Powder filtering equipment for powder preparation through gas atomization

Abstract

The invention relates to the technical field of filtering equipment, and discloses powder filtering equipment for gas atomization powder.The powder filtering equipment comprises a filtering box, a gas inlet pipe communicated with the interior of the filtering box is fixedly installed on the outer surface of the side, close to the bottom, of the filtering box, and an exhaust pipe communicated with the interior of the filtering box is fixedly installed at the top end of the filtering box; and a supporting shaft is rotatably mounted between the outer surfaces of the two opposite sides of the filtering box in a penetrating manner. When the push disc moves, metal powder adhered to the inner wall of the filter cartridge can be scraped until the push disc pushes the metal powder out of the filter cartridge, so that the cleaning effect on the inner wall of the filter cartridge is realized, and the metal powder is prevented from blocking the filter holes and affecting the ventilation effect of the filter cartridge; and moreover, the filtered metal powder can be collected while the gas containing the metal powder is continuously filtered, and the collection operation does not need to be independently carried out after the filtering is completed, so that the filtering efficiency of the metal powder is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filtering equipment, and in particular to a powder filtering equipment for aerosol powder making. Background Art

[0002] Gas atomization powder making has the advantages of high powder sphericity, low oxygen content and high cooling rate. After years of continuous innovation and improvement, gas atomization powder making technology has developed into the main method for producing high-performance metal and alloy powders. However, in the process of powder making, some ultrafine powders fly out along the pipeline with high-speed airflow. If not handled, it will pollute the environment and waste materials, so it must be recycled. The existing powder collector of a gas atomization powder making equipment (Announcement No.: CN204891498U) has at least the following disadvantages: The above patent uses round beads with a water layer attached to the surface to adhere to the powder in the gas mixed with powder, thereby completing the filtering and collecting operation; after the filtration of the powder in the gas is completed, the powder adhered to the surface of the round beads needs to be collected separately, which affects the filtration efficiency of the metal powder. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a powder filtering device for aerosol powder making.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A powder filtering device for aerosol powder making comprises a filter box, an outer surface of the filter box near the bottom side is fixedly installed with an air inlet pipe connected with the interior thereof, and an exhaust pipe connected with the interior thereof is fixedly installed on the top of the filter box, a support shaft is rotatably installed between the outer surfaces of the opposite sides of the filter box, and a rotating disk is fixedly installed on the outer surface of the support shaft, one side of the rotating disk is in contact with the inner wall of the filter box near the air inlet pipe, a plurality of through holes are evenly penetrated in the circumferential direction of the outer surface of the rotating disk, and a filter cartridge is rotatably installed on the inner wall of each through hole, and the plurality of filter cartridges are intermittently connected with the air inlet pipe in sequence, one end of the filter cartridge is a closed structure according to the rotating disk principle, a plurality of filter holes are evenly penetrated on the outer circumference of the filter cartridge, and a cleaning mechanism is installed inside the filter cartridge.

[0005] As a further solution of the present invention, the cleaning mechanism includes a guide rod inserted through the closed end of the filter cartridge, a push plate is fixedly installed on one end of the guide rod, the push plate is slidably installed with the inner wall of the filter cartridge, a limiting ring is fixedly installed on the other end of the guide rod, a pushing assembly for pushing the push plate to move is installed inside the filter box, and a reset assembly is installed on the outer surface of the guide rod.

[0006] As a further solution of the present invention, the pushing assembly includes a fixing ring fixedly mounted on the inner wall of the filter box away from the air inlet pipe, and an arc-shaped boss is fixedly mounted on the outer surface of the fixing ring close to the rotating disk, and both side edges of the arc-shaped boss are inclined structures.

[0007] As a further solution of the present invention, the reset assembly includes a reset spring sleeved on the outer surface of the guide rod, and the reset spring is arranged between the limit ring and the end of the closed end of the filter cartridge.

[0008] As a further solution of the present invention, a dehydration mechanism is also installed between the filter cartridge and the filter box, and the dehydration mechanism includes a transmission gear fixedly installed on the outer periphery of the filter cartridge, a mounting ring is fixedly installed on the inner wall of the filter box close to the rotating disk, an arc-shaped rack is fixedly installed on the inner wall of the mounting ring, and a plurality of transmission gears installed on the outer periphery of the filter cartridge intermittently mesh with the arc-shaped rack for transmission.

