A NdFeB ultrafine powder pretreatment device

Abstract

The present invention discloses a pretreatment device for NdFeB ultrafine powder, which mainly solves the problems of long cycle and high labor intensity of workers in the existing NdFeB fine powder from collection to combustion treatment. It includes: an atomization bin, a water storage bin, a water accumulation bin, a lower water bin and a combustion bin. The front part of the atomization bin is provided with an air inlet, and the rear part of the atomization bin is provided with an exhaust fan, which is used to extract the air in the atomization bin. The atomization bin has a filter screen and a sprayer. The inner top surface of the atomization bin is provided with a clamping block, and the filter screen is connected to the bottom of the clamping block; the sprayer is arranged on the inner top surface of the atomization bin; the water storage bin is arranged above the atomization bin; the water accumulation bin is arranged at the rear and lower part of the atomization bin; the lower water bin is arranged at the rear and lower part of the atomization bin, and the lower water bin has a magnetic adsorption plate, a push rod, a water outlet and a receiving plate, and the magnetic adsorption plate is arranged obliquely downward in the lower water bin; the combustion bin is arranged at the front and lower part of the atomization bin. The present invention has the advantages of fast processing, reduced labor intensity of workers, and high processing efficiency.

Description

Technical Field

[0001] The invention relates to the field of NdFeB roasting technology, and in particular to a NdFeB ultrafine powder pretreatment device. Background Art

[0002] NdFeB magnetic material, known as the "king of magnets" due to its excellent magnetic properties, is widely used in many fields. However, in the production process of NdFeB magnets, NdFeB ultrafine powder waste is generated, and the proportion of ultrafine powder accounts for more than 1% of the output. In order to save resources and improve the comprehensive utilization rate of waste resources, the recycling of NdFeB ultrafine powder has important practical significance and broad prospects.

[0003] In the current technology, some powder particles with smaller particle sizes will be produced during the production and processing of NdFeB products. In the industry, such powders with a particle size smaller than the set value are called NdFeB ultrafine powders. When these NdFeB ultrafine powders are scrapped, due to their small particle size, they have a large contact area with the air. When the NdFeB ultrafine powders are concentratedly exposed to the air, they can spontaneously combust or even explode. The current method of collecting NdFeB fine powders is to use air isolation method for closed collection, store them in sealed containers, and then transfer them to special combustion equipment for manual combustion treatment to recycle the rare earth elements in NdFeB. However, the whole process is long, the workers have high labor intensity, and they must always be careful in handling fine powders and highly concentrated on handling them. Summary of the invention

[0004] The present invention aims to provide a NdFeB ultrafine powder pretreatment device to solve the problems of long period from collection to combustion treatment of the existing NdFeB fine powder and high labor intensity of workers.

[0005] To achieve the above objectives, the embodiment of the present invention adopts the following scheme:

[0006] A pretreatment device for ultrafine NdFeB powder, characterized by comprising:

[0007] Atomizing bin, the front of which is provided with an air inlet, the rear of which is provided with an exhaust fan, the exhaust fan is used to extract the air in the atomizing bin, the atomizing bin has

[0008] A filter screen, wherein a clamping block is provided on the inner top surface of the atomization bin, the filter screen is connected below the clamping block, and the filter screen is arranged obliquely;

[0009] A sprayer, the sprayer is arranged on the inner top surface of the atomization bin and is located above the filter screen, and the sprayer is used to spray water mist downwards;

[0010] A water storage tank, the water storage tank is arranged above the atomization tank, water is stored in the water storage tank, and the water in the water storage tank is connected to the sprayer;

[0011] A water storage bin, which is arranged at the rear and lower part of the atomization bin and can collect fog water;

[0012] The lower water tank is arranged at the rear and lower part of the atomization tank and in front of the water storage tank. The lower water tank has

[0013] A magnetic adsorption plate, the magnetic adsorption plate is arranged obliquely downward in the lower water bin, and the magnetic adsorption plate is used to adsorb fine powder particles;

[0014] A push rod, which is arranged at the rear of the lower water bin and is used to push out the fine powder particles on the magnetic adsorption plate;

[0015] A water outlet, the water outlet being arranged at the lower bottom of the lower water tank;

[0016] A receiving tray, which is arranged at the front of the lower water bin and is used to receive fine powder particles;

[0017] A combustion chamber is arranged in the front and lower part of the atomization chamber, and fine powder particles can be burned in the combustion chamber.

