Process and system for preparing hydrogen production catalyst with micro-nano hierarchical pore channels

Abstract

The invention discloses a process and a system for preparing a hydrogen production catalyst with micro-nano hierarchical pore channels. The system comprises a conveying assembly and a forming assembly fixedly connected with the conveying assembly, the top end of the conveying assembly is provided with the stamping assembly, the material returning assembly and the feeding assembly, the conveying assembly drives the forming assembly to fill catalyst powder through the feeding assembly, the stamping assembly conducts stamping forming, and the material returning assembly unloads formed powder solid. According to the powder filling device, the connecting rope connected with the stamping assembly drives the material returning assembly to stamp and return solid formed in the forming assembly, then the conveying assembly is matched to move the forming assembly to the feeding assembly for powder filling, and the rotating base and the eccentric shaft which are arranged in a sleeving mode are driven by the transmission belt to rotate; the feeding assembly moves along the eccentric shaft through the swing arm connected with the feeding assembly so that the feeding assembly can fill the returned forming assembly with powder again, catalyst powder can be conveniently formed to be prepared into a catalyst solid to form a closed loop, and the efficiency of catalyst preparation is improved.

Description

Technical Field

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

[0002] In recent years, with the large-scale exploitation of fossil fuels, the reserves of fossil fuels on the earth are decreasing; the combustion of fossil fuels will produce a large amount of greenhouse gases, leading to the intensification of the global greenhouse effect, which will then cause a series of ecological and environmental problems; as the situation becomes increasingly severe, hydrogen energy has received more and more attention in the field of new energy due to its high energy conversion efficiency and clean and pollution-free; however, the activity and cost of anode catalysts have always restricted the large-scale application of direct fuel cells; pt and pt-based alloys are the best performing water electrolysis hydrogen production catalysts, but their prices and reserves limit their commercial applications.

[0003] For example, the Chinese patent with publication number CN216879249U and titled "A Catalyst Loading and Unloading Device for a Hydrogenation Tower in a Hydrogen Peroxide Preparation Process" includes a catalyst loading system and a catalyst unloading system, and is characterized in that the catalyst loading system includes a cantilever electric hoist, a hoisting track frame, and a catalyst loading funnel, and the cantilever electric hoist lifts the catalyst loading funnel to the catalyst loading inlet through the hoisting track frame; the catalyst unloading system includes a catalyst unloading funnel and a unloading pipeline, and the unloading pipeline is composed of a catalyst pipeline and a waste pipeline; the catalyst unloading funnel includes a funnel body and a sieve plate, the sieve plate is tiltedly arranged in the funnel body, a catalyst channel is formed above the sieve plate, and a waste channel is formed below the sieve plate, the catalyst channel is connected to the catalyst pipeline, and the waste channel is connected to the waste pipeline; the utility model changes the unloading funnel into a sieve funnel, realizes the screening of the catalyst during the unloading process, and collects the catalyst and the waste separately, saving time and labor costs, and the device needs multiple drive units to process the catalyst into a solid structure.

[0004] The shortcoming of the existing technology is that since the catalyst preparation requires punching a powdered structure into a solid structure, the catalyst powder needs to be filled into a mold and pressed and solidified with a stamping equipment, which makes the work steps cumbersome and cannot form a closed loop for the step of punching the catalyst powder into a solid, affecting the efficiency of catalyst preparation. Summary of the invention

[0005] The object of the present invention is to provide a process and system for preparing a hydrogen production catalyst with micro-nano multi-stage pores, wherein a connecting rope connected to a stamping assembly drives a material stripping assembly to stamp and strip the solid formed in a molding assembly, and then cooperates with a conveying assembly to move the molding assembly to a loading assembly for powder filling, wherein the connecting rope drives a friction wheel to rotate, and the friction wheel drives a sleeved rotating seat and an eccentric shaft to rotate through a transmission belt, so that the loading assembly moves along the eccentric shaft through the connected swing arm, so that the loading assembly re-fills the molding assembly with powder after the material is stripped, so as to form a closed loop of catalyst powder to prepare catalyst solid, thereby improving the efficiency of catalyst preparation.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A process for preparing a hydrogen production catalyst is characterized in that it includes the following steps: step 1, preparing an appropriate amount of impregnation solution, adding the prepared impregnation solution to a molded carrier, impregnating under negative pressure, and drying and roasting the impregnated carrier at an appropriate temperature to prepare a powdered catalyst; step 2, filling the dried powdered catalyst into a molding component through a loading component, and the molding component punches the powdered catalyst into a solid structure through a stamping component; step 3, unloading the catalyst with a solid structure through a material removal component to complete the collection of the solid catalyst.

