Centrifugal plastic particle sorting and screening machine
By employing a clearing structure and sealing design, the centrifugal plastic particle sorting and screening machine solves the problems of low screening efficiency and clogging in kitchen waste plastic product screening equipment, achieving efficient plastic particle sorting and discharge, and improving the stability and flexibility of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU GREEN ENERGY JINCHENG ENVIRONMENTAL PROTECTION CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-05
AI Technical Summary
Existing screening equipment for plastic products from kitchen waste is prone to low screening efficiency due to differences in particle shape during the screening process, and plastic particles are prone to agglomeration and blockage of the discharge channel, affecting the continuous operation of the equipment.
The centrifugal plastic granule sorting and screening machine includes a clearing structure and sealing design. It uses scrapers, vibrating motors and damping spring rods to clear blockages in materials, and combines auger conveying and centrifugal screening to achieve auxiliary discharge and efficient screening.
It improves the sorting and discharge efficiency of plastic granules, enhances the flexibility and stability of the equipment, and optimizes the user experience.
Smart Images
Figure CN224195204U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of plastic granule processing equipment, specifically, it relates to a centrifugal plastic granule sorting and screening machine. Background Technology
[0002] In the processing of food waste, the crushing and processing of plastic products is a crucial step in achieving resource recycling. Obtaining plastic granules with uniform particle size is a core prerequisite for ensuring the smooth progress of subsequent deep processing steps such as melting, granulation, and modification, and directly determines the quality stability and performance of recycled plastic products. Therefore, precise screening of the crushed plastic granules has become a key technical node in this processing flow.
[0003] However, existing screening equipment for plastic products from food waste faces multiple technical bottlenecks. Due to the complex origins of plastics mixed in food waste, the resulting particles exhibit significant differences in morphology after crushing, containing a large number of irregular, burr-like, or sharp-edged particles. During screening, these uniquely shaped particles are easily trapped in the screen mesh due to collisions, friction, and scraping, resulting in a substantial decrease in screening efficiency. The separation precision of particles of different sizes is insufficient to meet the requirements of high-standard recycling processes. Furthermore, during the discharge stage, plastic particles easily agglomerate into clumps due to inter-particle friction and electrostatic adsorption, frequently clogging the discharge channel and severely restricting the continuous operation capability of the equipment, posing numerous obstacles to the efficient processing of plastic products from food waste.
[0004] In view of this, this utility model is proposed. Utility Model Content
[0005] To solve the aforementioned technical problem of material blockage at the discharge point, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A centrifugal plastic particle sorting and screening machine includes:
[0007] Screening tank, the screening tank is cylindrical;
[0008] The unblocking structure includes a first unblocking section and a second unblocking section. The first unblocking section includes a first rotating shaft located inside the screening tank. A second stirring plate is fixedly installed on the outer wall of the first rotating shaft. Four sets of scrapers are fixedly installed on the outer wall of the second stirring plate. A cleaning brush is fixedly installed on one side of the outer wall of the scraper. The second unblocking section includes a second fixing ring plate located at one end of the screening tank. Two sets of third fixing ring plates are arranged inside the second fixing ring plate. The outer wall of one set of third fixing ring plates is fixedly connected to the inner wall of the second fixing ring plate. A second fixing plate is fixedly installed between the two sets of third fixing ring plates. A vibration motor is fixedly installed at the bottom of the second fixing plate. Six sets of damping spring rods are arranged between the two sets of third fixing ring plates.
[0009] In a preferred embodiment of the present invention, the second unblocking part further includes a second screen plate fixedly installed inside the third fixing ring plate. The bottom of the second fixing ring plate has an opening, and a second discharge port is fixedly installed inside the opening.
[0010] In a preferred embodiment of this utility model, two sets of brackets are fixedly installed on the outer wall of the screening tank, and a first sealing plate is fixedly installed on the other end of the screening tank. A servo motor is fixedly installed on one side of the outer wall of the first sealing plate. An opening is provided at the top of the first sealing plate, and a feed hopper is fixedly installed inside the opening. An auger is provided inside the first sealing plate. The output shaft of the servo motor is fixedly connected to one end of the auger through a coupling, and the other end of the auger is fixedly connected to one end of the first rotating shaft.
[0011] In a preferred embodiment of the present invention, five sets of stirring plates are fixedly installed on the outer wall of the first rotating shaft, four sets of first snap-fit grooves are opened inside the screening tank, and an opening is opened at the bottom of the screening tank, with a first discharge port fixedly installed inside the opening.
