A drying device for polypropylene master batch processing

Abstract

This utility model discloses a drying device for processing polypropylene masterbatch, including a drying chamber. A crushing chamber is connected to the drying chamber via a fixing mechanism. The top of the crushing chamber has a feed inlet, and a feed funnel is fixedly connected to the inner wall of the feed inlet. A servo motor is fixedly connected to the top of the crushing chamber, and a drive shaft is fixedly connected to the output end of the servo motor. A first buffer feeding plate, a second buffer feeding plate, and a third buffer feeding plate are fixedly connected to the inner wall of the drying chamber. By setting multiple buffer feeding plates and a vibration mechanism, this utility model allows the material to be fully dispersed during its descent, increasing the contact area with hot air and improving the drying effect. The threaded block of the vibration mechanism moves up and down on the drive shaft, driving the vibrating head to vibrate, preventing material accumulation on the buffer feeding plates, further promoting material dispersion, and allowing the hot air to better contact the material, thus improving the drying effect.

Description

Technical Field

[0001] This utility model relates to the field of polypropylene masterbatch processing technology, and in particular to a drying device for polypropylene masterbatch processing. Background Technology

[0002] In the modern plastics industry, polypropylene masterbatch is a key raw material for the production of plastic products. Its processing quality directly affects the performance and quality of the end products. In the entire processing flow of polypropylene masterbatch, the drying process is an extremely important and indispensable step, and its main function is to remove the moisture contained in the masterbatch.

[0003] However, significant shortcomings can be found in the traditional polypropylene masterbatch drying equipment widely used in the market today. Firstly, some drying units are not designed with a crushing function, an oversight that becomes particularly prominent when dealing with masterbatch that has agglomerated due to improper storage or transportation. Lacking a pretreatment mechanism, these units cannot effectively crush large particles or agglomerated masterbatch, resulting in insufficient evaporation of moisture from the large particles during subsequent drying. This significantly reduces the drying effect, and may even lead to incomplete drying, severely impacting the final quality of the masterbatch.

[0004] On the other hand, existing drying equipment often neglects the consideration of material flowability in its structural design, making it easy for masterbatch to accumulate during the drying process. This accumulation not only hinders the uniform flow of hot air but also leads to uneven heat distribution within the equipment, making it difficult for the hot air to make sufficient and effective contact with the material. As a result, some masterbatch, due to prolonged exposure to low temperatures or windless areas, dries far less than other areas, creating uneven drying "dead zones." This uneven drying phenomenon not only reduces the overall quality of the product but may also cause a series of problems in subsequent processing, such as unstable product performance and appearance defects. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a drying device for processing polypropylene masterbatch, which integrates crushing and high-efficiency drying, thereby pre-treating agglomerated masterbatch and improving drying efficiency and uniformity.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drying device for processing polypropylene masterbatch includes a drying chamber, a crushing chamber connected to the drying chamber via a fixing mechanism, a feed inlet at the top of the crushing chamber, a feed funnel fixedly connected to the inner wall of the feed inlet, a servo motor fixedly connected to the top of the crushing chamber, a drive shaft fixedly connected to the output end of the servo motor, a discharge port at the top of the drying chamber, a filter plate on the inner wall of the discharge port, a first buffer discharge plate, a second buffer discharge plate, and a third buffer discharge plate fixedly connected to the inner wall of the drying chamber, the drive shaft sequentially passing through the filter plate, the first buffer discharge plate, the second buffer discharge plate, and the third buffer discharge plate, multiple sets of crushing blades fixedly connected to the outer wall of the drive shaft located inside the crushing chamber, a vibration mechanism connected to the drive shaft, and a drying mechanism connected to the drying chamber.

[0008] The fixing mechanism includes two fixing plates fixedly connected to the outer wall of the crushing chamber, and the fixing plates are fixedly connected to the top of the drying chamber by fastening bolts.

[0009] The drying mechanism includes a drying chamber fixedly connected to the outer wall of the drying box, and the drying chamber is connected to multiple drying air ducts, which penetrate the side wall of the drying chamber.

[0010] The vibration mechanism includes two threaded blocks, which are respectively connected to the outer wall of the drive shaft located between the first buffer feeding plate and the second buffer feeding plate, and between the second buffer feeding plate and the third buffer feeding plate. Two symmetrically arranged telescopic rods are fixedly connected to the top and bottom of each threaded block, and a vibration head is fixedly connected to the end of each telescopic rod away from the threaded block.

