Dust falling device of silicon carbide sand screening machine
By designing a dust reduction device including screen, dustproof frame, magnetic block, mobile rack and motor in a silicon carbide sand screening machine, the problem of finer silicon carbide being raised during feeding is solved, and carbonization is achieved Efficient screening and utilization of silicon.
Patent Information
- Application Number
- CN202420344695.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-02-26
AI Technical Summary
In silicon carbide sand screening machines, silicon carbide with finer particle size is easily raised when feeding, causing waste.
A dust reduction device including a sand screening machine body, a screen mesh, a dustproof frame, a magnetic block, a mobile rack, a steel needle, a motor, a scraper, a pipe, a collection box, a fan and a filter layer are designed. The device secures the dustproof frame through magnetic blocks, uses a mobile rack and steel needle to damage the packaging bag, motor and scraper to collect residual powder, fan and filter the powder.
It effectively avoids the silicon carbide powder being raised during feeding, reduces waste, and achieves efficient screening and utilization of silicon carbide by collecting and filtering residual powder.
Smart Images
Figure CN222447268U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust suppression devices, in particular to a dust suppression device for a silicon carbide sand screening machine. Background Art
[0002] Silicon carbide is a wide bandgap semiconductor material with excellent properties such as high temperature resistance, high hardness, and chemical corrosion resistance. The particle size of silicon carbide affects its application areas and performance. Silicon carbide is usually screened using a sand screen. If the silicon carbide particle size is fine and dusty, it is easy to be lifted up during the feeding process of silicon carbide and float at the feed port. At this time, a dust reduction device is needed to reduce the dust.
[0003] When silicon carbide is screened using a small sand screening machine, the bagged silicon carbide is usually poured directly into the sand screening machine. The sand screening machine is a multi-layer screen setting, and silicon carbide of different particle sizes is screened by vibration. Since the small sand screening machine is not equipped with a dust suppression device, silicon carbide with finer particle sizes is lifted above the screen, causing a certain degree of waste. Therefore, a dust suppression device for a silicon carbide sand screening machine is proposed to address the above problems. Utility Model Content
[0004] The utility model aims to provide a dust reduction device for a silicon carbide sand screening machine, so as to solve the problem of a certain degree of waste caused by silicon carbide being lifted up during feeding.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A dust reduction device for a silicon carbide sand screening machine comprises a sand screening machine body, a screen and a dust prevention frame, wherein several layers of screens are arranged on the top of the sand screening machine body, one of which is fixedly connected to a first support plate on both sides of the screen, a magnetic block is arranged in the dust prevention frame, a feeding port is arranged on the top of the dust prevention frame, a through hole is opened on one side of the feeding port, a moving frame is slidably connected in the through hole opened on one side of the feeding port, one end of the moving frame is fixedly connected with a pulling block and a baffle, a steel needle is fixedly connected on one side of the moving frame, a motor is arranged on the top of the dust prevention frame, a rotating shaft is arranged at the bottom of the motor, a scraper is fixedly connected on one side of the rotating shaft, a pipe is connected on one side of the dust prevention frame, one end of the pipe is connected to a moving box, a second support plate is tightly fitted on the bottom of the moving box, moving blocks are fixedly connected around the moving box, a collecting box is slidably connected to the outer side of the moving block, a fan is arranged in the collecting box, and a filter layer is fitted on one end of the fan.
[0007] Preferably, the screen is made of metal, the magnetic block is arranged in a ring shape, and a dustproof frame is tightly fitted on the top of the first support plate.
[0008] Preferably, the movable frame is arranged in a cross shape, the baffle is arranged in an inclined manner, and the pulling blocks are arranged in groups of four on the outside of the feed port.
[0009] Preferably, the scraper is arranged in an L shape, and one side of the scraper is tightly fitted with the inner wall of the dustproof frame.
