Energy-saving direct-fired denitration catalyst drying equipment

Abstract

The present application relates to the technical fields of denitration catalyst, in particular to an energy-saving direct combustion type denitration catalyst drying equipment, which comprises a device base, the top surface of the device base is fixedly connected with a drying box, the inner surface of the drying box is fixedly connected with a heating pipe, the inner surface of the drying box is provided with a placing platform which is turned over according to the water content on both sides of the catalyst, the inner surface of the placing platform is provided with a centering and lifting claw which centers and lifts the catalyst, the bottom surface of the device base is provided with an air exchange channel which adjusts the air drying direction, the top surface of the air exchange channel is provided with an air outlet channel which increases the air drying range, the outer surface of the air outlet channel is provided with a driven lifting frame, the outer surface of the air exchange channel is provided with a reciprocating poking wheel, the hot air periodically "penetrates back and forth" through the honeycomb catalyst, is alternately blown from both ends of the honeycomb catalyst periodically, the moisture forms bidirectional migration in the module, the water content in unit area is reduced, the air drying is facilitated, and the external dryness and internal wetness are eliminated.

Description

Technical Field

[0001] This invention relates to the field of denitrification catalyst technology, specifically to an energy-saving direct-fired denitrification catalyst drying device. Background Technology

[0002] Drying the denitrification catalyst is a key step in the regeneration of the SCR system. The deactivated or regenerated honeycomb or plate SCR catalyst is placed in a drying furnace. After cleaning, the honeycomb module has a water content as high as 40%, and it needs to be dehydrated uniformly below 180°C to prevent loss of active components and microcracks.

[0003] A common defect of denitrification catalysts in direct-fired drying ovens is "dry outside, wet inside"—the outer layer is dried by high-temperature hot air first, while the internal moisture still migrates outward in liquid form, resulting in: a forced extension of the drying cycle; the migrating moisture re-vaporizing upon encountering the high-temperature outer shell, generating secondary stress and causing micro-cracks in the pore walls; and high energy consumption.

[0004] In view of this, we propose an energy-saving direct-fired denitrification catalyst drying device. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving direct-fired denitrification catalyst drying device to solve the problem of "dry outside and wet inside" during the drying process in the denitrification catalyst drying devices mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: An energy-saving direct-fired denitrification catalyst drying device includes a device base, a drying chamber fixedly connected to the top surface of the device base, a heating tube fixedly connected to the inner surface of the drying chamber, a placement platform provided on the inner surface of the drying chamber, a centering lifting claw provided on the inner surface of the placement platform, a ventilation channel provided on the bottom surface of the device base, an air outlet channel provided on the top surface of the ventilation channel, a driven lifting frame provided on the outer surface of the air outlet channel, and a reciprocating wheel provided on the outer surface of the ventilation channel.

[0006] Preferably, the placement platform includes an inner fixed seat, which is fixedly connected to the inner surface of the drying oven. A main hinge seat is fixedly connected to the top surface of the inner fixed seat. A placement platform is hinged to the top surface of the main hinge seat. A side hinge seat is slidably connected to the inner surface of the inner fixed seat. A side connecting plate is hinged to the top surface of the side hinge seat. Connecting levers are rotatably connected to both sides of the main hinge seat.

[0007] Preferably, the maximum rotation angle of the placement platform is 10 degrees to the left and right, the number of side hinge seats is two and they are symmetrically distributed on both sides of the inner fixed seat, the side connecting plate is slidably connected to the bottom surface of the placement platform, and the two ends of the connecting lever are rotatably connected to the side hinge seats on both sides respectively.

[0008] Preferably, the centering lifting claw includes a driving cylinder, which is fixedly connected to the outer surface of the placement platform. A push plate is fixedly connected to the output end of the driving cylinder. A path groove is formed on the outer surface of the push plate. A gripper arm is slidably connected to the inner surface of the path groove. A gripper shovel is fixedly connected to the outer surface of the gripper arm.

[0009] Preferably, the drive cylinder and the push plate are symmetrically distributed on both sides of the placement platform, the number of gripper arms on each push plate is two, and the gripper shovel is slidably connected to the top surface of the placement platform.

[0010] Preferably, the ventilation channel includes a fan, which is fixedly connected to the bottom surface of the device base. The output end of the fan is fixedly connected to a three-way interface. A rotating housing is rotatably connected to the inner surface of the three-way interface. A right-angle channel is opened on the inner surface of the rotating housing. A fixed pipe is fixedly connected to one side of the three-way interface, and a movable pipe is fixedly connected to the other side of the three-way interface. A connecting hose is fixedly connected to the other end of both the fixed pipe and the movable pipe.

