A rapid dehydration device for wet powder

Abstract

This utility model discloses a rapid dehydration device for wet powder, relating to the field of metal powder dehydration technology, aiming to facilitate large-scale dehydration of metal powder and improve production efficiency. In this rapid dehydration device, the fixed frame, waterproof wall, and the cooperative structure of the tray and filter barrel together lay the foundation for stable operation. The fixed frame, through the cooperation of the fixing ring, support ring, and connecting rod, securely limits the fixed cylinder, preventing it from shaking during high-speed operation; the anti-slip pads at the bottom of the support legs further enhance overall stability, preventing equipment displacement due to centrifugal force and ensuring a stable posture during continuous production. The waterproof wall at the bottom of the fixed cylinder surrounds the mounting hole, preventing water from seeping into the motor, avoiding short circuits or corrosion, and extending its service life. The tray is fixed to the motor drive shaft via a coupling, and combined with the support of the waterproof wall, reduces malfunctions caused by component shaking. The device is suitable for long-term continuous large-scale production, reducing maintenance frequency and costs, and ensuring continuous operation of the production line.

Description

Technical Field

[0001] This utility model relates to the field of metal powder dehydration technology, and in particular to a rapid dehydration device for wet powder. Background Technology

[0002] In the fields of metal processing and powder engineering, the preparation and processing technology of metal powders directly determines the performance and quality of downstream products. Among them, wet ball milling is a key process for refining metal powders, improving particle morphology, and enhancing purity. This process effectively processes bulk or coarse-grained metal raw materials into micron- or even nano-sized powders through the impact and grinding action of the ball milling media and the metal raw materials in a liquid environment. It is widely used in high-end manufacturing fields such as powder metallurgy, 3D printing, and cemented carbide. However, after wet ball milling, the metal powder remains in a solid-liquid mixture with a high moisture content, making it unsuitable for direct entry into subsequent drying, forming, or sintering processes. Therefore, dehydration is a crucial step connecting wet ball milling with downstream processes, and its efficiency and effectiveness directly impact the entire production line's capacity, energy consumption, and product yield. The industry commonly uses ordinary filtration to dehydrate the metal powder after wet ball milling. However, this method is inefficient and ineffective, impacting production efficiency for large-scale production.

[0003] Therefore, to address the dehydration requirements of wet ball milling of metal powders, it is necessary to design a dehydration device that combines the advantages of centrifugal separation technology. Utility Model Content

[0004] To address the above shortcomings, this utility model provides a rapid dehydration device for wet powder, which facilitates the dehydration of large quantities of metal powder and improves production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rapid dehydration device for wet powder includes a fixed cylinder, a fixed frame, a motor, a tray, and a filter barrel. The fixed cylinder is installed inside the fixed frame. The lower part of the fixed cylinder is funnel-shaped, with a drain outlet on the bottom side and a mounting hole in the center of the bottom. A waterproof wall extending into the fixed cylinder is provided around the mounting hole. The motor is fixedly installed at the lower part of the fixed cylinder, and its drive shaft passes through the mounting hole. The tray is movably installed on the upper side of the waterproof wall, and its lower part is fixedly connected to the drive shaft of the motor through a coupling. The filter barrel is limited and installed inside the tray.

[0006] Preferably, the fixing frame includes a fixing ring, a support ring, connecting rods, and legs. There are multiple connecting rods that are circumferentially connected to the fixing ring and the support ring. There are multiple legs that are correspondingly fixed to the multiple connecting rods. The fixing cylinder is limited and installed inside the fixing ring and supported by the support ring.

[0007] Preferably, it also includes a second cover plate, on which a plurality of second limiting blocks are evenly arranged in the circumference, and a plurality of first limiting grooves are evenly arranged in the circumference of the upper part of the filter barrel. The second cover plate is detachably installed on the upper part of the filter barrel through the second limiting blocks, and a second pull ring is also provided on the upper part of the second cover plate.

[0008] Preferably, the tray is provided with an installation groove, and multiple second limiting grooves are evenly arranged around the installation groove. The bottom of the filter bucket is provided with multiple first limiting blocks that match the second limiting grooves. The filter bucket cooperates with the installation groove in the tray through the first limiting blocks.

[0009] Preferably, multiple filter holes are evenly distributed on the wall of the filter barrel.