[0018] A second mounting part is provided in the combustion chamber, in which a driving wheel, a first pulley and a second pulley are provided, the first pulley and the second pulley are arranged at the left and right upper ends of the second mounting part, the driving wheel is arranged at the middle lower end of the second mounting part, a front plate and a rear plate are provided at the right and left ends of the second mounting part, a first pull rope is connected to the rear plate, the first pull rope is wound around the first pulley to connect to the driving wheel, a second pull rope is connected to the front plate, the second pull rope is wound around the second pulley to connect to the driving wheel, a cooling part is provided between the front plate and the rear plate, a cooling machine is provided on one side of the cooling part for cooling the receiving tray.

[0019] Preferably, a cotton roller is further provided in the atomization bin, and the cotton roller is located behind the filter screen. A water outlet is provided below the filter screen, and the inner bottom surface of the atomization bin is an inclined surface, so that the mist water can flow backward from the water outlet.

[0020] Preferably, a water blocking plate is provided in front of the water storage tank, two symmetrical gear rods are fixedly provided at the rear of the water blocking plate, a first mounting portion is provided in front of the water blocking plate, a motor is provided in the first mounting portion, a first gear is provided at the transmission end of the motor, a second gear is provided on one side of the first gear, and the first gear and the second gear are meshed with the gear rod. The water blocking plate is only lifted a short distance to facilitate the slow outflow of the accumulated mist water. If the water blocking plate is lifted too long, the mist water will flow out quickly, and the fine powder particles in the mist water will flow too fast to be attracted by the magnetic adsorption plate. Therefore, the function of the water blocking plate is to control the water flow rate.

[0021] Preferably, an inclined block is provided at the bottom of the magnetic adsorption plate, and the inclined block drags the magnetic adsorption plate to tilt downward. The magnetic adsorption plates are staggered front and back and are divided into a front row and a rear row. A third gear is connected to one side of the magnetic adsorption plate, and a belt is sleeved on the third gear connected to each row of magnetic adsorption plates. A pull rod is provided on the other side of the magnetic adsorption plate, and a slide groove is provided in the pull rod. The magnetic adsorption plate is connected to the slide groove, and the top of the pull rod is connected to the first telescopic cylinder. The mist water passes through the staggered magnetic adsorption plates, and the fine powder particles in the mist water are gradually adsorbed.

[0022] Preferably, a fixing frame is provided at the rear of the lower water bin, the pushing rod is placed on the fixing frame, and an oil cylinder is provided at the rear of the pushing rod, and the oil cylinder can drive the pushing rod to move forward and backward on the fixing frame.

[0023] Preferably, the front end of the push rod has

[0024] A butt head, which is in the shape of a long strip and is located on the front end of the push rod;

[0025] The scraper block is a triangular block, which is lower than the abutment head and is located below the front end of the push rod.

[0026] Preferably, a first push plate is provided in the front part of the lower water bin, and a second push plate is provided in the rear part of the lower water bin. The first push plate and the second push plate are horizontally aligned. Four pairs of the first push plate and the second push plate are arranged side by side. Four push rods are provided above and below, and the first push plate and the second push plate of each pair are aligned with each push rod.

[0027] Preferably, a curved rod is provided at the front of the first push plate, a plurality of curved guide rails are provided at the front of the lower water bin, the curved rod is connected to the curved guide rails, and springs are provided on the curved rod and the curved guide rails.

[0028] Preferably, a first support frame is provided at the bottom of the atomization bin, a first slider is provided in the first support frame, a first screw motor is provided at the front end of the first support frame, the first screw motor is used to drive the first slider to move, a second telescopic cylinder is provided in the first slider, and a scraper plate is provided at the lower end of the second telescopic cylinder.

[0029] Preferably, the scraper plate has

[0030] The scraper end is arranged at the rear end of the scraper plate; the scraper end is formed by bonding elastic soft plates, and is easy to bend but not easy to break when scraping fine powder particles on the hanging area scraper block.

[0031] The pull plate end is arranged at the front end of the scraper plate. The pull plate end is in a "┏" shape, and the pull plate end can not only push the receiving plate into the combustion chamber, but also pull the receiving plate out.

[0032] Preferably, a second support frame is provided at the front part of the lower water bin, a second slider is provided in the second support frame, a second screw motor is provided at the front end of the second support frame, the second screw motor is used to drive the second slider to move, a third telescopic cylinder is provided in the second slider, a tray is provided at the upper end of the third telescopic cylinder, and the receiving tray is arranged on the tray.

