Cobalt-based alloy powder production device for hard alloy and preparation method of cobalt-based alloy powder

Abstract

The invention discloses a cobalt-based alloy powder production device for hard alloy and a preparation method of the cobalt-based alloy powder production device, and relates to the technical field of alloy powder production, the cobalt-based alloy powder production device comprises a smelting furnace and a gas atomization reaction furnace connected with the smelting furnace, and further comprises grinding and screening equipment connected with the gas atomization reaction furnace, a rotating groove is formed in the side wall of the box body, a door plate located on the outer side of the rotating groove is fixed to the side wall of the box body, a rotating frame is arranged in the rotating groove, a plurality of device grooves are formed in the inner wall of the rotating frame in a penetrating mode and arranged at equal intervals in the circumferential direction of the rotating frame, and a screening mechanism is arranged on the inner wall of each device groove. The cobalt-based alloy particle circular grinding device can automatically complete circular grinding machining of cobalt-based alloy particles, full grinding can be achieved through the closed-loop circular design, the grinding efficiency is greatly improved, meanwhile, the screening efficiency of the cobalt-based alloy particles can be effectively improved, and meanwhile the problem that a screen plate is prone to being blocked is greatly solved.

Description

Technical Field

[0001] The present invention relates to the technical field of alloy powder production, in particular to a cobalt-based alloy powder production device for cemented carbide and a preparation method thereof. Background Art

[0002] Cemented carbide is an alloy material produced through powder metallurgy from a hard compound of a refractory metal and a binder metal. Its outstanding characteristics are high hardness, high strength, good wear resistance, and a certain degree of toughness. It is widely used as a material for cutting tools, molds, wear-resistant materials, and mining tools. Cobalt-based alloy powder for cemented carbide is a key raw material for its production, and its quality has a significant impact on the quality of cemented carbide.

[0003] In the production of cobalt-based alloy powder for cemented carbide, traditional processes usually use multi-stage equipment (usually including a smelting furnace, a gas atomization reactor, grinding equipment, etc.), which is combined to complete the smelting of metal raw materials (metal raw materials usually include cobalt, iron, tungsten, chromium, etc.), atomization granulation, and grinding and powdering. However, at present, fixed screens are mostly used to screen the cobalt-based alloy particles after grinding and powdering. The sieve holes are easily clogged due to particle jamming, affecting the screening performance, and the screening efficiency is also relatively low. In addition, the particles that do not meet the standards cannot automatically return to the grinding area and need to rely on external conveying devices to achieve recycling processing, which complicates the process flow, not only increases energy consumption, but also easily introduces impurities during the transportation process, affecting the purity of the cobalt-based alloy powder.

[0004] Therefore, it is now necessary to design a cobalt-based alloy powder production device for cemented carbide and a preparation method thereof. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a cobalt-based alloy powder production device for cemented carbide and a preparation method thereof.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for producing cobalt-based alloy powder for cemented carbide comprises a smelting furnace, a gas atomization reactor connected to the smelting furnace, and a grinding and screening device connected to the gas atomization reactor. The grinding and screening device comprises a box body, a rotating groove is provided on the side wall of the box body, a door panel located outside the rotating groove is fixed on the side wall of the box body, a rotating frame is provided inside the rotating groove, a plurality of device grooves are penetrated through the inner wall of the rotating frame, the plurality of device grooves are arranged at equal intervals along the circumference of the rotating frame, and the inner wall of each device groove is provided with a screening mechanism, a plurality of partitions are fixed on the inner wall of the rotating frame, the plurality of partitions are arranged at equal intervals along the circumference of the rotating frame, and each partition is located between adjacent device grooves, a rotating pipe fixedly connected to the rotating frame is penetrated at the center of the side wall of the rotating frame, the rotating pipe penetrates the inner wall of the rotating groove and extends to the outside of the box body, a grinding mechanism is provided on the inner side of the rotating frame, and a driving mechanism is provided on the outer wall of the box body, the driving mechanism is connected to the grinding mechanism and the rotating pipe.

