A mixer for preparing a three-way catalyst

Abstract

The application relates to the technical field of material mixing and cleaning, and particularly discloses a mixer for preparing a three-way catalyst, which comprises a bottom-opened mixing box, a discharging pipe, a side wall, a left-side box with a top opening, a side wall and a right-side box with a top opening; the discharging pipe is located between the left-side box and the right-side box; the discharging pipe, the left-side box and the right-side box are fixedly connected with the mixing box; support columns are fixedly connected to the left-side box and the right-side box; a feeding port is formed in the top of the mixing box; the mixer further comprises a discharging mechanism and a mixing mechanism arranged in the mixing box and used for stirring materials; the discharging mechanism comprises a guide recessed block, an auxiliary sieve block, a discharging block, two symmetrical inclined guide plates arranged in the mixing box and on the two sides, a plurality of sieve holes formed in the auxiliary sieve block, and a group of discharging holes symmetrically formed in the two sides of the discharging block along the length direction of the discharging pipe; the problem that the discharging pipe of the existing processing device is prone to blockage during discharging is solved.

Description

Technical Field

[0001] This invention relates to the field of material mixing technology, and more specifically to a mixer for preparing a three-way catalyst. Background Technology

[0002] Existing mixing devices for three-way catalyst processing typically use a container for mixing. After the three-way catalyst is mixed inside the container, it is discharged outside the container. However, some three-way catalyst inevitably adheres to the inner wall of the container. If it is not cleaned in time, the three-way catalyst adhering to the inner wall of the container for a long time will deteriorate and affect the next three-way catalyst processing. Moreover, it is quite inconvenient for workers to clean the inner wall of the container.

[0003] To address the aforementioned issues, Chinese Patent Publication No. CN213824621U discloses a three-way catalyst processing device, comprising a base frame, a concave frame vertically connected to the upper edge of the base frame, a barrel body fixed to the side of the concave frame by a fixing mechanism, a barrel lid fitted to the upper end of the barrel body, and a rotating shaft rotatably mounted on the inner center of the barrel body via a drive mechanism. Stirring mechanisms are provided at both ends of the outer wall of the rotating shaft. Each stirring mechanism includes two square shells horizontally connected to the outer wall of the rotating shaft, with connecting rods inserted inside each of the two square shells. A helical spring connects one end of each connecting rod to the inner wall of the two square shells, respectively. This device allows for quick and easy cleaning of the container's inner wall after the three-way catalyst is mixed and processed, preventing the long-term adhesion of the three-way catalyst to the container's inner wall from deteriorating, thereby improving the quality of the mixing.

[0004] The above-mentioned device has the following problems in actual use: During the discharge of the mixed material, the discharge pipe is the only channel for the mixed material to be discharged. However, the three-way catalyst slurry will adhere to the pipe wall of the discharge pipe due to its viscosity or thixotropy during the discharge, which will gradually reduce the flow cross section and even cause pipe blockage. Alternatively, due to uneven mixing of raw materials or the presence of insufficiently dispersed clumps, these clumps with a size larger than the inner diameter of the discharge pipe will get stuck in the pipe during discharge, forming a physical blockage. Summary of the Invention

[0005] This invention provides a mixer for the preparation of three-way catalysts to solve the problem that the discharge pipe of existing processing devices is prone to blockage during material feeding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mixer for preparing a three-way catalyst, comprising a mixing box with a bottom opening, a feeding pipe, a left box with side walls and a top opening, and a right box with side walls and a top opening; the feeding pipe is located between the left box and the right box; the feeding pipe, the left box, and the right box are all fixedly connected to the mixing box; support columns are fixedly connected to both the left box and the right box; a feed inlet is opened at the top of the mixing box; it also includes a feeding mechanism and a mixing mechanism disposed in the mixing box for stirring materials; the feeding mechanism includes a guide concave block, an auxiliary screen block, a feeding block, inclined guide plates symmetrically disposed on both sides of the mixing box, a plurality of screening holes opened on the auxiliary screen block, and symmetrically disposed on both sides of the feeding block along the length direction of the feeding pipe. The system includes a discharge hole assembly, a guide hole on the discharge pipe, a first sliding hole on the discharge pipe, a second sliding hole on the discharge pipe, a drive assembly for driving the guide block to reciprocate along the length of the discharge pipe, and a power assembly for driving the discharge block to reciprocate along the length of the discharge pipe. The guide block is slidably connected to the guide hole. An auxiliary screen block is located inside the discharge pipe, with one end connected to the guide block and the other end passing through the first sliding hole. The discharge block is located inside the right-side box and is slidably connected to the second sliding hole. The direction of movement of the guide block is opposite to the direction of movement of the discharge block. An inclined guide plate is attached to the inner wall of the mixing box, with one end connected to the mixing box and the other end attached to the discharge pipe.

[0007] Furthermore, it also includes a vibrating guide assembly; the vibrating guide assembly includes a shaking block, several linked shaking blocks equidistantly arranged along the width direction of the feed pipe, and a power unit for driving the shaking block to perform vertical reciprocating motion; the shaking block is fixedly connected to the inclined guide plate; the inclined guide plate is slidably connected to the mixing box; and the two ends of the linked shaking block are respectively fixedly connected to the two inclined guide plates.

