Plastic particle screening and drying integrated device with good flame retardance
By designing an integrated plastic particle screening and drying device that includes a feeding, drying, and screening mechanism, the problem of material adhesion after cooling in the cold water tank was solved, achieving efficient drying and screening, and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202511711768.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the production of plastic particles, the material adheres after being cooled and drawn in the cold water tank, resulting in low drying and screening efficiency, which affects product quality and production efficiency.
Design a flame-retardant plastic particle screening and drying integrated device, including a feeding and drying mechanism, an agitation mechanism and a screening mechanism. The rotating rod is driven by a forward and reverse motor to achieve rotation and agitation. Combined with a screening pipe and a discharge pipe, the plastic particles are dried and screened.
It improves the drying and screening efficiency of plastic particles, ensures stable particle quality, enhances production efficiency, prevents adhesion and bubble formation, and improves product quality.
Smart Images
Figure CN121447786A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of plastic particle technology, specifically to an integrated device for screening and drying plastic particles with good flame retardancy. Background Technology
[0002] Plastic particles, as one of the important raw materials in modern industry, play a crucial role in various fields. They are typically made from high-molecular polymers through specific processing techniques, resulting in different shapes, sizes, and performance characteristics. There are many types of plastic particles, including polyethylene, polypropylene, and polyvinyl chloride, each with its unique physical and chemical properties, suitable for different applications. During production, plastic particles undergo rigorous screening, drying, and processing to ensure stable quality. High-quality plastic particles possess good flowability, uniformity, and processability, meeting the requirements of various complex molding processes. For example, in plastic product manufacturing, plastic particles are processed into various shapes, such as plastic bottles, plastic bags, and plastic pipe fittings, through processes like injection molding, extrusion, and blow molding. Meanwhile, with increasing environmental awareness, biodegradable plastic particles are constantly being developed, providing new solutions for reducing plastic pollution. The continuous innovation and development of plastic particles will continue to drive progress and sustainable development in various industries. In the production of plastic pellets, two processes are typically involved: cooling in a cold water bath and drawing into fibers, followed by pelletizing in a pelletizer. Because the material tends to stick together due to moisture after cooling and drawing, a drying process is necessary. During the pelletizing process, the pellets vary in size due to the speed of the pelletizing blade and the cooling conditions. Overly large pellets require longer melting time and higher temperatures, leading to reduced production efficiency and higher energy consumption. Conversely, underly small pellets increase the surface area for melting and adhesion, requiring a larger surface area to contact gas and atmospheric pressure, which can easily lead to the formation of more air bubbles. These bubbles can cause voids or surface defects in the product, affecting its appearance and quality. Therefore, screening is necessary to ensure the stability of the plastic pellet product's quality. Summary of the Invention
[0003] To achieve the above objectives, the present invention provides the following technical solution: A flame-retardant plastic particle screening and drying integrated device, comprising a frame, a fixed frame fixedly connected to the top of the frame, a first support rod fixedly connected to the outer surface of the fixed frame, a guide frame fixedly connected to the top of the first support rod, a connecting box fixedly connected to the inner wall of the guide frame, a feeding and drying mechanism fixedly connected to the upper surface of the connecting box, the feeding and drying mechanism including a drying box fixedly connected to the upper surface of the connecting box; an agitation mechanism provided on the inner wall of the fixed frame, the agitation mechanism including a forward and reverse motor fixedly connected to the inner wall of the fixed frame, a rotating rod fixedly connected to the output end of the forward and reverse motor; a discharge pipe fixedly connected to the left side of the upper surface of the guide frame, a screening pipe fixedly connected to the right side of the upper surface of the guide frame, a screening mechanism provided on the outer surface of the screening pipe, the screening mechanism including a fixing strip fixedly connected to the end of the screening pipe away from the guide frame, and a circular slide rail fixedly connected to the end of the fixing strip.
[0004] Preferably, a first sieve plate is fixedly connected to the bottom surface of the inner cavity of the drying box, the first sieve plate is located directly above the sieve tube, a breathable mesh is passed through the upper surface of the drying box, a heating fan is passed through the upper surface of the drying box, and an air guide channel is connected to one end of the heating fan located inside the drying box.