[0011] The outer wall of the telescopic rod is fitted with a buffer spring, and the two ends of the buffer spring are fixedly connected to the outer wall of the vibrating head and the outer wall of the threaded block, respectively.

[0012] The outer wall of the drive shaft is provided with an external thread, and the threaded block is provided with a threaded opening that is adapted to the external thread. The inner wall of the threaded opening is threadedly connected to the outer wall of the drive shaft.

[0013] The first buffer feeding plate, the second buffer feeding plate, and the third buffer feeding plate are arranged at an angle to each other from top to bottom.

[0014] The threaded block is provided with two symmetrically arranged limiting ports. The bottom of the drying oven is fixedly connected with two symmetrically arranged limiting rods. The two limiting rods pass through the first buffer feeding plate, the second buffer feeding plate and the third buffer feeding plate and are slidably connected to the inner side wall of the limiting port of the threaded block.

[0015] This utility model has the following advantages compared with the prior art:

[0016] 1. By setting multiple buffer feeding plates and a vibration mechanism, the material can be fully dispersed during the falling process, increasing the contact area with hot air and improving the drying effect. The screw block of the vibration mechanism moves up and down on the drive shaft, driving the vibrating head to vibrate, preventing the material from accumulating on the buffer feeding plates, further promoting the dispersion of the material, and allowing the hot air to better contact the material, thus improving the drying effect.

[0017] 2. This utility model utilizes a crushing box, with a servo motor, drive shaft, and multiple sets of crushing blades installed on the top of the crushing box. When polypropylene masterbatch enters the crushing box through the feed funnel, the servo motor drives the drive shaft and crushing blades to rotate, crushing the agglomerated masterbatch into smaller particles, which facilitates subsequent drying, improves drying efficiency and uniformity, and disperses the agglomerated masterbatch, making it easier for internal moisture to dissipate, resulting in high drying efficiency, uniform drying, and improved product quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the structural connection between the vibration mechanism and the drive shaft in this utility model;

[0020] Figure 3 This is a schematic diagram of the vibration mechanism in this utility model;

[0021] Figure 4 This is a schematic diagram of the structural connection between the drying shell and the drying oven shell in this utility model.

[0022] In the diagram: 1. Drying box; 2. Fixing plate; 3. Fastening bolt; 4. Crushing box; 5. Feed hopper; 6. Servo motor; 7. Drive shaft; 8. Crushing blades; 9. Drying box; 10. Drying air duct; 11. First buffer feeding plate; 12. Second buffer feeding plate; 13. Third buffer feeding plate; 14. Discharge port; 15. Filter plate; 16. Threaded block; 17. Telescopic rod; 18. Vibrating head; 19. Buffer spring; 20. Limiting rod; 21. Buckle plate. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] Reference Figures 1-4A drying device for processing polypropylene masterbatch includes a drying chamber 1. A crushing chamber 4 is connected to the drying chamber 1 via a fixing mechanism. The crushing chamber 4 is located above the drying chamber 1. A feed inlet is located at the top of the crushing chamber 4, and a feed funnel 5 is fixedly connected to the inner wall of the feed inlet. This design facilitates the smooth entry of polypropylene masterbatch into the device. A servo motor 6 is fixedly connected to the top of the crushing chamber 4, and a drive shaft 7 is fixedly connected to the output end of the servo motor 6. When the servo motor 6 is started, the drive shaft 7 rotates at high speed. A discharge port 14 is located at the top of the drying chamber 1, and a filter plate 15 is located on the inner wall of the discharge port 14. The filter plate 15 can block larger impurities and incompletely crushed particles, ensuring that the material entering the drying chamber 1 meets the requirements. One side of the drying chamber 1 is designed with a flexibly openable snap-on plate 21 structure. The arrangement of this structure has been carefully considered to ensure the airtightness of the polypropylene masterbatch during the orderly drying process inside the chamber. Specifically, the buckle plate 21 is connected to the main body of the drying oven through a precise buckle or hinge device, which ensures both ease of opening and tight fit when closed, effectively preventing heat loss and the intrusion of external moisture during the drying process.

