Fuel cell catalyst slurry dispersing device with good dispersing effect

Abstract

The invention relates to the technical field of fuel cells, and discloses a fuel cell catalyst slurry dispersing device with a good dispersing effect, the fuel cell catalyst slurry dispersing device comprises a support column, a mounting plate, a slurry dispersing tank, a feed pipe, a discharge pipe, a first motor, a second motor, a liquid inlet pipe and a dispersant liquid injection assembly, the mounting plate is fixedly connected to the top of the support column; and the slurry dispersing tank is fixedly connected to the top of the mounting plate. According to the fuel cell catalyst slurry dispersing device with the good dispersing effect, a grinding rod is driven by a first rotating roller to rotate on a filtering partition plate, fuel cell catalyst slurry injected into a tank body and a dispersing agent are preliminarily mixed, and meanwhile accumulated blocks in the fuel cell catalyst slurry are scattered and crushed; then the fuel cell catalyst slurry enters the position below the filtering partition plate, then the second rotating roller drives the rapid stirring paddle and the bottom stirring paddle to stir and mix the fuel cell catalyst slurry and the dispersing agent, and it is ensured that the dispersing effect of the slurry is good.

Description

Technical Field

[0001] The invention relates to the technical field of fuel cells, in particular to a fuel cell catalyst slurry dispersing device with good dispersing effect. Background Art

[0002] The core component of the fuel cell is the membrane electrode, which is mainly composed of a proton exchange membrane, a catalyst and a diffusion layer. In order to better exert the performance of the membrane electrode, before the membrane electrode is prepared, the catalyst needs to be dissolved in a volatile solvent to form a slurry, and then the slurry is evenly applied to both sides of the proton exchange membrane to form a catalyst layer. For the membrane electrode, the uniformity of the catalyst in the catalyst layer will also directly affect the performance of the membrane electrode produced, and ultimately affect the power generation performance of the fuel cell. Therefore, the preparation process of the catalyst slurry is also crucial.

[0003] According to the publication number CN215540535U, a fuel cell catalyst slurry dispersion device is disclosed, which includes a box body, the box body is provided with a feed port and a discharge port; and a stirring rod arranged in the box body; and a driving member for rotating the stirring rod; and at least one group of dispersion components connected to the stirring rod along the axial direction thereof, the dispersion component includes a mounting seat fixed to the stirring rod, the mounting seat is formed with an upper mounting inclined surface and a lower mounting inclined surface respectively inclined toward the side wall direction of the box body, the upper mounting inclined surface is provided with a plurality of upper vibration members, the lower mounting inclined surface is provided with a lower vibration member matched with each upper vibration member, and the end of the vibration track of the upper vibration member intersects with the end of the vibration track of the lower vibration member. The dispersion device of the present application can break up the agglomerates when the mixed slurry agglomerates, thereby better realizing the dispersion of the catalyst in the solvent.

[0004] However, the above device still has shortcomings. When the mixed slurry is agglomerated by using the upper vibrating member and the lower vibrating member, the agglomerated blocks are broken up to disperse the catalyst in the dye cell. However, the dispersion is performed in a single vibration mode, the effect is single, and the efficiency is not high. Summary of the invention

[0005] The object of the present invention is to provide a fuel cell catalyst slurry dispersing device with good dispersing effect to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fuel cell catalyst slurry dispersion device with good dispersion effect, comprising a support column, a mounting plate, a slurry dispersion tank, a feed pipe, a discharge pipe, a first motor, a second motor, a liquid inlet pipe and a dispersant injection assembly, wherein the mounting plate is fixedly connected to the top of the support column, the slurry dispersion tank is fixedly connected to the top of the mounting plate, the feed pipe is arranged above one side of the slurry dispersion tank, the discharge pipe is arranged below one side of the slurry dispersion tank, the first motor is fixedly connected to the top of the slurry dispersion tank, the second motor is fixedly connected to the bottom of the mounting plate, the liquid inlet pipe is arranged on the side of the slurry dispersion tank away from the feed pipe, and the dispersant injection assembly is arranged on one side of the liquid inlet pipe.