[0007] A process and system for preparing a hydrogen production catalyst with micro-nano multi-level pores, including a conveying component and a molding component fixedly connected thereto; The top of the conveying assembly is respectively provided with a stamping assembly, a material removal assembly and a material loading assembly. The conveying assembly drives the forming assembly to fill the catalyst powder through the material loading assembly, the stamping assembly to perform stamping and forming, and the material removal assembly to discharge the formed powder solids. It also includes a linkage component, which is connected to the material stripping component and the material loading component for synchronous movement through the transmission during the reciprocating stroke of the stamping component, so that the material stripping component and the material loading component complete the material loading and stripping of the forming component; the linkage component includes a connecting rope, and the two ends of the connecting rope are respectively connected to the material stripping component and the stamping component, the connecting rope is frictionally connected to a friction wheel, the bottom end of the friction wheel is sleeved with a transmission belt, the end of the transmission belt away from the friction wheel is sleeved with a rotating seat, the top of the rotating seat is fixedly connected to an eccentric shaft, one end of the eccentric shaft is movably connected to a swing arm, and the swing arm is transmission-connected to the material loading component; As a further description of the above technical solution: The conveying assembly includes a mounting plate, a driving motor is fixedly connected to the inner side of the mounting plate, a belt is sleeved on the output end of the driving motor, a pulley is sleeved on the end of the belt away from the driving motor, a turntable is fixedly connected to the bottom end of the pulley, and the turntables are symmetrically arranged on both sides of the driving motor, a conveyor belt is sleeved on the outer side of the two turntables, and a forming assembly is fixedly connected to one end of the conveyor belt.

[0008] As a further description of the above technical solution: One end of the mounting plate is fixedly connected to a support rod, and the end of the support rod away from the mounting plate is fixedly connected to a rack rod, and the rack rod is adapted to the forming assembly, one end of the support rod is fixedly connected to a connecting strip, and one end of the connecting strip is fixedly connected to a directional rail, and the directional rail limits the forming assembly to move in a stable state, and the conveying assembly drives the forming assembly to rotate after it conflicts with the rack rod to cooperate with the material removal assembly to stamp and remove the material.

[0009] As a further description of the above technical solution: The stamping assembly includes a bracket, one end of the bracket is fixedly connected to 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 to a stamping block, the end of the hydraulic rod close to the stamping block is transmission-connected to a transmission assembly, one end of the transmission assembly is transmission-connected to a movable rod, and the bottom end of the movable rod is fixedly connected to a baffle.

[0010] As a further description of the above technical solution: The transmission assembly includes a limit sleeve, and a hydraulic rod and a movable rod are respectively sleeved inside the limit sleeve, a gear block is movably provided inside the limit sleeve, rack one and rack two are respectively meshed at both ends of the gear block, and rack one and rack two are respectively fixedly connected to the hydraulic rod and the movable rod, fixed ears are symmetrically fixedly connected at both ends of the limit sleeve, one end of the fixed ear is fixedly connected to the fixed rod, and the fixed rod is fixedly connected to the connecting rope.

[0011] As a further description of the above technical solution: The material return assembly includes a tripod, a slide groove is opened on the inner side of the tripod, a slider is slidably connected to the slide groove, a return spring is fixedly connected to the top of the slider, a top plate is fixedly connected to the top of the return spring, and the top plate is fixed on the tripod, a connecting rod is fixedly connected to one side of the bottom end of the slider, a material return block is fixedly connected to the bottom end of the connecting rod, and the other side of the bottom end of the slider is fixedly connected to a connecting rope.

[0012] As a further description of the above technical solution: The loading assembly includes a supporting basin, the bottom end of the supporting basin is rotatably connected to a baffle, the top end of the supporting basin is provided with a smoothing bar, the top end of the smoothing bar is fixedly connected to a material guide cover, the top end of the material guide cover is fixedly connected to an external pipe, and one end of the material guide cover is movably provided with a swing arm.

[0013] As a further description of the above technical solution: The forming assembly includes a forming cylinder, one end of the forming cylinder is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a half-toothed disc, one end of the half-toothed disc is fixedly connected to a rotating shaft rod, both ends of the rotating shaft rod are symmetrically provided with stoppers, and the stoppers are fixed on the half-toothed disc, the rotating shaft rod is fixedly connected to a U-shaped rod away from the half-toothed disc, a torsion spring is sleeved on the outer side of the rotating shaft rod, and both ends of the torsion spring are respectively fixedly connected to the U-shaped rod and the half-toothed disc.

