A waste plastic bottle crushing and hot washing device

Abstract

The application belongs to the technical field of waste plastics and discloses a waste plastic bottle piece hot washing device after crushing, which comprises a support, a treatment bin is installed on the top of the support, further comprises: a hot washing assembly is arranged in the inside of the treatment bin and is used for hot washing the waste plastic bottle pieces after crushing. The arc-shaped filter plate is arranged in the arc-shaped through slot in the side wall of the cylinder frame, the bottle pieces are limited in the cylinder and are immersed in the hot washing water, the low-density bottle pieces which originally float on the liquid surface cannot be separated from the hot washing water, the cleaning dead angle of the floating layer is eliminated in structure, the arc-shaped stirring plate overturns the bottle pieces in the circumferential direction, the bottle pieces in the floating layer and the bottom layer are forced to mix and stir, the natural stratification caused by the density difference is overcome, the long-distance migration and accumulation of the bottle pieces in the axial direction to form the dead angle is avoided, and the cleaning blind area of the low-density bottle piece floating layer and accumulation is eliminated in the fundamental structural design.

Description

Technical Field

[0001] This invention belongs to the field of waste plastic technology, specifically a device for hot washing of crushed waste plastic bottles. Background Technology

[0002] Waste plastic bottle processing includes steps such as sorting, wet crushing, hot washing, rinsing, dehydration, and recycling. Hot washing after crushing refers to the process of thoroughly cleaning the pre-crushed plastic fragments (into bottle flakes) under the combined action of specific high-temperature hot water (usually accompanied by cleaning agents / caustic soda) and mechanical agitation / friction. This is primarily used to remove adhesives used on bottle labels (especially hot melt adhesives and pressure-sensitive adhesives used on PVC bottles or some PET bottles), which are extremely difficult to remove at room temperature and must be softened, dissolved, or emulsified through high temperatures and alkaline solutions.

[0003] Currently, after waste plastic bottles are crushed, they are typically cleaned using a hot washing machine. Existing hot washing machines have an internal stirring mechanism (axial stirring blades, radial baffles, etc.) to agitate the bottle flakes. However, due to differences in density among the flakes, some float on the surface of the hot washing solution while others sink to the bottom, creating a distinct stratification. This phenomenon makes it difficult for the stirring mechanism to achieve uniform and thorough agitation and hot washing of the flakes at different liquid levels. The floating and sinking layers easily become cleaning dead zones, severely affecting the overall hot washing effect. Therefore, this paper proposes a hot washing device for crushed waste plastic bottles. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a hot washing device for crushed waste plastic bottles, which solves the problem that in existing waste plastic bottles, due to the different densities of the bottle fragments, some float and some sink during hot washing, forming stratification. This makes it difficult for the stirring mechanism to evenly agitate all the bottle fragments, resulting in insufficient cleaning and affecting the overall hot washing effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hot washing device for crushed waste plastic bottles, comprising a support, a processing chamber mounted on the top of the support, and further comprising: A hot washing assembly is disposed inside the processing chamber and is used to hot wash the crushed waste plastic bottle fragments. A circulation component is disposed inside the processing chamber and is used to drive the hot washing component to agitate the bottle flakes and drive the hot washing water to circulate; a first motor is disposed on the top of the support and the output end of the first motor is connected to the circulation component for transmission. A filtration device, one end of which is connected to the bottom of the treatment chamber and the other end of which is connected to the circulation component, is used to filter the hot wash water inside the treatment chamber; The hot washing assembly includes a cylindrical frame fixed inside the processing chamber by a connecting frame. The outer side of the cylindrical frame is provided with arc-shaped through grooves at equal intervals along the circumferential direction, and an arc-shaped filter plate is installed in the arc-shaped through grooves on the outer side of the cylindrical frame. The cylindrical frame and the arc-shaped filter plate form a cylinder. The two ends of the cylinder are rotatably fitted with transmission rings. The transmission rings are rotatably engaged with the inner wall of the cylindrical frame. The cylindrical frame is provided with inlet and outlet pipes. The inlet and outlet pipes pass through the side wall of the processing chamber and the side wall of the cylindrical frame in sequence and communicate with the inside of the cylinder. An arc-shaped stirring plate is fixed between the two drive rings, and the drive rings are connected to the circulation assembly.