[0008] As a further improvement of the present invention, the grinding machine mechanism includes a grinding sleeve arranged on the inner side of the rotating frame, and an arc baffle is fixed on both side walls of the grinding sleeve, and the arc baffle is in contact with the inner wall of the rotating frame, and the side wall of the grinding sleeve is provided with a feeding opening, and the inside of the feeding opening is connected to a feeding pipe, and one end of the feeding pipe away from the grinding sleeve passes through the door panel and is connected to the aerosol reactor. The grinding sleeve is fixedly connected to the inner wall of the door panel, and a grinding block is provided inside the grinding sleeve. A mounting cavity is provided inside the grinding sleeve, and a second rotating shaft is rotatably connected to the inner bottom wall of the mounting cavity, the upper end of the second rotating shaft passes through the inner top wall of the mounting cavity and is fixedly connected to the lower end of the grinding block, and a fourth gear is fixedly sleeved on the side wall of the second rotating shaft, and a first rotating shaft is penetrated by the side wall of the grinding sleeve and rotatably connected to the grinding sleeve, one end of the first rotating shaft is located in the inner side of the mounting cavity and is fixed with a fifth gear, the fifth gear is meshed with the fourth gear, and the other end of the first rotating shaft passes through the rotating tube and extends to the outside of the box body.

[0009] As a further improvement of the present invention, the driving mechanism includes a fixing frame fixed on the outer wall of the box body, a power motor is installed on the side wall of the fixing frame, the output shaft of the power motor passes through the fixing frame and is fixedly connected to the end of the first rotating shaft, a third gear is fixedly sleeved on the side wall of the first rotating shaft, a second gear is rotatably connected to the inner top wall of the fixing frame, a first gear is fixedly sleeved on the side wall of the rotating tube, and the upper and lower sides of the second gear are respectively engaged with the first gear and the third gear.

[0010] As a further improvement of the present invention, the screening mechanism includes a screen plate arranged inside the device slot, and two guide rods slidingly connected to the screen plate are provided through the screen plate, and both ends of the guide rods are fixed on the inner wall of the device slot, and two springs are mounted on the guide rod, and the two springs are respectively located on both sides of the screen plate.

[0011] As a further improvement of the present invention, a magnetic isolation plate is fixed on the side wall of the screen plate, and the magnetic isolation plate extends out of the device slot and is fixed with an adsorption plate, and a swing rod is rotatably mounted on the outer wall of the rotating tube, and a magnetic block cooperating with the adsorption plate is fixed at the lower end of the swing rod, and a movable groove is penetrated through the lower part of the inner wall of the rotating groove, and the magnetic block is located inside the movable groove, and a rotating column is rotatably connected to the side wall of the fixed frame, and a tooth column is fixed on the end of the rotating column away from the fixed frame, and a pull groove is provided on the side wall of the swing rod, and the tooth column is located on the inner side of the pull groove, and a second synchronous wheel is fixedly sleeved on the side wall of the rotating column, and a first synchronous wheel is fixedly sleeved on the side wall of the first rotating shaft, and the first synchronous wheel and the second synchronous wheel are sleeved by a synchronous belt.

[0012] As a further improvement of the present invention, a flexible connecting membrane is fixed to the surface edge of the screen plate, and the side of the flexible connecting membrane away from the screen plate is fixed to the inner wall of the device groove.

[0013] As a further improvement of the present invention, a discharge trough connected to the rotating trough is provided at the bottom of the box body, and a discharge pipe corresponding to the discharge trough is fixed at the bottom of the box body.

[0014] As a further improvement of the present invention, legs are fixed at the four corners of the bottom of the box.

[0015] A method for producing cobalt-based alloy powder for cemented carbide, using the cobalt-based alloy powder production device for cemented carbide, the method comprising the following steps:

[0016] S1, taking the metal raw material of the cobalt-based alloy powder, adding the metal raw material into a smelting furnace and completely melting it to obtain a metal melt;

[0017] S2, introducing the metal solution in S1 into a gas atomization reactor for atomization cooling treatment to obtain cobalt-based alloy particles;

[0018] S3, introducing the cobalt-based alloy powder obtained in S2 into a grinding and screening device through a feed pipe, grinding and screening the cobalt-based alloy particles using the grinding and screening device to obtain the cobalt-based alloy powder, and discharging the cobalt-based alloy powder through a discharge pipe.

