High-efficiency waste plastic granulating device

Abstract

The utility model discloses a high-efficiency waste plastic granulating device which comprises an extrusion granulator, a water ring granulator is fixedly mounted at one end of a discharge port of the extrusion granulator, and a feeding structure is mounted on the upper portion of a feed port of the extrusion granulator. The feeding structure comprises a feeding hopper, a cylinder body, a supporting plate, a top plate, a hydraulic rod, a material pressing plate, a guide ring, a cylindrical column, a motor, an electric heating porous screen, a rotating shaft, a supporting block, a spiral blade, a material scraping plate and a supporting shaft, the feeding hopper is fixedly mounted at the upper part of a feeding hole in the extrusion granulator, and the cylinder body is fixedly mounted on the outer surface of the upper end of the feeding hopper. According to the high-efficiency waste plastic granulation device disclosed by the utility model, the efficiency and the quality of waste plastic granulation are remarkably improved by optimizing a feeding structure and introducing pre-melting and mechanical auxiliary conveying technologies.

Description

Technical Field

[0001] This utility model relates to the field of waste plastic treatment technology, specifically a high-efficiency waste plastic granulation device. Background Technology

[0002] With the increasing use of plastic products, the recycling and reuse of waste plastics has become an important issue for environmental protection and resource conservation. Waste plastic granulation technology is a process that reprocesses waste plastics into plastic granules through melting, extrusion, and pelletizing. These granules can then be used to produce new plastic products.

[0003] However, existing waste plastic pelletizing equipment still has many problems in practical applications:

[0004] High load on the main screw: Traditional granulation equipment usually relies on the main screw of the extruder to complete the melting and conveying of plastics, resulting in excessive load on the main screw and easy to affect the granulation quality due to insufficient melting of materials;

[0005] Unstable feeding: Existing equipment mostly relies on the material's own gravity for feeding, which can easily cause material blockage due to accumulation or adhesion, affecting production efficiency.

[0006] Therefore, we propose a high-efficiency waste plastic granulation device. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention provides a high-efficiency waste plastic granulation device. By pre-melting waste plastics in the hopper and then mechanically extruding them, the device achieves pre-melting, which significantly reduces the load on the main screw and effectively solves the problems in the background technology.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-efficiency waste plastic granulation device, including an extrusion granulator, a water ring pelletizer is fixedly installed at one end of the discharge port of the extrusion granulator, and a feeding structure is installed on the upper part of the feed port of the extrusion granulator. The feeding structure includes a hopper, a cylinder, a support plate, a top plate, a hydraulic rod, a pressure plate, a guide ring, a cylindrical column, a motor, an electrically heated perforated screen, a rotating shaft, a support block, a spiral blade, a scraper, and a support shaft. The hopper is fixedly installed on the upper part of the feed port of the extrusion granulator, and the cylinder is fixedly installed on the upper outer surface of the feed port.

[0009] Preferably, the electrically heated porous screen is fixedly installed in the upper part of the inner cavity of the feed hopper.

[0010] Preferably, there are two sets of support plates, which are fixedly installed between the left and right sides of the upper outer surface of the cylinder and the left and right sides of the lower outer surface of the top plate, and the motor is fixedly installed in the middle of the upper outer surface of the top plate.

[0011] Preferably, there are two sets of hydraulic rods, which are fixedly installed on the left and right sides of the upper outer surface of the top plate. The lower outer surface of the piston rod in the two sets of hydraulic rods is fixedly connected to the left and right sides of the upper outer surface of the pressure plate. The guide ring is fixedly installed in the middle of the upper outer surface of the pressure plate. The cylindrical column is fixedly installed between the middle of the lower outer surface of the top plate and the middle of the electrically heated porous screen, and the cylindrical column passes through the guide ring.

[0012] Preferably, the support block is fixedly installed inside the cylindrical column, the rotating shaft passes through the cylindrical column and the support block, a bearing is provided between the rotating shaft, the support block, and the top plate, the rotating shaft is rotatably connected to the top plate through the bearing, a coupling is provided between the rotating shaft and the motor, and the upper outer surface of the rotating shaft is fixedly connected to the lower outer surface of the output shaft in the motor through the coupling.

[0013] Preferably, the spiral blade, scraper, and support shaft are all located inside the feed hopper. The spiral blade is fixedly installed on the outer wall of the lower end of the rotating shaft, and the support shaft is fixedly installed between the outer wall of the lower part of the rotating shaft and one side of the outer surface of the scraper. One side of the scraper is in contact with the inner wall of the feed hopper.

