Preparation process and system of hydrogen production catalyst with micro-nano multi-stage pores

Abstract

The application discloses a hydrogen production catalyst preparation process and system with micro-nano multi-stage pores, which comprises a conveying assembly and a fixedly connected forming assembly; the top end of the conveying assembly is respectively provided with a punching assembly, a material discharging assembly and a feeding assembly; the conveying assembly drives the forming assembly to fill catalyst powder through the feeding assembly, punch forming through the punching assembly and unload the formed powder solid through the material discharging assembly; in the application, the material discharging assembly discharges the formed solid in the forming assembly through the connecting rope connected with the punching assembly, and then the conveying assembly moves the forming assembly to the feeding assembly for powder filling; the driving belt drives the rotating seat and the eccentric shaft to rotate, so that the feeding assembly moves along the eccentric shaft through the connected swing arm, the feeding assembly fills the powder into the forming assembly after discharging, and the catalyst powder is prepared into catalyst solid to form a closed loop, thereby improving the efficiency of catalyst preparation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder processing, in particular to a hydrogen production catalyst preparation process and system with micro-nano multi-stage pores. BACKGROUND

[0002] Hydrogen energy has received more and more attention in the field of new energy due to its high energy conversion efficiency and cleanliness. However, the activity and cost of anode catalysts have always restricted the large-scale application of direct fuel cells. Pt and Pt-based alloys, as the best water electrolysis hydrogen production catalysts, have limited commercial application due to their high price and limited reserves.

[0003] For example, a hydrogen peroxide preparation process hydrogenation tower catalyst loading and unloading device is disclosed in Chinese Patent No. CN216879249U, which includes a catalyst loading system and a catalyst unloading system. The catalyst loading system includes a cantilever electric hoist, a hoisting rail frame, and a catalyst loading hopper. The cantilever electric hoist lifts the catalyst loading hopper to the catalyst inlet through the hoisting rail frame. The catalyst unloading system includes a catalyst unloading hopper and an unloading pipeline, which is composed of a catalyst pipeline and a waste pipeline. The catalyst unloading hopper includes a hopper body and a sieve plate. The sieve plate is inclinedly arranged in the hopper body, forming a catalyst passage above the sieve plate and a waste passage below the sieve plate. The catalyst passage is connected to the catalyst pipeline, and the waste passage is connected to the waste pipeline. The unloading hopper is replaced by a sieve hopper, which realizes the sieving of the catalyst during the unloading process, collects the catalyst and waste separately, saves time and labor costs, and the device requires multiple driving units for processing the solid structure formed by the catalyst preparation.

[0004] The existing technology has the following disadvantages: the catalyst preparation requires the powder structure to be punched into a solid structure, which requires the catalyst powder to be filled into the mold and punched with the punching equipment for solidification, resulting in complicated working steps and the inability to form a closed loop for the catalyst powder punching into a solid step, affecting the efficiency of catalyst preparation. SUMMARY

[0005] The present application provides a hydrogen production catalyst preparation process and system with micro-nano multi-stage pores. The connecting rope connected to the punching assembly drives the material returning assembly to punch the solid formed in the forming assembly, and then the conveying assembly moves the forming assembly to the feeding assembly for powder filling. The connecting rope drives the friction wheel to rotate, and the friction wheel drives the rotating seat and eccentric shaft through the transmission belt to rotate, so that the feeding assembly moves along the eccentric shaft through the connected swing arm, and the feeding assembly fills the powder into the forming assembly after material returning, forming a closed loop for the preparation of catalyst powder into catalyst solid, and improving the efficiency of catalyst preparation.

[0006] In order to achieve the above-mentioned purpose, the application adopts the following technical solutions:

[0007] A hydrogen production catalyst preparation process, characterized in that it comprises the following steps: step one, preparing a proper amount of impregnation solution, adding the prepared impregnation solution into the shaped carrier, impregnating under negative pressure, drying and calcining the impregnated carrier at a proper temperature to prepare a powder catalyst; step two, filling the dried powder catalyst into a forming assembly through a feeding assembly, and forming the powder catalyst into a solid structure through a stamping assembly; step three, discharging the catalyst with a solid structure through a discharging assembly to complete the collection of the solid catalyst.

[0008] A hydrogen production catalyst preparation process and system with micro-nano multi-stage pores, comprising a conveying assembly and a forming assembly fixedly connected thereto.

[0009] The conveying assembly is provided with a stamping assembly, a discharging assembly and a feeding assembly at the top end, respectively.

