Integral catalyst integrated coating device

Abstract

The utility model discloses an integral catalyst integrated coating device, and relates to the technical field of chemical equipment, the integral catalyst integrated coating device comprises a device shell, a raw material tank, an ultrasonic dispersion device, a coating nozzle, a drying nozzle, a screw rod and a converter, a liquid level display meter is arranged in the raw material tank, and a groove is formed in the upper part of the raw material tank; the coating nozzle and the drying nozzle are arranged on the converter, the slurry is uniformly dispersed by utilizing ultrasonic waves, and the liquid level is detected in real time through the liquid level display meter, so that the safety in the stirring process is ensured; the servo motor is used for supplying power, the device achieves lifting and coating and drying nozzle switching through the lead screw and the converter, slurry is evenly distributed on the hole wall, the service life of a catalyst is prolonged, the coating and drying time is shortened, the residual coating slurry is recycled through the groove, and the cost is reduced. The device is suitable for honeycomb ceramic plates of different shapes and sizes, organic combination of ultrasonic dispersion, coating and drying of the slurry is achieved in the coating process, tedious steps in the coating process are reduced, and loss of the slurry is avoided.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and more specifically, to an integrated catalyst coating device. Background Technology

[0002] In existing technologies, when preparing catalyst slurries for honeycomb ceramic supports, the method often involves immersing the support in the slurry and then using compressed air to blow away excess slurry from the substrate pores and outer surface. This method results in the waste and high cost of unrecovered excess slurry. Furthermore, prolonged coating of the slurry at the bottom of the tank can lead to sedimentation and accumulation, reducing the concentration of effective components and making subsequent cleaning difficult. Additionally, the process of blowing away excess slurry from the substrate can cause pore blockage, affecting the activity of the coated catalyst.

[0003] Catalysts prepared by single-coating allow for sufficient contact between reactant gas molecules and the catalyst, and can save on the amount of active components and reduce costs. However, the coating's adhesion and wear resistance are not ideal, and the erosion caused by airflow can lead to the loss of active components, thus reducing the catalyst's lifespan. While existing technologies employ double-coating, which often involve drying the coated honeycomb ceramic carrier with other equipment for recoating, resulting in better adhesion of the active components, the process is cumbersome and time-consuming. Therefore, to address the aforementioned technical problems, this paper proposes an integrated catalyst coating device. Utility Model Content

[0004] The purpose of this invention is to provide an integrated catalyst coating device that enables the ultrasonic dispersion, coating, and drying of the coating slurry to be completed within the same reaction device, achieving more uniform coverage of the pores compared to manual coating. This not only reduces the cumbersome steps in the coating process but also avoids slurry loss, lowers costs, extends catalyst lifespan, and improves efficiency.

[0005] This utility model is achieved through the following technical solution:

[0006] An integrated catalyst coating device includes:

[0007] The device housing has a raw material tank at its bottom, an ultrasonic dispersion device is fixedly installed on the inner side of the raw material tank, a discharge port is opened on the lower side of the raw material tank, and a first inlet is opened on the outer side of the device housing.

[0008] A level indicator is fixedly connected to the outside of the raw material tank, and a second feed inlet is provided at the end of the level indicator;

[0009] A groove is formed at the top of the raw material tank, and a gasket is provided on the upper side of the groove;

[0010] A fixing device is fixedly connected to the inside of the device housing, and a lifting mechanism is installed on one side of the fixing device;

[0011] The converter is installed below the slider. A servo motor is fixedly connected to the upper side of the slider. The servo motor and the converter are fixedly connected. A coating nozzle and a drying nozzle are symmetrically fixedly installed at the bottom of the converter.

[0012] Preferably, the bottom of the gasket is fixedly connected to a base.

[0013] Preferably, a cover is provided on the upper side of the second feed inlet.

[0014] Preferably, the first feed inlet is externally rotatably connected to a handle.

[0015] Preferably, the lifting mechanism includes a lead screw and a slider, the lead screw being fixedly connected to the inner side of the fixture, and the slider being threadedly connected to the outer side of the lead screw.

[0016] Preferably, the fixture has a groove on its exterior, and the slider is slidably connected to the inside of the groove.

[0017] Preferably, the openings of the coating nozzle and the drying nozzle are funnel-shaped.

[0018] Preferably, mounting plates are fixedly connected to both sides of the device housing, and an electric push rod is fixedly connected to the outside of the mounting plate. A striking block is fixedly connected to the end of the electric push rod, and the striking block is close to the outer wall of the device housing.

[0019] The technical solution of this utility model has at least the following beneficial effects:

[0020] 1. This utility model device effectively integrates the three major steps of slurry dispersion, coating process and drying process. While saving manpower and material resources, it not only reduces reaction steps and reaction losses, but also facilitates cleaning.