[0019] Beneficial effects of the present invention:

[0020] When the cobalt-based alloy particles are screened by the screen plate, the cobalt-based alloy particles that do not meet the fineness requirements are intercepted by the screen plate and can be carried back to the grinding sleeve for further grinding through the rotation of the rotating frame, which can ensure that the cobalt-based alloy powder after grinding and screening meets the required fineness. By utilizing the rotation of the rotating frame, a stable return material cycle is formed, and the cyclic grinding process of the cobalt-based alloy particles can be automatically completed. This closed-loop circulation design can achieve sufficient grinding and greatly improve the grinding efficiency.

[0021] By utilizing the magnetic adsorption effect between the magnetic block and the adsorption plate, the magnetic block can drive the adsorption plate to move back and forth when it moves back and forth, and then drive the screen plate to move back and forth through the magnetic isolation plate. Then, while the rotating frame drives the screen plate to rotate circumferentially, it can still drive the screen plate to vibrate back and forth, and utilize the screen plate to generate high-frequency vibration, which effectively improves the screening efficiency of cobalt-based alloy particles and greatly reduces the problem of easy clogging of the screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a cobalt-based alloy powder production device for cemented carbide of the present invention;

[0023] Figure 2 It is a structural diagram of the box body, rotating trough, movable trough, discharge trough and discharge pipe of the present invention;

[0024] Figure 3 It is a structural diagram of the rotating frame, screen plate, rotating tube and driving mechanism of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the rotating frame, device slot, grinding sleeve, feed port, partition, and arc-shaped baffle of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the screening mechanism, magnetic isolation plate, adsorption plate, magnetic block, swing rod, and prying groove of the present invention;

[0027] Figure 6 Schematic diagram of the cross-sectional structure of the interior of the grinding sleeve of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the rotating column and tooth column of the present invention.

[0029] In the figure: 1 smelting furnace, 2 atomization reactor, 3 grinding and screening equipment, 4 box body, 5 door panel, 6 feed pipe, 7 discharge pipe, 8 legs, 9 rotating trough, 10 discharge trough, 11 movable trough, 12 feed port, 13 rotating frame, 14 screen plate, 15 rotating pipe, 16 first gear, 17 second gear, 18 third gear, 19 power motor, 20 first synchronous wheel, 21 first rotating shaft, 22 synchronous belt, 23 second synchronous wheel, 24 fixed frame, 25 rotating column, 26 swing rod, 27 device groove, 28 partition, 29 grinding sleeve, 30 arc baffle, 31 guide rod, 32 spring, 33 magnetic isolation plate, 34 adsorption plate, 35 magnetic block, 36 pull groove, 37 grinding block, 38 installation cavity, 39 second rotating shaft, 40 fourth gear, 41 fifth gear, 42 tooth column, 43 flexible connection diaphragm. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0031] Reference Figure 1-Figure 7 A device for producing cobalt-based alloy powder for cemented carbide comprises a smelting furnace 1, an atomizing reactor 2 connected to the smelting furnace 1, and a grinding and screening device 3 connected to the atomizing reactor 2. Support legs 8 are fixed at the four corners of the bottom of the box body 4. The support legs 8 support the box body 4 to maintain stability. The grinding and screening device 3 comprises a box body 4, a rotating groove 9 is provided on the side wall of the box body 4, a discharge groove 10 connected to the rotating groove 9 is provided at the bottom of the box body 4, a discharge pipe 7 corresponding to the discharge groove 10 is fixed at the bottom of the box body 4, a door panel 5 located outside the rotating groove 9 is fixed on the side wall of the box body 4, a rotating frame 13 is provided inside the rotating groove 9, and the inner wall of the rotating frame 13 A plurality of device grooves 27 are provided on it, and the plurality of device grooves 27 are arranged at equal intervals along the circumference of the rotating frame 13. The inner wall of each device groove 27 is provided with a screening mechanism. A plurality of partitions 28 are fixed on the inner wall of the rotating frame 13, and the plurality of partitions 28 are arranged at equal intervals along the circumference of the rotating frame 13, and each partition 28 is located between adjacent device grooves 27. A rotating tube 15 fixedly connected to the rotating frame 13 is provided at the center of the side wall of the rotating frame 13. The rotating tube 15 passes through the inner wall of the rotating groove 9 and extends to the outside of the box body 4. A grinding mechanism is provided on the inner side of the rotating frame 13, and a driving mechanism is provided on the outer wall of the box body 4. The driving mechanism is connected with the grinding mechanism and the rotating tube 15.

