Granulator with drying structure
By integrating a drying structure into the granulator, the combination of hot air and stirring blades solves the problem of the need for separate drying in traditional granulators, achieving efficient and low-cost granulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional pellet mills require a separate drying step after pelleting, which increases production costs and may lead to pellet quality contamination.
A granulator with an integrated drying structure was designed, which achieves automated and rapid drying of granules through a combination of hot air drying and stirring blades.
This technology enables automated and efficient drying of granules, reducing production costs and improving granule quality.
Smart Images

Figure CN223988447U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of granulators, and more particularly to a granulator having a drying structure. Background Technology
[0002] Traditional granulators typically require a separate drying step after pellet formation to remove moisture or solvents. This not only increases production costs but can also affect pellet quality due to contamination during transport. Therefore, there is a pressing market need for a granulator that integrates drying functionality to achieve a unified operation of pellet preparation and drying. Utility Model Content
[0003] To address the issue that traditional granulators typically require a separate drying step after pelletizing to remove moisture or solvents from the pellets, which not only increases production costs but may also affect pellet quality due to contamination during transport, this application provides a granulator with a drying structure.
[0004] The granulator with a drying structure provided in this application adopts the following technical solution:
[0005] A granulator with a drying structure includes an extrusion pipe, an output end face of which is provided with a template, the template is connected to a discharge chute, the discharge chute is connected to a second feed hopper, the second feed hopper is connected to a drying pipe, the drying pipe has a round rod inside, both ends of which are fitted with first collars, the outer wall of the first collars is connected to a ring pipe via a support rod, five circumferentially equidistant branch pipes are provided between two of the ring pipes, the outer wall of the branch pipes is provided with multiple equidistant air outlet pipes, multiple equidistant stirring blades are fitted between two of the first collars and the outer wall of the round rod, one end of the round rod passes through the drying pipe and extends outward to be connected to the output end of a second motor.
[0006] Preferably, the outer wall of the drying tube is provided with a discharge port, and the discharge port is hinged with a cover plate inside.
[0007] Preferably, the extrusion tube is provided with a rotating rod inside, and a conveying auger is wound around the outer wall of the rotating rod. One end of the rotating rod passes through the extrusion tube and extends outward to be connected to the output end of a first motor. The outer wall of the extrusion tube is provided with a first feed hopper.
[0008] Preferably, the outer wall of the template is provided with a plurality of circumferentially distributed discharge holes.
[0009] Preferably, an air inlet pipe is provided through the outer wall of the drying tube, and the air inlet pipe, the ring pipe, the branch pipe and the air outlet pipe are connected.
[0010] Preferably, the outer walls of the extrusion tube and the drying tube are respectively provided with two first support plates and two second support plates.
[0011] In summary, this application includes the following beneficial technical effects:
[0012] Hot air is delivered into the branch pipe through the inlet pipe, then into each branch pipe through the ring pipe, and finally discharged through the outlet pipe. Under the action of hot air, the raw material particles in the drying tube are dried. The dried particles are discharged through the outlet. During the particle drying process, the output end of the second motor drives the round rod to rotate. The rotation of the round rod drives the stirring blade to rotate. The rotation of the stirring blade can stir the particles in the drying tube, thereby accelerating the particle drying speed and realizing automated operation and the preparation of high-quality particle products. Attached Figure Description
[0013] Figure 1 This is a structural front view of an embodiment of the application;
[0014] Figure 2 This is a cross-sectional view of the extrusion tube in the embodiment of the application;
[0015] Figure 3 This is a cross-sectional view of the drying tube in the embodiment of the application.
[0016] Explanation of reference numerals in the attached drawings: 1. Extrusion pipe; 2. First feed hopper; 3. First motor; 4. First support plate; 5. Template; 6. Discharge hole; 7. Discharge trough; 8. Drying pipe; 9. Second feed hopper; 10. Air inlet pipe; 11. Second motor; 12. Second support plate; 13. Rotating rod; 14. Conveying auger; 15. First collar; 16. Ring pipe; 17. Branch pipe; 18. Air outlet pipe; 19. Round rod; 20. Agitating blade; 21. Discharge port; 22. Cover plate. Detailed Implementation
[0017] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0018] This application discloses a granulator with a drying structure, as shown in the embodiments below. Figures 1-2The system includes an extrusion pipe 1, with a template 5 fixedly mounted on the output end face of the extrusion pipe 1. The outer wall of the template 5 is provided with multiple circumferentially distributed discharge holes 6. The template 5 is fixedly connected to a discharge trough 7, which is connected to a second feed hopper 9. The second feed hopper 9 is fixedly connected to a drying pipe 8. The extrusion pipe 1 has a rotating rod 13 inside, with a conveying auger 14 fixedly wound around the outer wall of the rotating rod 13. One end of the rotating rod 13 passes through the extrusion pipe 1 and extends outward to connect to the output end of a first motor 3. The outer wall of the extrusion pipe 1 is fixedly provided with a first feed hopper 2. The raw material enters the interior of the extrusion pipe 1 through the first feed hopper 2 and is mixed and extruded under the action of the conveying auger 14. The extruded raw material is formed into granules through the discharge holes 6 and enters the interior of the second feed hopper 9 through the discharge trough 7.
