Automatic catalyst preparation device

Abstract

The utility model belongs to the technical field of catalyst preparation devices, and particularly relates to an automatic catalyst preparation device which comprises a base, a bracket, a lifting mechanism, a stirring motor, an adapter shaft, a dispersion impeller, a slurry barrel and an ultrasonic dispersion pool assembly, the bracket and the ultrasonic dispersion pool assembly are respectively arranged on the base, and the slurry barrel is arranged in the ultrasonic dispersion pool assembly; the lifting mechanism is used for driving the stirring motor to lift, the upper end of the coupling shaft is connected with the driving end of the stirring motor, and the dispersing impeller is mounted at the lower end of the coupling shaft. The device can synchronously realize the actions of ultrasonic dispersion, automatic lifting of the dispersion impeller and high-speed stirring, can improve the mixing uniformity of a catalyst and an ionic solution in the preparation process, avoids the phenomenon of catalyst precipitation, helps research and production personnel to improve the uniformity of catalyst preparation, and improves the production efficiency. Synchronization and automation of the catalyst preparation process are achieved, product performance is effectively guaranteed, and the device is compact in overall structure, stable and reliable in operation and convenient and easy to disassemble, assemble and maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of catalyst preparation devices, in particular to an automatic catalyst preparation device. Background Art

[0002] The core component of the PEM electrolyzer, the membrane electrode, is composed of a proton membrane and a catalyst. It is the key part of the electrolyzer performance. The content and uniformity of the catalyst attached to the proton membrane directly affect the hydrogen production efficiency of the electrolyzer. Therefore, the catalyst preparation device is particularly important.

[0003] At present, the preparation of membrane electrode catalysts generally needs to be completed in a constant temperature environment through ultrasonic dispersion, high-speed stirring and other steps, but there is currently no preparation device that can simultaneously achieve ultrasonic dispersion, high-speed stirring, and automatic lifting of the dispersion impeller. In the catalyst preparation process, it is easy for the catalyst and the ion solution to not be fully and evenly fused and precipitation to occur, which ultimately leads to the catalyst being unable to be uniformly coated on the proton membrane during the spraying process, affecting product performance. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a catalyst automatic preparation device.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A catalyst automatic preparation device, comprising a base, a bracket, a lifting mechanism, a stirring motor, a transfer shaft, a dispersing impeller, a slurry cylinder and an ultrasonic dispersing tank assembly;

[0007] The bracket and the ultrasonic dispersion tank assembly are respectively arranged on the base, and the slurry cylinder is arranged in the ultrasonic dispersion tank assembly;

[0008] The lifting mechanism is arranged on the bracket and is used to drive the stirring motor to lift and lower. The upper end of the adapter shaft is connected to the driving end of the stirring motor, and the dispersing impeller is installed at the lower end of the adapter shaft.

[0009] The lifting mechanism drives the stirring motor to move up and down, thereby allowing the dispersing impeller to extend into the slurry barrel or allowing the dispersing impeller to escape from the slurry barrel.

[0010] The lifting mechanism comprises a lifting mechanism mounting base plate, a lifting motor, a screw, and a stirring motor mounting seat. The lifting mechanism mounting base plate is mounted on the bracket, the housing of the lifting motor and the screw are respectively mounted on the lifting mechanism mounting base plate, the driving end of the lifting motor is connected to the screw, the stirring motor mounting seat is provided with a screw nut connected to the screw by a thread, and the housing of the stirring motor is mounted on the stirring motor mounting seat;

[0011] The axial center line of the adapter shaft and the axial center line of the screw rod are both perpendicular to the horizontal plane.

[0012] A linear guide rail is also installed on the bottom plate of the lifting mechanism, and a sliding block slidably connected to the linear guide rail is provided on the stirring motor mounting seat. The length direction of the linear guide rail is parallel to the axial center line of the screw rod.

[0013] The ultrasonic dispersion pool assembly includes an ultrasonic dispersion pool body, an ultrasonic dispersion pool shell and an ultrasonic vibrator. The ultrasonic dispersion pool shell is installed on the base, and the ultrasonic dispersion pool body is installed in the ultrasonic dispersion pool shell. A plurality of ultrasonic vibrators are installed on the outer bottom surface of the ultrasonic dispersion pool body, and each of the ultrasonic vibrators is located on the inner side of the ultrasonic dispersion pool shell. The slurry cylinder is placed in the ultrasonic dispersion pool body.

[0014] A temperature probe is arranged in the ultrasonic dispersion tank body.

[0015] A plurality of slurry barrel positioning structures are arranged on the inner wall of the ultrasonic dispersion tank body.