[0025] Meanwhile, to facilitate the smooth discharge of the dried polypropylene masterbatch, a flexible outlet is provided between the lower end of the retaining plate 21 and the bottom plate of the drying chamber. This outlet ensures that the masterbatch can flow out smoothly and without obstruction, while maintaining the overall airtightness of the drying chamber. This structural design meets the needs of the production process while also taking into account the convenience and efficiency of equipment use.

[0026] The inner wall of the drying chamber 1 is fixedly connected to a first buffer discharge plate 11, a second buffer discharge plate 12, and a third buffer discharge plate 13. The drive shaft 7 passes through the filter plate 15, the first buffer discharge plate 11, the second buffer discharge plate 12, and the third buffer discharge plate 13 in sequence. The first buffer discharge plate 11, the second buffer discharge plate 12, and the third buffer discharge plate 13 are arranged at an inclination relative to each other from top to bottom, so that the material can be fully dispersed during the falling process, increasing the contact area with the hot air. The outer wall of the drive shaft 7 located in the crushing chamber 4 is fixedly connected to multiple sets of crushing blades 8. When the drive shaft 7 rotates, the crushing blades 8 will fully crush the polypropylene masterbatch entering the crushing chamber 4, crushing larger particles into smaller particles, which is beneficial to the subsequent drying process.

[0027] The drive shaft 7 is connected to a vibration mechanism, which includes two threaded blocks 16. The two threaded blocks 16 are respectively connected to the outer wall of the drive shaft 7 located between the first buffer feed plate 11 and the second buffer feed plate 12, and between the second buffer feed plate 12 and the third buffer feed plate 13. Two symmetrically arranged telescopic rods 17 are fixedly connected to the top and bottom of the threaded blocks 16. A vibrating head 18 is fixedly connected to the end of the telescopic rod 17 away from the threaded block 16. A buffer spring 19 is sleeved on the outer wall of the telescopic rod 17. The two ends of the buffer spring 19 are fixedly connected to the outer wall of the vibrating head 18 and the outer wall of the threaded block 16, respectively. The outer wall of the drive shaft 7 is provided with external threads. The threaded block 16 is provided with a threaded opening that matches the external threads. The inner wall of the threaded opening is threadedly sleeved with the outer wall of the drive shaft 7. When the drive shaft 7 rotates, the threaded block 16 will move up and down on the drive shaft 7, thereby driving the vibrating head 18 to vibrate. This vibration can prevent the material from accumulating on the buffer feed plate and ensure that the material falls smoothly.

[0028] The drying chamber 1 is connected to a drying mechanism, which includes a drying chamber 9 fixedly connected to the outer wall of the drying chamber 1. The drying chamber 9 is connected to multiple drying air ducts 10, which penetrate the side wall of the drying chamber 1. The hot air generated by the drying chamber 9 enters the drying chamber 1 through the drying air ducts 10 to dry the falling material.

[0029] The fixing mechanism includes two fixing plates 2 fixedly connected to the outer wall of the crushing box 4. The fixing plates 2 are fixedly connected to the top of the drying box 1 by fastening bolts 3. This connection method makes the connection between the crushing box 4 and the drying box 1 more stable, which facilitates the overall operation and maintenance of the device.

[0030] The threaded block 16 is provided with two symmetrically arranged limiting ports. The bottom of the drying oven 1 is fixedly connected with two symmetrically arranged limiting rods 20. The two limiting rods 20 pass through the first buffer feeding plate 11, the second buffer feeding plate 12 and the third buffer feeding plate 13 and are slidably connected to the inner side wall of the limiting port of the threaded block 16. The setting of the limiting rods 20 ensures the stability of the threaded block 16 during the movement process and prevents it from deviating.