[0005] Preferably, a first limiting box is fixedly connected to the inner wall of the drying box, a first sliding rod is slidably connected to the inner cavity of the first limiting box, a first spring is fixedly connected to the lower surface of the first sliding rod, the bottom end of the first spring is fixedly connected to the bottom surface of the inner cavity of the first limiting box, a connecting plate is fixedly connected to the end of the first sliding rod, and a feed pipe is fixedly connected to the side of the connecting plate away from the first sliding rod, the feed pipe penetrating the drying box.
[0006] Preferably, one end of the rotating rod that passes through and extends into the inner cavity of the drying chamber is fixedly connected to an inclined protrusion 73, and a stop block is fixedly provided on the side of the feed pipe 69 near the inclined protrusion 73. The inclined surface at the top of the inclined protrusion 73 and the bottom of the stop block are intermittently pressed and matched. A one-way bearing is fixedly connected to the outer surface of the rotating rod at one end of the inner cavity of the drying chamber, and a second support rod is fixedly connected to the outer surface of the one-way bearing.
[0007] Preferably, a blocking plate is fixedly connected to one end of the second support rod away from the one-way bearing. An opening is provided on one side of the blocking plate. Limiting tubes are fixedly connected to both sides of the opening. Rotating blocks are rotatably connected to the inner cavities of the two limiting tubes. A stirring plate (79) is fixedly connected between the two rotating blocks. The number of stirring plates is several, and the several stirring plates are evenly distributed.
[0008] Preferably, a sliding sleeve is slidably connected to the outer surface of the circular slide rail, a rotating tube is fixedly connected to the surface of the sliding sleeve, and a discharge pipe is fixedly connected to the end of the rotating tube away from the guide frame.
[0009] Preferably, the screening mechanism further includes a third support rod, which is fixedly connected to the outer surface of the rotating rod. A first conical toothed ring is fixedly connected to the end of the third support rod. A fourth support rod is fixedly connected to the outer surface of the rotating tube. A rotating ring is fixedly connected to the end of the fourth support rod. A second conical toothed ring is fixedly connected to the upper surface of the rotating ring. A brush plate is fixedly connected to the inner ring of the second conical toothed ring. The number of brush plates is several, and the several brush plates are evenly distributed. The brush plates are rubbed and adapted to the outer surface of the screening tube. The first conical toothed ring and the second conical toothed ring mesh with each other.
[0010] Preferably, a brushing mechanism is fixedly connected to the inner wall of the rotating tube. The brushing mechanism includes a second limiting box, which is fixedly connected to the inner wall of the rotating tube. A second sliding rod is slidably connected to the inner cavity of the second limiting box. An extrusion block is fixedly connected to the outer surface of the second sliding rod. A second spring is fixedly connected to the lower surface of the extrusion block. The bottom end of the second spring is fixedly connected to the bottom surface of the inner cavity of the second limiting box. A movable ring is fixedly connected to the top end of the second sliding rod. A rubber ring is fixedly connected to the outer surface of the movable ring. The rubber ring is slidably adapted to the inner wall of the screen tube.
[0011] Preferably, a second screen plate is fixedly connected to the inner ring of the movable ring, a sliding frame is slidably connected to the outer surface of the second sliding rod, a movable frame is fixedly connected to the top of the sliding frame, a push rod is fixedly connected to the upper surface of the movable frame, the push rod is rubbed and adapted to the holes of the second screen plate, a third spring is fixedly connected to the lower surface of the sliding frame, the bottom end of the third spring is fixedly connected to the upper surface of the extrusion block, a corrugated track groove is fixedly connected to the inner wall of the screen tube, and a third sliding rod is fixedly connected to the side of one of the second sliding rods near the corrugated track groove, the end of the third sliding rod is slidably adapted to the inner wall of the corrugated track groove.
