A green silicon carbide micro-powder impurity removal device

Abstract

The utility model relates to the technical field of impurity removal equipment, concretely to a kind of green silicon carbide micro powder impurity removal equipment, including the plug-in block of being inserted with installation slot;Support frame is fixed in the inner wall of plug-in block, the top of support frame is fixed with the magnetic plate of inclined shape, the end of guide plate extends to magnetic plate, and adjacent two magnetic plates are staggered distribution;The outer wall of plug-in block is fixed with mounting plate;Magnetic plate in adsorption component is inclined and adjacent staggered distribution, changes micro powder falling trajectory, since the contact of micro powder and magnetic plate is more sufficient and persistent, magnetic plate can more effectively exert its adsorption effect.Metallic particles and other impurities have more opportunities to be magnetically adsorbed when passing through magnetic plate, thereby significantly improving the adsorption efficiency of impurities.Compared with existing device, the present equipment can more thoroughly remove metallic impurities in green silicon carbide micro powder, effectively improve the impurity removal effect, and greatly improve the purity of micro powder.

Description

Technical Field

[0001] This utility model relates to the field of impurity removal equipment technology, specifically to a green silicon carbide micro powder impurity removal equipment. Background Technology

[0002] Green silicon carbide micropowder, as a key industrial material, plays an indispensable role in many cutting-edge fields such as photovoltaics, semiconductors, and precision machining due to its high hardness, high temperature resistance, chemical stability, and good thermal conductivity. During its production and processing, various impurities are inevitably introduced due to factors such as raw material purity, smelting processes, and subsequent grinding treatments. Therefore, the impurity removal process is crucial for ensuring its performance and expanding its application range.

[0003] Utility model patent application number CN202220671039.6 discloses a silicon carbide micro powder impurity removal system. This system includes a shell and an inlet. An installation groove is formed inside the inlet, and a filtering mechanism is installed within the installation groove. A cavity is formed inside the shell, and a rotating mechanism is installed within the cavity. Each of the opposite sidewalls of the shell has a communicating cavity, and each of the two communicating cavities has an adsorption mechanism. Multiple first communicating slots and second communicating slots are formed inside the shell. Each of the multiple first communicating slots has a sliding mechanism, and each of the multiple second communicating slots has a pressing mechanism. This utility model has a reasonable structural design. By setting up the filtering and adsorption mechanisms, it can remove larger impurities and reduce the falling speed of the silicon carbide micro powder. At the same time, the adsorption device allows workers to easily disassemble and reassemble the adsorption plate while removing adsorbable substances from the micro powder, and recover usable impurities through the operation of the pressing and sliding mechanisms.

[0004] Although the silicon carbide micropowder impurity removal system facilitates impurity removal from silicon carbide micropowder through the inclusion of filtration and adsorption mechanisms, the following problems exist in practical use: In the impurity adsorption stage, the vertically installed adsorption plate is used to remove impurities from the silicon carbide micropowder. However, due to gravity, the micropowder falls in free fall, resulting in only brief and localized line or point contact with the vertical adsorption plate. Because of the lack of sufficient and continuous surface contact, impurities cannot effectively adhere to the surface of the adsorption plate, leading to low adsorption efficiency and difficulty in achieving the expected impurity removal effect. Therefore, we propose a green silicon carbide micropowder impurity removal device. Utility Model Content

[0005] The purpose of this invention is to provide a green silicon carbide micro powder impurity removal device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A green silicon carbide micro powder impurity removal device includes a filter box with an open top; a cover plate is fixed to the bottom of the filter box, and a screening component for vibrating screening of green silicon carbide micro powder to remove impurities is provided below the feed inlet at the top of the cover plate.

[0008] The adsorption box is open at the top; an inclined guide plate is fixed on the upper part of the inner wall of the adsorption box; the two outer walls on both sides of the adsorption box are provided with mounting grooves, and the two mounting grooves are staggered in the vertical direction.

[0009] An adsorption assembly is installed in an installation groove and used to adsorb metal particles in green silicon carbide micro powder; it includes an insert block that is inserted into the installation groove; a support frame is fixed to the inner wall of the insert block, an inclined magnetic plate is fixed to the top of the support frame, the end of a guide plate extends to the magnetic plate, and two adjacent magnetic plates are staggered; an installation plate is fixed to the outer wall of the insert block.

[0010] The limiting components are installed on both sides above the mounting groove on the outer wall of the adsorption box and are used to limit the adsorption components in the mounting groove.