[0006] Preferably, the inner wall of the cylinder is fixedly fitted with partition rings at equal intervals, which divide the interior of the cylinder into several stirring chambers.

[0007] Preferably, the outer end of the arc-shaped stirring plate is provided with a slot adapted to the partition ring, and the arc-shaped stirring plate passes through the slot to pass through the partition ring and rotates synchronously in each stirring chamber.

[0008] Preferably, the circulation assembly includes a transmission spindle mounted on the output end of a first motor at the top of the processing chamber, and the bottom of the transmission spindle is rotatably supported on the bottom of the processing chamber by a support frame.

[0009] Preferably, the lower end of the support frame is provided with a plurality of support legs, and a gap is formed between the support legs for the passage of heated washing water, and a drain pipe is provided at the bottom of the treatment chamber.

[0010] Preferably, the transmission mandrel has an axially penetrating cavity inside, and spray holes are distributed on the section of the transmission mandrel located inside the cylinder, the spray holes communicating with the cavity inside the transmission mandrel; The transmission spindle is fixedly connected to two transmission rings; The upper end of the transmission mandrel is provided with rectangular through slots at equal intervals along the circumferential direction, and a connecting piece is rotatably sleeved on the upper end of the transmission mandrel, the connecting piece covering the outside of the rectangular through slot.

[0011] Preferably, the inlet end of the filtration device is connected to the drain pipe, and the outlet end of the filtration device is connected to the docking piece.

[0012] Preferably, a valve plate assembly is provided on the cylindrical frame; The valve plate assembly includes a core rod disposed on the cylindrical frame, and an arc-shaped valve plate is mounted on the outside of the core rod; The upper transmission ring is mesh-like; The arc-shaped valve plate corresponds to the arc-shaped filter plate. In the initial state, the arc-shaped valve plate does not contact the outer wall of the arc-shaped filter plate, and the arc-shaped filter plate is in a conductive state. When the arc-shaped valve plate is attached to the outside of the arc-shaped filter plate, the cylinder is in a closed state.

[0013] Preferably, a first transmission gear is installed on the top of the core rod, and an annular frame is provided at the upper end of the processing chamber. The inner wall of the annular frame is provided with an arc-shaped toothed plate that meshes with the first transmission gear, and the arc-shaped toothed plate corresponds to the first transmission gear.

[0014] Preferably, the outer side of the ring frame is provided with teeth, a second transmission gear that meshes with the teeth is installed on the processing chamber, and a second motor that drives the second transmission gear is provided on the top of the processing chamber. The second motor is a forward and reverse motor.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention uses an arc-shaped filter plate with an arc-shaped groove on the side wall of a cylindrical frame to confine the flakes inside the cylinder and immerse them in hot washing water. This prevents the low-density flakes, which would normally float on the surface, from escaping the hot washing water, thus structurally eliminating the cleaning dead zones of the floating layer. The arc-shaped stirring plate rotates the flakes along the circumference, forcibly mixing and agitating the flakes in the floating and settling layers. This overcomes the natural stratification caused by density differences and prevents the flakes from migrating and accumulating over long distances in the axial direction, forming dead zones. The fundamental structural design eliminates the cleaning blind spots of the low-density flake floating layer and accumulation.

[0016] This invention integrates the driving agitation and water circulation onto the same transmission spindle. The transmission spindle serves as both the drive shaft for agitation and the water delivery channel for the circulating water, simplifying the equipment structure, reducing axial space occupation, and achieving a compact structure. The docking part is rotatably sleeved on the upper end of the transmission spindle, covering the outside of the rectangular through groove, ensuring a sealed connection between the fixed pipeline of the filtration equipment and the rotating transmission spindle, ensuring that hot washing water can still stably enter the cavity while the transmission spindle is rotating—integrating the two major functions of power transmission and fluid delivery into one, taking into account both functional integration and reliable sealing.

