Hydrogen production system based on waste denitration catalyst as ceramic carrier

Abstract

The invention discloses a hydrogen production system based on a waste denitration catalyst as a ceramic carrier, and relates to the technical field of hydrogen production catalysts.The hydrogen production system comprises a shell, two granulation rollers are arranged on the shell, a transverse frame is arranged on the shell in a sliding mode, a plurality of screen rollers are rotationally arranged on the transverse frame, and long holes are formed in the two sides of the transverse frame; the driving assembly is used for driving the transverse racks to slide in a reciprocating manner when the two granulation rollers are driven to rotate relatively for granulation; while the driving assembly drives the granulation roller to rotate relatively for granulation, the transverse frame is driven to drive the screen drum to slide in a reciprocating manner, when the screen drum slides in a reciprocating manner, the screen roller rubs particles, so that the particles are separated from powder adhered to the particles, and when the transverse frame slides, the rotating rod drives the screen roller to rotate through the one-way rotating assembly, so that the particles are separated from the powder adhered to the particles. When the screen roller rotates, powder can fall down, and the screen roller can be matched with a fixed cleaning rod to clean the powder adhering to the screen roller.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen production catalysts, and in particular to a hydrogen production system based on waste denitration catalysts as ceramic carriers. Background Art

[0002] With the continuous development of society, the demand for petroleum fossil fuels is increasing. However, the extensive use of fossil fuels has led to serious environmental pollution and global warming. At the same time, the reserves of fossil fuels are limited, so the search for renewable green energy has become a hot topic in today's research. Hydrogen energy has the characteristics of being renewable, highly utilized and widely available, and is an ideal energy source to replace fossil fuels.

[0003] In the process of hydrogen production, ceramic catalysts are generally required. Ceramic carriers are a material used to support catalysts. They are generally porous ceramic materials with high chemical inertness and thermal stability. They can also provide a controllable pore structure, thereby improving the activity and selectivity of the catalyst. They are used to increase the molecular diffusion rate of the reaction substrate and the catalytic reaction rate.

[0004] The waste de-oxidized catalyst is used as a ceramic carrier after crushing, ball milling, batching, granulation, molding and calcination, and is combined with the catalyst to produce hydrogen. In the above process, the powder after batching needs to be granulated, that is, the fine powder is made into particles with a certain diameter, which can effectively avoid the occurrence of voids, loose corners and cracks in the subsequent molding process.

[0005] The granulation process is generally completed by a granulator. When the granulator is granulating, a certain amount of powder will adhere to the granules after granulation, which not only reduces the granulation efficiency, but also the powder adhered to the granules will separate from the granules during the production transfer process, which not only causes waste of powder, but also pollutes the production environment. Even if the generated particles are filtered through a filter, it is difficult to effectively separate the particles from the powder. Summary of the invention

[0006] The purpose of the present invention is to provide a hydrogen production system based on waste denitration catalyst as a ceramic carrier to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: A hydrogen production system based on a waste denitration catalyst as a ceramic carrier, comprising a shell, two granulation rollers are arranged on the shell, a horizontal frame is slidably arranged on the shell, a plurality of sieve rollers are rotatably arranged on the horizontal frame, and long holes are arranged on both sides of the horizontal frame; It also includes a driving assembly, which drives the two granulating rollers to rotate relative to each other to make granules, so that the horizontal frames slide back and forth; It also includes a one-way rotating assembly, which is used to drive the screen roller to rotate when sliding between the horizontal frames, so that the screen roller and the particles produce friction, and the particles and powder are separated; The one-way rotating assembly comprises a plurality of rotating rods rotatably arranged on a transverse frame, the plurality of rotating rods corresponding to a plurality of screen rollers one by one, a ratchet ring fixedly arranged on the rotating rod, a ratchet block rotatably arranged on the screen roller, a torsion spring arranged between the ratchet block and the screen roller, and the ratchet block is engaged and connected with the ratchet ring; A plurality of cleaning rods are fixedly arranged on the transverse frame, and the plurality of cleaning rods correspond to and fit with the plurality of screen rollers one by one.

