessary filtration and washing process after the synthesis process, which is an automated process of the electrode catalyst. It is prepared automatically.

The frame 200 has lower driving wheels that are movable and fixed to each other, and the stirring unit 400 and the chamber unit 300 coupled to the frame 200 through a combination of bar-shaped assembly units that can be assembled or disassembled with each other. And the lifting unit 700.

The chamber part 300 is formed in a cylindrical shape in which the upper and lower portions of the inner space are open, and is made of a polymer, ceramic, metal, or composite material resistant to corrosion and high pressure, and both sides of the chamber part 300 are frame 200. ) And a sliding movement toward the top or the bottom.

The stirring unit 400 includes a cover 410, a sealing unit 420, and a stirrer 430.

The stirring unit 400 is coupled to the upper and lower portions of the frame 200 so as to be slidably moved, and is formed to be detachable or attached to the upper portion of the chamber 300, and the chamber is coupled with the chamber 300. The upper part of the part 300 is sealed.

Specifically, the cover 410 is formed in the shape of a circular plate, the corrosion resistance and high pressure for durability against pressure and chemical reactions occurring in the interior space of the chamber 300 during the driving of the filtering device 100 Made of strong material.

One end of the sealing unit 420 is formed at the edge of the cover 410 in a form surrounding the edge of the cover 410, the other end is extended toward the lower, the stirring unit 400 is coupled to the chamber portion 300 It surrounds the inner side and the outer side of the upper edge of the chamber portion 300 in the state.

The sealing unit 420 is in close contact with the chamber 300 through a plurality of packings in a state coupled with the chamber 300, the catalyst solution or solutes contained in the interior space of the chamber 300 is the chamber 300 Efficiently prevents spills to the outside.

One end of the stirrer 430 is coupled to the frame 200 at the top of the cover 410 to be slidably moved upward or downward, and the other end penetrates the cover 410 and extends toward the bottom to form the chamber part 300. Is placed inside.

A plurality of impellers are attached to the other end of the agitator 430 to prevent the precipitates of the catalyst solution injected into the chamber 300 from sinking while the impellers are rotated through the control of the controller 600.

In addition, the inner space of the impeller is connected to the pump formed on the outside, the outer surface is formed with a plurality of holes connecting the inner space and the outer space of the impeller, the cleaning solution sprayed through the holes chamber portion 300 ) Can be cleaned inside.

The weight part 500 is coupled to the chamber part 300 to be detachable or attached from the lower part of the chamber part 300 to cover the lower part of the chamber part 300, and the catalyst injected into the chamber part 300. The weight of the solution and the electrocatalyst produced is sensed.

In detail, the weight part 500 includes a support container 520 and a filter 530.

The support container 520 has a hollow formed at the center thereof, and an inclined surface extending downwardly inclined toward the hollow at the edge thereof is formed, and the edge thereof is coupled to the lower edge of the chamber 300 to be detachable or attachable.

The filter 530 is disposed inside the support container 520 and filters the catalyst solution injected into the chamber 300 in a state where the chamber 300 and the weight 500 are coupled to each other to filter the electrode catalyst. Filter it out.

The catalyst solution passing through the filter 530 is discharged to the outside through the support vessel 520, and the electrocatalysts filtered by the filter 530 are separated from the filter 530 by driving the stirrer 430 to filter 530. Blocking of the fine holes formed in) is prevented.

The control unit 600 is connected to the stirring unit 400, the weight unit 500 and the lifting unit 700 to drive the stirrer 430, and the weight of the catalyst solution or the electrode catalyst injected into the chamber 300 Sensing and controlling the lifting unit 700 may separate the weight unit 500 from the chamber unit 300.

In addition, the control unit 600 detects in real time the weight of the catalyst solution or the electrode catalyst injected into the chamber 300 detected by the weight unit 500 in real time to detect the predetermined weight or more in the filter 530 the electrode catalyst Mark the time of separation.

Therefore, by lowering the weight part 500 through the display of the controller 600, the electrode catalyst filtered by the filter 530 may be separated from the filter 530 at a suitable time, and the filter 530 may be easily replaced. There is this.

Lift unit 700 is one end is coupled to the lower portion of the frame 200, the other end is extended toward the upper portion is coupled with the weight portion 500, the lower portion by weight 500 through the drive chamber portion 300 Separation or by raising the weight portion 500 may be coupled to the chamber portion 300 and the weight portion 500.

The pressure pump 800 is disposed on one side of the frame 200 and connected to the stirring unit 400, and passes nitrogen through the hose or pipe connected to the inside of the chamber unit 300 through the cover 410 to a high pressure. The catalyst solution injected by the injection is pressed to pass through the filter 530.