[0033] Preferably, a third support frame is provided in the rear portion of the combustion chamber, a third slider is provided in the third support frame, a third screw motor is provided at the rear end of the third support frame, the third screw motor is used to drive the third slider to move, a fourth telescopic cylinder is provided below the third slider, a pulling plate is provided at the upper end of the fourth telescopic cylinder, and the upper end of the pulling plate is hook-shaped for pulling out the receiving tray.

[0034] A method for using a NdFeB ultrafine powder pretreatment device, comprising:

[0035] To absorb fine powder particles, start the exhaust fan, put a dust suction sleeve in the air inlet, aim the dust suction sleeve at the fine powder produced by the processing and production to absorb it little by little, then turn on the sprayer, the sprayer sprays water, the mist water adheres to the filter screen and the cotton roller and flows downward, the fine powder enters the atomization bin and passes through the mesh in the filter screen, merges with the mist water, and then merges with the mist water flowing down from the cotton roller, so that the fine powder and the mist water flow from the inclined surface through the water outlet at the bottom of the filter screen to the water storage bin;

[0036] To scrape the fine powder particles, start the motor, the motor drives the first gear to rotate clockwise, transmit the second gear, and then mesh with the gear rod to transmit, so that the water blocking plate rises, and the water accumulated in the water storage bin slowly flows into the lower water storage bin, and the water passes through the magnetic adsorption plates staggered on the left and right in the lower water storage bin, so that the fine powder particles in the water are adsorbed on them. After the water in the water storage bin is drained, all the fine powder particles are adsorbed on the magnetic adsorption plates, and the first telescopic cylinder is started to raise the pull rod, driving the magnetic adsorption plate to flip upward until the magnetic adsorption plate rotates to a horizontal position, and then the oil cylinder is started, and the oil cylinder pushes the push rod forward, and the push rod enters the lower water storage bin through the second push plate, and the scraper block in front of the push rod scrapes from the magnetic adsorption plate to scrape off the fine powder particles, and finally pushes them out through the first push plate.

[0037] Collect fine powder particles, start the first screw motor and the second telescopic cylinder, drive the first slider to move toward the push rod, and drive the scraping end at the rear end of the scraper plate to scrape off the fine powder particles scraped by the scraper block, start the second screw motor and the third telescopic cylinder, drive the second slider to move to the bottom of the push rod, and drive the receiving tray to approach the bottom of the push rod being scraped, so that the scraped fine powder particles can fall into the receiving tray;

[0038] During combustion treatment of fine powder particles, the receiving tray is transferred to the front plate, and the servo motor is started. The servo motor drives the driving wheel to rotate clockwise, so that the second pull rope pulls the front plate to lift up, and the receiving tray enters the cooling section under the push of the front end butt of the scraper plate. The servo motor then drives the driving wheel to rotate counterclockwise, so that the first pull rope pulls the rear plate to lift up, and the front plate is lowered. The third screw motor and the fourth telescopic cylinder are started to drive the pulling plate to push the receiving tray into the combustion chamber for combustion treatment. The fine powder particles after the combustion treatment will agglomerate into a ball, and the receiving tray enters the cooling section again under the pull of the pulling plate. The cooler arranged in the cooling section cools down the receiving tray, and finally it is pulled out under the pull of the front end butt of the scraper plate to complete the combustion treatment process of the fine powder particles.

[0039] Beneficial effects of the present invention:

[0040] The present invention relates to a pretreatment device for NdFeB ultrafine powder, which absorbs NdFeB fine powder in an atomization bin and fuses it with mist water, then adsorbs fine powder particles in the mist water through a magnetic adsorption plate, scrapes fine powder particles through a push rod, and scrapes fine powder particles from a scraper block through a scraper plate. The scraped fine powder particles fall on a receiving tray, and finally the receiving tray is sent to a combustion bin to carry out combustion treatment on the fine powder particles. The present invention obtains NdFeB fine powder that can be collected immediately, and then subjected to combustion treatment and recycling, thereby achieving the beneficial effects of rapid treatment, reduced labor intensity of workers, and high treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is an internal schematic diagram of the present invention.

[0042] Figure 2 It is a schematic diagram of the atomization bin in the present invention.

[0043] Figure 3 yes Figure 2 Partial schematic diagram at point A in the middle.

[0044] Figure 4 It is an internal schematic diagram of the lower water tank in the present invention.

