A powder stirring and screening device
By designing a powder mixing and screening device, and using components such as a spiral feeder, cylindrical screen, and vibrating plate, the problems of low efficiency and pollution in traditional powder processing are solved, achieving efficient mixing and screening, and ensuring product purity and smoothness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINYE NEW MATERIAL TECH (KUNSHAN CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-31
AI Technical Summary
In traditional powder processing methods, mixing and screening are separate processes, which leads to low efficiency, long processing time, easy powder loss and secondary pollution, difficulty in solving agglomeration problems, and difficulty in complete separation by simple screening, thus affecting product purity.
A powder mixing and screening device was designed, comprising a mixer body, a spiral feed rod, a cylindrical screen and a vibrating plate. The spiral feed rod achieves uniform conveying and initial mixing of powder, the cylindrical screen performs fine screening, the vibrating plate prevents powder from agglomerating, and the bottom screen performs secondary screening to ensure complete separation of fine powder from large particles.
It achieves efficient mixing and sieving of powders, prevents powder from accumulating on the screen, improves flowability and sieving effect, ensures product purity, and reduces losses and pollution in intermediate processes.
Smart Images
Figure CN224574130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening device technology, specifically a powder stirring and screening device. Background Technology
[0002] In industries such as chemical, pharmaceutical, food, building materials, and metallurgy, the production and processing of powder materials, such as pharmaceutical powders, food additives, coating powders, and ore powders, often requires stirring, dispersing, breaking up agglomerates, and screening and grading to separate powders that meet particle size requirements. For example, pharmaceutical production needs to ensure uniform particle size to guarantee stable efficacy, while food processing requires screening for fine powders to improve taste. These needs have driven the development of specialized processing equipment.
[0003] The shortcomings of traditional processing methods: step-by-step processing is inefficient. In the early days, stirring and screening were often treated as separate processes. The powder was first dispersed by stirring equipment and then transferred to screening equipment for processing. There were many intermediate steps, which was time-consuming and could easily cause powder loss or secondary pollution. The problem of agglomeration was difficult to solve. Some powders were prone to agglomeration, and simple screening could not completely separate them, resulting in fine powder mixed with large particles, which affected the purity of the product. Utility Model Content
[0004] The purpose of this invention is to provide a powder mixing and screening device to solve the problems mentioned in the background art, such as low efficiency of step-by-step processing, where mixing and screening are often treated as independent processes, with powder first dispersed by mixing equipment and then transferred to screening equipment for processing. This process involves many intermediate steps, is time-consuming, and is prone to powder loss or secondary pollution. Furthermore, the problem of agglomeration is difficult to solve, as some powders are prone to agglomeration and simple screening is not enough to completely separate them, resulting in fine powder mixed with large particles, which affects the purity of the product.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a powder mixing and screening device, comprising a mixer body, a support frame fixedly connected to the lower surface of the mixer body, a feeding box fixedly installed on the right side of the mixer body, a mixing motor fixedly installed on the right side of the feeding box, a spiral feeding rod fixedly installed at the end of the mixing motor near the motor's drive end, a bearing fixedly installed on the right side of the feeding box, the drive end of the mixing motor extending through the bearing into the interior of the mixer body, a feeding port opened on the upper surface of the feeding box, a feeding channel fixedly connected to the upper end of the feeding port, the powder raw material being introduced into the feeding box through the feeding channel, the mixing motor driving the spiral feeding rod to rotate, thereby realizing the conveying and preliminary mixing of the powder, the powder in the feeding box being evenly fed into the interior of the mixer body under the action of the spiral feeding rod for further mixing.
[0006] In a further preferred embodiment, a stirring rod is fixedly installed at the end of the stirring motor away from the stirring end. A spiral blade is fixedly connected to the outer surface of the stirring rod, and a fixing rod is fixedly connected to both ends of the spiral blade. The design of the spiral blade enhances the stirring effect, allowing the powder to be more fully dispersed and mixed during the stirring process. The setting of the fixing rod ensures the stability and durability of the spiral blade, avoiding possible detachment or damage during the stirring process. Through the combined action of the stirring rod and the spiral blade, the powder can be stirred more uniformly.