[0010] Further comprising a linkage assembly, which is drivingly connected to the discharging assembly and the feeding assembly through the reciprocating stroke of the stamping assembly to realize the synchronous movement of the discharging assembly and the feeding assembly to complete the feeding and discharging of the forming assembly.

[0011] Further description of the above technical solutions:

[0012] The conveying assembly comprises a mounting plate, the inner side of which is fixedly connected with a driving motor, the output end of which is sleeved with a belt, one end of the belt away from the driving motor is sleeved with a belt pulley, the bottom end of the belt pulley is fixedly connected with a rotating disc, and the rotating disc is symmetrically arranged on both sides of the driving motor, the outer side of the two rotating discs is sleeved with a conveying belt, and one end of the conveying belt is fixedly connected with the forming assembly.

[0013] Further description of the above technical solutions:

[0014] One end of the mounting plate is fixedly connected with a support rod, one end of the support rod away from the mounting plate is fixedly connected with a rack rod, and the rack rod is matched with the forming assembly, one end of the support rod is fixedly connected with a connecting strip, one end of the connecting strip is fixedly connected with a directional rail, and the directional rail limits the stable state movement of the forming assembly, and the conveying assembly drives the forming assembly to rotate and cooperate with the stamping material returning assembly.

[0015] As a further description of the above technical scheme:

[0016] The stamping assembly comprises a support, one end of the support is fixedly connected with a hydraulic cylinder, the bottom end of the hydraulic cylinder is provided with a hydraulic rod, the bottom end of the hydraulic rod is fixedly connected with a stamping block, one end of the hydraulic rod close to the stamping block is drivingly connected with a transmission assembly, one end of the transmission assembly is drivingly connected with a movable rod, and the bottom end of the movable rod is fixedly connected with a baffle.

[0017] As a further description of the above technical scheme:

[0018] The transmission assembly comprises a limiting sleeve, and the hydraulic rod and the movable rod are respectively sleeved in the limiting sleeve, a gear block is movably arranged on the inner side of the limiting sleeve, gear one and gear two are respectively engaged on both ends of the gear block, gear one and gear two are respectively fixedly connected on the hydraulic rod and the movable rod, fixed ears are symmetrically fixedly connected on both ends of the limiting sleeve, a fixed rod is fixedly connected on one end of the fixed ear, and the fixed rod is fixedly connected with the connecting rope.

[0019] As a further description of the above technical scheme:

[0020] The material returning assembly comprises a tripod, a sliding groove is formed in the inner side of the tripod, a sliding block is slidingly connected in the sliding groove, a return spring is fixedly connected on the top end of the sliding block, a top plate is fixedly connected on the top end of the return spring, the top plate is fixed on the tripod, a linkage rod is fixedly connected on one side of the bottom end of the sliding block, a material returning block is fixedly connected on the bottom end of the linkage rod, and the other side of the bottom end of the sliding block is fixedly connected with the connecting rope.

[0021] As a further description of the above technical scheme:

[0022] The feeding assembly comprises a bearing basin, the bearing basin is rotatably connected with a baffle disc at the bottom end, the bearing basin is provided with a flattening strip at the top end, the flattening strip is fixedly connected with a material guide cover at the top end, the material guide cover is fixedly connected with an external connecting pipe at the top end, and the material guide cover is movably provided with an oscillating arm at one end.

[0023] As a further description of the above technical scheme:

[0024] The forming assembly includes a forming cylinder, a connecting rod fixedly connected to one end of the forming cylinder, a half-toothed disc fixedly connected to one end of the connecting rod, a rotating shaft rod fixedly connected to one end of the half-toothed disc, and a stop block symmetrically arranged at both ends of the rotating shaft rod and fixed to the half-toothed disc, a U-shaped rod fixedly connected to the rotating shaft rod away from the half-toothed disc, and a torsional spring sleeved outside the rotating shaft rod and fixedly connected at both ends to the U-shaped rod and the half-toothed disc.

[0025] Further description of the above technical solution is as follows:

[0026] The forming cylinder includes a cylinder wall, an extrusion plate slidingly connected to the inner side of the cylinder wall, a tension spring fixedly connected to the bottom end of the extrusion plate, a shaping rod penetrating through the extrusion plate, a fixed plate fixedly connected to the bottom end of the shaping rod, a supporting spring fixedly connected to the bottom end of the fixed plate, a directional rod arranged at the bottom end of the cylinder wall, a connecting rod fixedly connected to the top end of the directional rod and fixed to the extrusion plate through the fixed plate, and a contact plate fixedly connected to the bottom end of the connecting rod.

