Device for separating carbon and magnetic impurities from silicon carbide

Abstract

The utility model relates to the technical field of silicon carbide, specifically disclose silicon carbide carbon removal reduces magnetic impurity separation device, including the organism, its upper end left side fixed mounting has the feed inlet; Motor, its setting in the left end rear side of feed inlet, and the output of motor is connected with the link wheel, the right side mounting of link wheel has the movable structure, and movable structure includes the broken roll and broken knife, the connecting pipe, its installation in the right end downside of organism, and the downside mounting of connecting pipe has the calcining box, the left side mounting of organism has the liquid inlet pipe, and the inside upside of organism is provided with the slope structure, the slope structure includes the inclined plate and electromagnetic magnetic separator. This silicon carbide carbon removal reduces magnetic impurity separation device, is provided with movable structure, can rotate to broken knife to the broken effect to silicon carbide, and is provided with slope structure, can move to silicon carbide to the removal effect to the magnetic metal in silicon carbide.

Description

Technical Field

[0001] This utility model relates to the field of silicon carbide technology, specifically to a silicon carbide carbon removal and demagnetization impurity separation device. Background Technology

[0002] A carbon removal and demagnetization impurity separation device refers to a device that separates impurities from a material by removing carbon and demagnetizing it. Silicon carbide is a superhard compound formed by silicon (Si) and carbon (C) bonded together by covalent bonds. It is a representative of third-generation semiconductor materials. Due to its unique physical and chemical properties, it performs well in extreme environments such as high temperature, high pressure, high frequency, and high power. It is widely used in electronics, energy, military, aerospace and other fields. In the process of silicon carbide processing, it is necessary to use a carbon removal and demagnetization impurity separation device to separate impurities in silicon carbide.

[0003] Based on existing solutions and actual production and processing applications, current silicon carbide demagnetization and impurity separation devices still have some problems. For example, when separating impurities, the silicon carbide demagnetization and impurity separation device removes magnetic impurities by placing the silicon carbide under the electromagnetic separator. However, since some magnetic impurities are located inside the silicon carbide, the removal effect is limited. Therefore, this utility model provides a silicon carbide demagnetization and impurity separation device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a silicon carbide demagnetization and impurity separation device to solve the problem in the background art where the silicon carbide demagnetization and impurity separation device removes magnetic impurities by placing silicon carbide under an electromagnetic separator. However, since some magnetic impurities are located inside the silicon carbide, the removal effect on magnetic impurities is limited.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a silicon carbide demagnetization and impurity separation device, comprising a body, wherein a feed hopper is fixedly installed on the upper left side; Also includes: The motor is located on the rear left side of the feed hopper, and the output end of the motor is connected to a connecting wheel. The connecting wheels are connected by a belt. A movable structure is installed on the right side of the connecting wheel. The movable structure includes a crushing roller and a crushing blade. The crushing roller is installed on the right side of the connecting wheel, and crushing blades are installed on both the outer side of the crushing roller and the inner side of the feed hopper. A connecting pipe is installed on the lower right side of the machine body, and a calcination box is installed on the lower side of the connecting pipe. A liquid inlet pipe is installed on the left side of the machine body, and a ramp structure is provided on the upper inside of the machine body. The ramp structure includes an inclined plate and an electromagnetic separator. The inclined plate is installed on the upper inside of the machine body, and electromagnetic separators are provided on the lower middle part of the inclined plate and the inner upper part of the machine body.

[0006] Preferably, an electric telescopic rod is fixedly installed on the right side of the interior of the machine body, and a baffle plate is installed on the lower side of the electric telescopic rod.

[0007] Preferably, a pneumatic telescopic rod is fixedly installed on the lower middle side of the inclined plate, and a connecting plate is fixedly installed on the lower end of the pneumatic telescopic rod. An installation plate is fixedly installed on the lower end of the connecting plate, and a filter screen is provided on the lower inner side of the installation plate.

[0008] Preferably, an oxygen inlet pipe is fixedly installed on the upper middle side of the calcination box, and an air pump is fixedly installed on the upper right side of the calcination box. An installation pipe is fixedly installed on the upper side of the air pump, and a sealing ring is fixedly installed on the right middle side of the installation pipe.

