Waste plastic modification recovery pretreatment device

Abstract

The invention relates to the technical field of plastic modification recovery, and discloses a waste plastic modification recovery pretreatment device which comprises a treatment bin, a crushing part arranged at the top of the treatment bin and used for crushing plastic, and a stirring part arranged in an inner cavity of the treatment bin and used for mixing plastic fragments. The drying component is arranged in an inner cavity of the treatment bin and used for drying the plastic fragments, and the discharging component is arranged at the bottom of the treatment bin. According to the waste plastic modification, recovery and pretreatment device, through mutual cooperation of the crushing part and the drying part in the treatment bin, the steps of crushing, cleaning, drying and modification treatment can be integrated together, then the continuous and automatic treatment process can be achieved, the transfer and waiting time of materials between different devices is shortened, and the production efficiency is improved. The treatment efficiency can be remarkably improved, and meanwhile, the efficient treatment mode is beneficial for increasing the recycling speed of the waste plastic, so that the waste plastic is converted into valuable resources more quickly.

Description

Technical Field

[0001] The invention relates to the technical field of plastic modification and recycling, and in particular to a waste plastic modification and recycling pretreatment device. Background Art

[0002] As a widely used material, the disposal of plastic waste has always been a serious environmental problem. Waste plastic is difficult to degrade in the natural environment. Long-term accumulation will destroy soil structure, pollute water sources, and cause harm to wild animals and plants. Therefore, the recycling of waste plastics not only helps to reduce environmental pollution, but also realizes the reuse of resources and promotes sustainable development. The modification and recycling pretreatment of waste plastics is a complex but crucial process. It involves multiple links and technical means to ensure that waste plastics can be effectively recycled and modified into high-quality recycled materials, aiming to reduce plastic waste, environmental pollution, and promote sustainable development.

[0003] At present, for the pretreatment of waste plastic modification and recycling, separation is generally carried out first. For devices composed of metals, etc., it is necessary to separate the plastic from other materials first. Then, the recycling methods are different according to different types of plastics, so it is necessary to accurately classify the waste plastics, and then crush the waste plastics into smaller fragments or particles for subsequent processing. Then, the broken fragments are cleaned. After cleaning, they need to be fully rinsed and dried to avoid moisture and cleaning agent residues. Then, fillers, plasticizers, stabilizers and other substances are added to change the physical properties of the plastics, such as hardness, toughness, heat resistance, etc., so that the purity and processability of the pretreated waste plastics are improved.

[0004] However, the current waste plastic modification and recycling pretreatment equipment often uses multiple devices to operate separately when performing steps such as crushing, cleaning, and drying. The separate operation of multiple devices means that more time and manpower are required to transfer and coordinate materials between different steps, which not only increases the processing time, but may also lead to a decrease in overall processing efficiency. At the same time, the separate operation of multiple devices requires more space for installation and layout, which increases space occupancy. Summary of the invention

[0005] In view of the fact that the above-mentioned existing devices often use multiple devices to operate separately when performing steps such as crushing, cleaning, and drying, and the separate operation of multiple devices means that more time and manpower are required to transfer and coordinate materials between different steps, which not only increases the processing time, but may also lead to a decrease in overall processing efficiency. At the same time, the separate operation of multiple devices requires more space for installation and arrangement, which increases the problem of space occupancy, and the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a waste plastic modification and recycling pretreatment device, the purpose of which is to integrate the steps of crushing, cleaning and drying, so as to realize a continuous and automated processing flow, reduce the transportation and waiting time of materials between different equipment, and significantly improve the processing efficiency. At the same time, the efficient processing method helps to speed up the recycling of waste plastics and convert them into valuable resources more quickly. The integrated device reduces the number of equipment, thereby reducing the total cost of equipment purchase, installation and maintenance, and also significantly reduces the floor space occupied, which helps to optimize the site layout and improve space utilization.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a waste plastic modification and recycling pretreatment device, comprising a treatment chamber and a water inlet pipe arranged at the top of one side of the treatment chamber surface, a connecting pipe arranged at the top of the other side of the treatment chamber surface, a feed hopper arranged at the top of the connecting pipe, and also comprising a crushing component arranged at the top of the treatment chamber for crushing plastic, a stirring component arranged in the inner cavity of the treatment chamber for mixing plastic fragments, a drying component arranged in the inner cavity of the treatment chamber for drying plastic fragments, and a discharge component arranged at the bottom of the treatment chamber;