[0014] As a further description of the above technical solution: The forming cylinder includes a cylinder wall, an extrusion plate is slidably connected to the inner side of the cylinder wall, a tension spring is fixedly connected to the bottom end of the extrusion plate, a shaping rod is passed through the extrusion plate, a fixing plate is fixedly connected to the bottom end of the shaping rod, a supporting spring is fixedly connected to the bottom end of the fixing plate, an directional rod is provided at the bottom end of the cylinder wall, a connecting rod is fixedly connected to the top end of the directional rod, and the connecting rod passes through the fixing plate and is fixed on the extrusion plate, and a resistance plate is fixedly connected to the bottom end of the connecting rod.

[0015] The present invention provides a process and system for preparing a hydrogen production catalyst with micro-nano multi-level pores, which has the following beneficial effects: In the present invention, the connecting rope connected to the stamping assembly drives the material stripping assembly to stamp and strip the solid formed in the molding assembly, and then cooperates with the conveying assembly to move the molding assembly to the loading assembly for powder filling, wherein the connecting rope drives the friction wheel to rotate, and the friction wheel drives the sleeved rotating seat and the eccentric shaft to rotate through the transmission belt, so that the loading assembly can move along the eccentric shaft through the connected swing arm, so that the loading assembly can re-fill the molding assembly with powder after the material is stripped, so as to form a closed loop of catalyst powder to prepare catalyst solid, thereby improving the efficiency of catalyst preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a hydrogen production catalyst preparation process and system with micro-nano multi-level pores proposed by the present invention; Figure 2 It is a schematic diagram of the structure of the rack rod in the present invention; Figure 3 It is a structural schematic diagram of the conveying component in the present invention; Figure 4 For the present invention Figure 3 The local schematic diagram of the A in the middle; Figure 5 It is a structural schematic diagram of the linkage assembly in the present invention; Figure 6 For the present invention Figure 5 The local schematic diagram of point B in the middle; Figure 7 It is a schematic diagram of the structure of the stamping assembly in the present invention; Figure 8It is a structural schematic diagram of the feeding assembly in the present invention; Fig. 9 It is a schematic diagram of the structure of the molding component in the present invention; Fig.10 It is a schematic diagram of the structure of the extruded plate in the present invention; Fig.11 It is a schematic structural diagram of the forming tube in the present invention.

[0017] Legend: 1. Conveying assembly; 11. Mounting plate; 12. Driving motor; 13. Belt loop; 14. Belt pulley; 15. Turntable; 16. Conveyor belt; 17. Support rod; 18. Rack rod; 19. Orienting rail; 110. Connecting strip; 111. Sliding cover plate; 2. Forming assembly; 21. Forming cylinder; 211. Cylinder wall; 212. Extrusion plate; 213. Orienting rod; 214. Fixing plate; 215. Forming rod; 216. Tension spring; 217. Support spring; 218. Connecting rod; 219. Contact plate; 22. Connecting rod; 23. Half toothed disk; 24. Stopper; 25. Torsion spring; 26. Rotating shaft rod; 27. U-shaped rod; 28. Rectangular frame; 29. ​​Bolt rod; 210. Clamping strip; 201. Extrusion column; 202. Turning ball; 3. Stamping assembly; 31. Bracket; 32. Transmission wheel one; 33. Transmission wheel two; 34. Hydraulic cylinder; 35. Hydraulic rod; 36. Stamping block; 37. Transmission assembly; 371. Limit sleeve; 372. Fixed ear; 373. Fixed 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 withdrawal assembly; 51. Tripod; 52. Slide; 53. Top plate; 54. Reset spring; 55. Slider; 56. Linkage rod; 57. Material withdrawal block; 58. Transmission wheel three; 6. Loading assembly; 61. Loading basin; 62. Baffle; 63. Material guide cover; 64. Smoothing strip; 65. External pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] A process for preparing a hydrogen production catalyst, characterized in that it comprises the following steps: Step 1: prepare an appropriate amount of impregnation solution, add the prepared impregnation solution into the formed carrier, impregnate under negative pressure, dry and calcine the impregnated carrier at an appropriate temperature to prepare a powdered catalyst; Step 2: The dried powdered catalyst is loaded into the forming component 2 through the feeding component 6, and the forming component 2 punches the powdered catalyst into a solid structure through the punching component 3; Step 3: The catalyst in a solid structure is discharged through the material removal assembly 5 to complete the collection of the solid catalyst.