[0027] The application provides a hydrogen production catalyst preparation process and system with micro-nano multi-stage pores.

[0028] In the application, the connecting rope connected with the stamping assembly drives the material returning assembly to return the solid formed in the forming assembly, and the conveying assembly moves the forming assembly to the powder filling assembly for powder filling. The connecting rope drives the friction wheel to rotate, the friction wheel drives the sleeved rotating seat and eccentric shaft to rotate through the transmission belt, so that the powder filling assembly moves along the eccentric shaft through the connected swing arm, the powder filling assembly fills the forming assembly with returned material with powder again, a closed loop of catalyst powder preparation and catalyst solid formation is formed, and the efficiency of catalyst preparation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A structure diagram of the hydrogen production catalyst preparation process and system with micro-nano multi-stage pores is provided in the application.

[0030] Figure 2 A structure diagram of the rack rod in the application is provided.

[0031] Figure 3 A structure diagram of the conveying assembly in the application is provided.

[0032] Figure 4 A structure diagram of the connecting assembly in the application is provided. Figure 3 A partial diagram of A in the application is provided.

[0033] Figure 5 A structure diagram of the connecting assembly in the application is provided.

[0034] Figure 6 A structure diagram of the connecting assembly in the application is provided.Figure 5 Partial view at B;

[0035] Figure 7 Structure diagram of the stamping assembly in the application;

[0036] Figure 8 Structure diagram of the feeding assembly in the application;

[0037] Figure 9 Structure diagram of the forming assembly in the application;

[0038] Figure 10 Structure diagram of the extrusion plate in the application;

[0039] Figure 11 Structure diagram of the forming cylinder in the application.

[0040] Legend: 1, conveying assembly; 11, mounting plate; 12, driving motor; 13, belt loop; 14, belt pulley; 15, rotating disc; 16, conveying belt; 17, support rod; 18, rack rod; 19, directional rail; 110, connecting strip; 111, sliding cover plate; 2, forming assembly; 21, forming cylinder; 211, cylinder wall; 212, extrusion plate; 213, directional rod; 214, fixing plate; 215, shaping rod; 216, tension spring; 217, support spring; 218, connecting rod; 219, abutting plate; 22, connecting rod; 23, half-toothed disc; 24, stop block; 25, torsion spring; 26, rotating shaft rod; 27, U-shaped rod; 28, rectangular frame; 29, bolt rod; 210, clamping strip; 201, extrusion column; 202, rotating bead; 3, stamping assembly; 31, support; 32, transmission wheel one; 33, transmission wheel two; 34, hydraulic cylinder; 35, hydraulic rod; 36, stamping block; 37, transmission assembly; 371, limiting sleeve; 372, fixing lug; 373, fixing rod; 374, gear block; 375, rack one; 376, rack two; 38, movable rod; 39, baffle; 4, linkage assembly; 41, connecting rope; 42, friction wheel; 43, transmission belt; 44, rotating seat; 45, eccentric shaft; 46, swing arm; 47, positioning plate; 5, material returning assembly; 51, tripod; 52, sliding chute; 53, top plate; 54, return spring; 55, sliding block; 56, linkage rod; 57, material returning block; 58, transmission wheel three; 6, feeding assembly; 61, bearing basin; 62, baffle disc; 63, material guiding cover; 64, smoothing strip; 65, external connecting pipe. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments of the application.

[0042] A hydrogen production catalyst preparation process, characterized in that it comprises the following steps:

[0043] Step one, prepare an appropriate amount of impregnation solution, add the prepared impregnation solution to the shaped carrier, impregnate under negative pressure, and dry and calcine the impregnated carrier at an appropriate temperature to produce a powdered catalyst;

[0044] Step two, load the dried powdered catalyst into the forming assembly 2 through the feeding assembly 6, and the forming assembly 2 is pressed into a solid structure by the stamping assembly 3;

[0045] Step three, the catalyst pressed into a solid structure is unloaded by the material unloading assembly 5, and the collection of solid catalyst is completed.