[0045] Figure 5 It is a rear schematic diagram of the water blocking plate in the present invention.

[0046] Figure 6 It is an internal sectional view of the lower water tank in the present invention.

[0047] Figure 7 It is a schematic diagram of the components of the lower water tank in the present invention.

[0048] Figure 8 It is a schematic diagram of the front part of the combustion chamber in the present invention.

[0049] Fig. 9 It is a schematic diagram of a scraper plate in the present invention.

[0050] Fig.10 It is a cross-sectional view of the combustion chamber in the present invention.

[0051] Fig.11 It is a schematic diagram of the movement of the receiving tray in the present invention.

[0052] Fig.12 It is a schematic diagram of the movement of the receiving tray into the combustion chamber in the present invention.

[0053] 1. Atomization tank 2. Water storage tank 3. Water accumulation tank

[0054] 4. Exhaust fan 5. Lower water tank 6. Water outlet

[0055] 7. Combustion chamber 101, air inlet 102, clamping block

[0056] 103, filter screen 104, cotton roller 105, sprayer

[0057] 1001, inclined surface 1031, water passage 31, first mounting portion

[0058] 301, water blocking plate 302, push rod 303, oil cylinder

[0059] 304, fixed frame 3011, gear block 3101, motor

[0060] 3102, first gear 3103, second gear 3021, butt

[0061] 3022, scraper block 501, inclined block 502, magnetic adsorption plate

[0062] 503, first push plate 504, second push plate 505, pull rod

[0063] 506, first telescopic cylinder 507, belt 508, third gear

[0064] 5031, arc rod 5032, arc guide rail 5033, spring

[0065] 5051, slide 71, first support frame 72, second support frame

[0066] 73, second mounting portion 74, rear plate 75, front plate

[0067] 76, cooling unit 711, first slider 712, scraper

[0068] 713, first screw motor 714, second telescopic cylinder 721, second slide block

[0069] 722, receiving tray 723, second screw motor 724, third telescopic cylinder

[0070] 731, first pulley 732, second pulley 733, first pull rope

[0071] 734, second pull rope 735, driving wheel 761, pull plate

[0072] 762, third slider 763, third support frame 764, third lead screw motor

[0073] 765, fourth telescopic cylinder 7121, scraper end 7122, pull plate end DETAILED DESCRIPTION

[0074] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0075] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0076] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] For the purpose of simplicity and illustration, the principles of the embodiments are described mainly by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious. For those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments may be used in combination with each other.

[0078] like Figure 1-2As shown, the present invention is a pretreatment device for NdFeB ultrafine powder, characterized in that it includes: an atomization bin 1, a water storage bin 2, a water accumulation bin 3, a water discharge bin 5 and a combustion bin 7. The front part of the atomization bin 1 is provided with an air inlet 101, and the rear part of the atomization bin 1 is provided with an exhaust fan 4, and the exhaust fan 4 is used to extract the air in the atomization bin 1. The atomization bin 1 has a filter screen 103 and a sprayer 105. The inner top surface of the atomization bin 1 is provided with a clamping block 102, and the filter screen 103 is connected to the bottom of the clamping block 102, and the filter screen 103 is arranged obliquely; the sprayer 105 is arranged on the inner top surface of the atomization bin 1 and is located above the filter screen 103, and the sprayer 105 is used to spray water mist downward; the water storage bin 2 is arranged above the atomization bin 1, and water is stored in the water storage bin 2, and the water in the water storage bin 2 and the sprayer The device 105 is connected; the water storage bin 3 is arranged at the rear and lower part of the atomization bin 1, and the water storage bin 3 can collect fog water; the lower water bin 5 is arranged at the rear and lower part of the atomization bin 1, and is located in front of the water storage bin 3. The lower water bin 5 has a magnetic adsorption plate 502, a pushing rod 302, a water outlet 6 and a receiving tray 722. The magnetic adsorption plate 502 is arranged obliquely downward in the lower water bin 5, and the magnetic adsorption plate 502 is used to adsorb fine powder particles; the pushing rod 302 is arranged at the rear of the lower water bin 5, and the pushing rod 302 is used to push out the fine powder particles on the magnetic adsorption plate 502; the water outlet 6 is arranged at the lower bottom of the lower water bin 5; the receiving tray 722 is arranged at the front part of the lower water bin 5, and the receiving tray 722 is used to receive fine powder particles; the combustion bin 7 is arranged at the front and lower part of the atomization bin 1, and fine powder particles can be burned in the combustion bin 7.

