Silicon carbide powder synthesis device and method

Abstract

The present invention discloses a silicon carbide powder synthesis device and method, including a box body, a mixing chamber is provided inside the box body, a partition is fixedly installed inside the mixing chamber, an inner cylinder rotatably connected to the inner cylinder is provided through the partition, a first bevel gear located above the partition is fixedly installed on the outer wall of the inner cylinder, and a material guide chamber is provided on both sides of the mixing chamber. The present invention can not only realize the multiple and small amount addition of carbon powder and silicon powder, but also enable the multiple and quantitative introduction of a binder, which is convenient for proportioning and feeding various materials, and at the same time, the material guide plate can be vibrated during the introduction of the binder, thereby effectively avoiding the adhesion and agglomeration of carbon powder and silicon powder, improving the use effect, enabling the first mixing rod to rotate around the axis of the inner cylinder while also rotating, and the second mixing rod to rotate around the axis of the inner cylinder while shaking left and right, thereby improving the mutual cooperation between the two and making the material mixing more uniform.

Description

Technical Field

[0001] The invention relates to the technical field of silicon carbide powder synthesis, and in particular to a silicon carbide powder synthesis device and method. Background Art

[0002] As a typical representative of the third generation of semiconductor materials, silicon carbide (SiC) has excellent properties such as high hardness (second only to diamond), high thermal conductivity, low thermal expansion coefficient, large bandgap, high saturated electron drift velocity, strong critical breakdown field, high chemical stability, and strong radiation resistance. These excellent properties enable SiC semiconductor devices to work in extreme environments of high temperature, high pressure, and strong radiation, and have broad application prospects in the fields of power electronics and microwave communications.

[0003] In the synthesis process of silicon carbide powder, it is necessary to first mix carbon powder, silicon powder and binder in a certain proportion, then introduce the mixed materials into a crucible for heating, and after cooling, take out the silicon carbide powder for grinding. When the existing synthesis device is used, the carbon powder, silicon powder and binder are mostly added at one time, which is difficult to mix evenly afterwards. At the same time, it is difficult to achieve a ratio between the carbon powder, silicon powder and binder, which is inconvenient to use. At the same time, the stirring method in the existing device is relatively single, and the mixing effect of the carbon powder, silicon powder and binder is general. Therefore, we propose a silicon carbide powder synthesis device and method Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a silicon carbide powder synthesis device and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A silicon carbide powder synthesis device and method, including a box body, a mixing chamber is provided inside the box body, a partition is fixedly installed inside the mixing chamber, an inner cylinder rotatably connected to the inner cylinder is penetrated through the partition, a first bevel gear located above the partition is fixedly installed on the outer wall of the inner cylinder, material guide chambers are provided on both sides of the mixing chamber, and the two material guide chambers are provided with connecting holes connected to the mixing chamber and located below the partition, material guide assemblies are provided on both sides of the inner cylinder, a guide agent assembly is provided below the two material guide assemblies, and a feeding assembly is provided below the two material guide assemblies, a first mixing assembly is provided in the mixing chamber, and a second mixing assembly connected to the first mixing assembly is provided on the inner cylinder.

[0007] Preferably, the material guide assembly includes a first rotating shaft rotatably connected between the inner walls on both sides of the material guide cavity, a material guide block is fixedly installed on the outer wall of the first rotating shaft, a plurality of material guide grooves are opened on the material guide block, two baffles are fixedly installed between the inner walls on both sides of the material guide cavity, the material guide block is located between the two baffles, a material storage box is fixedly installed on the top of the box body and is located directly above the material guide block, one end of the first rotating shaft passes through the inner wall on one side of the material guide cavity and is fixedly installed with a second bevel gear located in the mixing cavity, the second bevel gear is meshed with the first bevel gear, and the other end of the first rotating shaft passes through the inner wall on the other side of the material guide cavity and is fixedly installed with a cam located outside the material guide cavity.

