Powder wet-type vibration screening device

Abstract

The invention discloses a powder wet-type vibration screening device which comprises a vibration device and a powder feeding device. A screen seat is arranged at the top of the vibrating device, a screen is arranged on the screen seat, a stirring device is arranged in the screen and is arranged at the bottom of a top cover, a spraying device is arranged at the bottom of the top cover, and a nozzle is arranged at the bottom of the spraying device; the vibration device comprises an electromagnet arranged at the bottom of the vibration device, an electromagnet fixing base arranged on an outer ring of the electromagnet, a second vibration plate connected to the electromagnet fixing base through a buffering rubber mat, a first vibration plate connected to the bottom of the second vibration plate, a vibration rod arranged on the first vibration plate and a locking block connected to the top of the vibration rod. The screen ring is arranged on the locking block; and the vibration plate I and the vibration plate II are arranged at an included angle to optimize the vibration effect. According to the powder wet type vibration screening device, efficient and uniform screening of powder materials under the wet method condition is achieved, screen mesh blocking is avoided, and the screening efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of powder screening, in particular to a powder wet vibration screening device. Background Art

[0002] In the process of industrial production and processing, the screening of powder materials is an important process, especially for materials that need to be wet screened. Traditional methods often have problems such as uneven screening and low screening efficiency. The traditional powder wet vibration screening device uses vibration to evenly distribute the powder on the screen, and keeps the powder moist through the spray system to prevent adhesion and blockage of the screen aperture. At the same time, the stirring device is responsible for breaking the agglomeration of the material to ensure a more uniform screening process. Although the existing powder wet vibration screening device can meet the basic screening needs to a certain extent, there are still many problems in actual applications, such as poor vibration effect and difficulty in adjustment of the vibration system, poor screening of the screening system, and unreasonable spraying of the spray system, which further leads to agglomeration of the screened powder and difficulty in screening. Especially when dealing with complex materials, the screening efficiency and screening rate are often difficult to reach the ideal level. Summary of the invention

[0003] In order to solve the defects in the prior art, the present invention provides a vibrating screening device which can achieve efficient and uniform screening and avoid clogging of the screen.

[0004] The present invention first provides a powder wet vibration screening device, comprising: a vibration device; a screen seat is arranged on the top of the vibration device, a screen is arranged on the screen seat, a stirring device is arranged in the screen, the stirring device is arranged at the bottom of a top cover, a spray device is arranged at the bottom of the top cover, and a nozzle is arranged at the bottom of the spray device; the vibration device comprises: an electromagnet arranged at the bottom of the vibration device, an electromagnet fixing seat arranged on the outer ring of the electromagnet, a vibration plate 2 connected to the electromagnet fixing seat via a buffer rubber pad, a vibration plate 1 connected to the bottom of the vibration plate 2, a vibration rod arranged on the vibration plate 1, a locking block connected to the top of the vibration rod, and a screen ring arranged on the locking block; the angle between the vibration plate 1 and the vibration plate 2 is set to optimize the vibration effect.

[0005] The vibration device includes an electromagnet, an electromagnet fixing seat, a vibration plate 1, a vibration plate 2, a cushioning rubber pad, a vibration rod and a locking block. The electromagnet is installed at the bottom of the device, surrounded by an electromagnet fixing seat, and the fixing seat is connected to the main frame by bolts. There is a certain angle between vibration plate 1 and vibration plate 2, and this angle is preferably set to an angle of 1-90 degrees, and more preferably an angle of 90 degrees. This design optimizes the vibration effect and makes the vibration more uniform and effective. Vibration plate 2 is connected to the electromagnet fixing seat through a cushioning rubber pad, and vibration plate 1 is connected to the bottom of vibration plate 2. While reducing shock, the amplitude of the linkage vibration between vibration plate 1 and vibration plate 2 is reduced, reducing the vibration influence between each other. The vibration rod is vertically installed on vibration plate 1, and the top is connected to the screen ring through a locking block to ensure that the vibration can be effectively transmitted to the screen. Vibration plate 1 is not directly connected to the electromagnet fixing seat, but is indirectly connected through vibration plate 2.