[0014] Compared with the prior art, this utility model provides a high-efficiency waste plastic granulation device, which has the following beneficial effects:

[0015] This high-efficiency waste plastic granulation device features a feeding structure that achieves pre-melting of waste plastics through pre-melting in the hopper and mechanical extrusion, which can significantly reduce the load on the main screw.

[0016] This high-efficiency waste plastic granulation device features a feeding structure that enables stable feeding, avoiding the material blockage phenomenon that occurs in existing technologies that rely on gravity.

[0017] This high-efficiency waste plastic granulation device features a feeding structure with a scraper plate that facilitates scraping the inner wall of the hopper, preventing material from sticking to the inner wall. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency waste plastic granulation device according to the present invention.

[0019] Figure 2 This is a schematic diagram of the feeding structure in a high-efficiency waste plastic granulation device of this utility model.

[0020] Figure 3 This is a partial structural diagram of the feeding structure in a high-efficiency waste plastic granulation device of this utility model.

[0021] Figure 4This utility model relates to a high-efficiency waste plastic granulation device. Figure 3 Side view of the middle structure.

[0022] In the diagram: 1. Extrusion granulator; 2. Water ring pelletizer; 3. Feeding structure; 4. Feed hopper; 5. Cylinder; 6. Support plate; 7. Top plate; 8. Hydraulic rod; 9. Pressure plate; 10. Guide ring; 11. Cylindrical column; 12. Motor; 13. Electric heating perforated screen; 14. Rotating shaft; 15. Support block; 16. Spiral blade; 17. Scraper; 18. Support shaft. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] This embodiment is a high-efficiency waste plastic granulation device.

[0025] like Figures 1-4 As shown, the extrusion granulator 1 is included. A water ring pelletizer 2 is fixedly installed at one end of the discharge port of the extrusion granulator 1. A feeding structure 3 is installed on the upper part of the feed port of the extrusion granulator 1. The feeding structure 3 includes a hopper 4, a cylinder 5, a support plate 6, a top plate 7, a hydraulic rod 8, a pressure plate 9, a guide ring 10, a cylindrical column 11, a motor 12, an electrically heated perforated screen 13, a rotating shaft 14, a support block 15, a spiral blade 16, a scraper 17, and a support shaft 18. The hopper 4 is fixedly installed on the upper part of the feed port of the extrusion granulator 1, and the cylinder 5 is fixedly installed on the upper outer surface of the hopper 4.

[0026] The electrically heated perforated screen 13 is fixedly installed in the upper part of the inner cavity of the feed hopper 4; there are two sets of support plates 6, which are fixedly installed between the left and right sides of the upper outer surface of the cylinder 5 and the left and right sides of the lower outer surface of the top plate 7; the motor 12 is fixedly installed in the middle of the upper outer surface of the top plate 7; there are two sets of hydraulic rods 8, which are fixedly installed on the left and right sides of the upper outer surface of the top plate 7; the lower outer surface of the piston rod in the two sets of hydraulic rods 8 is fixedly connected to the left and right sides of the upper outer surface of the pressure plate 9; the guide ring 10 is fixedly installed in the middle of the upper outer surface of the pressure plate 9; the cylindrical column 11 is fixedly installed between the middle of the lower outer surface of the top plate 7 and the middle of the electrically heated perforated screen 13, and the cylindrical column 11 passes through the guide ring 10; The support block 15 is fixedly installed inside the cylindrical column 11. The rotating shaft 14 passes through the cylindrical column 11 and the support block 15. Bearings are provided between the rotating shaft 14, the support block 15, and the top plate 7. The rotating shaft 14 is rotatably connected to the top plate 7 through the bearings. A coupling is provided between the rotating shaft 14 and the motor 12. The upper outer surface of the rotating shaft 14 is fixedly connected to the lower outer surface of the output shaft in the motor 12 through the coupling. The spiral blade 16, the scraper 17, and the support shaft 18 are all located inside the feed hopper 4. The spiral blade 16 is fixedly installed on the outer wall of the lower end of the rotating shaft 14. The support shaft 18 is fixedly installed between the lower outer wall of the rotating shaft 14 and one side of the outer surface of the scraper 17. One side of the scraper 17 is in contact with the inner wall of the feed hopper 4.