[0008] The crushing component includes a crushing bin arranged on the top of the processing bin, a feeding channel arranged on both sides of the bottom of the crushing bin, and the feeding channel and the inner cavity of the crushing bin are connected to each other, a feeding port arranged on the top of the crushing bin, and the feeding port and the inner cavity of the crushing bin are connected to each other, two groups of first rotating rods arranged on both sides of the inner cavity of the crushing bin, and both ends of the first rotating rods extend to the outside of the crushing bin, and a crushing roller arranged on the surface of the first rotating rod, and the crushing roller is located in the inner cavity of the crushing bin.

[0009] As a preferred solution of the waste plastic modification and recycling pretreatment device described in the present invention, the crushing component also includes a first motor arranged on one side of the crushing bin, and the output end of the first motor and a group of first rotating rods located at one end outside the crushing bin are connected to each other, transmission gears are arranged at two groups of the first rotating rods located at one end outside the crushing bin, and the two groups of transmission gears are meshed with each other, and a diverter plate is arranged at the bottom of the inner cavity of the crushing bin.

[0010] As a preferred solution of the waste plastic modification and recycling pretreatment device described in the present invention, wherein: the stirring component includes an annular groove arranged at the top of the inner cavity of the processing chamber, multiple groups of sliding blocks arranged on the inner side of the annular groove, a first internal ring gear arranged at the bottom of the sliding block, a second motor arranged on one side of the top of the processing chamber, a rotating shaft arranged at the output end of the second motor, and the output end of the rotating shaft extends to the inner cavity of the processing chamber, a first gear arranged on the surface of the rotating shaft and located in the inner cavity of the processing chamber, and the first gear and the first internal ring gear are meshed with each other.

[0011] As a preferred solution of the waste plastic modification and recycling pretreatment device described in the present invention, the stirring component also includes four groups of second rotating rods arranged at the bottom of the first inner ring gear, multiple groups of stirring members arranged on the surface of the second rotating rod, a second inner ring gear arranged at the top edge of the inner cavity of the processing chamber, and a second gear arranged on the surface of the second rotating rod and located above the stirring member, and the second gear and the second inner ring gear are meshed with each other.

[0012] As a preferred embodiment of the waste plastic modification and recycling pretreatment device described in the present invention, the drying component includes a drying cylinder arranged at the top of the inner cavity of the processing chamber, and the top of the drying cylinder extends to the outside of the processing chamber, a filter screen arranged at the top of the inner cavity of the drying cylinder, three groups of electric heating wires arranged at the top of the inner cavity of the drying cylinder and located below the filter screen, a fan arranged at the top of the inner cavity of the drying cylinder and located below the electric heating wires, and a plurality of exhaust holes arranged on the surface of the drying cylinder. The drying component includes a drying cylinder arranged at the top of the inner cavity of the processing chamber, and the top of the drying cylinder extends to the outside of the processing chamber, a filter screen arranged at the top of the inner cavity of the drying cylinder, three groups of electric heating wires arranged at the top of the inner cavity of the drying cylinder and located below the filter screen, a fan arranged at the top of the inner cavity of the drying cylinder and located below the electric heating wires, and a plurality of exhaust holes arranged on the surface of the drying cylinder.

[0013] As a preferred embodiment of the waste plastic modification and recycling pretreatment device of the present invention, the drying component further comprises an outer ring gear arranged on the surface of the drying cylinder, and the outer ring gear is located in the inner cavity of the processing chamber, and the outer ring gear and the first gear are meshed with each other.

[0014] As a preferred solution of the waste plastic modification and recycling pretreatment device of the present invention, the two sides of the bottom of the drying cylinder are fixedly connected with scraper rods, and connecting plates are arranged on the sides where the two groups of scraper rods are close to each other.