[0006] The present invention also provides the following optimization scheme:

[0007] Furthermore, two vibration rods are arranged opposite to each other. The vibration rods are arranged symmetrically, that is, two vibration rods are arranged opposite to each other on the vibration plate, and each vibration rod is connected to a corresponding locking block and a screen ring.

[0008] Furthermore, the mesh ring is locked on the top of the electromagnet fixing seat by the locking block arranged on the top of the two vibrating rods. The mesh ring is firmly fixed on the top of the two vibrating rods by the locking block, ensuring that it is accurately located on the top of the electromagnet fixing seat, thereby realizing effective transmission of vibration.

[0009] Furthermore, the center point of the screen ring coincides with the center point of the electromagnet fixing seat.

[0010] Furthermore, the spray device includes: a core shaft arranged at the top, a bearing arranged at the bottom of the core shaft, a sleeve arranged at the bottom of the bearing, and a connecting sleeve arranged at the bottom of the sleeve, which are connected in sequence; a connecting shaft is connected to the bottom of the connecting sleeve, and a left tube and a right tube are arranged on both sides of the connecting shaft; and spray ports are arranged on the left tube and the right tube.

[0011] As the central axis of the spray device, the mandrel is connected to the top cover through threads, and a retaining ring is provided at its lower end to fix the sleeve. The bearing is located between the mandrel and the sleeve, providing rotation support to ensure the smooth operation of the spray device. The sleeve is connected to the mandrel through threads, and a synchronous wheel is provided at the bottom, which is connected to the motor through a synchronous belt to drive the entire spray system to rotate. The connecting sleeve is connected to the sleeve through an external thread, and an internal thread is provided inside for connection with the connecting shaft. The two ends of the connecting shaft are welded to the left and right pipes respectively, and an external thread is provided in the middle, which is threadedly connected to the connecting sleeve to ensure the stability of the entire spray system. The two pipes, the left pipe and the right pipe, are symmetrically arranged on both sides of the connecting shaft, and spray ports are opened on them for spraying water or other media.

[0012] Furthermore, a short pin 1 is arranged at the bottom of the far end of the left tube.

[0013] Furthermore, a second short pin is provided at the bottom of the far end of the right tube.

[0014] A short pin 1 is provided at the bottom of the far end of the left tube, and a short pin 2 is provided at the bottom of the far end of the right tube. The two pins are helpful to produce an umbrella-shaped spray and prevent powder from sticking.

[0015] Furthermore, the stirring device is provided with a scraper fixing plate and a scraper.

[0016] Furthermore, the scraper is a long strip scraper.

[0017] Furthermore, the scraper is provided with scraper screen holes.

[0018] The scraper fixing plate serves as a carrier of the scraper and is fixed to the connecting shaft by bolts and rotates together with the connecting shaft.

[0019] The scraper is long and made of flexible material. It has several scraper holes on its surface, which can effectively disperse the material during the mixing process and scrape off the particles that block the screen aperture. The scraper is fixed to the scraper fixing plate by bolts and nuts to ensure that it remains stable during operation.

[0020] The beneficial effects of the present invention are:

[0021] 1. The powder wet vibration screening device of the present invention optimizes the vibration device. There is a certain angle design between the vibration plate 1 and the vibration plate 2 of the present invention. This design optimizes the vibration effect, reduces the overall amplitude of the screening device through shock absorption and buffering, increases the service life of the instrument, and reduces the invalid vibration in the non-vibration direction, so that the vibration can be transmitted to the entire screen more evenly. By adjusting the angle, it can be ensured that the transmission of vibration in different directions is more balanced, avoiding the problem of excessive or small local amplitude. The present invention adopts two symmetrically arranged vibration rods to ensure that the vibration can be evenly transmitted from the electromagnet at the bottom to the screen ring at the top. This symmetrical design makes the vibration transmission more stable and avoids the vibration offset or unevenness that may be caused by a single vibration rod.

[0022] 2. The screen seat of the present invention adopts a ring design to ensure that the screen can be evenly stressed during the vibration process. The ring design not only improves the stability of the screen, but also allows the vibration to be more evenly transmitted to the entire screen surface, avoiding the problem of inconsistent local amplitude.