[0009] Preferably, a fixing block is fixedly installed on the outer side of the right end of the mounting pipe, and a movable plate is movably connected to the outer side of the fixing block. An air inlet pipe is connected to the inner right side of the movable plate, and a collection box is fixedly installed on the right side of the air inlet pipe.

[0010] Preferably, the baffle plate is slidably connected to the body and acts as a barrier against silicon carbide.

[0011] Preferably, the movable plate and the fixed block are rotatably connected, and the movable plate and the air intake pipe are threadedly connected, and a one-way valve is provided on the inner side of the air intake pipe.

[0012] Preferably, the crushing blades are evenly distributed on the outer side of the crushing roller, and the crushing blades are staggered.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the silicon carbide demagnetization and impurity separation device is equipped with a movable structure that can rotate the crushing blade to crush the silicon carbide, and is also equipped with a ramp structure that can move the silicon carbide to remove the magnetic metal in the silicon carbide. 1. By starting the motor, the motor drives the connecting wheel to rotate, which in turn drives the front connecting wheel to rotate via the belt. This, in turn, drives the crushing roller to rotate inside the feed hopper, which in turn drives the crushing blade to rotate and crush silicon carbide, thus facilitating the crushing of silicon carbide. 2. By installing the collection box on the right side of the calcination box, the collection box drives the air inlet pipe to be installed on the right side of the installation pipe. By rotating the movable plate, the movable plate rotates outside the fixed block, thereby making the movable plate threaded on the outside of the air inlet pipe. This causes the air inlet pipe to drive the collection box to move to the left, so that the air inlet pipe fits and connects to the right side of the sealing ring, which facilitates the fixing of the collection box and thus facilitates the collection of carbon dioxide. 3. The crushed silicon carbide falls onto the upper side of the inclined plate, where it slides. This allows the electromagnetic separators, located on the inner upper part of the machine body and the lower middle part of the inclined plate, to remove magnetic metal impurities from the silicon carbide, facilitating demagnetization. The silicon carbide then enters the calcination chamber through a connecting pipe, while oxygen enters through an oxygen inlet pipe. This calcination process oxidizes the free carbon into carbon dioxide, thus removing carbon from the silicon carbide. Attached Figure Description

[0014] Figure 1 This is a schematic cross-sectional view of the connection between the machine body and the feed hopper of this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This utility model Figure 1 Enlarged structural diagram at point B; Figure 4 This is a schematic cross-sectional view of the overall structure of the connection between the body and the inclined plate of this utility model; Figure 5 This is a schematic diagram of the overall cross-sectional structure of the connection between the feed hopper and the crushing roller of this utility model; Figure 6 This is a schematic diagram of the overall structure of the connection between the connecting plate and the mounting plate of this utility model.