[0012] This invention provides an integrated device for screening and drying plastic particles with good flame retardancy. It has the following beneficial effects: By setting up a feeding and drying mechanism, plastic particles that need to be dried and screened can be fed in, and the outer surface of the plastic particles with moisture can be dried, thus preventing the plastic particles from sticking together. By setting up a forward and reverse motor, after the power is connected and the switch is turned on, the rotating rod will rotate, and under control, the rotating rod can achieve the effect of forward and reverse rotation. By setting up a discharge pipe and a screening pipe, the dried plastic sheets and plastic particles can be discharged separately. Larger plastic particles are discharged from the discharge pipe, while standard-sized and smaller plastic particles are fed into the screening pipe. By setting up a screening mechanism, the dried plastic particles can be screened twice. During the shaking of the second screen plate along the screening pipe, in conjunction with the inclined screening pipe, plastic particles with a particle size that meets the standard are directly discharged through the holes on the outer surface of the screening pipe, while smaller plastic particles and impurities pass through the second screen plate and are discharged from the discharge pipe. The entire device has a compact structure and can simultaneously complete the drying and two screening of plastic particles, effectively improving the efficiency of plastic particle production and processing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the external structure of an integrated device for screening and drying plastic particles with good flame retardancy according to the present invention. Figure 2 This is a side view of an integrated device for screening and drying plastic particles with good flame retardancy according to the present invention. Figure 3 This is a schematic diagram of the feeding and drying mechanism of the present invention; Figure 4 This is a partial cross-sectional structural diagram of the feeding and drying mechanism of the present invention; Figure 5 This is a schematic diagram of the stirring mechanism of the present invention; Figure 6 This is a partial structural schematic diagram of an integrated device for screening and drying plastic particles with good flame retardancy according to the present invention. Figure 7 This is a schematic diagram of the stirring mechanism of the present invention; Figure 8 This is a partial cross-sectional structural diagram of the stirring mechanism of the present invention; Figure 9 This is a schematic diagram of the brushing mechanism of the present invention; Figure 10 This is a partial structural diagram of the brushing mechanism of the present invention.
[0014] In the diagram: 1. Frame; 2. Fixed frame; 3. First support rod; 4. Guide frame; 5. Connecting box; 6. Feeding and drying mechanism; 7. Agitating mechanism; 8. Screening pipe; 9. Screening mechanism; 10. Discharge pipe; 11. Collection box; 61. Drying box; 62. Ventilation mesh; 63. Heating fan; 64. First screen plate; 65. First limiting box; 66. First sliding rod; 67. First spring; 68. Connecting plate; 69. Feeding pipe; 610. Air guide channel; 71. Forward and reverse motor; 72. Rotating rod; 73. Inclined protrusion; 74. One-way bearing; 75. Second support rod; 76. Blocking plate; 77. Limiting pipe; 78. Rotating block; 79. 91. Stirring plate; 92. Third support rod; 93. First conical toothed ring; 94. Fixing strip; 95. Circular slide rail; 96. Sliding sleeve; 97. Rotating tube; 98. Brushing mechanism; 99. Fourth support rod; 90. Rotating ring; 910. Second conical toothed ring; 911. Brush plate; 912. Discharge pipe; 971. Second limit box; 972. Second sliding rod; 973. Movable ring; 974. Rubber ring; 975. Second spring; 976. Extrusion block; 977. Third spring; 978. Sliding frame; 979. Movable frame; 9710. Push rod; 9711. Second sieve plate; 9712. Third sliding rod; 9713. Wave track groove. Detailed Implementation
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.