[0015] As a preferred embodiment of the waste plastic modification and recycling pretreatment device described in the present invention, the discharge component includes a discharge pipe arranged at the bottom of the processing bin, and the discharge pipe and the inner cavity of the processing bin are communicated with each other, a blocking cylinder arranged in the inner cavity of the discharge pipe, a plurality of groups of drainage ports arranged at the top of the surface of the blocking cylinder, and the drainage ports and the inner cavity of the blocking cylinder are communicated with each other, a circular blocking plate arranged in the inner cavity of the blocking cylinder and located below the drainage ports, a drainage pipe arranged at the bottom of the circular blocking plate, the bottom end of the drainage pipe extends to the outside of the discharge pipe, and the top end of the drainage pipe passes through the circular blocking plate, and three groups of discharge ports are arranged on the surface of the blocking cylinder and located below the circular blocking plate.

[0016] As a preferred solution of the waste plastic modification and recycling pretreatment device described in the present invention, the discharge component also includes three groups of sliding grooves arranged on the surface of the discharge pipe, two groups of limiting grooves arranged on the inner side walls of the sliding grooves, three groups of connecting short rods arranged at the bottom of the surface of the blocking cylinder, and the connecting short rods extend to the outside of the discharge pipe through the sliding grooves, and an operating ring is arranged at the bottom of the surface of the discharge pipe, and one end of the connecting short rod located outside the discharge pipe is connected to the inner side wall of the operating ring.

[0017] Beneficial effects of the present invention:

[0018] 1. The present invention can integrate the crushing, cleaning, drying and modification processing steps together through the mutual cooperation between the crushing component and the drying component in the processing bin, thereby realizing a continuous and automated processing flow, reducing the transportation and waiting time of materials between different equipment, and significantly improving the processing efficiency. At the same time, the efficient processing method helps to speed up the recycling of waste plastics and convert them into valuable resources more quickly. The integrated device reduces the number of equipment, thereby reducing the total cost of equipment purchase, installation and maintenance, and also significantly reduces the floor space, which helps to optimize the site layout and improve space utilization.

[0019] 2. The present invention, by arranging a stirring component in the processing chamber, can make the stirring member on the second rotating rod drive the stirring rotating rod to rotate while revolving around the drying cylinder, so that the shear force and impact force generated by the stirring member in the processing chamber can make the plastic fragments in the processing chamber better mixed with the water source, thereby improving the cleaning effect, and at the same time, can also make the addition of bleaching agent and filler to obtain sufficient mixing treatment in the processing chamber, and finally can cooperate with the drying component to stir the plastic fragments more evenly, thereby further improving the efficiency of drying the plastic fragments.

[0020] 3. The present invention starts the second motor to drive the second rotating rod and the stirring member to revolve around the drying cylinder and rotate at the same time. By utilizing the cooperation between the first gear and the outer ring gear, the drying cylinder can also be driven to rotate. Then, the exhaust holes on the drying cylinder can rotate in the processing bin to exhaust hot air evenly and comprehensively. The mixed structure in which the second rotating rod and the stirring member revolve around the drying cylinder and rotate at the same time cooperates with each other, thereby improving the drying efficiency of the plastic fragments in the processing bin.

[0021] 4. The present invention can choose to drain or discharge plastic fragments according to actual needs through the setting of the discharge component, and has a simple structure and is easy to operate. At the same time, the rotation of the drying cylinder can make the scraper rod rotate, so that when the blocking cylinder is raised to drain, the surface of the blocking cylinder is rotated and scraped, thereby effectively preventing the drain port from being blocked by plastic fragments, thereby ensuring smooth drainage of the blocking cylinder and improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0023] Figure 1 It is a schematic diagram of the overall structure of the waste plastic modification and recycling pretreatment device of the present invention.

[0024] Figure 2 This is a schematic diagram of the overall structure of the waste plastic modification and recycling pretreatment device of the present invention from another perspective.

[0025] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the processing chamber of the waste plastic modification and recycling pretreatment device of the present invention.

[0026] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the crushing bin of the waste plastic modification and recycling pretreatment device of the present invention.