[0007] Preferably, the slurry dispersion tank comprises a tank body, a filter baffle, a first roller, a grinding rod, a second roller, a fast stirring paddle, a bottom stirring paddle and an inner wall cleaning rod, wherein the filter baffle is fixedly connected to the inside of the tank body, the first roller is rotatably connected to the top of the filter baffle, the grinding rod is fixedly connected to the bottom of the outside of the first roller, the second roller is rotatably connected to the bottom of the filter baffle, the fast stirring paddle is fixedly connected to the upper part of the outside of the second roller, the bottom stirring paddle is fixedly connected to the lower part of the outside of the second roller, and the inner wall cleaning rod is fixedly connected to one end of the bottom stirring paddle. The first roller drives the grinding rod to rotate, and then rotates on the filter baffle to preliminarily mix the fuel cell catalyst slurry and dispersant injected into the tank body, and at the same time break up and crush the lumps in the fuel cell catalyst slurry. Then the fuel cell catalyst slurry enters the bottom of the filter baffle, and then the second roller drives the fast stirring paddle and the bottom stirring paddle to stir and mix the fuel cell catalyst slurry and the dispersant to ensure good dispersion of the slurry. The slurry adhering to the inner wall of the tank body is cleaned by the inner wall cleaning rod to avoid adhering to the inner wall of the tank body, and effective mixing and dispersion are ensured by stirring.

[0008] Preferably, the filter baffle comprises a filter plate, a circular slide rail and a rotating block, the filter plate is fixedly connected to the inner wall of the tank body, the circular slide rail is fixedly connected to the outer side of the bottom of the filter plate, the rotating block is fixedly connected to the bottom of the filter plate, the interior of the circular slide rail is slidably connected to the top of the inner wall cleaning rod, the interior of the rotating block is rotatably connected to the top of the second roller, the circular slide rail allows the inner wall cleaning rod to rotate smoothly, and the inner wall of the tank body can be better cleaned, and the rotating block is used to ensure that the second roller rotates stably in the tank body, and there is rotation support force up and down.

[0009] Preferably, the dispersant injection assembly includes a processing box, an injection pipe, a heater, an infusion pipe and a water pump. The processing box is fixedly connected to one end of the top of the mounting plate, the injection pipe is arranged on one side of the processing box, the heater is fixedly connected to the top of the processing box, the infusion pipe is arranged on one side of the top of the processing box, and the water pump is fixedly connected to one side of the bottom of the infusion pipe. Dispersant liquid is injected into the processing box through the injection pipe, and then the dispersant liquid is injected from the infusion pipe into the tank body through the operation of the water pump, thereby improving the dispersion effect of the fuel cell catalyst slurry.

[0010] Preferably, the processing box includes a box body, a heating pipe and a water suction pipe, the heating pipe is fixedly connected to the bottom of the box body, the water suction pipe is arranged on one side of the inside of the box body, and the top of the heating pipe is electrically connected to the heater. The heating pipe is heated by the heater to increase the temperature of the dispersant liquid, thereby increasing the reaction activity of the dispersant and facilitating the reaction with the fuel cell catalyst slurry.

[0011] Preferably, the water suction pipe includes a shell, a water inlet trough and a filter screen, the top of the shell is connected to the bottom flange of the infusion tube, the water inlet trough is arranged on one side inside the shell, and the filter screen is fixedly connected to one side of the water inlet trough. The dispersant is sucked in through the water inlet trough, and the filter screen is used to filter particulate impurities that may exist in the dispersant liquid to ensure the cleanliness of the dispersant liquid.

[0012] Preferably, there are two groups of rapid stirring paddles, one group is arranged in the middle of the second roller, and the other group is arranged above the second roller. The arrangement of two groups of rapid stirring paddles facilitates the rapid stirring paddles to disperse the fuel cell catalyst slurry.

[0013] Preferably, one end of the grinding rod is rotatably connected to the inner wall of the tank body, so that the grinding rod can cover the position on the filter baffle, so that the slurry lumps can be effectively broken up without omission.

[0014] Preferably, a stirring plate is provided inside the bottom stirring paddle, and the stirring plate is rotated at the bottom of the tank body to increase the movement of the bottom slurry, thereby preventing the fuel cell catalyst slurry from sinking to the bottom.

[0015] Preferably, the output shaft of the discharge pipe passes through the tank body and is fixedly connected to the top of the first roller, and the output shaft of the first motor passes through the mounting plate and the tank body and is fixedly connected to the bottom of the second roller.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The fuel cell catalyst slurry dispersion device with good dispersion effect drives the grinding rod to rotate through the first roller, and rotates on the filter partition to preliminarily mix the fuel cell catalyst slurry and dispersant injected into the tank body, and at the same time, break up and crush the lumps in the fuel cell catalyst slurry. Then the fuel cell catalyst slurry enters the bottom of the filter partition, and then the second roller drives the fast stirring paddle and the bottom stirring paddle to stir and mix the fuel cell catalyst slurry and the dispersant to ensure a good dispersion effect of the slurry. The slurry adhering to the inner wall of the tank body is cleaned by the inner wall cleaning rod to avoid adhering to the inner wall of the tank body, and effective mixing and dispersion are ensured by stirring.