[0008] Preferably, the drug guiding assembly comprises a rectangular box arranged below the cam and fixedly connected to the side wall of the box body, a connecting rod slidably connected to the top of the rectangular box is penetrated by the connecting rod, a block abutting against the cam is fixedly installed on the end of the connecting rod located outside the rectangular box, a strong magnetic slider slidably connected to the inner wall of the rectangular box is fixedly installed on the end of the connecting rod located inside the rectangular box, a tension spring is fixedly connected between the strong magnetic slider and the inner top of the rectangular box, a drug outlet pipe and a drug inlet pipe are arranged on the rectangular box, and a drug storage box is arranged on the box body, the ends of the drug outlet pipe and the drug inlet pipe connected to the rectangular box are both located below the strong magnetic slider, and one-way valves are arranged in the drug outlet pipe and the drug inlet pipe, the end of the drug inlet pipe away from the rectangular box is connected to the drug storage box, and the end of the drug outlet pipe away from the rectangular box is connected to the mixing chamber.

[0009] Preferably, the feeding assembly includes a second rotating shaft rotatably connected between the inner walls at both ends of the material guide cavity, a material guide plate is fixedly installed on the outer wall of the second rotating shaft, one end of the material guide plate passes through a connecting hole, a counterweight magnetic block is fixedly installed on the bottom of the material guide plate, and the strong magnetic slider has the same magnetic properties as the counterweight magnetic block.

[0010] Preferably, the first mixing assembly includes a motor fixedly mounted on the top of the partition, a driving wheel is fixedly mounted on the output shaft of the motor, a driven wheel meshingly connected to the driving wheel is fixedly mounted on the outer wall of the inner cylinder, a third rotating shaft is penetrated through the inner wall of the inner cylinder and is rotatably connected to the third rotating shaft and is located below the communicating hole, a third bevel gear located in the inner cylinder is fixedly mounted on the outer wall of the third rotating shaft, a fixed shaft is fixedly mounted on the inner top of the mixing chamber, one end of the fixed shaft penetrates through the top of the inner cylinder and is rotatably connected to the top of the inner cylinder, a fourth bevel gear is fixedly mounted on one end of the fixed shaft located in the inner cylinder, the third bevel gear is meshingly connected to the fourth bevel gear, and a plurality of first mixing rods located outside the inner cylinder are fixedly mounted on the outer wall of the third rotating shaft.

[0011] Preferably, the second mixing component includes a rotating member penetrating and rotatably connected to the inner cylinder. One end of the third rotating shaft located inside the inner cylinder is fixedly installed with an end block. A linkage frame is fixedly installed on the outer side wall of the rotating member and located on the side of the end block away from the third bevel gear. A linkage groove is formed in the linkage frame. A linkage column is rotatably connected to the side wall of the end block close to the linkage frame. The linkage column penetrates the linkage groove and is slidably connected to the inner wall of the linkage groove. A plurality of second mixing rods located outside the inner cylinder are fixedly installed on the outer side wall of the rotating member.

[0012] Preferably, the rotating member is in a "mouth" shape. A cleaning rod is fixedly installed on the outer side wall of the inner cylinder and located below the partition plate. The cleaning rod is in an "L" shape. The rotating member is located below the third rotating shaft.

[0013] A method for synthesizing silicon carbide powder includes the following steps:

[0014] In the first step, start the motor. Through two feeding components and two material conveying components, carbon powder and silicon powder are respectively introduced into the mixing cavity from two communication holes. By setting a guiding agent component, the binder is intermittently and quantitatively introduced into the mixing cavity.

[0015] In the second step, by setting the first mixing component, the third rotating shaft can revolve and rotate simultaneously, improving the stirring effect of the materials. By setting the second mixing component, the rotating member can rotate and reciprocate swing simultaneously, further making the materials stirred evenly.

[0016] In the third step, turn off the motor, introduce the mixed materials into the crucible for heating. After cooling, take out the silicon carbide powder for grinding.

[0017] The beneficial effects of the present invention:

[0018] By setting the feeding component, after the motor is started, the carbon powder and silicon powder can automatically fall onto the feeding plate in multiple and relatively small amounts, and finally enter the mixing cavity. By adding in relatively small amounts and multiple times, it is convenient to mix the carbon powder and silicon powder evenly subsequently. At the same time, by presetting the size of the feeding groove, the carbon powder and silicon powder can be added according to different volume sizes, facilitating the ratio.