[0027] Figure 5 It is a schematic diagram of the partial cross-sectional three-dimensional structure of the processing chamber of the waste plastic modification and recycling pretreatment device of the present invention.

[0028] Figure 6 It is a schematic diagram of the top view and the sectional three-dimensional structure of the processing chamber of the waste plastic modification and recycling pretreatment device of the present invention.

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the processing chamber of the waste plastic modification and recycling pretreatment device of the present invention, viewed from above.

[0030] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the discharge pipe of the waste plastic modification and recycling pretreatment device of the present invention.

[0031] Fig. 9 It is a three-dimensional unfolded structural schematic diagram of the discharge component of the waste plastic modification and recycling pretreatment device of the present invention.

[0032] Description of reference numerals:

[0033] 1. Processing chamber; 11. Water inlet pipe; 12. Connecting pipe; 13. Feed hopper;

[0034] 2. Crushing components; 21. Crushing chamber; 22. First rotating rod; 23. Crushing roller; 24. Feeding port; 25. Feeding channel; 26. Diverter plate; 27. First motor; 28. Transmission gear;

[0035] 3. stirring member; 31. second motor; 32. rotating shaft; 33. first gear; 34. annular slide; 35. sliding block; 36. first inner ring gear; 37. second inner ring gear; 38. second rotating rod; 39. stirring member; 30. second gear;

[0036] 4. Drying components; 41. Drying cylinder; 42. Filter; 43. Exhaust hole; 44. Outer ring gear; 45. Electric heating wire; 46. Fan; 47. Scraper rod; 48. Connecting plate;

[0037] 5. Discharge component; 51. Discharge pipe; 52. Sliding slot; 53. Limiting slot; 54. Blocking cylinder; 55. Drainage port; 56. Dropping port; 57. Circular blocking plate; 58. Drainage pipe; 59. Connecting short rod; 50. Operating collar. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Example 1

[0041] Reference Figure 1-9 , is an embodiment of the present invention, providing a waste plastic modification and recycling pretreatment device, the waste plastic modification and recycling pretreatment device comprises a treatment bin 1 and a water inlet pipe 11 connected to the top of one side of the treatment bin 1 surface, which can be connected to an external water pipe, a connecting pipe 12 connected to the top of the other side of the treatment bin 1 surface, a feed hopper 13 connected to the top of the connecting pipe 12, which is convenient for pouring bleaching agent and filler, etc., and also comprises a crushing component 2 arranged at the top of the treatment bin 1 for crushing plastic, a stirring component 3 arranged in the inner cavity of the treatment bin 1 for mixing plastic fragments, a drying component 4 arranged in the inner cavity of the treatment bin 1 for drying plastic fragments, and a discharge component 5 arranged at the bottom of the treatment bin 1;

[0042] The crushing component 2 includes a crushing bin 21 installed on the top of the processing bin 1, a feeding channel 25 connected to both sides of the bottom of the crushing bin 21, and the feeding channel 25 and the inner cavity of the crushing bin 21 are connected to each other, a feeding port 24 installed on the top of the crushing bin 21, and the feeding port 24 and the inner cavity of the crushing bin 21 are connected to each other, two groups of first rotating rods 22 rotatably connected to both sides of the inner cavity of the crushing bin 21, and both ends of the first rotating rods 22 extend to the outside of the crushing bin 21, and a crushing roller 23 fixedly sleeved on the surface of the first rotating rod 22, and the crushing roller 23 is located in the inner cavity of the crushing bin 21.

[0043] The crushing component 2 also includes a first motor 27 fixedly installed on one side of the crushing bin 21, and the output end of the first motor 27 and one end of a group of first rotating rods 22 located outside the crushing bin 21 are connected to each other, a transmission gear 28 fixedly mounted on one end of the two groups of first rotating rods 22 located outside the crushing bin 21, and the two groups of transmission gears 28 are meshed with each other, and a diverter plate 26 is arranged at the bottom of the inner cavity of the crushing bin 21. The triangular arrangement of the diverter plate 26 facilitates guiding the crushed plastic fragments to the discharge channels 25 on both sides and drops them into the processing bin 1.