[0046] Referring to Figures 1-11 A hydrogen production catalyst preparation process and system with micro-nano multi-stage pores, comprising a conveying assembly 1 and a forming assembly 2 fixedly connected thereto; the top end of the conveying assembly 1 is provided with a stamping assembly 3, a material unloading assembly 5 and a feeding assembly 6; the conveying assembly 1 drives the forming assembly 2 to fill the catalyst powder through the feeding assembly 6, stamping assembly 3, and the material unloading assembly 5 unloads the formed powder solid; further comprising a linkage assembly 4, the linkage assembly 4 is transmissionally connected to the material unloading assembly 5 and the feeding assembly 6 through the reciprocating stroke of the stamping assembly 3 to realize the synchronous movement of the material unloading assembly 5 and the feeding assembly 6 to complete the feeding and unloading of the forming assembly 2; the linkage assembly 4 comprises a connecting rope 41, and the two ends of the connecting rope 41 are respectively connected to the material unloading assembly 5 and the stamping assembly 3; the connecting rope 41 is frictionally connected with a friction wheel 42, the bottom end of the friction wheel 42 is sleeved with a transmission belt 43, one end of the transmission belt 43 away from the friction wheel 42 is sleeved with a rotating seat 44, the top end of the rotating seat 44 is fixedly connected with an eccentric shaft 45, one end of the eccentric shaft 45 is movably connected with a swing arm 46, and the swing arm 46 is transmissionally connected with the feeding assembly 6;

[0047] Specifically, the conveying assembly 1 drives the array fixedly connected forming assembly 2 to move in an approximate oval track structure, the conveying assembly 1 is respectively provided with a punching assembly 3, a material returning assembly 5 and a feeding assembly 6, the punching assembly 3 and the material returning assembly 5 are symmetrically arranged at both ends of the conveying assembly 1, the feeding assembly 6 is arranged at the outlet end of the material returning assembly 5 and the forming assembly 2, the connecting rope 41 in the linkage assembly 4 is fixedly connected to the punching assembly 3 and the material returning assembly 5 respectively, when the punching assembly 3 drives the forming assembly 2 on the conveying assembly 1 to move to the punching position, the punching assembly 3 punches the powder in the forming assembly 2 into a solid structure, and then the forming assembly 2 is conveyed to the material returning assembly 5 by the conveying assembly 1, in the reciprocating stroke of the punching assembly 3 punching the forming assembly 2, the connecting rope 41 connected to the punching assembly 3 drives the material returning assembly 5 to punch and return the formed solid in the forming assembly 2, and then the conveying assembly 1 drives the forming assembly 2 to move to the feeding assembly 6 for powder filling, wherein the connecting rope 41 drives the friction wheel 42 to rotate, the friction wheel 42 drives the rotating seat 44 and the eccentric shaft 45 sleeved thereon to rotate through the transmission belt 43, so that the feeding assembly 6 moves along the eccentric shaft 45 through the connected swing arm 46, so that the feeding assembly 6 fills the powder into the forming assembly 2 after material returning, so as to form a closed loop of catalyst powder preparation into catalyst solid, and improve the efficiency of catalyst preparation;

[0048] The conveying assembly 1 comprises a mounting plate 11, the inner side of the mounting plate 11 is fixedly connected with a driving motor 12, the output end of the driving motor 12 is sleeved with a belt ring 13, one end of the belt ring 13 away from the driving motor 12 is sleeved with a belt pulley 14, the bottom end of the belt pulley 14 is fixedly connected with a rotating disc 15, and the rotating disc 15 is symmetrically arranged on both sides of the driving motor 12, the outer side of the two rotating discs 15 is sleeved with a conveying belt 16, and one end of the conveying belt 16 is fixedly connected with the forming assembly 2; one end of the mounting plate 11 is fixedly connected with a supporting rod 17, one end of the supporting rod 17 away from the mounting plate 11 is fixedly connected with a rack rod 18, and the rack rod 18 is matched with the forming assembly 2, one end of the supporting rod 17 is fixedly connected with a connecting strip 110, one end of the connecting strip 110 is fixedly connected with a directional rail 19, and the directional rail 19 limits the forming assembly 2 to move in a stable state, and the conveying assembly 1 drives the forming assembly 2 to rotate and cooperate with the material returning assembly 5 to punch and return materials after the forming assembly 2 abuts against the rack rod 18;

[0049] Specifically, the driving motor 12 is fixedly connected to the mounting plate 11 in the conveying assembly 1, the driving motor 12 drives the pulley 14 fixedly connected to the rotating disc 15 to rotate through the belt 13, so that the conveying belt 16 sleeved outside the rotating disc 15 is driven to move by the driving motor 12, the rack rod 18 fixedly connected to the mounting plate 11 through the support rod 17 is arranged at the cut-off position of the directional rail 19, the cut-off position of the directional rail 19 is filled through the rack rod 18, so that the forming assembly 2 is separated from the cut-off position of the directional rail 19 under the driving of the conveying assembly 1, and at the same time, the forming assembly 2 rotates after abutting against the rack rod 18, so as to turn over the forming assembly 2, the material returning assembly 5 returns the material of the turned-over forming assembly 2, and the convenience of the device is improved.