[0011] Preferably, the air outlet duct includes an air outlet housing, which is fixedly connected to both sides of the connecting hoses. A fixed bracket is fixedly connected to one side of the device base, and a movable bracket is slidably connected to the other side of the device base. Four equally spaced swing blades are rotatably connected to the inner surface of the air outlet housing. A swing arm is fixedly connected to the outer surface of the swing blades. An active impeller is rotatably connected to the inner surface of the air outlet housing. A driven cam is fixedly connected to the inner surface of the active impeller. A driven rod is slidably connected to the inner surface of the air outlet housing. A connecting column is fixedly connected to the inner surface of the driven rod.

[0012] Preferably, both the fixed bracket and the movable bracket penetrate the air outlet housing and are slidably connected to its inner wall, the swing arm is slidably connected to the connecting column, and the swing arm extends to the inner surface of the driven rod.

[0013] Preferably, the driven lifting frame includes a driven column, both sides of the air outlet housing are fixedly connected to the driven column, one side of the placement platform is fixedly connected to a fixed connecting frame, and the other side of the placement platform is fixedly connected to a movable connecting frame.

[0014] Preferably, the driven column is slidably connected to the inner surfaces of both the fixed connecting frame and the movable connecting frame, and the fixed pipe, fixed support, and fixed connecting frame are on the same side, as are the movable pipe, movable support, and movable connecting frame.

[0015] Preferably, the reciprocating actuating wheel includes a connecting gear, which is fixedly connected to both ends of the rotating housing. A driven rack is slidably connected to the inner surface of the device base, and a rack post is fixedly connected to the outer surface of the driven rack. A rack limiting block is fixedly connected to the bottom surface of the side hinge seat. A drive motor is fixedly connected to the inner surface of the device base, and a rotating disk is fixedly connected to the output end of the drive motor. An actuating column is fixedly connected to the outer surface of the rotating disk. An actuating arm is rotatably connected to the outer surface of the fan, and a contact block is slidably connected to the inner surface of the actuating arm. A compression spring is sleeved on the outer surface of the contact block.

[0016] Preferably, the connecting gear meshes with the driven rack, the rack limiting block contacts the driven rack, the rotating disk is collinear with the rotation center of the actuating arm, and the contact block contacts the rack post.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In this invention, by coordinating the ventilation channel, the air outlet channel, and the driven lifting frame, the original one-way direct-fired hot air is replaced by a "pulse-penetrating" hot air system. This allows the hot air to periodically "penetrate back and forth" through the honeycomb catalyst, replacing the traditional one-way blowing. The hot air is periodically blown alternately from both ends of the honeycomb catalyst, allowing moisture to migrate bidirectionally within the module. This reduces the amount of water per unit area during the internal migration process, facilitating air drying, eliminating external dryness and internal dampness, shortening the drying time per batch by 20% to 35%, and reducing energy consumption by 15% to 25%.

[0019] In this invention, the catalyst placement platform is designed with a horizontal structure, which rotates to both sides according to the weight difference in moisture content on both sides. When one side has more moisture, the air outlet on that side is opened for a longer time, increasing the drying time on that side. At the same time, the moisture on the inner side is blown to the other side, balancing the air exposure time on both sides. The moisture content uniformity CV is ≤5%, and the honeycomb crack rate is reduced from 3% to 0.2%, reducing waste and rework. The entire process is mechanically linked, with no additional electrical control detection, making maintenance simple and highly reliable. Attached Figure Description

[0020] Figure 1 This is a side view of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure in which the device base, drying box, and heating tube of the present invention are interconnected.

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 4This is a schematic diagram of the interaction between the placement platform and the drive cylinder of the present invention;

[0024] Figure 5 This is a schematic diagram of the interoperability of the various components of the centering lifting claw of the present invention;

[0025] Figure 6 This is a schematic diagram of the interaction structure of the placement platform, push plate, and gripper arm of the present invention.