[0044] The stirring component 3 includes an annular groove 34 opened at the top of the inner cavity of the processing chamber 1, multiple groups of sliding blocks 35 slidably connected to the inner side of the annular groove 34, a first inner ring gear 36 fixedly installed at the bottom of the sliding block 35, a second motor 31 fixedly installed on one side of the top of the processing chamber 1, a rotating shaft 32 connected to the output end of the second motor 31, and the output end of the rotating shaft 32 extends to the inner cavity of the processing chamber 1, a first gear 33 fixedly sleeved on the surface of the rotating shaft 32 and located in the inner cavity of the processing chamber 1, and the first gear 33 and the first inner ring gear 36 are meshed with each other, the stirring component 3 also includes four groups of second rotating rods 38 rotatably connected to the bottom of the first inner ring gear 36, multiple groups of stirring members 39 installed on the surface of the second rotating rods 38, so as to facilitate the mixing operation of the plastic fragments in the inner cavity of the processing chamber 1, a second inner ring gear 37 fixedly installed at the top edge of the inner cavity of the processing chamber 1, and a second gear 30 fixedly sleeved on the surface of the second rotating rod 38 and located above the stirring member 39, and the second gear 30 and the second inner ring gear 37 are meshed with each other.

[0045] The drying component 4 includes a drying cylinder 41 rotatably connected to the top of the inner cavity of the processing chamber 1, and the top of the drying cylinder 41 extends to the outside of the processing chamber 1, a filter screen 42 installed on the top of the inner cavity of the drying cylinder 41, which plays a role in filtering the air entering the processing chamber 1, three groups of electric heating wires 45 fixedly installed on the top of the inner cavity of the drying cylinder 41 and located below the filter screen 42, a fan 46 installed on the top of the inner cavity of the drying cylinder 41 and located below the electric heating wires 45, and a plurality of exhaust holes 43 opened on the surface of the drying cylinder 41, so as to facilitate the discharge of hot air from the inner cavity of the drying cylinder 41, the drying component 4 also includes an outer ring gear 44 fixedly sleeved on the surface of the drying cylinder 41, and the outer ring gear 44 is located in the inner cavity of the processing chamber 1, the outer ring gear 44 and the first gear 33 are meshed with each other, so as to facilitate the synchronous driving of the drying cylinder 41 to rotate, scraper rods 47 are fixedly connected to both sides of the bottom of the drying cylinder 41, which play a role in cleaning the drain outlet 55 on the blocking cylinder 54, and a connecting plate 48 installed on the side where the two groups of scraper rods 47 are close to each other.

[0046] The discharge component 5 includes a discharge pipe 51 connected to the bottom of the processing bin 1, and the discharge pipe 51 and the inner cavity of the processing bin 1 are interconnected, a blocking cylinder 54 slidably connected to the inner cavity of the discharge pipe 51, a plurality of drain ports 55 opened on the top of the surface of the blocking cylinder 54, and the drain ports 55 and the inner cavity of the blocking cylinder 54 are interconnected, the drain ports 55 play a drainage role, a circular blocking plate 57 fixedly installed in the inner cavity of the blocking cylinder 54 and located below the drain ports 55, a drainage pipe 58 connected to the bottom of the circular blocking plate 57, the bottom end of the drainage pipe 58 extends to the outside of the discharge pipe 51, and the top end of the drainage pipe 58 passes through the circular blocking plate 57, and three groups of drop ports 56 opened on the surface of the blocking cylinder 54 and located below the circular blocking plate 57 play a role in discharging plastic fragments.

[0047] The discharge component 5 also includes three groups of sliding grooves 52 opened on the surface of the discharge pipe 51, two groups of limiting grooves 53 opened on the inner wall of the sliding grooves 52, three groups of connecting short rods 59 fixedly installed on the bottom of the surface of the blocking tube 54, and the connecting short rods 59 extend to the outside of the discharge pipe 51 through the sliding grooves 52, and an operating ring 50 slidably sleeved on the bottom of the surface of the discharge pipe 51, and one end of the connecting short rod 59 located outside the discharge pipe 51 is connected to the inner wall of the operating ring 50, so as to facilitate the change and fixation of the position of the blocking tube 54 in the discharge pipe 51.

