Silicon carbide powder pickling device

Abstract

The utility model provides a silicon carbide powder pickling device, which relates to the field of silicon carbide processing, and comprises a plurality of supporting legs, the outer surface of each supporting leg is fixedly connected with a first bracket, and the equipment comprises a transmission system consisting of a first motor, a transmission rod, a rotating disc, a rotating rod, a push-pull rod, a limiting bracket, a transmission arm and the like. Complex and accurate relative movement of the first bulkhead and the second bulkhead is achieved, compared with existing equipment, the transmission design can more effectively break the agglomeration phenomenon of powder in the acid pickling process, it is ensured that each powder can be fully exposed in acid liquor, the uniformity and thoroughness of acid pickling are greatly improved, and the production efficiency is improved. By means of the synergistic effect, the powder and the acid liquor can be more fully mixed within a shorter time, the pickling reaction process is accelerated, the pickling efficiency is remarkably improved, the powder can be promoted to rapidly pass through the screen through the motion modes of swinging, vibration and the like of the partition frame, and the period of the whole pickling technological process is greatly shortened.

Description

Technical Field

[0001] This utility model relates to the technical field of a silicon carbide powder pickling device, and more particularly to a silicon carbide powder pickling device. Background Technology

[0002] In the production and preparation of silicon carbide materials, the purity of silicon carbide powder plays a crucial role in the performance of the final product. However, impurities, such as metallic impurities and oxide impurities, are often introduced during the synthesis or processing of the powder. These impurities can seriously affect the electrical, optical, and mechanical properties of silicon carbide products. For example, metallic impurities may degrade the electrical performance of silicon carbide semiconductor devices, reducing key parameters such as carrier mobility and breakdown voltage; while oxide impurities may form defects during subsequent high-temperature processing, affecting the structural integrity and strength of the material.

[0003] Due to the lack of an effective stirring and dispersing mechanism, the powder tends to agglomerate, resulting in some powder not being able to fully contact the acid solution, which greatly reduces the pickling effect. Traditional pickling equipment also has shortcomings in the recovery and treatment of acid solution, which can easily cause environmental pollution and waste of acid solution. In addition, if the residual acid solution and moisture cannot be removed quickly and effectively during the cleaning and drying process of the powder after pickling, the powder may be re-contaminated or undergo chemical reactions such as hydrolysis, which will further affect the purity and quality of the powder. Summary of the Invention

[0004] This utility model and its equipment utilize a transmission system comprised of a first motor, a transmission rod, a rotating disk, a rotating rod, a push-pull rod, a limit bracket, and a transmission arm. This transmission design can more effectively break the agglomeration of powder during the pickling process, ensuring that each particle of powder is fully exposed to the acid solution, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a silicon carbide powder pickling device, comprising a silicon carbide powder pickling device structure including multiple support legs, a first bracket fixedly connected to the outer surface of each support leg, a second bracket fixedly installed on the outer surface of each support leg, a first motor fixedly installed on the top of the second bracket, a transmission rod fixedly connected to the output end of the first motor, a rotating disk fixedly connected to one end of the transmission rod, a rotating rod fixedly connected to the outer surface of the rotating disk, a push-pull rod rotatably connected to the outer surface of the rotating rod, two limiting brackets rotatably connected to the outer surface of the push-pull rod via a shaft, a second partition fixedly installed on the outer surface of the limiting bracket, multiple fixing rods fixedly installed at the bottom of the first bracket, a rotating shaft fixedly connected to the outer surface of each fixing rod, a transmission arm rotatably connected to the outer surface of each rotating shaft, and a first partition and a second partition rotatably connected to the outer surface of each transmission arm via a shaft.

[0006] Preferably, two fixing plates are fixedly installed on the opposite side of the first bracket, and a support plate is fixedly connected to the opposite side of each fixing plate. A second motor is fixedly installed on the top of the support plate, and a stirring rod is fixedly connected to the output end of the second motor.

[0007] Preferably, the top of the first partition frame is provided with a slot, and the top of the first bracket is fixedly installed with a feeding slide plate.

[0008] Preferably, a raised strip is slidably attached to the top of the second partition frame via a groove, and a partition plate is fixedly connected to the top of the raised strip.

[0009] Preferably, a screen is fixedly connected to the inner surface of the second partition, and a funnel is fixedly connected to the bottom of the first partition.

[0010] Preferably, the bottom of the funnel matches the top of the partition plate.

