A discharge mechanism for a double cone rotary vacuum dryer

Abstract

This application relates to the technical field of double cone rotary vacuum dryers, and in particular to a discharge mechanism for a double cone rotary vacuum dryer, comprising a tank and a support frame. The tank is rotatably mounted on the support frame. An inlet and an outlet are respectively provided at both ends of the tank. A discharge cylinder is installed on the outlet, and a cover plate is provided on the discharge cylinder. An annular frame is provided inside the discharge cylinder. This invention, by providing an annular frame with a material-pushing plate inside the discharge cylinder, combined with a material-removing assembly consisting of a vertical rod and a spiral plate, and utilizing a drive assembly consisting of worm gear teeth and a worm, can drive the annular frame to rotate around the axis of the discharge cylinder. During rotation, the evenly distributed material-pushing plate can agitate and disperse the material in the discharge cylinder, while the spiral plate can guide and push the material along the discharge direction, effectively breaking the predicament of material easily "bridging," "arching," or locally accumulating in traditional equipment, and avoiding blockage of the discharge channel.

Description

Technical Field

[0001] This application relates to the technical field of double cone rotary vacuum dryers, and in particular to a discharge mechanism for a double cone rotary vacuum dryer. Background Technology

[0002] With its core advantages of preventing material oxidation and deterioration under vacuum and achieving uniform mixing and efficient drying through double cone rotation, the double cone rotary vacuum dryer is widely used in pharmaceuticals, fine chemicals, food processing, and new materials. It is especially suitable for processing powdery, granular, heat-sensitive, or moisture-absorbing materials, and is a key piece of equipment to ensure the drying quality and production continuity of such materials.

[0003] A search revealed that Chinese Patent Publication No. CN219869027U discloses a discharge mechanism for a double-cone rotary vacuum dryer, comprising two opposing frames, with a rotary tank rotatably connected between the two frames. The top of the rotary tank has a discharge port, and the top of the discharge port is provided with a sealing cap.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: some existing equipment lacks an effective material guiding structure, and the dried material is prone to "bridging," "arching," or local accumulation in the discharge cylinder, leading to blockage of the discharge channel. This requires manual assistance with tools to clear the blockage, which not only prolongs the single production cycle and reduces equipment utilization but also increases the labor intensity of operators. At the same time, manual intervention can easily damage the sealed environment of the equipment, further exacerbating the risk of material contamination and posing operational safety hazards. Utility Model Content

[0005] In order to efficiently solve the problem of material blockage, shorten the production cycle and reduce labor intensity, this application provides a discharge mechanism for a double cone rotary vacuum dryer.

[0006] The present application provides a discharge mechanism for a double cone rotary vacuum dryer, which adopts the following technical solution: it includes a tank and a support frame. The tank is rotatably mounted on the support frame. The two ends of the tank are respectively provided with a feed port and a discharge port. A discharge cylinder is installed on the discharge port. A cover plate is provided on the discharge cylinder. An annular frame is provided inside the discharge cylinder. A material unloading component is installed on the annular frame. A drive component is provided between the annular frame and the discharge cylinder.

[0007] Optionally, the unloading assembly includes multiple material guide plates, which are evenly distributed around the axis of the discharge cylinder.

[0008] Optionally, the material feeding plates are provided in even numbers, wherein a connecting plate is provided between two opposite material feeding plates, the connecting plate is connected to the material feeding plates by a first fixing member, a vertical rod is provided on the connecting plate, and the vertical rod is connected to the connecting plate by a second fixing member.

[0009] Optionally, one end of the vertical rod is connected to the middle of the connecting plate, and the other end of the vertical rod is equipped with a spiral plate.

[0010] Optionally, the drive assembly includes worm gear teeth, and multiple worm gear teeth are provided. The multiple worm gear teeth are evenly distributed on the outer ring of the annular frame. A worm is engaged on one side of each worm gear tooth, and the worm is rotatably mounted on the discharge cylinder via a drive rod.

[0011] Optionally, the discharge cylinder is provided with a groove and a cavity, the groove and the cavity are in communication, the annular frame is rotatably connected to the groove, a sealing ring is provided between the annular frame and the groove, and the worm gear is disposed inside the cavity.

[0012] Optionally, the first fixing member includes a fixing bolt and a nut, one end of the fixing bolt passes through the material feeding plate and the connecting plate, and the fixing bolt is threadedly connected to the nut. The second fixing member has the same structure as the first fixing member.