[0048] During use, the first motor 27 is first started to drive a group of first rotating rods 22 to rotate. Through the mutual engagement of the transmission gears 28 on the two groups of first rotating rods 22, the crushing rollers 23 on the two groups of first rotating rods 22 can be synchronously driven to rotate, and then the sorted waste plastics are poured into the inner cavity of the crushing bin 21 above the two groups of rotating crushing rollers 23 through the feed inlet 24, and then the waste plastics are crushed by the rotating crushing rollers 23, and the plastic fragments crushed by the two groups of rotating crushing rollers 23 are transferred to the two groups of unloading channels 25 through the diverter plate 26, and then fall into the processing bin 1 through the unloading channels 25 for storage;

[0049] At the same time, the water inlet pipe 11 and the external water pipe are connected to each other, and then water can be injected into the inner cavity of the processing chamber 1, and then the second motor 31 is started to drive the first gear 33 on the rotating shaft 32 to rotate, and the first gear 33 and the first inner ring gear 36 are meshed with each other to drive the first inner ring gear 36 to rotate, and at the same time, the sliding block 35 on the first inner ring gear 36 moves in a circular shape in the inner cavity of the annular slide groove 34, and then the four groups of second rotating rods 38 at the bottom of the first inner ring gear 36 rotate around the drying cylinder 41, so that the multiple groups of stirring rods 38 on the second rotating rods 38 The stirring member 39 revolves around the drying cylinder 41, so that the plastic fragments and the water source are mixed and cleaned. At the same time, when the second rotating rod 38 revolves around the drying cylinder 41, the second gear 30 and the second inner ring gear 37 on the second rotating rod 38 are meshed with each other, so that the second rotating rod 38 revolves around the drying cylinder 41 and drives the second rotating rod 38 to rotate. Therefore, the second rotating rod 38 and the stirring member 39 can also rotate while revolving around the drying cylinder 41, thereby improving the mixing of the plastic fragments and the water source, and further improving the cleaning effect.

[0050] When cleaning is completed, the operating collar 50 can be held and slid upward, so that the connecting short rod 59 on the operating collar 50 moves upward in the sliding groove 52, thereby causing the blocking cylinder 54 to rise in the discharge pipe 51. At the same time, when the connecting short rod 59 moves to the first limiting groove 53 on the inner wall of the sliding groove 52, the operating collar 50 can be rotated to make the connecting short rod 59 move to the inside of the first group of limiting grooves 53, thereby fixing the position of the blocking cylinder 54 in the discharge pipe 51, and at the same time, the top of the blocking cylinder 54 moves out of the inner cavity of the discharge pipe 51, and the drain outlet 55 is The first gear 33 is exposed to the inner cavity of the processing chamber 1. At this time, the water source in the inner cavity of the processing chamber 1 can enter the blocking cylinder 54 through the drainage port 55, and then be discharged through the drainage pipe 58. At the same time, when the first gear 33 rotates, the first gear 33 and the outer ring gear 44 on the drying cylinder 41 are meshed with each other, which can drive the outer ring gear 44 and the drying cylinder 41 to rotate synchronously, and then drive the scraper 47 to rotate on the surface of the blocking cylinder 54 and clean the drainage port 55, so as to avoid the plastic debris from clogging the drainage port 55, thereby ensuring the drainage effect of the drainage port 55;

[0051] After draining the water in the processing chamber 1, the operating sleeve 50 is rotated in the opposite direction so that the connecting short rod 59 moves from the first group of limiting notches 53 to the sliding notches 52 again, and then the operating sleeve 50 is slid downward to reset the operating sleeve 50, thereby driving the blocking cylinder 54 to retract into the inner cavity of the discharge pipe 51, so that the blocking cylinder 54 blocks the discharge pipe 51 again, and then clean water can be injected into the processing chamber 1 again through the water inlet pipe 11, and then bleaching agent is injected through the feed hopper 13, and at the same time, the second motor 31 is started again, so that the stirring member 39 on the second rotating rod 38 revolves around the drying cylinder 41 and rotates at the same time, so that the plastic fragments and water source in the processing chamber 1 can be fully mixed with the bleaching agent. After the bleaching treatment of the plastic fragments in the inner cavity of the processing chamber 1 is completed, the operating sleeve 50 can be pulled again and the operating sleeve 50 can be moved into the first group of limiting notches 53, so that the blocking cylinder 54 is moved out of the discharge pipe 51, and then the water source in the inner cavity of the processing chamber 1 can be climbed out from the drainage pipe 58;