[0011] Preferably, the outer surface of the feeding slide plate matches the slot.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the equipment uses a transmission system composed of a first motor, transmission rod, rotating disk, rotating rod, push-pull rod, limit bracket, and transmission arm to achieve complex and precise relative movement between the first and second partition frames. Compared with existing equipment, this transmission design can more effectively break the agglomeration of powder during the pickling process, ensuring that each powder particle is fully exposed to the acid solution, greatly improving the uniformity and thoroughness of pickling. This synergistic effect enables the powder and acid solution to reach a more thorough mixing state in a shorter time, accelerating the pickling reaction process and significantly improving pickling efficiency. The swinging and vibration movements of the partition frames can promote the rapid passage of powder through the screen, greatly shortening the cycle of the entire pickling process.

[0014] 2. In this utility model, the structural design and working principle of the equipment enable it to adapt to the pickling treatment of silicon carbide powder with different batches and different quality requirements. By adjusting the operating parameters of the first and second motors, such as speed and rotation time, the stirring intensity, pickling time and sieving accuracy of the powder can be flexibly controlled to meet diverse production needs. Existing equipment may require more complex equipment adjustments or even fail to meet certain special requirements when processing powders of different specifications. The adaptability of this equipment can provide enterprises with more flexibility and convenience in the production process and reduce the cost of replacing equipment due to product changes or process adjustments. Attached Figure Description

[0015] Figure 1 This utility model provides a schematic diagram of the main structure of a silicon carbide powder pickling device;

[0016] Figure 2 This utility model provides a front view structural diagram of a silicon carbide powder pickling device;

[0017] Figure 3 This utility model provides a partial structural schematic diagram of a silicon carbide powder pickling device;

[0018] Figure 4 A bottom view of the structure of a silicon carbide powder pickling device is provided for this utility model;

[0019] Figure 5 This utility model provides a schematic diagram of the component structure of a silicon carbide powder pickling device.

[0020] Legend: 1. Support leg; 11. First bracket; 12. First partition frame; 13. Second partition frame; 14. Feeding slide plate; 15. Partition plate; 16. Protruding strip; 17. Screen; 18. Second bracket; 19. Groove; 2. First motor; 21. Transmission rod; 22. Rotating disk; 23. Rotating rod; 24. Push-pull rod; 25. Limiting bracket; 26. Funnel; 27. Transmission arm; 28. Rotating shaft; 29. ​​Fixing rod; 3. Fixing plate; 31. Erection plate; 32. Second motor; 33. Stirring roller. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] As attached Figure 1 -Appendix Figure 5 As shown, this utility model provides a technical solution: Figure 1As shown, the silicon carbide powder pickling device structure of this embodiment includes multiple support legs 1. A first bracket 11 is fixedly connected to the outer surface of each support leg 1. A second bracket 18 is fixedly installed on the outer surface of each support leg 1. A first motor 2 is fixedly installed on the top of the second bracket 18. A transmission rod 21 is fixedly connected to the output end of the first motor 2. A rotating disk 22 is fixedly connected to one end of the transmission rod 21. A rotating rod 23 is fixedly connected to the outer surface of the rotating disk 22. A push-pull rod 24 is rotatably connected to the outer surface of the rotating rod 23. Two limiting brackets 25 are rotatably connected to the outer surface of the push-pull rod 24 via a shaft. A second partition 13 is fixedly installed on the outer surface of the limiting brackets 25. Multiple fixing rods 29 are fixedly installed at the bottom of the first bracket 11. A rotating shaft 28 is fixedly connected to the outer surface of each fixing rod 29. A transmission arm is rotatably connected to the outer surface of each rotating shaft 28. 27. The outer surface of each transmission arm 27 is rotatably connected to the first partition 12 and the second partition 13 via a shaft. The first motor drives the transmission rod, rotating disk, rotating rod and push-pull rod and other components to move in a regular manner, thereby causing the silicon carbide powder in the pickling device to be continuously turned and stirred. This helps to ensure that the powder and pickling solution are in full contact, and that the pickling reaction can be carried out evenly in all parts of the powder, improving the pickling effect and making the removal of impurities from the powder more thorough and uniform. The continuous stirring can effectively prevent the silicon carbide powder from settling and accumulating at the bottom of the pickling container. In a static state, the powder is prone to accumulate at the bottom due to gravity, which can lead to problems such as insufficient local reaction. However, this moving structure of the device can keep the powder in a dynamic state at all times, always in a state where it can fully react with the pickling solution.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, two fixing plates 3 are fixedly installed on the opposite side of the first bracket 11. Each fixing plate 3 has a support plate 31 fixedly connected to its opposite side. A second motor 32 is fixedly installed on the top of the support plate 31. An agitator 33 is fixedly connected to the output end of the second motor 32. The agitator 33 with anti-corrosion and wear-resistant coating can effectively resist the corrosion of acid and the wear of powder, extend the service life of the agitator 33, and ensure that it maintains good agitation performance during long-term pickling operations. It continuously and fully stirs the silicon carbide powder in the first partition 12, making the powder and acid more uniformly mixed, accelerating the pickling reaction process, improving pickling efficiency and quality, reducing the frequency of replacement of parts due to damage to the agitator 33, and reducing production costs.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the top of the first partition 12 is provided with a slot 19, and the top of the first bracket 11 is fixedly installed with a feeding slide plate 14. The surface of the feeding slide plate 14 is polished to reduce the friction of silicon carbide powder during the feeding process, so that the powder can slide into the first partition 12 more smoothly, avoid the powder from accumulating or blocking on the slide plate, and ensure the uniformity and continuity of feeding.

