Regeneration processing equipment for waste plastics

Abstract

The invention discloses regeneration processing equipment for waste plastics, and particularly relates to the technical field of plastic recycling, and the regeneration processing equipment for the waste plastics comprises a main frame, and a crushing system and a cleaning system which are arranged in the main frame; a feeding hole is formed in the top of the main frame; the crushing system comprises a crushing assembly, a screening assembly and a recycling, crushing and conveying assembly, the cleaning system comprises a multi-stage countercurrent cleaning device, and the multi-stage countercurrent cleaning device is arranged below the screening assembly; the multi-stage countercurrent cleaning device comprises a plurality of cleaning tanks which are arranged in the main frame and are designed in parallel, a transfer impeller and a circulating water treatment unit, the feeding port comprises a material guide plate of the crushing assembly, and a discharging guide plate is installed in the main frame; and through the smashing assembly, the screening assembly and the recycling, smashing and conveying assembly, screening and re-smashing of plastic can be achieved, and the cleaning effect is better under the action of the multi-stage countercurrent cleaning device.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic recycling, and specifically to a regeneration processing device for waste plastics. Background Art

[0002] Waste plastics is a common term, not referring to useless plastic products. For the vast majority of plastic products, the properties of the plastic material itself do not change much after use. Therefore, it can be completely recycled and reprocessed into plastic products by appropriate methods for reuse. At the same time, with the reuse of waste plastics, the accumulation of garbage can be effectively reduced. Among them, the most common way to utilize plastics is the processing and utilization of plastic particles. The Chinese patent application with the publication number CN117817900A discloses a regenerated plastic particle processing device based on waste plastics. Although when crushing waste plastics, it first pours the collected waste plastics into the interior of the processing box body and simultaneously starts the operation of the servo motor to drive the drive shaft connected to its output end to rotate. At this time, the rotation of the drive shaft drives the first belt, rotating shaft, third transmission gear, fourth transmission gear and crushing roller connected to its side for transmission, and then completes the preliminary crushing operation of waste plastics through the rotation of the two groups of crushing rollers. At the same time, when the drive shaft rotates, it drives the first transmission gear, second transmission gear and two other groups of crushing rollers connected to its side to rotate, and performs a secondary crushing operation on the preliminarily crushed plastics, meeting the full crushing of waste plastics of different sizes and ensuring the crushing effect and efficiency of plastics. However, although its direct double crushing can crush large plastics relatively thoroughly, since small plastics will also fall along with large plastics and will be sandwiched between large plastics, it will crush small plastics again, resulting in uneven crushing. Moreover, it also needs to additionally install a cleaning device to clean the plastics, which is not conducive to improving production efficiency and reducing production costs. Therefore, we propose a circuit board detection device and method to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a circuit board detection device and method to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A regeneration processing device for waste plastics, comprising a main frame, and a crushing system and a cleaning system sequentially arranged inside the main frame from top to bottom;

[0005] The top of the main frame is provided with a feed inlet designed to be open upward;

[0006] The crushing system includes a crushing component, a screening component, and a recycling and crushing conveying component. The lowest end of the feed inlet is above the crushing component.

[0007] The crushing component and the recycling and crushing conveying component are respectively at both ends of the screening component, and the crushing component is above the screening component. The plastic crushed by the crushing component falls onto the screening component for screening. The incompletely crushed plastic is conveyed back to the feed inlet through the recycling and crushing conveying component.

[0008] The cleaning system includes a multi-stage countercurrent cleaning device. The multi-stage countercurrent cleaning device is arranged below the screening component, and the direction of plastic conveyance is opposite to the water flow direction.

[0009] The multi-stage countercurrent cleaning device includes a plurality of cleaning tanks connected in parallel inside the main frame, transfer impellers installed in the cleaning tanks, and a circulating water treatment unit communicated with the cleaning tanks. The plurality of cleaning tanks are communicated with each other.

[0010] The feed inlet includes a guide plate that gradually guides downward to the crushing component. The recycling and crushing conveying component is connected to the position of the guide plate relative to the crushing component, and a blanking guide plate that gradually guides downward to the end of the cleaning tank is installed inside the main frame.