[0010] Preferably, it also includes a limiting support frame, which includes a limiting ring, a mounting ring, support rods, and rollers. The mounting ring and the limiting ring are integrally formed. The outer diameter of the mounting ring is smaller than the inner diameter of the fixed cylinder, and the outer diameter of the limiting ring is larger than the outer diameter of the fixed cylinder. The mounting ring is detachably installed inside the fixed cylinder. There are multiple support rods that are evenly arranged circumferentially on the inner wall of the mounting ring. There are multiple rollers that are installed laterally at the tails of the multiple support rods. The rollers abut against the filter barrel.

[0011] Preferably, the fixing frame includes anti-slip pads, and there are multiple anti-slip pads installed on the bottom of multiple support legs.

[0012] Preferably, it also includes a first cover plate, which is detachably embedded in the upper part of the limiting support frame, and a first pull ring is provided on the upper part of the first cover plate.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: the support and limiting of the fixed cylinder by the fixed frame, the protection of the motor by the waterproof wall, and the cooperative structure of the tray and filter barrel together form the foundation for the stable operation of the device. The fixed frame, through the coordinated action of the fixed ring, support ring, and connecting rod, firmly limits the position of the fixed cylinder, preventing it from shaking during high-speed operation. The anti-slip pads at the bottom of the support legs further enhance the overall stability of the device, preventing displacement due to centrifugal force and ensuring the device maintains a stable posture during continuous production. Simultaneously, the waterproof wall at the bottom of the fixed cylinder, surrounding the mounting hole, effectively prevents water from seeping into the motor, avoiding short circuits or corrosion damage and extending the motor's service life. The tray and motor drive shaft are fixed together by a coupling, and with the support of the waterproof wall, ensure the coaxiality and stability of the tray during rotation, thereby driving the filter barrel to operate stably and reducing equipment failures caused by component shaking. This structurally stable design enables the device to adapt to long-term, continuous, high-volume production scenarios, reducing equipment maintenance frequency and costs, and ensuring continuous operation of the production line. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the fixing cylinder in this utility model; Figure 4 This is a schematic diagram of the overall structure of the fixing frame in this utility model; Figure 5 This is a schematic diagram of the overall structure of the limiting support frame in this utility model; Figure 6 This is an exploded view of the internal structure of this utility model.