[0016] like Figures 1-10As shown, the present invention provides a technical solution: a flame-retardant plastic particle screening and drying integrated device, including a frame 1, a fixed frame 2 fixedly connected to the top of the frame 1, a first support rod 3 fixedly connected to the outer surface of the fixed frame 2, a guide frame 4 fixedly connected to the top of the first support rod 3, a connecting box 5 fixedly connected to the inner wall of the guide frame 4, and a feeding and drying mechanism 6 fixedly connected to the upper surface of the connecting box 5. The feeding and drying mechanism 6 includes a drying box 61, which is fixedly connected to the upper surface of the connecting box 5. By setting the feeding and drying mechanism 6, plastic particles that need to be dried and screened can be fed in, and plastic particles with damp outer surfaces can be dried, thereby preventing plastic particles from sticking together. An agitation mechanism 7 is set on the inner wall of the fixed frame 2. The agitation mechanism 7 includes a forward and reverse motor 71, which is fixedly connected to the inner wall of the fixed frame 2. A rotating rod 72 is fixedly connected to the output end of the forward and reverse motor 71. By setting the forward and reverse motor 71, the device can be connected to a power source and the switch is turned on. Then, the rotating rod 72 is rotated, and under the control of the forward and reverse switch, the rotating rod 72 can achieve the effect of forward and reverse rotation. The left side of the upper surface of the guide frame 4 is fixedly connected to the discharge pipe 10, and the right side of the upper surface of the guide frame 4 is fixedly connected to the screening pipe 8. The outer surface of the screening pipe 8 is provided with a screening mechanism 9. The screening mechanism 9 includes a fixing strip 93, which is fixedly connected to the end of the screening pipe 8 away from the guide frame 4. The end of the fixing strip 93 is fixedly connected to a circular slide rail 94. By setting the discharge pipe 10 and the screening pipe 8, the dried plastic sheets and plastic particles can be discharged respectively. By setting the screening mechanism 9, the dried plastic particles can be screened, so that the plastic particles that do not meet the particle size standard will be discharged directly through the holes on the outer surface of the screening pipe 8, and the plastic particle impurities on the outer surface of the plastic particles will be shaken out, thereby collecting clean plastic particles. The side of the frame 1 located directly below the screening mechanism 9 is fixedly connected to a collection box 11 for collecting standard plastic particles.
[0017] A first sieve plate 64 is fixedly connected to the bottom surface of the inner cavity of the drying chamber 61. The first sieve plate 64 is located directly above the sieve tube 8. A breathable mesh 62 penetrates the upper surface of the drying chamber 61, and a heating fan 63 penetrates the upper surface of the drying chamber 61. One end of the heating fan 63 located inside the drying chamber 61 is connected to an air guide channel 610. The air outlet of the air guide channel 610 is set along the tangential direction of the air guide channel 610, which can generate a hot airflow rotating along the inner wall of the drying chamber 61. By setting the breathable mesh 62, the airflow in the inner cavity of the drying chamber 61 can be discharged. By setting the heating fan 63, after the power is connected and the switch is turned on, a large amount of hot air can be generated in the inner cavity of the drying chamber 61, thereby evaporating the water vapor on the outer surface of the plastic particles. The inner wall of the drying chamber 61 is fixed. A first limiting box 65 is connected, and a first sliding rod 66 is slidably connected to the inner cavity of the first limiting box 65. A first spring 67 is fixedly connected to the lower surface of the first sliding rod 66, and the bottom end of the first spring 67 is fixedly connected to the bottom surface of the inner cavity of the first limiting box 65. A connecting plate 68 is fixedly connected to the end of the first sliding rod 66, and a feed pipe 69 is fixedly connected to the side of the connecting plate 68 away from the first sliding rod 66. The feed pipe 69 passes through the drying box 61. By setting the first limiting box 65, the first sliding rod 66 can be limited, allowing the first sliding rod 66 to move vertically up and down within the inner cavity of the first