High-wear-resistance denitration catalyst preparation device and process

Abstract

The preparation device comprises a reaction cylinder and a processing table, a mounting frame is fixedly connected to the reaction cylinder, and a diffusion box is arranged at the bottom of the reaction cylinder; the shielding assembly is arranged on the mounting frame; the conveying assembly is arranged on the machining table; the reaction device further comprises a force storage mechanism and a discharging assembly which are arranged on the reaction cylinder. When the shielding assembly is completely opened, the force storage mechanism drives the discharging assembly to move at equal intervals through cooperation of a gear set, so that quantitative catalyst paste can be extruded out for coating, the coating amount each time is effectively controlled, the shielding assembly is reset after coating is completed, the bottom of the diffusion box is protected again, and the coating efficiency is improved. The diffusion box can be effectively prevented from being dried and blocked, complex electronic equipment does not need to be used in the working process of the whole device, and the manufacturing and maintenance cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of catalyst preparation, and in particular to a highly wear-resistant denitration catalyst preparation device and process. Background Art

[0002] DeNOx catalyst refers to the catalyst used in the SCR deNOx system of power plants. In the SCR reaction, it is a substance that prompts the reducing agent to selectively react chemically with nitrogen oxides in the flue gas at a certain temperature. In the catalyst preparation device, the wear resistance of the deNOx catalyst can be increased by adding special ingredients.

[0003] For example, the Chinese utility model patent with application number: 202320586607.7, named "A denitrification catalyst coating machine", discloses a denitrification catalyst coating machine. The device will not stop working due to the nozzle, thereby improving work efficiency, facilitating the recycling of denitrification catalysts, and effectively reducing the waste of denitrification catalysts. It realizes the control of the nozzle position, making the spraying position more precise, preventing multiple spraying on the same part of the workpiece, and making the workpiece coating more uniform.

[0004] The shortcomings of the existing technology are that when the coating machine sprays the paste-like denitrification catalyst, uneven discharge is likely to occur, especially when spraying the catalytic plate on the assembly line. It is also necessary to set up a sensing device to control the coating machine to complete the coating operation. This process requires the coordinated operation of multiple electrical components. The use of electrical components will increase the difficulty of subsequent maintenance. Summary of the invention

[0005] The purpose of the present invention is to provide a highly wear-resistant denitration catalyst preparation device and process to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highly wear-resistant denitrification catalyst preparation device, comprising a reaction cylinder and a processing table, wherein a mounting frame is fixedly connected to the reaction cylinder, and a diffusion box is arranged at the bottom of the reaction cylinder; further comprising a shielding assembly, which is arranged on the mounting frame; further comprising a feeding assembly, which is arranged on the processing table; further comprising a power storage mechanism and a discharge assembly, which are arranged on the reaction cylinder; during coating, the feeding assembly moves to drive the shielding assembly to open, and triggers the mechanism assembly to store power, and when the shielding assembly is opened, the power storage mechanism drives the discharge assembly to move through a gear set to extrude a certain amount of paste onto the catalyst plate for coating.

[0007] As a further description of the above technical solution: The shielding assembly includes a protective plate slidably connected to the mounting frame; a baffle is fixedly connected to one side of the protective plate, a connecting spring is arranged between the baffle and the mounting frame, and a wedge-shaped baffle is connected to the bottom of the protective plate via an abutment spring; a limiting unit for fixing the baffle is also arranged on the mounting frame; the limiting unit includes a single-sided limiting block and a wedge-shaped unlocking block slidably connected to the mounting frame, a top plate is fixedly connected to the top of the single-sided limiting block and the wedge-shaped unlocking block, and a supporting spring is arranged between the top plate and the mounting frame.

[0008] As a further description of the above technical solution: The feeding assembly includes a conveyor belt arranged in the processing table, and the conveyor belt is provided with a first trigger block, a first limit block and two second limit blocks; the first trigger block contacts with a wedge-shaped stopper during its movement, and the two second limit blocks contact with a wedge-shaped unlocking block during their movement.