[0026] Figure 7 This is a schematic diagram of the mutual cooperation structure of the inner fixing seat, the main hinge seat, and the side hinge seat of the present invention;

[0027] Figure 8 This is a schematic diagram of the interlocking structure of the main hinge seat and the side hinge seat connecting levers of the present invention;

[0028] Figure 9 This is a schematic diagram of the interaction structure between the side hinge seat and the rack limiting block of the present invention;

[0029] Figure 10 This is a schematic diagram of the interaction structure of the placement platform, fan, and air outlet housing of the present invention.

[0030] Figure 11 This is a schematic diagram of the interaction structure of the fan, fixed pipe, and air outlet casing of the present invention.

[0031] Figure 12 This is a schematic diagram of the interlocking structure of the three-way interface, rotating housing, and right-angle channel of the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the air outlet shell and the oscillating blades of the present invention.

[0033] Figure 14 This is a schematic diagram of the internal structure of the air outlet casing of the present invention;

[0034] Figure 15 This is a schematic diagram of the cooperative structure of the swing blade, swing arm, and driven rod of the present invention.

[0035] Figure 16 This is a schematic diagram of the interaction structure between the driving impeller and the driven cam of the present invention;

[0036] Figure 17 This is a schematic diagram of the driven cam structure of the present invention;

[0037] Figure 18 This is a schematic diagram of the interlocking structure of the placement platform, fixed connecting frame, movable connecting frame, and air outlet shell of the present invention.

[0038] Figure 19 This is a schematic diagram of the interoperability of the various components of the reciprocating wheel of the present invention;

[0039] Figure 20 This is a schematic diagram of the interaction structure of the drive motor, the actuating column, and the actuating arm of the present invention.

[0040] Figure 21 This is a schematic diagram of the interlocking structure of the rotating housing, connecting gear, and driven rack of the present invention.

[0041] Figure 22 This is a schematic diagram of the interaction structure of the driven rack, the actuating arm, and the compression spring of the present invention.

[0042] Figure 23 This is a schematic diagram of the interaction structure between the driven rack and the rack limiting block of the present invention;

[0043] Figure 24 This is a schematic diagram of the cooperative structure of the movable pipe, movable support, and movable connecting frame of the present invention.

[0044] In the diagram: 1. Device base; 11. Drying oven; 12. Heating tube; 2. Placement platform; 21. Inner fixed seat; 22. Main hinge seat; 221. Placement table; 23. Side hinge seat; 231. Side connecting plate; 24. Connecting lever; 3. Centering lifting claw; 31. Drive cylinder; 32. Push plate; 321. Path groove; 33. Gripper arm; 331. Gripper shovel; 4. Air exchange channel; 41. Fan; 42. T-junction; 421. Rotating outer shell; 422. Right angle channel; 43. Fixed pipe; 431. Moving pipe; 44. Connecting hose; 5. Air outlet channel; 51. Exhaust casing; 52. Fixed bracket; 521. Moving bracket; 53. Oscillating blade; 531. Oscillating arm; 54. Driving impeller; 541. Driven cam; 55. Driven rod; 551. Connecting column; 6. Driven lifting frame; 61. Driven column; 62. Fixed connecting frame; 621. Moving connecting frame; 7. Reciprocating actuating wheel; 71. Connecting gear; 711. Driven rack; 712. Rack column; 72. Rack limit block; 73. Drive motor; 731. Rotating disk; 732. Actuating column; 74. Actuating arm; 741. Contact block; 742. Compression spring. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figures 1 to 24The present invention provides a technical solution: an energy-saving direct-fired denitrification catalyst drying device, including a device base 1, a drying box 11 fixedly connected to the top surface of the device base 1, a heating tube 12 fixedly connected to the inner surface of the drying box 11, a placement platform 2 provided on the inner surface of the drying box 11, a centering lifting claw 3 provided on the inner surface of the placement platform 2, a ventilation channel 4 provided on the bottom surface of the device base 1, an air outlet channel 5 provided on the top surface of the ventilation channel 4, a driven lifting frame 6 provided on the outer surface of the air outlet channel 5, and a reciprocating turning wheel 7 provided on the outer surface of the ventilation channel 4.

[0047] Heating element 12 heats the product for air drying.

[0048] The placement platform 2 includes an inner fixed seat 21, which is fixedly connected to the inner surface of the drying oven 11. A main hinge seat 22 is fixedly connected to the top surface of the inner fixed seat 21. A placement table 221 is hinged to the top surface of the main hinge seat 22. A side hinge seat 23 is slidably connected to the inner surface of the inner fixed seat 21. A side connecting plate 231 is hinged to the top surface of the side hinge seat 23. Connecting levers 24 are rotatably connected to both sides of the main hinge seat 22.