[0007] More preferably, a cylindrical screen is fitted onto the outer surface of the spiral blade. The cylindrical screen is fixedly connected to the mixer body. A cylindrical receiving box is fixedly installed at one end of the cylindrical screen. A discharge hole is provided at the bottom of the cylindrical receiving box. A discharge channel is fixedly connected to the bottom of the discharge hole. A collection box is movably installed at the bottom of the discharge channel. A collection container is movably installed inside the collection box. The design of the cylindrical screen can finely sieve the stirred powder, ensuring the complete separation of fine powder and large particles. The sieved fine powder falls into the cylindrical receiving box through the cylindrical screen, and then enters the collection box inside the collection box through the discharge hole and the discharge channel, facilitating subsequent processing and collection.
[0008] More preferably, a vibration groove is provided on one side of the mixer body, and a vibration plate is fixedly installed inside the vibration groove. The vibration plate is adapted to the vibration groove, and a vibration motor is fixedly installed on the lower surface of the vibration plate. A flexible plate is fixedly connected to the upper surface of the vibration plate, and one end of the flexible plate is fixedly connected to the feeding box. The design of the vibration motor drives the reciprocating vibration of the vibration plate. This vibration helps to further disperse the powder, especially during the mixing and screening process, which can prevent the powder from accumulating or clogging on the screen and improve the smoothness of screening.
[0009] More preferably, the bottom of the mixer body has a bottom screening hole, and grooves are formed on both sides of the bottom screening hole. A bottom screen is fixedly installed inside the grooves, and the bottom screen is adapted to the grooves. One end of the bottom screen is fixedly connected to the vibrating plate. A discharge channel two is fixedly connected to the bottom of the bottom screening hole, and a collection box two is fixedly installed at the bottom of the discharge channel two. A collection box two is movably installed inside the collection box two. The design of the bottom screen can perform secondary screening of the powder at the bottom of the mixer body, ensuring that the powder remaining at the bottom of the mixer body can also be finely processed. The screened powder falls into the discharge channel two through the bottom screening hole and finally enters the collection box two inside the collection box two. At the same time, the fixed connection between the bottom screen and the vibrating plate allows the vibration to be transmitted to the entire mixer body, further enhancing the screening effect.
[0010] More preferably, a discharge channel three is fixedly installed on the left side of the mixer body, and a collection box three is fixedly installed at the bottom of the discharge channel three. A collection box three is movably installed inside the collection box three. The discharge channel three is designed mainly to discharge unqualified powders or impurities that may be generated during the mixing and screening process. These powders or impurities enter the collection box three inside the collection box three through the discharge channel three, which facilitates subsequent processing and cleaning.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] In this invention, powder raw materials are introduced into the feeding box through the feeding channel. The stirring motor drives the spiral feeding rod to rotate, thereby realizing the conveying and initial stirring of the powder. The powder in the feeding box is evenly fed into the interior of the mixer body under the action of the spiral feeding rod for further stirring. The design of the spiral blade enhances the stirring effect, allowing the powder to be more fully dispersed and mixed during the stirring process. The setting of the fixing rod ensures the stability and durability of the spiral blade, avoiding possible detachment or damage during the stirring process. Through the combined action of the stirring rod and the spiral blade, the powder can be stirred more evenly.
[0013] In this invention, the cylindrical screen design enables fine sieving of stirred powder, ensuring complete separation of fine powder from large particles. The sieved fine powder falls through the cylindrical screen into the cylindrical receiving box, and then enters the collection box within the collection box through the discharge hole and discharge channel, facilitating subsequent processing and collection. The vibrating motor design drives the reciprocating vibration of the vibrating plate, which helps to further disperse the powder, especially during stirring and sieving, preventing powder from accumulating or clogging on the screen and improving the smoothness of sieving.