[0079] like Fig.10 As shown, the combustion chamber 7 has a second mounting portion 73, and a driving wheel 735, a first pulley 731 and a second pulley 732 are provided in the second mounting portion 73. The first pulley 731 and the second pulley 732 are arranged at the left and right upper ends of the second mounting portion 73, and the driving wheel 735 is arranged at the middle lower end of the second mounting portion 73. The right and left ends of the second mounting portion 73 are provided with a front plate 75 and a rear plate 74, and the rear plate 74 is connected to a first pull rope 733, and the first pull rope 733 is wound around the first pulley 731 to connect to the driving wheel 735. The front plate 75 is connected to a second pull rope 734, and the second pull rope 734 is wound around the second pulley 732 to connect to the driving wheel 735. A cooling portion 76 is provided between the front plate 75 and the rear plate 74, and a cooler is provided on one side of the cooling portion 76 for cooling the receiving tray 722.

[0080] Specifically, Figure 2 As shown, a cotton roller 104 is further provided in the atomizing bin 1, and the cotton roller 104 is located behind the filter screen 103. A water inlet 1031 is provided below the filter screen 103, and the inner bottom surface of the atomizing bin 1 is an inclined surface 1001, through which the mist water can flow backwards.

[0081] Specifically, Figure 4-5As shown, a water blocking plate 301 is provided in front of the water storage tank 2, two symmetrical gear rods are fixedly provided at the rear of the water blocking plate 301, a first mounting portion 31 is provided in front of the water blocking plate 301, a motor 3101 is provided in the first mounting portion 31, a first gear 3102 is provided at the transmission end of the motor 3101, a second gear 3103 is provided on one side of the first gear 3102, and the first gear 3102 and the second gear 3103 are meshed with the gear rod. The water blocking plate 301 is only lifted a short distance to facilitate the accumulated mist water to flow out slowly. If the water blocking plate 301 is lifted too long, the mist water will flow out quickly, and the fine powder particles in the mist water will flow too fast to be attracted by the magnetic adsorption plate 502, so the function of the water blocking plate 301 is to control the water flow rate.

[0082] Specifically, Figure 6 As shown, a slanted block 501 is provided at the bottom of the magnetic adsorption plate 502, and the slanted block 501 drags the magnetic adsorption plate 502 to tilt downward. The magnetic adsorption plates 502 are staggered front and back, and are divided into a front row and a rear row. A third gear 508 is connected to one side of the magnetic adsorption plate 502, and a belt 507 is sleeved on the third gear 508 connected to each row of magnetic adsorption plates 502. A pull rod 505 is provided on the other side of the magnetic adsorption plate 502, and a slide groove 5051 is provided in the pull rod 505. The magnetic adsorption plate 502 is connected to the slide groove 5051, and the top of the pull rod 505 is connected to the first telescopic cylinder 506. The mist water passes through the staggered magnetic adsorption plates 502, and the fine powder particles in the mist water are gradually adsorbed.

[0083] Specifically, a fixing frame 304 is provided at the rear of the lower water tank 5 , and the push rod 302 is placed on the fixing frame 304 . A cylinder 303 is provided at the rear of the push rod 302 , and the cylinder 303 can drive the push rod 302 to move forward and backward on the fixing frame 304 .

[0084] Specifically, Fig. 9 As shown, the front end of the push rod 302 has a butt 3021 and a scraper block 3022 . The butt 3021 is in the shape of an elongated strip and is located on the front end of the push rod 302 ; the scraper block 3022 is in the shape of a triangle and is lower than the butt 3021 and is located below the front end of the push rod 302 .

[0085] Specifically, Figure 6 As shown, a first push plate 503 is provided in the front part of the lower water bin 5, and a second push plate 504 is provided in the rear part of the lower water bin 5. The first push plate 503 and the second push plate 504 are horizontally aligned. Four pairs of the first push plates 503 and the second push plates 504 are arranged side by side. Four push rods 302 are provided above and below. The first push plates 503 and the second push plates 504 of each pair are aligned with each push rod 302.

[0086] Specifically, a curved rod 5031 is provided at the front of the first push plate 503 , a plurality of curved guide rails 5032 are provided at the front of the lower water tank 5 , the curved rod 5031 connects the curved guide rails 5032 , and springs 5033 are provided on the curved rod 5031 and the curved guide rails 5032 .