[0008] Preferably, a sliding plate is slidably provided on the transverse frame, a plurality of lifting rods are rotatably provided on the sliding plate, the plurality of lifting rods correspond one to one with a plurality of rotating rods, a guide pin is fixedly provided on the lifting rod, and the guide pin is rotatably connected with the rotating rod.

[0009] Preferably, a guide groove is provided on the transverse frame, and the guide pin is slidably arranged in the guide groove.

[0010] Preferably, a steel wire rope is provided between the sliding plate and the housing, and two ends of the steel wire rope are fixedly connected to the sliding plate and the housing respectively.

[0011] Preferably, a spring is provided between the sliding plate and the transverse frame, and two ends of the spring are fixedly connected to the sliding plate and the transverse frame respectively; The spring is a tension spring.

[0012] Preferably, an isolation cylinder is fixedly provided on the transverse frame, and a powder discharge pipe is slidably provided on the isolation cylinder.

[0013] Preferably, the powder discharge pipe is fixedly connected to the shell, a baffle is fixedly provided on the powder discharge pipe, and the baffle is slidably and sealingly connected to the isolation cylinder.

[0014] Preferably, a fixing plate is fixedly provided on the shell, the driving assembly includes a connecting frame slidably provided on the fixing plate, an eccentric rod is rotatably provided on the fixing plate, a protrusion is fixedly provided on the eccentric rod, a sliding groove is provided on the connecting frame, and the protrusion is slidably provided in the sliding groove.

[0015] Preferably, a first pulley is fixedly provided on the eccentric rod, and a second pulley is fixedly provided on one of the granulating rollers; A first gear is fixedly arranged on the other granulating roller, a second gear is rotatably arranged on the housing, the first gear is meshed with the second gear for transmission, and a third pulley is fixedly arranged on the second gear; A belt is arranged between the first pulley, the second pulley and the third pulley for transmission.

[0016] Preferably, a driving motor is fixedly arranged on the fixing plate, and a motor shaft of the driving motor is fixedly connected to the eccentric rod.

[0017] In the above technical solution, the hydrogen production system based on the waste denitration catalyst as a ceramic carrier provided by the present invention has the beneficial effects: The driving assembly drives the granulating roller to rotate relatively to granulate, and drives the horizontal frame to slide back and forth with the screen drum. When the screen drum slides back and forth, friction occurs between the screen roller and the particles, so that the particles and the powder adhering to the particles are separated. When the horizontal frame slides, the rotating rod drives the screen roller to rotate through the one-way rotating assembly. When the screen roller rotates, it can not only make the powder fall, but also cooperate with the fixed cleaning rod to clean the powder adhering to the screen roller itself, so as to effectively avoid the powder adhering to the particles formed by granulation.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A front schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the reverse side of the overall structure provided by an embodiment of the present invention; Figure 3 A front cross-sectional view provided for an embodiment of the present invention; Figure 4 A schematic diagram of the upper structure of the horizontal rack provided in an embodiment of the present invention; Figure 5 A schematic diagram of the lower structure of the horizontal frame provided in an embodiment of the present invention; Figure 6 A side cross-sectional view of a transverse frame and a partial cross-sectional view of a rotating rod provided in an embodiment of the present invention; Figure 7 A schematic diagram of the structure of a drive assembly provided in an embodiment of the present invention; Figure 8 A schematic diagram of the bottom structure of the isolation cylinder provided in an embodiment of the present invention.