[0016] Each group of the slurry barrel positioning structure includes a bearing mounting seat, an adjusting nut, a stud and a clamp. The bearing mounting seat of each group of the slurry barrel positioning structure is installed on the inner wall of the ultrasonic dispersion pool body. A rotating bearing is provided on the bearing mounting seat of each group of the slurry barrel positioning structure. One end of the clamp of each group of the slurry barrel positioning structure forms a clamping portion for clamping the outer wall of the slurry barrel. The other end of the clamp of each group of the slurry barrel positioning structure is connected to one end of the stud of the same group of the slurry barrel positioning structure. The adjusting nut of each group of the slurry barrel positioning structure is divided into a rotating shaft portion and a threaded sleeve portion connected together. The rotating shaft portion of the adjusting nut of each group of the slurry barrel positioning structure is rotatably connected to the rotating bearing on the bearing mounting seat of the same group of the slurry barrel positioning structure. A threaded hole for threaded connection with the other end of the stud of the same group of the slurry barrel positioning structure is provided in the threaded sleeve portion of the adjusting nut of each group of the slurry barrel positioning structure.

[0017] The shape of the inner side surface of the clamping portion of the clamp of each group of the slurry barrel positioning structure matches the shape of the outer peripheral surface of the slurry barrel.

[0018] The outer bottom surface of the slurry cylinder is evenly provided with heat dissipation fins along the circumferential direction.

[0019] Each of the heat dissipation fins is wave-shaped.

[0020] The advantages and positive effects of the utility model are:

[0021] The utility model can synchronously realize ultrasonic dispersion, automatic lifting and lowering of the dispersing impeller and high-speed stirring, can improve the uniformity of mixing the catalyst with the ion solution during the preparation process, put an end to the phenomenon of catalyst precipitation, help research and production personnel to improve the uniformity of catalyst preparation, realize the synchronization and automation of the catalyst preparation process, effectively guarantee product performance, the overall structure of the device is compact, the operation is stable and reliable, and the disassembly and assembly are convenient and easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the top view of the slurry barrel positioning structure of the utility model;

[0024] Figure 3 It is a side structural schematic diagram of the slurry barrel positioning structure of the utility model;

[0025] Figure 4 It is a schematic diagram of the connection structure between the adjusting nut and the stud of the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the slurry cylinder of the utility model when viewed from above.

[0027] In the figure: 1 is a base, 2 is a bracket, 3 is a stirring motor, 4 is a transfer shaft, 5 is a dispersing impeller, 6 is a slurry cylinder, 7 is a lifting mechanism mounting base, 8 is a lifting motor, 9 is a screw, 10 is a stirring motor mounting seat, 11 is a linear guide, 12 is a slider, 13 is an ultrasonic dispersion tank body, 14 is an ultrasonic dispersion tank shell, 15 is an ultrasonic vibrator, 16 is a bearing mounting seat, 17 is an adjusting nut, 1701 is a rotating shaft part, 1702 is a threaded sleeve part, 18 is a stud, 19 is a clamp, 20 is a heat dissipation fin, 21 is a lifting motor mounting frame, 22 is a screw mounting frame, and 23 is a coupling. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-5 The utility model is further described in detail.

[0029] A catalyst automatic preparation device, such as Figure 1-5 As shown, this embodiment includes a base 1, a bracket 2, a lifting mechanism, a stirring motor 3, a switching shaft 4, a dispersing impeller 5, a slurry cylinder 6 and an ultrasonic dispersing tank assembly.

[0030] The bracket 2 and the ultrasonic dispersion tank assembly are respectively arranged on the base 1, and the slurry barrel 6 is arranged in the ultrasonic dispersion tank assembly. The bracket 2 can be installed on the base 1 by screws. In this embodiment, the slurry barrel 6 is made of stainless steel material, which is used to directly contain slurries such as catalysts and ion solutions, and can effectively prevent corrosion of the slurry.