[0009] As a further solution of the present invention, a discharge port is formed through the outer surface of the filter box near the top thereof, and a discharge hopper that can move up and down is installed on the outer surface of the filter box near the discharge port. The end of the discharge hopper is slidably installed on the outer surface of the filter box, and a sealing ring is embedded in the end of the discharge hopper that contacts the filter box, and a connecting assembly is installed between the filter box and the discharge hopper.

[0010] As a further solution of the present invention, the connecting assembly includes two fixed blocks fixedly installed on the outer surface of the filter box near the discharge port, and the two fixed blocks are respectively arranged on both sides of the discharge hopper. A spring rod is fixedly installed on the bottom end of the fixed block, and the telescopic end of the spring rod is fixedly installed on the outer surface of the discharge hopper. A shaking assembly is installed between the support shaft and the discharge hopper.

[0011] As a further solution of the present invention, the shaking assembly includes a connecting ring fixedly mounted on the outer surface of one end of the support shaft close to the discharge hopper, a plurality of arc-shaped protrusions are evenly and fixedly mounted on the outer periphery of the connecting ring, and the bottom of the discharge hopper abuts against the outer periphery of the connecting ring.

[0012] As a further solution of the present invention, a stepper motor is fixedly mounted on the outer surface of the filter box away from the air intake pipe, and the output end of the stepper motor is fixedly mounted to the rotation center of the support shaft.

[0013] The beneficial effects of the present invention are: 1. By passing the gas containing metal powder into the filter box from the air inlet pipe, the gas containing metal powder will enter the filter cartridge immersed in water, so that the water can separate the gas from the metal powder. The metal powder remains in the filter cartridge. After the gas escapes from the water surface, it is discharged into the gas recovery process through the exhaust pipe installed on the top of the filter box, thereby achieving the filtering effect of the metal powder; 2. The support shaft is driven to rotate by a stepper motor, so that the support shaft drives multiple filter cartridges to rotate through a rotating disk, and the filter cartridge immersed in water and participating in the filtering operation is lifted out of the water, so that the next filter cartridge that has been cleaned inside can rotate to the air intake pipe to continue the filtering operation, so as to avoid excessive metal powder adhering to the inner wall of the filter cartridge participating in the filtering operation, which will affect the exhaust effect; 3. The filter cartridge is driven to rotate by the rotating disk. After the limiting ring installed on the filter cartridge abuts against the hypotenuse of the arc-shaped boss, the arc-shaped boss will push the push plate toward the outside of the filter cartridge through the limiting ring and the guide rod, so that the push plate can scrape off the metal powder adhering to the inner wall of the filter cartridge when moving, until the push plate pushes the metal powder out of the filter cartridge, thereby achieving a cleaning effect on the inner wall of the filter cartridge and preventing the metal powder from clogging the filter holes and affecting the ventilation effect of the filter cartridge; and the filtered metal powder can be collected while continuously filtering the gas containing the metal powder, without the need for a separate collection operation after the filtration is completed, thereby improving the filtration efficiency of the metal powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a powder filtering device for aerosol powder making proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a powder filtering device for aerosol powder making proposed by the present invention; Figure 3 This is a schematic diagram of the installation structure of the rotating disk and filter cartridge of a powder filtering device for aerosol powder making proposed by the present invention; Figure 4 This is a schematic diagram of the internal structure of a filter cartridge of a powder filtering device for aerosol powder making proposed by the present invention; Figure 5 This is a schematic diagram of the arc-shaped boss structure of a powder filtering device for aerosol powder making proposed by the present invention; Figure 6 This is a schematic diagram of the split state of the rotating disk and the mounting ring of the powder filtering device for aerosol powder making proposed by the present invention; Figure 7 for Figure 2 A magnified view of the structure in the middle.

[0015] In the figure: 1. filter box; 2. air inlet pipe; 3. exhaust pipe; 4. support shaft; 5. rotating disk; 6. through hole; 7. filter cartridge; 8. guide rod; 9. push plate; 10. limit ring; 11. reset spring; 12. transmission gear; 13. mounting ring; 14. arc-shaped rack; 15. filter hole; 16. fixing ring; 17. arc-shaped boss; 18. stepping motor; 19. connecting ring; 20. arc-shaped boss; 21. discharge port; 22. spring rod; 23. fixing block; 24. discharge hopper. DETAILED DESCRIPTION

[0016] 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.