[0010] Preferably, the filter layer is embedded in the bottom of the moving box, and a handle is fixedly connected to the top of the moving box.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] In the utility model, by arranging the sand screening machine body, the screen, the dustproof frame, the magnetic block, the first support plate, the feed port, the through hole, the movable frame, the steel needle and the pulling block, when the sand screening machine body is in use, firstly a corner of the bagged silicon carbide is inserted into the feed port, and then the pulling block is held and pulled up, driving the movable frame and the steel needle to move up at the same time, after the steel needle pierces the packaging bag of the silicon carbide, the pulling block is released, the movable frame descends to the original position under the action of gravity, the packaging bag is damaged, and the silicon carbide reaches the screen through the feed port, thereby preventing the dusty silicon carbide from being raised when feeding;
[0013] Through the motor, shaft, scraper, pipeline, collection box, fan, mobile box and filter layer, when the main body of the sand screening machine is finished screening, the motor is started to drive the scraper to scrape the inner wall of the dustproof frame to scrape the residual silicon carbide powder into the dustproof frame. At this time, the fan is started, and the residual silicon carbide powder is sucked into the mobile box through the pipeline. Through the filter layer embedded in the bottom of the mobile box, the fan will not enter the silicon carbide powder when in use;
[0014] Through the provided moving block and handle, after turning off the fan and the motor, the user disassembles the pipeline, moves the moving box upward by holding the handle, and then takes out the silicon carbide inside the moving box, and can continue screening, effectively reducing the waste of silicon carbide powder. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;
[0017] Figure 3 This is a schematic diagram of the top view of the collection box of the utility model;
[0018] Figure 4 This is a schematic diagram of the feed port structure of the utility model;
[0019] Figure 5 It is a schematic diagram of the top view structure of the feed port of the utility model.
[0020] In the figure: 1. Sand screening machine body; 2. Screen; 3. Dustproof frame; 4. Magnetic block; 5. First support plate; 6. Feed inlet; 7. Through hole; 8. Moving frame; 9. Steel needle; 10. Pull block; 11. Motor; 12. Rotating shaft; 13. Scraper; 14. Pipeline; 15. Collecting box; 16. Fan; 17. Moving box; 18. Filter layer; 19. Second support plate; 20. Moving block; 21. Handle; 22. Baffle. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.
[0024] See also Figure 1-5 , the utility model provides a technical solution:
[0025] A dust reduction device for a silicon carbide sand screening machine comprises a sand screening machine body 1, a screen 2 and a dustproof frame 3. The top of the sand screening machine body 1 is provided with a plurality of screens 2, wherein both sides of one of the screens 2 are fixedly connected to a first support plate 5, a magnetic block 4 is arranged in the dustproof frame 3, a feed port 6 is arranged at the top of the dustproof frame 3, a through hole 7 is opened at one side of the feed port 6, a moving frame 8 is slidably connected in the through hole 7 opened at one side of the feed port 6, a pull block 10 and a baffle 22 are fixedly connected at one end of the moving frame 8, a steel needle 9 is fixedly connected at one side of the moving frame 8, a motor 11 is arranged at the top of the dustproof frame 3, a rotating shaft 12 is arranged at the bottom of the motor 11, and the rotating shaft 1 2 is fixedly connected with a scraper 13 on one side, a pipe 14 is connected with one side of the dustproof frame 3, a moving box 17 is connected at one end of the pipe 14, a second support plate 19 is tightly fitted at the bottom of the moving box 17, a moving block 20 is fixedly connected around the moving box 17, a collecting box 15 is slidably connected to the outer side of the moving block 20, a fan 16 is arranged in the collecting box 15, a filter layer 18 is fitted at one end of the fan 16, the dustproof device arranged on the sand screening machine can effectively reduce dust during the feeding process, and the extraction device arranged on the dustproof device can make the residual silicon carbide collected and screened, thereby avoiding the waste of raised silicon carbide powder.
[0026] The screen 2 is made of metal, the magnetic block 4 is annular, and the dustproof frame 3 is tightly fitted on the top of the first support plate 5, which is convenient for fixing the dustproof frame 3; the movable frame 8 is cross-shaped, the baffle 22 is inclined, and the pull blocks 10 are arranged in a group of four on the outside of the feed port 6, which is convenient for the steel needle 9 to puncture the packaging bag, and the silicon carbide powder will not leak out from the through hole 7; the scraper 13 is L-shaped, and one side of the scraper 13 is tightly fitted with the inner wall of the dustproof frame 3, which is convenient for collecting the residual silicon carbide on the inner wall of the dustproof frame 3; the filter layer 18 is embedded in the bottom of the movable box 17, and the top of the movable box 17 is fixedly connected with a handle 21, so that the silicon carbide powder is not easy to enter the fan 16, which is convenient for taking the movable box 17.