[0009] As a further description of the above technical solution: The discharge assembly is fixedly connected to a horizontal plate on the reaction barrel, and a threaded barrel is rotatably connected to the horizontal plate; a threaded rod is connected to the inner thread of the threaded barrel, and an extrusion plate is fixedly connected to the bottom end of the threaded rod, and the extrusion plate is slidably connected to the inside of the reaction barrel; a vertical rod is rotatably connected to the side wall of the reaction barrel, and the vertical rod is transmission-connected to the threaded barrel through a belt.

[0010] As a further description of the above technical solution: The power storage mechanism includes a fixing frame fixedly connected to the reaction tube, and a first rotating rod and a second rotating rod are rotatably connected to the fixing frame; the first rotating rod is connected to the protective plate through a connecting unit, and an action component is arranged between the first rotating rod and the second rotating rod.

[0011] As a further description of the above technical solution: The connecting unit includes a gear plate and a first fixed plate arranged on the first rotating rod, and a torsion spring is arranged between the first fixed plate and the fixed frame; a support block is fixedly connected to one side of the protective plate, and a tooth plate is slidably connected to the support block, and the tooth plate engages with the gear plate during its movement; a guide unit is provided on the mounting frame for limiting the tooth plate; the guide unit includes a track groove opened on the mounting frame, and a guide rod is fixedly connected to the bottom of the tooth plate, and the guide rod is slidably connected in the track groove.

[0012] As a further description of the above technical solution: The action component includes a first helical toothed plate fixedly connected to the first rotating rod, and the second rotating rod is provided with a second helical toothed plate and a second fixed plate; an auxiliary spring is provided between the second fixed plate and the second helical toothed plate, and the elastic force of the auxiliary spring drives the second helical toothed plate to engage with the first helical toothed plate; the gear set includes an active bevel gear provided on the second rotating rod, and a driven bevel gear is provided on the vertical rod, and the active bevel gear is engaged with the driven bevel gear.

[0013] As a further description of the above technical solution: The mounting frame is also provided with a cleaning component for removing glue from the protective plate, and the cleaning component includes a reciprocating screw arranged on the mounting frame, a reciprocating screw block is arranged on the reciprocating screw, and a scraper is connected to the reciprocating screw block via a telescopic rod; a limiting groove is provided on the mounting frame, and the scraper is slidably connected in the limiting groove via a limiting rod, one end of the reciprocating screw is fixedly connected to a first gear ring, and the second rotating rod is fixedly connected to a second gear ring, and the first gear ring is meshed with the second gear ring; collection units are also provided on both sides of the mounting frame.

[0014] As a further description of the above technical solution: The collecting assembly comprises a collecting frame fixedly connected to the mounting frame, and a scraper plate is elastically arranged in the collecting frame.

[0015] As a further description of the above technical solution: A process for preparing the highly wear-resistant denitration catalyst described above specifically comprises the following steps: S1: After the calcined mineral fiber and TiO2 are evenly mixed, deionized water, ammonium metavanadate solution and ammonium heptamolybdate solution are added and stirred thoroughly; S2: Add kaolin, activated carbon powder and plant fiber into the solution and stir to form a paste; S3: The paste is coated on the catalytic plate through the above device, dried, and calcined at 400-600°C for 1-6h to obtain a denitration catalyst.

[0016] In the above technical scheme, the highly wear-resistant denitration catalyst preparation device and process provided by the present invention have the following beneficial effects: The present invention sets up the mutual cooperation among the reaction cylinder, the processing table, the installation frame, the diffusion box, the shielding component, the feeding component, the power storage mechanism, the discharge component and the gear group. When the catalyst plate is driven to move by the feeding component, the shielding component at the bottom of the diffusion box is triggered to move and the power storage mechanism is driven to store power. When the shielding component is fully opened, the power storage mechanism drives the discharge component to move equidistantly through the cooperation of the gear group, so that a certain amount of catalyst paste can be squeezed out for coating, and the coating amount each time can be effectively controlled. After the coating is completed, the shielding component is reset to protect the bottom of the diffusion box again, which can effectively avoid the diffusion box from drying and clogging. In addition, the whole device does not require the use of complex electronic equipment during operation, which effectively reduces the manufacturing and maintenance costs.