[0016] Reference numerals: 1. Fixed cylinder; 101. Drain outlet; 102. Waterproof wall; 103. Mounting hole; 2. Fixed frame; 201. Fixed ring; 202. Support ring; 203. Support leg; 204. Anti-slip pad; 205. Connecting rod; 3. Motor; 4. Limiting support frame; 401. Limiting ring; 402. Mounting ring; 403. Support rod; 404. Roller; 5. First cover plate; 501. First pull ring; 6. Filter barrel; 601. First limiting groove; 602. First limiting block; 7. Tray; 701. Mounting groove; 702. Second limiting groove; 8. Second cover plate; 801. Second limiting block; 802. Second pull ring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] This embodiment provides a rapid dehydration device for wet powder, used to solve the problem of efficient dehydration of metal powder after wet ball milling, such as... Figures 1-6 As shown, the device includes a fixed cylinder 1, a fixed frame 2, a motor 3, a tray 7, and a filter barrel 6; The mounting bracket 2 includes a fixing ring 201, a support ring 202, connecting rods 205, support legs 203, and an anti-slip pad 204. Four connecting rods 205 are arranged circumferentially, with the upper end of each rod welded to the outer circumferential wall of the fixing ring 201 and the lower end welded to the outer circumferential wall of the support ring 202. These four connecting rods provide vertical support and positional fixation between the fixing ring 201 and the support ring 202, ensuring they are coaxial. Four support legs 203 are welded to the middle of the four connecting rods 205, and each leg extends downwards perpendicular to the ground. An anti-slip pad 204 is detachably installed at the bottom of each outrigger 203 by bolts. The anti-slip pad 204 is made of nitrile rubber and has a diamond-shaped anti-slip pattern on its lower surface. The function of the anti-slip pad 204 is to increase the friction between the outrigger 203 and the ground, prevent the device from shifting during operation, and buffer the vibration generated during the operation of the equipment to reduce the impact on the ground. The fixed cylinder 1, serving as the main housing structure of the device, is cylindrical in shape, tapering towards the center from the bottom to form a funnel shape. This funnel shape facilitates the rapid collection and discharge of liquid separated during dehydration. The outer diameter of the fixed cylinder 1 matches the inner diameter of the fixing ring 201 in the fixing frame 2. The fixed cylinder 1 is inserted and installed from above the fixing ring 201, with its lower outer circumferential wall fitting against the inner circumferential wall of the support ring 202. The support ring 202 provides bottom support for the fixed cylinder 1, while the fixing ring 201 provides radial restraint to the upper part of the fixed cylinder 1, ensuring its stability and coaxial arrangement within the fixing frame 2. A cylindrical drain outlet 101 is welded to the side of the bottom of the fixed cylinder 1, at the lowest point of the funnel shape. The outer circumferential wall of the drain outlet 101 has external threads for connecting a drain pipe, guiding the liquid separated during dehydration to a designated collection container and preventing uncontrolled liquid flow. A circular mounting hole 103 is provided at the center of the bottom of the fixed cylinder 1. The diameter of the mounting hole 103 matches the diameter of the drive shaft of the motor 3 for the drive shaft of the motor 3 to pass through. On the periphery of the mounting hole 103, that is, on the inner wall of the bottom of the fixed cylinder 1, an upwardly extending cylindrical waterproof wall 102 is integrally formed. The inner diameter is larger than the diameter of the mounting hole 103. The function of the waterproof wall 102 is to prevent the liquid separated during the dehydration process from seeping into the motor 3 through the mounting hole 103, thus protecting the motor 3 from liquid corrosion. Then, the drive component motor 3 is installed. The motor 3 is fixedly installed on the lower outer side of the fixed cylinder 1 by bolts, and the drive shaft of the motor 3 passes through the mounting hole 103 at the bottom of the fixed cylinder 1 in a vertical direction. The top end of the drive shaft extends into the interior of the fixed cylinder 1, and the extension length is adapted to the installation height of the subsequent tray 7. The function of the motor 3 is to provide power for the centrifugal dehydration of the device and drive the subsequent components to rotate at high speed through the drive shaft. The tray 7 is generally disc-shaped, with a diameter smaller than the inner diameter of the fixed cylinder 1. A coupling is welded to the lower center of the tray 7. The inner hole of the coupling is interference-fitted with the top of the drive shaft of the motor 3, thus fixing the tray 7 to the drive shaft of the motor 3, allowing the motor 3 to drive the tray 7 to rotate synchronously. The lower edge of the tray 7 contacts the upper side of the waterproof wall 102 at the bottom of the fixed cylinder 1. The waterproof wall 102 provides bottom support for the tray 7. At the same time, grease is applied between the lower surface of the tray 7 and the upper surface of the waterproof wall 102 to reduce the frictional resistance between the tray 7 and the waterproof wall 102 during rotation, ensuring that the tray 7 can rotate smoothly at high speed. The function of the tray 7 is to support the filter barrel 6 and drive the filter barrel 6 to rotate synchronously, providing rotational power for the centrifugal dewatering of the metal powder inside the filter barrel 6. Next, filter barrel 6 is installed. Filter barrel 6 has a cylindrical barrel structure, with a height less than that of fixed cylinder 1 and a diameter less than that of tray 7. Multiple filter holes are evenly distributed on the wall of filter barrel 6. It is used in conjunction with filter cloth. Specifically, the filter cloth is placed inside filter barrel 6, and then the metal powder is placed inside. This ensures that under centrifugal force, the metal powder can be trapped in the filter cloth, while the moisture can be discharged into fixed cylinder 1 through the filter holes. On the outer circumferential wall of the bottom of filter barrel 6, three first limiting blocks 602 are integrally formed and are evenly distributed circumferentially. Correspondingly, a circular mounting groove 701 is formed on the upper surface of tray 7. The diameter of mounting groove 701 matches the bottom diameter of filter barrel 6. On the inner wall of mounting groove 701, three second limiting grooves 702 that match the first limiting blocks 602 are formed. The three second limiting grooves 702 are also evenly distributed circumferentially. During installation, the bottom of the filter bucket 6 is embedded into the mounting groove 701 of the tray 7, and the three first limiting blocks 602 at the bottom of the filter bucket 6 are respectively engaged into the three second limiting grooves 702 on the inner wall of the mounting groove 701. Through the cooperation of the first limiting blocks 602 and the second limiting grooves 702, the filter bucket 6 is fixed on the tray 7, preventing the filter bucket 6 from sliding or shifting relative to the tray 7 during rotation, and ensuring that the filter bucket 6 can rotate synchronously and stably with the tray 7. The function of the filter bucket 6 is to contain the metal powder to be dehydrated and to achieve solid-liquid separation through the filter holes. To further ensure the stability of the filter cartridge 6 during rotation, a limiting support frame 4 is also installed. The limiting support frame 4 includes a limiting ring 401, a mounting ring 402, a support rod 403, and a roller 404. The mounting ring 402 and the limiting ring 401 are integrally formed. The mounting ring 402 is cylindrical, and its outer diameter is smaller than the inner diameter of the fixed cylinder 1. The limiting ring 401 is annular, and its outer diameter is larger than the outer diameter of the fixed cylinder 1. During installation, the mounting ring 402 is inserted into the fixed cylinder 1 from above, with the outer circumferential wall of the mounting ring 402 fitting against the inner circumferential wall of the fixed cylinder 1. The limiting ring 401 rests on the top edge of the fixed cylinder 1, thereby axially limiting the mounting ring 402 within the fixed cylinder 1 and preventing the mounting ring 402 from sliding downwards. Three support rods 403 are provided, and are uniformly welded circumferentially to the inner wall of the mounting ring 402. Each support rod 403 extends radially inward along the mounting ring 402, and the three support rods 403 are of the same length, ensuring that their ends converge to the same circumference. Three rollers 404 are provided, and are respectively mounted laterally to the ends of the three support rods 403 via pins. The rollers 404 can rotate freely around the pins, and the outer circumferential surfaces of the three rollers 404 abut against the outer circumferential wall of the filter barrel 6. When the filter barrel 6 rotates at high speed, the rollers 404 rotate synchronously with the filter barrel 6. The rollers 404 radially limit the filter barrel 6, preventing radial displacement or shaking due to centrifugal force during rotation, ensuring that the filter barrel 6 always maintains coaxial rotation, and further improving the stability of the device operation. To prevent liquid splashing during dehydration and to avoid external impurities entering the device, a first cover plate 5 and a second cover plate 8 are installed. The first cover plate 5 is a circular flat plate with a diameter matching the inner diameter of the mounting ring 402 in the limiting support frame 4. The first cover plate 5 is embedded into the mounting ring 402 from above the limiting support frame 4, with its upper surface flush with the upper surface of the limiting ring 401. The function of the first cover plate 5 is to cover the top opening of the fixed cylinder 1, preventing liquid from splashing out from the top of the fixed cylinder 1 during the rotation of the filter barrel 6, and simultaneously blocking external dust and impurities from entering the fixed cylinder 1 and contaminating the metal powder. A first pull ring 501 is welded to the center of the upper surface of the first cover plate 5. The first pull ring 501 has a U-shaped structure and is made of stainless steel. The function of the first pull ring 501 is to facilitate the operator's gripping of the first cover plate 5 to remove it from the limiting support frame 4 for loading or unloading operations.