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] Refer to the attached Figure 1 -Attached Figure 7 , a powder filtering device for aerosol powder making, comprising a filter box 1, an air inlet pipe 2 connected to the inside of the filter box 1 is fixedly installed on the outer surface of the filter box 1 near the bottom side thereof, and a one-way valve is installed on the air inlet pipe 2 for one-way conduction to the inside of the filter box 1 to prevent water in the filter box 1 from flowing back into the air inlet pipe 2; an exhaust pipe 3 connected to the inside of the filter box 1 is fixedly installed on the top of the filter box 1, and a drying box is installed at the air outlet end of the exhaust pipe 3, so that the gas discharged from the exhaust pipe 3 passes through the drying box and then is discharged into the gas recovery process. Since the drying box is filled with a desiccant, the water vapor in the discharged gas is adsorbed by the desiccant to prevent the water vapor from affecting the subsequent gas recovery operation; the outer surfaces of the filter box 1 on opposite sides A support shaft 4 is rotatably installed therein, a rotating disk 5 is fixedly installed on the outer surface of the support shaft 4, one side of the rotating disk 5 is in contact with the inner wall of the filter box 1 close to the air inlet pipe 2, a plurality of through holes 6 are evenly penetrated in the circumferential direction of the outer surface of the rotating disk 5, a filter cartridge 7 is rotatably installed on the inner wall of each through hole 6, a plurality of filter cartridges 7 are intermittently connected to the air inlet pipe 2 in sequence, one end of the rotating disk 5 of the filter cartridge 7 is a closed structure, a plurality of filter holes 15 are evenly penetrated on the outer circumference of the filter cartridge 7, a cleaning mechanism is installed inside the filter cartridge 7, a stepper motor 18 is fixedly installed on the outer surface of the filter box 1 away from the air inlet pipe 2, and the output end of the stepper motor 18 is fixedly installed to the rotation center of the support shaft 4.

[0019] In this embodiment, the cleaning mechanism includes a guide rod 8 inserted through the closed end of the filter cartridge 7, a push plate 9 is fixedly installed on one end of the guide rod 8, and the push plate 9 is slidably installed with the inner wall of the filter cartridge 7, and a limit ring 10 is fixedly installed on the other end of the guide rod 8. A pushing component for pushing the push plate 9 to move is installed inside the filter box 1, and a reset component is installed on the outer surface of the guide rod 8. The pushing component includes a fixed ring 16 fixedly installed on the inner wall of the filter box 1 away from the air inlet pipe 2, and an arc boss 17 is fixedly installed on the outer surface of the fixed ring 16 close to the rotating disk 5. Both sides of the arc boss 17 are inclined structures. The reset component includes a reset spring 11 sleeved on the outer surface of the guide rod 8, and the reset spring 11 is arranged between the limit ring 10 and the end of the closed end of the filter cartridge 7.

[0020] When the filter cartridge 7 is lifted out of the water, the water in the filter cartridge 7 can be drained out, leaving the metal powder in the filter cartridge 7; as the rotating disk 5 drives the filter cartridge 7 to rotate next time, after the limiting ring 10 installed on the filter cartridge 7 abuts against the hypotenuse of the arc-shaped boss 17, the arc-shaped boss 17 will push the push plate 9 toward the outside of the filter cartridge 7 through the limiting ring 10 and the guide rod 8, so that the push plate 9 can scrape off the metal powder adhered to the inner wall of the filter cartridge 7 when moving, until the push plate 9 pushes the metal powder out of the filter cartridge 7, thereby achieving the cleaning effect of the inner wall of the filter cartridge 7 and preventing the metal powder from clogging the filter holes 15 and affecting the ventilation effect of the filter cartridge 7.

[0021] In this embodiment, a dehydration mechanism is also installed between the filter cartridge 7 and the filter box 1. The dehydration mechanism includes a transmission gear 12 fixedly installed on the outer periphery of the filter cartridge 7. A mounting ring 13 is fixedly installed on the inner wall of the filter box 1 close to the rotating disk 5. An arc-shaped rack 14 is fixedly installed on the inner wall of the mounting ring 13. The transmission gears 12 installed on the outer periphery of the filter cartridges 7 intermittently mesh with the arc-shaped rack 14 for transmission.

[0022] After the transmission gear 12 installed on the outer periphery of the filter cartridge 7 meshes with the arc-shaped rack 14, as the rotating disk 5 drives the filter cartridge 7 to continue to move, the filter cartridge 7 will rotate, causing the filter cartridge 7 to throw out the residual water inside it, thereby reducing the water content of the metal powder.