[0019] By setting the guiding agent component, after the motor is started, the binder can be automatically added into the mixing cavity in multiple and quantitative amounts, thereby improving the forming performance of the material. At the same time, the quantitative addition can avoid waste of resources and is convenient to use.

[0020] By setting the material conveying component, during the process of adding the binder into the mixing cavity, the feeding plate can reciprocate vibrate, thereby effectively avoiding the adhesion of carbon powder or silicon powder on the feeding plate, improving the use effect and avoiding the agglomeration of carbon powder or silicon powder.

[0021] By setting up the first mixing assembly and the second mixing assembly, after the motor is started, the first mixing rod can rotate around the axis of the inner cylinder and rotate on its own, thereby enhancing the mixing effect. The second mixing rod can also rotate around the axis of the inner cylinder and shake left and right, which can further mix the materials evenly.

[0022] The present invention can not only realize the multiple and small amount addition of carbon powder and silicon powder, but also the multiple and quantitative introduction of binder, which is convenient for proportioning and feeding of various materials. At the same time, the guide plate can be vibrated during the introduction of the binder, thereby effectively avoiding the adhesion and agglomeration of carbon powder and silicon powder, improving the use effect, and can make the first mixing rod rotate around the axis of the inner cylinder while rotating on its own, and the second mixing rod rotates around the axis of the inner cylinder while shaking left and right, thereby improving the mutual coordination between the two and making the material mixing more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of one side of a silicon carbide powder synthesis device proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the other side of a silicon carbide powder synthesis device proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of the planar structure of a silicon carbide powder synthesis device proposed by the present invention;

[0026] Figure 4 It is a partial structural schematic diagram of the material guiding component of the present invention;

[0027] Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 6 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0029] Figure 7 It is a schematic diagram of the planar structure of the linkage column, linkage frame and linkage groove of the present invention.

[0030] In the figure: 1 box, 2 storage box, 3 cam, 4 connecting rod, 5 rectangular box, 6 discharge pipe, 7 feed pipe, 8 storage box, 9 block, 10 mixing chamber, 11 first bevel gear, 12 second bevel gear, 13 first rotating shaft, 14 guide block, 15 guide chamber, 16 driving wheel, 17 driven wheel, 18 motor, 19 partition, 20 inner cylinder, 21 connecting hole, 22 baffle, 23 guide groove, 24 tension spring, 25 strong magnetic slider, 26 second rotating shaft, 27 counterweight magnetic block, 28 guide plate, 29 fixed shaft, 30 cleaning rod, 31 second mixing rod, 32 rotating member, 33 third bevel gear, 34 third rotating shaft, 35 first mixing rod, 36 end block, 37 linkage column, 38 linkage frame, 39 fourth bevel gear, 40 linkage groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-Figure 7 A silicon carbide powder synthesis device and method, including a box body 1, a mixing chamber 10 is arranged inside the box body 1, a partition 19 is fixedly installed inside the mixing chamber 10, an inner cylinder 20 rotatably connected to the inner cylinder 20 is penetrated and arranged on the partition 19, a first bevel gear 11 located above the partition 19 is fixedly installed on the outer wall of the inner cylinder 20, and a material guide chamber 15 is arranged on both sides of the mixing chamber 10, and a connecting hole 21 connected to the mixing chamber 10 and located below the partition 19 is opened on the two material guide chambers 15, and a material guide assembly is arranged on both sides of the inner cylinder 20, and the material guide assembly includes a first rotating shaft 13 rotatably connected between the inner walls on both sides of the material guide chamber 15, and a first bevel gear 11 is fixedly installed on the outer wall of the inner cylinder 20. A material guide block 14 is fixedly installed on the outer wall of a rotating shaft 13, and a plurality of material guide grooves 23 are opened on the material guide block 14. Two baffles 22 are fixedly installed between the inner walls on both sides of the material guide cavity 15, and the material guide block 14 is located between the two baffles 22. A material storage box 2 located directly above the material guide block 14 is fixedly installed on the top of the box body 1. One end of the first rotating shaft 13 passes through the inner wall on one side of the material guide cavity 15 and is fixedly installed with a second bevel gear 12 located in the mixing cavity 10. The second bevel gear 12 is meshed and connected with the first bevel gear 11. The other end of the first rotating shaft 13 passes through the inner wall on the other side of the material guide cavity 15 and is fixedly installed with a cam 3 located outside the material guide cavity 15.