limiting box 65. By setting the first spring 67, an upward compressive force can be applied to the bottom end of the first sliding rod 66, thereby causing the first sliding rod 66 to move vertically up and down. Rod 66 drives the feed pipe 69 to move up and down. The feed pipe 69 allows for the placement of plastic particles that need drying and screening. A sloping protrusion 73 is fixedly connected to one end of the rotating rod 72, which extends into the inner cavity of the drying chamber 61. A stop block is fixedly installed on the side of the feed pipe 69 near the sloping protrusion 73. The sloping surface at the top of the sloping protrusion 73 intermittently presses against the bottom of the stop block. A one-way bearing 74 is fixedly connected to the outer surface of the rotating rod 72 at one end of the inner cavity of the drying chamber 61. A second support rod 75 is fixedly connected to the outer surface of the one-way bearing 74. By setting the sloping protrusion 73 at the top of the rotating rod 72, the sloping protrusion 73 intermittently presses against the stop block as the rotating rod 72 rotates driven by the reversible motor 71. The material is squeezed by the block, causing the feed pipe 69 to sway up and down, thus accelerating the outflow of material from the inner cavity of the feed pipe 69. By incorporating a one-way bearing 74, when the rotating rod 72 is controlled by the reversible motor 71 to rotate in the forward direction, the one-way bearing 74 will not drive the second support rod 75 to rotate. However, when the rotating rod 72 is controlled by the reversible motor 71 to rotate in the reverse direction, the one-way bearing 74 and the second support rod 75 will rotate. A blocking plate 76 is fixedly connected to the end of the second support rod 75 away from the one-way bearing 74. An opening is provided on one side of the blocking plate 76, and limit tubes 77 are fixedly connected to both sides of the opening. Rotating blocks 78 are rotatably connected to the inner cavities of both limit tubes 77, and an agitator 79 is fixedly connected between the two rotating blocks 78.The number of agitator plates 79 is several, and the agitator plates 79 are evenly distributed. By setting a blocking plate 76, the leakage hole at the bottom of the drying chamber 61 can be blocked, thereby preventing plastic particles and plastic sheets from leaking out of the inner cavity of the drying chamber 61. By setting a limiting tube 77, the rotating block 78 can be limited, so that the rotating block 78 can drive the agitator plates 79 to rotate, thereby agitating the plastic particles in the inner cavity of the drying chamber 61. In use, the operator first connects the heating fan 63 to the power supply and turns on the switch of the heating fan 63, thereby raising the temperature in the inner cavity of the drying chamber 61. Then, the forward and reverse motor 71 is connected to the power supply and the switch of the forward and reverse motor 71 is turned on, and the rotating rod 72 is controlled to rotate forward. Then, the plastic particles that need to be dried and screened are placed into the inner cavity of the feed pipe 69, and the rotating rod 72 drives the inclined plane When the protrusion 73 rotates, it intermittently presses against the abutment, causing the first sliding rod 66 on the outer surface of the feed pipe 69 to slide up and down within the inner cavity of the first limiting box 65. This causes the feed pipe 69 to sway up and down, accelerating the material's passage through the feed pipe 69 onto the upper surface of the first screen plate 64. After drying, the plastic particles become distinct and pass through the first screen plate 64. Once the plastic particles and sheets are screened, the operator controls the forward / reverse motor 71 to reverse the rotation of the rotating rod 72. This causes the one-way bearing 74 to rotate the second support rod 75, which in turn causes the blocking plate 76 and the stirring plate 79 to agitate the material inside the drying chamber 61. Finally, larger particles such as plastic sheets are moved to the holes at the bottom of the drying chamber 61 and leak into the inner cavity of the discharge pipe 10.