[0017] 2. The fuel cell catalyst slurry dispersion device with good dispersion effect injects dispersant liquid into the processing box through the injection pipe, and then injects the dispersant liquid from the infusion pipe into the tank body through the operation of the water pump, thereby improving the dispersion effect of the fuel cell catalyst slurry.

[0018] 3. The fuel cell catalyst slurry dispersing device with good dispersing effect heats the heating tube through the heater, so that the temperature of the dispersant liquid is increased, the reaction activity of the dispersant is increased, and it is easy to react with the fuel cell catalyst slurry.

[0019] 4. The fuel cell catalyst slurry dispersing device with good dispersing effect sucks the dispersant through the water inlet tank, and uses a filter to filter out particulate impurities that may exist in the dispersant liquid to ensure the cleanliness of the dispersant liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a cross-sectional schematic diagram of the slurry dispersion tank of the present invention; Figure 3 It is a schematic diagram of the structure of the filter partition of the present invention; Figure 4 It is a structural schematic diagram of the dispersant injection assembly of the present invention; Figure 5 It is a schematic diagram of the internal structure of the processing box of the present invention; Figure 6 It is a schematic diagram of the internal structure of the water suction pipe of the present invention.

[0021] In the figure: 1. support column; 2. mounting plate; 3. slurry dispersion tank; 4. feed pipe; 5. discharge pipe; 6. first motor; 7. second motor; 8. liquid inlet pipe; 9. dispersant injection assembly; 301. tank body; 302. filter baffle; 303. first roller; 304. grinding rod; 305. second roller; 306. fast stirring paddle; 307. bottom stirring paddle; 308. inner wall cleaning rod; 310. filter plate; 311. circular slide rail; 312. rotating block; 901. processing box; 902. injection pipe; 903. heater; 904. infusion pipe; 905. water pump; 910. box body; 911. heating pipe; 912. water suction pipe; 913. shell; 914. water inlet trough; 915. filter screen. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-6 The present invention provides a technical solution: a fuel cell catalyst slurry dispersion device with good dispersion effect, comprising a support column 1, a mounting plate 2, a slurry dispersion tank 3, a feed pipe 4, a discharge pipe 5, a first motor 6, a second motor 7, a liquid inlet pipe 8 and a dispersant injection assembly 9, the mounting plate 2 is fixedly connected to the top of the support column 1, the slurry dispersion tank 3 is fixedly connected to the top of the mounting plate 2, the feed pipe 4 is arranged above one side of the slurry dispersion tank 3, the discharge pipe 5 is arranged below one side of the slurry dispersion tank 3, the first motor 6 is fixedly connected to the top of the slurry dispersion tank 3, the second motor 7 is fixedly connected to the bottom of the mounting plate 2, the liquid inlet pipe 8 is arranged on the side of the slurry dispersion tank 3 away from the feed pipe 4, and the dispersant injection assembly 9 is arranged on one side of the liquid inlet pipe 8.

[0024] The slurry dispersion tank 3 includes a tank body 301, a filter baffle 302, a first roller 303, a grinding rod 304, a second roller 305, a fast stirring paddle 306, a bottom stirring paddle 307 and an inner wall cleaning rod 308. The filter baffle 302 is fixedly connected to the inside of the tank body 301, the first roller 303 is rotatably connected to the top of the filter baffle 302, the grinding rod 304 is fixedly connected to the bottom of the outside of the first roller 303, the second roller 305 is rotatably connected to the bottom of the filter baffle 302, the fast stirring paddle 306 is fixedly connected to the top of the outside of the second roller 305, and the bottom stirring paddle 307 is fixedly connected to the second roller. 305, the inner wall cleaning rod 308 is fixedly connected to one end of the bottom stirring paddle 307, and the length of the bottom stirring paddle 307 is consistent with the height below the filter partition 302 in the tank body 301, so as to ensure that the inner wall below the tank body 301 can be fully cleaned, the output shaft of the discharge pipe 5 passes through the tank body 301 and is fixedly connected to the top of the first roller 303, the output shaft of the first motor 6 passes through the mounting plate 2 and the tank body 301 and is fixedly connected to the bottom of the second roller 305, and the grinding rod 304 is driven to rotate through the first roller 303, and rotates on the filter partition 302 to inject the fuel cell catalyst into the tank body 301 The catalyst slurry and the dispersant are preliminarily mixed, and the lumps in the fuel cell catalyst slurry are broken up and crushed. Then the fuel cell catalyst slurry enters the bottom of the filter partition 302, and then the second roller 305 drives the fast stirring paddle 306 and the bottom stirring paddle 307 to stir and mix the fuel cell catalyst slurry and the dispersant to ensure a good dispersion effect of the slurry. The slurry adhering to the inner wall of the tank body 301 is cleaned by the inner wall cleaning rod 308 to avoid adhering to the inner wall of the tank body 301. Effective mixing and dispersion are ensured by stirring. The number of fast stirring paddles 306 is two, one set is set on the second roller 30 5, and the other group is arranged at the middle position of the second rotating roller 305. The two groups of fast stirring paddles 306 are arranged to facilitate the fast stirring paddles 306 to disperse the fuel cell catalyst slurry. One end of the grinding rod 304 is rotatably connected to the inner wall of the tank body 301, so that the grinding rod 304 can cover the position on the filter partition 302, so that the slurry lumps can be effectively broken up without missing. The bottom stirring paddle 307 is provided with a stirring plate inside, which rotates at the bottom of the tank body 301 to increase the movement of the bottom slurry, thereby preventing the fuel cell catalyst slurry from sinking to the bottom.

