Mixing equipment for plastic particle drying machine
By designing spiral blades and conveying augers in the mixing equipment, combined with electric heating rods and honeycomb structure, the problem of plastic particles accumulating in the drying equipment was solved, achieving a more efficient and uniform drying effect.
Patent Information
- Application Number
- CN202520246941.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-17
AI Technical Summary
In traditional drying methods, plastic granules tend to accumulate in the drying equipment, preventing sufficient heat contact and resulting in low drying efficiency and poor performance.
Design a mixing device comprising a mixing box, a mixing cylinder, spiral blades, a conveying auger, and an electric heating rod. Through the cooperation of the spiral blades and the conveying auger, uniform mixing and heating of plastic particles are achieved, and the honeycomb structure is used to improve the uniformity of heat distribution.
It improves the drying efficiency and uniformity of plastic granules, ensuring sufficient heat contact and even distribution, thus enhancing the drying effect.
Smart Images
Figure CN223834854U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic granule processing technology, specifically to a mixing device for use in a plastic granule dryer. Background Technology
[0002] Plastic granules are a type of granular plastic, typically classified into over 200 types, with further subdivisions reaching thousands. These include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, and polyurethane. They are primarily used to manufacture various plastic bags, buckets, basins, toys, furniture, stationery, and other household items and plastic products. Plastic granules have wide applications in packaging, automotive, electronics, medical, construction, agriculture, and many other fields, serving as a fundamental raw material for countless products. Because plastic granules readily absorb moisture, which can affect processing quality, they must be dried to remove moisture before thermoplastic processing.
[0003] Traditional drying methods often involve directly feeding plastic granules into drying equipment for heating and drying. However, plastic granules tend to clump together in the drying equipment, preventing sufficient heat contact with them and resulting in low drying efficiency and poor drying effect.
[0004] To address the aforementioned problems, we propose a mixing device for use in plastic pellet dryers. Utility Model Content
[0005] To address the problems in the background art, this utility model provides a mixing device for a plastic granule dryer.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A mixing device for a plastic granule dryer includes a mixing chamber, the inner wall of which is equipped with multiple sets of heating plates, a mixing component is provided in the middle of the inner side of the mixing chamber, and conveying components are provided at both ends of the inner side of the mixing chamber.
[0008] The mixing assembly includes a mixing cylinder, which is fixedly installed on the upper inner side of the mixing chamber. An electric heating rod is fixedly installed in the middle inner side of the mixing cylinder, and spiral blades are spirally installed on the outer surface of the electric heating rod. The mixing assembly also includes a mixing basket, which is installed at the bottom inner side of the mixing chamber and located at the middle of the bottom end of the mixing cylinder. Multiple sets of drainage holes are opened around the bottom of the mixing basket. A turntable is movably installed on the bottom inner side of the mixing basket, and a first motor is provided at the middle of the bottom end of the turntable. The first motor is fixedly installed on the bottom inner side of the mixing chamber.
[0009] Preferably, the mixing box is provided with a collection hopper at both ends of its inner side, the collection hopper is located on both sides of the bottom end of the mixing cylinder, the conveying assembly is located in the middle of the inner side of the collection hopper, and the conveying assembly includes a conveying auger, the conveying auger is located in the middle of the inner side of the collection hopper.
[0010] Preferably, the conveying assembly further includes a conveying cylinder, which is installed at both ends of the mixing cylinder and located at the upper middle part of the collecting hopper. The conveying auger is movably installed in the middle of the inner side of the conveying cylinder. A second motor is provided on the top of the conveying auger. The second motor is fixedly installed on both sides of the top of the mixing box. The second motor is used to drive the conveying auger.
[0011] Preferably, one side of the top end of the conveying cylinder is connected to the mixing cylinder via a conveying pipe, and the conveying pipe is configured as an inclined structure.
[0012] Preferably, a discharge pipe is provided at the bottom center of both sets of collection hoppers, and the two sets of discharge pipes are respectively installed on both sides of the bottom of the mixing box, and a solenoid valve is provided at the inlet end of the discharge pipe.
[0013] Preferably, a feed hopper is provided at the upper middle part of the mixing tank, and the feed hopper is located at the upper middle part of the mixing cylinder.
[0014] Preferably, the top of the electric heating rod is provided with a fixing frame, which is used to fix the electric heating rod in the middle of the inner side of the mixing cylinder.
[0015] Preferably, the walls of both the mixing cylinder and the conveying cylinder are configured with a fine honeycomb pore structure.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] In this solution, a mixing cylinder is provided, and a spiral blade is provided in the middle of the inner side of the mixing cylinder. Conveying augers are provided in the middle of both ends of the mixing cylinder. The plastic particles at the bottom can be transported back to the top of the mixing cylinder by the conveying augers. Then, the spiral blades roll and discharge the material. Finally, the plastic particles fall into the mixing basket for mixing again, thereby enhancing the uniformity and efficiency of mixing various plastic particles.