[0023] 3. The spray system of the present invention adopts an umbrella-shaped spray design. Multiple spray ports are respectively provided on the left tube and the right tube. The nozzle can produce an umbrella-shaped spray to ensure that the water flow can evenly cover the entire screen surface. This design not only improves the uniformity of the spray, but also effectively prevents the powder from adhering to the top cover or the side wall, ensuring a smooth screening process. When the water pressure is too high, the pressure relief hole on the sleeve will automatically relieve pressure to prevent water from entering the bearing and protect the safe operation of the equipment. The connecting shaft of the spray system is connected to the motor through a synchronous wheel to drive the entire spray system to rotate. This design enables the spray port to continuously spray water during the rotation process, ensuring that the water flow can evenly cover the entire screen surface, avoiding the problem of uneven spraying in traditional spray systems.

[0024] 4. The stirring device of the present invention can achieve uniform stirring of materials through the flexible and long scraper design, which significantly improves the screening rate and screening rate of the materials.

[0025] The powder wet vibrating screening device provided by the present invention realizes efficient and uniform screening of powder materials under wet conditions through reasonable design, avoids screen blockage, and improves screening efficiency. In addition, the device has a simple structure and is easy to maintain, and is suitable for wide application in industrial production and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall diagram of the powder wet vibrating screening device of the present invention;

[0027] Figure 2 is a three-dimensional diagram of the vibration device of the present invention;

[0028] Figure 3 is a three-dimensional diagram of the spray device of the present invention;

[0029] Figure 4 is a three-dimensional diagram of the stirring device of the present invention;

[0030] The accompanying drawings are marked as follows:

[0031] 1. Top cover; 2. Spraying device; 3. Nozzle; 4. Stirring device; 5. Screen; 6. Screen seat; 7. Vibrating device; 8. Screen ring; 9. Vibrating rod; 10. Locking block; 11. Vibrating plate 1; 12. Vibrating plate 2; 13. Buffer rubber pad; 14. Electromagnet fixing seat; 15. Electromagnet; 16. Mandrel; 17. Bushing; 18. Connecting sleeve; 19. Right tube; 20. Left tube; 21. Short pin 1; 22. Connecting shaft; 23. Short pin 2; 24. Bearing; 25. Synchronous wheel; 26. Scraper fixing plate; 27. Scraper. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0033] like Figure 1 and 2 As shown, the present invention first provides a powder wet vibration screening device, comprising:

[0034] A vibration device; a screen seat 6 is arranged on the top of the vibration device, and a screen 5 is arranged on the screen seat 6; a stirring device 4 is arranged in the screen 5, and the stirring device 4 is arranged at the bottom of a top cover 1; a spray device 2 is arranged at the bottom of the top cover 1, and a nozzle 3 is arranged at the bottom of the spray device 2; the vibration device includes: an electromagnet 15 arranged at the bottom of the vibration device, an electromagnet fixing seat 14 arranged on the outer ring of the electromagnet 15, a vibration plate 12 connected to the electromagnet fixing seat 14 via a buffer rubber pad 13, a vibration plate 11 connected to the bottom of the vibration plate 12, a vibration rod 9 arranged on the vibration plate 11, a locking block 10 connected to the top of the vibration rod 9, and a screen ring 8 arranged on the locking block 10; the angle between the vibration plate 11 and the vibration plate 12 is set to optimize the vibration effect.

[0035] The electromagnet 15 is preferably configured as a cylindrical electromagnetic coil, which is installed at the bottom of the vibrating device 7 and surrounded by the electromagnet fixing seat 14. The electromagnet 15 is connected to the power supply through wires, and generates a magnetic field after power is turned on, driving the vibration plate 11 to vibrate. The electromagnet 15 is fixed to the electromagnet fixing seat 14 by bolts to ensure that it remains stable during operation. The electromagnet 15 is the power source of the vibration device, and generates a magnetic field by powering on, driving the vibration plate 11 to vibrate, and then transmitting the vibration to the entire screening system.

[0036] The electromagnet fixing seat 14 is an annular metal part surrounding the electromagnet 15, and four cushioning rubber pads 13 are arranged on the top for connecting the vibration plate 2 12. The electromagnet fixing seat 14 is connected to the main frame by bolts to ensure that it remains stable during operation. The electromagnet fixing seat 14 is fixed to the main frame by bolts, and the top is connected to the vibration plate 2 12 by cushioning rubber pads 13 to ensure that the vibration can be effectively transmitted to the screen 5. The electromagnet fixing seat 14 serves as a supporting structure for the electromagnet 15, and is fixed to the bottom of the vibration device 7.