[0018] A sliding sleeve 95 is slidably connected to the outer surface of the circular slide rail 94. A rotating tube 96 is fixedly connected to the surface of the sliding sleeve 95. A discharge pipe 912 is fixedly connected to the end of the rotating tube 96 away from the guide frame 4. By setting the circular slide rail 94, the sliding sleeve 95 can be limited, so that the sliding sleeve 95 can drive the rotating tube 96 to rotate stably. By setting the discharge pipe 912, the screened plastic particles in the inner cavity of the rotating tube 96 can be discharged. The screening mechanism 9 also includes a third support rod 91, which is fixedly connected to the outer surface of the rotating rod 72. A first conical toothed ring 92 is fixedly connected to the end of the third support rod 91. A fourth support rod 98 is fixedly connected to the outer surface of the rotating tube 96. A rotating tube 912 is fixedly connected to the end of the fourth support rod 98. A second conical toothed ring 910 is fixedly connected to the upper surface of the rotating ring 99. A brush plate 911 is fixedly connected to the inner ring of the second conical toothed ring 910. Several brush plates 911 are evenly distributed and rub against the outer surface of the screen tube 8. A first conical toothed ring 92 meshes with the second conical toothed ring 910. By setting the first conical toothed ring 92, when the rotating rod 72 rotates, the first conical toothed ring 92 rotates, thereby driving the second conical toothed ring 910 to rotate, thus causing the rotating ring 99, the fourth support rod 98, and the rotating tube 96 to rotate. By setting the brush plates 911, when the second conical toothed ring 910 rotates, the brush plates can clean the outer surface of the screen tube 8. The slag is scraped off. A brushing mechanism 97 is fixedly connected to the inner wall of the rotating tube 96. The brushing mechanism 97 includes a second limiting box 971, which is fixedly connected to the inner wall of the rotating tube 96. A second sliding rod 972 is slidably connected to the inner cavity of the second limiting box 971. A pressing block 976 is fixedly connected to the outer surface of the second sliding rod 972. A second spring 975 is fixedly connected to the lower surface of the pressing block 976. The bottom end of the second spring 975 is fixedly connected to the bottom surface of the inner cavity of the second limiting box 971. A movable ring 973 is fixedly connected to the top end of the second sliding rod 972. A rubber ring 974 is fixedly connected to the outer surface of the movable ring 973. The rubber ring 974 slides and adapts to the inner wall of the screen tube 8. By setting the second limiting box 971, the brushing mechanism can be adjusted. The second sliding rod 972 is limited, allowing it to move vertically up and down within the cavity of the second limiting box 971. A second spring 975 compresses the second sliding rod 972, causing it to rebound after sliding within the cavity of the second limiting box 971. A movable ring 973 and a rubber ring 974 scrape off material adhering to the inner wall of the screen tube 8 as the second sliding rod 972 moves up and down. A second screen plate 9711 is fixedly connected to the inner ring of the movable ring 973, and a sliding frame 978 is slidably connected to the outer surface of the second sliding rod 972. A movable frame 979 is fixedly connected to the top of the sliding frame 978.A push rod 9710 is fixedly connected to the upper surface of the movable frame 979. The push rod 9710 is frictionally fitted with the holes of the second screen plate 9711. A third spring 977 is fixedly connected to the lower surface of the sliding frame 978. The bottom end of the third spring 977 is fixedly connected to the upper surface of the extrusion block 976. By setting the second screen plate 9711, the second sliding rod 972 can rotate and shake when the rotating tube 96 rotates, thereby causing the plastic particles located in the inner cavity of the second screen plate 9711 to shake, thus shaking off the particles and impurities attached to the outer surface of the plastic particles. By setting the push rod 9710, the push rod can be moved relative to the second screen plate 9711. 9710 squeezes the holes of the second screen plate 9711 to prevent material from clogging the holes. A corrugated track groove 9713 is fixedly connected to the inner wall of the screening tube 8. A third sliding rod 9712 is fixedly connected to one side of the second sliding rod 972 near the corrugated track groove 9713. The other end of the third sliding rod 9712 slides within the inner wall of the corrugated track groove 9713. By using the corrugated track groove 9713 and the third sliding rod 9712, the third sliding rod 9712 can slide within the corrugated track groove 9713 when the second sliding rod 972 rotates, thus allowing the second sliding rod 972 to move up and down significantly.