[0023] The filter box 1 is provided with a discharge port 21 on its outer surface near the top thereof, and a discharge hopper 24 which can move up and down is installed on the outer surface of the filter box 1 near the discharge port 21. The end of the discharge hopper 24 is slidably installed on the outer surface of the filter box 1, and a sealing ring is embedded in the end of the discharge hopper 24 which contacts the filter box 1. A connecting component is installed between the filter box 1 and the discharge hopper 24, and the connecting component includes two fixed blocks 23 fixedly installed on the outer surface of the filter box 1 near the discharge port 21. The two fixed blocks 23 are respectively arranged on both sides of the discharge hopper 24, and a spring rod 22 is fixedly installed on the bottom end of the fixed block 23. The telescopic end of the spring rod 22 is fixedly installed on the outer surface of the discharge hopper 24, and a shaking component is installed between the support shaft 4 and the discharge hopper 24. The shaking component includes a connecting ring 19 fixedly installed on the outer surface of one end of the support shaft 4 near the discharge hopper 24, and a plurality of arc-shaped protrusions 20 are evenly fixedly installed on the outer periphery of the connecting ring 19, and the bottom of the discharge hopper 24 is against the outer periphery of the connecting ring 19.

[0024] As the rotating disk 5 continues to rotate, the push plate 9 is flush with the surface of the rotating disk 5, so that the metal powder pushed out by the push plate 9 is scraped by the side wall of the discharge port 21 into the discharge hopper 24, and the discharge hopper 24 discharges the metal powder for collection; while the support shaft 4 rotates, the arc-shaped protrusion 20 is driven to rotate through the connecting ring 19, so that the arc-shaped protrusion 20 cooperates with the use of the spring rod 22 during rotation, which can make the discharge hopper 24 produce an up and down shaking effect, so that the metal powder falling into the discharge hopper 24 can be discharged quickly.

[0025] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when in use, a certain amount of water is injected into the interior of the filter box 1 (the injected water level is higher than the air outlet of the air inlet pipe 2), and the gas containing metal powder is passed into the filter box 1 from the air inlet pipe 2, and the gas containing metal powder will enter the interior of the filter cartridge 7 immersed in water, so that the water can separate the gas from the metal powder, and the metal powder remains in the filter cartridge 7. After the gas escapes from the water surface, it is discharged into the gas recovery process through the exhaust pipe 3 installed on the top of the filter box 1, thereby achieving a filtering effect on the metal powder; After filtering for a certain period of time, the stepper motor 18 drives the support shaft 4 to rotate, so that the support shaft 4 drives multiple filter cartridges 7 to rotate through the rotating disk 5, and the filter cartridge 7 immersed in water and participating in the filtering operation is lifted out of the water, so that the next filter cartridge 7 that has been cleaned inside rotates to the air inlet pipe 2 to continue the filtering operation, so as to avoid excessive metal powder adhering to the inner wall of the filter cartridge 7 participating in the filtering operation, thereby affecting the exhaust effect; When the filter cartridge 7 is lifted out of the water, the water in the filter cartridge 7 can be drained out, leaving the metal powder in the filter cartridge 7; as the rotating disk 5 drives the filter cartridge 7 to rotate next time, after the limiting ring 10 installed on the filter cartridge 7 abuts against the hypotenuse of the arc-shaped boss 17, the arc-shaped boss 17 will push the push plate 9 to the outside of the filter cartridge 7 through the limiting ring 10 and the guide rod 8, so that the push plate 9 can scrape off the metal powder adhered to the inner wall of the filter cartridge 7 when moving, until the push plate 9 pushes the metal powder out of the filter cartridge 7, thereby achieving the cleaning effect of the inner wall of the filter cartridge 7 and preventing the metal powder from clogging the filter hole 15 and affecting the ventilation effect of the filter cartridge 7; As the rotating disk 5 continues to rotate, the push disk 9 is flush with the surface of the rotating disk 5, so that the metal powder pushed out by the push disk 9 is scraped by the side wall of the discharge port 21 into the discharge hopper 24, so that the discharge hopper 24 discharges the metal powder for collection; When the support shaft 4 rotates, the arc-shaped protrusion 20 will be driven to rotate through the connecting ring 19, so that the arc-shaped protrusion 20 cooperates with the use of the spring rod 22 during rotation, and the discharge hopper 24 can produce an up and down shaking effect, so that the metal powder falling into the discharge hopper 24 can be discharged quickly.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A powder filtering device for aerosol powder making, comprising a filter box (1), characterized in that: An air intake pipe (2) connected to the interior of the filter box (1) is fixedly mounted on the outer surface of one side near the bottom of the filter box (1), and an exhaust pipe (3) connected to the interior of the filter box (1) is fixedly mounted on the top of the filter box (1). A support shaft (4) is rotatably mounted between the outer surfaces of the two opposite sides of the filter box (1), and a rotating disk (5) is fixedly mounted on the outer surface of the support shaft (4). One side of the rotating disk (5) is in contact with the inner wall of the filter box (1) on the side near the air intake pipe (2). A plurality of through holes (6) are evenly penetrated through the outer surface of the rotating disk (5) in a circumferential direction, and a filter cartridge (7) is rotatably mounted on the inner wall of each through hole (6). The plurality of filter cartridges (7) are intermittently connected to the air intake pipe (2) in sequence. One end of the filter cartridge (7) is a closed structure. A plurality of filter holes (15) are evenly penetrated through the outer circumference of the filter cartridge (7), and a cleaning mechanism is mounted inside the filter cartridge (7).