[0012] In a preferred embodiment of the present invention, the screening tank is provided with two sets of first fixing ring plates inside, and four sets of first snap-fit plates are fixedly installed between the outer walls of the two sets of first fixing ring plates. The first snap-fit plates are snap-fitted into the inside of the first snap-fit grooves. The first fixing ring plates are provided with four sets of second snap-fit grooves inside, and the screening tank is provided with four sets of first screening hole plates. The first screening hole plates are fixedly installed into the inside of the second snap-fit grooves.
[0013] In a preferred embodiment of this utility model, a first fixing plate is fixedly installed on the outer wall of the second fixing ring plate, a first fixing rod is fixedly installed inside the first fixing plate, a sealing cover is provided on the outside of the screening tank, a third fixing plate is fixedly installed on the outer wall of the sealing cover, a fixing sleeve is fixedly installed inside the third fixing plate, and the fixing sleeve is sleeved and installed on the outer wall of the first fixing rod.
[0014] In a preferred embodiment of this utility model, a sealing ring is fixedly installed on one outer wall of the sealing cover, a second limiting plate is fixedly installed on the outer wall of the sealing cover, and a second threaded groove is opened inside the second limiting plate. A first limiting plate is fixedly installed on the outer wall of the second fixing ring plate, and a first threaded groove is opened inside the first limiting plate. A limiting bolt is provided on the outside of the screening tank, and the limiting bolt is screwed into the second threaded groove and the first threaded groove.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] 1. To achieve the purpose of assisting material discharge, clearing blockages in the holes, improving material discharge efficiency, improving the sorting efficiency of plastic granules, and increasing the flexibility of the equipment.
[0017] 2. To achieve the purpose of conveying and centrifugally screening materials, improve the screening efficiency of the device, facilitate the disassembly and installation of the device, and improve the cleaning efficiency of the device.
[0018] 3. To achieve the purpose of sealing and fixing the device, improve the sealing effect of the device, improve the stability of the device in use, and optimize the user experience of the device.
[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0020] In the attached diagram:
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the installation of the second fixing ring plate and the sealing cover plate of this utility model;
[0023] Figure 3 This is a schematic diagram showing the disassembled second and third fixing ring plates of this utility model;
[0024] Figure 4 This is a schematic diagram showing the disassembled first snap-fit groove and the first fixing ring plate of this utility model;
[0025] Figure 5 This is a schematic diagram of the second stirring plate structure of this utility model;
[0026] Figure 6 This is a schematic diagram showing the disassembled second locking groove and the first screening plate of this utility model.
[0027] In the diagram: 10. Screening tank; 11. Support frame; 12. First sealing plate; 13. Feed hopper; 14. Servo motor; 15. First rotating shaft; 16. Stirring plate; 17. Screwdriver; 18. Second stirring plate; 19. Scraper; 20. Cleaning brush; 21. First locking groove; 22. First fixing ring plate; 23. Second locking groove; 24. First locking plate; 25. First screening hole plate; 26. First discharge port; 27. Second fixing ring plate; 28. Second discharge port; 29. First limiting plate; 30. First threaded groove; 31. First fixing plate; 32. First fixing rod; 33. Third fixing ring plate; 34. Second screening hole plate; 35. Second fixing plate; 36. Vibration motor; 37. Damping spring rod; 38. Sealing cover plate; 39. Third fixing plate; 40. Fixing sleeve; 41. Second limiting plate; 42. Second threaded groove; 43. Limiting bolt; 44. Sealing ring. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0029] Example 1: A centrifugal plastic granule sorting and screening machine, specifically as follows... Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the system includes a screening tank 10, which is cylindrical in shape; a dredging structure, which includes a first dredging section and a second dredging section. The first dredging section includes a first rotating shaft 15 disposed inside the screening tank 10, a second stirring plate 18 fixedly installed on the outer wall of the first rotating shaft 15, four sets of scrapers 19 fixedly installed on the outer wall of the second stirring plate 18, and a cleaning brush 20 fixedly installed on one side of the outer wall of the scraper 19; the second dredging section includes a second fixing ring plate 27 disposed at one end of the screening tank 10, two sets of third fixing ring plates 33 disposed inside the second fixing ring plate 27, the outer wall of one set of third fixing ring plates 33 being fixedly connected to the inner wall of the second fixing ring plate 27, a second fixing plate 35 fixedly installed between the two sets of third fixing ring plates 33, a vibration motor 36 fixedly installed at the bottom of the second fixing plate 35, and six sets of damping spring rods 37 disposed between the two sets of third fixing ring plates 33. The device is assisted in discharging material by unblocking the structure. When the first rotating shaft 15 rotates, it drives the second stirring plate 18 to rotate, which in turn drives the scraper 19 to rotate. The cleaning brush 20 cleans and removes material from the inner wall of the first screen plate 25.