[0032] The grinding machine mechanism includes a grinding sleeve 29 arranged on the inner side of the rotating frame 13, and arc-shaped baffles 30 are fixed on both side walls of the grinding sleeve 29. The arc-shaped baffles 30 are in contact with the inner wall of the rotating frame 13. The arc-shaped baffles 30 always keep in contact with the inner wall of the rotating frame 13 to prevent leakage of cobalt-based alloy particles. A feed port 12 is provided on the side wall of the grinding sleeve 29, and a feed pipe 6 is connected to the inside of the feed port 12. The end of the feed pipe 6 away from the grinding sleeve 29 passes through the door panel 5 and is connected to the aerosol reactor 2. The grinding sleeve 29 is fixedly connected to the inner wall of the door panel 5. A grinding block 37 is provided inside the grinding sleeve 29, and a mounting cavity 3 is provided inside the grinding sleeve 29. 8. A second rotating shaft 39 is rotatably connected to the inner bottom wall of the mounting cavity 38. The upper end of the second rotating shaft 39 passes through the inner top wall of the mounting cavity 38 and is fixedly connected to the lower end of the grinding block 37. A fourth gear 40 is fixedly sleeved on the side wall of the second rotating shaft 39. A first rotating shaft 21 rotatably connected to the grinding sleeve 29 is passed through the side wall of the grinding sleeve 29. The first rotating shaft 21 is rotatably connected to the grinding sleeve 29 through a bearing. One end of the first rotating shaft 21 is located on the inner side of the mounting cavity 38 and is fixed with a fifth gear 41. The fifth gear 41 is meshed with the fourth gear 40. The other end of the first rotating shaft 21 passes through the rotating tube 15 and extends to the outside of the box body 4.

[0033] The driving mechanism includes a fixing frame 24 fixed on the outer wall of the box body 4, and a power motor 19 is installed on the side wall of the fixing frame 24. The output shaft of the power motor 19 passes through the fixing frame 24 and is fixedly connected to the end of the first rotating shaft 21. The third gear 18 is fixedly sleeved on the side wall of the first rotating shaft 21, and the second gear 17 is rotatably connected to the inner top wall of the fixing frame 24. The first gear 16 is fixedly sleeved on the side wall of the rotating tube 15, and the upper and lower sides of the second gear 17 are respectively engaged with the first gear 16 and the third gear 18. The diameter of the third gear 18 is much smaller than the diameter of the first gear 16 and the second gear 17. Therefore, when the first rotating shaft 21 drives the grinding block 37 to rotate at a faster speed, the rotating tube 15 can drive the rotating frame 13 to rotate at a relatively slower speed, so that the screen plate 14 can be fully screened.

[0034] The screening mechanism includes a screen plate 14 arranged inside the device groove 27, and a flexible connecting diaphragm 43 is fixed at the surface edge of the screen plate 14. The side of the flexible connecting diaphragm 43 away from the screen plate 14 is fixed on the inner wall of the device groove 27. The flexible connecting diaphragm 43 is made of fluororubber and has outstanding high temperature resistance. Its flexible characteristics will not limit the movement of the screen plate 14, thereby preventing particles from leaking out from the gap between the screen plate 14 and the device groove 27. Two guide rods 31 that are slidably connected to the screen plate 14 are provided on the screen plate 14. Both ends of the guide rod 31 are fixed on the inner wall of the device groove 27. Two springs 32 are installed on the guide rod 31, and the two springs 32 are respectively located on both sides of the screen plate 14.