[0021] 2. This utility model improves the traditional slurry dispersion method. The raw materials and deionized water are dispersed by an ultrasonic dispersion device around the raw material tank. Intermittent stirring ensures uniform dispersion of the medium, prevents the deposition of effective components, and avoids poor catalyst activity after coating due to excessive coating time or insufficient stirring. At the same time, a liquid level display is used to detect the liquid level, which not only makes the medium more dispersed, but also ensures the safety of the equipment during operation.

[0022] 3. This utility model further improves the spraying and slurry blowing and suction device. It uses a coating nozzle for slurry spraying. The trumpet-shaped nozzle makes the slurry evenly distributed on the honeycomb ceramic carrier. The cold airflow of the drying nozzle makes the slurry evenly distributed on the honeycomb ceramic pore wall. The hot airflow of the drying nozzle dries the slurry. While the slurry is evenly distributed on the pore wall, the cost is reduced.

[0023] 4. This utility model further improves the raw material tank by using a groove to collect uncoated slurry, thereby reducing the waste of catalytic slurry. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the lifting and rotating coating device of this utility model;

[0026] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0027] Figure 4 This is a frontal view of the nozzle of this utility model;

[0028] Icons: 1. Gasket; 2. Groove; 3. Ultrasonic dispersion device; 4. Discharge port; 5. Base; 6. Second feed port; 7. Cover; 8. Device housing; 9. First feed port; 10. Slide rail; 11. Lead screw; 12. Coating nozzle; 13. Fixture; 14. Servo motor; 15. Converter; 16. Drying nozzle; 17. Handle; 18. Mounting plate; 19. Liquid level indicator; 20. Raw material tank; 21. Slider; 22. Electric push rod; 23. Impact block. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] Example

[0031] Please see Figure 1-4This application discloses an integrated catalyst coating device, comprising a housing 8, a level indicator 19, a groove 2, a fixture 13, and a converter 15. A raw material tank 20 is located at the bottom of the housing 8. An ultrasonic dispersion device 3 is fixedly installed inside the raw material tank 20. An outlet 4 is provided on the lower side of the raw material tank 20 for slurry recovery and wastewater discharge. A first inlet 9 is provided on the outside of the housing 8. The level indicator 19 is fixedly connected to the outside of the raw material tank 20, and a [missing information - likely a typo, should be "…"] is provided at its end. The second feed inlet 6; the groove 2 is opened at the top of the raw material tank 20, and the upper side of the groove 2 is provided with a gasket 1 to protect the honeycomb ceramic carrier; the fixture 13 is fixedly connected to the inner side of the device housing 8, and a lifting mechanism is installed on one side of the fixture 13; the converter 15 is installed below the slider 21, and the upper side of the slider 21 is fixedly connected to the servo motor 14. The servo motor 14 and the converter 15 are fixedly connected. The bottom of the converter 15 is symmetrically fixedly equipped with a coating nozzle 12 and a drying nozzle 16, and the position of the working nozzle can be changed by rotation.

[0032] The bottom of the gasket 1 is fixedly connected to the base 5.

[0033] A cover 7 is provided on the upper side of the second feed port 6, which can maintain airtightness during the coating process.

[0034] The first feed inlet 9 has an external rotating connection with a handle 17.

[0035] The lifting mechanism includes a lead screw 11 and a slider 21. The lead screw 11 is fixedly connected to the inner side of the fixture 13, and the slider 21 is threadedly connected to the outer side of the lead screw 11. The converter 15 is driven to move up and down in the slide groove 10 through the lead screw 11 and the slider 21.

[0036] The fixture 13 has a groove 10 on its outside, and the slider 21 is limited and slidably connected to the inside of the groove 10.

[0037] The openings of the coating nozzle 12 and the drying nozzle 16 are funnel-shaped.

[0038] Mounting plates 18 are fixedly connected to both sides of the device housing 8. An electric push rod 22 is fixedly connected to the outside of the mounting plate 18. A striking block 23 is fixedly connected to the end of the electric push rod 22, and the striking block 23 is close to the outer wall of the device housing 8.

[0039] The working principle of the integrated catalyst coating device based on the embodiment is as follows: After the device is started and the power is connected, the operator operates according to the established procedure. First, the cover 7 at the top of the raw material tank 20 is opened, and a certain amount of catalyst powder, a certain amount of deionized water, and 10-50 wt% polyethylene glycol solution are added to the raw material tank 20 in sequence through the precisely configured second feed port 6. During this process, the operator will closely monitor the real-time feedback of the liquid level display 19 to ensure that the liquid level is maintained within the preset safe range, thereby preventing overflow or insufficient conditions. After all raw materials are added, the cover 7 will be tightly closed to ensure the airtightness of the entire system and provide a stable environment for subsequent dispersion processing.