Accordingly, the catalyst solution injected into the chamber 300 moves downward by the pressure of the pressure pump 800, passes through the filter 530, generates an electrode catalyst, and the electrode catalyst left in the filter 530 is agitated. Maintaining a state separated from the filter 530 through the (430) has the advantage that the filtration rate is faster than the existing technology.

3 is an exploded perspective view illustrating a weight part by disassembling the filtering device of FIG. 1. 4 illustrates a cross-sectional view taken along line II ′ of FIG. 1.

As shown in FIGS. 3 and 4, the weight part 500 includes a support container 520, load cells 540, and an outlet 550.

The support plate 510 is formed in a ring shape in which both sides are coupled to the lifting unit 700 and a hollow is formed at the center thereof, and the load cells 540 are disposed on the upper surface of the support plate 510 so as to be spaced apart from each other along the edge of the support plate 510.

 The load cells 540 are disposed between the support plate 510 and the bottom surface of the support container 520, and the support container 520 and the chamber part 300 are coupled to each other so that the chamber part 300 and the stirring part 400 are upper part. The weight of the catalyst solution and the electrocatalyst injected into the chamber 300 is measured while sliding toward the predetermined distance toward.

The weight part 500 moving upward through the elevating part 700 moves the chamber part 300 and the stirring part 400 by a predetermined distance toward the upper part, and thus the chamber part 300 and the stirring part 400. The load is directed toward the weight part 500, the load cells 540 disposed under the weight part 500 may detect a change in weight of the chamber part 300.

The outlet 550 is connected to the hollow formed in the center of the support container 520 to discharge the catalyst solution discharged through the filter 530 in the chamber 300 to the outside through a connected pipe or hose.

The lifting unit 700 includes a lift frame 720, a lift 740, and a guide 760.

One end of each of the lift frames 720 is coupled to the lower portion of the frame 200 with the chamber part 300 interposed therebetween, and the other end thereof extends upward, and an insertion space having a hexahedron shape is formed therein.

Each of the lifts 740 is an electric or hydraulic lift, and one end of the lift 740 is inserted into an insertion space of the lift frame 720 to be coupled to the lift frame 720, and a plurality of protrusions are formed on the outer side of the other end. do.

The other end of the lift 740 is coupled to the side of the support plate 510, and attaches or detaches the weight part 500 and the chamber part 300 to each other by raising or lowering the support plate 510 through an upward or downward drive.

The guide 760 is formed in a shape surrounding the other end of the lift 740 to guide the lifting or lowering movement of the lift 740 to induce stable coupling of the weight part 500 and the chamber part 300.

One end of each of the guides 760 is coupled to the other end of the lift frame 720, the other end thereof extends upward, and the other end of the lift 740 extends along the moving direction on one side adjacent to the weight part 500. A guide groove connecting the inner space and the outer space of 760 is formed.

In addition, grooves for guiding the vertical movement of the guide 760 are formed in the internal space of the guide 760 so that a plurality of protrusions formed at the other end of the lift 740 are inserted to guide the vertical movement of the lift 740.

As shown in FIG. 4, the stirring unit 400 further includes nozzles 450.

The nozzles 450 are disposed to be spaced apart from each other at predetermined intervals on the bottom surface of the cover 410 and are coupled to the cover 410, and are connected to an external pump through the cover 410 and controlled by the controller 600. Water or washing liquid is sprayed toward the inside of the chamber 300.

The sealing unit 420 includes a slot 422, a first packing 423, an auxiliary slot 424, and a second packing 425, and the slot 422 includes an inner wall 426 and an outer wall 427. do.

One end of the sealing unit 420 is formed at the edge of the cover 410 in a form surrounding the edge of the cover 410, the other end is extended toward the lower portion and the stirring unit 400 and the chamber unit 300 are coupled to each other In combination with the chamber 300 in a form surrounding the upper edge of the chamber 300.

The sealing unit 420 is in close contact with the chamber 300 through a plurality of packings in the state coupled with the chamber 300, the catalyst solution flowing into the interior space of the chamber 300 is external by high pressure nitrogen gas To prevent leakage.

In detail, the slot 422 extends along the edge of the cover 410 at the lower edge of the cover 410 and is formed in a ring shape, and the inner space is formed to open toward the lower side to form an upper end of the chamber part 300. Surround.

The slot 422 includes an inner wall 426 in close contact with the inner surface of the chamber part 300, and an outer wall 427 in close contact with the outer surface of the chamber part 300, and includes an inner wall 426 and an outer wall 427. The first packing 423 is formed therebetween, and the upper edge of the chamber part 300 is in close contact with the first packing 423 while a part of the upper end of the chamber part 300 is inserted into the slot 422.