[0049] The maximum rotation angle of the placement platform 221 is 10 degrees to the left and right. There are two side hinge seats 23, which are symmetrically distributed on both sides of the inner fixed seat 21. The side connecting plate 231 is slidably connected to the bottom surface of the placement platform 221. The two ends of the connecting lever 24 are rotatably connected to the side hinge seats 23 on both sides respectively.

[0050] By setting up the placement platform 2, the catalyst to be dried is placed on the surface. Depending on the different moisture contents on both sides, the placement platform 2 is biased towards different sides. During use, the inner fixing seat 21 provides support for the platform to install other components. The main hinge seat 22 is hinged to the placement platform 221, allowing the placement platform 221 to rotate around the hinge point. The top of the main hinge seat 22 is conical, limiting the maximum rotation angle of the placement platform 221. When the catalyst has different moisture contents on both sides, the placement platform 221 will rotate towards the side with higher moisture content. The side hinge seat 23 can move and rotate up and down on the inner fixed seat 21. The top is connected by a rotatable side connecting plate 231, which keeps the side connecting plate 231 in contact with the bottom of the placement platform 221 to increase the contact area. When the placement platform 221 descends to one side, the side hinge seat 23 is pressed down by the side connecting plate 231. Although the side connecting plate 231 on the other side is not pressed, it will be lifted by the action of the connecting lever 24. The height of the bottom rack limit block 72 is changed after the side hinge seat 23 rises and falls.

[0051] The centering lifting claw 3 includes a drive cylinder 31, which is fixedly connected to the outer surface of the placement platform 221. The output end of the drive cylinder 31 is fixedly connected to a push plate 32. A path groove 321 is opened on the outer surface of the push plate 32. A gripper arm 33 is slidably connected to the inner surface of the path groove 321. A gripper shovel 331 is fixedly connected to the outer surface of the gripper arm 33.

[0052] The drive cylinder 31 and the push plate 32 are symmetrically distributed on both sides of the placement platform 221. There are two gripper arms 33 on each push plate 32. The gripper shovel 331 is slidably connected to the top surface of the placement platform 221.

[0053] By setting the centering lifting claw 3, the catalyst can be centered and lifted. During use, after the catalyst is placed on the surface of the placement platform 221, the drive cylinder 31 is activated to drive the push plate 32 to rise outside the placement platform 221. The movement path of the push plate 32 is perpendicular to the placement platform 221. As the path groove 321 rises, the distance between the path groove 321 and the contact point of the gripper arm 33 will gradually decrease, so that the gripper arm 33 and the gripper shovel 331 also move closer to each other, thereby pushing the catalyst on the placement platform 221 inward to place it in the middle position of the placement platform 221, so that the placement platform 221 can detect the weight on both sides.

[0054] When the clamping arm 33 and the clamping shovel 331 clamp the catalyst, the clamping shovel 331 will lift the catalyst from the bottom. At this time, the clamping arm 33 cannot move further inward because it has already clamped the catalyst. The push plate 32 continues to rise, which will cause the clamping arm 33 to rise, thereby lifting the catalyst. Since the contact part between the clamping arm 33 and the path groove 321 is rectangular, the clamping arm 33 cannot rotate inside the path groove 321, thereby lifting the catalyst and leaving the bottom open for heating and drying. Since the centering lifting claw 3 is installed on the surface of the placement platform 221, with the placement platform 221 as the reference, when the placement platform 221 is tilted, the centering lifting claw 3 will also tilt, so that the catalyst always remains parallel to the placement platform 221.

[0055] The ventilation channel 4 includes a fan 41, which is fixedly connected to the bottom surface of the device base 1. A three-way interface 42 is fixedly connected to the output end of the fan 41. A rotating housing 421 is rotatably connected to the inner surface of the three-way interface 42. A right-angle channel 422 is opened on the inner surface of the rotating housing 421. A fixed pipe 43 is fixedly connected to one side of the three-way interface 42, and a movable pipe 431 is fixedly connected to the other side of the three-way interface 42. A connecting hose 44 is fixedly connected to the other end of both the fixed pipe 43 and the movable pipe 431.