[0014] In this invention, the bottom screen design enables secondary screening of the powder at the bottom of the mixer body, ensuring that the powder remaining at the bottom of the mixer body can also be finely processed. The screened powder falls into the discharge channel two through the bottom screening holes and finally enters the collection box two inside the collection box two. At the same time, the fixed connection between the bottom screen and the vibrating plate enables the vibration to be transmitted to the entire mixer body, further enhancing the screening effect. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a frontal three-dimensional structural diagram of the present invention;
[0017] Figure 3 This is a three-dimensional structural diagram of the feeding device of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the stirring device of this utility model;
[0019] Figure 5 This is a schematic diagram of the initial screening device of this utility model;
[0020] Figure 6 This is a three-dimensional structural diagram of the secondary screening device of this utility model;
[0021] Figure 7 This is a three-dimensional structural diagram of the vibration device of this utility model;
[0022] Figure 8 This is a three-dimensional structural diagram of the collection device of this utility model;
[0023] Figure 9 This is a cross-sectional structural diagram of the stirring and screening device of this utility model.
[0024] In the diagram: 1. Mixer body; 2. Support frame; 3. Feeding box; 4. Mixing motor; 5. Spiral feeder rod; 6. Bearing; 7. Feeding port; 8. Feeding channel; 9. Mixing rod; 10. Spiral blade; 11. Fixing rod; 12. Cylindrical screen; 13. Cylindrical collection box; 14. Discharge hole one; 15. Discharge channel one; 16. Collection box one; 17. Collection box one; 18. Vibrating trough; 19. Vibrating plate; 20. Vibrating motor; 21. Flexible plate; 22. Bottom screening hole; 23. Groove; 24. Bottom screen; 25. Discharge channel two; 26. Collection box two; 27. Collection box two; 28. Discharge channel three; 29. Collection box three; 30. Collection box three. Detailed Implementation
[0025] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-9This utility model provides a technical solution: a powder mixing and screening device, including a mixer body 1, a support frame 2 fixedly connected to the lower surface of the mixer body 1, a feeding box 3 fixedly installed on the right side of the mixer body 1, a mixing motor 4 fixedly installed on the right side of the feeding box 3, a spiral feeding rod 5 fixedly installed at the end of the transmission end of the mixing motor 4 near the end of the mixing motor 4, a bearing 6 fixedly installed on the right side of the feeding box 3, the transmission end of the mixing motor 4 extending through the bearing 6 into the interior of the mixer body 1, a feeding port 7 opened on the upper surface of the feeding box 3, a feeding channel 8 fixedly connected to the upper end of the feeding port 7, the powder raw material is introduced into the feeding box 3 through the feeding channel 8, the mixing motor 4 drives the spiral feeding rod 5 to rotate, thereby realizing the conveying and preliminary mixing of the powder, the powder in the feeding box 3 is evenly fed into the interior of the mixer body 1 under the action of the spiral feeding rod 5, and further undergoes mixing treatment.
[0027] In this embodiment, as Figure 1 and Figure 4 As shown, a stirring rod 9 is fixedly installed at the end of the stirring motor 4 away from the stirring motor 4. A spiral blade 10 is fixedly connected to the outer surface of the stirring rod 9. A fixing rod 11 is fixedly connected to both ends of the spiral blade 10. The design of the spiral blade 10 enhances the stirring effect, allowing the powder to be more fully dispersed and mixed during the stirring process. The setting of the fixing rod 11 ensures the stability and durability of the spiral blade 10, avoiding possible detachment or damage during the stirring process. Through the combined action of the stirring rod 9 and the spiral blade 10, the powder can be stirred more evenly.