[0015] In the diagram: 1. Machine body; 2. Feed hopper; 3. Crushing roller; 4. Inclined plate; 5. Electromagnetic separator; 6. Liquid inlet pipe; 7. Pneumatic telescopic rod; 8. Mounting plate; 9. Filter screen; 10. Connecting pipe; 11. Calcination box; 12. Oxygen inlet pipe; 13. Air pump; 14. Mounting pipe; 15. Collection box; 16. Electric telescopic rod; 17. Baffle plate; 18. Fixed block; 19. Movable plate; 20. Air inlet pipe; 21. Sealing ring; 22. Connecting plate; 23. Motor; 24. Connecting wheel; 25. Belt; 26. Crushing blade. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0017] Please see Figure 1-6This utility model provides a technical solution: a silicon carbide demagnetization and impurity separation device, comprising: a body 1, a feed hopper 2, a crushing roller 3, an inclined plate 4, an electromagnetic separator 5, a liquid inlet pipe 6, a pneumatic telescopic rod 7, a mounting plate 8, a filter screen 9, a connecting pipe 10, a calcination box 11, an oxygen inlet pipe 12, an air pump 13, a mounting pipe 14, a collection box 15, an electric telescopic rod 16, a baffle plate 17, a fixing block 18, a movable plate 19, an air inlet pipe 20, a sealing ring 21, a connecting plate 22, a motor 23, a connecting wheel 24, a belt 25, and a crushing blade 26. In operation, the specific details are as follows... Figure 1 , Figure 4 and Figure 5 As shown, a controller is installed on the upper right side of the machine body 1. A feed hopper 2 is fixedly installed on the upper left side of the machine body 1. A motor 23 is fixedly installed on the left side of the feed hopper 2. A connecting wheel 24 is connected to the output end of the motor 23. A belt 25 is movably installed on the middle side of the connecting wheel 24. A crushing roller 3 is fixedly installed on the right side of the connecting wheel 24. Crushing blades 26 are fixedly installed on the outer side of the crushing roller 3 and the inner side of the feed hopper 2. When the silica raw material is poured into the feed hopper 2, the controller starts the motor 23, which drives the connecting wheel 24 to rotate on the left side of the feed hopper 2. This causes the connecting wheel 24 to rotate on the front left side of the feed hopper 2 via the motor 23. In turn, the connecting wheel 24 drives the crushing roller 3 to rotate inside the feed hopper 2. This causes the crushing roller 3 to rotate, which in turn drives the crushing blades 26 to rotate. Thus, the crushing blades 26 on the outer side of the crushing roller 3 and the crushing blades 26 on the inner side of the feed hopper 2 crush the silica raw material, which facilitates the crushing of the silica raw material and improves the impurity separation effect. Specific examples Figure 1 and Figure 3 As shown, a vacuum pump 13 is fixedly installed on the upper right side of the calcining chamber 11. An installation pipe 14 is fixedly installed on the upper side of the vacuum pump 13. A fixing block 18 is fixedly installed on the outer right side of the installation pipe 14. A movable plate 19 is movably installed on the outer side of the fixing block 18. A sealing ring 21 is fixedly installed on the right side of the installation pipe 14. An air inlet pipe 20 is installed on the inner right side of the movable plate 19. A collection box 15 is installed on the outer right side of the air inlet pipe 20. The collection box 15 is placed on the right side of the calcining chamber 11, causing the collection box 15 to move the air inlet pipe 20. Installed on the right side of the movable plate 19, the movable plate 19 is manually rotated so that it rotates outside the fixed block 18, thereby making the movable plate 19 threadedly connected to the left side of the air intake pipe 20. Then, under the action of the threads between the movable plate 19 and the air intake pipe 20, the air intake pipe 20 moves to the left, causing the air intake pipe 20 to drive the collection box 15 to move to the left, thereby making the air intake pipe 20 fit and connect to the right side of the sealing ring 21, which facilitates the installation and limiting of the collection box 15. Specific examples Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, an inclined plate 4 is fixedly installed on the upper side of the machine body 1. Electromagnetic separators 5 are installed on the lower side of the middle part of the inclined plate 4 and the inner side of the upper end of the machine body 1. An inlet pipe 6 is installed on the left side of the machine body 1. A pneumatic telescopic rod 7 is fixedly installed at the lower end of the inclined plate 4. A connecting plate 22 is fixedly installed on the lower side of the pneumatic telescopic rod 7. An mounting plate 8 is fixedly installed on the lower side of the connecting plate 22. A filter screen 9 is fixedly installed on the inner side of the lower end of the mounting plate 8. A mixture of 0.5-1.0% sulfuric acid and hydrogen peroxide is added to the lower side of the machine body 1 through the inlet pipe 6. The crushed silica raw material The material falls from the feed hopper 2 onto the upper side of the inclined plate 4, causing the silicon oxide material to slide to the right on the upper side of the inclined plate 4. This allows the electromagnetic separator 5 installed on the inner side of the upper end of the machine body 1 to remove magnetic metal impurities from the silicon oxide material. The silicon oxide material then falls onto the lower inclined plate 4, causing it to slide to the left. This allows the electromagnetic separator 5 on the lower side of the middle of the inclined plate 4 to remove magnetic metal impurities from the silicon oxide material again. The demagnetized silicon oxide material then falls into the interior of the mounting plate 8. The controller activates the pneumatic telescopic rod 7, causing it to slide the connecting plate 22 downwards. This, in turn, causes the mounting plate 8 to slide downwards, moving the silica raw material into the mixture. The mixture then passes through the filter screen 9 and enters the mounting plate 8, dissolving the silicon oxide in the silica raw material and simultaneously removing graphite residue. The controller then activates the pneumatic telescopic rod 7 again, causing it to slide the mounting plate 8 upwards. This allows the mixture to flow out of the mounting plate 8 through the filter screen 9, and the mounting plate 8 slides back to its original position. The controller then activates the electric telescopic rod 16, causing it to slide the baffle plate 17 upwards. This allows the silica raw material to slide to the right while the filter screen 9 is tilted, thus... The silica raw material slides into the interior of the connecting pipe 10, allowing it to slide into the furnace chamber inside the calcination box 11. Oxygen is then supplied to the interior of the calcination box 11 via the oxygen inlet pipe 12, heating the interior temperature of the calcination box 11 to 600-800℃ to calcine the silica raw material. This oxidizes free carbon into carbon dioxide, enabling the removal of carbon and demagnetization impurities from silicon carbide. The controller then activates the vacuum pump 13, which draws carbon dioxide from the calcination box 11 into the installation pipe 14. The carbon dioxide then enters the air inlet pipe 20 through the installation pipe 14, and a one-way valve inside the air inlet pipe 20 directs the carbon dioxide into the collection box 15 for convenient collection and use in chemical engineering. The calcination method of the calcination box 11 is existing technology.