[0021] Description of reference numerals: 1. Shell; 11. Feed inlet; 12. Granulation outlet; 13. Granulation roller; 2. Horizontal frame; 21. Long hole; 22. Cleaning rod; 23. Guide groove; 3. Screen roller; 31. Ratchet block; 4. Sliding plate; 41. Lifting rod; 42. Guide pin; 43. Rotating rod; 44. Ratchet ring; 45. Spring; 46. Wire rope; 5. Connecting frame; 51. Slide groove; 6. Isolation cylinder; 61. Powder discharge pipe; 62. Baffle; 7. Fixed plate; 71. Eccentric rod; 72. Bump; 73. First pulley; 74. Second pulley; 75. Third pulley; 76. Belt; 8. First gear; 81. Second gear; 9. Driving motor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0023] Please refer to 1-8, a hydrogen production system based on a waste denitration catalyst as a ceramic carrier, including a shell 1, two granulation rollers 13 are arranged on the shell 1, a transverse frame 2 is slidably arranged on the shell 1, a plurality of screen rollers 3 are rotatably arranged on the transverse frame 2, and long holes 21 are arranged on both sides of the transverse frame 2; it also includes a driving component, when driving the two granulation rollers 13 to rotate relative to each other for granulation, the transverse frames 2 are reciprocated; it also includes a one-way rotating component, which is used to drive the screen rollers 3 to rotate when sliding between the transverse frames 2, so that the screen rollers 3 and the particles produce friction, and the particles are separated from the powder; the one-way rotating component includes a rotating A plurality of rotating rods 43 are arranged on the horizontal frame 2, and the plurality of rotating rods 43 correspond to the plurality of sieve rollers 3 one by one. A ratchet ring 44 is fixedly arranged on the rotating rod 43, and a ratchet block 31 is rotatably arranged on the sieve roller 3. A torsion spring is arranged between the ratchet block 31 and the sieve roller 3, and the ratchet block 31 is engaged and connected with the ratchet ring 44; a plurality of cleaning rods 22 are fixedly arranged on the horizontal frame 2, and the plurality of cleaning rods 22 correspond to the plurality of sieve rollers 3 one by one and fit together. When the driving component drives the two granulating rollers 13 to rotate relative to each other, when the powder is granulated, the granulated particles fall onto the sieve roller 3, and while the granulating roller 13 rotates, the horizontal frame The frame 2 slides back and forth with the screen roller 3. When the screen roller 3 moves back and forth, it rubs against the particles on the screen roller 3 to separate the particles from the powder adhering to the particles, and the separated powder falls from the gap between the screen rollers 3. When the screen roller 3 slides back and forth with the horizontal frame 2, the particles on the screen roller 3 move to the long holes 21 on both sides of the screen roller 3 and fall through the long holes 21. The screen roller 3 can be suitable for a variety of particle sizes and can separate and screen the powder adhering to the particles. At the same time, when the horizontal frame 2 slides with the screen roller 3, the rotating rod 43 rotates and passes through the ratchet ring The engagement of 44 with the ratchet block 31 drives the sieve roller 3 to rotate, and when the rotating rod 43 rotates in the opposite direction to reset, under the action of the torsion spring, the sieve roller 3 will not be rotated with it, so that when the horizontal frame 2 slides back and forth with the sieve roller 3, the sieve roller 3 will rotate unidirectionally. When the sieve roller 3 rotates, it can not only improve the effect of screening and separating the powder, but also through the rotation of the sieve roller 3, the cleaning rod 22 can scrape off the powder adhering to the sieve roller 3, so as to prevent the powder adhering to the sieve roller 3 and reduce the friction between the sieve roller 3 and the particles, so as to ensure the effect of the sieve roller 3 to separate the powder on the particles.

[0024] A sliding plate 4 is slidably arranged on the transverse frame 2, and a plurality of lifting rods 41 are rotatably arranged on the sliding plate 4, and the plurality of lifting rods 41 correspond to a plurality of rotating rods 43 one by one. A guide pin 42 is fixedly arranged on the lifting rod 41, and the guide pin 42 is rotatably connected with the rotating rod 43. Specifically, when the sliding plate 4 slides, it slides with the lifting rod 41, and the lifting rod 41 is lifted and lowered while sliding. The lifting rod 41 drives the rotating rod 43 to rotate through the guide pin 42, thereby rotating the screen roller 3 through the ratchet ring 44 and the ratchet block 31, that is, the rotating rod 43 is reciprocated by the reciprocating sliding of the sliding plate 4, thereby completing the unidirectional rotation of the screen roller 3.