[0035] A magnetic isolation plate 33 is fixed on the side wall of the screen plate 14, and the magnetic isolation plate 33 extends out of the device groove 27 and is fixed with an adsorption plate 34. A swing rod 26 is rotatably mounted on the outer wall of the rotating tube 15, and a magnetic block 35 that cooperates with the adsorption plate 34 is fixed to the lower end of the swing rod 26. The magnetic isolation plate 33 can block the influence of the magnetic block 35 on the inside of the rotating frame 13. A movable groove 11 is penetrated at the lower part of the inner wall of the rotating groove 9, and the magnetic block 35 is located inside the movable groove 11. By utilizing the magnetic adsorption effect of the magnetic block 35 and the adsorption plate 34, the magnetic block 35 can drive the adsorption plate 34 to move back and forth when it moves back and forth, and then drive the screen plate 14 to move back and forth through the magnetic isolation plate 33. , and thus, while the rotating frame 13 drives the screen plate 14 to rotate circumferentially, it can still drive the screen plate 14 to vibrate reciprocatingly. A rotating column 25 is rotatably connected to the side wall of the fixed frame 24, and a tooth column 42 is fixed to the end of the rotating column 25 away from the fixed frame 24. A sliding groove 36 is provided on the side wall of the swing rod 26. The tooth column 42 is located on the inner side of the sliding groove 36. The tooth column 42 is a cylindrical structure, and the tooth column 42 slides inside the sliding groove 36. The second synchronous wheel 23 is fixedly sleeved on the side wall of the rotating column 25, and the first synchronous wheel 20 is fixedly sleeved on the side wall of the first rotating shaft 21. The first synchronous wheel 20 and the second synchronous wheel 23 are sleeved by a synchronous belt 22.

[0036] When the cobalt-based alloy powder production device for cemented carbide of the present invention is used, the operator starts the power motor 19 on the fixed frame 24. The output shaft of the power motor 19 drives the first rotating shaft 21 to rotate. The fourth gear 40 and the fifth gear 41 drive the second rotating shaft 39 to rotate, and the grinding block 37 is driven to rotate by the second rotating shaft 39.

[0037] The first gear 16, the third gear 18 and the second gear 17 are meshed to drive the rotating tube 15 to rotate, and the rotating frame 13 is driven to rotate in the rotating groove 9 through the rotating tube 15;

[0038] The cobalt-based alloy particles produced by the gas atomization reactor 2 enter the grinding sleeve 29 through the feed pipe 6. The grinding block 37 cooperates with the grinding sleeve 29 to finely grind the cobalt-based alloy particles into cobalt-based alloy powder. The ground cobalt-based alloy powder falls into the rotating frame 13. When the cobalt-based alloy powder falls onto the screen plate 14 in the device tank 27, the cobalt-based alloy powder is screened by the screen plate 14. Cobalt-based alloy powder of qualified particle size passes through the screen plate 14 and enters the discharge trough 10 and is discharged through the discharge pipe 7. Cobalt-based alloy particles that are not fully ground are trapped on the surface of the screen plate 14.

[0039] When the first rotating shaft 21 rotates, the transmission of the first synchronous wheel 20, the synchronous belt 22 and the second synchronous wheel 23 can drive the rotating column 25 to drive the tooth column 42 to rotate. The tooth column 42 periodically toggles the toggle slot 36 on the swing rod 26, causing the swing rod 26 to swing back and forth around the rotating tube 15, driving the magnetic block 35 at the lower end of the swing rod 26 to move back and forth in the movable groove 11. Due to the magnetic adsorption effect between the magnetic block 35 and the adsorption plate 34, the magnetic block 35 can drive the adsorption plate 34 to move back and forth when it moves back and forth. The screen plate 14 can be driven to vibrate axially along the guide rod 31 through the magnetic isolation plate 33. Combined with the compression and extension of the spring 32, the screen plate 14 can produce reciprocating vibration, thereby effectively improving the screening effect of the screen plate 14 on the cobalt-based alloy particles, and preventing the screen plate 14 from being blocked, thereby maintaining good screening efficiency.