[0050] The stamping assembly 3 comprises a support 31, one end of the support 31 is fixedly connected with a hydraulic cylinder 34, the bottom end of the hydraulic cylinder 34 is provided with a hydraulic rod 35, the bottom end of the hydraulic rod 35 is fixedly connected with a stamping block 36, one end of the hydraulic rod 35 close to the stamping block 36 is drivingly connected with a transmission assembly 37, one end of the transmission assembly 37 is drivingly connected with a movable rod 38, the bottom end of the movable rod 38 is fixedly connected with a baffle 39; the transmission assembly 37 comprises a limiting sleeve 371, the hydraulic rod 35 and the movable rod 38 are sleeved in the limiting sleeve 371 respectively, a gear block 374 is movably arranged in the inner side of the limiting sleeve 371, gear blocks 374 are meshed with a first rack 375 and a second rack 376 at two ends respectively, the first rack 375 and the second rack 376 are fixedly connected to the hydraulic rod 35 and the movable rod 38 respectively, the limiting sleeve 371 is fixedly connected with a fixed lug 372 at two ends symmetrically, one end of the fixed lug 372 is fixedly connected with a fixed rod 373, and the fixed rod 373 is fixedly connected with the connecting rope 41.

[0051] Specifically, the bracket 31 in the stamping assembly 3 is fixed on the sliding cover plate 111, the sliding cover plate 111 is fixed on the mounting plate 11 through the cross arm, the sliding cover plate 111 limits the forming assembly 2, and the friction between the forming assembly 2 and the sliding cover plate 111 is reduced through the rotating ball 202. The hydraulic cylinder 34 fixedly connected to the bracket 31 drives the directional movement of the hydraulic rod 35. The stamping block 36 fixedly connected to the bottom end of the hydraulic rod 35 moves downward. The transmission assembly 37 is arranged at the position close to the stamping block 36 of the hydraulic rod 35. The gear block 374 in the transmission assembly 37 is meshed with the rack one 375 and the rack two 376 at both ends, respectively. The rack one 375 and the rack two 376 are fixedly connected to the hydraulic rod 35 and the movable rod 38, respectively. When the hydraulic rod 35 moves downward in the stroke, the movable rod 38 driven by the gear block 374 moves upward, so that the stamping block 36 and the baffle 39 clamp and shape the powder in the forming assembly 2, so as to keep the forming assembly 2 in the fixed position of the conveying assembly 1 and improve the stability of the forming assembly 2. The transmission wheel one 32 and the transmission wheel two 33 are arranged in vertical symmetry on the bracket 31. The connecting rope 41 is arranged around the transmission wheel one 32 and the transmission wheel two 33, so that the hydraulic rod 35 drives the material returning assembly 5 to move downward through the connecting rope 41.

[0052] The material returning assembly 5 includes a triangular frame 51. The sliding groove 52 is arranged in the inner side of the triangular frame 51. The sliding block 55 is slidably connected to the sliding groove 52. The reset spring 54 is fixedly connected to the top end of the sliding block 55. The top plate 53 is fixedly connected to the top end of the reset spring 54. The top plate 53 is fixed on the triangular frame 51. The connecting rod 56 is fixedly connected to one side of the bottom end of the sliding block 55. The material returning block 57 is fixedly connected to the bottom end of the connecting rod 56. The other side of the bottom end of the sliding block 55 is fixedly connected with the connecting rope 41.

[0053] Specifically, the triangular frame 51 in the material returning assembly 5 is in a right triangle structure. The sliding block 55 is slidably connected in the sliding groove 52 arranged in the triangular frame 51. When the stamping assembly 3 is in the stamping stroke, the hydraulic rod 35 drives the sliding block 55 to move downward along the sliding groove 52 through the connecting rope 41. The material returning block 57 fixedly connected to the bottom end of the sliding block 55 extrudes and falls off the catalyst solid in the forming assembly 2. At the same time, the reset spring 54 fixedly connected to the top end of the sliding block 55 is stressed in the stroke of the downward movement of the sliding block 55. The transmission wheel three 58 arranged at the bottom end of the triangular frame 51 is used for limiting the position of the connecting rope 41. When the stamping assembly 3 is in the reset stroke, the sliding block 55 is reset under the elastic action of the reset spring 54, so as to realize the synchronous movement of the material returning assembly 5 and the stamping assembly 3, and improve the efficiency of catalyst processing of the stamping assembly 3 and the material returning assembly 5.

