High-efficiency blower device for EVA (Ethylene Vinyl Acetate) underwater granulator
By introducing a guide platform and auger structure into the EVA underwater granulator, the problem of uneven distribution caused by granule accumulation was solved, achieving uniform granule input and heating, and improving drying efficiency and finished product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHISHI XINHUA PLASTIC MACHINERY
- Filing Date
- 2025-07-22
- Publication Date
- 2026-05-19
AI Technical Summary
The existing high-efficiency blower of the underwater EVA granulator has the problem that the granules tend to accumulate during feeding, resulting in uneven distribution and affecting the drying effect.
A high-efficiency blower device was designed, which includes a feeding structure and a conveying structure. Through the cooperation of the guide table and the auger, the uniform input and conveying of the granules is achieved, preventing accumulation. Hot air flow is provided through the fan blades and the air inlet pipe for uniform heating.
It improves the uniformity of granule input distribution and drying efficiency, ensures uniform heating and rapid conveying of granules, and enhances the quality and production stability of granulated products.
Smart Images

Figure CN224255796U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of granulator technology, specifically to a high-efficiency blower for an underwater EVA granulator. Background Technology
[0002] The high-efficiency blower unit used in EVA underwater granulators is a key auxiliary device specifically designed for the underwater granulation process of EVA materials. This unit provides a stable and efficient airflow environment inside the granulator by precisely controlling the blower volume and velocity, effectively promoting the cooling, shaping, and underwater cutting of the molten EVA material. Its high efficiency is reflected in low energy consumption, high air pressure output, and uniform airflow distribution. This not only improves the uniformity and roundness of the granulated product but also significantly reduces the product defect rate caused by unstable airflow. Simultaneously, it optimizes the heat exchange efficiency of the entire granulation system, ensuring production continuity and stability. It is a crucial technical guarantee for improving the quality and efficiency of the EVA granulation process.
[0003] Authorization announcement number CN217292996U discloses a high-efficiency blower device for an underwater EVA granulator. The technical solution is as follows: "It includes a drying chamber, in which a stirring blade is rotatably arranged within the inner cavity of the drying chamber, and a feed frame and a discharge frame are respectively installed at the opening of the outer wall of the drying chamber. A blower pipe is installed at the top opening of the drying chamber, and an air inlet channel is opened through the top of the blower pipe. A blower fan is rotatably arranged within the inner cavity of the blower pipe." The beneficial effects are: improved drying efficiency of the granules; moreover, to reduce the overall cost of the device, the movement of the stirring blade and the blower fan can be completed by a series of actions involving a single rotary motor and various rotating shafts and other components.
[0004] The above technical solution has the following drawbacks. First, there is only one feed inlet. After the granules are fed into the feed inlet, they will accumulate in one place in the drying chamber, affecting the uniformity of the granules and thus affecting the drying effect. Second, there is a lack of an effective conveying structure for the granules. It is difficult to move the granules to the discharge frame by the stirring blades. Therefore, a high-efficiency blower for EVA underwater granulators is proposed to solve the problems mentioned above. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a high-efficiency blower for an underwater EVA granulator, which has advantages such as improving the uniformity of granule input distribution. It solves the problem that existing high-efficiency blowers tend to accumulate granules during input, leading to uneven distribution and affecting the granule drying effect.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A high-efficiency blower for an underwater EVA granulator includes a drying cylinder, side plates, and a housing. The top of the drying cylinder is provided with a feeding structure, and the interior of the drying cylinder is provided with a conveying structure.
[0008] The feeding structure includes two feed pipes fixedly connected to the top of the drying cylinder, a feed box fixedly connected to the top of the feed pipes, a support platform fixedly connected inside the feed box, a guide platform fixedly connected to the top of the support platform, two support plates fixedly connected to the outer peripheral wall of the drying cylinder, a support rod fixedly connected between the support plate and the feed box, and two reinforcing rods fixedly connected to the right side of the side plate.
[0009] Furthermore, the material conveying structure includes a drive motor fixedly connected inside the housing, a connecting shaft fixedly connected to the output shaft of the drive motor, a rotating shaft fixedly connected to the right end of the connecting shaft, and an auger fixedly connected to the outer peripheral wall of the rotating shaft.