[0017] 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

[0018] 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.

[0019] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 Another perspective view of the overall structure provided by the embodiment of the present invention; Figure 3 A partial longitudinal section schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structural connection between the shielding assembly and the power storage mechanism provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a shielding component provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a guiding unit provided in an embodiment of the present invention; Figure 7 A schematic diagram of the cleaning component structure provided by an embodiment of the present invention; Figure 8 for Figure 3 The enlarged view of point A in the middle; Fig. 9 for Figure 3 The enlarged view of point B in the middle; Fig.10 for Figure 4 Enlarged view of point C in the middle.

[0020] Description of reference numerals: 1. Reaction tube; 11. Mounting frame; 12. Diffusion box; 2. Processing table; 31. Protective plate; 32. Baffle plate; 33. Connecting spring; 34. Abutting spring; 35. Wedge-shaped block; 36. Single-sided limit block; 37. Wedge-shaped unlocking block; 38. Top plate; 39. Support spring; 41. Conveyor belt; 42. First trigger block; 43. First limit block; 44. Second limit block; 51. Horizontal plate; 52. Threaded tube; 53. Threaded rod; 54. Extrusion plate; 55. Vertical rod; 56. Belt; 61. Fixed frame; 62. First rotating rod; 63, second rotating rod; 71, gear plate; 72, first fixed plate; 73, torsion spring; 74, support block; 75, tooth plate; 76, track groove; 77, guide rod; 81, first oblique tooth plate; 82, second oblique tooth plate; 83, second fixed plate; 84, auxiliary spring; 85, active bevel gear; 86, driven bevel gear; 91, reciprocating screw; 92, reciprocating screw block; 93, telescopic rod; 94, scraper; 95, limit groove; 96, first gear ring; 97, second gear ring; 101, collection frame; 102, scraper plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-10The present embodiment provides a highly wear-resistant denitration catalyst preparation device, including a reaction tube 1 and a processing table 2. The reaction tube 1 and the processing table 2 are both existing equipment and will not be described in detail herein. The processing table 2 is arranged below the reaction tube 1, and a mounting frame 11 is fixedly connected to the reaction tube 1. The mounting frame 11 is arranged at the bottom of the reaction tube 1. A diffusion box 12 is arranged at the bottom of the reaction tube 1. The diffusion box 12 is used to disperse the paste discharged from the discharge pipe of the reaction tube 1 to multiple positions; it also includes a shielding component, which is arranged on the mounting frame 11. The shielding component is used to protect the diffusion box 12 to prevent the diffusion box 12 from being in contact with the external environment for a long time, and the paste at the through hole thereof is easy to dry and clog, affecting the later use; it also includes a feeding component, which is arranged on the processing table 2, and the feeding component is used to transport the catalytic bare plate that needs to be coated with the denitration catalyst paste; it also includes a power storage mechanism and a discharge component, which are arranged on the reaction tube 1, and the discharge component The function of is to squeeze the paste inside the reaction tube 1 so that the paste can be discharged smoothly; during coating, the feeding component moves to drive the shielding component to open, and triggers the mechanism component to store power. The shielding component moves to expose the diffusion box 12, so that the paste can be discharged from the diffusion box 12. When the shielding component is opened, the power storage mechanism drives the discharge component to move through the gear set to extrude a certain amount of paste onto the catalytic plate for coating. The shielding component moves to drive the power storage mechanism to store power until the shielding component is completely opened. The power storage mechanism releases the power and drives the discharge component to move equidistantly, so that a certain amount of paste can be squeezed out, and because the power storage mechanism stores the same amount of power each time, the discharge component can be controlled to control the reaction tube 1 to discharge the paste quantitatively, thereby realizing the coating operation, and an automatic touch-up device is also provided on the processing table 2, which can touch the denitration catalyst paste on the catalytic plate evenly, thereby realizing catalyst preparation.