[0018] In this solution, an electric heating rod is installed in the middle of the inner side of the mixing drum. The installation of the electric heating rod can increase the temperature of the mixing drum and the spiral blades. When the plastic granules roll on the spiral blades, the drying speed and uniformity of the plastic granules can be effectively improved. At the same time, during the drying process, the heating plate can enhance the temperature of the entire mixing chamber. The walls of the mixing drum and the conveying drum are both designed with a fine honeycomb structure, which allows external heat to enter the interior of the mixing drum and the conveying drum, improving the uniformity of temperature distribution. Then, the plastic granules are rolled and conveyed by the conveying auger, and the plastic granules are rolled and discharged from the spiral blades. Through the above process, the drying efficiency and uniformity of the plastic granules can be enhanced. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the mixing basket in this utility model.
[0021] In the diagram: 1. Mixing box; 2. Heating plate; 3. Feed hopper; 4. Mixing cylinder; 5. Fixing frame; 6. Electric heating rod; 7. Spiral blade; 8. Mixing basket; 9. Leakage hole; 10. Turntable; 11. First motor; 12. Collection hopper; 13. Discharge pipe; 14. Solenoid valve; 15. Conveying cylinder; 16. Conveying auger; 17. Second motor; 18. Conveying pipe. Detailed Implementation
[0022] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:
[0023] Example: Refer to Figure 1 - Figure 2 As shown, a mixing device for a plastic granule dryer according to this embodiment includes a mixing chamber 1, a plurality of heating plates 2 installed on the inner wall of the mixing chamber 1, a mixing component provided in the middle of the inner side of the mixing chamber 1, and conveying components provided at both ends of the inner side of the mixing chamber 1.
[0024] The mixing assembly includes a mixing cylinder 4, which is fixedly installed on the upper inner side of the mixing chamber 1. An electric heating rod 6 is fixedly installed in the middle of the inner side of the mixing cylinder 4. Spiral blades 7 are spirally installed on the outer surface of the electric heating rod 6. Heating by the electric heating rod 6 can increase the temperature of the mixing cylinder 4 and the spiral blades 7. When the plastic particles are rolled and fed on the spiral blades 7, the plastic particles are heated and dried. At the same time, when multiple plastic particles are rolled and fed on the spiral blades 7, they can be initially mixed.
[0025] The mixing assembly also includes a mixing basket 8, which is installed on the inner bottom of the mixing box 1 and located at the bottom center of the mixing cylinder 4. Multiple sets of drainage holes 9 are opened around the bottom of the mixing basket 8. A turntable 10 is movably installed on the inner bottom of the mixing basket 8. A first motor 11 is provided at the bottom center of the turntable 10. The first motor 11 is fixedly installed on the inner bottom of the mixing box 1. Various plastic particles can be mixed when they fall onto the turntable 10. Then, the turntable 10 is driven by the first motor 11 to rotate, thereby scattering the plastic particles in all directions.
[0026] The mixing box 1 has two collection hoppers 12 at its inner ends. The collection hoppers 12 are located on both sides of the bottom end of the mixing cylinder 4. The conveying assembly is located in the middle of the inner side of the collection hoppers 12. The conveying assembly includes a conveying auger 16, which is located in the middle of the inner side of the collection hoppers 12. The conveying assembly also includes a conveying cylinder 15, which is installed at both ends of the mixing cylinder 4 and located in the middle of the upper end of the collection hoppers 12. The conveying auger 16 is movably installed in the middle of the inner side of the conveying cylinder 15. A second motor 17 is installed on the top of the conveying auger 16. The second motor 17 is fixedly installed on both sides of the top of the mixing box 1 and is used to drive the conveying auger 16.
[0027] The plastic granules in the collection hopper 12 can be transported to the top of the inner side of the mixing box 1 by the conveying auger 16, and then put back into the mixing drum 4 for mixing and heating drying through the conveying pipe 18.
[0028] The top end of the conveying cylinder 15 is connected to the mixing cylinder 4 through the conveying pipe 18, which is set as an inclined structure.
[0029] In some examples, discharge pipes 13 are provided at the bottom center of both sets of collection hoppers 12. The two sets of discharge pipes 13 are respectively installed on both sides of the bottom of the mixing box 1, and a solenoid valve 14 is provided at the inlet end of the discharge pipe 13.
[0030] In some examples, a feed hopper 3 is provided at the upper middle part of the mixing tank 1, and the feed hopper 3 is located at the upper middle part of the mixing cylinder 4.
[0031] In some examples, the top of the electric heating rod 6 is provided with a fixing bracket 5, which is used to fix the electric heating rod 6 in the middle of the inner side of the mixing cylinder 4.