[0011] As a preferred technical solution of this utility model, a feed hopper is fixedly connected to the feed inlet at the top of the cover plate by bolts, and the overall shape of the feed hopper is funnel-shaped;

[0012] In this setting, the feed hopper improves the convenience and smoothness of feeding.

[0013] As a preferred technical solution of this utility model, the screening component includes guide rods located at the four corners of the cover plate and passing through the cover plate and slidably connected to the cover plate. First springs are sleeved on the upper and lower sides of the cover plate on the outside of the guide rods. A fixing plate is fixed between the top ends of two adjacent guide rods, and a vibration motor is installed on the top of the fixing plate. A screening frame is fixed between the bottom ends of the four guide rods, and a screen is fixed in the opening of the screening frame.

[0014] As a preferred technical solution of this utility model, the upper and lower ends of the guide rod are fixedly connected to the fixing plate and the screening frame by bolts, and the cross-sectional shape of the screening frame is U-shaped.

[0015] In both of these settings, the design facilitates the screening and removal of impurities from green silicon carbide micropowder through the vibration of the screen.

[0016] As a preferred technical solution of this utility model, the upper part of the front and rear walls of the adsorption box is fixedly connected to the support plate by bolts, and the bottom of the support plate is fixedly connected to two support rods by bolts, and the bottom end of the support rods is fixedly connected to the pad by bolts.

[0017] This design provides stable support for the equipment and increases its stability.

[0018] As a preferred technical solution of this utility model, the support frame is triangular in shape, and the support frame is fixedly connected to the magnetic plate and the insert block by bolts;

[0019] In this setup, the design ensures the secure and stable installation of the support frame, magnetic plate, and insert.

[0020] As a preferred technical solution of this utility model, the limiting component includes a housing fixedly connected to the outer wall of the adsorption box, the inner wall of the housing is open, a shaft is fixed in the inner cavity of the housing, and a second spring is sleeved on the outside of the shaft; a slider is slidably installed on the outside of the shaft, and the bottom end of the second spring abuts against the slider; a limiting plate is fixed at the end of the slider, the upper and lower ends of the limiting plate pass through the housing, and one end of the limiting plate protrudes to one side of the mounting plate and abuts against the outer wall of the mounting plate;

[0021] As a preferred technical solution of this utility model, the bottom of the limiting plate is provided with an inclined surface, and the top of the limiting plate is fixed with a bent part;

[0022] As a preferred technical solution of this utility model, the size of the slider is adapted to the inner cavity size of the housing, and the slider and the limiting plate are fixedly connected by bolts.

[0023] Of these three settings, the limiting component ensures both the installation stability of the adsorption component and the ease of disassembly.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] 1. The adsorption assembly features inclined and staggered magnetic plates, altering the trajectory of the micro-powder. This results in more thorough and sustained contact between the micro-powder and the magnetic plates, allowing for more effective adsorption. Metal particles and other impurities have a greater chance of being magnetically adsorbed as they pass through the magnetic plates, significantly improving adsorption efficiency. Compared to existing devices, this equipment more thoroughly removes metal impurities from green silicon carbide micro-powder, increasing adsorption efficiency and effectively enhancing the impurity removal effect, thus significantly improving the purity of the micro-powder.

[0026] 2. Through the set screening component: The screening component drives the screening frame and screen to vibrate through the vibration motor. Combined with the guide rod and the first spring, when the green silicon carbide micro powder falls on the screen, the vibration can more efficiently screen the green silicon carbide micro powder and remove impurities.

[0027] 3. The adsorption assembly utilizes a limiting component: the adsorption component connects to the mounting slot of the adsorption box via an insert block. This connection method is simple, direct, and easy to operate. During installation, initial positioning is achieved simply by accurately inserting the insert block into the mounting slot. Simultaneously, the limiting component further ensures the stability of the adsorption assembly. The limiting plate, under the action of the second spring, presses against the mounting plate, firmly securing the adsorption assembly in the mounting slot and preventing loosening or displacement during equipment operation. When maintenance or replacement of the adsorption assembly is required, simply pull upwards on the bent part of the limiting plate, overcoming the spring force of the second spring, to detach the limiting plate from the mounting plate, allowing the adsorption assembly to be easily removed from the mounting slot. This design significantly shortens equipment maintenance time, reduces maintenance costs, and improves equipment efficiency and reliability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0030] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0031] Figure 4 This is a schematic diagram of the screening component in this utility model;

[0032] Figure 5 This is a side view of the adsorption component in this utility model;

[0033] Figure 6 This utility model Figure 5 Enlarged structural diagram of section A in the middle;

[0034] In the picture:

[0035] 1. Filter box; 10. Cover plate; 11. Feed hopper; 12. Guide rod; 13. First spring; 14. Screening frame; 15. Screen; 16. Fixing plate; 17. Vibrating motor;

[0036] 2. Adsorption box; 20. Mounting slot; 21. Guide plate; 22. Support plate; 23. Support rod; 24. Pad block;

[0037] 3. Adsorption assembly; 30. Mounting plate; 31. Insert block; 32. Support frame; 33. Magnetic plate;

[0038] 4. Limiting component; 40. Housing; 41. Shaft; 42. Second spring; 43. Slider; 44. Limiting plate; 440. Inclined surface; 441. Bending part. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] This embodiment provides a technical solution:

[0041] Please see Figures 1-4 As shown, a green silicon carbide micro powder impurity removal device includes a filter box 1 with an open top. A cover plate 10 is fixed to the bottom of the filter box 1. A screening component for vibrating and screening green silicon carbide micro powder to remove impurities is provided below the feed inlet at the top of the cover plate 10. The screening component includes guide rods 12 located at the four corners of the cover plate 10, passing through the cover plate 10 and slidably connected to it. First springs 13 are sleeved on the upper and lower sides of the cover plate 10 on the outside of the guide rods 12. A fixing plate 16 is fixed between the top ends of two adjacent guide rods 12. A vibration motor 17 is installed on the top of each fixing plate 16. A screening frame 14 is fixed between the bottom ends of the four guide rods 12. A screen 15 is fixed in the opening of the screening frame 14. The guide rods 12 are slidably connected to the cover plate 10 and sleeved with the first springs 13. In conjunction with the vibration motors 17 on the fixing plate 16, the screening frame 14 and the screen 15 are driven to generate high-frequency stable vibration.

[0042] With the above-mentioned setup, the top opening of the filter box 1 facilitates the input of micro powder, the bottom cover plate 10 provides stable support, and the screening components set below it create a space for vibrating screening of green silicon carbide micro powder, so that the micro powder can undergo preliminary impurity removal in an orderly manner within the equipment.

[0043] In this embodiment, a feed hopper 11 is bolted to the top inlet of the cover plate 10. The feed hopper 11 is funnel-shaped. This design allows for the centralized and uniform delivery of green silicon carbide micro powder into the equipment, ensuring the continuity of the impurity removal process.

[0044] In this embodiment, the upper and lower ends of the guide rod 12 are fixedly connected to the fixing plate 16 and the screening frame 14 by bolts. The cross-sectional shape of the screening frame 14 is U-shaped. The U-shaped screening frame 14 can effectively carry micro powder, realize efficient vibration screening, improve the separation accuracy of impurities, and reduce screen clogging.

[0045] Please see Figures 1-3 As shown, the adsorption box 2 has an open top; an inclined guide plate 21 is fixed on the upper part of the inner wall of the adsorption box 2; both outer walls of the adsorption box 2 are provided with mounting grooves 20, and the two mounting grooves 20 are staggered in the vertical direction.

[0046] With the above-mentioned setup, the top opening of the adsorption box 2 facilitates the entry of micro powder, the inclined guide plate 21 on the inner wall can guide the flow of micro powder to the adsorption component, and the staggered installation grooves 20 on both outer walls provide precise positioning and stable support for the installation of the adsorption component, ensuring the realization of the adsorption and impurity removal function.

[0047] In this embodiment, support plates 22 are bolted to the upper parts of both the front and rear walls of the adsorption box 2. Two support rods 23 are bolted to the bottom of the support plates 22, and pads 24 are bolted to the bottom of the support rods 23. This design enhances the stability of the adsorption box 2, prevents shaking during operation from affecting the impurity removal effect, and can adapt to different installation environments, thus improving the applicability of the equipment.

[0048] Please see Figures 1-5 As shown, the adsorption component 3 is installed in the mounting groove 20 and is used to adsorb metal particles in green silicon carbide micro powder; it includes an insert block 31 that is inserted into the mounting groove 20; a support frame 32 is fixed to the inner wall of the insert block 31, and an inclined magnetic plate 33 is fixed to the top of the support frame 32; the end of the guide plate 21 extends to the magnetic plate 33, and two adjacent magnetic plates 33 are staggered; an mounting plate 30 is fixed to the outer wall of the insert block 31.

[0049] With the above setup, the adsorption component 3 is inserted into the mounting slot 20 via the insert block 31, making installation and disassembly convenient; the triangular support frame 32 stably supports the inclined magnetic plate 33, and the inclined and staggered magnetic plates 33 can effectively change the trajectory of the falling powder, greatly increase the contact area and duration between the powder and the magnetic plate, and significantly improve the adsorption efficiency of impurities such as metal particles.