[0010] Furthermore, a mounting ring is fixedly connected to the outer peripheral wall of the connecting shaft, and two fan blades are fixedly connected to the outer peripheral wall of the mounting ring.
[0011] Furthermore, a retaining ring is fixedly connected inside the drying cylinder, and a blocking mesh is fixedly connected to the inner circumferential wall of the retaining ring. The connecting shaft is rotatably connected inside the blocking mesh.
[0012] Furthermore, an air inlet pipe is fixedly connected to the top of the drying cylinder, and a material feeding seat is fixedly connected to the bottom of the drying cylinder.
[0013] Furthermore, the guide platform is an isosceles triangle, and two feeding chambers are provided between the support platform and the feeding box, with the two feeding pipes located inside the two feeding chambers respectively.
[0014] Furthermore, the two reinforcing rods are respectively fixedly connected to the bottom of the two support plates.
[0015] Furthermore, the drying cylinder is fixedly connected to the right side of the side plate, and the box body is fixedly connected to the left side of the side plate.
[0016] Compared with the prior art, this utility model provides a high-efficiency blower for an underwater EVA granulator, which has the following beneficial effects:
[0017] This EVA underwater granulator uses a high-efficiency blower. The granules are guided left and right by the support platform and guide platform installed inside the feed box. The granules are fed into two places inside the drying cylinder through two feed pipes, which prevents the granules from accumulating and improves the uniformity of subsequent heating and drying of the granules. The rotating shaft and auger facilitate the movement of the granules to the left, making it easier to discharge the granules. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0019] Figure 2 This is a cross-sectional view of the drying cylinder of this utility model;
[0020] Figure 3 This is a schematic diagram of the right side structure of the barrier net of this utility model.
[0021] In the diagram: 1. Drying cylinder; 2. Side plate; 3. Box body; 4. Feed pipe; 5. Feed box; 6. Support platform; 7. Guide platform; 8. Support plate; 9. Support rod; 10. Reinforcing rod; 11. Drive motor; 12. Connecting shaft; 13. Rotating shaft; 14. Mounting ring; 15. Fan blade; 16. Screw; 17. Baffle ring; 18. Baffle net; 19. Discharge seat; 20. Air inlet pipe. Detailed Implementation
[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1 to 3 The high-efficiency blower for an underwater EVA granulator in this embodiment includes a drying cylinder 1, a side plate 2, and a box 3. The top of the drying cylinder 1 is provided with a feeding structure, and the inside of the drying cylinder 1 is provided with a conveying structure.
[0024] The drying cylinder 1 is fixedly connected to the right side of the side plate 2, and the box body 3 is fixedly connected to the left side of the side plate 2.
[0025] An air inlet pipe 20 is fixedly connected to the top of the drying cylinder 1, and a material feeding seat 19 is fixedly connected to the bottom of the drying cylinder 1.
[0026] In this embodiment, the feeding structure includes two feeding pipes 4 fixedly connected to the top of the drying cylinder 1. A feeding box 5 is fixedly connected to the top of the feeding pipes 4. A support platform 6 is fixedly connected inside the feeding box 5. A guide platform 7 is fixedly connected to the top of the support platform 6. The guide platform 7 is an isosceles triangle. Two feeding chambers are provided between the support platform 6 and the feeding box 5. The two feeding pipes 4 are located inside the two feeding chambers respectively. Two support plates 8 are fixedly connected to the outer peripheral wall of the drying cylinder 1. A support rod 9 is fixedly connected between the support plate 8 and the feeding box 5. Two reinforcing rods 10 are fixedly connected to the right side of the side plate 2. The two reinforcing rods 10 are fixedly connected to the bottom of the two support plates 8 respectively.
[0027] It should be noted that the guide table 7 guides the granules left and right, so that the granules are fed into the feed pipe 4 more evenly, preventing the granules from accumulating in one place in the drying cylinder 1.