[0031] The lifting mechanism is arranged on the bracket 2 and is used to drive the stirring motor 3 to lift and lower. The upper end of the adapter shaft 4 is connected to the driving end of the stirring motor 3, and the dispersing impeller 5 is installed at the lower end of the adapter shaft 4. In this embodiment, the stirring motor 3 adopts a commercially available product with a rotation speed of 6000-30000r / min, and the action is controlled by an external controller, so that high-speed dispersing and stirring can be achieved. In this embodiment, the dispersing impeller 5 adopts the stainless steel dispersing impeller with upper and lower teeth of the prior art, which can effectively ensure the slurry dispersion effect; the connection method between the dispersing impeller 5, the adapter shaft 4 and the stirring motor 3 adopts the prior art. The distance between the outer peripheral surface of the dispersing impeller 5 and the inner peripheral wall of the slurry barrel 6 is made close enough, for example, between 20-0.5mm, which can effectively eliminate the influence of the static liquid layer adjacent to the inner peripheral wall of the slurry barrel 6 on the stirring efficiency during the stirring process, and the high-speed shear between the inner peripheral wall of the slurry barrel 6 and the dispersing impeller 5 is used to improve the stirring efficiency. The lifting mechanism drives the stirring motor 3 to move up and down, thereby allowing the dispersing impeller 5 to extend into the slurry barrel 6 or allowing the dispersing impeller 5 to escape from the slurry barrel 6 .

[0032] Specifically, the lifting mechanism in this embodiment includes a lifting mechanism mounting base plate 7, a lifting motor 8, a screw 9, and a stirring motor mounting seat 10. The lifting mechanism mounting base plate 7 is mounted on the bracket 2 by screws, and the housing and screw 9 of the lifting motor 8 are respectively mounted on the lifting mechanism mounting base plate 7. The driving end of the lifting motor 8 is connected to the screw 9 by a coupling 23. The stirring motor mounting seat 10 is provided with a screw nut connected to the screw 9 by a thread, and the housing of the stirring motor 3 is mounted on the stirring motor mounting seat 10 by screws. In this embodiment, the axial center line of the adapter shaft 4 and the axial center line of the screw 9 are both perpendicular to the horizontal plane to ensure that the dispersion impeller 5 is lifted and lowered vertically. In this embodiment, the lifting motor 8 is a commercially available product, and its action is controlled by an external controller. In this embodiment, the housing of the lifting motor 8 and the mounting structure between the screw rod 9 and the lifting mechanism mounting base plate 7 all adopt the existing technology, wherein the housing of the lifting motor 8 is installed on the lifting mechanism mounting base plate 7 through the lifting motor mounting frame 21, and two screw rod mounting frames 22 are installed on the lifting mechanism mounting base plate 7. The screw rod 9 rotates on the two screw rod mounting frames 22, and the lifting motor 8 is located above the screw rod 9.

[0033] Specifically, in this embodiment, a linear guide 11 is also installed on the lifting mechanism mounting base 7, and a slider 12 is provided on the stirring motor mounting seat 10, which is slidably connected to the linear guide 11, and the length direction of the linear guide 11 is parallel to the axial center line of the screw rod 9. Through the arrangement of the linear guide 11 and the slider 12, the stirring motor mounting seat 10 can be stably and accurately lifted up and down.

[0034] Specifically, the ultrasonic dispersion pool assembly in this embodiment includes an ultrasonic dispersion pool body 13, an ultrasonic dispersion pool shell 14 and an ultrasonic vibration head 15. The ultrasonic dispersion pool shell 14 is installed on the base 1, and the ultrasonic dispersion pool body 13 is installed in the ultrasonic dispersion pool shell 14. Two ultrasonic vibration heads 15 are evenly installed on the outer bottom surface of the ultrasonic dispersion pool body 13, and each ultrasonic vibration head 15 is located on the inner side of the ultrasonic dispersion pool shell 14. The slurry cylinder 6 is placed in the ultrasonic dispersion pool body 13. In this embodiment, the ultrasonic vibration heads 15 are all commercially available products, and the action is controlled by an external controller; the installation and setting method between the ultrasonic vibration head 15, the ultrasonic dispersion pool body 13 and the ultrasonic dispersion pool shell 14 adopts the existing technology.

[0035] Specifically, in this embodiment, a temperature probe is provided in the ultrasonic dispersion tank body 13, which is used to detect the temperature of the ice-water mixture used for the water bath in the ultrasonic dispersion tank body 13 and outside the slurry tube 6. In this embodiment, the temperature probe adopts a commercially available product, and the setting method adopts the existing technology, and is connected to the external controller; when the temperature probe detects that the temperature of the liquid used for the water bath is higher than the preset temperature, a signal is sent to the external controller, thereby reminding the staff to manually add ice to the liquid used for the water bath to cool it down.