[0054] The loading assembly 6 comprises a bearing basin 61, the bottom end of the bearing basin 61 is rotationally connected with a baffle disc 62, the top end of the bearing basin 61 is provided with a smoothing strip 64, the top end of the smoothing strip 64 is fixedly connected with a material guiding cover 63, the top end of the material guiding cover 63 is fixedly connected with an external connecting pipe 65, and one end of the material guiding cover 63 is movably provided with a swing arm 46;

[0055] Specifically, the bearing basin 61 in the loading assembly 6 is in a rectangular structure, the baffle disc 62 rotationally connected at the bottom end of the bearing basin 61 is in an open state when powder is filled in the forming assembly 2, when the forming assembly 2 moves under the driving of the conveying assembly 1, the baffle disc 62 moves synchronously with the forming assembly 2, the baffle disc 62 closes the notch at the bottom end of the bearing basin 61, so that the device automatically opens and closes after powder filling, improving the convenience of the device in use, the material guiding cover 63 provided at the top end of the bearing basin 61 reciprocates along the bearing basin 61 through the swing arm 46, so that the smoothing strip 64 fixedly connected at the bottom end of the material guiding cover 63 smoothes the powder filled in the forming assembly 2, improving the efficiency of powder filling, the triangular support 51 and the support 31 are fixedly connected through the positioning plate 47, maintaining the stability of the triangular support 51 and the support 31;

[0056] The forming assembly 2 comprises a forming cylinder 21, one end of the forming cylinder 21 is fixedly connected with a connecting rod 22, one end of the connecting rod 22 is fixedly connected with a half-tooth disc 23, one end of the half-tooth disc 23 is fixedly connected with a rotating shaft rod 26, the rotating shaft rod 26 is symmetrically provided with a stop block 24 at both ends, the stop block 24 is fixed on the half-tooth disc 23, the rotating shaft rod 26 is fixedly connected with a U-shaped rod 27 away from the half-tooth disc 23, a torsional spring 25 is sleeved outside the rotating shaft rod 26, and both ends of the torsional spring 25 are fixedly connected on the U-shaped rod 27 and the half-tooth disc 23 respectively; the forming cylinder 21 comprises a cylinder wall 211, the cylinder wall 211 is slidably connected with an extrusion plate 212 inside, the extrusion plate 212 is fixedly connected with a tension spring 216 at the bottom end, the extrusion plate 212 is provided with a shaping rod 215 penetrating therein, the shaping rod 215 is fixedly connected with a fixed plate 214 at the bottom end, the fixed plate 214 is fixedly connected with a supporting spring 217 at the bottom end, the cylinder wall 211 is provided with a directional rod 213 at the bottom end, the directional rod 213 is fixedly connected with a connecting rod 218 at the top end, the connecting rod 218 penetrates through the fixed plate 214 and is fixed on the extrusion plate 212, and the connecting rod 218 is fixedly connected with a contact plate 219 at the bottom end;

[0057] Specifically, the forming cylinder 21 in the forming assembly 2 has a hollow cylindrical structure. After the half-tooth disc 23 fixedly connected to one end of the forming cylinder 21 is in contact with the rack bar 18, the half-tooth disc 23 drives the forming cylinder 21 to flip around the rotating shaft 26. The rectangular frame 28 fixedly connected to one end of the U-shaped rod 27 clamps the conveying belt 16. The rotating bolt rod 29 drives the clamping strip 210 to fix the conveying belt 16 on the extrusion column 201 at one end of the rectangular frame 28, thereby improving the convenience of fixing the forming cylinder 21 and the conveying belt 16. Secondly, the extrusion plate 212 is slidably connected to the cylinder wall 211 in the forming cylinder 21. The profiling rod 215 penetratingly arranged in the extrusion plate 212 is used to form a notch in which the catalyst solid is arranged. The top surface of the profiling rod 215 is flush with the top surface of the cylinder wall 211. The bottom end of the profiling rod 215 is fixedly connected to the supporting spring 217 for resetting. The connecting rod 218 and the directional rod 213 fixedly connected to the bottom end of the extrusion plate 212 are used to support the movement of the extrusion plate 212 along the cylinder wall 211. The tension spring 216 fixedly connected to the bottom end of the extrusion plate 212 is used to reset the initial position of the extrusion plate 212. When the punch block 36 in the punching assembly 3 moves towards the baffle 39, the punch block 36 moves downward against the profiling rod 215. The baffle 39 drives the extrusion plate 212 fixedly connected to the abutting plate 219 to move upward, so as to extrude and solidify the powder in the cylinder wall 211. When the cylinder wall 211 is flipped, the material return block 57 drives the extrusion plate 212 fixedly connected to the abutting plate 219 to move, so as to unload the solid catalyst formed in the cylinder wall 211.