[0052] After the water source in the processing chamber 1 is drained, the electric heating wire 45 and the fan 46 are started to heat the air in the drying cylinder 41 by the electric heating wire 45, and then the heated air is discharged into the inner cavity of the processing chamber 1 through the exhaust hole 43 on the drying cylinder 41 by the fan 46, so as to dry the agitated plastic fragments in the processing chamber 1. At the same time, when the second motor 31 is started, the drying cylinder 41 is rotated, thereby performing a comprehensive drying operation. When the second motor 31 is started, the stirring member 39 on the second rotating rod 38 is also caused to revolve around the drying cylinder 41 while rotating to stir the plastic fragments, which can further improve the efficiency of drying the plastic fragments.

[0053] When the plastic fragments in the inner cavity of the processing bin 1 are dried, filler is poured into the processing bin 1 through the feed hopper 13, and then the stirring member 39 on the second rotating rod 38 revolves around the drying cylinder 41 while rotating to stir the plastic fragments and the filler for sufficient mixing to change the physical properties of the plastic fragments, so that the purity and processability of the pre-treated plastic fragments are improved, and then the operating ring 50 can be pulled upward to make the connecting short rod 59 rise in the inner cavity of the sliding groove 52, and when it moves to the second group of limiting grooves 53, the operating ring 50 is rotated to fix the blocking cylinder 54 on the inner side of the discharge pipe 51, and then the drop opening 56 on the blocking cylinder 54 moves out of the discharge pipe 51 and is in the inner cavity of the processing bin 1, and the plastic fragments in the inner cavity of the processing bin 1 can be discharged from the inner cavity of the processing bin 1 from the discharge pipe 51 through the drop opening 56.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A waste plastic modification and recycling pretreatment device, comprising a treatment chamber (1), a water inlet pipe (11) arranged at the top of one side of the surface of the treatment chamber (1), a connecting pipe (12) arranged at the top of the other side of the surface of the treatment chamber (1), and a feed hopper (13) arranged at the top of the connecting pipe (12), characterized in that: It also comprises a crushing component (2) arranged at the top of the processing bin (1) for crushing plastic, a stirring component (3) arranged in the inner cavity of the processing bin (1) for mixing plastic fragments, a drying component (4) arranged in the inner cavity of the processing bin (1) for drying plastic fragments, and a discharge component (5) arranged at the bottom of the processing bin (1); The crushing component (2) comprises a crushing bin (21) arranged at the top of the processing bin (1), feeding channels (25) arranged at both sides of the bottom of the crushing bin (21), and the feeding channels (25) and the inner cavity of the crushing bin (21) are connected to each other, a feeding port (24) arranged at the top of the crushing bin (21), and the feeding port (24) and the inner cavity of the crushing bin (21) are connected to each other, two groups of first rotating rods (22) arranged at both sides of the inner cavity of the crushing bin (21), and the two ends of the first rotating rods (22) extend to the outside of the crushing bin (21), and a crushing roller (23) arranged on the surface of the first rotating rod (22), and the crushing roller (23) is located in the inner cavity of the crushing bin (21).

2. The waste plastic modification and recycling pretreatment device according to claim 1 is characterized in that: The crushing component (2) further comprises a first motor (27) arranged at one side of the crushing bin (21), wherein the output end of the first motor (27) and one end of a group of the first rotating rods (22) located outside the crushing bin (21) are connected to each other, transmission gears (28) are arranged at one end of two groups of the first rotating rods (22) located outside the crushing bin (21), and the two groups of transmission gears (28) are meshed with each other, and a diverter plate (26) is arranged at the bottom of the inner cavity of the crushing bin (21).