[0023] In an embodiment further provided by the present invention, the shielding assembly includes a protective plate 31 slidably connected to the mounting frame 11, the mounting frame 11 is provided with a hole for the protective plate 31 to move, and the protective plate 31 moves horizontally in the mounting frame 11; a baffle 32 is fixedly connected to one side of the protective plate 31, a connecting spring 33 is provided between the baffle 32 and the mounting frame 11, the elastic force of the connecting spring 33 drives the baffle 32 to approach the mounting frame 11, the bottom of the protective plate 31 is connected to a wedge-shaped stopper 35 through an abutment spring 34, and the bottom of the protective plate 31 is provided with a groove for the wedge-shaped stopper 35 to move, wherein the elastic coefficient of the connecting spring 33 is greater than that of the abutment spring 34. Elastic coefficient; a limiting unit for fixing the baffle 32 is also provided on the mounting frame 11; the limiting unit includes a single-sided limiting block 36 and a wedge-shaped unlocking block 37 which are slidably connected to the mounting frame 11, and a groove for the single-sided limiting block 36 and the wedge-shaped unlocking block 37 to move is provided on the mounting frame 11, and a top plate 38 is fixedly connected to the top of the single-sided limiting block 36 and the wedge-shaped unlocking block 37, and a supporting spring 39 is provided between the top plate 38 and the mounting frame 11, and the elastic force of the supporting spring 39 drives the top plate 38 close to the mounting frame 11, and the side of the wedge-shaped limiting block 35, the single-sided limiting block 36 and the wedge-shaped unlocking block 37 close to the working part of the feeding component are all arranged in an inclined shape.

[0024] Furthermore, the feeding assembly includes a conveyor belt 41 arranged in the processing table 2, the conveyor belt 41 is connected to an external power supply and a control switch, and the conveyor belt 41 is an existing mature technology and will not be described in detail here. The conveyor belt 41 is provided with a first trigger block 42, a first limit block 43 and two second limit blocks 44, and the processing table 2 is provided with a groove for the conveyor belt 41 and the first trigger block 42, the first limit block 43 and the two second limit blocks 44 to move. The first trigger block 42, the first limit block 43 and the second limit block 44 are all arranged in an inclined shape on one side close to the movement of the conveyor belt 41, and the first trigger block 42 and the second limit block 44 slide in the same groove, and the two second limit blocks are respectively slidably connected to the two sides of the first trigger block 42. For specific setting shapes, please refer to the attached figure of the instruction manual. Figure 1, and the number of the first trigger block 42, the second limit block 44 and the second limit block 44 on the conveyor belt 41 can be set according to specific usage requirements. During operation, the catalytic plate to be coated can be placed in the space between the first limit block 43 and the two second limit blocks 44, and the catalytic plate can be limited and fixed by the first limit block 43 and the second limit block 44; the first trigger block 42 contacts with the wedge block 35 during the movement of the first trigger block 42. During this process, the elastic coefficient of the abutment spring 34 arranged on the wedge block 35 is slightly large, so that when the first trigger block 42 contacts with the wedge block 35, the first trigger block 42 can drive the wedge block 35 to move until the baffle plate 32 on one side of the baffle plate 32 is fixed by the limit unit, at this time, the first trigger block 42 pushes the wedge block 35 to move up and squeezes the abutment spring 34, so that the first trigger block 42 can pass through the obstruction of the wedge block 35, and the two second limit blocks 44 contact with the wedge unlocking block 37 during the movement of the two second limit blocks 44.