[0020] Reference Figure 1-11 A process and system for preparing a hydrogen production catalyst with micro-nano multi-stage pores, comprising a conveying component 1 and a forming component 2 fixedly connected thereto; a stamping component 3, a material removal component 5 and a material loading component 6 are respectively arranged at the top of the conveying component 1, the conveying component 1 drives the forming component 2 to fill the catalyst powder through the material loading component 6, the stamping component 3 performs stamping and forming, and the material removal component 5 discharges the formed powder solid; and further comprising a linkage component 4, which is driven by the stamping component 3 in the reciprocating stroke to connect the material removal component 5 and the material loading component 6 to move synchronously The linkage assembly 4 includes a connecting rope 41, and the two ends of the connecting rope 41 are respectively connected to the material stripping assembly 5 and the stamping assembly 3, the connecting rope 41 is frictionally connected to a friction wheel 42, the bottom end of the friction wheel 42 is sleeved with a transmission belt 43, the end of the transmission belt 43 away from the friction wheel 42 is sleeved with a rotating seat 44, the top of the rotating seat 44 is fixedly connected to an eccentric shaft 45, one end of the eccentric shaft 45 is movably connected to a swing arm 46, and the swing arm 46 is transmission-connected to the material stripping assembly 6; Specifically, the conveying assembly 1 drives the forming assembly 2 fixedly connected to its array to move in an approximately elliptical runway structure. The conveying assembly 1 is respectively provided with a stamping assembly 3, a material return assembly 5 and a material loading assembly 6. The stamping assembly 3 and the material return assembly 5 are symmetrically distributed at both ends of the conveying assembly 1. The material loading assembly 6 is arranged at the outlet end of the forming assembly 2 of the material return assembly 5, and is respectively fixedly connected to the stamping assembly 3 and the material return assembly 5 through the connecting rope 41 in the linkage assembly 4. When the stamping assembly 3 drives the forming assembly 2 to move to the stamping position with respect to the conveying assembly 1, the stamping assembly 3 stamps the powder in the forming assembly 2 into a solid structure, which is operated to the material return assembly 5 through the conveying assembly 1, and is then pressed through the stamping assembly 3. During the reciprocating stroke of punching the forming component 2, the connecting rope 41 connected to the punching component 3 drives the material removal component 5 to punch and remove the solid formed in the forming component 2, and then cooperates with the conveying component 1 to move the forming component 2 to the loading component 6 for powder filling, wherein the connecting rope 41 drives the friction wheel 42 to rotate, and the friction wheel 42 drives the sleeved rotating seat 44 and the eccentric shaft 45 to rotate through the transmission belt 43, so that the loading component 6 moves along the eccentric shaft 45 through the connected swing arm 46, so that the loading component 6 re-fills the powder of the forming component 2 after the material is removed, so as to form a closed loop of preparing the catalyst powder into the catalyst solid, thereby improving the efficiency of catalyst preparation; The conveying assembly 1 includes a mounting plate 11, a driving motor 12 is fixedly connected to the inner side of the mounting plate 11, a belt loop 13 is sleeved on the output end of the driving motor 12, a pulley 14 is sleeved on the end of the belt loop 13 away from the driving motor 12, a turntable 15 is fixedly connected to the bottom end of the pulley 14, and the turntables 15 are symmetrically arranged on both sides of the driving motor 12, a conveyor belt 16 is sleeved on the outer side of the two turntables 15, and one end of the conveyor belt 16 is fixedly connected to the forming assembly 2; a support rod 17 is fixedly connected to one end of the mounting plate 11, a rack rod 18 is fixedly connected to the end of the support rod 17 away from the mounting plate 11, and the rack rod 18 is adapted to the forming assembly 2, a connecting strip 110 is fixedly connected to one end of the support rod 17, and a directional rail 19 is fixedly connected to one end of the connecting strip 110, 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 after it conflicts with the rack rod 18 to cooperate with the material removal assembly 5 to stamp and remove the material; Specifically, the mounting plate 11 in the conveying assembly 1 is fixedly connected to a driving motor 12, and the driving motor 12 drives the turntable 15 fixedly connected to the pulley 14 to rotate through the belt ring 13, so that the conveyor belt 16 sleeved on the outer side of the turntable 15 drives the forming assembly 2 to move under the drive of the driving motor 12, and the rack rod 18 located on one side of the mounting plate 11 and fixedly connected through the support rod 17 is arranged at the truncation of the directional rail 19, and the truncation of the directional rail 19 is filled by the rack rod 18, so that the forming assembly 2 is driven by the conveying assembly 1 to separate from the truncation of the directional rail 19, and at the same time, the forming assembly 2 rotates after contacting with the rack rod 18, so as to flip the forming assembly 2, so that the material removal assembly 5 can remove the flipped forming assembly 2, thereby improving the convenience of material removal of the device; The stamping assembly 3 includes a bracket 31, one end of the bracket 31 is fixedly connected to 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 to a stamping block 36, the end of the hydraulic rod 35 close to the stamping block 36 is connected to a transmission assembly 37, one end of the transmission assembly 37 is connected to a movable rod 38, and the bottom end of the movable rod 38 is fixedly connected to a baffle 39; the transmission assembly 37 includes a limit sleeve 371, and the limit sleeve 371 is respectively provided with a plurality of There are hydraulic rod 35 and movable rod 38, a gear block 374 is movably provided inside the limiting sleeve 371, two ends of the gear block 374 are respectively meshed with rack 1 375 and rack 2 376, and rack 1 375 and rack 2 376 are respectively fixedly connected to the hydraulic rod 35 and the movable rod 38, two ends of the limiting sleeve 371 are symmetrically fixedly connected with fixed ears 372, one end of the fixed ear 372 is fixedly connected with a fixed rod 373, and the fixed rod 373 is fixedly connected to the connecting rope 41; Specifically, the bracket 31 in the stamping assembly 3 is fixed on the sliding cover plate 111, and the sliding cover plate 111 is fixed on the mounting plate 11 through a cross arm. The sliding cover plate 111 limits the forming assembly 2 and reduces the friction between the forming assembly 2 and the sliding cover plate 111 through the rotating ball 202. The hydraulic cylinder 34 fixedly connected to the bracket 31 drives the hydraulic rod 35 to move in a directional manner. The stamping block 36 fixedly connected to the bottom end of the hydraulic rod 35 moves downward. A transmission assembly 37 is provided at the hydraulic rod 35 near the stamping block 36. The two ends of the gear block 374 in the transmission assembly 37 are respectively meshed with a rack 1 375 and a rack 2 376, and the rack 1 375 and the rack 2 376 are meshed. 