[0056] By setting the ventilation channel 4, the direction of air drying is switched at regular intervals to ensure that the catalyst is heated evenly on both sides. During use, the blower 41 is input through the three-way interface 42. The two sides of the three-way interface 42 are connected to the fixed pipe 43 and the movable pipe 431, respectively, which correspond to the air outlet channels 5 on both sides. The rotating shell 421 in the middle of the three-way interface 42 plays the role of switching and inputting air force. The right-angle channel 422 is always input from the bottom and output from both sides. By rotating and switching the output direction of the right-angle channel 422, the connection with the fixed pipe 43 and the movable pipe 431 is switched alternately for output. The air force is input to the air outlet channel 5 through the connecting hose 44 to heat and dry the catalyst.

[0057] The air outlet duct 5 includes an air outlet housing 51, which is fixedly connected to the connecting hoses 44 on both sides. A fixed bracket 52 is fixedly connected to one side of the device base 1, and a movable bracket 521 is slidably connected to the other side of the device base 1. Four equally spaced swing blades 53 are rotatably connected to the inner surface of the air outlet housing 51. A swing arm 531 is fixedly connected to the outer surface of the swing blades 53. An active impeller 54 is rotatably connected to the inner surface of the air outlet housing 51. A driven cam 541 is fixedly connected to the inner surface of the active impeller 54. A driven rod 55 is slidably connected to the inner surface of the air outlet housing 51. A connecting column 551 is fixedly connected to the inner surface of the driven rod 55.

[0058] Both the fixed bracket 52 and the movable bracket 521 penetrate the air outlet housing 51 and are slidably connected to its inner wall. The swing arm 531 is slidably connected to the connecting column 551 and extends to the inner surface of the driven rod 55.

[0059] By setting the air outlet duct 5, the air outlet range is increased by swinging. During use, the air force enters the air outlet housing 51 from the connecting hose 44 and drives the active impeller 54 to rotate. The active impeller 54 drives the driven cam 541 in the middle to rotate. The driven cam 541 will periodically raise and lower the driven rod 55. The driven rod 55 raises and lowers the swing arm 531 through the connecting column 551, so that the swing arm 531 and the swing blade 53 rotate around the connection with the air outlet housing 51, thereby changing the air outlet angle and increasing the air drying range.

[0060] The driven lifting frame 6 includes a driven column 61. Both sides of the air outlet housing 51 are fixedly connected to the driven column 61. One side of the placement platform 221 is fixedly connected to a fixed connecting frame 62, and the other side of the placement platform 221 is fixedly connected to a movable connecting frame 621.

[0061] The driven column 61 is slidably connected to the inner surfaces of the fixed connecting frame 62 and the movable connecting frame 621. The fixed pipe 43, the fixed bracket 52, and the fixed connecting frame 62 are on the same side, and the movable pipe 431, the movable bracket 521, and the movable connecting frame 621 are on the same side.

[0062] By setting the driven lifting frame 6, the rotation of the placement platform 221 is synchronized with the air outlet housing 51, so that the air outlet housing 51 is also kept parallel to the placement platform 221. During use, when the placement platform 221 is tilted, the fixed connecting frame 62 and the movable connecting frame 621 on both sides will also tilt, forming a high and low state, and will move the driven column 61 on the air outlet housing 51, so that the air outlet housing 51 on both sides will be raised and lowered respectively. The air outlet housing 51 can be raised and lowered on the fixed support 52 and the movable support 521 to limit the range of movement, and the length of the connecting hose 44 is variable to adapt to different distances between the air outlet housing 51 and the fixed pipe 43 or the movable pipe 431 after raising and lowering.

[0063] The reciprocating actuating wheel 7 includes a connecting gear 71, which is fixedly connected to both ends of the rotating housing 421. A driven rack 711 is slidably connected to the inner surface of the device base 1, and a rack post 712 is fixedly connected to the outer surface of the driven rack 711. A rack limit block 72 is fixedly connected to the bottom surface of the side hinge seat 23. A drive motor 73 is fixedly connected to the inner surface of the device base 1. A rotating disk 731 is fixedly connected to the output end of the drive motor 73. An actuating post 732 is fixedly connected to the outer surface of the rotating disk 731. An actuating arm 74 is rotatably connected to the outer surface of the fan 41. A contact block 741 is slidably connected to the inner surface of the actuating arm 74, and a compression spring 742 is sleeved on the outer surface of the contact block 741.

[0064] The connecting gear 71 meshes with the driven rack 711, the rack limiting block 72 contacts the driven rack 711, the rotating disk 731 and the rotating arm 74 are collinear, and the contact block 741 contacts the rack post 712.