[0025] Furthermore, the discharge assembly is fixedly connected to a horizontal plate 51 on the reaction barrel 1, and a threaded barrel 52 is rotatably connected to the horizontal plate 51; a threaded rod 53 is internally threadedly connected to the threaded barrel 52, and a squeeze plate 54 is fixedly connected to the bottom end of the threaded rod 53, and the squeeze plate 54 is slidably connected to the inside of the reaction barrel 1, and a vertical rod 55 is rotatably connected to the side wall of the reaction barrel 1, and the vertical rod 55 is fixed to the outside of the reaction barrel 1 through a fixing piece, and the vertical rod 55 is transmission-connected to the threaded barrel 52 through a belt 56, and sprockets compatible with the belt 56 are provided on the vertical rod 55 and the threaded barrel 52.

[0026] In an embodiment further provided by the present invention, the force storage mechanism includes a fixed frame 61 fixedly connected to the reaction cylinder 1, and a first rotating rod 62 and a second rotating rod 63 are rotatably connected to the fixed frame 61. The fixed frame 61 is provided to fix and support the first rotating rod 62 and the second rotating rod 63; the first rotating rod 62 is connected to the protective plate 31 through a connecting unit, and an acting component is provided between the first rotating rod 62 and the second rotating rod 63.

[0027] In the embodiment provided by the present invention, the connecting unit includes a gear plate 71 and a first fixed plate 72 arranged on the first rotating rod 62, and a torsion spring 73 is arranged between the first fixed plate 72 and the fixed frame 61; a support block 74 is fixedly connected to one side of the protective plate 31, and a tooth plate 75 is slidably connected to the support block 74, and the tooth plate 75 is meshed with the gear plate 71 during the movement of the tooth plate 75, and meshed with the gear plate 71 during the movement of the tooth plate 75, so that the gear plate 71 drives the first rotating rod 62 to rotate, and the rotation of the first rotating rod 62 drives the first fixed plate 72 to rotate, so that the torsion spring 73 is twisted and stored, and a guide unit for limiting the tooth plate 75 on the mounting frame 11; the guide unit includes a track groove 76 opened on the mounting frame 11, and a guide rod 77 is fixedly connected to the bottom of the tooth plate 75, and the guide rod 77 is slidably connected in the track groove 76, and the track groove 76 is set to be rectangular. Through the cooperation of the track groove 76 and the guide rod 77, the tooth plate 75 can be driven to change in the horizontal direction during the reciprocating movement.

[0028] In the solution further provided by the present invention, the action assembly includes a first beveled toothed plate 81 fixedly connected to the first rotating rod 62, and a second beveled toothed plate 82 and a second fixed plate 83 are arranged on the second rotating rod 63; an auxiliary spring 84 is arranged between the second fixed plate 83 and the second beveled toothed plate 82, and the elastic force of the auxiliary spring 84 drives the second beveled toothed plate 82 to mesh with the first beveled toothed plate 81. When the tooth plate 75 drives the gear plate 71 to rotate, the first rotating rod 62 drives the first beveled toothed plate 81 to rotate, and one side of the beveled teeth of the first beveled toothed plate 81 will mesh with the second beveled toothed plate 81. The helical teeth on the toothed disc 82 are in contact with each other. At this time, the first helical toothed disc 81 does not drive the second helical toothed disc 82 to rotate. On the contrary, when the torsion spring 73 on the first rotating rod 62 restores the force, the first rotating rod 62 rotates in the opposite direction. At this time, the plane of the first helical toothed disc 81 contacts the plane of the second helical toothed disc 82. The rotation of the first helical toothed disc 81 can drive the second helical toothed disc 82 to rotate. The gear set includes an active bevel gear 85 arranged on the second rotating rod 63, and a driven bevel gear 86 is arranged on the vertical rod 55. The active bevel gear 85 is meshed with the driven bevel gear 86.