[0017] The valve plate assembly of the present invention uses a second motor to drive the arc-shaped valve plate to alternately rotate forward and reverse, controlling the opening and closing state of the cylinder. This allows the hot wash water to generate a dual agitation effect on the bottle flakes during the injection and discharge process. The water flow generated during the drainage process and the counter-rotation of the arc-shaped valve plate work together to achieve continuous dynamic agitation of the bottle flakes without the need for additional stirring elements, further enhancing the uniformity of hot washing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a top view of the cross-sectional structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the disassembled structure of the valve plate assembly of the present invention; Figure 6 This is a schematic diagram of the disassembled structure of the hot washing assembly of the present invention; Figure 7 This is a schematic diagram of the combined structure of the hot washing component and the circulation component of the present invention; Figure 8 This is a schematic diagram showing the disassembled structure of the hot washing component and the circulation component of the present invention.

[0019] In the diagram: 1. Support; 2. Processing chamber; 3. Filtration equipment; 4. Valve plate assembly; 41. Arc-shaped valve plate; 42. Core rod; 43. First transmission gear; 44. Ring frame; 45. Arc-shaped toothed plate; 46. Tooth; 47. Second transmission gear; 5. Hot washing assembly; 51. Cylindrical frame; 52. Arc-shaped filter plate; 53. Inlet / outlet pipe; 54. Transmission ring; 55. Arc-shaped stirring plate; 56. Connecting frame; 57. Groove; 58. Separating ring; 6. Circulation assembly; 61. Transmission spindle; 62. Spray hole; 63. Rectangular through groove; 64. Connecting part; 65. Support frame; 66. Drain pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 8 As shown, the present invention provides a hot washing device for crushed waste plastic bottles, including a support 1, a processing chamber 2 installed on the top of the support 1, and further including: Hot washing assembly 5 is located inside the processing chamber 2 and is used to hot wash the crushed waste plastic bottle pieces. The circulation component 6 is located inside the processing chamber 2 and is used to drive the hot washing component 5 to agitate the bottle flakes and drive the hot washing water to circulate. The top of the support 1 is equipped with a first motor, and the output end of the first motor is connected to the circulation component 6 for transmission. The filter device 3 is connected at one end to the bottom of the treatment chamber 2 and at the other end to the circulation component 6, and is used to filter the hot wash water inside the treatment chamber 2. The hot washing assembly 5 includes a cylindrical frame 51 fixed inside the processing chamber 2 by a connecting frame 56. The outer side of the cylindrical frame 51 is provided with arc-shaped through grooves at equal intervals along the circumferential direction, and an arc-shaped filter plate 52 is installed in the arc-shaped through grooves on the outer side of the cylindrical frame 51. The cylindrical frame 51 and the arc-shaped filter plate 52 form a cylinder. The two ends of the cylinder are rotatably fitted with transmission rings 54. The transmission rings 54 are rotatably engaged with the inner wall of the cylindrical frame 51. The outside of the cylindrical frame 51 is provided with inlet and outlet pipes 53. The inlet and outlet pipes 53 pass through the side wall of the processing chamber 2 and the side wall of the cylindrical frame 51 in sequence, and communicate with the inside of the cylinder. An arc-shaped stirring plate 55 is fixed between the two drive rings 54, and the drive rings 54 are connected to the circulation assembly 6.

[0022] The inner wall of the cylinder is fixedly fitted with partition rings 58 at equal intervals, which divide the inside of the cylinder into several stirring chambers.

[0023] The outer end of the arc-shaped stirring plate 55 is provided with a slot 57 that is adapted to the partition ring 58. The arc-shaped stirring plate 55 passes through the slot 57 and the partition ring 58, and rotates synchronously in each stirring chamber.

[0024] The crushed waste plastic bottle flakes are injected into the cylinder formed by the cylindrical frame 51 and the arc-shaped filter plate 52 through the feed pipe 53, and hot washing water is injected. Two transmission rings 54 block the openings at both ends of the cylinder to axially limit the bottle flakes. The arc-shaped filter plate 52 is opened in the arc-shaped through groove on the side wall of the cylindrical frame 51, allowing the hot washing water to enter and exit the cylinder but preventing the bottle flakes from passing through. This confines the bottle flakes inside the cylinder and immerses them in the hot washing water, so that the low-density bottle flakes that would normally float on the liquid surface cannot leave the hot washing water, thus structurally eliminating the cleaning dead zone of the floating layer.