[0019] Working principle: During use, the operator first connects the heating fan 63 to the power supply and turns it on, thereby raising the temperature inside the drying chamber 61. Then, the operator connects the forward / reverse motor 71 to the power supply and turns it on, controlling the rotating rod 72 to rotate forward. Next, the plastic particles to be dried and screened are placed into the inner cavity of the feed pipe 69. When the rotating rod 72 drives the inclined protrusion 73 to rotate, the inclined protrusion 73 intermittently contacts and presses against the abutment on the side of the feed pipe 69, causing the first sliding rod 66 on the outer surface of the feed pipe 69 to slide within the inner cavity of the first limiting box 65. The material inside the feed pipe 69 is agitated and falls onto the upper surface of the first screen plate 64. Under the influence of the airflow generated by the heating fan 63 rotating along the air guide channel 610, the plastic particles continuously rotate and tumble in the drying chamber 61, accelerating the evaporation of moisture from the surface of the plastic particles and expelling the humid air through the ventilation mesh. After drying, the plastic particles are clearly separated and pass through the first screen plate 64. When larger plastic particles are screened out, the operator controls the forward / reverse motor 71 to reverse the rotation of the rotating rod 72, which in turn causes the one-way bearing 74 to drive the second support rod 75 to rotate. This causes the blocking plate 76 and the stirring plate 79 to agitate the material inside the drying chamber 61, ultimately moving larger plastic particles to the holes at the bottom of the drying chamber 61 and leaking into the inner cavity of the discharge pipe 10. When the rotating rod 72 drives the third support rod 91 and the first conical toothed ring 92 to rotate, the first conical toothed ring 92 will drive the second conical toothed ring 910 to rotate, thereby causing the sliding sleeve 95 to move on the outer surface of the circular slide rail 94, which in turn causes the rotating tube 96 to rotate. When the rotating tube 96 rotates, the third sliding rod 9712 on the second sliding rod 972 moves in the wave track groove 97. The sliding mechanism 972, movable ring 973, and second sieve plate 9711 move up and down together, shaking the plastic particles on the upper surface of the second sieve plate 9711. Under the pressure of the push rod 9710, smaller plastic particles pass through the second sieve plate 9711 and are discharged from the discharge pipe 912. During the shaking process, the plastic particles are lifted up by the second sieve plate 9711 and repeatedly roll along the inner wall of the sieve pipe 8. Plastic particles that meet the standards are output from the holes on the side wall of the sieve pipe 8 and finally fall into the inner cavity of the collection box 11, thus achieving the effect of drying and cleaning the plastic particles.
[0020] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A flame-retardant plastic particle screening and drying integrated device, comprising a frame (1), wherein a fixing frame (2) is fixedly connected to the top of the frame (1), characterized in that, A first support rod (3) is fixedly connected to the outer surface of the fixed frame (2). A guide frame (4) is fixedly connected to the top of the first support rod (3). A connecting box (5) is fixedly connected to the inner wall of the guide frame (4). A feeding drying mechanism (6) is fixedly connected to the upper surface of the connecting box (5). The feeding drying mechanism (6) includes a drying box (61), which is fixedly connected to the upper surface of the connecting box (5). An agitation mechanism (7) is provided on the inner wall of the fixed frame (2). The agitation mechanism (7) includes a forward and reverse motor (71), which is fixedly connected to the inner wall of the fixed frame (2). At the output end of the forward and reverse motor (71), a rotating rod (72) is fixedly connected; a discharge pipe (10) is fixedly connected to the left side of the upper surface of the guide frame (4), and a screening pipe (8) is fixedly connected to the right side of the upper surface of the guide frame (4). A screening mechanism (9) is provided on the outer surface of the screening pipe (8). The screening mechanism (9) includes a fixing strip (93). The fixing strip (93) is fixedly connected to one end of the screening pipe (8) away from the guide frame (4). A circular slide rail (94) is fixedly connected to the end of the fixing strip (93). A collection box (11) is fixedly connected to the side of the frame (1) directly below the screening mechanism (9).
2. The integrated screening and drying device for plastic particles with good flame retardancy according to claim 1, characterized in that: The bottom surface of the inner cavity of the drying box (61) is fixedly connected to a first sieve plate (64), which is located directly above the sieve tube (8). The upper surface of the drying box (61) is permeated with a breathable mesh (62), and the upper surface of the drying box (61) is permeated with a heating fan (63). One end of the heating fan (63) located inside the drying box (61) is connected to an air guide channel (610).
3. The integrated screening and drying device for plastic particles with good flame retardancy according to claim 2, characterized in that: A first limiting box (65) is fixedly connected to the inner wall of the drying box (61). A first sliding rod (66) is slidably connected to the inner cavity of the first limiting box (65). A first spring (67) is fixedly connected to the lower surface of the first sliding rod (66). The bottom end of the first spring (67) is fixedly connected to the bottom surface of the inner cavity of the first limiting box (65). A connecting plate (68) is fixedly connected to the end of the first sliding rod (66). A feed pipe (69) is fixedly connected to the side of the connecting plate (68) away from the first sliding rod (66). The feed pipe (69) passes through the drying box (61).