[0033] A drug guiding assembly is provided below the two material guiding assemblies, and the drug guiding assembly includes a rectangular box 5 arranged below the cam 3 and fixedly connected to the side wall of the box body 1, a connecting rod 4 slidably connected to the top of the rectangular box 5 is provided through the top of the rectangular box 5, and a stop block 9 abutting against the cam 3 is fixedly installed at one end of the connecting rod 4 located outside the rectangular box 5, and a strong magnetic slider 25 slidably connected to the inner wall of the rectangular box 5 is fixedly installed at one end of the connecting rod 4 located inside the rectangular box 5, and a tension spring 24 is fixedly connected between the strong magnetic slider 25 and the inner top of the rectangular box 5, and an agent outlet pipe 6 and an agent inlet pipe 7 are provided on the rectangular box 5, and an agent storage box 8 is provided on the box body 1, and the ends of the agent outlet pipe 6 and the agent inlet pipe 7 connected to the rectangular box 5 are both located below the strong magnetic slider 25, and a one-way valve is provided in the agent outlet pipe 6 and the agent inlet pipe 7, and the end of the agent inlet pipe 7 away from the rectangular box 5 is connected to the agent storage box 8, and the end of the agent outlet pipe 6 away from the rectangular box 5 is connected to the mixing chamber 10;

[0034] A feeding assembly is provided below the two material guide assemblies. The feeding assembly includes a second rotating shaft 26 rotatably connected between the inner walls at both ends of the material guide cavity 15. A material guide plate 28 is fixedly installed on the outer wall of the second rotating shaft 26. One end of the material guide plate 28 passes through the connecting hole 21. A counterweight magnetic block 27 is fixedly installed at the bottom of the material guide plate 28. The strong magnetic slider 25 has the same magnetic properties as the counterweight magnetic block 27.

[0035] A first mixing assembly is provided in the mixing chamber 10, and the first mixing assembly includes a motor 18 fixedly mounted on the top of the partition 19, a driving wheel 16 is fixedly mounted on the output shaft of the motor 18, a driven wheel 17 meshingly connected with the driving wheel 16 is fixedly mounted on the outer wall of the inner cylinder 20, a third rotating shaft 34 rotatably connected with the inner cylinder 20 and located below the communicating hole 21 is penetrated through the inner wall of the inner cylinder 20, a third bevel gear 33 located in the inner cylinder 20 is fixedly mounted on the outer wall of the third rotating shaft 34, a fixed shaft 29 is fixedly mounted on the inner top of the mixing chamber 10, one end of the fixed shaft 29 penetrates the top of the inner cylinder 20 and is rotatably connected with the top of the inner cylinder 20, a fourth bevel gear 39 is fixedly mounted on one end of the fixed shaft 29 located at the inner cylinder 20, the third bevel gear 33 is meshingly connected with the fourth bevel gear 39, and a plurality of first mixing rods 35 located outside the inner cylinder 20 are fixedly mounted on the outer wall of the third rotating shaft 34;

[0036] A second mixing assembly connected to the first mixing assembly is provided on the inner cylinder 20, and the second mixing assembly includes a rotating member 32 that is arranged on the inner cylinder 20 and is rotatably connected thereto. An end block 36 is fixedly installed at one end of the third rotating shaft 34 located in the inner cylinder 20, and a linkage frame 38 located on the side of the end block 36 away from the third bevel gear 33 is fixedly installed on the outer wall of the rotating member 32. A linkage groove 40 is provided on the linkage frame 38, and a linkage column 37 is rotatably connected on a side wall of the end block 36 close to the linkage frame 38. The linkage column 37 penetrates the linkage groove 40 and is slidably connected to the inner wall of the linkage groove 40. A plurality of second mixing rods 31 located outside the inner cylinder 20 are fixedly installed on the outer wall of the rotating member 32, and the rotating member 32 is in the shape of a "mouth". A cleaning rod 30 located below the partition 19 is fixedly installed on the outer wall of the inner cylinder 20, and the cleaning rod 30 is in the shape of an "L", and the rotating member 32 is located below the third rotating shaft 34.