[0065] By setting the reciprocating turning wheel 7, the drying time on both sides is adjusted according to the different water content on both sides of the catalyst. During use, after the placement platform 221 is tilted, the height of the bottom rack limit block 72 is changed after the side hinge seat 23 is raised and lowered. At the same time, the rotation of the outer shell 421 to switch the connection direction of the right angle channel 422 is controlled by the connecting gear 71. The reciprocating movement of the driven rack 711 will drive the connecting gear 71 to rotate back and forth, thereby causing the rotating outer shell 421 to rotate.

[0066] The drive motor 73 drives the actuating column 732 on the rotating disk 731 to cause the actuating arm 74 to swing. The actuating column 732 is only responsible for pushing the actuating arm 74. The swing of the actuating arm 74 will push the driven rack 711 through the rack column 712, causing the driven rack 711 to move laterally. Through the action of the contact block 741 and the compression spring 742, when the actuating arm 74 pushes the driven rack 711 in the first half, as the distance between the rack column 712 and the actuating arm 74 gradually decreases, it will squeeze the compression spring 742. However, the actuating arm 74 is pushed by the actuating column 732 and cannot swing in the opposite direction until the actuating arm 74 is in a vertical state. At this time, the compression spring 742 is compressed to its limit. When the actuating column 732 continues to push the actuating arm 74 to swing, there is no obstruction of the actuating column 732 on the other side of the actuating arm 74. The compression spring 742 will instantly reset, causing the actuating arm 74 to swing quickly to the other side, thereby accelerating the time of switching wind direction.

[0067] Because the toggle arm 74 swings rapidly to the other side, driven by the compression spring 742 and not controlled by the toggle column 732, the driven rack 711 will move rapidly until it is blocked by the rack limit block 72. The rack limit block 72 is an inclined surface. Depending on the height of the rack limit block 72, the position of the rack limit block 72 that is blocked will be different. In this way, the rack limit block 72 on the side with higher water content is lower, and the driven rack 711 will move a longer distance to that side. When the toggle column 732 reverses and pushes it in the opposite direction, the driven rack 711 needs to move a longer distance before it can mesh with the connecting gear 71, thereby extending the air supply time on the side with more water content.

[0068] The movable pipe 431, movable bracket 521, and movable connecting frame 621 are on the same side and can all be pulled out from the device base 1, thereby pulling out the air outlet duct 5 on that side, thus freeing up that side for placing the catalyst.

[0069] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, each component is installed inside the device base 1 and the drying chamber 11. The heating tube 12 surrounds the inside of the drying chamber 11. When air comes out from both sides, the catalyst is dried through the action of air drying and heating.

[0070] In this embodiment, as Figure 4 , Figure 5 , Figure 6 As shown, the centering lifting claw 3 is installed on the placement platform 221. With the placement platform 221 as the reference, when the placement platform 221 is tilted, the reference also tilts. The centering lifting claw 3 passes through the path groove 321, first centers and then lifts up. While detecting the moisture content on both sides, the bottom is left empty for air drying.

[0071] In this embodiment, as Figure 7 , Figure 8 , Figure 9 As shown, the placement platform 221 is used to place the catalyst and is also used as a balance. Depending on the different water contents on both sides of the catalyst, it is tilted to different sides, and the rack limit block 72 is raised and lowered to different heights to control the air outlet time on both sides.

[0072] In this embodiment, as Figure 10 , Figure 11 , Figure 12 As shown, the fan 41's impeller rotates back and forth through the right-angle channel 422, causing the fan to output air from the outlet channels 5 on both sides.

[0073] In this embodiment, as Figure 13 , Figure 14 , Figure 15 As shown, the air outlet duct 5 uses the rotation of the internal active impeller 54 to make the swing blades 53 swing back and forth to increase the air outlet range.

[0074] In this embodiment, as Figure 16 , Figure 17 As shown, the driven cam 541 is divided into four sections, which are high, medium and low cycles, causing the driven rod 55 to periodically raise and lower the swing arm 531.

[0075] In this embodiment, as Figure 18 As shown, when the placement platform 221 is tilted, the fixed connecting brackets 62 and the movable connecting brackets 621 on both sides will also tilt, so that the air outlet housing 51 will also remain parallel to the placement platform 221.