[0021] The second cover plate 8 is also circular and flat, with a diameter matching the inner diameter of the filter barrel 6. Three second limiting blocks 801 are integrally formed on the lower edge of the second cover plate 8, and these three blocks are evenly distributed circumferentially. Correspondingly, three first limiting grooves 601 matching the second limiting blocks 801 are formed on the upper inner circumferential wall of the filter barrel 6, and these grooves are also evenly distributed circumferentially. During installation, the second cover plate 8 is placed over the top opening of the filter barrel 6, while the three second limiting blocks 801 on the lower surface of the second cover plate 8 are respectively engaged in the three first limiting grooves 601 on the upper part of the filter barrel 6. Through the cooperation of the second limiting blocks 801 and the first limiting grooves 601, the second cover plate 8 is fixed and positioned on the filter barrel 6, preventing relative sliding of the second cover plate 8 during the rotation of the filter barrel 6. The function of the second cover plate 8 is to prevent the metal powder inside the filter barrel 6 from being thrown out of the filter barrel 6 during high-speed rotation, and to further prevent liquid splashing, ensuring that all the metal powder can be trapped inside the filter barrel 6. A second pull ring 802 is welded to the center of the upper surface of the second cover plate 8. The second pull ring 802 is also U-shaped and made of stainless steel. Its function is to facilitate the operator to grab it so that the second cover plate 8 can be removed from the filter barrel 6 for unloading operations. In actual use, the wet powder rapid dehydration device of this embodiment first removes the first cover plate 5 using the first pull ring 501, and then removes the second cover plate 8 using the second pull ring 802. The metal powder after wet ball milling is poured into the filter barrel 6 equipped with filter cloth. Then, the second cover plate 8 is closed, ensuring that the second limiting block 801 is engaged in the first limiting groove 601. The first cover plate 5 is then closed, ensuring that the first cover plate 5 is embedded in the mounting ring 402. The motor 3 is started, and the motor 3 drives the tray 7 to rotate through the transmission shaft. The tray 7 is connected to the second limiting groove 601 by the first limiting block 602. The limiting groove 702 drives the filter barrel 6 to rotate synchronously at high speed. Under the action of centrifugal force, the water in the metal powder passes through the filter holes on the wall of the filter barrel 6 and enters the fixed cylinder 1. Under the guidance of the funnel-shaped structure at the bottom of the fixed cylinder 1, the water gathers to the drain outlet 101 and flows into the designated collection container through the drain outlet 101. After the dehydration is completed, the motor 3 is turned off. After the filter barrel 6 stops rotating completely, the first cover plate 5 and the second cover plate 8 are removed in sequence, the filter barrel 6 is taken out from the tray 7, and the dehydrated metal powder is poured out, completing the entire dehydration process.