[0008] Furthermore, it also includes a top block fixed to the auxiliary screen block and a drive unit for driving the auxiliary screen block to perform vertical reciprocating motion; the auxiliary screen block is slidably connected to the guide recess, and the auxiliary screen block can perform vertical motion within the first sliding hole; several pushing parts are equidistantly arranged along the length direction of the connecting block; the pushing part includes a bottom block, an auxiliary connecting block fixed to the bottom block, and pushing units symmetrically arranged on both sides of the bottom block; the bottom block is fixed to the connecting block; the pushing unit includes a pushing block and a first spring; the pushing block is hinged to the bottom block; the two ends of the first spring are respectively connected to the pushing block and the auxiliary connecting block; the movement direction of the bottom block is opposite to the movement direction of the auxiliary screen block; the pushing block is located on the movement trajectory of the top block.

[0009] Furthermore, it also includes a linkage cleaning unit; the linkage cleaning unit includes a linkage brush, a linkage vibrating block, and a wall groove opened on the feed pipe; the wall groove communicates with the first sliding hole; one end of the linkage brush is fixedly connected to the wall groove, and the other end of the linkage brush abuts against the auxiliary screen block; the linkage vibrating block is fixedly connected to the first sliding hole, and the linkage vibrating block is located on the movement trajectory of the auxiliary screen block.

[0010] Furthermore, the feeding hole assembly includes several feeding holes equidistantly arranged along the width direction of the feeding pipe; it also includes hole wall cleaning sections symmetrically arranged on both sides of the feeding pipe along the length direction of the feeding pipe; the hole wall cleaning section includes several hole wall cleaning units equidistantly arranged along the width direction of the feeding pipe; the hole wall cleaning unit includes a hole rod, several cleaning rods equidistantly fixed to the hole rod along the length direction of the feeding pipe, and a through hole opened in the feeding block; the through hole communicates with the feeding hole; one end of the hole rod is connected to the feeding pipe, and the other end of the hole rod extends into the through hole.

[0011] Furthermore, the hole wall cleaning unit also includes a power hole on the feed tube and a drive component for driving the hole rod to reciprocate along the length of the feed tube; the hole rod is slidably connected to the power hole.

[0012] Furthermore, it also includes an auxiliary vibration unit; the auxiliary vibration block includes an auxiliary vibration groove and an auxiliary vibration unit opened on the feed pipe; the auxiliary vibration groove is connected to the first sliding hole and the second sliding hole respectively; the auxiliary vibration unit includes an auxiliary concave block, a lifting block, several auxiliary vibration blocks fixed on the lifting block, and an auxiliary component for driving the lifting block to make vertical reciprocating motion; the auxiliary concave block is fixedly connected to the auxiliary vibration groove; the lifting block is slidably connected to the auxiliary concave block; the feed block is located on the motion trajectory of the auxiliary vibration block.

[0013] Furthermore, the power assembly includes a power shaft, a first gear, a first rack, a second rack, and a groove on the feed block; the power shaft is rotatably connected to the auxiliary recess; the first gear is fixedly connected to the power shaft; the first rack is fixedly connected to the auxiliary screen block and meshes with the first gear; the second rack is fixedly connected to the groove and meshes with the first gear.

[0014] Furthermore, the power unit includes a rotating shaft, a first cam, a second spring, and a power component for driving the rotating shaft to rotate; the rotating shaft is rotatably connected to the left side box; the first cam is fixedly connected to the rotating shaft and abuts against the shaking block; the two ends of the second spring are respectively connected to the inclined guide plate and the mixing box.

[0015] Furthermore, the drive unit includes a second cam, a drive block, a third spring, and a fourth spring; the second cam is fixedly connected to the power shaft; the drive block is slidably connected to the auxiliary recess, and the two ends of the drive block abut against the second cam and the auxiliary screen block respectively; the two ends of the third spring are connected to the drive block and the auxiliary recess respectively; and the two ends of the fourth spring are connected to the auxiliary screen block and the guide recess respectively.

[0016] The principles and advantages of this scheme are:

[0017] 1. The mixing mechanism thoroughly stirs the raw materials of the three-way catalyst, thereby generating multidimensional turbulent flow. This ensures that the active components of the three-way catalyst are fully dispersed in the matrix, preventing segregation and ensuring consistent performance of each batch of catalyst. Furthermore, the inclined guide plate during stirring creates a guiding effect, preventing high-viscosity catalyst raw materials from bridging or clogging at the outlet, ensuring a continuous and uniform discharge process without interruption or jamming.

[0018] 2. The auxiliary screen block reciprocates along the length of the feed pipe, which, through vibration and displacement, prevents the three-way catalyst material from adhering to or getting stuck in the screening holes, thus maintaining a smooth feed channel. Furthermore, the reciprocating motion adjusts the material throughput, preventing excessive instantaneous flow and ensuring more stable and controllable feeding for subsequent processes.

[0019] 3. The alternating movement of the auxiliary screen block and the feeding block agitates the material inside the feeding pipe, preventing catalyst powder from bridging, adhering, and accumulating within the pipe, ensuring smooth feeding throughout the process. Secondly, the periodic feeding agitation moves the catalyst material remaining at the bottom of the tank, preventing long-term static accumulation and reducing cross-contamination between different batches. Furthermore, the alternating, linked material control mode regulates the instantaneous feeding rate, preventing significant fluctuations in the material level within the mixing tank, keeping the mixing mechanism within the optimal stirring load range, and ensuring stable mixing.