[0058] Working principle: The conveying assembly 1 is respectively provided with the punching assembly 3, the material return assembly 5 and the feeding assembly 6. The punching assembly 3 and the material return assembly 5 are symmetrically arranged at both ends of the conveying assembly 1. The feeding assembly 6 is arranged at the outlet end of the material return assembly 5. The connecting ropes 41 in the linkage assembly 4 are respectively fixedly connected to the punching assembly 3 and the material return assembly 5. When the punching assembly 3 drives the forming assembly 2 to move to the punching position, the powder in the forming assembly 2 is punched into a solid structure. Through the reciprocating stroke of the punching assembly 3, the connecting ropes 41 connected to the punching assembly 3 drive the material return assembly 5 to punch and return the solid in the forming assembly 2. The conveying assembly 1 moves the forming assembly 2 to the feeding assembly 6 for powder filling. The connecting ropes 41 drive the friction wheels 42 to rotate. The friction wheels 42 drive the rotating seat 44 and the eccentric shaft 45 through the transmission belt 43, so as to drive the feeding assembly 6 to move along the eccentric shaft 45 through the connected swing arm 46. The feeding assembly 6 fills the powder into the material return assembly 2 again, so as to form a closed loop of the catalyst powder and the catalyst solid, thereby improving the efficiency of catalyst preparation.

[0059] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical solutions and concepts of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A hydrogen production catalyst preparation system with micro-nano multi-stage pores, characterized in that, Including conveying assembly (1) and its fixed connection forming assembly (2); The conveying assembly (1) top is respectively provided with punch assembly (3), material returning assembly (5) and feeding assembly (6), the conveying assembly (1) drives forming assembly (2) to fill catalyst powder through feeding assembly (6), punch assembly (3) is punched and formed and material returning assembly (5) is unloaded to the powder solid formed; It also includes linkage assembly (4), the linkage assembly (4) is drivenly connected material returning assembly (5) and feeding assembly (6) synchronous movement through punch assembly (3) reciprocating stroke, realizes material returning assembly (5) and feeding assembly (6) complete forming assembly (2) loading and material returning;The linkage assembly (4) includes connecting rope (41), and connecting rope (41) both ends are connected material returning assembly (5) and punch assembly (3), the connecting rope (41) is frictionally connected with friction wheel (42), the bottom end of friction wheel (42) is sleeved with transmission belt (43), the end of transmission belt (43) away from friction wheel (42) is sleeved with rotating seat (44), the top of rotating seat (44) is fixedly connected with eccentric shaft (45), one end of eccentric shaft (45) is movably connected with swing arm (46), and swing arm (46) is drivenly connected with feeding assembly (6); The material returning assembly (5) includes tripod (51), the inner side of tripod (51) is provided with a sliding slot (52), the sliding slot (52) is slidably connected with a sliding block (55), the top of sliding block (55) is fixedly connected with a return spring (54), the top of return spring (54) is fixedly connected with a top plate (53), and the top plate (53) is fixed on the tripod (51), one side of the bottom end of sliding block (55) is fixedly connected with a linkage rod (56), the bottom end of linkage rod (56) is fixedly connected with a material returning block (57), the other side of the bottom end of sliding block (55) is fixedly connected with connecting rope (41); The feeding assembly (6) includes a bearing basin (61), the bottom end of bearing basin (61) is rotatably connected with a baffle disc (62), the top of bearing basin (61) is provided with a smoothing strip (64), the top of smoothing strip (64) is fixedly connected with a material guide cover (63), the top of material guide cover (63) is fixedly connected with an external pipe (65), and the one end of material guide cover (63) is movably provided with a swing arm (46); It includes the following steps: step one, prepare a suitable amount of impregnation solution, add the prepared impregnation solution into the formed carrier, impregnate under negative pressure, dry and calcine the impregnated carrier at a suitable temperature to prepare a powdered catalyst;Step two, the dried powdered catalyst is filled into the forming assembly through the feeding assembly, and the forming assembly is punched into a solid structure by the punch assembly;Step three, the catalyst punched into a solid structure is unloaded by the material returning assembly, and the collection of solid catalyst is completed.