[0025] The filter baffle 302 includes a filter plate 310, a circular slide rail 311 and a rotating block 312. The filter plate 310 is fixedly connected to the inner wall of the tank body 301, the circular slide rail 311 is fixedly connected to the outer side of the bottom of the filter plate 310, and the rotating block 312 is fixedly connected to the bottom of the filter plate 310. The filter plate is provided with filter holes of the same size and specification inside. The filter holes are used to separate the liquid and the accumulation of the fuel cell slurry, so as to cooperate with the grinding rod 304 to clean the accumulation. The inside of the circular slide rail 311 is slidably connected to the top of the inner wall cleaning rod 308, and the inside of the rotating block 312 is rotatably connected to the top of the second roller 305. The inner wall cleaning rod 308 can rotate smoothly through the circular slide rail 311, which can better clean the inner wall of the tank body 301. The rotating block 312 is used to ensure that the second roller 305 rotates stably in the tank body 301, and there is a rotation support force up and down.

[0026] The dispersant injection assembly 9 includes a processing box 901, an injection pipe 902, a heater 903, an infusion pipe 904 and a water pump 905. The processing box 901 is fixedly connected to one end of the top of the mounting plate 2, the injection pipe 902 is arranged on one side of the processing box 901, the heater 903 is fixedly connected to the top of the processing box 901, the infusion pipe 904 is arranged on one side of the top of the processing box 901, and the water pump 905 is fixedly connected to one side of the bottom of the infusion pipe 904. Dispersant liquid is injected into the processing box 901 through the injection pipe 902, and then the dispersant liquid is injected from the infusion pipe 904 into the tank body 301 through the operation of the water pump 905, thereby improving the dispersion effect of the fuel cell catalyst slurry.

[0027] The processing box 901 includes a box body 910, a heating tube 911 and a water suction pipe 912. The heating tube 911 is fixedly connected to the bottom of the box body 910. The water suction pipe 912 is arranged on one side inside the box body 910. The top of the heating tube 911 is electrically connected to the heater 903. The heating tube 911 is heated by the heater 903 to increase the temperature of the dispersant liquid, increase the reaction activity of the dispersant, and facilitate the reaction with the fuel cell catalyst slurry. The water suction pipe 912 includes a shell 913, a water inlet groove 914 and a filter screen 915. The top of the shell 913 is connected to the bottom flange of the infusion tube 904. The water inlet groove 914 is arranged on one side inside the shell 913. The filter screen 915 is fixedly connected to one side of the water inlet groove 914. The dispersant is sucked in through the water inlet groove 914. The filter screen 915 is used to filter the particulate impurities that may exist in the dispersant liquid to ensure the cleanliness of the dispersant liquid.