[0040] The cobalt-based alloy particles trapped on the surface of the screen plate 14 are carried to the top of the grinding sleeve 29 as the rotating frame 13 rotates, and re-enter the grinding sleeve 29 for secondary grinding under the action of gravity.

[0041] A method for producing cobalt-based alloy powder for cemented carbide, using a cobalt-based alloy powder production device for cemented carbide, the method comprising the following steps:

[0042] S1, taking a metal raw material of a cobalt-based alloy powder, adding the metal raw material into a smelting furnace 1 and completely melting the metal raw material to obtain a metal melt;

[0043] S2, introducing the metal solution in S1 into a gas atomization reactor 2 for atomization cooling treatment to obtain cobalt-based alloy particles;

[0044] S3, introducing the cobalt-based alloy powder obtained in S2 into the grinding and screening device 3 through the feeding pipe 6, grinding and screening the cobalt-based alloy particles by the grinding and screening device 3 to obtain cobalt-based alloy powder, and discharging the cobalt-based alloy powder through the discharging pipe 7.

[0045] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A device for producing cobalt-based alloy powder for cemented carbide, comprising a smelting furnace (1) and a gas atomization reaction furnace (2) connected to the smelting furnace (1), characterized in that: The invention also includes a grinding and screening device (3) connected to the atomization reaction furnace (2), wherein the grinding and screening device (3) includes a box body (4), a rotating groove (9) is provided on the side wall of the box body (4), a door panel (5) located outside the rotating groove (9) is fixed on the side wall of the box body (4), a rotating frame (13) is provided inside the rotating groove (9), a plurality of device grooves (27) are provided through the inner wall of the rotating frame (13), the plurality of device grooves (27) are arranged at equal intervals along the circumference of the rotating frame (13), and a screening mechanism is provided on the inner wall of each device groove (27). A plurality of partitions (28) are fixed on the inner wall of the rotating frame (13), and the plurality of partitions (28) are arranged at equal intervals along the circumference of the rotating frame (13), and each partition (28) is located between adjacent device grooves (27). A rotating tube (15) fixedly connected to the rotating frame (13) is provided at the center of the side wall of the rotating frame (13). The rotating tube (15) passes through the inner wall of the rotating groove (9) and extends to the outside of the box body (4). A grinding mechanism is provided on the inner side of the rotating frame (13), and a driving mechanism is provided on the outer wall of the box body (4). The driving mechanism is connected to the grinding mechanism and the rotating tube (15).

2. The device for producing cobalt-based alloy powder for cemented carbide according to claim 1, characterized in that: The grinding machine mechanism includes a grinding sleeve (29) arranged on the inner side of the rotating frame (13), and arc-shaped baffles (30) are fixed on both side walls of the grinding sleeve (29), and the arc-shaped baffles (30) are in contact with the inner wall of the rotating frame (13). A feed port (12) is provided on the side wall of the grinding sleeve (29), and a feed pipe (6) is connected to the inside of the feed port (12). The end of the feed pipe (6) away from the grinding sleeve (29) passes through the door panel (5) and is connected to the aerosol reactor (2). The grinding sleeve (29) is fixedly connected to the inner wall of the door panel (5), and a grinding block (37) is provided inside the grinding sleeve (29). The grinding sleeve (29) is provided with a mounting cavity (38) inside. A second rotating shaft (39) is rotatably connected to the inner bottom wall of the mounting cavity (38), the upper end of the second rotating shaft (39) passes through the inner top wall of the mounting cavity (38) and is fixedly connected to the lower end of the grinding block (37), a fourth gear (40) is fixedly sleeved on the side wall of the second rotating shaft (39), a first rotating shaft (21) rotatably connected to the grinding sleeve (29) is passed through the side wall of the grinding sleeve (29), one end of the first rotating shaft (21) is located on the inner side of the mounting cavity (38) and is fixed with a fifth gear (41), the fifth gear (41) is meshed with the fourth gear (40), the other end of the first rotating shaft (21) passes through the rotating tube (15) and extends to the outside of the box body (4).