[0020] 4. The vertical reciprocating motion of the inclined guide plate can cause the catalyst powder adhering to the surface of the guide plate to slide off, completely avoiding material caking and retention, and eliminating dead corners of material accumulation at the edges and corners of the guide plate.

[0021] During the movement of the shaking block along with the guide plate, it can synchronously agitate and break up agglomerated catalyst particles in advance, allowing the material to fall into the feed pipe in a loose state evenly, which greatly reduces the screening load of the subsequent auxiliary screen block.

[0022] 5. The vertical reciprocating motion of the auxiliary screen block, combined with the top block, can actively dislodge agglomerated particles stuck in the feed pipe, thereby reducing the probability of feed pipe blockage and significantly improving feed efficiency. Furthermore, dynamic screening reduces static pressure and wear on the screen surface, while quickly discharging stuck particles, reducing localized stress on the screen surface and extending the service life of the auxiliary screen block.

[0023] 6. The misaligned disturbance created by the counter-movement of the shaking block and the auxiliary screen block simultaneously clears accumulated material from the screen surface and the feed pipe port area, completely preventing powder adhesion and jamming, and ensuring smooth feeding throughout the process. The pusher block swings in conjunction with the top block, directly disrupting the powder bridging structure at the feed pipe port, preventing material jamming from the source, and further improving the continuous and smooth feeding. Furthermore, the swinging of the pusher block further disperses agglomerated catalyst particles, allowing loose material to fall orderly into the feed pipe.

[0024] 7. By utilizing the impact vibration between the auxiliary screen block and the vibrating block, catalyst particles stuck in the screening holes can be quickly shaken off through vibration, avoiding screen blockage, maintaining a high opening rate, and significantly increasing the effective screening area.

[0025] 8. During the combined horizontal and vertical movement of the auxiliary screen block, the connecting brush can precisely penetrate into the interior of each screening hole, thoroughly removing catalyst particles stuck deep within the channels, achieving a complete cleaning without dead angles. Furthermore, the different positions of the auxiliary screen block against the connecting brush allow the brush to adapt its deformation, perfectly conforming to the screen surface contour, scraping off fine powder adhering to the screen surface, and avoiding localized material accumulation.

[0026] 9. During the reciprocating motion of the orifice rod relative to the feeding hole, it can directly extend into the inside of the channel and, in conjunction with the cleaning rod, thoroughly push out the catalyst clumps stuck deep in the hole, thus fully removing the material retained in the hole.

[0027] 10. The orifice rod with multiple cleaning rods reciprocates along the axial direction of the feed pipe, disturbing the three-way catalyst material retained inside the pipe, disrupting the powder bridging structure, preventing material from adhering and accumulating on the pipe wall, allowing loose material to be smoothly conveyed downwards, and clearing the feed channel in advance. Furthermore, the orifice rod, carrying the cleaning rods, gradually extends into the feed hole, further scraping away residual fine powder throughout the hole wall, completely removing clumps stuck inside, and completely eliminating the risk of material accumulation inside the hole.

[0028] 11. The vibration generated by the continuous impact of the auxiliary vibrating block can quickly remove the fine powder of the three-way catalyst adhering to the inner wall of the rectangular feeding hole and the surface of the feeding block, thus avoiding the material from caking and accumulating. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a mixer for preparing a three-way catalyst according to an embodiment of the present invention.

[0030] Figure 2 for Figure 1 A schematic diagram of the internal structure of the mixing tank.

[0031] Figure 3 for Figure 2 A schematic diagram of the internal structure of the middle and lower feed pipes and the right side box.

[0032] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0033] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0034] Figure 6 for Figure 3 A schematic diagram of the internal structure of the box on the left side of the middle section.

[0035] Figure 7 for Figure 6 Enlarged view of point C in the middle.

[0036] Figure 8 for Figure 6 Enlarged view of point D in the middle. Detailed Implementation

[0037] The following detailed description illustrates the specific implementation method:

[0038] The reference numerals in the accompanying drawings include: 1. Mixing box; 2. Feed pipe; 3. Left side box; 4. Right side box; 5. Support column; 6. Feed hopper; 7. Guide block; 8. Auxiliary screen block; 9. Feeding block; 10. Inclined guide plate; 11. Bearing block; 12. Protective box; 13. Mixing main shaft; 14. Mixing main block; 15. Auxiliary stirring shaft; 16. Auxiliary stirring block; 17. Shaking block; 18. Connecting shaking block; 19. Slide chute; 20. Top block; 21. Bottom block; 22. Pushing block; 22. Connecting brush. 23. Vibrating block; 24. Hole rod; 25. Cleaning rod; 26. Auxiliary concave block; 27. Lifting block; 28. Auxiliary vibrating block; 29. ​​Power shaft; 30. First gear; 31. First rack; 32. Second rack; 33. Rotating shaft; 34. First cam; 35. Second cam; 36. Drive block; 37. Side block; 38. Linkage block; 39. Power servo motor; 40. Second gear; 41. Limiting block; 42. Third rack; 43. Side vibrating block; 44. Discharge hole; 45.