[0011] Preferably, the transfer impeller includes a shaft rod and a plurality of arc-shaped plates.

[0012] One end of the shaft rod is rotatably connected to the main frame, and the other end of the shaft rod is rotatably connected to a second mounting plate, and the second mounting plate is installed on the main frame by bolts.

[0013] The shaft rod is rotatably connected to the main frame, and the arc-shaped plates are fixedly installed on the outer side of the shaft rod. When the shaft rod rotates, the protruding surfaces of the arc-shaped plates pick up the plastic from bottom to top.

[0014] A material passing through groove is formed between the cleaning tanks. The bottom of the material passing through groove is lower than the center line of the shaft rod, and when the outer end of the arc-shaped plate is flush with the bottom of the material passing through groove, the arc-shaped plate is in a downward inclined state.

[0015] An outlet bin is installed on the main frame, and the outlet bin is communicated with the cleaning tank at the water inlet end.

[0016] Preferably, the transfer impeller further includes an aeration head, and the aeration head is fixedly installed on both sides of the arc-shaped plate.

[0017] The inside of the shaft rod and the arc-shaped plates is hollow and communicated with the aeration head. One end of the shaft rod is open and can be connected to an external blower.

[0018] Preferably, the cleaning tanks installed include a first cleaning tank, a second cleaning tank, and a third cleaning tank arranged horizontally in sequence;

[0019] Water passing openings are provided between the first cleaning tank, the second cleaning tank, and the third cleaning tank, and a filter screen is installed in the water passing openings;

[0020] Aggregate frames are provided at the bottoms of the first cleaning tank, the second cleaning tank, and the third cleaning tank. The aggregate frames are in a conical structure that gradually becomes smaller from top to bottom. A sewage discharge pipe for sewage discharge is connected to the bottom of the aggregate frame, and a control valve is installed on the sewage discharge pipe.

[0021] Preferably, the circulating water treatment unit includes a water pump and a water tank connected to the water inlet of the water pump;

[0022] A support base is installed at the bottom of the main frame, and the water pump and the water tank are both installed in the support base;

[0023] The interior of the water tank is vertically divided into two parts, a purification chamber and a clean water storage chamber. A filter layer is installed in the middle of the purification chamber. An overflow opening is provided between the purification chamber and the clean water storage chamber, and the overflow opening is above the filter layer;

[0024] A return pipeline connected to its interior is installed outside the first cleaning tank. One end of the return pipeline is connected to the water tank and is connected to the purification chamber, and the connection part is below the filter layer;

[0025] The water outlet of the water pump is connected to a water delivery pipeline, and one end of the water delivery pipeline is connected to the third cleaning tank and is connected to its interior.

[0026] Preferably, the crushing assembly includes two relatively rotating crushing rollers. One end of the crushing roller is rotatably connected to the main frame, and the other end of the crushing roller is connected to the third mounting plate. The third mounting plate is installed on the main frame by bolts;

[0027] Third gears are installed at one ends of the crushing rollers, and the two third gears are meshed with each other.

[0028] Preferably, the screening assembly includes a plurality of sorting rollers arranged horizontally. One end of the sorting roller is rotatably connected to the main frame, and the other end of the sorting roller is rotatably connected to the fourth mounting plate. The fourth mounting plate is installed on the main frame by bolts;

[0029] First gears are connected to one ends of the sorting rollers, and a first tooth chain is meshed between the first gears;

[0030] The sorting roller is composed of a rotating shaft and a plurality of toothed guide vanes, and the sorting roller is installed on the outer surface of the rotating shaft;

[0031] The toothed guide vanes on the adjacent sorting rollers are staggered and there is a gap between them.

[0032] Preferably, the recycling, crushing and conveying assembly includes a spiral pushing roller, a material receiving table, an aggregate chute and a guide cylinder;

[0033] The material receiving table is installed on the main frame and is directly below the end of the screening assembly far from the crushing roller;

[0034] The aggregate chute is opened at the top of the material receiving table and is in a concave shape that gradually becomes smaller downward;

[0035] The guide cylinder is installed inside the main frame, and the bottom end of the guide cylinder is directly above the lowest part of the aggregate chute. The top of the guide cylinder is communicated with the feed inlet;

[0036] The spiral pushing roller is rotatably arranged in the guide cylinder and is in contact with its inner wall. The bottom end of the spiral pushing roller is at the lowest part of the aggregate chute.