Inside the first packing 423, two packing spaces extending along the extension direction of the first packing 423 in a ring shape are formed at the bottom of the first packing 423, and one packing space at the top of the inside. Is formed.

The packing spaces are contracted when the upper end of the chamber part 300 presses the bottom of the first packing 423, and the first packing 423 extends to both sides and is sealed in close contact with the inner wall 426 and the outer wall 427. Strengthen the sealing force of the unit 420.

 The auxiliary slot 424 is coupled to the chamber 300 in a form surrounding the edge outer surface of the chamber 300, the inner space is formed to open toward the top, corresponding to the outer surface of the slot 422 The outer wall 427 is formed to have a shape.

The second packing 425 is in close contact with the bottom surface of the auxiliary slot 424 in the inside of the auxiliary slot 424, the other end is extended and extended by a predetermined distance toward the top, the other end is recessed toward one end Part is formed.

Inside the second packing 425, two packing spaces extending along the extension direction of the second packing 425 in a ring shape are formed in the second packing 425, and one packing space is formed at the bottom thereof. do.

Therefore, each of the first and second packings 423 and 425 is contracted and closely adhered to each of the slots 422 and the auxiliary slots 424 in a state where the chamber part 300 and the stirring part 400 are coupled to each other. As the area is increased, the sealing force of the inner space of the chamber part 300 is improved.

Meanwhile, separate protrusions may be formed in a ring shape on the outer surfaces of the outer wall 427 and the auxiliary slot 424 to reinforce the coupling force between the sealing unit 420 and the chamber part 300 through bolts.

The weight part 500 further includes a sealing unit 560.

The sealing unit 560 includes a slot 522, a third packing 523, an auxiliary slot 524, and a fourth packing 525, and the slot 522 includes an inner wall 526 and an outer wall 527. do.

One end of the sealing unit 520 is formed at the edge of the support container 520 in a form surrounding the upper edge of the support container 520, the other end is extended toward the upper in the state coupled to the chamber unit 300 It is coupled to the chamber 300 in a form surrounding the lower edge of the chamber 300.

The sealing unit 520 is in close contact with the chamber 300 through a plurality of packings in the state coupled with the chamber 300, the catalyst solution flowing into the inner space of the chamber 300 is external by high pressure nitrogen gas To prevent leakage.

Specifically, the slot 522 extends along the edge of the chamber 300 under the edge of the chamber 300, and is formed in a ring shape, and the inner space is formed to open toward the upper side of the chamber 300. Surround the bottom.

The slot 522 includes an inner wall 526 that is in close contact with the inner surface of the chamber part 300, and an outer wall 527 that is in close contact with the outer surface of the chamber part 300, and includes an inner wall 526 and an outer wall 527. A third packing 523 is formed therebetween so that the lower edge of the chamber part 300 is in close contact with the third packing 523 while a portion of the lower end of the chamber part 300 is inserted into the slot 522.

Inside the third packing 523, two packing spaces extending along the extension direction of the third packing 523 in a ring shape are formed at an upper end of the third packing 523, and one packing space at a lower end of the third packing 523. Is formed.

The packing spaces in the third packing 523 contract when the lower end of the chamber part 300 presses the upper surface of the third packing 523, and the third packing 523 extends to both sides and the inner wall 526. In close contact with the outer wall 527, the sealing force of the sealing unit 520 is strengthened.

 The auxiliary slot 524 is coupled to the chamber 300 in a form surrounding the edge outer surface of the chamber 300, the inner space is formed to open toward the bottom, corresponding to the outer surface of the slot 522 The outer wall 527 is formed to surround the outer wall 527.

The fourth packing 525 is in close contact with the inner surface of the auxiliary slot 524 in the inside of the auxiliary slot 524, the other end is extended and extended by a predetermined distance toward the bottom, and the other end is recessed toward one end Part is formed.

Inside the fourth packing 525, two packing spaces extending along the extension direction of the fourth packing 525 in a ring shape are formed in the fourth packing 525, and one packing space is formed thereon. do.

Therefore, in the state where the chamber part 300 and the weight part 500 are coupled to each other, each of the third and fourth packings 523 and 525 contracts and closely contacts each of the slots 522 and the auxiliary slots 524. As the area is increased, the sealing force of the inner space of the chamber part 300 is improved.

On the other hand, the outer surface of the outer wall 527 and the auxiliary slot 524 is formed in the form of separate protrusions are coupled to each other through a bolt to strengthen the coupling force between the sealing unit 520 and the chamber 300 as a clamp form. Can be.