[0039] The basic implementation examples are as follows: Figure 1 , 2 As shown in points 3, 4, 5, 6, 7, and 8:

[0040] This invention provides a mixer for preparing a three-way catalyst, comprising a mixing box 1 with a bottom opening, a feeding pipe 2, a left box 3 with a right side wall and a top opening, and a right box 4 with a left side wall and a top opening; the feeding pipe 2 is located between the left box 3 and the right box 4; the feeding pipe 2, the left box 3, and the right box 4 are all fixedly connected to the bottom of the mixing box 1; a sealing cap is detachably connected to the bottom of the feeding pipe 2; support columns 5 are fixedly connected to the left box 3 and the right box 4; a feed inlet is opened at the top of the mixing box 1; a feed hopper 6 is connected to the feed inlet; the invention also includes a feeding mechanism and a mixing mechanism disposed in the mixing box 1 for stirring materials; the feeding mechanism includes a guide block 7, an auxiliary screen block 8, a feeding block 9, inclined guide plates 10 symmetrically arranged on the left and right sides of the mixing box 1, a plurality of screening holes opened on the auxiliary screen block 8, a group of feeding holes symmetrically opened on both sides of the feeding block 9 along the length direction of the feeding pipe 2, and a group of feeding holes opened on the feeding pipe 2. The device includes a guide hole on pipe 2, a first sliding hole on the feeding pipe 2, a second sliding hole on the feeding pipe 2, a drive assembly for driving the guide concave block 7 to reciprocate along the length of the feeding pipe 2, and a power assembly for driving the feeding block 9 to reciprocate along the length of the feeding pipe 2. A long block is fixedly connected to the guide concave block 7, and the long block is slidably connected to the guide hole. An auxiliary screen block 8 is located inside the feeding pipe 2, one end of the auxiliary screen block 8 is connected to the guide concave block 7, and the other end of the auxiliary screen block 8 passes through the first sliding hole. The feeding block 9 is located inside the right side box 4, and the feeding block 9 is slidably connected to the second sliding hole. A bearing block 11 is fixedly connected to the outer wall of the feeding pipe 2, and the feeding block 9 is slidably connected to the bearing block 11. The movement direction of the guide concave block 7 is opposite to the movement direction of the feeding block 9. An inclined guide plate 10 is attached to the inner wall of the mixing box 1, one end of the inclined guide plate 10 is connected to the mixing box 1, and the other end of the inclined guide plate 10 is attached to the feeding pipe 2.

[0041] The mixing mechanism includes a protective box 12 with a bottom opening, a first drive motor, a mixing main shaft 13, several mixing main blocks 14 equidistantly arranged along the length of the mixing main shaft 13, and auxiliary stirring components symmetrically arranged on both sides of the mixing main shaft 13; the protective box 12 is fixedly connected to the top of the mixing box 1; the first drive motor is fixedly connected to the inner wall of the protective box 12; the mixing main shaft 13 is rotatably connected to the mixing box 1, and the mixing main shaft 13 is fixedly connected to the output shaft of the first drive motor; the mixing main blocks 14 are located inside the mixing box 1, and the mixing main blocks 14 are fixedly connected to the mixing main shaft 13.

[0042] The auxiliary stirring assembly includes a second drive motor, an auxiliary stirring shaft 15, and a plurality of auxiliary stirring blocks 16 equidistantly arranged along the length of the auxiliary stirring shaft 15; the second drive motor is fixedly connected to the inner wall of the protective box 12; the auxiliary stirring shaft 15 is rotatably connected to the mixing box 1, and the auxiliary stirring shaft 15 is fixedly connected to the output shaft of the second drive motor; the auxiliary stirring blocks 16 are located inside the mixing box 1, the auxiliary stirring blocks 16 are fixedly connected to the auxiliary stirring shaft 15, and the auxiliary stirring blocks 16 are located between two adjacent mixing main blocks 14.

[0043] It also includes a vibrating guide assembly; the vibrating guide assembly includes a shaking block 17, a plurality of linked shaking blocks 18 equidistantly arranged along the width direction of the feed pipe 2, and a power unit for driving the shaking block 17 to perform vertical reciprocating motion; the shaking block 17 is fixedly connected to the inclined guide plate 10; a groove 19 is opened on the mixing box 1, and the inclined guide plate 10 is slidably connected to the groove 19; the two ends of the linked shaking block 18 are respectively fixedly connected to the two inclined guide plates 10, and the linked shaking block 18 is located above the feed pipe 2.

[0044] It also includes a top block 20 fixed to the auxiliary screen block 8 and a drive unit for driving the auxiliary screen block 8 to make vertical reciprocating motion; the auxiliary screen block 8 is slidably connected to the guide recess 7, and the auxiliary screen block 8 can make vertical motion in the first sliding hole; a number of pushing parts are equidistantly arranged along the length direction of the connecting block 18; the pushing part includes a bottom block 21, an auxiliary connecting block fixed to the bottom block 21, and pushing units symmetrically arranged on both sides of the bottom block 21; the bottom block 21 is fixed to the connecting block; the pushing unit includes a pushing block 22 and a first spring; the pushing block 22 is hinged to the bottom block 21; the two ends of the first spring are respectively connected to the pushing block 22 and the auxiliary connecting block; the movement direction of the bottom block 21 is opposite to the movement direction of the auxiliary screen block 8; the pushing block 22 is located on the movement trajectory of the top block 20; during the movement of the top block 20, when the top block 20 contacts the pushing block 22, the pushing block 22 can swing back and forth under the combined action of the top block 20 and the first spring.