[0025] The first motor drives the circulation component 6 to rotate. The circulation component 6 drives the two transmission rings 54 and the arc-shaped stirring plate 55 fixed between the transmission rings to rotate synchronously. When the arc-shaped stirring plate 55 rotates with the transmission rings, its arc surface pushes the bottle flakes in the cylinder to flip along the circumferential direction, so that the floating layer and the settling layer of bottle flakes are forcibly mixed and stirred in the confined cylindrical space, overcoming the natural stratification caused by density differences and realizing uniform stirring of bottle flakes at different liquid levels.

[0026] The cylindrical inner wall is fixed with partition rings 58 at equal intervals, which divide the inside of the cylinder into several stirring chambers. The arc-shaped stirring plate 55 passes through the partition rings 58 through the slot 57 at its outer end and rotates synchronously in each stirring chamber. This prevents the bottle flakes from migrating and accumulating over a long distance in the axial direction of the cylinder, ensuring that the bottle flakes in each stirring chamber are fully stirred and eliminating cleaning dead corners in the axial direction.

[0027] The circulation component 6 drives the hot wash water to circulate. The hot wash water at the bottom of the treatment chamber 2 is filtered by the filter device 3 and then flows back to the circulation component 6. The filtered hot wash water re-enters the cylinder, continuously replenishing the clean hot wash water and removing the dirt generated during cleaning, maintaining the cleanliness and heat exchange efficiency of the hot wash water, and ensuring the continuity of the hot wash effect.

[0028] like Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the circulation assembly 6 includes a transmission spindle 61 mounted on the output end of the first motor at the top of the processing chamber 2, and the bottom of the transmission spindle 61 is rotatably supported on the bottom of the processing chamber 2 by a support frame 65. The lower end of the support frame 65 is provided with several support legs, and a gap is formed between the support legs for the passage of heated washing water. The bottom of the treatment chamber 2 is provided with a drain pipe 66. The transmission spindle 61 has an axially penetrating cavity inside, and spray holes 62 are distributed on the section of the transmission spindle 61 located inside the cylinder. The spray holes 62 are connected to the cavity inside the transmission spindle 61. The transmission spindle 61 is fixedly connected to the two transmission rings 54; The upper end of the transmission spindle 61 is provided with rectangular through slots 63 at equal intervals along the circumferential direction, and a connecting piece 64 is rotatably sleeved on the upper end of the transmission spindle 61, covering the outer side of the rectangular through slots 63. The inlet end of the filter device 3 is connected to the drain pipe 66, and the outlet end of the filter device 3 is connected to the docking part 64.

[0029] Driven by the first motor, the transmission spindle 61 of the circulation component 6 rotates, causing the two transmission rings 54 and the arc-shaped stirring plate 55 to rotate synchronously, thus agitating the bottle flakes. At the same time, the hot wash water in the treatment chamber 2 enters the filtration device 3 through the drain pipe 66 under the action of gravity. After filtering and removing the dirt generated during cleaning, the filtered hot wash water enters the cavity of the transmission spindle 61 through the docking part 64 and the rectangular through groove 63 in sequence. Then, it is sprayed into the inside of the cylinder through the spray hole 62 located on the section of the transmission spindle. The driving agitation and water circulation are integrated on the same transmission spindle. The transmission spindle serves as both the transmission shaft for agitation and the water conveying channel for the circulating water, achieving a compact structure. The docking part 64 is rotatably sleeved on the upper end of the transmission spindle 61, covering the outside of the rectangular through groove 63, so that the fixed pipeline of the filtration device 3 and the rotating transmission spindle 61 are kept in sealed communication, ensuring that the hot wash water can still stably enter the cavity while the transmission spindle is rotating.