The filter 530 is disposed inside the chamber 300 in a state where the bottom edge is in close contact with the upper end of the inner wall 526 while the chamber 300 and the weight 500 are coupled to each other, and the high pressure nitrogen gas The inner wall 526 supports the filter 530 to move downward in the state in which the catalyst solution is pressed downward.

FIG. 5 is an exploded perspective view illustrating the stirring part of the filtering device of FIG. 1. FIG. 6 shows cross-sectional views illustrating driving of the filtering device of FIG. 1.

As shown in FIGS. 5 and 6, the stirrer 430 includes a motor 431, a gearbox 432, a rotation shaft 433, and an impeller 434.

The motor 431 is disposed above the cover 410 and coupled to the upper end of the frame 200, and the driving shaft of the motor 431 extends downward to be coupled with one of the gears of the gearbox 432.

One end of the rotation shaft 433 is coupled to the gear meshing with the gear coupled to the drive shaft, and the other end penetrates the cover 410 and extends downward to engage with the impellers 434.

The rotating shaft 433 is formed in a cylindrical shape extending to the upper and lower parts in which a space is formed therein, and supplies water or a washing liquid toward the impeller 434 in a state of being connected to an external pump to rotate or stop.

One end of each of the impellers 434 is coupled to the rotating shaft 433, the other end extends toward the inner surface of the chamber portion 300, and the type is Axial propeller, Pitch propeller, Propeller with stabilizer ring, Dipersed turbine, Curved turbine Anchor paddle, Pitched paddle, Flat turbine, Pitched turbine, Open pitched paddle, Spiral ribbon or V-type flat paddle can be used.

Referring to (a), the inner space of the impeller 434 is formed so that the space connected to the inner space of the rotating shaft 433 extends toward the other end of the impeller 434, the water or washing liquid is moved to the other end of the impeller 434 do.

The other end of the impeller 434 is provided with a hole or a nozzle connecting the inner space of the impeller 434 and the inner space of the chamber 300 toward the inner surface of the chamber 300 so that the impeller 434 rotates or In the stopped state, water or washing liquid may be sprayed toward the chamber part 300.

Referring to (b), the filtering device 100 uses a stirrer 435 composed of a magnetic drive stirrer to prevent leakage of nitrogen or a catalyst solution to the outside when high pressure nitrogen is injected into the chamber 300. do.

In addition, the stirrer 435 is formed to be connected to the cover 410 of the stirrer 400, the actuator is formed on the upper side, the drive shaft is extended toward the lower side and connected to the impeller in the chamber 300, the high temperature Stirring stably inside the high pressure chamber 300.

As shown in FIG. 6, when the weight part 500 descends through the lifting part 700 in a state coupled with the chamber part 300, the chamber part 300 and the stirring part 400 are connected to the frame 200. The position is maintained in a coupled state, and the filter 530 inside the weight part 500 is exposed to the outside.

On the contrary, when the weight part 500 is raised by the driving of the lifting part 700, the weight part 500 and the chamber part 300 are coupled to each other, and the chamber part 300 and the stirring part ( 400 is slidingly moved upward by a predetermined distance in a state coupled with the frame 200.

The weight part 500 is coupled to the chamber part 300 while the upper part of the chamber part 300 and the stirring part 400 is applied to the load cells 540 to the load of the chamber part 300 and the stirring part 400. Toward a predetermined distance.

Therefore, when the catalyst solution is injected into the chamber part 300 or the electrode catalyst is filtered through the filter 530, the load cells 540 detect a change in weight, and when the amount of the electrode catalyst is increased to detect a predetermined weight or more, the control unit Through 600, it is indicated that it is time to separate the electrode catalyst from the filter 530.

In addition, when the clamp for firmly coupling the chamber portion 300 and the support vessel 520 between the chamber portion 300 and the weight portion 500 is not fixed, the lifting portion 700 automatically lifts the weight portion. Lower 500.

FIG. 7 is a flowchart illustrating an electrode catalyst filtration method using the automation apparatus of FIG. 1.

As shown in FIG. 7, the electrocatalyst filtration method is a method of separating and washing a catalyst solution, which has completed a platinum reduction reaction, in a manufacturing process for mass production of an electrocatalyst for a fuel cell with a solid electrocatalyst and a solvent.

In the state in which the stirring part 400, the chamber part 300, and the weight part 500 are coupled to each other, the catalyst solution is injected into the chamber part 300 (S110: first step).

When the catalyst solution is injected into the chamber 300, the impeller 434 rotates inside the chamber 300 through the driving of the motor 431 to stir the catalyst solution (S120: second step).