[0019] Reference Figure 1 and Figure 3 The drying tube 8 has a rotating cylindrical rod 19 inside. Both ends of the cylindrical rod 19 are fitted with first rings 15 via bearings. The first rings 15 are fixedly connected to the inner wall of the drying tube 8. The outer wall of the first rings 15 is fixedly connected to a ring tube 16 via a support rod. Five circumferentially distributed branch pipes 17 are fixedly arranged between two ring tubes 16. Multiple equidistant air outlet pipes 18 are fixedly arranged on the outer wall of the branch pipes 17. Multiple equidistant stirring blades 20 are fixedly fitted between two first rings 15 and on the outer wall of the cylindrical rod 19. One end of the cylindrical rod 19 passes through the drying tube 8 and extends outward to connect to the output end of a second motor 11. A discharge port 21 is provided through the outer wall of the drying tube 8. A cover plate 22 is hinged inside the discharge port 21. An air inlet pipe 10 is fixedly inserted through the outer wall of the drying tube 8. The ring pipe 16, branch pipe 17 and air outlet pipe 18 are connected. The outer walls of the extrusion pipe 1 and the drying pipe 8 are respectively fixed with two first support plates 4 and two second support plates 12. Hot air is delivered to the inside of the branch pipe 17 through the air inlet pipe 10, and then to the inside of each branch pipe 17 through the ring pipe 16. Finally, it is discharged through the air outlet pipe 18. Under the action of hot air, the raw material particles in the drying pipe 8 are dried. The dried particles are discharged through the discharge port 21. During the particle drying process, the output end of the second motor 11 drives the round rod 19 to rotate. The rotation of the round rod 19 drives the stirring blade 20 to rotate. The rotation of the stirring blade 20 can stir the particles in the drying pipe 8, thereby accelerating the particle drying speed to achieve automated operation and the preparation of high-quality particle products.
[0020] The implementation principle of a granulator with a drying structure according to an embodiment of this application is as follows: During use, the raw material enters the interior of the extrusion pipe 1 through the first feed hopper 2, and is mixed and extruded under the action of the conveying auger 14. The extruded raw material is formed into granules through the discharge hole 6 and enters the interior of the second feed hopper 9 through the discharge trough 7. Then, hot air is conveyed to the interior of the branch pipe 17 through the air inlet pipe 10, and then conveyed to the interior of each branch pipe 17 through the ring pipe 16. Finally, it is discharged through the air outlet pipe 18. Under the action of hot air, the raw material granules in the drying pipe 8 are dried. The dried granules are discharged through the discharge port 21. During the granule drying process, the output end of the second motor 11 drives the round rod 19 to rotate. The rotation of the round rod 19 drives the stirring blade 20 to rotate. The rotation of the stirring blade 20 can stir the granules in the drying pipe 8, thereby accelerating the granule drying speed.
[0021] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0022] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0023] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[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 pelletizer with dry structure comprising an extrusion pipe (1), characterized in that: The output end face of the extruding pipe (1) is provided with a die plate (5), the die plate (5) is connected with a discharging chute (7), the discharging chute (7) is connected with a second feeding hopper (9), the second feeding hopper (9) is connected with a drying pipe (8), the inside of the drying pipe (8) is provided with a round rod (19), the both ends of the round rod (19) are both sleeved with a first collar (15), the outer wall of the first collar (15) is connected with a ring pipe (16) through a supporting rod, five circumferentially equidistantly distributed supporting pipes (17) are arranged between the two ring pipes (16), the outer wall of the supporting pipe (17) is provided with a plurality of equidistantly distributed air outlet pipes (18), a plurality of equidistantly distributed stirring blades (20) are sleeved on the outer wall of the round rod (19) between the two first collars (15), and one end of the round rod (19) penetrates the drying pipe (8) and outwardly extends to be connected with the output end of a second motor (11).
2. A prilling machine with a dry structure according to claim 1, characterized in that: The outer wall of the drying pipe (8) is provided with a discharging port (21) penetratingly arranged therein, and the inside of the discharging port (21) is hingedly connected with a cover plate (22).
3. A prilling machine with a dry structure according to claim 1, characterized in that: The inside of the extruding pipe (1) is provided with a rotating rod (13), the outer wall of the rotating rod (13) is wound with a conveying auger (14), one end of the rotating rod (13) penetrates the extruding pipe (1) and outwardly extends to be connected with the output end of a first motor (3), and the outer wall of the extruding pipe (1) is provided with a first feeding hopper (2).
4. A prilling machine with a dry structure according to claim 1, characterized in that: The outer wall of the die plate (5) is provided with a plurality of circumferentially equidistantly distributed discharging holes (6) penetratingly arranged therein.
5. A prilling machine with a dry structure according to claim 1, characterized in that: The outer wall of the drying pipe (8) is provided with an air inlet pipe (10) penetratingly arranged therein, and the air inlet pipe (10), the ring pipe (16), the supporting pipe (17) and the air outlet pipe (18) are in communication.
6. A prilling machine with a dry structure according to claim 1, characterized in that: The outer walls of the extruding pipe (1) and the drying pipe (8) are respectively provided with two first supporting plates (4) and two second supporting plates (12).