[0022] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A rapid dehydration device for wet powder, characterized in that: The system includes a fixed cylinder (1), a fixed frame (2), a motor (3), a tray (7), and a filter barrel (6). The fixed cylinder (1) is installed inside the fixed frame (2). The lower part of the fixed cylinder (1) is funnel-shaped, with a drain outlet (101) on the bottom side and a mounting hole (103) in the center of the bottom. A waterproof wall (102) extending into the fixed cylinder (1) is provided around the mounting hole (103). The motor (3) is fixedly installed in the lower part of the fixed cylinder (1), and its drive shaft passes through the mounting hole (103). The tray (7) is movably installed on the upper side of the waterproof wall (102), and its lower part is fixedly connected to the drive shaft of the motor (3) through a coupling. The filter barrel (6) is limited and installed inside the tray (7). The fixing frame (2) includes a fixing ring (201), a support ring (202), connecting rods (205), and support legs (203). Multiple connecting rods (205) are circumferentially connected to the fixing ring (201) and the support ring (202). Multiple support legs (203) are correspondingly fixed to multiple connecting rods (205). The fixing cylinder (1) is limited and installed within the fixing ring (201) and supported by the support ring (202). It also includes a second cover plate (8), on which a plurality of second limiting blocks (801) are evenly arranged in the circumference. A plurality of first limiting grooves (601) are evenly arranged in the circumference of the upper part of the filter barrel (6). The second cover plate (8) is detachably installed on the upper part of the filter barrel (6) through the second limiting blocks (801). A second pull ring (802) is also provided on the upper part of the second cover plate (8). It also includes a limiting support frame (4), which includes a limiting ring (401), an mounting ring (402), a support rod (403), and rollers (404). The mounting ring (402) is integrally formed with the limiting ring (401). The outer diameter of the mounting ring (402) is smaller than the inner diameter of the fixed cylinder (1), and the outer diameter of the limiting ring (401) is larger than the outer diameter of the fixed cylinder (1). The mounting ring (402) is detachably installed inside the fixed cylinder (1). There are multiple support rods (403) that are evenly arranged circumferentially on the inner wall of the mounting ring (402). There are multiple rollers (404) that are installed laterally at the tails of the multiple support rods (403). The rollers (404) abut against the filter barrel (6).

2. The wet powder rapid dehydration device according to claim 1, characterized in that: The tray (7) is provided with an installation groove (701), and the installation groove (701) is provided with a plurality of second limiting grooves (702) evenly arranged around its circumference. The bottom of the filter bucket (6) is provided with a plurality of first limiting blocks (602) that match the second limiting grooves (702). The filter bucket (6) is engaged with the installation groove (701) in the tray (7) through the first limiting blocks (602).

3. The wet powder rapid dehydration device according to claim 1, characterized in that: The filter barrel (6) has multiple filter holes evenly arranged on its wall.

4. The wet powder rapid dehydration device according to claim 1, characterized in that: The fixing frame (2) preferably includes anti-slip pads (204), and there are multiple anti-slip pads (204) which are correspondingly installed on the bottom of multiple legs (203).

5. The wet powder rapid dehydration device according to claim 1, characterized in that: It also includes a first cover plate (5), which is detachably embedded in the upper part of the limiting support frame (4), and a first pull ring (501) is also provided on the upper part of the first cover plate (5).

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