76 are respectively fixedly connected to the hydraulic rod 35 and the movable rod 38. When the hydraulic rod 35 moves downward, the movable rod 38 engaged with the gear block 374 drives the baffle 39 fixedly connected at the bottom to move upward, so that the punching block 36 and the baffle 39 can clamp and shape the powder in the molding component 2, so as to keep the molding component 2 in a fixed position in the conveying component 1 and improve the stability of the molding component 2. The bracket 31 is vertically symmetrically provided with a transmission wheel 1 32 and a transmission wheel 2 33. A connecting rope 41 is wound around the transmission wheel 1 32 and the transmission wheel 2 33, so that the hydraulic rod 35 can drive the material removal component 5 to move downward through the connecting rope 41; The material-removing assembly 5 comprises a tripod 51, a slide groove 52 is provided inside the tripod 51, a slider 55 is slidably connected to the slide groove 52, a return spring 54 is fixedly connected to the top of the slider 55, a top plate 53 is fixedly connected to the top of the return spring 54, and the top plate 53 is fixed to the tripod 51, a linkage rod 56 is fixedly connected to one side of the bottom end of the slider 55, a material-removing block 57 is fixedly connected to the bottom end of the linkage rod 56, and the other side of the bottom end of the slider 55 is fixedly connected to the connecting rope 41; Specifically, the tripod 51 in the material-removing assembly 5 is a right-angled triangle structure, and a slider 55 is slidably connected in a slide groove 52 opened in the tripod 51. When the stamping assembly 3 is in a stamping stroke, the hydraulic rod 35 drives the slider 55 to move downward along the slide groove 52 through the connecting rope 41, and the material-removing block 57 fixedly connected at the bottom end of the slider 55 squeezes the catalyst solid in the molding assembly 2 to fall off. At the same time, the return spring 54 fixedly connected at the top end of the slider 55 is stressed during the downward movement of the slider 55. The transmission wheel 3 58 arranged at the bottom end of the tripod 51 is used to limit the position of the connecting rope 41. When the stamping assembly 3 is in a directional reset stroke, the slider 55 is reset under the elastic action of the return spring 54, so that the material-removing assembly 5 and the stamping assembly 3 can move synchronously, which is convenient for the stamping assembly 3 and the material-removing assembly 5 to improve the efficiency of catalyst processing; The loading assembly 6 includes a bearing basin 61, the bottom of the bearing basin 61 is rotatably connected to a baffle 62, the top of the bearing basin 61 is provided with a smoothing bar 64, the top of the smoothing bar 64 is fixedly connected to a material guide cover 63, the top of the material guide cover 63 is fixedly connected to an external pipe 65, and one end of the material guide cover 63 is movably provided with a swing arm 46; Specifically, the supporting basin 61 in the loading component 6 is of a rectangular structure. When the baffle plate 62 rotatably connected at the bottom of the supporting basin 61 is filling the powder into the molding component 2, the notch at the bottom of the supporting basin 61 is in an open state. When the molding component 2 moves under the drive of the conveying component 1, the baffle plate 62 moves synchronously with the molding component 2, and the baffle plate 62 closes the notch at the bottom of the supporting basin 61, so that the device automatically opens and closes after powder filling, thereby improving the convenience of the device when used. The material guide cover 63 arranged at the top of the supporting basin 61 reciprocates along the supporting basin 61 through the swing arm 46, so that the smoothing strip 64 fixedly connected at the bottom of the material guide cover 63 smoothes the powder filled in the molding component 2, thereby improving the efficiency of powder filling. The tripod 51 and the bracket 31 are fixedly connected by the positioning plate 47 to maintain the stability of the tripod 51 and the bracket 31. The forming assembly 2 includes a forming cylinder 21, one end of the forming cylinder 21 is fixedly connected to a connecting rod 22, one end of the connecting rod 22 is fixedly connected to a half toothed disc 23, one end of the half toothed disc 23 is fixedly connected to a rotating shaft rod 26, two ends of the rotating shaft rod 26 are symmetrically provided with stoppers 24, and the stoppers 24 are fixed on the half toothed disc 23, the rotating shaft rod 26 is fixedly connected to a U-shaped rod 27 away from the half toothed disc 23, a torsion spring 25 is sleeved on the outer side of the rotating shaft rod 26, and the two ends of the torsion spring 25 are respectively fixedly connected to the U-shaped rod 27 and the half toothed disc 23; the forming cylinder 21 includes a cylinder wall 211, An extrusion plate 212 is slidably connected to the inner side of the cylinder wall 211, and a tension spring 216 is fixedly connected to the bottom end of the extrusion plate 212. A shaping rod 215 is passed through the extrusion plate 212, and a fixing plate 214 is fixedly connected to the bottom end of the shaping rod 215, and a support spring 217 is fixedly connected to the bottom end of the fixing plate 214. An orientation rod 213 is provided at the bottom end of the cylinder wall 211, and a connecting rod 218 is fixedly connected to the top end of the orientation rod 213, and the connecting rod 218 passes through the fixing plate 214 and is fixed on the extrusion plate 212, and a contact plate 219 is fixedly connected to the bottom end of the connecting rod 218; Specifically, the forming cylinder 21 in the forming assembly 2 is a hollow cylindrical structure. After the half-toothed disc 23 fixedly connected at one end of the forming cylinder 21 contacts the rack rod 18, the half-toothed disc 23 drives the forming cylinder 21 to flip around the rotating shaft rod 26. The rectangular frame 28 fixedly connected at one end of the U-shaped rod 27 clamps the conveyor belt 16. The clamping strip 210 is driven by the rotating bolt rod 29 to clamp the conveyor 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 conveyor belt 16. Secondly, an extrusion plate 212 is slidably connected to the cylinder wall 211 of the forming cylinder 21. A shaping rod 215 penetrating the extrusion plate 212 is used to form a notch for the built-in catalyst solid. The plane at the top of the shaping rod 215 is flush with the top surface of the cylinder wall 211, and its bottom end is A support spring 217 is fixedly connected for resetting, a connecting rod 218 and a directional rod 213 fixedly connected to the bottom end of the extrusion plate 212 are used to support the extrusion plate 212 to move along the cylinder wall 211, and a tension spring 216 fixedly connected at the bottom end of the extrusion plate 212 is used to reset the initial position of the extrusion plate 212. When the stamping block 36 and the baffle plate 39 in the stamping assembly 3 move toward each other, the stamping block 36 moves downward against the shaping rod 215, and the baffle plate 39 drives the extrusion plate 212 fixedly connected to the contact plate 219 to move upward, so that the powder in the cylinder wall 211 can be extruded and solidified. When the cylinder wall 211 is turned over, the contact plate 219 is squeezed by the material return block 57 to drive the fixedly connected extrusion plate 212 to move, so as to facilitate the unloading of the fixed catalyst formed in the cylinder wall 211.