[0045] It also includes a linkage cleaning unit; the linkage cleaning unit includes a linkage brush 23, a linkage vibrating block 24, and a wall groove opened on the feed pipe 2; the wall groove is located above the first sliding hole and communicates with the first sliding hole; one end of the linkage brush 23 is fixedly connected to the wall groove, and the other end of the linkage brush 23 abuts against the auxiliary screen block 8; the linkage vibrating block 24 is fixedly connected to the first sliding hole and is located on the movement trajectory of the auxiliary screen block 8.

[0046] The feeding hole assembly includes several feeding holes 45 equidistantly arranged along the width direction of the feeding pipe 2; it also includes hole wall cleaning sections symmetrically arranged on both sides of the feeding pipe 2 along the length direction of the feeding pipe 2; the hole wall cleaning section includes several hole wall cleaning units equidistantly arranged along the width direction of the feeding pipe 2; the hole wall cleaning unit includes a hole rod 25, several cleaning rods 26 equidistantly fixed to the hole rod 25 along the length direction of the feeding pipe 2, and a through hole in the feeding block 9; the through hole communicates with the feeding holes 45; one end of the hole rod 25 is connected to the feeding pipe 2, and the other end of the hole rod 25 extends into the through hole; the hole rod 25 is located on the movement trajectory of the feeding hole 45; during the relative movement of the feeding hole 45 and the cleaning rods 26, the cleaning rods 26 can adhere to the hole wall of the feeding hole 45.

[0047] The hole wall cleaning unit also includes a power hole on the feed pipe 2 and a drive component for driving the hole rod 25 to reciprocate along the length of the feed pipe 2; the hole rod 25 is slidably connected to the power hole.

[0048] It also includes an auxiliary vibration section; the auxiliary vibration block 29 includes an auxiliary vibration groove and an auxiliary vibration unit opened on the feed pipe 2; the auxiliary vibration block 29 is located between the first sliding hole and the second sliding hole, and the auxiliary vibration groove is connected to the first sliding hole and the second sliding hole respectively; the auxiliary vibration unit includes an auxiliary concave block 27, a lifting block 28, a number of auxiliary vibration blocks 29 fixed on the lifting block 28, and an auxiliary component for driving the lifting block 28 to perform vertical reciprocating motion; the auxiliary concave block 27 is fixedly connected to the auxiliary vibration groove; the lifting block 28 is slidably connected to the auxiliary concave block 27; the feed block 9 is located on the movement trajectory of the auxiliary vibration block 29.

[0049] The power assembly includes a power shaft 30, a first gear 31, a first rack 32, a second rack 33, and a groove on the top of the feed block 9; the power shaft 30 is rotatably connected to the auxiliary recess 27; the first gear 31 is fixedly connected to the power shaft 30; the first rack 32 is fixedly connected to the bottom of the auxiliary screen block 8, and the first rack 32 meshes with the first gear 31; the second rack 33 is fixedly connected to the groove, and the second rack 33 meshes with the first gear 31.

[0050] The power unit includes a rotating shaft 34, a first cam 35, a second spring, and a power component for driving the rotating shaft 34 to rotate; the rotating shaft 34 is rotatably connected to the left side box 3; the first cam 35 is fixedly connected to the rotating shaft 34 and abuts against the shaking block 17; the two ends of the second spring are respectively connected to the inclined guide plate 10 and the mixing box 1.

[0051] The drive unit includes a second cam 36, a drive block 37, a third spring, and a fourth spring; the second cam 36 is fixedly connected to the power shaft 30; the drive block 37 is slidably connected to the auxiliary recess 27, and the two ends of the drive block 37 abut against the second cam 36 and the auxiliary screen block 8, respectively; the two ends of the third spring are connected to the drive block 37 and the auxiliary recess 27, respectively; and the two ends of the fourth spring are connected to the auxiliary screen block 8 and the guide recess 7, respectively.

[0052] It also includes a linkage component; the linkage component includes a side block 38, a linkage block 39, and a fifth spring; the side block 38 is fixedly connected to the linkage block 39, and the side block 38 abuts against the first cam 35; the two ends of the fifth spring are fixedly connected to the linkage block 39 and the outer wall of the feed tube 2 respectively; the driving component is a power block; the two ends of the power block are fixedly connected to the hole rod 25 and the linkage block 39 respectively.

[0053] The auxiliary component is a sixth spring; the two ends of the sixth spring are connected to the auxiliary concave block 27 and the lifting block 28 respectively; the lifting block 28 abuts against the second cam 36.

[0054] The power component is a power servo motor 40; the power servo motor 40 is fixedly connected to the left side box 3; the rotating shaft 34 is fixedly connected to the output shaft of the power servo motor 40.

[0055] The drive assembly includes a second gear 41, a limiting block 42, a third rack 43, and an inner groove on the long block; the second gear 41 is fixedly connected to the rotating shaft 34; the limiting block 42 is fixedly connected to the outer wall of the feed tube 2; the third rack 43 is slidably connected to the limiting block 42, the third rack 43 is fixedly connected to the long block, and the third rack 43 meshes with the second gear 41.