[0037] The vibration plate 11 is preferably a rectangular or circular metal plate, with a vibration rod 9 on the top, and the top is fixedly connected to the vibration plate 2 12. There is a certain angle between the vibration plate 11 and the vibration plate 2 12. This design optimizes the vibration effect and makes the vibration more uniform and effective. The vibration plate 2 12 is connected to the electromagnet fixing seat 14 through a buffer rubber pad 13 arranged on the electromagnet fixing seat 14, and the bottom is fixedly connected to the vibration plate 11. The top of the vibration plate 11 is connected to the locking block 10 through the vibration rod 9. As a key component for vibration transmission, the vibration plate 11 is responsible for transmitting the vibration generated by the electromagnet 15 to the vibration rod 9, and then transmitting the vibration to the screen 5. The design of the vibration plate 11 makes the vibration more uniform and effective. The design of the angle between the vibration plate 11 and the vibration plate 2 12 optimizes the vibration effect and ensures stability and efficiency during the screening process.

[0038] The vibration plate 2 12 is preferably a rectangular or circular metal plate, with four buffer rubber pads 13 at the bottom for connecting to the electromagnet fixing seat 14. There is a certain angle between the vibration plate 2 12 and the vibration plate 1 11. This design optimizes the vibration effect and makes the vibration more uniform and effective. The vibration plate 2 12 is connected to the electromagnet fixing seat 14 through the buffer rubber pad 13 to ensure effective shock absorption. As an auxiliary component for vibration transmission, the vibration plate 2 12 is responsible for absorbing the invalid vibration of the electromagnet fixing seat 14 and optimizing the resonance through the buffer rubber pad 13, and plays the role of shock absorption and optimization of vibration frequency during the vibration process. The design of the vibration plate 2 12 optimizes the vibration effect, reduces the impact of vibration on the main frame, and extends the service life of the equipment.

[0039] The buffer rubber pad 13 is preferably configured as two or four circular gaskets made of rubber or silicone material, which are installed between the vibration plate 12 and the electromagnet fixing seat 14. The buffer rubber pad 13 has good elasticity and shock absorption performance, can effectively absorb vibration energy, and reduce the impact of vibration on the main frame. The buffer rubber pad 13 is fixed between the vibration plate 12 and the electromagnet fixing seat 14 by bolts. The buffer rubber pad 13 serves as a shock-absorbing and buffering component, which is responsible for absorbing vibration energy, reducing the impact of vibration on the main frame, extending the service life of the equipment, significantly reducing vibration noise, extending the service life of the equipment, and ensuring the stability and efficiency of vibration transmission.

[0040] The vibration rod 9 is two symmetrically arranged cylindrical metal rods, with a locking block 10 on the top and the bottom welded to a vibration plate 11. The design of the vibration rod 9 enables the vibration to be transmitted from the electromagnet 15 at the bottom to the screen 5 at the top. The vibration rod 9 is connected to the screen ring 8 through the locking block 10, and the bottom is welded to the vibration plate 11 to ensure that the vibration can be effectively transmitted to the screen 5. As a key component for vibration transmission, the vibration rod 9 is responsible for transmitting the vibration from the electromagnet 15 at the bottom to the screen 5 at the top, ensuring stability and efficiency during the screening process.

[0041] The locking block 10 is two symmetrically arranged metal blocks, which are installed on the top of the vibration rod 9 and are used to fix the screen ring 8. The locking block 10 is connected to the vibration rod 9 by bolts to ensure that the screen ring 8 is firmly fixed on the top of the vibration rod 9. The locking block 10 is connected to the vibration rod 9 by bolts, and the screen ring 8 is fixed on the top by bolts to ensure that the screen ring 8 is firmly fixed on the top of the vibration rod 9. As a fixing component, the locking block 10 is responsible for firmly fixing the screen ring 8 on the top of the vibration rod 9 to ensure that the vibration can be effectively transmitted to the screen 5. The design of the locking block 10 ensures the stability and reliability of the screen ring 8 and prevents the screen ring 8 from loosening or falling off during the vibration process.