[0031] The specific working principle of this utility model is as follows:

[0032] Initially, polypropylene masterbatch enters the crushing chamber 4 through the feed funnel 5. The servo motor 6 starts, driving the drive shaft 7 to rotate. The crushing blades 8 on the drive shaft 7 crush the masterbatch, breaking larger particles into smaller ones. The crushed masterbatch passes through the filter plate 15 of the discharge port 14, filtering out larger impurities and incompletely crushed particles, and then falls onto the first buffer discharge plate 11. Since the first buffer discharge plate 11, the second buffer discharge plate 12, and the third buffer discharge plate 13 are inclined to each other, the masterbatch gradually slides down between the buffer discharge plates during the falling process, thereby increasing the contact area with the hot air. When the drive shaft 7 rotates, the threaded block 16 moves up and down on the drive shaft 7, driving the vibrating head 18 to vibrate up and down, thereby impacting the discharge plate and preventing the masterbatch from accumulating on the buffer discharge plate. The hot air generated by the drying chamber 9 enters the drying chamber 1 through the drying air duct 10 to dry the falling masterbatch and remove the moisture. The dried masterbatch is discharged from the bottom of the drying chamber 1.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drying apparatus for processing polypropylene masterbatch, comprising a drying chamber (1), characterized in that, The drying chamber (1) is connected to the crushing chamber (4) by a fixing mechanism. The top of the crushing chamber (4) is provided with a feed inlet. The inner side wall of the feed inlet is fixedly connected with a feed funnel (5). The top of the crushing chamber (4) is fixedly connected with a servo motor (6). The output end of the servo motor (6) is fixedly connected with a drive shaft (7). The top of the drying chamber (1) is provided with a discharge port (14). The inner side wall of the discharge port (14) is provided with a filter plate (15). The inner side wall of the drying chamber (1) is fixedly connected with a first buffer discharge plate (11), a second buffer discharge plate (12), and a third buffer discharge plate (13). The drive shaft (7) passes through the filter plate (15), the first buffer discharge plate (11), the second buffer discharge plate (12), and the third buffer discharge plate (13) in sequence. The outer side wall of the drive shaft (7) located in the crushing chamber (4) is fixedly connected with multiple sets of crushing blades (8). The drive shaft (7) is connected with a vibration mechanism. The drying chamber (1) is connected with a drying mechanism.

2. The drying apparatus for processing polypropylene masterbatch according to claim 1, characterized in that, The fixing mechanism includes two fixing plates (2) fixedly connected to the outer wall of the crushing box (4), and the fixing plates (2) are fixedly connected to the top of the drying box (1) by fastening bolts (3).

3. The drying apparatus for processing polypropylene masterbatch according to claim 1, characterized in that, The drying mechanism includes a drying box (9) fixedly connected to the outer wall of the drying box (1), and the drying box (9) is connected to a plurality of drying air ducts (10), which penetrate the side wall of the drying box (1).

4. The drying apparatus for processing polypropylene masterbatch according to claim 1, characterized in that, The vibration mechanism includes two threaded blocks (16), which are respectively connected to the outer wall of the drive shaft (7) located between the first buffer feed plate (11) and the second buffer feed plate (12) and the second buffer feed plate (12) and the third buffer feed plate (13). Two symmetrically arranged telescopic rods (17) are fixedly connected to the top and bottom of each threaded block (16), and a vibration head (18) is fixedly connected to the end of the telescopic rod (17) away from the threaded block (16).

5. A drying apparatus for processing polypropylene masterbatch according to claim 4, characterized in that, The telescopic rod (17) is fitted with a buffer spring (19) on its outer wall. The two ends of the buffer spring (19) are fixedly connected to the outer wall of the vibrating head (18) and the outer wall of the threaded block (16), respectively.

6. A drying apparatus for processing polypropylene masterbatch according to claim 4, characterized in that, The outer wall of the drive shaft (7) is provided with an external thread, and the threaded block (16) is provided with a threaded opening that is compatible with the external thread. The inner wall of the threaded opening is threadedly connected to the outer wall of the drive shaft (7).

7. A drying apparatus for processing polypropylene masterbatch according to claim 1, characterized in that, The first buffer feeding plate (11), the second buffer feeding plate (12) and the third buffer feeding plate (13) are arranged at an angle to each other from top to bottom.

8. A drying apparatus for processing polypropylene masterbatch according to claim 4, characterized in that, The threaded block (16) is provided with two symmetrically arranged limiting ports. The bottom of the drying box (1) is fixedly connected with two symmetrically arranged limiting rods (20). The two limiting rods (20) pass through the first buffer feeding plate (11), the second buffer feeding plate (12) and the third buffer feeding plate (13) and are slidably connected to the inner side wall of the limiting port of the threaded block (16).

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