[0056] Several side vibrating blocks 44 are provided along the width direction of the feeding block 9; the side vibrating blocks 44 are located between two adjacent hole rods 25, and the inner wall of the feeding pipe 2 is located on the movement trajectory of the side vibrating blocks 44.

[0057] Specific implementation process:

[0058] The materials to be mixed are fed into the mixing box 1 through the feed hopper 6. The first drive motor drives the main mixing block 14 to rotate, and the second drive motor drives the auxiliary mixing block 16 to rotate. This allows for thorough mixing of the raw materials of the three-way catalyst and generates multi-dimensional turbulent flow, ensuring that the active components of the three-way catalyst are fully dispersed in the matrix, preventing segregation and ensuring consistent performance of each batch of catalyst. Furthermore, during the mixing process, the inclined guide plate 10 creates a guiding effect, preventing high-viscosity catalyst raw materials from bridging or clogging at the outlet, ensuring a continuous and uniform discharge process without interruption or jamming.

[0059] After the material is fully mixed, the sealing cap is removed and the power servo motor 40 is started, which in turn drives the rotating shaft 34 to rotate. During the rotation of the rotating shaft 34, the second gear 41 meshes with the third rack 43, which in turn drives the auxiliary screen block 8 to reciprocate along the length of the feed pipe 2.

[0060] By reciprocating along the length of the feed pipe 2 using the auxiliary screen block 8, vibration and displacement can prevent the three-way catalyst material from adhering to or getting stuck in the screening holes, thus maintaining a smooth feed channel. Furthermore, the reciprocating motion can adjust the material throughput, preventing excessive instantaneous flow and ensuring more stable and controllable feeding for subsequent processes.

[0061] During the movement of the auxiliary screen block 8, the first rack 32 meshes with the first gear 31, which in turn drives the power shaft 30 to rotate. During the rotation of the first gear 31, the first gear 31 meshes with the second rack 33, which in turn drives the feed block 9 to reciprocate along the length of the feed pipe 2.

[0062] The alternating movement of the auxiliary screen block 8 and the feeding block 9 can agitate the material inside the feeding pipe 2, preventing catalyst powder from bridging, adhering, and accumulating inside the pipe, ensuring smooth feeding throughout the process. Secondly, the periodic feeding agitation can move the catalyst material remaining at the bottom of the tank, preventing long-term static accumulation and reducing cross-contamination between different batches of material. Furthermore, the alternating and linked material control mode can regulate the instantaneous feeding amount, preventing large fluctuations in the material level inside the mixing tank 1, ensuring that the mixing main block 14 on the mixing main shaft 13 and the auxiliary stirring block 16 on the auxiliary stirring shaft 15 are always within the optimal stirring load range, guaranteeing stable stirring.

[0063] During the movement of the feeding block 9, the side vibrating block 44 moves synchronously. The side vibrating block 44 can continuously disturb the three-way catalyst material inside the pipe, destroy the powder bridging structure, break up locally agglomerated particles, prevent the material from accumulating inside the pipe, and ensure continuous and smooth feeding. Secondly, during the movement of the side vibrating block 44, it can periodically impact and adhere to the inner wall of the feeding pipe 2, causing the pipe wall to vibrate slightly, shaking off the fine powder adhering to the pipe wall, eliminating dead corners of material accumulation on the pipe wall, and preventing the material from adhering and caking for a long time.

[0064] During the rotation of the shaft 34, the first cam 35 rotates synchronously. During the rotation of the first cam 35, the vibrating block 17 can perform vertical reciprocating motion under the combined action of the first cam 35 and the second spring. During the movement of the vibrating block 17, the inclined guide plate 10 moves synchronously. The vertical reciprocating motion of the inclined guide plate 10 can drive the catalyst powder adhering to the surface of the guide plate to slide off, completely avoiding material caking and retention, and eliminating dead corners of material accumulation at the edges of the guide plate.

[0065] During the movement of the guide plate, the shaking block 18 can simultaneously agitate and break up the agglomerated catalyst particles, allowing the material to fall into the feed pipe 2 in a loose state, which greatly reduces the screening load of the subsequent auxiliary screen block 8.

[0066] During the movement of the auxiliary screen block 8, the first gear 31, through the meshing of the first rack 32, drives the power shaft 30 to rotate. During the rotation of the power shaft 30, the second cam 36 rotates synchronously. During the rotation of the second cam 36, the drive block 37, under the combined action of the second cam 36 and the third spring, can perform vertical reciprocating motion. During the movement of the drive block 37, the auxiliary screen block 8, under the action of the drive block 37 and the fourth spring, can reciprocate along the length direction of the guide recess 7.

[0067] The auxiliary screen block 8, with its vertical reciprocating motion and top block 20, can actively push aside agglomerated particles stuck in the feed pipe 2, thereby reducing the probability of blockage in the feed pipe 2 and significantly improving feeding efficiency. Furthermore, dynamic screening reduces static pressure and wear on the screen surface, while quickly discharging stuck particles, reducing localized stress on the screen surface and extending the service life of the auxiliary screen block 8.