4. The integrated screening and drying device for plastic particles with good flame retardancy according to claim 3, characterized in that: The rotating rod (72) extends through and into the inner cavity of the drying chamber (61) and is fixedly connected to one end of a sloping protrusion (73). The feed pipe (69) is fixedly provided with a stop block on the side near the sloping protrusion (73). The sloping surface at the top of the sloping protrusion (73) and the bottom of the stop block are intermittently pressed and matched. A one-way bearing (74) is fixedly connected to the outer surface of the rotating rod (72) at one end of the inner cavity of the drying chamber (61). A second support rod (75) is fixedly connected to the outer surface of the one-way bearing (74).
5. The integrated screening and drying device for plastic particles with good flame retardancy according to claim 4, characterized in that: A blocking plate (76) is fixedly connected to one end of the second support rod (75) away from the one-way bearing (74). An opening is provided on one side of the blocking plate (76). Limiting tubes (77) are fixedly connected to both sides of the opening. Rotating blocks (78) are rotatably connected to the inner cavities of the two limiting tubes (77). A stirring plate (79) is fixedly connected between the two rotating blocks (78). There are several stirring plates (79), and the several stirring plates (79) are evenly distributed.
6. The integrated screening and drying device for plastic particles with good flame retardancy according to claim 1, characterized in that: The outer surface of the circular slide rail (94) is slidably connected to a sliding sleeve (95), and a rotating tube (96) is fixedly connected to the surface of the sliding sleeve (95). The end of the rotating tube (96) away from the guide frame (4) is fixedly connected to a discharge tube (912).
7. The integrated screening and drying device for plastic particles with good flame retardancy according to claim 6, characterized in that: The screening mechanism (9) further includes a third support rod (91), which is fixedly connected to the outer surface of the rotating rod (72). A first conical toothed ring (92) is fixedly connected to the end of the third support rod (91). A fourth support rod (98) is fixedly connected to the outer surface of the rotating tube (96). A rotating ring (99) is fixedly connected to the end of the fourth support rod (98). A second conical toothed ring (910) is fixedly connected to the upper surface of the rotating ring (99). A brush plate (911) is fixedly connected to the inner ring of the second conical toothed ring (910). There are several brush plates (911), and the brush plates (911) are evenly distributed. The brush plates (911) are rubbed against the outer surface of the screening tube (8). The first conical toothed ring (92) meshes with the second conical toothed ring (910).
8. The integrated screening and drying device for plastic particles with good flame retardancy according to claim 7, characterized in that: A brushing mechanism (97) is fixedly connected to the inner wall of the rotating tube (96). The brushing mechanism (97) includes a second limiting box (971). The second limiting box (971) is fixedly connected to the inner wall of the rotating tube (96). A second sliding rod (972) is slidably connected to the inner cavity of the second limiting box (971). An extrusion block (976) is fixedly connected to the outer surface of the second sliding rod (972). A second spring (975) is fixedly connected to the lower surface of the extrusion block (976). The bottom end of the second spring (975) is fixedly connected to the bottom surface of the inner cavity of the second limiting box (971). A movable ring (973) is fixedly connected to the top end of the second sliding rod (972). A rubber ring (974) is fixedly connected to the outer surface of the movable ring (973). The rubber ring (974) is slidably adapted to the inner wall of the screen tube (8).
9. The integrated screening and drying device for plastic particles with good flame retardancy according to claim 8, characterized in that: A second sieve plate (9711) is fixedly connected to the inner ring of the movable ring (973). A sliding frame (978) is slidably connected to the outer surface of the second sliding rod (972). A movable frame (979) is fixedly connected to the top of the sliding frame (978). A push rod (9710) is fixedly connected to the upper surface of the movable frame (979). The push rod (9710) is rubbed and adapted to the holes of the second sieve plate (9711). The lower surface of the sliding frame (978) A third spring (977) is fixedly connected, and the bottom end of the third spring (977) is fixedly connected to the upper surface of the extrusion block (976). A wave track groove (9713) is fixedly connected to the inner wall of the screen tube (8). A third sliding rod (9712) is fixedly connected to one of the second sliding rods (972) near the side of the wave track groove (9713). The end of the third sliding rod (9712) is slidably adapted to the inner wall of the wave track groove (9713).