[0087] Specifically, Figure 8 As shown, a first support frame 71 is provided at the bottom of the atomization bin 1, a first slider 711 is provided in the first support frame 71, a first screw motor 713 is provided at the front end of the first support frame 71, the first screw motor 713 is used to drive the first slider 711 to move, a second telescopic cylinder 714 is provided in the first slider 711, and a scraper plate 712 is provided at the lower end of the second telescopic cylinder 714.

[0088] Specifically, the scraper plate 712 has a scraper end 7121 and a pull plate end 7122. The scraper end 7121 is arranged at the rear end of the scraper plate 712. The scraper end 7121 is made of elastic soft plates bonded together, and is easy to bend but not easy to break when scraping fine powder particles on the hanging area block 3022. The pull plate end 7122 is arranged at the front end of the scraper plate 712. The pull plate end 7122 is in a "┏" shape, and the pull plate end 7122 can not only push the receiving plate 722 into the combustion chamber 7, but also pull the receiving plate 722 out.

[0089] Specifically, a second support frame 72 is provided at the front part of the lower water bin 5, a second slider 721 is provided in the second support frame 72, a second screw motor 723 is provided at the front end of the second support frame 72, the second screw motor 723 is used to drive the second slider 721 to move, a third telescopic cylinder 724 is provided in the second slider 721, a tray is provided at the upper end of the third telescopic cylinder 724, and a receiving tray 722 is arranged on the tray.

[0090] Specifically, a third support frame 763 is provided in the rear part of the combustion chamber 7, a third slider 762 is provided in the third support frame 763, a third screw motor 764 is provided at the rear end of the third support frame 763, the third screw motor 764 is used to drive the third slider 762 to move, a fourth telescopic cylinder 765 is provided below the third slider 762, a pulling plate 761 is provided at the upper end of the fourth telescopic cylinder 765, and the upper end of the pulling plate 761 is hook-shaped for pulling out the receiving tray 722.

[0091] A method for using a NdFeB ultrafine powder pretreatment device, comprising:

[0092] To absorb fine powder particles, start the exhaust fan 4, put a dust suction sleeve in the air inlet 101, aim the dust suction sleeve at the fine powder produced by the processing and production to absorb it little by little, then turn on the sprayer 105, spray the sprayer 105 to spray water, the mist water adheres to the filter screen 103 and the cotton roller 104 and flows downward, the fine powder enters the atomization bin 1 and passes through the mesh in the filter screen 103, merges with the mist water, and then merges with the mist water flowing down from the cotton roller 104, so that the fine powder and the mist water flow from the inclined surface 1001 through the water outlet 1031 at the bottom of the filter screen 103 to the water storage bin 3;

[0093] To scrape the fine powder particles, start the motor 3101, the motor 3101 drives the first gear 3102 to rotate clockwise, transmits the second gear 3103, and then meshes with the gear rod to transmit, so that the water blocking plate 301 rises, and the water accumulated in the water storage tank 3 slowly flows into the lower water storage tank 5. The water passes through the magnetic adsorption plates 502 staggered on the left and right in the lower water storage tank 5, so that the fine powder particles in the water are adsorbed on them. After the water in the water storage tank 3 is drained, all the fine powder particles are adsorbed on the magnetic adsorption plates 502. On the top, start the first telescopic cylinder 506, raise the pull rod 505, drive the magnetic adsorption plate 502 to flip upward, until the magnetic adsorption plate 502 rotates to a horizontal position, and then start the oil cylinder 303, the oil cylinder 303 pushes the push rod 302 forward, the push rod 302 enters the lower water bin 5 through the second push plate 504, the scraper block 3022 in front of the push rod 302 scrapes from the magnetic adsorption plate 502, scrapes off the fine powder particles, and finally pushes them out through the first push plate 503.

[0094] Collect fine powder particles, start the first screw motor 713 and the second telescopic cylinder 714, drive the first slider 711 to move toward the push rod 302, and drive the scraping end 7121 at the rear end of the scraper plate 712 to scrape off the fine powder particles scraped by the scraper block 3022, start the second screw motor 723 and the third telescopic cylinder 724, drive the second slider 721 to move to the bottom of the push rod 302, and drive the receiving tray 722 to approach the bottom of the push rod 302 being scraped, so that the scraped fine powder particles can fall into the receiving tray 722;