[0068] Furthermore, the misaligned disturbance created by the reverse movement of the shaking block 18 and the auxiliary screen block 8 can simultaneously clear the accumulated material on the screen surface and in the area of ​​the feed pipe 2 port, completely preventing powder adhesion and jamming, and ensuring smooth feeding throughout the process. The pusher block 22 swings in conjunction with the top block 20, which can directly destroy the powder bridging structure at the feed pipe 2 port, preventing material jamming from the source and further improving the continuous and smooth feeding.

[0069] Meanwhile, during the vertical reciprocating motion of the top block 20, when the top block 20 is in contact with the pusher block 22, the pusher block 22 can swing back and forth under the action of the top block 20 and the first spring. Therefore, the swinging of the pusher block 22 can further break up the agglomerated catalyst particles, allowing the loose material to fall into the feed pipe 2 in an orderly manner.

[0070] During the vertical reciprocating motion of the auxiliary screen block 8, it can vibrate with the vibrating block 24. Therefore, by utilizing the impact vibration between the auxiliary screen block 8 and the vibrating block 24, catalyst particles stuck in the screening holes can be quickly shaken off, preventing the screen holes from being blocked, maintaining a high opening rate, and significantly increasing the effective screening area.

[0071] When the auxiliary screen block 8 moves in a combined horizontal and vertical motion, the connecting brush 23 can precisely extend into the interior of each screening hole, thoroughly removing catalyst particles stuck deep within the channels, achieving a complete cleaning without dead angles. Furthermore, the connecting brush 23 is abutted against at different positions of the auxiliary screen block 8, allowing the connecting brush 23 to adapt to its deformation, perfectly conforming to the contour of the screen surface, scraping off fine powder adhering to the screen surface, and avoiding localized material accumulation.

[0072] During the movement of the feed block 9, the orifice rod 25 can gradually extend into the feed hole 45. Therefore, during the reciprocating motion of the orifice rod 25 relative to the feed hole 45, it can directly extend into the inside of the channel and, in cooperation with the cleaning rod 26, completely push out the catalyst clump stuck deep in the hole, thus fully removing the material stuck in the hole.

[0073] During the rotation of the first cam 35, the side block 38, under the combined action of the first cam 35 and the fifth spring, can drive the orifice rod 25 to reciprocate along the length of the feed pipe 2. Through the axial reciprocating motion of the orifice rod 25 with multiple cleaning rods 26 along the feed pipe 2, the three-way catalyst material retained inside the pipe can be disturbed, disrupting the powder bridging structure, preventing material from adhering and accumulating on the pipe wall, allowing loose material to be smoothly conveyed downwards, and clearing the feed channel in advance. Furthermore, the orifice rod 25, carrying the cleaning rods 26, gradually extends into the feed hole 45, further scraping away residual fine powder from the entire section of the hole wall, completely removing clumps stuck in the hole, and completely eliminating the potential for material accumulation inside the hole.

[0074] During the rotation of the second cam 36, the lifting block 28 can make vertical reciprocating motion under the combined action of the second cam 36 and the sixth spring, which can drive the auxiliary vibrating block 29 to continuously hit the feeding block 9 and generate vibration, thereby quickly detaching the three-way catalyst fine powder adhering to the inner wall of the rectangular feeding hole 45 and the surface of the feeding block 9, and avoiding material caking and accumulation.

[0075] In summary, relying on the staggered arrangement of the main mixing block 14 and the auxiliary mixing block 16, uniform mixing without blind spots is achieved throughout the entire area, ensuring that the active components are fully dispersed. Then, through the reverse alternating motion of the inclined guide plate 10, the auxiliary screen block 8, and the discharge block 9, combined with the coordinated action of multiple sets of unblocking components such as the connecting brush 23, the orifice rod 25, and the auxiliary vibrating block 29, the entire process from mixing to discharge is completed without the need for excessive additional power. This achieves the effects of anti-adhesion, no material accumulation, high-efficiency screening, and continuous and stable discharge, which is highly suitable for the production process requirements of special powders such as three-way catalysts that are prone to agglomeration and pore blockage.

[0076] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A mixer for preparing a three-way catalyst, comprising a mixing box with a bottom opening, a feeding pipe, a left box with side walls and a top opening, and a right box with side walls and a top opening; the feeding pipe is located between the left box and the right box; the feeding pipe, the left box, and the right box are all fixedly connected to the mixing box; support columns are fixedly connected to both the left box and the right box; a feed inlet is opened at the top of the mixing box; characterized in that: It also includes a feeding mechanism and a mixing mechanism installed in the mixing tank for mixing materials; the feeding mechanism includes a guide concave block, an auxiliary screen block, a feeding block, inclined guide plates symmetrically arranged on both sides of the mixing tank, several screening holes on the auxiliary screen block, a group of feeding holes symmetrically opened on both sides of the feeding block along the length of the feeding pipe, guide holes opened on the feeding pipe, a first sliding hole opened on the feeding pipe, a second sliding hole opened on the feeding pipe, a drive assembly for driving the guide concave block to reciprocate along the length of the feeding pipe, and a... A power component that drives the feeding block to reciprocate along the length of the feeding pipe; a guide concave block and a guide hole are slidably connected; an auxiliary screen block is located inside the feeding pipe, one end of the auxiliary screen block is connected to the guide concave block, and the other end of the auxiliary screen block passes through the first sliding hole; the feeding block is located inside the right side box, and the feeding block is slidably connected to the second sliding hole; the movement direction of the guide concave block is opposite to the movement direction of the feeding block; the inclined guide plate is attached to the inner wall of the mixing box, one end of the inclined guide plate is connected to the mixing box, and the other end of the inclined guide plate is attached to the feeding pipe.