[0030] Specifically, such as Figure 2 and Figure 3As shown, the second unblocking section also includes a second screening plate 34 fixedly installed inside the third fixed ring plate 33. The bottom of the second fixed ring plate 27 has an opening, and a second discharge port 28 is fixedly installed inside the opening. The two sets of third fixed ring plates 33 are supported by a damping spring rod 37. When the vibration motor 36 is started, it drives the two sets of second screening plates 34 to vibrate, so that the accumulated material is output from the second discharge port 28.
[0031] Based on the above, the structure of the screening tank 10, the first rotating shaft 15, the second stirring plate 18, the scraper 19, the cleaning brush 20, the second fixed ring plate 27, the second discharge port 28, the third fixed ring plate 33, the second screening hole plate 34, the second fixed plate 35, the vibrating motor 36, and the damping spring rod 37 achieves the purpose of assisting material discharge, clearing blocked holes, improving material discharge efficiency, improving the sorting efficiency of plastic particles, and improving the flexibility of the device.
[0032] Example 2: Based on Example 1, specifically as follows... Figure 1 , Figure 4 and Figure 5 As shown, two sets of brackets 11 are fixedly installed on the outer wall of the screening tank 10. A first sealing plate 12 is fixedly installed at the other end of the screening tank 10. A servo motor 14 is fixedly installed on one side of the outer wall of the first sealing plate 12. An opening is provided at the top of the first sealing plate 12, and a feed hopper 13 is fixedly installed inside the opening. An auger 17 is provided inside the first sealing plate 12. The output shaft of the servo motor 14 is fixedly connected to one end of the auger 17 through a coupling. The other end of the auger 17 is fixedly connected to one end of the first rotating shaft 15. When the servo motor 14 is started, it drives the auger 17 to rotate, and the material is conveyed into the interior of the screening tank 10 through the feed hopper 13 and the auger 17.
[0033] Specifically, such as Figure 1 and Figure 4 As shown, five sets of stirring plates 16 are fixedly installed on the outer wall of the first rotating shaft 15, and four sets of first clamping grooves 21 are opened inside the screening tank 10. An opening is opened at the bottom of the screening tank 10, and a first discharge port 26 is fixedly installed in the opening. When the auger 17 rotates, it drives the first rotating shaft 15 to rotate, which drives the stirring plates 16 to stir the material.
[0034] Specifically, such as Figure 4 and Figure 6As shown, the screening tank 10 has two sets of first fixed ring plates 22 inside, and four sets of first snap-fit plates 24 are fixedly installed between the outer walls of the two sets of first fixed ring plates 22. The first snap-fit plates 24 are snap-fitted into the inside of the first snap-fit grooves 21. The first fixed ring plates 22 have four sets of second snap-fit grooves 23 inside, and the screening tank 10 has four sets of first screening perforated plates 25 inside, which are fixedly installed into the inside of the second snap-fit grooves 23. The first snap-fit plates 24 are snap-fitted into the inside of the first snap-fit grooves 21, so that the material is centrifugally screened between the four sets of first screening perforated plates 25.
[0035] Based on the above, the structure of the screening tank 10, support 11, first sealing plate 12, feed hopper 13, servo motor 14, first rotating shaft 15, stirring plate 16, auger 17, first fixed ring plate 22, second snap-fit groove 23, first snap-fit plate 24 and first screen hole plate 25 achieves the purpose of conveying and centrifugally screening materials, improves the screening efficiency of the device, facilitates the disassembly and installation of the device, and improves the cleaning efficiency of the device.
[0036] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 1 , Figure 2 and Figure 3 As shown, a first fixing plate 31 is fixedly installed on the outer wall of the second fixing ring plate 27, and a first fixing rod 32 is fixedly installed inside the first fixing plate 31. A sealing cover plate 38 is provided on the outside of the screening tank 10, and a third fixing plate 39 is fixedly installed on the outer wall of the sealing cover plate 38. A fixing sleeve 40 is fixedly installed inside the third fixing plate 39, and the fixing sleeve 40 is fitted onto the outer wall of the first fixing rod 32. Pushing the sealing cover plate 38 causes the fixing sleeve 40 to rotate on the outer wall of the first fixing rod 32, so that the sealing cover plate 38 is tightly attached to the second fixing ring plate 27, and the sealing ring 44 is tightly attached to a set of third fixing ring plates 33.