[0037] A method for synthesizing silicon carbide powder comprises the following steps:

[0038] In the first step, the motor 18 is started, and the carbon powder and the silicon powder are introduced into the mixing chamber 10 from the two connecting holes 21 respectively through the two material guide components and the two material feeding components. By setting the agent guide component, the binder is introduced into the mixing chamber 10 intermittently and quantitatively;

[0039] In the second step, by setting the first mixing assembly, the third rotating shaft 34 can be made to rotate while revolving, thereby improving the mixing effect of the materials. By using the second mixing assembly, the rotating member 32 can be made to reciprocate while rotating, thereby further mixing the materials evenly.

[0040] The third step is to turn off the motor 18, introduce the mixed material into the crucible for heating, and after cooling, take out the silicon carbide powder for grinding.

[0041] When the present invention is used, one storage box 2 is filled with enough carbon powder, and the other storage box 2 is filled with enough silicon powder. The motor 18 is started, and the output shaft of the motor 18 drives the driving wheel 16 to rotate. By setting the driven wheel 17, the inner cylinder 20, the first bevel gear 11, the third rotating shaft 34 and the rotating member 32 can be rotated around the axis of the inner cylinder 20. When the first bevel gear 11 rotates, the second bevel gear 12 is set to enable the first rotating shaft 13 to rotate. The rotation of the first rotating shaft 13 drives the guide block 14 to rotate, and the guide block When the guide trough 23 is set, the carbon powder or silicon powder can fall into the guide trough 23 and finally be introduced to the guide plate 28 between the two baffles 22. Since the guide plate 28 is inclined, the carbon powder or silicon powder slides along the surface of the guide plate 28 and enters the mixing chamber 10 through the connecting hole 21, so that the carbon powder and silicon powder can be added multiple times and in small amounts, which is convenient for uniform mixing. At the same time, by setting the size of the guide trough 23, the carbon powder and silicon powder can be added according to different volume sizes, which is convenient for proportioning.

[0042] The rotation of the first rotating shaft 13 also drives the cam 3 to rotate. By setting the stop block 9, the connecting rod 4, the tension spring 24 and the strong magnetic slider 25, the tension spring 24 can be reciprocated and retracted, so that the strong magnetic slider 25 can reciprocate up and down. When the strong magnetic slider 25 moves downward, the strong magnetic slider 25 can squeeze the binder in the rectangular box 5 into the mixing chamber 10 through the agent outlet pipe 6 to accelerate the combination. When the strong magnetic slider 25 moves downward, the strong magnetic slider 25 gradually approaches the counterweight magnetic block 27, and the strong magnetic slider 25 and the counterweight magnetic block 27 have the same magnetic properties, that is, the magnetic repulsion between the two gradually increases. When the strong magnetic slider 25 drops to a lower position, the magnetic repulsion of the strong magnetic slider 25 on the counterweight magnetic block 27 causes the guide plate 28 and the counterweight magnetic block 27 (attached Figure 5 The strong magnetic slider 25 rotates counterclockwise when the strong magnetic slider 25 moves upward, so that the binder in the agent storage box 8 is sucked into the rectangular box 5 through the agent feeding pipe 7, and at the same time, the magnetic repulsion between the strong magnetic slider 25 and the counterweight magnetic block 27 gradually decreases, so that the guide plate 28 and the counterweight magnetic block 27 deflect downward and vibrate, so that the guide plate 28 can vibrate back and forth, preventing carbon powder or silicon powder from adhering to the guide plate 28;