[0025] In an embodiment further provided by the present invention, a guide groove 23 is provided on the transverse frame 2, and a guide pin 42 is slidably provided in the guide groove 23. When the lifting rod 41 slides along with the sliding plate 4, the guide pin 42 slides in the guide groove 23, so that the rotating rod 43 rotates more stably, thereby improving the rotation stability of the screen roller 3.

[0026] Furthermore, a steel wire rope 46 is arranged between the sliding plate 4 and the shell 1, and two ends of the steel wire rope 46 are fixedly connected to the sliding plate 4 and the shell 1 respectively; a spring 45 is arranged between the sliding plate 4 and the transverse frame 2, and two ends of the spring 45 are fixedly connected to the sliding plate 4 and the transverse frame 2 respectively; the spring 45 is a tension spring, and when the transverse frame 2 slides, the sliding plate 4 is pulled by the steel wire rope 46 to make the sliding plate 4 slide and stretch the spring 45, and when the transverse frame 2 slides in the reverse direction, the steel wire rope 46 is relaxed, and the spring 45 pulls the sliding plate 4 to slide and reset, so that when the transverse frame 2 slides, the reciprocating sliding of the sliding plate 4 can be completed through the cooperation of the steel wire rope 46 and the spring 45, and the rotation of the screen roller 3 is completed, thereby improving the effect of the screen roller 3 on separating the powder on the particles.

[0027] Furthermore, an isolation cylinder 6 is fixedly provided on the transverse frame 2, and a powder discharge pipe 61 is slidably provided on the isolation cylinder 6. The powder adhering to the particles is separated by the sieve rollers 3, and the powder falls into the isolation cylinder 6 from the gaps between the sieve rollers 3, and the powder adhering to the sieve rollers 3 is scraped off by the cleaning rod 22 and also falls into the isolation cylinder 6. The powder falling into the isolation cylinder 6 can be discharged through the powder discharge pipe 61.

[0028] In an embodiment further provided by the present invention, a powder discharge pipe 61 is fixedly connected to the shell body 1, and a baffle 62 is fixedly provided on the powder discharge pipe 61, and the baffle 62 is slidably and sealingly connected to the isolation cylinder 6, and the isolation cylinder 6 slides back and forth along the horizontal frame 2, so that the powder in the isolation cylinder 6 moves along the inclined surface of the bottom toward the position of the powder discharge pipe 61, and is discharged through the powder discharge pipe 61. It should be noted that the powder discharge pipe 61 is fixedly connected to the shell body 1, so that the powder is more stable during the discharge process, and under the action of the baffle 62, the fixed powder discharge pipe 61 discharges the powder in the sliding isolation cylinder 6 without being affected by the reciprocating sliding of the isolation cylinder 6, thereby avoiding the phenomenon of powder leakage between the isolation cylinder 6 and the powder discharge pipe 61, and at the same time, the efficiency of the isolation cylinder 6 in discharging powder can be improved.

[0029] In the embodiment provided by the present invention, a fixed plate 7 is fixedly provided on the shell 1, and the driving assembly includes a connecting frame 5 slidably provided on the fixed plate 7, an eccentric rod 71 is rotatably provided on the fixed plate 7, a protrusion 72 is fixedly provided on the eccentric rod 71, a slide groove 51 is provided on the connecting frame 5, and the protrusion 72 is slidably provided in the slide groove 51. When the eccentric rod 71 rotates, the connecting frame 5 slides back and forth through the cooperation between the protrusion 72 and the slide groove 51, thereby driving the horizontal frame 2 to slide back and forth to separate the powder on the particles. The connecting frame 5 is slidably provided between the fixed plate 7 and the shell 1, so that the connecting frame 5 is more stable when sliding.