[0042] In a preferred embodiment, the screen ring 8 is locked just above the electromagnet fixing seat 14 via the locking blocks 10 disposed on the tops of the two vibrating rods 9. The center points of the screen ring 8 and the electromagnet fixing seat 14 coincide with each other.

[0043] The screen ring 8 is an annular metal part installed on the top of the locking block 10 to fix the screen 5. The center point of the screen ring 8 coincides with the center point of the electromagnet fixing seat 14, ensuring that the vibration can be evenly transmitted to the screen 5. The screen ring 8 is fixed to the top of the vibration rod 9 through the locking block 10 to ensure that the vibration can be effectively transmitted to the screen 5. The screen ring 8 serves as a fixing structure of the screen 5 and is responsible for firmly fixing the screen 5 on the top of the vibration device 7 to ensure that the vibration can be evenly transmitted to the screen 5. The design of the screen ring 8 ensures the stability and reliability of the screen 5, avoids the screen 5 from loosening or falling off during the vibration process, and significantly improves the screening efficiency.

[0044] The vibration plate 2 12 is connected to the electromagnet fixing seat 14 through four buffer rubber pads 13, which not only play a shock-absorbing role, but also can adjust the transmission path of the vibration to ensure that the vibration is evenly distributed on the entire screen 5. In addition, the buffer rubber pads 13 can also absorb excess vibration energy, reduce the impact of vibration on the main frame, and extend the service life of the equipment.

[0045] The working principle of the vibration device 7 is as follows: the electromagnet 15 generates a magnetic field after being energized, driving the vibration plate 2 12 to vibrate, and the vibration plate 2 12 drives the vibration plate 1 11 to vibrate. The vibration plate 1 11 transmits the vibration to the locking block 10 through the vibration rod 9, and the locking block 10 then transmits the vibration to the screen ring 8. The screen ring 8 transmits the vibration to the screen 5 through the screen seat 6, so that the screen 5 evenly distributes the powder during the vibration process to avoid local accumulation. The vibration plate 2 12 is connected to the electromagnet fixing seat 14 through the buffer rubber pad 13, which plays a role of shock absorption and buffering during the vibration process, reducing the impact of vibration on the main frame.

[0046] The vibration plate 1 11 and the vibration plate 2 12 are arranged to have a certain angle, and the angle between the two is set to 1-90 degrees. The more preferred angle is set to 90 degrees, which can bring about many technical effects:

[0047] 1. Reduce lateral vibration interference:

[0048] The 90-degree angle design makes the vibration transmission between the vibration plate 1 11 and the vibration plate 2 12 mainly concentrated in the vertical direction, reducing the generation of lateral vibration. Lateral vibration may cause the screen 5 to shake unnecessary in the horizontal direction, affecting the screening effect. Through the 90-degree angle design, the vibration energy is mainly concentrated in the vertical direction, reducing the interference of lateral vibration, ensuring that the screen 5 always remains stable during the vibration process, and avoiding irregular movement or accumulation of materials on the screen.

[0049] 2. Optimize vibration efficiency

[0050] The 90-degree angle design makes the vibration transmission between the vibration plate 1 11 and the vibration plate 2 12 smoother, reducing energy loss. Since the vibration energy can be more effectively transmitted to the screen 5, the vibration amplitude is significantly enhanced. A larger vibration amplitude helps to break the agglomeration of the material and make the powder more evenly distributed on the screen, thereby improving the screening efficiency and screening rate.

[0051] The 90-degree angle design makes the natural frequency of the vibration system more stable, avoiding the resonance problem caused by the improper angle between the vibration plates. Resonance may cause the vibration system to produce excessive amplitude at certain frequencies, thereby affecting the stability and safety of the equipment. Through the 90-degree angle design, the natural frequency of the vibration system is optimized, and it can maintain a stable vibration effect in a wider frequency range to meet the screening needs of different types of materials.

[0052] 3. Improve screening uniformity

[0053] The 90-degree angle design allows the vibration energy to be evenly transmitted to the entire screen 5, avoiding the problem of excessive or insufficient local amplitude. Conventional vibration systems may have uneven vibration transmission, resulting in insufficient vibration intensity in some areas of the screen 5 and excessive intensity in other areas. The 90-degree angle design ensures that the vibration energy is evenly distributed on the entire screen 5, avoiding the phenomenon of inconsistent local vibration, so that the material can be more evenly distributed on the screen, improving the uniformity of screening.