[0026] like Figure 1 and Figure 4 As shown, a raised strip 16 is slidably attached to the top of the second partition frame 13 via a groove. A partition plate 15 is fixedly connected to the top of the raised strip 16. The raised strip 16 with a low coefficient of friction makes the second partition frame 13 slide more smoothly relative to the partition plate 15, reducing friction and energy loss. It also prevents particles from falling off and contaminating the powder due to friction. The sealing strip at the bottom of the partition plate 15 can effectively prevent acid from leaking from the gap between the partition plate 15 and the funnel 26, ensuring the sealing of the pickling process and preventing acid leakage from polluting the environment. It also ensures the stability of acid concentration and liquid level during the pickling process, which is conducive to improving the consistency and reliability of the pickling effect and ensuring the safe and environmentally friendly operation of the equipment.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a screen 17 is fixedly connected to the inner surface of the second partition 13, and a funnel 26 is fixedly connected to the bottom of the first partition 12. The screen 17 has a more uniform and precise aperture, which can more accurately screen out silicon carbide powder that meets the required particle size, thereby improving the screening accuracy and quality of the powder. The surface passivation treatment enhances the corrosion resistance of the screen 17, enabling it to remain stable in an acidic environment for a long time and not easily corroded or damaged, thus extending the service life of the screen 17, reducing downtime and costs caused by screen replacement, ensuring the efficient and stable operation of the device in the screening process, and providing a reliable guarantee for subsequent powder processing.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the bottom of the funnel 26 matches the top of the partition plate 15. The uniform and stable material transfer allows the powder to come into more full and uniform contact with the acid solution during pickling, preventing uneven pickling due to localized material jamming. This further improves the pickling quality of the product, ensuring that the final silicon carbide powder meets higher quality standards. This facilitates the smooth progress of subsequent silicon carbide material preparation processes and improves the performance and quality of the final product.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the outer surface of the feeding slide plate 14 and the slot 19 cooperate to ensure that the transmission path of silicon carbide powder remains smooth even in a oscillating environment. There will be no situation where the material is blocked at the bottom of the funnel or at the slot due to jamming or wear, so that the powder can continuously and stably enter from one stage to the next stage and smoothly enter the partition frame from the feeding slide plate for pickling.