The catalyst solution is filtered by moving the catalyst solution inside the chamber 300 toward the filter 530 through nitrogen supplied from the pressure pump 800 while the catalyst solution is stirred inside the chamber 300. (S130: third step).

Detects the weight of the catalyst solution flowing into the chamber 300 through the load cells 540 of the weight part 500 and the electrode catalyst filtered through the filter 530, and if an increase in weight is detected by more than a predetermined amount, The injection is stopped and the electrocatalyst and the container are washed through the nozzles formed in the nozzles 450 and the impellers 434 (S140: fourth step).

After the first washing of the electrode catalyst, the catalyst solution is injected into the chamber part 300, the catalyst solution is stirred through the impeller 434, and the filtration process is performed to pressurize and move the catalyst solution toward the filter 530. ) Remove the washing water inside, and repeat the filtration process and washing alternately (S140: fourth step).

After repeating the filtration process and washing, the weight part 500 is slowly lowered through the lifting part 700 to expose the filter 530 to the outside and scrap the electrode catalyst left in the filter 530 (S150: fifth). step).

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the embodiments described herein and the configurations shown in the drawings are merely exemplary embodiments of the present invention, and represent all of the technical ideas of the present invention. It is to be understood that there may be various equivalents and variations in place of them at the time of the present application. Therefore, the exemplary embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from an equivalent concept should be construed as being included in the scope of the present invention.

100: filtering device 200: frame
300: chamber 400: stirring
500: weight part 600: control part
700: elevation 800: pressure pump

Claims (6)

frame;
A chamber part formed in an open shape in the upper and lower parts thereof;
A stirring unit coupled to the frame, coupled to the chamber unit at a top of the chamber unit, to be detachable or attached to the chamber unit, and having nozzles formed at a bottom thereof;
A weight part coupled to the chamber part so as to be detachable or attachable from a lower part of the chamber part, the weight part including a filter, a support container accommodating the filter, and load cells;
A control unit for controlling the stirring unit and the chamber unit; And
And a frame coupled to the stirring unit to support the stirring unit.
The stirring unit includes a cover and a stirrer coupled to the chamber unit to be detachable,
The stirrer is disposed on the upper portion of the cover, the motor coupled to the upper end of the frame, the gear box gear connected to the drive shaft of the motor, one end is coupled to the gear box and the other end is extended in the cylindrical shape of the outside extending long A rotating shaft connected to the washing pump and extending downward and penetrating the cover is coupled to the rotating shaft to form a space connected to the inner space of the rotating shaft, and the other end is formed with a hole or nozzle connected to the space. Includes an impeller,
The control unit is disposed under the support container detects the weight change of the support container through the load cells connected to the frame, and analyzes and displays the degree of filtration of the composite through the weight change of the support container Filtering device.
The method of claim 1, wherein the chamber portion,
And a pressurized pump connected to the inside of the chamber through the stirring unit to supply gas to the inside of the chamber to increase or decrease the pressure inside the chamber.
The method of claim 1,
And a lifter coupled to a support plate coupled to the load cells under the load cells, the lifter being configured to lower or raise the support plate.
The method of claim 3, wherein the lifting unit,
One end coupled to the frame and the other end extended upward to engage the support plate;
A lift frame surrounding one end of the lift and coupled to the frame;
And a guide formed to surround the other end of the lift to guide the vertical movement of the lift.
delete Chamber portion; Stirring combined with a stirrer including a cover for covering the upper portion of the chamber portion and a rotating shaft connected to the motor outside the cover in a cylindrical shape extending in the upper and lower portions and connected to an impeller disposed through the cover and inside the chamber portion. part; And a weight part coupled to be detachable or attachable to a lower portion of the chamber part.
A first step of injecting a catalyst solution into the inner space through the agitator while the chamber part, the stirring part, and the weight part are coupled to each other so that the inner space of the chamber part is sealed;
One end is coupled to the rotary shaft connected to the external washing pump to form a space connected to the inner space of the rotary shaft therein, and the other end rotates the impeller to form a hole or nozzle connected to the space to the catalyst solution A second step of stirring;
A third step of increasing the pressure of the internal space through a high pressure pump connected to the stirring part to filter the catalyst solution through a filter disposed inside the weight part;
Detecting a weight change of the catalyst solution and the electrode catalyst left in the filter through the load cells formed in the weight part to stop filtration and to wash the inside of the chamber part through the holes or nozzles; And
And a fifth step of separating the weight part from the chamber part to lower the scrap and scraping the electrode catalyst left in the filter.

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