[0030] The water jet from nozzle 62 exerts an impact force on the bottle flakes inside the cylinder, pushing them through the gap between the separator ring 58 and the arc-shaped stirring plate 55, and distributing them evenly in each stirring chamber. The impact force of the water jet promotes the migration and dispersion of the bottle flakes between the stirring chambers. Combined with the tumbling action of the arc-shaped stirring plate, this ensures that the bottle flakes in each stirring chamber can fully contact the flowing hot washing water, further eliminating stratification and cleaning dead zones caused by density differences. At the same time, the through groove on the connecting frame 56 allows the hot washing water in the cylinder to circulate internally and externally with the hot washing water in the treatment chamber, maintaining the uniformity of the hot washing water temperature and cleanliness.

[0031] like Figure 5 As shown, a valve plate assembly 4 is provided on the cylindrical frame 51; The valve plate assembly 4 includes a core rod 42 disposed on a cylindrical frame 51, and an arc-shaped valve plate 41 is mounted on the outside of the core rod 42; The upper transmission ring 54 is mesh-like, while the lower transmission ring 54 is solid. The arc-shaped valve plate 41 corresponds to the arc-shaped filter plate 52. In the initial state, the arc-shaped valve plate 41 does not contact the outer wall of the arc-shaped filter plate 52, and the arc-shaped filter plate 52 is in a conductive state. When the arc-shaped valve plate 41 is attached to the outside of the arc-shaped filter plate 52, the cylinder is in a closed state. The top of the core rod 42 is equipped with a first transmission gear 43, and the upper end of the processing chamber 2 is provided with an annular frame 44. The inner wall of the annular frame 44 is provided with an arc-shaped toothed plate 45 that meshes with the first transmission gear 43. The arc-shaped toothed plate 45 corresponds to the first transmission gear 43. The ring frame 44 is provided with teeth 46 on its outside. A second transmission gear 47 that meshes with the teeth 46 is installed on the processing chamber 2. A second motor that drives the second transmission gear 47 is provided on the top of the processing chamber 2. The second motor is a forward and reverse motor.

[0032] In the initial state, the arc-shaped valve plate 41 does not contact the outer wall of the arc-shaped filter plate 52. The spray hole 62 injects circulating hot washing water into the cylinder. The water flow pushes the bottle flakes to adhere to the inner wall of the arc-shaped filter plate 52, forming a thin layer distribution. The driving force of the circulating hot washing water makes the bottle flakes evenly adhere to the inner wall of the filter plate, creating conditions for the hot washing liquid to fully contact the bottle flakes.

[0033] The second motor drives the second transmission gear 47 to rotate, which in turn drives the ring frame 44 to rotate via the teeth 46. The transmission ring 44 rotates synchronously with the second transmission gear 47. The arc-shaped toothed plate 45 on the inner wall of the transmission ring 44 drives the first transmission gear 43 to rotate, which in turn drives the core rod 42 and the arc-shaped valve plate 41 to rotate, so that the arc-shaped valve plate 41 gradually fits against the outside of the arc-shaped filter plate 52. By covering the outer wall of the filter plate with the arc-shaped valve plate, the airflow channel on the outside of the filter plate is cut off.

[0034] As the circulating hot wash water continuously enters the cylinder, the water level gradually rises. The bottle flakes lose the thrust of the water flow and detach from the inner wall of the arc-shaped filter plate 52. Under the action of buoyancy, they are suspended in the hot wash water. The bottle flakes are released from the inner wall of the filter plate and fully mixed with the hot wash water, increasing the contact area. At the same time, the rise in water level accumulates potential energy for subsequent drainage and agitation.

[0035] The second motor drives the arc-shaped valve plate 41 to rotate in the opposite direction. The arc-shaped valve plate 41 disengages from the arc-shaped filter plate 52, and the circulating water in the cylinder is discharged through the arc-shaped filter plate 52. The bottle flakes re-attach to the inner wall of the arc-shaped filter plate 52 under the action of water flow. Strong water flow is generated during the drainage process, and the reverse rotation of the arc-shaped valve plate generates a secondary agitation on the bottle flakes. The dual action realizes the active agitation of the bottle flakes.

[0036] The opening and closing of the cylinder is controlled by the alternating forward and reverse rotation of the arc-shaped valve plate 41, which continuously agitates the bottle flakes during the injection and discharge of circulating hot washing water—avoiding dead corners in multiple stirring chambers and ensuring that the bottle flakes are heated and cleaned evenly.