[0095] The fine powder particles are burned and processed, and the receiving tray 722 is transferred to the front plate 75. The servo motor 3101 is started, and the servo motor 3101 drives the driving wheel 735 to rotate clockwise, so that the second pull rope 734 pulls the front plate 75 to lift up, and the receiving tray 722 is pushed by the front end of the scraper plate 712 to enter the cooling part 76. The servo motor 3101 then drives the driving wheel 735 to rotate counterclockwise, so that the first pull rope 733 pulls the rear plate 74 to lift up, and the front plate 75 is lowered. , start the third screw motor 764 and the fourth telescopic cylinder 765, drive the pulling plate 761 to push the receiving plate 722 into the combustion chamber 7 for combustion treatment; the fine powder particles after the combustion treatment will agglomerate, and the receiving plate 722 enters the cooling part 76 again under the pull of the pulling plate 761, and the cooling machine arranged in the cooling part 76 cools down the receiving plate 722, and finally it is pulled out under the pull of the front end head 3021 of the scraper plate 712, completing the combustion treatment process of the fine powder particles.

[0096] Although the above describes the illustrative specific embodiments of the present invention so that those skilled in the art can understand the present invention, the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, all inventions and creations using the concepts of the present invention are protected.

Claims

1. A pretreatment device for ultrafine NdFeB powder, characterized in that: include: Atomizing bin, the front of which is provided with an air inlet, the rear of which is provided with an exhaust fan, the exhaust fan is used to extract the air in the atomizing bin, the atomizing bin has A filter screen, wherein a clamping block is provided on the inner top surface of the atomization bin, the filter screen is connected below the clamping block, and the filter screen is arranged obliquely; A sprayer, the sprayer is arranged on the inner top surface of the atomization bin and is located above the filter screen, and the sprayer is used to spray water mist downwards; A water storage tank, the water storage tank is arranged above the atomization tank, water is stored in the water storage tank, and the water in the water storage tank is connected to the sprayer; A water storage bin, which is arranged at the rear and lower part of the atomization bin and can collect fog water; The lower water tank is arranged at the rear and lower part of the atomization tank and in front of the water storage tank. The lower water tank has A magnetic adsorption plate, the magnetic adsorption plate is arranged obliquely downward in the lower water bin, and the magnetic adsorption plate is used to adsorb fine powder particles; A push rod, which is arranged at the rear of the lower water bin and is used to push out the fine powder particles on the magnetic adsorption plate; A water outlet, the water outlet being arranged at the lower bottom of the lower water tank; A receiving tray, which is arranged at the front of the lower water bin and is used to receive fine powder particles; A combustion chamber, which is arranged in front of and below the atomization chamber, and in which fine powder particles can be burned; A cotton roller is also provided in the atomizing bin, and the cotton roller is located behind the filter screen. A water inlet is provided below the filter screen, and the inner bottom surface of the atomizing bin is an inclined surface, so that the mist water can flow backward from the water inlet. A water blocking plate is provided in front of the water storage tank, two symmetrical gear rods are fixedly provided at the rear of the water blocking plate, a first mounting portion is provided in front of the water blocking plate, a motor is provided in the first mounting portion, a first gear is provided at the transmission end of the motor, a second gear is provided on one side of the first gear, and the first gear and the second gear are meshed with each other and meshed with the gear rod; An inclined block is provided at the bottom of the magnetic adsorption plate, and the inclined block drags the magnetic adsorption plate to tilt downward. The magnetic adsorption plates are staggered front and back and are divided into a front row and a rear row. A third gear is connected to one side of the magnetic adsorption plate, and a belt is sleeved on the third gear connected to each row of magnetic adsorption plates. A pull rod is provided on the other side of the magnetic adsorption plate, and a slide groove is provided in the pull rod. The magnetic adsorption plate is connected to the slide groove, and the top of the pull rod is connected to the first telescopic cylinder; A second mounting part is provided in the combustion chamber, in which a driving wheel, a first pulley and a second pulley are provided, the first pulley and the second pulley are arranged at the left and right upper ends of the second mounting part, the driving wheel is arranged at the middle lower end of the second mounting part, a front plate and a rear plate are provided at the right and left ends of the second mounting part, a first pull rope is connected to the rear plate, the first pull rope is wound around the first pulley and connected to the driving wheel, a second pull rope is connected to the front plate, the second pull rope is wound around the second pulley and connected to the driving wheel, a cooling part is provided between the front plate and the rear plate, a cooling machine is provided on one side of the cooling part for cooling the receiving tray.