[0029] In the solution further provided by the present invention, a cleaning component for removing glue from the protective plate 31 is also provided on the mounting frame 11, and the cleaning component includes a reciprocating screw 91 arranged on the mounting frame 11, and a reciprocating screw block 92 is arranged on the reciprocating screw 91, and a scraper 94 is connected to the reciprocating screw block 92 through a telescopic rod 93; a limiting groove 95 is provided on the mounting frame 11, and the scraper 94 is slidably connected in the limiting groove 95 through a limiting rod. By setting the limiting groove 95 and the limiting rod, the height of the scraper 94 during the reciprocating movement can be controlled. A first toothed ring 96 is fixedly connected to one end of the reciprocating screw 91, and a second toothed ring 97 is fixedly connected to the second rotating rod 63. The first toothed ring 96 is meshed with the second toothed ring 97. When the second rotating rod 63 rotates, the cleaning component can be driven to work with the cooperation of the first toothed ring 96 and the second toothed ring 97 to complete the glue removal work on the protective plate 31 and prevent the colloid attached to the protective plate 31 from solidifying and affecting the sealing; collecting units are also provided on both sides of the mounting frame 11.

[0030] In the solution further provided by the present invention, the collecting component includes a collecting frame 101 fixedly connected to the mounting frame 11, and a scraper plate 102 is elastically arranged in the collecting frame 101. The scraper plate 102 can be arranged to scrape off the paste on the scraper 94 to prevent the colloid attached to the scraper 94 from falling off during movement.

[0031] Working principle: during operation, the catalytic plate to be coated is placed on the processing table 2, and the catalytic plate is located between the first limit block 43 and the second limit block 44. The catalytic plate can be driven to move by the operation of the conveyor belt 41. During the movement, the first trigger block 42 on the conveyor belt 41 will first contact the wedge-shaped block 35 at the bottom of the protective plate 31, and the first trigger block 42 will drive the protective plate 31 to move through the wedge-shaped block 35. During the movement of the protective plate 31, the toothed plate 75 connected on one side will be driven to move synchronously through the support block 74. During the movement of the toothed plate 75, the meshing gear plate 71 will rotate, and the gear plate 71 will drive the first beveled toothed plate 81 to rotate through the first rotating rod 62. One side of the beveled teeth of the first beveled toothed plate 81 will contact the beveled tooth side of the second beveled toothed plate 82. When the first bevel gear plate 81 does not drive the second bevel gear plate 82 to rotate, the first bevel gear plate 81 rotates to push the second bevel gear plate 82 to move and squeeze the auxiliary spring 84. During this process, the torsion spring 73 arranged between the first fixed plate 72 and the fixed frame accumulates force until the protective plate 31 is fully opened. At this time, the baffle plate 32 connected to one side of the protective plate 31 will be limited and fixed by the single-sided limit block 36. At this time, the tooth plate 75 is separated from the gear plate 71, and the torsion spring 73 restores the force, and drives the first bevel gear plate 81 to rotate synchronously through the reverse rotation of the first rotating rod 62. At this time, the plane of the first bevel gear plate 81 contacts the plane of the second bevel gear plate 82. The rotation of the first bevel gear plate 81 can drive the second bevel gear plate 82 to rotate, and the rotation of the second bevel gear plate 82 drives the second rotating rod 63 to rotate synchronously. The second rotating rod 63 rotates through the active bevel gear 85 and the driven bevel gear 86 on the vertical rod 55, which can drive the vertical rod 55 to rotate synchronously. The rotation of the vertical rod 55 drives the threaded cylinder 52 on the horizontal plate 51 to rotate through the belt 56. The rotation of the threaded cylinder 52 drives the threaded rod 53 to move and move downward, and then the paste inside the reaction cylinder 1 can be squeezed through the extrusion plate 54, so that the paste is squeezed onto the catalytic plate through the diffusion box 12. When the threaded rod 53 stops rotating, the catalytic plate just passes through the diffusion box 12. At this time, the catalytic plate that drives the paste continues to move, and the second limit blocks 44 arranged on both sides of the catalytic plate will contact the wedge-shaped unlocking block 37, and lift the top plate 38 through the wedge-shaped unlocking block 37. At this time, the restoring force of the connecting spring 33 connected to the baffle 32 drives the baffle 32 to reset, and drives the protective plate 31 to block the bottom of the diffusion box 12 again; When the baffle 32 is fixed and the second rotating rod 63 rotates, the second tooth ring 97 provided on the second rotating rod 63 will mesh with the first tooth ring 96 on the reciprocating screw 91, thereby driving the reciprocating screw 91 to rotate. The rotation of the reciprocating screw 91 drives the reciprocating thread block to move the scraper 94 through the telescopic rod 93. The paste attached to the surface of the protective plate 31 can be cleaned by the movement of the scraper 94. When the scraper 94 moves to one side of the protective plate 31, the scraper 94 will move upward under the action of the limit groove 95 and the limit rod. At this time, one side of the scraper plate 102 will contact one side of the scraper 94, so that the paste on the scraper 94 can be cleaned again.