[0037] Working principle and usage process of this invention: The crushed waste plastic bottle flakes are injected into the cylinder through the feed pipe 53, and hot washing water is injected at the same time. Two drive rings 54 block the openings at both ends of the cylinder to axially limit the bottle flakes. The arc-shaped filter plate 52 allows the hot washing water to enter and exit the cylinder but prevents the bottle flakes from passing through.

[0038] The first motor drives the circulation component 6 to rotate, and the circulation component 6 drives the two transmission rings 54 and the arc-shaped stirring plate 55 fixed between the transmission rings to rotate synchronously. The arc-shaped surface of the arc-shaped stirring plate 55 pushes the bottle pieces inside the cylinder to flip along the circumferential direction.

[0039] The cylindrical inner wall is fixed with partition rings 58 at equal intervals, which divide the inside of the cylinder into several stirring chambers. The arc-shaped stirring plate 55 passes through the partition rings 58 through the slot 57 at its outer end and rotates synchronously in each stirring chamber.

[0040] The hot washing water at the bottom of the treatment chamber 2 enters the filtration device 3 through the drain pipe 66 under the action of gravity. After filtering and removing the dirt generated during cleaning, it enters the cavity of the transmission spindle 61 through the docking part 64 and the rectangular through groove 63 in sequence, and then is sprayed into the inside of the cylinder through the spray hole 62.

[0041] The water jet from the nozzle 62 exerts an impact force on the bottle flakes inside the cylinder, pushing the flakes through the gap between the separator ring 58 and the arc-shaped stirring plate 55, and distributing them evenly in each stirring chamber.

[0042] The second motor drives the second transmission gear 47 to rotate, which in turn drives the ring frame 44 to rotate via the teeth 46. The ring frame 44 drives the first transmission gear 43 to rotate via the arc-shaped toothed plate 45, which in turn drives the core rod 42 and the arc-shaped valve plate 41 to rotate, so that the arc-shaped valve plate 41 gradually fits against the outside of the arc-shaped filter plate 52.

[0043] After the arc-shaped valve plate 41 is attached to the outside of the arc-shaped filter plate 52, the circulating hot wash water continuously enters the cylinder from the spray hole 62. The water level gradually rises, and the bottle flakes lose the thrust of the water flow and detach from the inner wall of the arc-shaped filter plate 52. Under the action of buoyancy, they are suspended in the hot wash water.

[0044] The second motor drives the arc-shaped valve plate 41 to rotate in the opposite direction. The arc-shaped valve plate 41 disengages from the arc-shaped filter plate 52, and the circulating water in the cylinder is discharged through the arc-shaped filter plate 52. The bottle flakes re-attach to the inner wall of the arc-shaped filter plate 52 under the action of the water flow.

[0045] The bottle flakes are continuously agitated by the alternating forward and reverse rotation of the arc-shaped valve plate 41 and the continuous rotation of the arc-shaped stirring plate 55, thus completing the hot washing process.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for hot washing of crushed waste plastic bottles, comprising a support (1), wherein a processing chamber (2) is installed on the top of the support (1), characterized in that, Also includes: A hot washing assembly (5) is disposed inside the processing chamber (2) and is used to hot wash the crushed waste plastic bottle pieces; The circulation component (6) is located inside the processing chamber (2) and is used to drive the hot washing component (5) to stir the bottle flakes and drive the hot washing water to circulate. The top of the support (1) is provided with a first motor, and the output end of the first motor is connected to the circulation component (6) in a transmission connection. A filtration device (3) is connected at one end to the bottom of the treatment chamber (2) and at the other end to the circulation component (6) for filtering the hot wash water inside the treatment chamber (2); The hot washing assembly (5) includes a cylindrical frame (51) fixed inside the processing chamber (2) by a connecting frame (56). The cylindrical frame (51) has arc-shaped through slots equidistantly opened on the outside of the cylindrical frame (51) along the circumferential direction. An arc-shaped filter plate (52) is installed in the arc-shaped through slots on the outside of the cylindrical frame (51). The cylindrical frame (51) and the arc-shaped filter plate (52) form a cylinder. The two ends of the cylinder are rotatably fitted with transmission rings (54). The transmission rings (54) are rotatably engaged with the inner wall of the cylindrical frame (51). The cylindrical frame (51) is provided with inlet and outlet pipes (53) on the outside. The inlet and outlet pipes (53) pass through the side wall of the processing chamber (2) and the side wall of the cylindrical frame (51) in sequence, and communicate with the inside of the cylinder. An arc-shaped stirring plate (55) is fixed between the two drive rings (54), and the drive rings (54) are connected to the circulation assembly (6).