[0037] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, a sealing ring 44 is fixedly installed on one outer wall of the sealing cover plate 38. A second limiting plate 41 is fixedly installed on the outer wall of the sealing cover plate 38, and a second threaded groove 42 is formed inside the second limiting plate 41. A first limiting plate 29 is fixedly installed on the outer wall of the second fixing ring plate 27, and a first threaded groove 30 is formed inside the first limiting plate 29. A limiting bolt 43 is provided on the outside of the screening tank 10. The limiting bolt 43 is screwed into the second threaded groove 42 and the first threaded groove 30. By rotating the limiting bolt 43, the limiting bolt 43 is screwed into the second threaded groove 42 and the first threaded groove 30 in sequence, so that the sealing cover plate 38 and the second fixing ring plate 27 are tightly attached, thus sealing the screening tank 10.
[0038] In summary, the structure of the screening tank 10, the second fixing ring plate 27, the first fixing plate 31, the first fixing rod 32, the sealing cover plate 38, the third fixing plate 39, the fixing sleeve 40, the second limiting plate 41, the second threaded groove 42, the limiting bolt 43, and the sealing rubber ring 44 achieves the purpose of sealing and fixing the device, improving the sealing effect of the device, improving the stability of the device in use, and optimizing the user experience of the device.
[0039] Working principle: The material enters the screening tank 10 through the feed hopper 13. The servo motor 14 is started, and its output shaft drives the auger 17 to rotate through the coupling. The other end of the auger 17 is connected to the first rotating shaft 15, which in turn drives the first rotating shaft 15 to rotate synchronously, conveying the material from the feed hopper 13 to the inside of the screening tank 10. Five sets of stirring plates 16 are installed on the outer wall of the first rotating shaft 15. When rotating, the stirring plates 16 stir the material, and the material undergoes centrifugal motion inside the screening tank 10. The screening tank 10 is equipped with two sets of first fixed ring plates 22. Their outer walls are engaged with the first engaging grooves 21 inside the screening tank 10 via four sets of first engaging plates 24. Four sets of second engaging grooves 23 are opened inside the first fixed ring plates 22. Four sets of first screening perforated plates 25 are fixedly installed in the second engaging grooves 23. The material is centrifugally screened between the four sets of first screening perforated plates 25. Particles of different sizes pass through different screening perforated plates or remain in the tank according to their size. When the first rotating shaft 15 of the first unblocking section rotates, it drives the second stirring plate 18 fixed to the outer wall to rotate, which in turn drives the scraper 19 to rotate. The cleaning bristles on the outer wall of the scraper 19... Brush 20 cleans and removes material from the inner wall of the first screening orifice plate 25 to prevent particles from clogging the screen holes and ensure smooth screening. Particles that meet the specifications after screening by the first screening orifice plate 25 are discharged through the first discharge port 26 installed in the bottom opening of the screening tank 10. In the second unblocking section, the second fixing ring plate 27 is set at one end of the screening tank 10. Inside it, there are two sets of third fixing ring plates 33. One set is fixed to the inner wall of the second fixing ring plate 27, and the two sets are connected by the second fixing plate 35. A vibration motor 36 is installed at the bottom of the second fixing plate 35. Six sets of damping spring rods 37 are used for support between the two sets of third fixing ring plates 33. The second screening orifice plate 34 is fixed inside the third fixing ring plate 33, and the second discharge port 28 is provided in the bottom opening of the second fixing ring plate 27. The vibration motor 36 is started, driving the two sets of second screen orifice plates 34 to vibrate, causing the accumulated material to be output from the second discharge port 28, avoiding blockage of the discharge port and improving discharge efficiency. This pushes the sealing cover plate 38, causing the outer wall of the fixing sleeve 40, which is fixed to the first fixing rod 32 on the first fixing plate 31 on the outer wall of the first fixing ring plate 22, to rotate, making the sealing cover plate 38 tightly adhere to the second fixing ring plate 27. Simultaneously, the sealing ring 44 tightly adheres to a set of third fixing ring plates 33. Then, the limiting bolt 43 is rotated, sequentially screwing it into the second threaded groove 42 of the second limiting plate 41 on the outer wall of the sealing cover plate 38 and the first threaded groove 30 of the first limiting plate 29 on the outer wall of the second limiting plate 27, ensuring a tight fit between the sealing cover plate 38 and the second fixing ring plate 27, thus sealing the screening tank 10 and preventing material leakage and the entry of external impurities.