[0050] In this embodiment, the support frame 32 is triangular in shape and is fixedly connected to the magnetic plate 33 and the insert block 31 by bolts. The triangular shape of the support frame 32 can effectively disperse the micro-powder pressure and magnetic force borne by the magnetic plate 33, ensuring the long-term stable operation of the adsorption component 3.

[0051] Please see Figure 6 As shown, the limiting component 4 is installed on both sides above the mounting groove 20 on the outer wall of the adsorption box 2, and is used to limit the adsorption component 3 in the mounting groove 20. The limiting component 4 includes a housing 40 fixedly connected to the outer wall of the adsorption box 2. The inner wall of the housing 40 is open. A shaft 41 is fixed in the inner cavity of the housing 40. A second spring 42 is sleeved on the outside of the shaft 41. A slider 43 is slidably installed on the outside of the shaft 41, and the bottom end of the second spring 42 abuts against the slider 43. A limiting plate 44 is fixed at the end of the slider 43. The upper and lower ends of the limiting plate 44 pass through the housing 40, and one end of the limiting plate 44 protrudes to one side of the mounting plate 30 and abuts against the outer wall of the mounting plate 30.

[0052] With the above-mentioned configuration, the housing 40, shaft 41, second spring 42, slider 43 and limiting plate 44 work together to securely limit the adsorption assembly 3 during installation and prevent it from loosening during operation. During maintenance, it can be easily disassembled by lifting the bending part 441, effectively shortening maintenance time and reducing maintenance costs.

[0053] In this embodiment, the bottom of the limiting plate 44 is provided with an inclined surface 440, and the top of the limiting plate 44 is fixed with a bent portion 441. The inclined surface 440 at the bottom of the limiting plate 44 facilitates the automatic sliding into the limiting position when the adsorption assembly 3 is installed, and the bent portion 441 at the top facilitates manual disassembly.

[0054] In this embodiment, the size of the slider 43 is adapted to the inner cavity size of the housing 40, and the slider 43 is fixedly connected to the limiting plate 44 by bolts. The slider 43 is adapted to the housing 40 and bolted to the limiting plate 44, and in conjunction with the second spring 42, it can achieve stable and flexible limiting and fixing of the adsorption component 3.

[0055] It should be noted that key components such as the filter box 1, adsorption box 2, and screening frame 14 in this embodiment can be made of stainless steel. Stainless steel has excellent corrosion resistance, effectively resisting the chemical erosion that may occur during the impurity removal process of green silicon carbide micropowder, extending the service life of the equipment, and reducing maintenance costs. Meanwhile, for the magnetic plate 33, using a permanent magnet material with high magnetic permeability and high coercivity, such as neodymium iron boron permanent magnets, can further enhance the adsorption capacity for metal particulate impurities, ensuring the stability and reliability of the impurity removal effect.

[0056] It is worth noting that the vibration motor 17 involved in this embodiment is a conventional technology and will not be described in detail here.

[0057] During the removal of impurities from green silicon carbide micro powder, the user first turns on the power to the vibration motor 17. The vibration motor 17 starts working. Driven by the vibration motor 17, the fixed plate 16 drives the guide rod 12 to reciprocate within the cover plate 10. The first spring 13 assists in achieving high-frequency stable vibration, causing the screen 15 in the screening frame 14 to vibrate. At the same time, the green silicon carbide micro powder enters the filter box 1 through the funnel-shaped feed hopper 11 and falls on the top of the screen 15. The micro powder jumps and rolls continuously on the screen 15. Impurities with larger particle sizes are intercepted above the screen 15, while micro powder that meets the particle size requirements falls below the screen 15, completing the initial screening and impurity removal. Subsequently, the micro powder, after preliminary screening, enters the box through the top opening of the adsorption box 2. Guided by the inclined guide plate 21, the micro powder slides down the guide plate 21 to the top of the magnetic plate 33. During the descent, the micro powder comes into full contact with the magnetic plate 33. The magnetic plate 33 uses magnetic force to adsorb magnetic impurities such as metal particles in the micro powder onto the plate surface. The non-magnetic green silicon carbide micro powder continues to slide down, achieving deep removal of magnetic impurities.