[0021] Working principle: The conveying component 1 is respectively provided with a stamping component 3, a material return component 5 and a material loading component 6. The stamping component 3 and the material return component 5 are symmetrically distributed at both ends of the conveying component 1. The material loading component 6 is arranged at the outlet end of the forming component 2 of the material return component 5, and is fixedly connected to the stamping component 3 and the material return component 5 through the connecting rope 41 in the linkage component 4. When the stamping component 3 drives the forming component 2 to move to the stamping position with respect to the conveying component 1, the stamping component 3 stamps the powder in the forming component 2 into a solid structure, which is operated to the material return component 5 through the conveying component 1. During the reciprocating stroke of the stamping component 3 stamping the forming component 2, the powder is stamped. The connecting rope 41 connected to the pressing component 3 drives the material removal component 5 to press and remove the solid formed in the forming component 2, and then cooperates with the conveying component 1 to move the forming component 2 to the loading component 6 for powder filling, wherein the connecting rope 41 drives the friction wheel 42 to rotate, and the friction wheel 42 drives the sleeved rotating seat 44 and the eccentric shaft 45 to rotate through the transmission belt 43, so that the loading component 6 can move along the eccentric shaft 45 through the connected swing arm 46, so that the loading component 6 can re-fill the powder of the forming component 2 after the material is removed, so as to form a closed loop of catalyst powder preparation into catalyst solid, thereby improving the efficiency of catalyst preparation.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A process for preparing a hydrogen production catalyst, characterized in that: The method comprises the following steps: step 1, preparing an appropriate amount of impregnation solution, adding the prepared impregnation solution into the molded carrier, impregnating under negative pressure, drying and calcining the impregnated carrier at an appropriate temperature to prepare a powdered catalyst; step 2, filling the dried powdered catalyst into a molding component through a loading component, and the molding component punches the powdered catalyst into a solid structure through a stamping component; step 3, unloading the catalyst into a solid structure through a material removal component, and completing the collection of the solid catalyst.