[0043] When the third rotating shaft 34 rotates around the axis of the inner cylinder 20, the third bevel gear 33 on the third rotating shaft 34 rotates around the axis of the inner cylinder 20 accordingly, and the fourth bevel gear 39 on the fixed shaft 29 is in a fixed state and the third bevel gear 33 is meshed and connected with the fourth bevel gear 39, so that the third bevel gear 33 can rotate around the axis of the third rotating shaft 34, that is, the third rotating shaft 34 rotates around the axis of the inner cylinder 20 and also rotates by itself. By providing the first mixing rod 35, the carbon powder, silicon powder and binder introduced into the mixing chamber 10 can be mixed and stirred, and the stirring is more uniform. The third rotating shaft 34 also drives the end block 36 to rotate while rotating by itself. By providing the linkage column 37, the linkage frame 38 and the linkage groove 40, the rotating member 32 can be rotated left and right by a certain angle to achieve swing, that is, the rotating member 32 rotates around the inner cylinder 20 and also swings left and right. By providing the second mixing rod 31, the materials can be further mixed evenly. By providing the cleaning rod 30, the materials adhering to the inner wall of the circular mixing chamber 10 can be cleaned.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A silicon carbide powder synthesis device, comprising a housing (1), characterized in that: A mixing chamber (10) is provided inside the housing (1), a partition (19) is fixedly installed inside the mixing chamber (10), an inner cylinder (20) rotatably connected to the inner cylinder (19) is penetrated through the inner cylinder (20), a first bevel gear (11) located above the partition (19) is fixedly installed on the outer wall of the inner cylinder (20), material guide chambers (15) are provided on both sides of the mixing chamber (10), and the two material guide chambers (15) are provided with connecting holes (21) connected to the mixing chamber (10) and located below the partition (19), material guide components are provided on both sides of the inner cylinder (20), the material guide components include a first rotating shaft (13) rotatably connected between the inner walls of the two sides of the material guide chamber (15), the other end of the first rotating shaft (13) penetrates the inner wall of the other side of the material guide chamber (15) and is fixedly installed with a cam (3) located outside the material guide chamber (15), and a material guide component is provided below the two material guide components. The material guide assembly comprises a rectangular box (5) arranged below the cam (3) and fixedly connected to the side wall of the box body (1); a connecting rod (4) slidably connected to the rectangular box (5) is provided through the top of the rectangular box (5); a stopper (9) abutting against the cam (3) is fixedly installed on one end of the connecting rod (4) located outside the rectangular box (5); a strong magnetic slider (25) slidably connected to the inner wall of the rectangular box (5) is fixedly installed on one end of the connecting rod (4) located inside the rectangular box (5); a feeding assembly is provided below the two material guide assemblies; the feeding assembly comprises a second rotating shaft (26) rotatably connected between the inner walls of the two ends of the material guide cavity (15); a material guide plate (28) is fixedly installed on the outer wall of the second rotating shaft (26); one end of the material guide plate (28) passes through the connecting hole (21); a counterweight magnetic block (27) is fixedly installed on the bottom of the material guide plate (28); the strong magnetic slider (25) and the counterweight magnetic block (27) have the same magnetic properties.

2. A silicon carbide powder synthesis device according to claim 1, characterized in that: A material guide block (14) is fixedly mounted on the outer wall of the first rotating shaft (13), and a plurality of material guide grooves (23) are formed on the material guide block (14). Two baffles (22) are fixedly mounted between the inner walls on both sides of the material guide cavity (15), and the material guide block (14) is located between the two baffles (22). A material storage box (2) located directly above the material guide block (14) is fixedly mounted on the top of the box body (1), and one end of the first rotating shaft (13) passes through the inner wall of one side of the material guide cavity (15) and is fixedly mounted with a second bevel gear (12) located in the mixing cavity (10), and the second bevel gear (12) is meshingly connected with the first bevel gear (11).