[0028] In this embodiment, the material conveying structure includes a drive motor 11 fixedly connected inside the housing 3. The output shaft of the drive motor 11 is fixedly connected to a connecting shaft 12. The right end of the connecting shaft 12 is fixedly connected to a rotating shaft 13. An auger 16 is fixedly connected to the outer peripheral wall of the rotating shaft 13. An mounting ring 14 is fixedly connected to the outer peripheral wall of the connecting shaft 12. Two fan blades 15 are fixedly connected to the outer peripheral wall of the mounting ring 14. A baffle ring 17 is fixedly connected inside the drying cylinder 1. A blocking net 18 is fixedly connected to the inner peripheral wall of the baffle ring 17. The connecting shaft 12 is rotatably connected inside the blocking net 18.
[0029] It should be noted that the auger 16 facilitates the movement of the granules to the left, thus making it easier to process the granules.
[0030] It should be noted that the feeding box 5 is supported by the reinforcing rod 10, the support rod 9 and the support plate 8, which improves the stability of the feeding box 5 installation.
[0031] It should be noted that an air pump is connected to the air inlet pipe 20. The air pump inputs hot gas into the interior of the drying cylinder 1, and the fan blades 15 push the hot gas to the right to quickly dry the granules.
[0032] It should be noted that the granules are blocked by the barrier net 18 and the retaining ring 17.
[0033] The working principle of the above embodiments is as follows:
[0034] First, the granules are poured into the feed box 5. The guide table 7 guides the granules, causing them to slide to the left and right. Then, the granules are fed into the drying cylinder 1 through the two feed pipes 4. The drive motor 11 is then started, which drives the fan blades 15 and the auger 16 to rotate synchronously through the connecting shaft 12 and the rotating shaft 13. The fan blades 15 push the hot air to flow, and the auger 16 moves the granules to the left. This allows for rapid and uniform drying and conveying of the granules.
[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.
[0036] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency blower for an underwater EVA granulator, comprising a drying cylinder (1), side plates (2), and a housing (3), characterized in that: The top of the drying cylinder (1) is provided with a feeding structure, and the inside of the drying cylinder (1) is provided with a conveying structure; The feeding structure includes two feed pipes (4) fixedly connected to the top of the drying cylinder (1), a feed box (5) fixedly connected to the top of the feed pipes (4), a support platform (6) fixedly connected inside the feed box (5), a guide platform (7) fixedly connected to the top of the support platform (6), two support plates (8) fixedly connected to the outer peripheral wall of the drying cylinder (1), a support rod (9) fixedly connected between the support plate (8) and the feed box (5), and two reinforcing rods (10) fixedly connected to the right side of the side plate (2).
2. The high-efficiency blower for an underwater EVA granulator according to claim 1, characterized in that: The material conveying structure includes a drive motor (11) fixedly connected inside the housing (3). The output shaft of the drive motor (11) is fixedly connected to a connecting shaft (12). The right end of the connecting shaft (12) is fixedly connected to a rotating shaft (13). The outer peripheral wall of the rotating shaft (13) is fixedly connected to an auger (16).
3. The high-efficiency blower for an underwater EVA granulator according to claim 2, characterized in that: The outer peripheral wall of the connecting shaft (12) is fixedly connected to an installation ring (14), and the outer peripheral wall of the installation ring (14) is fixedly connected to two fan blades (15).
4. The high-efficiency blower for an underwater EVA granulator according to claim 2, characterized in that: A retaining ring (17) is fixedly connected inside the drying cylinder (1), and a blocking net (18) is fixedly connected to the inner circumferential wall of the retaining ring (17). The connecting shaft (12) is rotatably connected inside the blocking net (18).
5. The high-efficiency blower for an underwater EVA granulator according to claim 1, characterized in that: An air inlet pipe (20) is fixedly connected to the top of the drying cylinder (1), and a material feeding seat (19) is fixedly connected to the bottom of the drying cylinder (1).
6. The high-efficiency blower for an underwater EVA granulator according to claim 1, characterized in that: The guide platform (7) is an isosceles triangle, and there are two feeding chambers between the support platform (6) and the feeding box (5), with the two feeding pipes (4) located inside the two feeding chambers respectively.
7. The high-efficiency blower for an underwater EVA granulator according to claim 1, characterized in that: The two reinforcing rods (10) are fixedly connected to the bottom of the two support plates (8).
8. The high-efficiency blower for an underwater EVA granulator according to claim 1, characterized in that: The drying cylinder (1) is fixedly connected to the right side of the side plate (2), and the box body (3) is fixedly connected to the left side of the side plate (2).