2. A hydrogen production catalyst preparation system with micro-nano multi-level pores, characterized in that: To realize the hydrogen production catalyst preparation process as claimed in claim 1, comprising a conveying component (1) and a forming component (2) fixedly connected thereto; The top of the conveying component (1) is respectively provided with a punching component (3), a material removal component (5) and a material loading component (6); the conveying component (1) drives the forming component (2) to fill the catalyst powder via the material loading component (6), the punching component (3) to perform punching and forming, and the material removal component (5) to discharge the formed powder solid; The invention also comprises a linkage component (4), wherein the linkage component (4) is connected to the material removal component (5) and the material loading component (6) for synchronous movement through transmission during the reciprocating stroke of the punching component (3), so that the material removal component (5) and the material loading component (6) complete the loading and unloading of the forming component (2); the linkage component (4) comprises a connecting rope (41), and the two ends of the connecting rope (41) are respectively connected to the material removal component (5) and the punching component (3), the connecting rope (41) is frictionally connected to a friction wheel (42), the bottom end of the friction wheel (42) is sleeved with a transmission belt (43), the 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 to an eccentric shaft (45), one end of the eccentric shaft (45) is movably connected to a swing arm (46), and the swing arm (46) is transmission-connected to the material loading component (6).

3. A hydrogen production catalyst preparation system with micro-nano multi-level pores according to claim 2, characterized in that: The conveying assembly (1) comprises a mounting plate (11), a driving motor (12) is fixedly connected to the inner side of the mounting plate (11), a belt (13) is sleeved on the output end of the driving motor (12), a pulley (14) is sleeved on the end of the belt (13) away from the driving motor (12), a turntable (15) is fixedly connected to the bottom end of the pulley (14), and the turntables (15) are symmetrically arranged on both sides of the driving motor (12), a conveying belt (16) is sleeved on the outer side of the two turntables (15), and one end of the conveying belt (16) is fixedly connected to the forming assembly (2).