2. The powder filtering equipment for aerosol powder making according to claim 1, characterized in that: The cleaning mechanism comprises a guide rod (8) inserted through the closed end of the filter cartridge (7), a push plate (9) being fixedly mounted on one end of the guide rod (8), the push plate (9) being slidably mounted on the inner wall of the filter cartridge (7), a limit ring (10) being fixedly mounted on the other end of the guide rod (8), a pushing component for pushing the push plate (9) to move being mounted inside the filter box (1), and a reset component being mounted on the outer surface of the guide rod (8).

3. The powder filtering equipment for aerosol powder making according to claim 2, characterized in that: The pushing assembly comprises a fixing ring (16) fixedly mounted on the inner wall of the filter box (1) away from the air inlet pipe (2), and an arc-shaped boss (17) is fixedly mounted on the outer surface of the fixing ring (16) on the side close to the rotating disk (5), and both side edges of the arc-shaped boss (17) are inclined structures.

4. The powder filtering equipment for aerosol powder making according to claim 2, characterized in that: The reset assembly comprises a reset spring (11) sleeved on the outer surface of the guide rod (8), and the reset spring (11) is arranged between the limit ring (10) and the end of the closed end of the filter cartridge (7).

5. The powder filtering equipment for aerosol powder making according to claim 1, characterized in that: A dehydration mechanism is also installed between the filter cartridge (7) and the filter box (1), the dehydration mechanism comprising a transmission gear (12) fixedly installed on the outer periphery of the filter cartridge (7), a mounting ring (13) fixedly installed on the inner wall of the filter box (1) close to the rotating disk (5), an arc-shaped rack (14) fixedly installed on the inner wall of the mounting ring (13), and a plurality of transmission gears (12) installed on the outer periphery of the filter cartridge (7) intermittently mesh with the arc-shaped rack (14) for transmission.

6. The powder filtering equipment for aerosol powder making according to claim 1, characterized in that: The outer surface of the filter box (1) near the top thereof is provided with a discharge port (21), and the outer surface of the filter box (1) near the discharge port (21) is provided with a discharge hopper (24) that can move up and down, and the end of the discharge hopper (24) is slidably mounted on the outer surface of the filter box (1), and a sealing ring is embedded in the end of the discharge hopper (24) that contacts the filter box (1), and a connecting component is installed between the filter box (1) and the discharge hopper (24).

7. The powder filtering equipment for aerosol powder making according to claim 6, characterized in that: The connecting assembly comprises two fixed blocks (23) fixedly mounted on the outer surface of the filter box (1) near the discharge port (21), the two fixed blocks (23) being respectively arranged on both sides of the discharge hopper (24), a spring rod (22) being fixedly mounted on the bottom end of the fixed block (23), the telescopic end of the spring rod (22) being fixedly mounted on the outer surface of the discharge hopper (24), and a shaking assembly being installed between the support shaft (4) and the discharge hopper (24).

8. The powder filtering equipment for aerosol powder making according to claim 7, characterized in that: The shaking assembly comprises a connecting ring (19) fixedly mounted on the outer surface of one end of the support shaft (4) close to the discharge hopper (24), a plurality of arc-shaped protrusions (20) being evenly fixedly mounted on the outer periphery of the connecting ring (19), and the bottom of the discharge hopper (24) abuts against the outer periphery of the connecting ring (19).

9. The powder filtering equipment for aerosol powder making according to claim 1, characterized in that: A stepper motor (18) is fixedly mounted on the outer surface of the filter box (1) at a side away from the air intake pipe (2), and an output end of the stepper motor (18) is fixedly mounted to the rotation center of the support shaft (4).

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