[0028] When in use, the fuel cell slurry is injected into the tank body 301 through the feed pipe 4, and then the dispersant is injected into the processing box 901 through the injection pipe 902. After being heated by the heater 903 and the heating tube 911, it is injected into the tank body 301 through the infusion pipe 904. The slurry and dispersant fall onto the filter partition 302, and the liquid falls to the bottom of the tank body 301 through the filter partition 302. The lumps in the slurry exist on the filter partition 302. The discharge pipe 5 drives the first roller 303 to rotate, so that the grinding rod 304 rotates on the filter partition 302, grinds and crushes the lumps, and then falls to the bottom of the tank body 301. Then the first motor 6 drives the second roller 305 to rotate, and the slurry and dispersant are mixed by the fast stirring paddle 306 and the bottom stirring paddle 307. By stirring, adding dispersant and using high shear equipment, the preparation of high-quality and uniformly dispersed catalyst slurry can be achieved, which is very important for improving the activity and stability of fuel cell catalysts.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fuel cell catalyst slurry dispersing device with good dispersing effect, comprising a support column (1), a mounting plate (2), a slurry dispersing tank (3), a feed pipe (4), a discharge pipe (5), a first motor (6), a second motor (7), a liquid inlet pipe (8) and a dispersant injection assembly (9), characterized in that: The mounting plate (2) is fixedly connected to the top of the support column (1), the slurry dispersion tank (3) is fixedly connected to the top of the mounting plate (2), the feed pipe (4) is arranged above one side of the slurry dispersion tank (3), the discharge pipe (5) is arranged below one side of the slurry dispersion tank (3), the first motor (6) is fixedly connected to the top of the slurry dispersion tank (3), the second motor (7) is fixedly connected to the bottom of the mounting plate (2), the liquid inlet pipe (8) is arranged on a side of the slurry dispersion tank (3) away from the feed pipe (4), and the dispersant injection assembly (9) is arranged on one side of the liquid inlet pipe (8).

2. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 1, characterized in that: The slurry dispersion tank (3) comprises a tank body (301), a filter baffle (302), a first rotating roller (303), a grinding rod (304), a second rotating roller (305), a fast stirring paddle (306), a bottom stirring paddle (307) and an inner wall cleaning rod (308), wherein the filter baffle (302) is fixedly connected to the inside of the tank body (301), the first rotating roller (303) is rotatably connected to the top of the filter baffle (302), the grinding rod (304) is fixedly connected to the bottom of the outside of the first rotating roller (303), the second rotating roller (305) is rotatably connected to the bottom of the filter baffle (302), the fast stirring paddle (306) is fixedly connected to the top of the outside of the second rotating roller (305), the bottom stirring paddle (307) is fixedly connected to the bottom of the outside of the second rotating roller (305), and the inner wall cleaning rod (308) is fixedly connected to one end of the bottom stirring paddle (307).

3. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 2, characterized in that: The filter baffle (302) comprises a filter plate (310), a circular slide rail (311) and a rotating block (312); the filter plate (310) is fixedly connected to the inner wall of the tank body (301); the circular slide rail (311) is fixedly connected to the outer side of the bottom of the filter plate (310); the rotating block (312) is fixedly connected to the bottom of the filter plate (310); the interior of the circular slide rail (311) is slidably connected to the top of the inner wall cleaning rod (308); and the interior of the rotating block (312) is rotatably connected to the top of the second roller (305).

4. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 1, characterized in that: The dispersant injection assembly (9) comprises a processing box (901), an injection pipe (902), a heater (903), a liquid infusion pipe (904) and a water pump (905); the processing box (901) is fixedly connected to one end of the top of the mounting plate (2); the injection pipe (902) is arranged on one side of the processing box (901); the heater (903) is fixedly connected to the top of the processing box (901); the liquid infusion pipe (904) is arranged on one side of the top of the processing box (901); and the water pump (905) is fixedly connected to one side of the bottom of the liquid infusion pipe (904).

5. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 4, characterized in that: The processing box (901) comprises a box body (910), a heating pipe (911) and a water suction pipe (912); the heating pipe (911) is fixedly connected to the bottom of the box body (910), and the water suction pipe (912) is arranged on one side inside the box body (910).

6. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 5, characterized in that: The water suction pipe (912) comprises a shell (913), a water inlet trough (914) and a filter screen (915); the top of the shell (913) is connected to the bottom flange of the infusion tube (904); the water inlet trough (914) is arranged on one side inside the shell (913); and the filter screen (915) is fixedly connected to one side of the water inlet trough (914).

7. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 2, characterized in that: The number of the fast stirring paddles (306) is two groups, one group is arranged at the middle position of the second rotating roller (305), and the other group is arranged above the second rotating roller (305).

8. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 2, characterized in that: One end of the grinding rod (304) is rotatably connected to the inner wall of the tank body (301).

9. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 2, characterized in that: A stirring plate is arranged inside the bottom stirring paddle (307).

10. A fuel cell catalyst slurry dispersing device with good dispersing effect according to claim 2, characterized in that: The output shaft of the discharge pipe (5) passes through the tank body (301) and is fixedly connected to the top of the first rotating roller (303), and the output shaft of the first motor (6) passes through the mounting plate (2) and the tank body (301) and is fixedly connected to the bottom of the second rotating roller (305).

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