[0027] Working process: During the operation of the equipment, the external power supply is energized. When the silicon carbide sand screening machine is in use, first place the main body 1 of the sand screening machine in a suitable position, and place the dustproof frame 3 above the screen 2. Since the screen 2 is made of metal, the dustproof frame 3 is fixed by the magnetic force of the magnetic block 4 and the first support plate 5. The user inserts a corner of the bagged silicon carbide into the feed port 6, and then holds the pull block 10 to pull it up. The baffle 22 moves in the through hole 7 opened in the feed port 6, driving the movable frame 8 and the steel needle 9 to move up at the same time. After the steel needle 9 pierces the packaging bag of silicon carbide, the pull block 10 is released, and the movable frame 8 drops to its original position under the action of gravity. The packaging bag is damaged, and the silicon carbide reaches the screen 2 through the feed port 6. The baffle 22 and the pull block 10 prevent the silicon carbide powder from leaking out of the through hole 7, thereby avoiding the dust-like silicon carbide from being raised during feeding. At this time, start the main body 1 of the sand screening machine to screen the silicon carbide. When the screening is completed, the silicon carbide When there is residual silicon powder in the dustproof frame 3, the user starts the motor 11 to drive the scraper 13 to make a circular motion in the dustproof frame 3, so that the residual silicon carbide in the dustproof frame 3 is lifted up, and the fan 16 is started at this time, and the lifted silicon carbide is sucked into the movable box 17 through the pipe 14. The filter layer 18 embedded at the bottom of the movable box 17 prevents the fan 16 from sucking the silicon carbide into it during use. After the residual silicon carbide is completely sucked into the movable box 17, the fan 16 and the motor 11 are stopped, the pipe 14 is disassembled, and then the handle 21 is held to drive the movable box 17 and the movable block 20 to be taken out of the collecting box 15, and then the silicon carbide in the movable box 17 is taken out, and screening can continue. The dustproof device provided for the sand screening machine can effectively reduce dust during the feeding process, and the extraction device provided for the dustproof device can be used to collect the residual silicon carbide and then screen it, thereby avoiding the waste of lifted silicon carbide powder.
[0028] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A dust suppression device for a silicon carbide sand screening machine, comprising a sand screening machine body (1), a screen (2) and a dust prevention frame (3), characterized in that: The sand screening machine body (1) is provided with a plurality of layers of screens (2) on the top, wherein the first support plates (5) are fixedly connected to both sides of one of the screens (2), a magnetic block (4) is provided in the dustproof frame (3), a feed port (6) is provided on the top of the dustproof frame (3), a through hole (7) is provided on one side of the feed port (6), a moving frame (8) is slidably connected in the through hole (7) provided on one side of the feed port (6), a pull block (10) and a baffle (22) are fixedly connected to one end of the moving frame (8), a steel needle (9) is fixedly connected to one side of the moving frame (8), and a motor is provided on the top of the dustproof frame (3). (11), a rotating shaft (12) is provided at the bottom of the motor (11), a scraper (13) is fixedly connected to one side of the rotating shaft (12), a pipe (14) is connected to one side of the dustproof frame (3), one end of the pipe (14) is connected to a moving box (17), a second support plate (19) is tightly fitted to the bottom of the moving box (17), a moving block (20) is fixedly connected to the four sides of the moving box (17), a collecting box (15) is slidably connected to the outer side of the moving block (20), a fan (16) is provided in the collecting box (15), and a filter layer (18) is fitted to one end of the fan (16).
2. The dust suppression device for a silicon carbide sand screening machine according to claim 1 is characterized in that: The screen (2) is made of metal, the magnetic block (4) is arranged in a ring shape, and a dustproof frame (3) is tightly fitted on the top of the first support plate (5).
3. The dust suppression device for a silicon carbide sand screening machine according to claim 1, characterized in that: The movable frame (8) is arranged in a cross shape, the baffle (22) is arranged in an inclined manner, and the pulling blocks (10) are arranged in groups of four on the outside of the feed port (6).
4. The dust suppression device for a silicon carbide sand screening machine according to claim 1, characterized in that: The scraper (13) is arranged in an L shape, and one side of the scraper (13) is tightly fitted to the inner wall of the dustproof frame (3).
5. The dust suppression device for a silicon carbide sand screening machine according to claim 1, characterized in that: The filter layer (18) is embedded in the bottom of the moving box (17), and a handle (21) is fixedly connected to the top of the moving box (17).