[0030] Specifically, a first pulley 73 is fixedly provided on the eccentric rod 71, a second pulley 74 is fixedly provided on one of the granulating rollers 13; a first gear 8 is fixedly provided on the other granulating roller 13, a second gear 81 is rotatably provided on the housing 1, the first gear 8 is meshed with the second gear 81 for transmission, a third pulley 75 is fixedly provided on the second gear 81; a belt 76 is provided for transmission between the first pulley 73, the second pulley 74 and the third pulley 75, a driving motor 9 is fixedly provided on the fixed plate 7, and the driving motor The motor shaft of 9 is fixedly connected to the eccentric rod 71. Through the transmission effect between the first pulley 73, the second pulley 74, the third pulley 75 and the belt 76, the driving motor 9 drives the eccentric rod 71 to rotate, so that the first pulley 73, the second pulley 74, and the third pulley 75 rotate at the same time, and the third gear drives the two granulation rollers 13 to rotate synchronously relative to each other through the transmission effect of the second gear 81 and the first gear 8, and the rotation of the second pulley 74, so as to roll the powder into the space between the two granulation rollers 13 for granulation.

[0031] Working principle: the powder to be granulated is added into the feed port 11, and then the driving motor 9 is started to drive the eccentric rod 71 to rotate. At this time, the first pulley 73, the second pulley 74 and the third pulley 75 rotate under the transmission action of the belt 76. The second pulley 74 drives one of the granulating rollers 13 to rotate, and the third pulley 75 drives the other granulating roller 13 to rotate through the second gear 81 and the first gear 8, so that the two granulating rollers 13 rotate relative to each other, and the powder is rolled into the space between the two granulating rollers 13. Granulation is carried out, and the particles produced after granulation fall onto the screen roller 3, and when the eccentric rod 71 rotates, the convex block 72 cooperates with the slide groove 51, so that the connecting frame 5 slides back and forth with the horizontal frame 2, and the horizontal frame 2 slides with the screen roller 3, and the particles shake on the screen roller 3 through the inertial force, and the particles rub against the screen roller 3, so that the particles and the powder materials adhering to the particles are pulverized, and the powder materials separated from the particles fall into the isolation cylinder 6 through the gap between the screen rollers 3, and the particles shake on the screen roller 3. The particles are gradually moved toward the long holes 21 on both sides, and fall from the long holes 21 and are discharged from the particle outlet 12. When the horizontal frame 2 slides, the wire rope 46 is tightened and relaxed, and the wire rope 46 cooperates with the spring 45 to make the sliding plate 4 slide back and forth, and drive the rotating rod 43 to rotate back and forth along the curvature of the guide groove 23. When the rotating rod 43 rotates, the ratchet ring 44 cooperates with the ratchet block 31 to make the sieve roller 3 rotate unidirectionally, so that the sieve roller 3 reciprocates with the horizontal frame 2. The sieve roller 3 rotates while moving. When the sieve roller 3 rotates, the powder stuck on the sieve roller 3 is cleaned by the cleaning rod 22 fixed on the horizontal frame 2, so as to ensure the direct friction between the sieve roller 3 and the particles and improve the effect of the sieve roller 3 on separating the powder stuck on the particles; when the horizontal frame 2 slides back and forth, it slides with the isolation cylinder 6. When the isolation cylinder 6 slides, the powder collected in the isolation cylinder 6 moves along the inclined surface at the bottom of the isolation cylinder 6 to the position of the powder discharge pipe 61 and is discharged through the powder discharge pipe 61.