[0013] In summary, this application includes the following beneficial technical effects: 1. This utility model features an annular frame with a material-pushing plate installed inside the discharge cylinder, combined with a material unloading assembly consisting of a vertical rod and a spiral plate. A drive assembly composed of worm gear teeth and a worm drives the annular frame to rotate around the discharge cylinder axis. During rotation, the evenly distributed material-pushing plates agitate and disperse the material within the discharge cylinder, while the spiral plate guides and pushes the material along the discharge direction. This effectively overcomes the difficulties of material bridging, arching, or localized accumulation in traditional equipment, preventing blockages in the discharge channel. No manual assistance with tools is required for unblocking, significantly shortening the single production cycle, improving equipment utilization, greatly reducing the labor intensity of operators, and ensuring continuous production.

[0014] 2. A sealing ring is provided between the annular frame and the groove of the discharge cylinder in this utility model, which can enhance the sealing performance of the discharge mechanism and prevent external impurities from entering or internal materials from leaking. The drive component drives the unloading component to automatically complete the material guidance and discharge, reducing the frequency of manual intervention in the operation of the equipment and avoiding the problem of damaging the sealed environment of the equipment when manually clearing. This not only effectively reduces the risk of contamination of the dried material, but also eliminates the potential safety hazards that may exist in the manual operation process, and improves the safety and reliability of the equipment operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a cross-sectional view of the discharge cylinder in an embodiment of this application; Figure 3 This is an embodiment of the present application. Figure 2 Enlarged view of point A in the middle; Figure 4 This is a front view of an embodiment of this application.

[0016] Reference numerals in the attached drawings: 1. Tank body; 2. Support frame; 3. Inlet; 4. Outlet; 5. Outlet cylinder; 6. Groove; 7. Cavity; 8. Ring frame; 9. Feeding plate; 10. Worm gear; 11. Worm; 12. Drive rod; 13. Sealing ring; 14. Cover plate; 15. Connecting plate; 16. Vertical rod; 17. Spiral plate; 18. Fixing bolt; 19. Nut. Detailed Implementation

[0017] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0018] This application discloses a discharge mechanism for a double-cone rotary vacuum dryer. For example... Figure 1 , Figure 2 , Figure 4 As shown, the device includes a tank body 1 and a support frame 2. The tank body 1 is rotatably mounted on the support frame 2. The two ends of the tank body 1 are respectively provided with a feed port 3 and a discharge port 4. A discharge cylinder 5 is installed on the discharge port 4. The discharge cylinder 5 is connected by a quick-opening flange. A cover plate 14 is provided on the discharge cylinder 5. An annular frame 8 is provided on the inner side of the discharge cylinder 5. A material ejection assembly is installed on the annular frame 8. The material ejection assembly includes a material ejector plate 9. Multiple material ejector plates 9 are provided and are evenly distributed around the axis of the discharge cylinder 5.

[0019] See Figure 2 , Figure 3 As shown, the material feeding plates 9 are arranged in pairs, with a connecting plate 15 between two opposite material feeding plates 9. The connecting plate 15 is connected to the material feeding plates 9 by a first fixing member. A vertical rod 16 is provided on the connecting plate 15. One end of the vertical rod 16 is connected to the middle of the connecting plate 15, and a spiral plate 17 is installed on the other end of the vertical rod 16. The vertical rod 16 is connected to the connecting plate 15 by a second fixing member. The first fixing member includes a fixing bolt 18 and a nut 19.

[0020] In this embodiment, one end of the fixing bolt 18 passes through the feeding plate 9 and the connecting plate 15. The fixing bolt 18 is threadedly connected to the nut 19. The second fixing member has the same structure as the first fixing member. A driving assembly is provided between the ring frame 8 and the discharge cylinder 5. The driving assembly includes worm gear teeth 10. Multiple worm gear teeth 10 are provided. Multiple worm gear teeth 10 are evenly distributed on the outer ring of the ring frame 8. A worm 11 is meshed on one side of the worm gear teeth 10. The worm 11 is rotatably mounted on the discharge cylinder 5 through the driving rod 12.

[0021] In this embodiment, a magnetic fluid sealing device is used at the penetration point between the drive rod 12 and the discharge cylinder 5, which not only ensures the flexible rotation of the drive rod 12, but also achieves zero leakage in a vacuum environment. One end of the drive rod 12 is provided with a handle, and the other end of the drive rod 12 is provided with a variable frequency reduction motor. The variable frequency reduction motor is installed on the discharge cylinder 5, and the handle and the variable frequency reduction motor do not affect each other.

[0022] In this embodiment, the discharge cylinder 5 is provided with a groove 6 and a cavity 7, the groove 6 and the cavity 7 are connected, the annular frame 8 is rotatably connected to the groove 6, and a sealing ring 13 is provided between the annular frame 8 and the groove 6. The sealing ring 13 is made of fluororubber, and the worm gear 11 is located inside the cavity 7.