[0032] In some examples, the walls of both the mixing cylinder 4 and the conveying cylinder 15 are designed with a fine honeycomb structure to facilitate the flow of hot air, thereby achieving the heating and drying of plastic granules.
[0033] The working principle of this utility model is as follows:
[0034] During use, plastic granules are fed into the mixing chamber 1 through the feed hopper 3. After passing through the feed hopper 3, the plastic granules first enter the mixing cylinder 4, and then roll out along the spiral blades 7 until they finally fall into the mixing basket 8 at the bottom for mixing.
[0035] At this time, the turntable 10 located at the bottom of the mixing basket 8 rotates under the drive of the first motor 11, thereby generating centrifugal force, causing the plastic particles on the turntable 10 to be scattered in all directions and fall into the collection hoppers 12 on both sides. Then, the plastic particles are transported back to a higher position by the conveying auger 16, and then returned to the top of the spiral blade 7 through the conveying pipe 18 for re-mixing and discharge.
[0036] By repeating the above steps multiple times, the plastic granules can be mixed evenly.
[0037] In addition, the electric heating rod 6 can increase the temperature of the mixing drum 4 and the spiral blade 7. When the plastic particles roll on the spiral blade 7 inside the mixing drum 4, the drying speed and uniformity of the plastic particles can be effectively improved.
[0038] During the drying process, the heating plate 2 can enhance the temperature of the entire mixing chamber 1, while the walls of the mixing cylinder 4 and the conveying cylinder 15 are both designed with a fine honeycomb structure, allowing external heat to enter the interior of the mixing cylinder 4 and the conveying cylinder 15, improving the uniformity of temperature distribution. Then, the plastic granules are driven to roll and be conveyed by the conveying auger 16, and the plastic granules are rolled and discharged from the spiral blades 7, which can enhance the efficiency and uniformity of drying the plastic granules.
[0039] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A mixing device for a plastic granule dryer, characterized in that, Includes a mixing box (1), the inner wall of which is equipped with multiple sets of heating plates (2), a mixing component is provided in the middle of the inner side of the mixing box (1), and a conveying component is provided at both ends of the inner side of the mixing box (1); The mixing assembly includes a mixing cylinder (4), which is fixedly installed on the upper inner side of the mixing box (1). An electric heating rod (6) is fixedly installed in the middle inner side of the mixing cylinder (4), and a spiral blade (7) is spirally installed on the outer surface of the electric heating rod (6). The mixing assembly also includes a mixing basket (8), which is installed on the inner bottom of the mixing box (1) and located at the bottom center of the mixing cylinder (4). Multiple sets of leakage holes (9) are opened around the bottom of the mixing basket (8). A turntable (10) is movably installed on the inner bottom of the mixing basket (8). A first motor (11) is provided at the bottom center of the turntable (10). The first motor (11) is fixedly installed on the inner bottom of the mixing box (1). The mixing box (1) is provided with a collection hopper (12) at both ends of its inner side. The collection hopper (12) is located on both sides of the bottom end of the mixing cylinder (4). The conveying assembly is located in the middle of the inner side of the collection hopper (12). The conveying assembly includes a conveying auger (16), which is located in the middle of the inner side of the collection hopper (12).
2. The mixing equipment for a plastic granule dryer according to claim 1, characterized in that, The conveying assembly also includes a conveying cylinder (15), which is installed at both ends of the mixing cylinder (4) and located at the upper middle of the collecting hopper (12). The conveying auger (16) is movably installed in the middle of the inner side of the conveying cylinder (15). A second motor (17) is provided on the top of the conveying auger (16). The second motor (17) is fixedly installed on both sides of the top of the mixing box (1). The second motor (17) is used to drive the conveying auger (16).
3. A mixing device for a plastic granule dryer according to claim 2, characterized in that, The top side of the conveying cylinder (15) is connected to the mixing cylinder (4) through the conveying pipe (18), and the conveying pipe (18) is set as an inclined structure.
4. A mixing device for a plastic granule dryer according to claim 3, characterized in that, Both sets of the collection hoppers (12) are provided with discharge pipes (13) at the bottom center. The two sets of discharge pipes (13) are respectively installed on both sides of the bottom of the mixing box (1). The inlet end of the discharge pipe (13) is provided with a solenoid valve (14).
5. A mixing device for a plastic granule dryer according to claim 4, characterized in that, The mixing tank (1) is provided with a feeding hopper (3) at the upper middle part, and the feeding hopper (3) is located at the upper middle part of the mixing cylinder (4).
6. A mixing device for a plastic granule dryer according to claim 5, characterized in that, The top of the electric heating rod (6) is provided with a fixing frame (5), which is used to fix the electric heating rod (6) in the middle of the inner side of the mixing cylinder (4).
7. A mixing device for a plastic granule dryer according to claim 6, characterized in that, The walls of both the mixing cylinder (4) and the conveying cylinder (15) are configured with a fine honeycomb structure.