[0076] In this embodiment, as Figure 19 , Figure 20 , Figure 21 As shown, the drive motor 73 drives the actuating column 732 on the rotating disk 731 to drive the actuating arm 74 to swing, which drives the driven rack 711 to move back and forth. The reciprocating movement of the driven rack 711 will drive the connecting gear 71 to rotate back and forth.

[0077] In this embodiment, as Figure 22 As shown, when the actuating arm 74 moves the first half of the driven rack 711, the distance between the rack post 712 and the actuating arm 74 gradually decreases until the actuating arm 74 is in a vertical state. At this time, the compression spring 742 is compressed to its limit. If the actuating arm 74 is moved further, the compression spring 742 will instantly reset, causing the actuating arm 74 to swing quickly to the other side.

[0078] In this embodiment, as Figure 23 As shown, when the rack limit block 72 is at different heights, the driven rack 711 can move different distances on both sides, thereby changing the time it takes for the driven rack 711 to move to the meshing point of the connecting gear 71 and changing the time for air to be discharged from both sides.

[0079] In this embodiment, as Figure 24As shown, the movable pipe 431, movable bracket 521, and movable connecting frame 621 can be pulled out from the device base 1, thereby pulling out the air outlet duct 5 on that side.

[0080] The method of use and advantages of this invention: The energy-saving direct-fired denitrification catalyst drying equipment operates as follows:

[0081] like Figures 1 to 24 As shown, during use, the catalyst is placed on the tiltable platform 221. The drive cylinder 31 moves the gripper arm 33 and gripper shovel 331 inward synchronously via the push plate 32 and the path groove 321 to center the catalyst. The platform 221 will tilt due to the different water content on both sides of the catalyst, which will cause the side hinge seat 23 and the rack limit block 72 to change in height. The gripper arm 33 continues to retract and lift to center and suspend the catalyst, leaving ventilation space at the bottom. At the same time, the driven lifting frame 6 makes the air outlet shells 51 on both sides rise and fall synchronously with the platform 221 to keep the air outlet parallel to the catalyst.

[0082] The height of the rack limit block 72 is determined by the tilt of the placement platform 221, thereby limiting the stroke of the driven rack 711. The drive motor 73 causes the toggle arm 74 to swing back and forth, causing the driven rack 711 to swing back and forth. The stroke on both sides is controlled according to the height of the rack limit block 72, thereby controlling the time of the three-way interface 42. This allows for extended air supply time on the high-moisture side, with air coming out of the two ventilation channels 4 alternately. After the air enters the air outlet channel 5, the active impeller 54 drives the swing blades 53 to sweep back and forth via the driven cam 541, expanding the drying surface. At the same time, the driven lifting frame 6 keeps the air outlet parallel to the tilted placement platform 221, ensuring that the hot air blows vertically through the catalyst layer.