[0023] The implementation principle of the discharge mechanism of the double cone rotary vacuum dryer in this application embodiment is as follows: After the material is dried in the tank 1 of the double cone rotary vacuum dryer, the tank 1 is driven to rotate around the axis of the support frame 2 through the rotational cooperation between the tank 1 and the support frame 2, and the discharge port 4 at one end of the tank 1 is adjusted to the downward working angle to ensure that the dried material can gather towards the discharge port 4 under the action of gravity; then the cover plate 14 on the discharge cylinder 5 is opened to expose the complete discharge channel; If the material is prone to forming "bridging", "arching" or local accumulation in the discharge cylinder 5 due to the adhesion between powders or particles, the drive rod 12 is driven to rotate by an external power source. The drive rod 12 synchronously drives the worm gear 11 connected to it to rotate. The worm gear 11 meshes with the worm wheel teeth 10 evenly distributed on the outer ring of the ring frame 8. The rotational force of the worm gear 11 is converted into the circumferential motion of the ring frame 8, so that the ring frame 8 rotates smoothly around the axis of the discharge cylinder 5 in the groove 6 of the discharge cylinder 5. During this process, the sealing ring 13 between the ring frame 8 and the groove 6 continues to play a role, which not only ensures the smooth rotation of the ring frame 8, but also allows multiple material-pulling plates 9 to rotate with the ring frame 8, performing high-frequency agitation and dispersion on the material collected in the discharge cylinder 5, directly breaking the "bridging" or "arching" structure that has been formed or is about to form, and avoiding local accumulation. At the same time, the connecting plate 15 rotates synchronously with the material-pushing plate 9. The connecting plate 15 drives the vertical rod (16) to rotate accordingly. The spiral plate 17 at the end of the vertical rod 16 forms a continuous guiding and pushing force along the discharge direction, which pushes the material dispersed by the material-pushing plate 9 smoothly and orderly toward the discharge port 4, ensuring that the material is discharged smoothly along the discharge cylinder 5, and completely solving the discharge blockage problem of traditional equipment. After all the dried material in tank 1 is discharged through outlet 4, the external power source is stopped first, so that drive rod 12, worm gear 11, ring frame 8 and unloading assembly stop moving in sequence; then the cover plate 14 on the discharge cylinder 5 is closed to seal the discharge channel and complete a single discharge operation.

[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A discharge mechanism for a double-cone rotary vacuum dryer, comprising a tank (1) and a support frame (2), characterized in that: The tank (1) is rotatably mounted on the support frame (2). The two ends of the tank (1) are respectively provided with a feed port (3) and a discharge port (4). A discharge cylinder (5) is installed on the discharge port (4). A cover plate (14) is provided on the discharge cylinder (5). An annular frame (8) is provided inside the discharge cylinder (5). A material return assembly is installed on the annular frame (8). A drive assembly is provided between the annular frame (8) and the discharge cylinder (5).

2. The discharge mechanism of a double-cone rotary vacuum dryer according to claim 1, characterized in that: The unloading assembly includes a material feeding plate (9), and multiple material feeding plates (9) are provided, which are evenly distributed around the axis of the discharge cylinder (5).

3. The discharge mechanism of a double-cone rotary vacuum dryer according to claim 2, characterized in that: The material feeding plates (9) are set in pairs, and a connecting plate (15) is provided between two opposite material feeding plates (9). The connecting plate (15) is connected to the material feeding plates (9) by a first fixing member. A vertical rod (16) is provided on the connecting plate (15), and the vertical rod (16) is connected to the connecting plate (15) by a second fixing member.

4. The discharge mechanism of a double-cone rotary vacuum dryer according to claim 3, characterized in that: One end of the vertical rod (16) is connected to the middle of the connecting plate (15), and the other end of the vertical rod (16) is equipped with a spiral plate (17).

5. The discharge mechanism of a double-cone rotary vacuum dryer according to claim 1, characterized in that: The drive assembly includes worm gear teeth (10), and multiple worm gear teeth (10) are provided. The multiple worm gear teeth (10) are evenly distributed on the outer ring of the ring frame (8). A worm (11) is engaged on one side of the worm gear teeth (10). The worm (11) is rotatably mounted on the discharge cylinder (5) through a drive rod (12).

6. A discharge mechanism for a double-cone rotary vacuum dryer according to claim 5, characterized in that: The discharge cylinder (5) is provided with a groove (6) and a cavity (7). The groove (6) is connected to the cavity (7). The annular frame (8) is rotatably connected to the groove (6). A sealing ring (13) is provided between the annular frame (8) and the groove (6). The worm gear (11) is located inside the cavity (7).

7. The discharge mechanism of a double-cone rotary vacuum dryer according to claim 3, characterized in that: The first fixing member includes a fixing bolt (18) and a nut (19). One end of the fixing bolt (18) passes through the material feeding plate (9) and the connecting plate (15). The fixing bolt (18) is threadedly connected to the nut (19). The second fixing member has the same structure as the first fixing member.

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