[0018] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A silicon carbide demagnetization and impurity separation device, comprising a body (1), wherein a feed hopper (2) is fixedly installed on the upper left side. Its features are, Also includes: The motor (23) is located on the rear left side of the feed hopper (2), and the output end of the motor (23) is connected to the connecting wheel (24). The connecting wheels (24) are connected to each other by a belt (25). A movable structure is installed on the right side of the connecting wheel (24), and the movable structure includes a crushing roller (3) and a crushing knife (26). The crushing roller (3) is installed on the right side of the connecting wheel (24), and the crushing knife (26) is installed on both the outer side of the crushing roller (3) and the inner side of the feed hopper (2). A connecting pipe (10) is installed on the lower right side of the machine body (1), and a calcination box (11) is installed on the lower side of the connecting pipe (10). An inlet pipe (6) is installed on the left side of the machine body (1), and a ramp structure is provided on the upper inside of the machine body (1). The ramp structure includes an inclined plate (4) and an electromagnetic separator (5). The inclined plate (4) is installed on the upper inside of the machine body (1), and an electromagnetic separator (5) is provided on the lower middle part of the inclined plate (4) and the inner upper part of the machine body (1).

2. The silicon carbide carbon removal and demagnetization impurity separation device according to claim 1, characterized in that: An electric telescopic rod (16) is fixedly installed on the right side inside the body (1), and a baffle plate (17) is installed on the lower side of the electric telescopic rod (16).

3. The silicon carbide demagnetization and impurity separation device according to claim 1, characterized in that: A pneumatic telescopic rod (7) is fixedly installed on the lower middle side of the inclined plate (4), and a connecting plate (22) is fixedly installed on the lower end of the pneumatic telescopic rod (7). An installation plate (8) is fixedly installed on the lower end of the connecting plate (22), and a filter screen (9) is provided on the lower inside of the installation plate (8).

4. The silicon carbide carbon removal and demagnetization impurity separation device according to claim 1, characterized in that: An oxygen inlet pipe (12) is fixedly installed on the upper middle side of the calcining box (11), and an air pump (13) is fixedly installed on the upper right side of the calcining box (11). An installation pipe (14) is fixedly installed on the upper side of the air pump (13), and a sealing ring (21) is fixedly installed on the right middle side of the installation pipe (14).

5. The silicon carbide carbon removal and demagnetization impurity separation device according to claim 4, characterized in that: A fixing block (18) is fixedly installed on the outer side of the right end of the mounting pipe (14), and a movable plate (19) is movably connected to the outer side of the fixing block (18). An air inlet pipe (20) is connected to the inner right side of the movable plate (19), and a collection box (15) is fixedly installed on the right side of the air inlet pipe (20).

6. The silicon carbide carbon removal and demagnetization impurity separation device according to claim 2, characterized in that: The baffle plate (17) is slidably connected to the body (1) and acts as a barrier against silicon carbide.

7. The silicon carbide carbon removal and demagnetization impurity separation device according to claim 5, characterized in that: The movable plate (19) and the fixed block (18) are rotatably connected, and the movable plate (19) and the air intake pipe (20) are threadedly connected, and a one-way valve is provided on the inner side of the air intake pipe (20).

8. The silicon carbide carbon removal and demagnetization impurity separation device according to claim 1, characterized in that: The crushing blades (26) are evenly distributed on the outside of the crushing roller (3), and the crushing blades (26) are staggered.

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