[0036] Specifically, in this embodiment, two groups of symmetrically arranged slurry barrel positioning structures are provided on the inner wall of the ultrasonic dispersion pool body 13, and each group of slurry barrel positioning structures includes a bearing mounting seat 16, an adjusting nut member 17, a stud 18 and a clamp 19. The bearing mounting seat 16 of each group of slurry barrel positioning structures is installed on the inner wall of the ultrasonic dispersion pool body 13, and a rotating bearing is provided on the bearing mounting seat 16 of each group of slurry barrel positioning structures. One end of the clamp 19 of each group of slurry barrel positioning structures forms a clamping portion for clamping the outer wall of the slurry barrel 6, and the clamp 19 of each group of slurry barrel positioning structures is provided. The other end of the hoop 19 is connected to one end of the stud 18 of the same group of slurry barrel positioning structure. The adjusting nut member 17 of each group of slurry barrel positioning structure is divided into a rotating shaft portion 1701 and a threaded sleeve portion 1702 connected together. The rotating shaft portion 1701 of the adjusting nut member 17 of each group of slurry barrel positioning structure is rotatably connected to the rotating bearing on the bearing mounting seat 16 of the same group of slurry barrel positioning structure. The threaded sleeve portion 1702 of the adjusting nut member 17 of each group of slurry barrel positioning structure is provided with a threaded hole for threading with the other end of the stud 18 of the same group of slurry barrel positioning structure. The adjusting nut member 17 of each group of slurry barrel positioning structure can rotate relatively around the bearing mounting seat 16 of the same group of slurry barrel positioning structure. In this embodiment, the outer peripheral surface of the slurry barrel 6 is cylindrical, and the inner side surface shape of the clamping portion of the clamp 19 of each group of slurry barrel positioning structure is in line with the shape of the outer peripheral surface of the slurry barrel 6 and is in the shape of an arc surface, which can stably and accurately position the slurry barrel 6. When the slurry barrel 6 is placed in the ultrasonic dispersion tank body 13 and the slurry barrel 6 is clamped and fixed, the slurry barrel 6 is first placed between the clamps 19 of each group of slurry barrel positioning structures and is roughly clamped, and the threaded sleeves 1702 of each adjusting nut member 17 are rotated to rotate the stud 18 out, so that each clamp 19 can be close to the slurry barrel 6 and clamp the slurry barrel 6; when the slurry barrel 6 needs to be taken out, the threaded sleeves 1702 of each adjusting nut member 17 are rotated in the opposite direction to make each clamp 19 retreat and loosen the slurry barrel 6. In this embodiment, the shaft portion 1701 and the threaded sleeve portion 1702 of each adjusting nut member 17 are both integral structures; the shaft portion 1701 is cylindrical; the outer peripheral surface of the threaded sleeve portion 1702 is in the shape of a hexagonal prism, which is convenient for rotation with a wrench.

[0037] Specifically, if Figure 5 As shown, in this embodiment, the outer bottom surface of the slurry barrel 6 is evenly provided with heat dissipation fins 20 along the circumferential direction, and the thickness of the heat dissipation fins 20 is 1 cm, so that the bottom surface of the slurry barrel 6 is not in direct contact with the inner bottom surface of the ultrasonic dispersion tank body 13 and has a gap, so that the water bath liquid can flow into the gap and improve the heat exchange with the liquid at the bottom of the slurry barrel 6, effectively accelerating and evenly dissipating the heat of the liquid at the bottom of the slurry barrel 6. In this embodiment, the heat dissipation fins 20 can be connected to the outer bottom surface of the slurry barrel 6 by welding. Each heat dissipation fin 20 is wavy, which can form turbulence in the water bath liquid on the outer bottom surface of the slurry barrel 6, further increasing the rate of heat removal.

[0038] Working principle:

[0039] When in use, the slurry cylinder 6 containing slurry such as catalyst and ion solution is placed in the ultrasonic dispersion tank body 13, and an ice-water mixture for a water bath is placed in the ultrasonic dispersion tank body 13 to cool the slurry cylinder 6 and the slurry inside during the preparation process; the lifting motor 8 is controlled to operate, so that the dispersion impeller 5 can be extended into the slurry cylinder 6 or the dispersion impeller 5 can be removed from the slurry cylinder 6, so as to achieve regular reciprocating lifting and lowering of the dispersion impeller 5; the stirring motor 3 is controlled to operate, and the dispersion impeller 5 can achieve high-speed stirring of the slurry when it is extended into the slurry in the slurry cylinder 6; the ultrasonic vibration head 15 is controlled to operate, so that ultrasonic dispersion can be performed while achieving automatic lifting and high-speed stirring of the dispersion impeller.