[0054] Since the vibration energy can be evenly transmitted to the entire screen 5, the 90-degree angle design effectively prevents local accumulation of materials on the screen 5. In traditional vibration systems, due to uneven vibration transmission, materials may accumulate excessively in certain areas, resulting in reduced screening efficiency. The 90-degree angle design allows the material to be evenly distributed on the screen, avoiding local accumulation and ensuring the continuity and efficiency of the screening process.

[0055] 4. Extend equipment service life

[0056] The 90-degree angle design makes the vibration transmission between the vibration plate 1 11 and the vibration plate 2 12 smoother, reducing the accumulation of mechanical stress. In a traditional vibration system, if the angle between the vibration plates is inappropriate, it may cause additional mechanical stress during the vibration transmission process, thereby accelerating the wear and aging of the equipment. The 90-degree angle design reduces this additional mechanical stress, extends the service life of the equipment, and reduces maintenance costs.

[0057] The 90-degree angle design allows the vibration energy to be transmitted to the screen 5 in a more concentrated manner, reducing the possibility of vibration transmission to the external structure. In traditional vibration systems, improper vibration transmission may cause the entire device to generate large noise and vibration, affecting the working environment. The 90-degree angle design effectively reduces noise and vibration transmission, improves the operating environment of the device, and enhances the user experience.

[0058] like Figure 3 As shown, the spray device 2 includes: a core shaft 16 arranged at the top, a bearing 24 arranged at the bottom of the core shaft 16, a sleeve 17 arranged at the bottom of the bearing 24, and a connecting sleeve 18 arranged at the bottom of the sleeve 17, which are connected in sequence; a connecting shaft 22 is connected to the bottom of the connecting sleeve 18, and a left tube 20 and a right tube 19 are arranged on both sides of the connecting shaft 22; and spray ports are arranged on the left tube 20 and the right tube 19.

[0059] The mandrel 16 is a hollow cylindrical metal tube with an external thread on the top for connection with the top cover 1 and a snap ring on the bottom for fixing the sleeve 17. The mandrel 16 is connected to the top cover 1 by threads and the sleeve 17 is fixed by the snap ring. The interior of the mandrel 16 is hollow, allowing water to enter from the top and be transported to the connecting shaft 22 through the internal pipe. The mandrel 16 is the central axis of the entire spray system, responsible for transporting water or other media from the top cover 1 to the nozzle 3 at the bottom, and drives the entire spray system to work by rotation. The design of the mandrel 16 ensures the smooth transmission of water flow, and at the same time, the stability and reliability of the spray system are guaranteed by threaded connection and snap ring fixation.

[0060] The bearing 24 is a standard rolling bearing, which is installed between the mandrel 16 and the sleeve 17. The outer ring is tightly matched with the sleeve 17, and the inner ring is in rotational contact with the mandrel 16. The bearing 24 is fixed between the mandrel 16 and the sleeve 17 by retaining rings at the upper and lower ends to ensure that it maintains a stable rotation state during operation. The bearing 24 provides low-friction rotation support, reduces the friction between the mandrel 16 and the sleeve 17, and ensures that the spray device can operate smoothly.

[0061] The sleeve 17 is a cylindrical metal part with internal threads, with a synchronous wheel 25 on the top and connected to the connecting sleeve 18 by threads at the bottom. A pressure relief hole is provided inside the sleeve 17 to prevent water from entering the bearing 24 when the water pressure is too high. The sleeve 17 is connected to the mandrel 16 by internal threads, and the bottom is connected to the connecting sleeve 18 by threads. The synchronous wheel 25 is welded to the top of the sleeve 17 and connected to the motor by a synchronous belt to drive the entire sprinkler system to rotate. The sleeve 17 not only serves as a connector, but also transfers the water flow from the mandrel 16 to the connecting shaft 22, and realizes rotation drive through the synchronous wheel 25.

[0062] The connecting sleeve 18 is a short tubular part with internal and external threads, the top of which is connected to the shaft sleeve 17 by threads, and the bottom of which is connected to the connecting shaft 22 by threads. The connecting sleeve 18 is connected to the shaft sleeve 17 by external threads, and connected to the connecting shaft 22 by internal threads, ensuring that the water flow can be smoothly transferred from the shaft sleeve 17 to the connecting shaft 22. As an intermediate connecting piece, the connecting sleeve 18 is responsible for transferring the water flow from the shaft sleeve 17 to the connecting shaft 22 and ensuring the sealing of the entire sprinkler system.