[0030] Working principle: After the device is started, the first motor 2 starts to run, and its output end drives the transmission rod 21 to rotate, which in turn causes the rotating disk 22 to rotate. The rotating rod 23 on the rotating disk 22 then performs circular motion. Since the rotating rod 23 is rotatably connected to the push-pull rod 24, the push-pull rod 24 performs reciprocating linear motion under the action of the rotating rod 23. The push-pull rod 24 is rotatably connected to two limiting brackets 25 through a shaft, and the limiting brackets 25 are fixed on the second partition 13. In this way, the motion of the push-pull rod 24 is transmitted to the second partition 13, causing the second partition 13 to produce a corresponding displacement tendency. The rotating shaft 28 on the multiple fixed rods 29 at the bottom of the first bracket 11 is rotatably connected to the transmission arm 27. Next, the transmission arm 27 is connected to the shafts of the first partition frame 12 and the second partition frame 13 respectively. When the second partition frame 13 moves, the first partition frame 12 will also move accordingly with the help of the transmission arm 27 and the rotating shaft 28, thereby realizing the relative movement between the first partition frame 12 and the second partition frame 13. This relative movement creates dynamic conditions for the processing of powder in the device, which is beneficial to subsequent pickling, stirring, screening and other operations. When pickling is required, silicon carbide powder enters the device through the feeding slide plate 14 on the top of the first support 11. The outer surface of the feeding slide plate 14 fits tightly with the slot 19 on the top of the first partition frame 12, so that the powder can slide smoothly into the first partition frame 12. To ensure uniform and continuous feeding and prevent powder accumulation or blockage, the second motor 32, installed on top of the support plate 31, is then started. Its output drives the stirring roller 33 to rotate at high speed. The stirring roller 33 powerfully stirs the powder within the first partition 12, ensuring thorough mixing of the powder with the acid solution pre-injected into the first partition 12. The relative movement of the first partition 12 and the second partition 13 driven by the first motor 2, in coordination with the stirring action of the stirring roller 33 driven by the second motor 32, further enhances the contact effect between the powder and the acid solution. The relative movement of the first partition 12 and the second partition 13 continuously changes the position and state of the powder, causing it to tumble and flow within the partitions. The stirring roller 33 breaks up the powder clumps, allowing the acid to penetrate deeper into the powder, accelerating the pickling reaction, improving pickling efficiency and quality, and ensuring that the powder is fully pickled. After pickling, the powder enters the second partition 13 through the funnel 26 at the bottom of the first partition 12. The bottom of the funnel 26 precisely matches the top of the partition plate 15, guiding the powder smoothly into the second partition 13. The screen 17 on the inner surface of the second partition 13 performs a sieving operation on the powder. Its pore size is uniform and precise, which can screen out powder that meets specific particle size requirements. As the machine continues to run, it provides kinetic energy to the screen, allowing the acid to be quickly filtered to the external collection equipment.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A silicon carbide powder pickle apparatus, characterized by: The utility model provides a kind of supporting leg (1) including multiple, the outer surface of each supporting leg (1) is fixedly connected with first support (11), the outer surface of supporting leg (1) is fixedly installed with second support (18), the top of second support (18) is fixedly installed with first motor (2), the output of first motor (2) is fixedly connected with transmission rod (21), one end of transmission rod (21) is fixedly connected with rotating disc (22), the outer surface of rotating disc (22) is fixedly connected with rotating rod (23), the outer surface of rotating rod (23) is rotatably connected with push-pull rod (24), the outer surface of push-pull rod (24) is rotatably connected with two limit supports (25) by shaft, the outer surface of limit support (25) is fixedly installed with second partition frame (13), the bottom of first support (11) is fixedly installed with multiple fixed rods (29), the outer surface of each fixed rod (29) is fixedly connected with rotating shaft (28), the outer surface of each rotating shaft (28) is rotatably connected with transmission arm (27), the outer surface of each transmission arm (27) is rotatably connected with first partition frame (12) and second partition frame (13) by shaft.

2. A silicon carbide powder pickling apparatus as claimed in claim 1, wherein: The opposite side of first support (11) is fixedly installed with two fixed plates (3), the opposite side of each fixed plate (3) is fixedly connected with erection plate (31), the top of erection plate (31) is fixedly installed with second motor (32), the output of second motor (32) is fixedly connected with stirring stick (33).

3. A silicon carbide powder pickling apparatus as claimed in claim 2, wherein: The top of first partition frame (12) is provided with notch (19), the top of first support (11) is fixedly installed with blanking slide plate (14).

4. The apparatus of claim 1, wherein: The top of second partition frame (13) is slidably attached with convex strip (16) by groove, the top of convex strip (16) is fixedly connected with partition plate (15).

5. A silicon carbide powder pickling apparatus as claimed in claim 3, wherein: The inner surface of second partition frame (13) is fixedly connected with screen (17), the bottom of first partition frame (12) is fixedly connected with hopper (26).

6. A silicon carbide powder pickling apparatus as claimed in claim 5, wherein: The bottom of hopper (26) cooperates with the top of partition plate (15).

7. A silicon carbide powder pickling apparatus as defined in claim 3, wherein: The outer surface of blanking slide plate (14) cooperates with notch (19).

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