[0028] In this embodiment, as Figure 1 , Figure 5 and Figure 9 As shown, a cylindrical screen 12 is fitted onto the outer surface of the spiral blade 10. The cylindrical screen 12 is fixedly connected to the mixer body 1. A cylindrical receiving box 13 is fixedly installed at one end of the cylindrical screen 12. A discharge hole 14 is opened at the bottom of the cylindrical receiving box 13. A discharge channel 15 is fixedly connected to the bottom of the discharge hole 14. A collection box 16 is movably installed at the bottom of the discharge channel 15. A collection box 17 is movably installed inside the collection box 16. The design of the cylindrical screen 12 can finely screen the powder after stirring, ensuring the complete separation of fine powder and large particles. The screened fine powder falls into the cylindrical receiving box 13 through the cylindrical screen 12, and then enters the collection box 17 inside the collection box 16 through the discharge hole 14 and the discharge channel 15, which is convenient for subsequent processing and collection.
[0029] In this embodiment, as Figure 1 and Figure 7As shown, a vibration groove 18 is provided on one side of the mixer body 1. A vibration plate 19 is fixedly installed inside the vibration groove 18. The vibration plate 19 is adapted to the vibration groove 18. A vibration motor 20 is fixedly installed on the lower surface of the vibration plate 19. A flexible plate 21 is fixedly connected to the upper surface of the vibration plate 19. One end of the flexible plate 21 is fixedly connected to the feeding box 3. The design of the vibration motor 20 drives the reciprocating vibration of the vibration plate 19. This vibration helps to further disperse the powder. Especially during the mixing and screening process, it can prevent the powder from accumulating or clogging on the screen and improve the smoothness of screening.
[0030] In this embodiment, as Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the bottom of the mixer body 1 has a bottom screening hole 22, and grooves 23 are provided on both sides of the bottom screening hole 22. A bottom screen 24 is fixedly installed inside the grooves 23. The bottom screen 24 is adapted to the grooves 23. One end of the bottom screen 24 is fixedly connected to the vibrating plate 19. The bottom of the bottom screening hole 22 is fixedly connected to the discharge channel 25. The bottom of the discharge channel 25 is fixedly installed with a collection box 26. A collection box 27 is movably installed inside the collection box 26. The design of the bottom screen 24 can perform secondary screening of the powder at the bottom of the mixer body 1, ensuring that the powder left at the bottom of the mixer body 1 can also be finely processed. The screened powder falls into the discharge channel 25 through the bottom screening hole 22 and finally enters the collection box 27 in the collection box 26. At the same time, the fixed connection between the bottom screen 24 and the vibrating plate 19 allows the vibration to be transmitted to the entire mixer body 1, further enhancing the screening effect.
[0031] In this embodiment, as Figure 1 and Figure 9 As shown, a discharge channel 328 is fixedly installed on the left side of the mixer body 1, and a collection box 329 is fixedly installed at the bottom of the discharge channel 328. A collection box 330 is movably installed inside the collection box 329. The discharge channel 328 is designed mainly to discharge unqualified powders or impurities that may be generated during the mixing and screening process. These powders or impurities enter the collection box 330 inside the collection box 329 through the discharge channel 328, which facilitates subsequent processing and cleaning.