3. A silicon carbide powder synthesis device according to claim 2, characterized in that: A tension spring (24) is fixedly connected between the strong magnetic slider (25) and the inner top of the rectangular box (5); a drug outlet pipe (6) and a drug inlet pipe (7) are provided on the rectangular box (5); a drug storage box (8) is provided on the box body (1); the ends of the drug outlet pipe (6) and the drug inlet pipe (7) connected to the rectangular box (5) are both located below the strong magnetic slider (25); one-way valves are provided in the drug outlet pipe (6) and the drug inlet pipe (7); the ends of the drug inlet pipe (7) away from the rectangular box (5) are connected to the drug storage box (8); and the ends of the drug outlet pipe (6) away from the rectangular box (5) are connected to the mixing chamber (10).

4. A silicon carbide powder synthesis device according to claim 3, characterized in that: A first mixing component is arranged in the mixing chamber (10), and a second mixing component connected to the first mixing component is arranged on the inner cylinder (20).

5. The silicon carbide powder synthesis device according to claim 4, characterized in that: The first mixing assembly comprises a motor (18) fixedly mounted on the top of the partition (19); a driving wheel (16) is fixedly mounted on the output shaft of the motor (18); a driven wheel (17) meshingly connected to the driving wheel (16) is fixedly mounted on the outer wall of the inner cylinder (20); a third rotating shaft (34) rotatably connected to the inner cylinder (20) and located below the connecting hole (21) is provided through the inner wall of the inner cylinder (20); a third cone (34) located in the inner cylinder (20) is fixedly mounted on the outer wall of the third rotating shaft (34); gear (33), a fixed shaft (29) is fixedly mounted on the inner top of the mixing chamber (10), one end of the fixed shaft (29) passes through the top of the inner cylinder (20) and is rotatably connected to the top of the inner cylinder (20), a fourth bevel gear (39) is fixedly mounted on one end of the fixed shaft (29) located on the inner cylinder (20), the third bevel gear (33) and the fourth bevel gear (39) are meshingly connected, and a plurality of first mixing rods (35) located outside the inner cylinder (20) are fixedly mounted on the outer wall of the third rotating shaft (34).

6. The silicon carbide powder synthesis device according to claim 5, characterized in that: The second mixing assembly comprises a rotating member (32) which is arranged through the inner cylinder (20) and is rotatably connected thereto; an end block (36) is fixedly mounted on one end of the third rotating shaft (34) located in the inner cylinder (20); a linkage frame (38) is fixedly mounted on the outer wall of the rotating member (32) and is located on a side of the end block (36) away from the third bevel gear (33); a linkage groove (40) is formed on the linkage frame (38); a linkage column (37) is rotatably connected on a side wall of the end block (36) close to the linkage frame (38); the linkage column (37) passes through the linkage groove (40) and is slidably connected to the inner wall of the linkage groove (40); and a plurality of second mixing rods (31) located outside the inner cylinder (20) are fixedly mounted on the outer wall of the rotating member (32).

7. The silicon carbide powder synthesis device according to claim 6, characterized in that: The rotating member (32) is in the shape of a "mouth", a cleaning rod (30) located below the partition (19) is fixedly mounted on the outer wall of the inner cylinder (20), the cleaning rod (30) is in the shape of an "L", and the rotating member (32) is located below the third rotating shaft (34).

8. A method for synthesizing silicon carbide powder, characterized in that: Using the silicon carbide powder synthesis device according to any one of claims 1 to 7, The following steps are involved: The first step is to start the motor (18), and introduce the carbon powder and the silicon powder into the mixing chamber (10) from the two connecting holes (21) through the two material guide components and the two material feeding components, and to intermittently and quantitatively introduce the binder into the mixing chamber (10) by setting the agent guide component; In the second step, by providing a first mixing assembly, the third rotating shaft (34) can be caused to simultaneously revolve and rotate, thereby improving the mixing effect of the materials; and by providing a second mixing assembly, the rotating member (32) can be caused to simultaneously rotate and swing back and forth, thereby further mixing the materials evenly; The third step is to turn off the motor (18), introduce the mixed material into the crucible for heating, and after cooling, take out the silicon carbide powder for grinding.

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