[0040] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A centrifugal plastic particle sorting and screening machine, characterized in that, include: Screening tank (10), the screening tank (10) is cylindrical; The unblocking structure includes a first unblocking section and a second unblocking section. The first unblocking section includes a first rotating shaft (15) installed inside the screening tank (10). A second stirring plate (18) is fixedly installed on the outer wall of the first rotating shaft (15). Four sets of scrapers (19) are fixedly installed on the outer wall of the second stirring plate (18). A cleaning brush (20) is fixedly installed on one side of the outer wall of the scraper (19). The second unblocking section includes a second fixing ring plate (27) installed at one end of the screening tank (10). Two sets of third fixing ring plates (33) are installed inside the second fixing ring plate (27). The outer wall of one set of third fixing ring plates (33) is fixedly connected to the inner wall of the second fixing ring plate (27). A second fixing plate (35) is fixedly installed between the two sets of third fixing ring plates (33). A vibration motor (36) is fixedly installed at the bottom of the second fixing plate (35). Six sets of damping spring rods (37) are installed between the two sets of third fixing ring plates (33).
2. The centrifugal plastic particle sorting and screening machine according to claim 1, characterized in that, The second unblocking part also includes a second screening hole plate (34) fixedly installed inside the third fixing ring plate (33). The bottom of the second fixing ring plate (27) has an opening, and a second discharge port (28) is fixedly installed inside the opening.
3. The centrifugal plastic particle sorting and screening machine according to claim 1, characterized in that, Two sets of brackets (11) are fixedly installed on the outer wall of the screening tank (10). A first sealing plate (12) is fixedly installed at the other end of the screening tank (10). A servo motor (14) is fixedly installed on one side of the outer wall of the first sealing plate (12). An opening is provided at the top of the first sealing plate (12). A feed hopper (13) is fixedly installed in the opening. An auger (17) is provided inside the first sealing plate (12). The output shaft of the servo motor (14) is fixedly connected to one end of the auger (17) through a coupling. The other end of the auger (17) is fixedly connected to one end of the first rotating shaft (15).
4. The centrifugal plastic particle sorting and screening machine according to claim 1, characterized in that, Five sets of stirring plates (16) are fixedly installed on the outer wall of the first rotating shaft (15). Four sets of first snap-fit grooves (21) are opened inside the screening tank (10). An opening is opened at the bottom of the screening tank (10), and a first discharge port (26) is fixedly installed inside the opening.
5. The centrifugal plastic particle sorting and screening machine according to claim 1, characterized in that, The screening tank (10) is provided with two sets of first fixed ring plates (22) inside. Four sets of first snap-fit plates (24) are fixedly installed between the outer walls of the two sets of first fixed ring plates (22). The first snap-fit plates (24) are snap-fitted into the inside of the first snap-fit groove (21). Four sets of second snap-fit grooves (23) are opened inside the first fixed ring plates (22). Four sets of first screening hole plates (25) are provided inside the screening tank (10). The first screening hole plates (25) are fixedly installed into the inside of the second snap-fit grooves (23).
6. The centrifugal plastic particle sorting and screening machine according to claim 1, characterized in that, A first fixing plate (31) is fixedly installed on the outer wall of the second fixing ring plate (27). A first fixing rod (32) is fixedly installed inside the first fixing plate (31). A sealing cover plate (38) is provided on the outside of the screening tank (10). A third fixing plate (39) is fixedly installed on the outer wall of the sealing cover plate (38). A fixing sleeve (40) is fixedly installed inside the third fixing plate (39). The fixing sleeve (40) is sleeved and installed on the outer wall of the first fixing rod (32).
7. The centrifugal plastic particle sorting and screening machine according to claim 6, characterized in that, A sealing ring (44) is fixedly installed on one side of the outer wall of the sealing cover (38). A second limiting plate (41) is fixedly installed on the outer wall of the sealing cover (38). A second threaded groove (42) is opened inside the second limiting plate (41). A first limiting plate (29) is fixedly installed on the outer wall of the second fixing ring plate (27). A first threaded groove (30) is opened inside the first limiting plate (29). A limiting bolt (43) is provided on the outside of the screening tank (10). The limiting bolt (43) is screwed into the second threaded groove (42) and the first threaded groove (30).