2. The waste plastic bottle crushing and hot washing device according to claim 1, characterized in that: The inner wall of the cylinder is fixed with partition rings (58) at equal intervals, which divide the inside of the cylinder into several stirring chambers.

3. The waste plastic bottle crushing and hot washing device according to claim 2, characterized in that: The outer end of the arc-shaped stirring plate (55) is provided with a slot (57) that is adapted to the partition ring (58). The arc-shaped stirring plate (55) passes through the slot (57) and passes through the partition ring (58) to rotate and stir synchronously in each stirring chamber.

4. The waste plastic bottle crushing and hot washing device according to claim 1, characterized in that: The circulation assembly (6) includes a drive spindle (61) mounted on the top of the processing chamber (2) at the output end of a first motor. The bottom of the drive spindle (61) is rotatably supported on the bottom of the processing chamber (2) by a support frame (65).

5. The waste plastic bottle crushing and hot washing device according to claim 4, characterized in that: The lower end of the support frame (65) is provided with several support legs, and a gap is formed between the support legs for the passage of heated washing water. The bottom of the treatment chamber (2) is provided with a drain pipe (66).

6. The waste plastic bottle crushing and hot washing device according to claim 5, characterized in that: The transmission spindle (61) has an axially penetrating cavity inside. Spray holes (62) are distributed on the section of the transmission spindle (61) located inside the cylinder. The spray holes (62) are connected to the cavity inside the transmission spindle (61). The transmission spindle (61) is fixedly connected to the two transmission rings (54); The upper end of the transmission spindle (61) is provided with rectangular through slots (63) at equal intervals along the circumferential direction. A connecting piece (64) is rotatably sleeved on the upper end of the transmission spindle (61), and the connecting piece (64) covers the outside of the rectangular through slot (63).

7. The waste plastic bottle crushing and hot washing device according to claim 6, characterized in that: The inlet end of the filter device (3) is connected to the drain pipe (66), and the outlet end of the filter device (3) is connected to the docking part (64).

8. The waste plastic bottle crushing and hot washing device according to claim 1, characterized in that: A valve plate assembly (4) is provided on the cylindrical frame (51); The valve plate assembly (4) includes a core rod (42) disposed on the cylindrical frame (51), and an arc-shaped valve plate (41) is mounted on the outside of the core rod (42). The upper transmission ring (54) is mesh-like; The arc-shaped valve plate (41) corresponds to the arc-shaped filter plate (52). In the initial state, the arc-shaped valve plate (41) does not contact the outer wall of the arc-shaped filter plate (52), and the arc-shaped filter plate (52) is in a conductive state. When the arc-shaped valve plate (41) is attached to the outside of the arc-shaped filter plate (52), the cylinder is in a closed state.

9. The waste plastic bottle crushing and hot washing device according to claim 8, characterized in that: The top of the core rod (42) is equipped with a first transmission gear (43), and the upper end of the processing chamber (2) is provided with an annular frame (44). The inner wall of the annular frame (44) is provided with an arc-shaped toothed plate (45) that meshes with the first transmission gear (43). The arc-shaped toothed plate (45) corresponds to the first transmission gear (43).

10. The waste plastic bottle crushing and hot washing device according to claim 9, characterized in that: The ring frame (44) is provided with teeth (46) on the outside. The processing chamber (2) is equipped with a second transmission gear (47) that meshes with the teeth (46). The top of the processing chamber (2) is provided with a second motor that drives the second transmission gear (47). The second motor is a forward and reverse motor.

Images