[0063] The connecting shaft 22 is a hollow cylindrical metal tube, with a left tube 20 and a right tube 19 welded on both sides, and an external thread at the bottom for connecting with the connecting sleeve 18. The connecting shaft 22 is connected to the connecting sleeve 18 through the external thread, and the left tube 20 and the right tube 19 on both sides are welded at both ends to ensure that the water flow can be transferred from the connecting shaft 22 to the left tube 20 and the right tube 19. As the main axis of the sprinkler system, the connecting shaft 22 is responsible for transferring the water flow from the connecting sleeve 18 to the left tube 20 and the right tube 19, and drives the entire sprinkler system to work through rotation.

[0064] The left tube 20 and the right tube 19 are two symmetrically arranged cylindrical metal tubes, which are welded on both sides of the connecting shaft 22, and a plurality of spray ports are provided on the tube wall for spraying water or other media. A short pin 1 21 is provided at the bottom of the far end of the left tube 20, and a short pin 23 is provided at the bottom of the far end of the right tube 19. The left tube 20 and the right tube 19 are fixed on both sides of the connecting shaft 22 by welding to ensure that the water flow can be transmitted from the connecting shaft 22 to the left tube 20 and the right tube 19. The short pin 1 21 and the short pin 2 23 are respectively installed at the far end bottom of the left tube 20 and the right tube 19 to produce an umbrella-shaped spray to prevent the powder from adhering to the top cover 1 or the side wall. As the end of the spray system, the left tube 20 and the right tube 19 are responsible for transmitting the water flow from the connecting shaft 22 to the nozzle 3, and spraying water or other media through the spray ports. The design of the short pin 1 21 and the short pin 2 23 enables the spray port to produce an umbrella-shaped spray, ensuring a more uniform spray and avoiding powder adhesion.

[0065] Nozzle 3 is a small nozzle installed at the spraying ports of the left tube 20 and the right tube 19, responsible for spraying water or other media at high pressure onto the powder surface on the screen 5. The design of nozzle 3 allows the flow rate and pressure to be adjusted to accommodate different types of powder materials. Nozzle 3 is directly installed at the spraying ports of the left tube 20 and the right tube 19 to ensure that the water flow can be sprayed smoothly from the spraying ports. As the terminal component of the spraying system, nozzle 3 is responsible for spraying water or other media at high pressure onto the powder surface on the screen 5, ensuring that the powder remains moist during the screening process to avoid adhesion and clogging of the screen aperture.

[0066] The working principle of the spray device 2 is as follows:

[0067] The motor drives the synchronous wheel 25 to rotate through the synchronous belt, and the synchronous wheel 25 drives the sleeve 17 to rotate. The sleeve 17 transmits the rotation to the connecting shaft 22 through the connecting sleeve 18, and the left tube 20 and the right tube 19 on both sides of the connecting shaft 22 rotate accordingly. The nozzles 3 on the left tube 20 and the right tube 19 continuously spray water or other media during the rotation process, forming an umbrella-shaped spray to ensure that the spray evenly covers the entire surface of the screen 5.

[0068] like Figure 4 As shown, the stirring device 4 is provided with a scraper fixing plate 26 and a scraper 27 .

[0069] The scraper fixing plate 26 is a circular or square metal plate with a through hole in the center for connecting with the connecting shaft 22. A plurality of bolt holes are provided on the plate surface for fixing the scraper 27. The scraper fixing plate 26 is fixed to the connecting shaft 22 by bolts and rotates with the connecting shaft 22. The scraper fixing plate 26 serves as a carrier of the scraper 27 and is responsible for driving the scraper 27 to rotate, ensuring that the scraper 27 can evenly stir the material in the screen 5.