2. The mixer for preparing a three-way catalyst according to claim 1, characterized in that: It also includes a vibrating guide assembly; the vibrating guide assembly includes a shaking block, several linked shaking blocks equidistantly arranged along the width direction of the feed pipe, and a power unit for driving the shaking block to perform vertical reciprocating motion; the shaking block is fixedly connected to the inclined guide plate; the inclined guide plate is slidably connected to the mixing box; and the two ends of the linked shaking block are respectively fixedly connected to the two inclined guide plates.

3. The mixer for preparing a three-way catalyst according to claim 2, characterized in that: It also includes a top block fixed to the auxiliary screen block and a drive unit for driving the auxiliary screen block to make vertical reciprocating motion; the auxiliary screen block is slidably connected to the guide concave block, and the auxiliary screen block can make vertical movement in the first sliding hole; a number of pushing parts are equidistantly arranged along the length direction of the connecting block; the pushing part includes a bottom block, an auxiliary connecting block fixed to the bottom block, and pushing units symmetrically arranged on both sides of the bottom block; the bottom block is fixed to the connecting block; the pushing unit includes a pushing block and a first spring; the pushing block is hinged to the bottom block; the two ends of the first spring are respectively connected to the pushing block and the auxiliary connecting block; the movement direction of the bottom block is opposite to the movement direction of the auxiliary screen block; the pushing block is located on the movement trajectory of the top block.

4. The mixer for preparing a three-way catalyst according to claim 3, characterized in that: It also includes a linkage cleaning unit; the linkage cleaning unit includes a linkage brush, a linkage vibrating block, and a wall groove opened on the feed pipe; the wall groove communicates with the first sliding hole; one end of the linkage brush is fixedly connected to the wall groove, and the other end of the linkage brush abuts against the auxiliary screen block; the linkage vibrating block is fixedly connected to the first sliding hole, and the linkage vibrating block is located on the movement trajectory of the auxiliary screen block.

5. The mixer for preparing a three-way catalyst according to claim 1, characterized in that: The feeding hole assembly includes several feeding holes equidistantly arranged along the width direction of the feeding pipe; it also includes hole wall cleaning sections symmetrically arranged on both sides of the feeding pipe along the length direction of the feeding pipe; the hole wall cleaning section includes several hole wall cleaning units equidistantly arranged along the width direction of the feeding pipe; the hole wall cleaning unit includes a hole rod, several cleaning rods equidistantly fixed to the hole rod along the length direction of the feeding pipe, and a through hole opened in the feeding block; the through hole communicates with the feeding hole; one end of the hole rod is connected to the feeding pipe, and the other end of the hole rod extends into the through hole.

6. The mixer for preparing a three-way catalyst according to claim 5, characterized in that: The hole wall cleaning unit also includes a power hole on the feed pipe and a drive component for driving the hole rod to reciprocate along the length of the feed pipe; the hole rod is slidably connected to the power hole.

7. The mixer for preparing a three-way catalyst according to claim 3, characterized in that: It also includes an auxiliary vibration section; the auxiliary vibration block includes an auxiliary vibration groove and an auxiliary vibration unit opened on the feed pipe; the auxiliary vibration groove is connected to the first sliding hole and the second sliding hole respectively; the auxiliary vibration unit includes an auxiliary concave block, a lifting block, several auxiliary vibration blocks fixed on the lifting block, and an auxiliary component for driving the lifting block to make vertical reciprocating motion; the auxiliary concave block is fixedly connected to the auxiliary vibration groove; the lifting block is slidably connected to the auxiliary concave block; the feed block is located on the motion trajectory of the auxiliary vibration block.

8. The mixer for preparing a three-way catalyst according to claim 7, characterized in that: The power assembly includes a power shaft, a first gear, a first rack, a second rack, and a groove on the feed block; the power shaft is rotatably connected to an auxiliary recess; the first gear is fixedly connected to the power shaft; the first rack is fixedly connected to the auxiliary screen block and meshes with the first gear; the second rack is fixedly connected to the groove and meshes with the first gear.

9. A mixer for preparing a three-way catalyst according to claim 8, characterized in that: The power unit includes a rotating shaft, a first cam, a second spring, and a power component for driving the rotating shaft to rotate; the rotating shaft is rotatably connected to the left side box; the first cam is fixedly connected to the rotating shaft and abuts against the shaking block; the two ends of the second spring are respectively connected to the inclined guide plate and the mixing box.

10. A mixer for preparing a three-way catalyst according to claim 9, characterized in that: The drive unit includes a second cam, a drive block, a third spring, and a fourth spring; the second cam is fixedly connected to the power shaft; the drive block is slidably connected to the auxiliary recess, and the two ends of the drive block abut against the second cam and the auxiliary screen block, respectively; the two ends of the third spring are connected to the drive block and the auxiliary recess, respectively; and the two ends of the fourth spring are connected to the auxiliary screen block and the guide recess, respectively.

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