[0032] A process for preparing the highly wear-resistant denitration catalyst described above specifically comprises the following steps: S1: After the calcined mineral fiber and TiO2 are evenly mixed, deionized water, ammonium metavanadate solution and ammonium heptamolybdate solution are added and stirred thoroughly; S2: Add kaolin, activated carbon powder and plant fiber into the solution and stir to form a paste; S3: The paste is coated on the catalytic plate through the above device, dried, and calcined at 400-600°C for 1-6h to obtain a denitration catalyst.

[0033] 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 highly wear-resistant denitration catalyst preparation device, comprising a reaction tube (1) and a processing table (2), characterized in that: The reaction cylinder (1) is fixedly connected to a mounting frame (11), and a diffusion box (12) is provided at the bottom of the reaction cylinder (1); Also included is a shielding component, which is arranged on the mounting frame (11); It also includes a material feeding component, which is arranged on the processing table (2); It also includes a power storage mechanism and a material discharge assembly, which are arranged on the reaction cylinder (1); During coating, the feeding assembly moves to drive the shielding assembly to open and trigger the mechanism assembly to store force. When the shielding assembly is opened, the force storage mechanism drives the discharge assembly to move through the gear set to squeeze out a certain amount of paste onto the catalyst plate for coating.

2. A highly wear-resistant denitration catalyst preparation device according to claim 1, characterized in that: The shielding assembly comprises a protective plate (31) slidably connected to the mounting frame (11); A baffle (32) is fixedly connected to one side of the protective plate (31); a connecting spring (33) is provided between the baffle (32) and the mounting frame (11); and a wedge-shaped stopper (35) is connected to the bottom of the protective plate (31) via an abutment spring (34); a limiting unit for fixing the baffle (32) is also provided on the mounting frame (11); The limiting unit comprises a single-sided limiting block (36) and a wedge-shaped unlocking block (37) slidably connected to the installation frame (11); a top plate (38) is fixedly connected to the top of the single-sided limiting block (36) and the wedge-shaped unlocking block (37); and a supporting spring (39) is provided between the top plate (38) and the installation frame (11).

3. A highly wear-resistant denitration catalyst preparation device according to claim 2, characterized in that: The material conveying assembly comprises a conveyor belt (41) arranged in the processing table (2), and a first trigger block (42), a first limit block (43) and two second limit blocks (44) are arranged on the conveyor belt (41); The first trigger block (42) contacts the wedge-shaped stopper (35) during its movement, and the second limit blocks (44) contact the wedge-shaped unlocking blocks (37) during their movement.