2. A NdFeB ultrafine powder pretreatment device according to claim 1, wherein: A fixing frame is arranged at the rear of the lower water bin, the pushing rod is placed on the fixing frame, and an oil cylinder is arranged at the rear of the pushing rod, and the oil cylinder can drive the pushing rod to move forward and backward on the fixing frame.

3. A NdFeB ultrafine powder pretreatment device according to claim 1, wherein: The front end of the push rod has A butt head, which is in the shape of a long strip and is located on the front end of the push rod; The scraper block is a triangular block, which is lower than the abutment head and is located below the front end of the push rod.

4. A NdFeB ultrafine powder pretreatment device according to claim 1, wherein: A first push plate is provided in the front part of the lower water bin, and a second push plate is provided in the rear part of the lower water bin. The first push plate and the second push plate are horizontally aligned. Four pairs of the first push plate and the second push plate are arranged side by side. Four push rods are provided above and below, and the first push plate and the second push plate of each pair are aligned with each push rod.

5. A pretreatment device for NdFeB ultrafine powder according to claim 4, wherein: The front part of the first push plate is provided with an arc rod, the front part of the lower water tank is provided with a plurality of arc guide rails, the arc rod is connected to the arc guide rails, and springs are provided on the arc rod and the arc guide rails.

6. A NdFeB ultrafine powder pretreatment device according to claim 1, wherein: A first support frame is provided at the bottom of the atomization bin, a first slider is provided in the first support frame, a first screw motor is provided at the front end of the first support frame, the first screw motor is used to drive the first slider to move, a second telescopic cylinder is provided in the first slider, and a scraper plate is provided at the lower end of the second telescopic cylinder.

7. A method for using the NdFeB ultrafine powder pretreatment device as claimed in claim 1, comprising: To absorb fine powder particles, start the exhaust fan, put a dust suction sleeve in the air inlet, aim the dust suction sleeve at the fine powder produced by the processing and production to absorb it little by little, then turn on the sprayer, the sprayer sprays water, the mist water adheres to the filter screen and the cotton roller and flows downward, the fine powder enters the atomization bin and passes through the mesh in the filter screen, merges with the mist water, and then merges with the mist water flowing down from the cotton roller, so that the fine powder and the mist water flow from the inclined surface through the water outlet at the bottom of the filter screen to the water storage bin; To scrape the fine powder particles, start the motor, the motor drives the first gear to rotate clockwise, transmit the second gear, and then mesh with the gear rod to transmit, so that the water blocking plate rises, and the water accumulated in the water storage bin slowly flows into the lower water storage bin, and the water passes through the magnetic adsorption plates staggered on the left and right in the lower water storage bin, so that the fine powder particles in the water are adsorbed on them. After the water in the water storage bin is drained, all the fine powder particles are adsorbed on the magnetic adsorption plates, and the first telescopic cylinder is started to raise the pull rod, driving the magnetic adsorption plate to flip upward until the magnetic adsorption plate rotates to a horizontal position, and then the oil cylinder is started, and the oil cylinder pushes the push rod forward, and the push rod enters the lower water storage bin through the second push plate, and the scraper block in front of the push rod scrapes from the magnetic adsorption plate to scrape off the fine powder particles, and finally pushes them out through the first push plate; Collect fine powder particles, start the first screw motor and the second telescopic cylinder, drive the first slider to move toward the push rod, and drive the scraping end at the rear end of the scraper plate to scrape off the fine powder particles scraped by the scraper block, start the second screw motor and the third telescopic cylinder, drive the second slider to move to the bottom of the push rod, and drive the receiving tray to approach the bottom of the push rod being scraped, so that the scraped fine powder particles can fall into the receiving tray; To burn and process fine powder particles, the receiving tray is transferred to the front plate, and the servo motor is started. The servo motor drives the driving wheel to rotate clockwise, so that the second pull rope pulls the front plate to lift up, and the receiving tray enters the cooling section under the push of the front end butt of the scraper plate. The servo motor then drives the driving wheel to rotate counterclockwise, so that the first pull rope pulls up the rear plate, and the front plate is lowered. The third screw motor and the fourth telescopic cylinder are started to drive the pulling plate to push the receiving tray into the combustion chamber for combustion processing; the fine powder particles after the combustion processing will agglomerate, and the receiving tray enters the cooling section again under the pull of the pulling plate, and the cooler arranged in the cooling section cools down the receiving tray, and finally it is pulled out under the pull of the front end butt of the scraper plate to complete the combustion processing process of fine powder particles.

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