[0058] When disassembling the adsorption assembly 3, the operator first lifts the bent part 441 at the top of the limiting plate 44 to overcome the elastic force of the second spring 42. Then, the slider 43, which is fixedly connected to the limiting plate 44, slides upward along the shaft 41 in the inner cavity of the housing 40, so that the limiting plate 44 gradually separates from one side of the mounting plate 30. Then, when the limiting plate 44 is completely released from its restraining restriction on the mounting plate 30, the operator grabs the mounting plate 30 of the adsorption assembly 3 and pulls it, and the mounting plate 30 pulls the insert 31 out of the mounting groove 20 on the outer wall of the adsorption box 2. During the extraction process, the triangular support frame 32, together with the inclined magnetic plate 33, detaches from the equipment along with the insert 31, thereby completing the disassembly of the adsorption assembly 3, so as to clean the metal particle impurities adsorbed on the surface of the magnetic plate 33 or to inspect or replace the adsorption assembly 3.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A purification device for green silicon carbide micro powder, characterized in that, include: The filter box (1) is open at the top; a cover plate (10) is fixed at the bottom of the filter box (1), and a screening component for vibrating screening of green silicon carbide micro powder to remove impurities is provided below the feed inlet at the top of the cover plate (10). The adsorption box (2) is open at the top; an inclined guide plate (21) is fixed at the top of the inner wall of the adsorption box (2); both outer walls of the adsorption box (2) are provided with mounting grooves (20), and the two mounting grooves (20) are staggered in the vertical direction. An adsorption component (3) is installed in the mounting groove (20) and is used to adsorb metal particles in green silicon carbide micro powder; it includes a plug (31) that is inserted into the mounting groove (20); a support frame (32) is fixed on the inner wall of the plug (31), and an inclined magnetic plate (33) is fixed on the top of the support frame (32); the end of the guide plate (21) extends to the magnetic plate (33), and two adjacent magnetic plates (33) are staggered; an mounting plate (30) is fixed on the outer wall of the plug (31); The limiting component (4) is installed on both sides above the mounting groove (20) on the outer wall of the adsorption box (2) and is used to limit the adsorption component (3) at the mounting groove (20).

2. The green silicon carbide micro powder impurity removal equipment according to claim 1, characterized in that: The top of the cover plate (10) is fixedly connected to the feed inlet by bolts to the feed hopper (11), and the feed hopper (11) is funnel-shaped.

3. The green silicon carbide micro powder impurity removal equipment according to claim 1, characterized in that: The screening assembly includes guide rods (12) located at the four corners of the cover plate (10), passing through the cover plate (10) and slidably connected to the cover plate (10). The guide rods (12) are fitted with first springs (13) on the upper and lower sides of the cover plate (10). A fixing plate (16) is fixed between the top ends of two adjacent guide rods (12), and a vibration motor (17) is installed on the top of the fixing plate (16). A screening frame (14) is fixed between the bottom ends of the four guide rods (12), and a screen (15) is fixed in the opening of the screening frame (14).

4. The green silicon carbide micro powder impurity removal equipment according to claim 3, characterized in that: The upper and lower ends of the guide rod (12) are fixedly connected to the fixing plate (16) and the screening frame (14) by bolts. The cross-sectional shape of the screening frame (14) is square.

5. The green silicon carbide micro powder impurity removal equipment according to claim 1, characterized in that: The adsorption box (2) has a support plate (22) fixedly connected to the upper part of the front and rear walls by bolts. The bottom of the support plate (22) is fixedly connected to two support rods (23) by bolts. The bottom of the support rods (23) is fixedly connected to a pad (24) by bolts.

6. The green silicon carbide micro powder impurity removal equipment according to claim 1, characterized in that: The support frame (32) is triangular in shape and is fixedly connected to the magnetic plate (33) and the insert (31) by bolts.

7. The green silicon carbide micro powder impurity removal equipment according to claim 1, characterized in that: The limiting component (4) includes a housing (40) fixedly connected to the outer wall of the adsorption box (2). The inner wall of the housing (40) is open. A shaft (41) is fixed in the inner cavity of the housing (40). A second spring (42) is sleeved on the outside of the shaft (41). A slider (43) is slidably installed on the outside of the shaft (41), and the bottom end of the second spring (42) abuts against the slider (43). A limiting plate (44) is fixed at the end of the slider (43). The upper and lower ends of the limiting plate (44) pass through the housing (40), and one end of the limiting plate (44) protrudes to one side of the mounting plate (30) and abuts against the outer wall of the mounting plate (30).

8. The green silicon carbide micro powder impurity removal equipment according to claim 7, characterized in that: The bottom of the limiting plate (44) is provided with an inclined surface (440), and the top of the limiting plate (44) is fixed with a bent part (441).

9. The green silicon carbide micro powder impurity removal equipment according to claim 7, characterized in that: The size of the slider (43) is adapted to the inner cavity size of the housing (40), and the slider (43) and the limiting plate (44) are fixedly connected by bolts.

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