Claims

1. A catalyst automatic preparation device, characterized in that: It comprises a base (1), a bracket (2), a lifting mechanism, a stirring motor (3), a switching shaft (4), a dispersing impeller (5), a slurry cylinder (6) and an ultrasonic dispersing tank assembly; The support (2) and the ultrasonic dispersion tank assembly are respectively arranged on the base (1), and the slurry cylinder (6) is arranged in the ultrasonic dispersion tank assembly; The lifting mechanism is arranged on the bracket (2) and is used to drive the stirring motor (3) to rise and fall. The upper end of the adapter shaft (4) is connected to the driving end of the stirring motor (3), and the dispersing impeller (5) is installed on the lower end of the adapter shaft (4); The lifting mechanism drives the stirring motor (3) to rise and fall, thereby allowing the dispersing impeller (5) to extend into the slurry barrel (6) or allowing the dispersing impeller (5) to escape from the slurry barrel (6); The ultrasonic dispersion pool assembly comprises an ultrasonic dispersion pool body (13), an ultrasonic dispersion pool shell (14) and an ultrasonic vibration head (15); the ultrasonic dispersion pool shell (14) is mounted on the base (1); the ultrasonic dispersion pool body (13) is mounted in the ultrasonic dispersion pool shell (14); a plurality of ultrasonic vibration heads (15) are mounted on the outer bottom surface of the ultrasonic dispersion pool body (13); each ultrasonic vibration head (15) is located on the inner side of the ultrasonic dispersion pool shell (14); and the slurry barrel (6) is placed in the ultrasonic dispersion pool body (13); A plurality of groups of slurry barrel positioning structures are provided on the inner wall of the ultrasonic dispersion pool body (13), and each group of the slurry barrel positioning structures comprises a bearing mounting seat (16), an adjusting nut (17), a stud (18) and a clamp (19). The bearing mounting seat (16) of each group of the slurry barrel positioning structures is mounted on the inner wall of the ultrasonic dispersion pool body (13), and a rotating bearing is provided on the bearing mounting seat (16) of each group of the slurry barrel positioning structures. One end of the clamp (19) of each group of the slurry barrel positioning structures forms a clamping portion for clamping the outer wall of the slurry barrel (6). The clamp (19) of each group of the slurry barrel positioning structures The other end is connected to one end of the stud (18) of the slurry barrel positioning structure of the same group. The adjusting nut member (17) of each group of the slurry barrel positioning structure is divided into a rotating shaft portion (1701) and a threaded sleeve portion (1702) connected together. The rotating shaft portion (1701) of the adjusting nut member (17) of each group of the slurry barrel positioning structure is rotatably connected to the rotating bearing on the bearing mounting seat (16) of the slurry barrel positioning structure of the same group. The threaded sleeve portion (1702) of the adjusting nut member (17) of each group of the slurry barrel positioning structure is provided with a threaded hole for threaded connection with the other end of the stud (18) of the slurry barrel positioning structure of the same group.

2. The automatic catalyst preparation device according to claim 1, characterized in that: The lifting mechanism comprises a lifting mechanism mounting base plate (7), a lifting motor (8), a screw rod (9), and a stirring motor mounting seat (10); the lifting mechanism mounting base plate (7) is mounted on the bracket (2); the housing of the lifting motor (8) and the screw rod (9) are respectively mounted on the lifting mechanism mounting base plate (7); the driving end of the lifting motor (8) is connected to the screw rod (9); the stirring motor mounting seat (10) is provided with a screw rod nut connected to the screw rod (9) by a thread; and the housing of the stirring motor (3) is mounted on the stirring motor mounting seat (10); The axial center line of the adapter shaft (4) and the axial center line of the screw rod (9) are both perpendicular to the horizontal plane.

3. The automatic catalyst preparation device according to claim 2, characterized in that: A linear guide rail (11) is also installed on the lifting mechanism mounting base plate (7), and a sliding block (12) slidably connected to the linear guide rail (11) is provided on the stirring motor mounting seat (10), and the length direction of the linear guide rail (11) is parallel to the axial center line of the screw rod (9).

4. The automatic catalyst preparation device according to claim 1, characterized in that: A temperature probe is provided in the ultrasonic dispersion tank body (13).

5. The automatic catalyst preparation device according to claim 1, characterized in that: The shape of the inner side surface of the clamping portion of each set of the slurry barrel positioning structure clamp (19) matches the shape of the outer peripheral surface of the slurry barrel (6).

6. The automatic catalyst preparation device according to claim 1, characterized in that: Heat dissipation fins (20) are evenly arranged on the outer bottom surface of the slurry cylinder (6) along the circumferential direction.

7. The automatic catalyst preparation device according to claim 6, characterized in that: Each of the heat dissipation fins (20) is wave-shaped.

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