3. The device for producing cobalt-based alloy powder for cemented carbide according to claim 2, characterized in that: The driving mechanism comprises a fixing frame (24) fixed on the outer wall of the box body (4), a power motor (19) is installed on the side wall of the fixing frame (24), an output shaft of the power motor (19) passes through the fixing frame (24) and is fixedly connected to the end of the first rotating shaft (21), a third gear (18) is fixedly sleeved on the side wall of the first rotating shaft (21), a second gear (17) is rotatably connected to the inner top wall of the fixing frame (24), a first gear (16) is fixedly sleeved on the side wall of the rotating tube (15), and the upper and lower sides of the second gear (17) are respectively engaged with the first gear (16) and the third gear (18).

4. The device for producing cobalt-based alloy powder for cemented carbide according to claim 3, characterized in that: The screening mechanism comprises a screen plate (14) arranged inside a device slot (27); two guide rods (31) are provided through the screen plate (14) and are slidably connected to the screen plate (14); both ends of the guide rods (31) are fixed to the inner wall of the device slot (27); two springs (32) are mounted on the guide rods (31); and the two springs (32) are respectively located on both sides of the screen plate (14).

5. The device for producing cobalt-based alloy powder for cemented carbide according to claim 4, characterized in that: A magnetic isolation plate (33) is fixed on the side wall of the screen plate (14), and the magnetic isolation plate (33) extends out of the device groove (27) and is fixed with an adsorption plate (34). A swing rod (26) is rotatably mounted on the outer wall of the rotating tube (15), and a magnetic block (35) that cooperates with the adsorption plate (34) is fixed at the lower end of the swing rod (26). A movable groove (11) is penetrated through the lower part of the inner wall of the rotating groove (9), and the magnetic block (35) is located inside the movable groove (11). The side wall of the fixed frame (24) is provided with a magnetic block (35) that is fixed to the magnetic block (35) and is fixed to the magnetic block (35) that cooperates with the adsorption plate (34). A rotating column (25) is rotatably connected, and a tooth column (42) is fixed on one end of the rotating column (25) away from the fixed frame (24). A shifting groove (36) is provided on the side wall of the swinging rod (26), and the tooth column (42) is located on the inner side of the shifting groove (36). A second synchronous wheel (23) is fixedly sleeved on the side wall of the rotating column (25), and a first synchronous wheel (20) is fixedly sleeved on the side wall of the first rotating shaft (21). The first synchronous wheel (20) and the second synchronous wheel (23) are sleeved through a synchronous belt (22).

6. The device for producing cobalt-based alloy powder for cemented carbide according to claim 4, characterized in that: A flexible connecting membrane (43) is fixed at the surface edge of the screen plate (14), and the side of the flexible connecting membrane (43) away from the screen plate (14) is fixed on the inner wall of the device groove (27).

7. The device for producing cobalt-based alloy powder for cemented carbide according to claim 1, characterized in that: The bottom of the box body (4) is provided with a discharge trough (10) connected to the rotating trough (9), and the bottom of the box body (4) is fixed with a discharge pipe (7) corresponding to the discharge trough (10).

8. The device for producing cobalt-based alloy powder for cemented carbide according to claim 1, characterized in that: Support legs (8) are fixed at the four corners of the bottom of the box body (4).

9. A method for producing cobalt-based alloy powder for cemented carbide, characterized in that: Using the cobalt-based alloy powder production device for cemented carbide according to any one of claims 1 to 8, the method comprises the following steps: S1, taking the metal raw material of the cobalt-based alloy powder, adding the metal raw material into a smelting furnace (1) and completely melting it to obtain a metal melt; S2, introducing the metal solution in S1 into a gas atomization reactor (2) for atomization cooling treatment to obtain cobalt-based alloy particles; S3, introducing the cobalt-based alloy powder obtained in S2 into the grinding and screening device (3) through the feeding pipe (6), grinding and screening the cobalt-based alloy particles using the grinding and screening device (3) to obtain the cobalt-based alloy powder, and discharging the cobalt-based alloy powder through the discharging pipe (7).

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