4. A hydrogen production catalyst preparation system with micro-nano multi-level pores according to claim 3, characterized in that: One end of the mounting plate (11) is fixedly connected to a support rod (17), one end of the support rod (17) away from the mounting plate (11) is fixedly connected to a rack rod (18), and the rack rod (18) is adapted to the forming component (2), one end of the support rod (17) is fixedly connected to a connecting bar (110), one end of the connecting bar (110) is fixedly connected to a directional rail (19), and the directional rail (19) limits the forming component (2) to move in a stable state, and the conveying component (1) drives the forming component (2) to rotate after contacting with the rack rod (18) to cooperate with the material removal component (5) to stamp and remove the material.

5. The system for preparing a hydrogen production catalyst with micro-nano multi-level pores according to claim 2, characterized in that: The punching assembly (3) comprises a bracket (31), one end of the bracket (31) is fixedly connected to 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 to a punching block (36), one end of the hydraulic rod (35) close to the punching block (36) is drivingly connected to a transmission assembly (37), one end of the transmission assembly (37) is drivingly connected to a movable rod (38), and the bottom end of the movable rod (38) is fixedly connected to a baffle (39).

6. A hydrogen production catalyst preparation system with micro-nano multi-level pores according to claim 5, characterized in that: The transmission assembly (37) comprises a limiting sleeve (371), and the limiting sleeve (371) is respectively sleeved with a hydraulic rod (35) and a movable rod (38), a gear block (374) is movably provided inside the limiting sleeve (371), two ends of the gear block (374) are respectively meshed with a rack 1 (375) and a rack 2 (376), and the rack 1 (375) and the rack 2 (376) are respectively fixedly connected to the hydraulic rod (35) and the movable rod (38), two ends of the limiting sleeve (371) are symmetrically fixedly connected with fixing ears (372), one end of the fixing ear (372) is fixedly connected with a fixing rod (373), and the fixing rod (373) is fixedly connected to the connecting rope (41).

7. The system for preparing hydrogen production catalyst with micro-nano multi-level pores according to claim 2, characterized in that: The material return assembly (5) comprises a tripod (51), a slide groove (52) is provided inside the tripod (51), a slider (55) is slidably connected to the slide groove (52), a top end of the slider (55) is fixedly connected to a return spring (54), a top end of the return spring (54) is fixedly connected to a top plate (53), and the top plate (53) is fixed on the tripod (51), a bottom end of the slider (55) is fixedly connected to a linkage rod (56), a bottom end of the linkage rod (56) is fixedly connected to a material return block (57), and the other bottom end of the slider (55) is fixedly connected to a connecting rope (41).

8. The system for preparing hydrogen production catalyst with micro-nano multi-level pores according to claim 2, characterized in that: The loading assembly (6) comprises a supporting basin (61), the bottom end of the supporting basin (61) is rotatably connected to a baffle plate (62), the top end of the supporting basin (61) is provided with a smoothing strip (64), the top end of the smoothing strip (64) is fixedly connected to a material guide cover (63), the top end of the material guide cover (63) is fixedly connected to an external pipe (65), and one end of the material guide cover (63) is movably provided with a swing arm (46).

9. The system for preparing a hydrogen production catalyst with micro-nano multi-level pores according to claim 2, characterized in that: The molding assembly (2) comprises a molding cylinder (21), one end of the molding cylinder (21) is fixedly connected to a connecting rod (22), one end of the connecting rod (22) is fixedly connected to a half toothed disc (23), one end of the half toothed disc (23) is fixedly connected to a rotating shaft rod (26), two ends of the rotating shaft rod (26) are symmetrically provided with stoppers (24), and the stoppers (24) are fixed to the half toothed disc (23), the rotating shaft rod (26) is fixedly connected to a U-shaped rod (27) away from the half toothed disc (23), the outer side of the rotating shaft rod (26) is sleeved with a torsion spring (25), and two ends of the torsion spring (25) are respectively fixedly connected to the U-shaped rod (27) and the half toothed disc (23).

10. A hydrogen production catalyst preparation system with micro-nano multi-level pores according to claim 9, characterized in that: The forming cylinder (21) comprises a cylinder wall (211), the inner side of which is slidably connected to an extrusion plate (212), the bottom end of which is fixedly connected to a tension spring (216), a shaping rod (215) passing through the extrusion plate (212), the bottom end of which is fixedly connected to a fixing plate (214), the bottom end of which is fixedly connected to a support spring (217), an orientation rod (213) being provided at the bottom end of the cylinder wall (211), the top end of which is fixedly connected to a connecting rod (218), the connecting rod (218) passing through the fixing plate (214) and being fixed to the extrusion plate (212), the bottom end of which is fixedly connected to a contact plate (219).

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