[0070] The scraper 27 is a scraper made of a long strip of flexible material, with a number of scraper sieve holes on the surface, and the edge is slightly curved, which can slightly contact the screen 5 without causing damage to it. The length and width of the scraper 27 can be adjusted according to the size of the screen 5 to ensure that it can cover the entire surface of the screen 5. The scraper 27 is fixed to the scraper fixing plate 26 by bolts and nuts to ensure that it remains stable during rotation. During the rotation process, the scraper 27 stirs the powder in the screen 5 to break the agglomeration phenomenon and fully mix the powder with the medium. At the same time, the scraper sieve holes on the scraper 27 can scrape off the particles that block the aperture of the screen 5 to ensure a smooth screening process. The design of the scraper 27 can not only effectively disperse the material, but also prevent the aperture of the screen 5 from being blocked, significantly improving the screening efficiency and screening rate. The choice of flexible material ensures that the scraper 27 will not cause damage to the screen 5 while slightly contacting it, thereby extending the service life of the screen 5.

[0071] The working principle of the stirring device 4 is as follows:

[0072] The connecting shaft 22 is fixed to the scraper fixing plate 26 by bolts, driving the scraper fixing plate 26 to rotate. The scraper 27 on the scraper fixing plate 26 rotates with it to stir the powder in the screen 5. The scraper 27 continuously breaks the agglomeration phenomenon during the rotation process, so that the powder and the medium are fully mixed to ensure more uniform screening.

[0073] The spray device 2 of the present invention ensures that the powder remains moist during the screening process through uniform spraying and umbrella-shaped spraying to avoid adhesion and clogging; the stirring device 4 breaks the agglomeration phenomenon through the rotation of the long flexible scraper 27 to fully mix the powder with the medium; the vibration device 7 transmits the vibration generated by the electromagnet 15 to the screen 5 evenly, so that the powder is evenly distributed during the screening process to avoid local accumulation. The coordinated work of these three major components significantly improves the screening efficiency and screening rate, solves the defects existing in the prior art, and realizes efficient and uniform powder wet vibration screening.

[0074] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A powder wet vibrating screening device, characterized in that: include: A vibration device; a screen seat is arranged on the top of the vibration device, a screen is arranged on the screen seat, a stirring device is arranged in the screen, the stirring device is arranged at the bottom of a top cover, a spray device is arranged at the bottom of the top cover, and a nozzle is arranged at the bottom of the spray device; the vibration device comprises: an electromagnet arranged at the bottom of the vibration device, an electromagnet fixing seat arranged on the outer ring of the electromagnet, a vibration plate 2 connected to the electromagnet fixing seat via a buffer rubber pad, a vibration plate 2 connected to the electromagnet fixing seat via a buffer rubber pad, a vibration plate 1 connected to the bottom of the vibration plate 2, a vibration rod arranged on the vibration plate 1, a locking block connected to the top of the vibration rod, and a screen ring arranged on the locking block; the angle between the vibration plate 1 and the vibration plate 2 is set to optimize the vibration effect.

2. The powder wet vibrating screening device according to claim 1, characterized in that: Two vibration rods are arranged opposite to each other.

3. The powder wet vibrating screening device according to claim 2, characterized in that: The screen ring is locked just above the electromagnet fixing seat through the locking blocks arranged on the tops of the two vibrating rods.

4. The powder wet vibrating screening device according to claim 3, characterized in that: The center point of the screen ring coincides with the center point of the electromagnet fixing seat.

5. The powder wet vibrating screening device according to claim 1, characterized in that: The spray device includes: a core shaft arranged at the top, a bearing arranged at the bottom of the core shaft, a sleeve arranged at the bottom of the bearing, and a connecting sleeve arranged at the bottom of the sleeve, which are connected in sequence; a connecting shaft is connected to the bottom of the connecting sleeve, and a left tube and a right tube are arranged on both sides of the connecting shaft; and spray ports are arranged on the left tube and the right tube.

6. The powder wet vibrating screening device according to claim 5, characterized in that: A short pin 1 is arranged at the bottom of the far end of the left tube.

7. The powder wet vibrating screening device according to claim 6, characterized in that: A short pin 2 is arranged at the bottom of the far end of the right tube.

8. The powder wet vibrating screening device according to claim 1, characterized in that: The stirring device is provided with a scraper fixing plate and a scraper.

9. The powder wet vibrating screening device according to claim 8, characterized in that: The scraper is a long strip scraper.

10. The powder wet vibrating screening device according to claim 9, characterized in that: The scraper is provided with scraper screen holes.

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