[0032] The usage and advantages of this utility model: The working process of this powder stirring and screening device is as follows:
[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, powder raw materials are introduced into the feeding box 3 through the feeding channel 8. The stirring motor 4 drives the spiral feeding rod 5 to rotate, thereby realizing the conveying and initial stirring of the powder. The powder in the feeding box 3 is evenly fed into the interior of the mixer body 1 under the action of the spiral feeding rod 5 for further stirring. The design of the spiral blade 10 enhances the stirring effect, allowing the powder to be more fully dispersed and mixed during the stirring process. The setting of the fixing rod 11 ensures the stability and durability of the spiral blade 10, avoiding possible detachment or damage during the stirring process. Through the cooperation of the stirring rod 9 and the spiral blade 10, the powder can be stirred more evenly. The design of the cylindrical screen 12 can finely screen the stirred powder, ensuring the complete separation of fine powder and large particles. The screened fine powder falls into the cylindrical receiving box 13 through the cylindrical screen 12, and then enters the collection box 17 in the collection box 16 through the discharge hole 14 and the discharge channel 15. For subsequent processing and collection, the design of the vibrating motor 20 drives the reciprocating vibration of the vibrating plate 19. This vibration helps to further disperse the powder, especially during the mixing and sieving process. It can prevent the powder from accumulating or clogging on the screen, and improve the smoothness of sieving. The design of the bottom screen 24 can perform secondary sieving of the powder at the bottom of the mixer body 1, ensuring that the powder left at the bottom of the mixer body 1 can also be finely processed. The sieved powder falls into the discharge channel 25 through the bottom screening hole 22 and finally enters the collection box 27 in the collection box 26. At the same time, the fixed connection between the bottom screen 24 and the vibrating plate 19 allows the vibration to be transmitted to the entire mixer body 1, further enhancing the sieving effect. The design of the discharge channel 28 is mainly used to discharge unqualified powder or impurities that may be generated during the mixing and screening process. These powders or impurities enter the collection box 30 in the collection box 29 through the discharge channel 28, which is convenient for subsequent processing and cleaning.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A powder mixing and screening device comprising a mixing body (1), characterized in that: A support frame (2) is fixedly connected to the lower surface of the mixer body (1). A feeding box (3) is fixedly installed on the right side of the mixer body (1). A stirring motor (4) is fixedly installed on the right side of the feeding box (3). A spiral feeding rod (5) is fixedly installed at the end of the stirring motor (4) near the stirring motor (4). A bearing (6) is fixedly installed on the right side of the feeding box (3). The driving end of the stirring motor (4) extends through the bearing (6) into the interior of the mixer body (1). A feeding port (7) is opened on the upper surface of the feeding box (3). A feeding channel (8) is fixedly connected to the upper end of the feeding port (7). A feeding rod (8) is fixedly installed at the end of the driving end of the stirring motor (4) away from the stirring motor (4). A stirring rod (9) is fixedly connected to a spiral blade (10) on its outer surface. A fixing rod (11) is fixedly connected to both ends of the spiral blade (10). A cylindrical screen (12) is sleeved on the outer surface of the spiral blade (10). The cylindrical screen (12) is fixedly connected to the mixer body (1). A cylindrical receiving box (13) is fixedly installed at one end of the cylindrical screen (12). A discharge hole (14) is opened at the bottom of the cylindrical receiving box (13). A discharge channel (15) is fixedly connected to the bottom of the discharge hole (14). A collection box (16) is movably installed at the bottom of the discharge channel (15). A collection box (17) is movably installed inside the collection box (16).
2. The powder mixing and screening device according to claim 1, characterized in that: A vibration groove (18) is provided on one side of the mixer body (1). A vibration plate (19) is fixedly installed inside the vibration groove (18). The vibration plate (19) is adapted to the vibration groove (18). A vibration motor (20) is fixedly installed on the lower surface of the vibration plate (19). A flexible plate (21) is fixedly connected to the upper surface of the vibration plate (19). One end of the flexible plate (21) is fixedly connected to the feeding box (3).
3. The powder stirring and screening device according to claim 2, characterized in that: The bottom of the mixer body (1) is provided with a bottom screening hole (22), and grooves (23) are provided on both sides of the bottom screening hole (22). A bottom screen (24) is fixedly installed inside the groove (23). The bottom screen (24) is adapted to the groove (23). One end of the bottom screen (24) is fixedly connected to the vibrating plate (19). A discharge channel two (25) is fixedly connected to the bottom of the bottom screening hole (22). A collection box two (26) is fixedly installed at the bottom of the discharge channel two (25). A collection box two (27) is movably installed inside the collection box two (26).
4. The powder stirring and screening device according to claim 3, characterized in that: The left side of the mixer body (1) is fixedly installed with a discharge channel three (28), the bottom of the discharge channel three (28) is fixedly installed with a collection box three (29), and the inside of the collection box three (29) is movably installed with a collection box three (30).