4. A highly wear-resistant denitration catalyst preparation device according to claim 2, characterized in that: The discharge assembly is fixedly connected to a transverse plate (51) on the reaction cylinder (1), and a threaded cylinder (52) is rotatably connected to the transverse plate (51); The threaded barrel (52) is internally threadedly connected to a threaded rod (53), the bottom end of the threaded rod (53) is fixedly connected to an extrusion plate (54), the extrusion plate (54) is slidably connected to the inside of the reaction barrel (1), a vertical rod (55) is rotatably connected to the side wall of the reaction barrel (1), and the vertical rod (55) is transmission-connected to the threaded barrel (52) via a belt (56).

5. A highly wear-resistant denitration catalyst preparation device according to claim 4, characterized in that: The power storage mechanism comprises a fixing frame (61) fixedly connected to the reaction cylinder (1), and a first rotating rod (62) and a second rotating rod (63) are rotatably connected to the fixing frame (61); The first rotating rod (62) is connected to the protective plate (31) via a connecting unit, and an action component is provided between the first rotating rod (62) and the second rotating rod (63).

6. A highly wear-resistant denitration catalyst preparation device according to claim 5, characterized in that: The connection unit comprises a gear plate (71) and a first fixed plate (72) arranged on a first rotating rod (62); a torsion spring (73) is arranged between the first fixed plate (72) and the fixed frame (61); A support block (74) is fixedly connected to one side of the protection plate (31), a toothed plate (75) is slidably connected to the support block (74), the toothed plate (75) meshes with the gear plate (71) during its movement, and a guide unit for limiting the position of the toothed plate (75) is provided on the mounting frame (11); The guide unit comprises a track groove (76) formed on the mounting frame (11); a guide rod (77) is fixedly connected to the bottom of the tooth plate (75); and the guide rod (77) is slidably connected in the track groove (76).

7. A highly wear-resistant denitration catalyst preparation device according to claim 6, characterized in that: The action assembly comprises a first beveled toothed disc (81) fixedly connected to the first rotating rod (62), and the second beveled toothed disc (82) and a second fixed disc (83) are arranged on the second rotating rod (63); An auxiliary spring (84) is provided between the second fixed disk (83) and the second helical toothed disk (82), and the elastic force of the auxiliary spring (84) drives the second helical toothed disk (82) to mesh with the first helical toothed disk (81); The gear set comprises a driving bevel gear (85) arranged on the second rotating rod (63), and a driven bevel gear (86) is arranged on the vertical rod (55), and the driving bevel gear (85) is meshed with the driven bevel gear (86).

8. A highly wear-resistant denitration catalyst preparation device according to claim 5, characterized in that: The installation frame (11) is also provided with a cleaning component for removing glue from the protective plate (31), the cleaning component comprising a reciprocating screw (91) arranged on the installation frame (11), a reciprocating screw block (92) being arranged on the reciprocating screw (91), and a scraper (94) being connected to the reciprocating screw block (92) via a telescopic rod (93); A limiting groove (95) is provided on the installation frame (11), the scraper (94) is slidably connected in the limiting groove (95) via a limiting rod, one end of the reciprocating screw rod (91) is fixedly connected to a first toothed ring (96), the second rotating rod (63) is fixedly connected to a second toothed ring (97), and the first toothed ring (96) is meshed with the second toothed ring (97); and collection units are also provided on both sides of the installation frame (11).

9. A highly wear-resistant denitration catalyst preparation device according to claim 8, characterized in that: The collecting assembly comprises a collecting frame (101) fixedly connected to the mounting frame (11), and a scraper plate (102) is elastically arranged in the collecting frame (101).

10. A process for preparing a highly wear-resistant denitration catalyst according to any one of claims 1 to 9, characterized in that: The specific steps include: S1: After the calcined mineral fiber and TiO2 are evenly mixed, deionized water, ammonium metavanadate solution and ammonium heptamolybdate solution are added and stirred thoroughly; S2: Add kaolin, activated carbon powder and plant fiber into the solution and stir to form a paste; S3: The paste is coated on the catalytic plate through the above device, dried, and calcined at 400-600°C for 1-6h to obtain a denitration catalyst.

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