[0032] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydrogen production system based on a waste denitration catalyst as a ceramic carrier, comprising a housing (1), wherein two granulation rollers (13) are arranged on the housing (1), characterized in that: A transverse frame (2) is slidably arranged on the housing (1), a plurality of screen rollers (3) are rotatably arranged on the transverse frame (2), and long holes (21) are arranged on both sides of the transverse frame (2); It also includes a driving assembly, which drives the two granulation rollers (13) to rotate relative to each other to produce granules, thereby causing the horizontal frames (2) to slide back and forth; It also includes a one-way rotating component, which is used to drive the screen roller (3) to rotate when sliding between the horizontal frames (2), so that the screen roller (3) and the particles generate friction, thereby separating the particles from the powder; The one-way rotating assembly comprises a plurality of rotating rods (43) rotatably arranged on the transverse frame (2), the plurality of rotating rods (43) corresponding to the plurality of screen rollers (3) one by one, a ratchet ring (44) being fixedly arranged on the rotating rod (43), a ratchet block (31) being rotatably arranged on the screen roller (3), a torsion spring being arranged between the ratchet block (31) and the screen roller (3), and the ratchet block (31) being engaged and connected with the ratchet ring (44); A plurality of cleaning rods (22) are fixedly arranged on the transverse frame (2), and the plurality of cleaning rods (22) correspond one-to-one to and fit closely to the plurality of sieve rollers (3).

2. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 1, characterized in that: A sliding plate (4) is slidably arranged on the transverse frame (2), a plurality of lifting rods (41) are rotatably arranged on the sliding plate (4), the plurality of lifting rods (41) correspond one to one with a plurality of rotating rods (43), a guide pin (42) is fixedly arranged on the lifting rod (41), and the guide pin (42) is rotatably connected to the rotating rod (43).

3. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 2, characterized in that: The transverse frame (2) is provided with a guide groove (23), and the guide pin (42) is slidably arranged in the guide groove (23).

4. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 2, characterized in that: A steel wire rope (46) is provided between the sliding plate (4) and the housing (1), and two ends of the steel wire rope (46) are fixedly connected to the sliding plate (4) and the housing (1), respectively.

5. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 2, characterized in that: A spring (45) is provided between the sliding plate (4) and the transverse frame (2), and two ends of the spring (45) are respectively fixedly connected to the sliding plate (4) and the transverse frame (2); The spring (45) is a tension spring.

6. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 1, characterized in that: An isolation cylinder (6) is fixedly arranged on the transverse frame (2), and a powder discharge pipe (61) is slidably arranged on the isolation cylinder (6).

7. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 6, characterized in that: The powder discharge pipe (61) is fixedly connected to the housing (1), a baffle (62) is fixedly provided on the powder discharge pipe (61), and the baffle (62) is slidably and sealingly connected to the isolation cylinder (6).

8. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 1, characterized in that: A fixing plate (7) is fixedly arranged on the housing (1), the driving assembly comprises a connecting frame (5) slidably arranged on the fixing plate (7), an eccentric rod (71) is rotatably arranged on the fixing plate (7), a protrusion (72) is fixedly arranged on the eccentric rod (71), a sliding groove (51) is arranged on the connecting frame (5), and the protrusion (72) is slidably arranged in the sliding groove (51).

9. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 8, characterized in that: A first pulley (73) is fixedly arranged on the eccentric rod (71), and a second pulley (74) is fixedly arranged on one of the granulating rollers (13); A first gear (8) is fixedly disposed on the other granulating roller (13), a second gear (81) is rotatably disposed on the housing (1), the first gear (8) and the second gear (81) are meshed and transmitted, and a third pulley (75) is fixedly disposed on the second gear (81); A belt (76) is provided for transmission between the first pulley (73), the second pulley (74) and the third pulley (75).

10. A hydrogen production system based on waste denitration catalyst as a ceramic carrier according to claim 8, characterized in that: A drive motor (9) is fixedly mounted on the fixed plate (7), and a motor shaft of the drive motor (9) is fixedly connected to the eccentric rod (71).

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