[0027] It should be noted that this utility model is a high-efficiency waste plastic granulation device. The extrusion granulator 1 and water ring pelletizer 2 described in this document are existing technologies. The material is extruded by the extrusion granulator 1 and cooled and pelletized by the water ring pelletizer 2. This is readily known to those skilled in the art, and will not be elaborated further. The feeding structure 3 is designed so that the pressure plate 9 is raised by the operation of the hydraulic rod 8, as shown in the attached instruction manual. Figure 1 , 2As shown, waste plastic processed by the crusher is added into the interior of the cylinder 5. An electrically heated perforated screen 13 is installed, which heats the screen to a high temperature. Plastic fragments melt rapidly upon contact with the screen surface and pass through the screen holes under external force, forming a uniform melt that enters the next stage. This external force is achieved by the operation of the hydraulic rod 8, which drives the pressure plate 9 to descend. The pressure plate 9 descends along the outer wall of the cylindrical column 11 via the guide ring 10, squeezing the material in the cylinder 5. The molten material enters the interior of the feed hopper 4. The operation of the motor 12 drives the rotating shaft 14, which passes through the cylindrical column 11, to rotate. The rotating shaft 14 drives the spiral blade 16 to rotate, pushing the material downwards. The spiral blade 16 and the pressure plate 9 improve the stability of the feeding process and prevent material blockage. The rotating shaft 14 drives the scraper 17 to rotate via the support shaft 18, scraping the inner wall of the feed hopper 4 to prevent material from adhering to it.

[0028] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., 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.

[0029] 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 claimed utility model.

Claims

1. A high-efficiency waste plastic granulation device, comprising an extrusion granulator (1), wherein a water ring pelletizer (2) is fixedly installed at one end of the discharge port of the extrusion granulator (1), characterized in that: The upper part of the feed inlet of the extrusion granulator (1) is equipped with a feeding structure (3), which includes a feed hopper (4), a cylinder (5), a support plate (6), a top plate (7), a hydraulic rod (8), a pressure plate (9), a guide ring (10), a cylindrical column (11), a motor (12), an electrically heated perforated screen (13), a rotating shaft (14), a support block (15), a spiral blade (16), a scraper (17), and a support shaft (18). The feed hopper (4) is fixedly installed at the upper part of the feed inlet of the extrusion granulator (1), and the cylinder (5) is fixedly installed on the upper outer surface of the feed hopper (4).

2. The high-efficiency waste plastic granulation device according to claim 1, characterized in that: The electrically heated porous screen (13) is fixedly installed in the upper part of the inner cavity of the feed hopper (4).

3. The high-efficiency waste plastic granulation device according to claim 2, characterized in that: The number of the support plates (6) is two sets. The two sets of support plates (6) are fixedly installed between the left and right sides of the upper outer surface of the cylinder (5) and the left and right sides of the lower outer surface of the top plate (7). The motor (12) is fixedly installed in the middle of the upper outer surface of the top plate (7).

4. The high-efficiency waste plastic granulation device according to claim 3, characterized in that: The hydraulic rods (8) are in two sets. The two sets of hydraulic rods (8) are fixedly installed on the left and right sides of the upper outer surface of the top plate (7). The lower outer surface of the piston rod in the two sets of hydraulic rods (8) is fixedly connected to the left and right sides of the upper outer surface of the pressure plate (9). The guide ring (10) is fixedly installed in the middle of the upper outer surface of the pressure plate (9). The cylindrical column (11) is fixedly installed between the middle of the lower outer surface of the top plate (7) and the middle of the electrically heated porous screen (13), and the cylindrical column (11) passes through the guide ring (10).

5. The high-efficiency waste plastic granulation device according to claim 4, characterized in that: The support block (15) is fixedly installed inside the cylindrical column (11). The rotating shaft (14) passes through the cylindrical column (11) and the support block (15). A bearing is provided between the rotating shaft (14), the support block (15), and the top plate (7). The rotating shaft (14) is rotatably connected to the rotating shaft (14) and the top plate (7) through the bearing. A coupling is provided between the rotating shaft (14) and the motor (12). The upper outer surface of the rotating shaft (14) is fixedly connected to the lower outer surface of the output shaft in the motor (12) through the coupling.

6. The high-efficiency waste plastic granulation device according to claim 5, characterized in that: The spiral blade (16), scraper (17) and support shaft (18) are all located inside the feed hopper (4). The spiral blade (16) is fixedly installed on the outer wall of the lower end of the rotating shaft (14). The support shaft (18) is fixedly installed between the outer wall of the lower part of the rotating shaft (14) and the outer surface of one side of the scraper (17). One side of the scraper (17) is in contact with the inner wall of the feed hopper (4).

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