3. The waste plastic modification and recycling pretreatment device according to claim 2 is characterized in that: The stirring component (3) comprises an annular groove (34) arranged at the top of the inner cavity of the processing chamber (1), a plurality of sliding blocks (35) arranged inside the annular groove (34), a first inner ring gear (36) arranged at the bottom of the sliding block (35), a second motor (31) arranged at one side of the top of the processing chamber (1), a rotating shaft (32) arranged at the output end of the second motor (31), and the output end of the rotating shaft (32) extends to the inner cavity of the processing chamber (1), and a first gear (33) arranged on the surface of the rotating shaft (32) and located in the inner cavity of the processing chamber (1), and the first gear (33) and the first inner ring gear (36) are meshed with each other.

4. The waste plastic modification and recycling pretreatment device according to claim 3 is characterized in that: The stirring component (3) also includes four groups of second rotating rods (38) arranged at the bottom of the first internal ring gear (36), multiple groups of stirring members (39) arranged on the surface of the second rotating rod (38), a second internal ring gear (37) arranged at the top edge of the inner cavity of the processing chamber (1), and a second gear (30) arranged on the surface of the second rotating rod (38) and located above the stirring member (39), and the second gear (30) and the second internal ring gear (37) are meshed with each other.

5. The waste plastic modification and recycling pretreatment device according to claim 4 is characterized in that: The drying component (4) comprises a drying cylinder (41) arranged at the top of the inner cavity of the processing chamber (1), and the top of the drying cylinder (41) extends to the outside of the processing chamber (1), a filter screen (42) arranged at the top of the inner cavity of the drying cylinder (41), three groups of electric heating wires (45) arranged at the top of the inner cavity of the drying cylinder (41) and located below the filter screen (42), a fan (46) arranged at the top of the inner cavity of the drying cylinder (41) and located below the electric heating wires (45), and a plurality of exhaust holes (43) arranged on the surface of the drying cylinder (41).

6. The waste plastic modification and recycling pretreatment device according to claim 5 is characterized in that: The drying component (4) further comprises an outer ring gear (44) arranged on the surface of the drying cylinder (41), and the outer ring gear (44) is located in the inner cavity of the processing chamber (1), and the outer ring gear (44) and the first gear (33) are meshed with each other.

7. The waste plastic modification and recycling pretreatment device according to claim 6 is characterized by: Scraping rods (47) are fixedly connected to both sides of the bottom of the drying cylinder (41), and a connecting plate (48) is arranged on one side where two groups of the scraping rods (47) are close to each other.

8. The waste plastic modification and recycling pretreatment device according to claim 7 is characterized in that: The discharge component (5) comprises a discharge pipe (51) arranged at the bottom of the processing chamber (1), and the discharge pipe (51) and the inner cavity of the processing chamber (1) are interconnected; a blocking cylinder (54) arranged in the inner cavity of the discharge pipe (51); a plurality of drainage ports (55) arranged at the top of the surface of the blocking cylinder (54), and the drainage ports (55) and the inner cavity of the blocking cylinder (54) are interconnected; a circular blocking plate (57) arranged in the inner cavity of the blocking cylinder (54) and located below the drainage ports (55); a drainage pipe (58) arranged at the bottom of the circular blocking plate (57), the bottom end of the drainage pipe (58) extending to the outside of the discharge pipe (51), and the top end of the drainage pipe (58) penetrating the circular blocking plate (57); and three groups of discharge ports (56) arranged on the surface of the blocking cylinder (54) and located below the circular blocking plate (57).

9. The waste plastic modification and recycling pretreatment device according to claim 8 is characterized in that: The discharge component (5) further comprises three groups of sliding notches (52) arranged on the surface of the discharge pipe (51), two groups of limiting notches (53) arranged on the inner side walls of the sliding notches (52), three groups of connecting short rods (59) arranged on the bottom of the surface of the blocking cylinder (54), and the connecting short rods (59) extend to the outside of the discharge pipe (51) through the sliding notches (52), and an operating collar (50) arranged on the bottom of the surface of the discharge pipe (51), and one end of the connecting short rod (59) located outside the discharge pipe (51) is connected to the inner side wall of the operating collar (50).

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