[0083] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving direct-fired denitrification catalyst drying device, comprising a device base (1), wherein a drying chamber (11) is fixedly connected to the top surface of the device base (1), and a heating tube (12) is fixedly connected to the inner surface of the drying chamber (11), characterized in that: The inner side surface of the drying box (11) is provided with a placing platform (2) which is turned over according to the water content on both sides of the catalyst, the bottom surface of the device base (1) is provided with an air exchange channel (4) which adjusts the air drying direction, the top surface of the air exchange channel (4) is provided with an air outlet channel (5) which increases the air drying range, the outer side surface of the air outlet channel (5) is provided with a driven lifting frame (6), and the outer side surface of the air exchange channel (4) is provided with a reciprocating poking wheel (7). The placing platform (2) comprises an inner fixing seat (21) which provides a mounting plane and is fixedly connected with the inner side surface of the drying box (11), the inner side surface of the inner fixing seat (21) is slidably connected with a side hinged seat (23), the number of the side hinged seat (23) is two, and the side hinged seats (23) are symmetrically distributed on the two sides of the inner fixing seat (21), the air exchange channel (4) comprises a fan (41) which is fixedly connected with the bottom surface of the device base (1), the output end of the fan (41) is fixedly connected with a three-way interface (42) which is T-shaped inside, the inner side surface of the three-way interface (42) is rotatably connected with a rotating shell (421), the rotating shell (421) plays a role of switching and inputting air force, and the placing platform (2) is inclined to different sides according to different water contents on both sides; The reciprocating poking wheel (7) comprises a connecting gear (71) which is fixedly connected with both ends of the rotating shell (421) so that the rotating shell (421) reciprocatingly rotates, the inner side surface of the device base (1) is slidably connected with a driven rack (711), the connecting gear (71) is engaged with the driven rack (711), the outer side surface of the driven rack (711) is fixedly connected with a rack column (712), the driven rack (711) moves transversely by being pushed by the rack column (712), and the bottom surface of the side hinged seat (23) is fixedly connected with a rack limiting block (72), the rack limiting block (72) is a slope, and the side hinged seat (23) is lifted to change the height of the bottom rack limiting block (72); The inner side surface of the device base (1) is fixedly connected with a driving motor (73), the output end of the driving motor (73) is fixedly connected with a rotating disc (731), the outer side surface of the rotating disc (731) is fixedly connected with a poking column (732), the outer side surface of the fan (41) is rotatably connected with a poking arm (74), the inner side surface of the poking arm (74) is slidably connected with a contact clamping block (741), and the outer side surface of the contact clamping block (741) is sleeved with a compression spring (742). The driving motor (73) drives the rotating disc (731) to drive the rotating column (732) to drive the rotating arm (74) to swing, the swing of the rotating arm (74) drives the driven rack (711) to move transversely through the rack column (712), and the driven rack (711) is squeezed and compressed by the rack column (712) and the rotating arm (74) gradually reducing the spacing, the rotating arm (74) is pushed by the rotating column (732), cannot swing reversely, and is in a vertical state until the rotating arm (74) is pushed by the rotating column (732) to swing, the other side of the rotating arm (74) is not blocked by the rotating column (732), the compressed spring (742) is reset to make the rotating arm (74) swing to the other side quickly, and the driven rack (711) moves quickly until being blocked by the rack limiting block (72); The rack limiting block (72) on the side with high water content is lower in position, the driven rack (711) moves to the side for a longer distance, when the rotating column (732) is reversed to push it reversely, the driven rack (711) needs to move for a longer distance to engage with the connecting gear (71), so that the air supply time on the side with more water content is prolonged.

2. The energy-saving direct-fired denitration catalyst drying equipment according to claim 1, characterized in that: The top surface of the inner fixing seat (21) is fixedly connected with a main hinge seat (22), and the top surface of the main hinge seat (22) is hingedly connected with a left-right inclined placement table (221).

3. The energy-saving dry device for direct-fired denitration catalyst according to claim 2, characterized in that: The inner side surface of the placement platform (2) is provided with a centering and lifting claw (3) for lifting the catalyst, the centering and lifting claw (3) comprises a driving cylinder (31) fixedly connected with the outer side surface of the placement table (221), the output end of the driving cylinder (31) is fixedly connected with a pushing plate (32) for clamping and lifting controlled by lifting, the outer side surface of the pushing plate (32) is provided with a path groove (321) for clamping control, and the inner side surface of the path groove (321) is slidably connected with a clamping jaw arm (33).

4. The energy-saving dry device for direct-fired denitration catalyst according to claim 3, characterized in that: One side of the three-way interface (42) is fixedly connected with a fixed pipeline (43), the other side of the three-way interface (42) is fixedly connected with a movable pipeline (431), and the other ends of the fixed pipeline (43) and the movable pipeline (431) are fixedly connected with a connecting hose (44) for stretching and retracting.

5. The energy-saving direct-fired denitration catalyst drying equipment according to claim 4, characterized in that: The air outlet channel (5) comprises an air outlet shell (51), the air outlet shell (51) is fixedly connected with the two connecting hoses (44), one side of the device base (1) is fixedly connected with a fixed support (52), the other side of the device base (1) is slidably connected with a movable support (521), and the inner side surface of the air outlet shell (51) is rotatably connected with a swing blade (53).

6. The energy-saving direct-fired denitration catalyst drying equipment according to claim 5, characterized in that: The inner side surface of the air outlet shell (51) is rotatably connected with a driving impeller (54) for rotating under the influence of air, the inner side surface of the driving impeller (54) is fixedly connected with a driven cam (541), the inner side surface of the air outlet shell (51) is slidably connected with a driven rod (55), and the driven rod (55) is lifted and lowered under the influence of the driven cam (541).

7. The energy-saving direct-fired denitration catalyst drying equipment according to claim 6, characterized in that: The driven lifting frame (6) comprises driven columns (61), both sides of the air outlet shell (51) are fixedly connected with the driven columns (61), one side of the placing table (221) is fixedly connected with a fixed connecting frame (62), and the other side of the placing table (221) is fixedly connected with a movable connecting frame (621).

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