[0040] Subsequently, the ultrasonic dispersion device 3 is started, using the strong vibration effect of ultrasound to efficiently and uniformly disperse the mixture in the raw material tank 20. This step is crucial for forming a stable and high-quality slurry. It can effectively prevent the agglomeration of catalyst powder and ensure its uniform distribution in the liquid. At the same time, through intermittent dispersion operation, it can also effectively avoid the deposition of active ingredients, laying a solid foundation for the subsequent coating process.

[0041] After the slurry is evenly dispersed, the operator places the honeycomb ceramic carrier to be coated into the groove 2 at the top of the raw material tank 20. The groove 2 is designed with a special gasket 1 to support the ceramic carrier and collect excess slurry. Then, under the precise control of the servo motor 14, the converter 15 and the coating nozzle 12 and drying nozzle 16 below it begin to descend until they reach the predetermined coating position. During this process, the coating nozzle 12 first draws the slurry from the raw material tank 20 through a pump and then sprays it evenly onto the upper part of the honeycomb ceramic carrier. After the coating is completed, the nozzle quickly switches to the drying mode, and the slurry is evenly adhered to the pipe wall by the compressed air of the cold airflow. At the same time, the substrate coated with slurry is dried by the hot airflow at a suitable temperature.

[0042] After the first coating is completed, the device will perform the slurry dispersion and coating process again to achieve a second coating, thereby ensuring that the thickness and uniformity of the coating layer meet the design requirements. After the coating is completed, the servo motor 14 will start again to raise the converter 15, coating nozzle 12 and drying nozzle 16 to the top of the device. At this time, the operator can easily take out the coated honeycomb ceramic carrier by opening the first feed port 9.

[0043] After the coating task is completed, the device will also perform a series of cleaning operations. First, the remaining slurry is discharged through the discharge port 4 for recycling. Then, sufficient clean water is injected into the device, and the ultrasonic dispersion device 3 is restarted to thoroughly clean the raw material tank 20. At the same time, the pump is used to extract clean water from the raw material tank 20 to clean the pipes and nozzles. Finally, the converter 15, coating nozzle 12 and drying nozzle 16 are lowered to the position of the pad 1 and groove 2 for cleaning by the drive of the servo motor 14, ensuring the cleanliness and hygiene of the entire system. After cleaning, the discharge port 4 is opened to release the cleaning waste liquid to complete the entire operation process.

[0044] In summary, this integrated catalyst coating device achieves efficient and precise control of the automated operation process by integrating the three core steps of slurry dispersion, coating, and drying. At the same time, by adopting advanced ultrasonic dispersion technology and precise servo motor control, it ensures that the quality and uniformity of the coating layer meet the design requirements. In addition, the device is easy to clean and maintain, providing a more convenient, efficient, and reliable solution for the catalyst coating process.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated catalyst coating device, characterized in that, include: The device housing (8) has a raw material tank (20) at its bottom. An ultrasonic dispersion device (3) is fixedly installed on the inner side of the raw material tank (20). A discharge port (4) is opened on the lower side of the raw material tank (20). A first feed port (9) is opened on the outer side of the device housing (8). A level indicator (19) is fixedly connected to the outside of the raw material tank (20), and a second feed port (6) is provided at the end of the level indicator (19). A groove (2) is provided on the top of the raw material tank (20), and a gasket (1) is provided on the upper side of the groove (2). A fixture (13) is fixedly connected to the inner side of the device housing (8). A lifting mechanism is installed on one side of the fixture (13). The lifting mechanism includes a lead screw (11) and a slider (21). The lead screw (11) is fixedly connected to the inner side of the fixture (13), and the slider (21) is threadedly connected to the outer side of the lead screw (11). The converter (15) is installed below the slider (21). A servo motor (14) is fixedly connected to the upper side of the slider (21). The servo motor (14) and the converter (15) are fixedly connected. A coating nozzle (12) and a drying nozzle (16) are symmetrically fixedly installed at the bottom of the converter (15).

2. The integrated catalyst coating device according to claim 1, characterized in that: The bottom of the gasket (1) is fixedly connected to the base (5).

3. The integrated catalyst coating device according to claim 1, characterized in that: A cover (7) is provided on the upper side of the second feed inlet (6).

4. The integrated catalyst coating device according to claim 1, characterized in that: The first feed port (9) has a handle (17) externally rotatably connected.

5. The integrated catalyst coating device according to claim 1, characterized in that: The fixture (13) has a groove (10) on its outside, and the slider (21) is slidably connected to the inside of the groove (10).

6. The integrated catalyst coating device according to claim 1, characterized in that: The openings of the coating nozzle (12) and the drying nozzle (16) are funnel-shaped.

7. The integrated catalyst coating device according to claim 1, characterized in that: Mounting plates (18) are fixedly connected to both sides of the device housing (8). An electric push rod (22) is fixedly connected to the outside of the mounting plate (18). A striking block (23) is fixedly connected to the end of the electric push rod (22), and the striking block (23) is close to the outer wall of the device housing (8).

Images