2. The hydrogen production catalyst preparation system with micro-nano multi-stage pores according to claim 1, characterized in that, The conveying assembly (1) includes a mounting plate (11), the inside of the mounting plate (11) is fixedly connected with a driving motor (12), the output end of the driving motor (12) is sleeved with a belt (13), one end of the belt (13) away from the driving motor (12) is sleeved with a belt pulley (14), the bottom end of the belt pulley (14) is fixedly connected with a rotating disc (15), and the rotating disc (15) is symmetrically arranged on the two sides of the driving motor (12), the outer sides of the two rotating discs (15) are sleeved with a conveying belt (16), and one end of the conveying belt (16) is fixedly connected with a forming assembly (2).

3. The hydrogen production catalyst preparation system with micro-nano multi-stage pores according to claim 2, characterized in that, One end of the mounting plate (11) is fixedly connected with a supporting rod (17), one end of the supporting rod (17) away from the mounting plate (11) is fixedly connected with a rack rod (18), and the rack rod (18) is matched with the forming assembly (2), one end of the supporting rod (17) is fixedly connected with a connecting strip (110), one end of the connecting strip (110) is fixedly connected with a directional rail (19), and the directional rail (19) limits the stable state movement of the forming assembly (2), and the conveying assembly (1) drives the forming assembly (2) to rotate and cooperate with the rack rod (18) to stamp the material returning assembly (5).

4. The hydrogen production catalyst preparation system with micro-nano multi-stage pores according to claim 1, characterized in that, The stamping assembly (3) includes a support (31), one end of the support (31) is fixedly connected with a hydraulic cylinder (34), the bottom end of the hydraulic cylinder (34) is provided with a hydraulic rod (35), the bottom end of the hydraulic rod (35) is fixedly connected with a stamping block (36), one end of the hydraulic rod (35) close to the stamping block (36) is drivingly connected with a transmission assembly (37), one end of the transmission assembly (37) is drivingly connected with a movable rod (38), and the bottom end of the movable rod (38) is fixedly connected with a baffle (39).

5. The hydrogen production catalyst preparation system with micro-nano multi-stage pores according to claim 4, characterized in that, The transmission assembly (37) includes a limiting sleeve (371), and the hydraulic rod (35) and the movable rod (38) are respectively sleeved in the limiting sleeve (371), the inner side of the limiting sleeve (371) movably provided with a gear block (374), the gear block (374) has a rack one (375) and a rack two (376) engaged at both ends, and the rack one (375) and the rack two (376) are fixedly connected on the hydraulic rod (35) and the movable rod (38), respectively, the both ends of the limiting sleeve (371) are fixedly connected with a fixed lug (372), one end of the fixed lug (372) is fixedly connected with a fixed rod (373), and the fixed rod (373) is fixedly connected with a connecting rope (41).

6. The hydrogen production catalyst preparation system with micro-nano multi-stage pores according to claim 1, characterized in that, The forming assembly (2) includes a forming cylinder (21), one end of the forming cylinder (21) is fixedly connected with a connecting rod (22), one end of the connecting rod (22) is fixedly connected with a half tooth disc (23), one end of the half tooth disc (23) is fixedly connected with a rotating shaft rod (26), the rotating shaft rod (26) is symmetrically provided with a stop block (24) at both ends, the stop block (24) is fixed on the half tooth disc (23), the rotating shaft rod (26) is fixedly connected with a U-shaped rod (27) away from the half tooth disc (23), the rotating shaft rod (26) is provided outside with a torsional spring (25), and the torsional spring (25) is fixedly connected at both ends on the U-shaped rod (27) and the half tooth disc (23) respectively.

7. The hydrogen production catalyst preparation system with micro-nano multi-stage pores according to claim 6, characterized in that, The forming cylinder (21) includes a cylinder wall (211), the inside of the cylinder wall (211) is slidably connected with an extrusion plate (212), the bottom end of the extrusion plate (212) is fixedly connected with a tension spring (216), the inside of the extrusion plate (212) is provided with a shaping rod (215) in penetration, the bottom end of the shaping rod (215) is fixedly connected with a fixed plate (214), the bottom end of the fixed plate (214) is fixedly connected with a supporting spring (217), the bottom end of the cylinder wall (211) is provided with a directional rod (213), the top end of the directional rod (213) is fixedly connected with a connecting rod (218), the connecting rod (218) penetrates through the fixed plate (214) and is fixed on the extrusion plate (212), and the bottom end of the connecting rod (218) is fixedly connected with a resisting plate (219).

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