[0037] Preferably, a second gear is installed at one end of the transfer impeller. A second tooth chain is engaged between the second gears. A second transmission wheel is installed on the outer sides of one of the second gears and the sorting roller. A first transmission belt is sleeved between the second transmission wheels;

[0038] Third transmission wheels are installed at the ends of two adjacent sorting rollers. A third transmission belt is sleeved between the third transmission wheels;

[0039] A first transmission wheel is installed at the other end of the crushing roller and at the end of one of the sorting rollers. A second transmission belt is sleeved between the feed inlets.

[0040] Preferably, a top plate is installed at the top of the main frame directly above the guide cylinder. A motor bracket is installed on the top of the top plate. A second motor is installed on the top of the motor bracket. The output shaft of the second motor is connected to the spiral pushing roller;

[0041] Both sides of the main frame are connected with covers by bolts. A first motor is installed on the outer side of the cover. The output shaft of the first motor is connected to one of the first transmission wheels.

[0042] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0043] 1. The recycling and processing equipment for waste plastics can realize the screening and re-crushing of plastics through the crushing assembly, the screening assembly and the recycling, crushing and conveying assembly, ensuring the crushing quality of plastics. Under the action of the multi-stage countercurrent cleaning device, the plastics can be continuously cleaned, and through the moving water flow with the opposite moving track of the plastics, the water contacted by the plastics becomes cleaner and cleaner during the moving process, and the cleaning effect is better.

[0044] 2. The recycling and processing equipment for waste plastics can complete the crushing, powder screening and cleaning of plastics by the drive of a single first motor. While reducing the manufacturing cost, it can reduce the vibration force for crushing waste plastics and ensure the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0046] Figure 1 It is a schematic structural diagram of the present invention;

[0047] Figure 2 It is a schematic cross-sectional structural diagram of the present invention;

[0048] Figure 3 It is a schematic structural diagram of the connection of the first mounting plate in the present invention;

[0049] Figure 4 It is a schematic structural diagram of the connection of the fourth mounting plate in the present invention;

[0050] Figure 5 It is a schematic structural diagram of the connection of the first transmission belt in the present invention;

[0051] Figure 6 It is a schematic structural diagram of the connection of the first gear in the present invention;

[0052] Figure 7 It is a schematic structural diagram of the connection of the transfer impeller in the present invention;

[0053] Figure 8 It is a schematic structural diagram of the aeration head in the present invention;

[0054] Figure 9 It is a schematic structural diagram of the position A in the present invention.

[0055] In the figure: 1. Main frame; 2. Feeding port; 2a. Material guiding plate; 3. First motor; 4. Enclosure; 5. Discharge bin; 6. Support base; 7. Water pump; 8. Sewage pipe; 9. Water tank; 9a. Purification chamber; 9b. Clean water storage chamber; 10. Return pipeline; 11. Motor bracket; 12. Second motor; 13. Transfer impeller; 14. Screw feeding roller; 15. Water pipeline; 16. Material passing slot; 17. Filter layer; 18. Filter screen; 19. Crushing roller; 20. Sorting roller; 21. Top plate; 22. First mounting plate; 23. First transmission belt; 24. Second mounting plate; 25. Third mounting plate; 26. Fourth mounting plate; 27. First transmission wheel; 28. Second transmission belt; 29. First gear; 30. First tooth chain; 31. Second gear; 32. Second tooth chain; 33. Second transmission wheel; 34. Aggregate frame; 35. Third gear; 36. Third transmission wheel; 37. Third transmission belt; 38. Aeration head; 39. Tooth-shaped guide vane; 40. Feeding guide plate; 41. Material receiving table; 42. Aggregate trough; 43. Material guiding cylinder; 44. First cleaning tank; 45. Second cleaning tank; 46. Third cleaning tank. Detailed implementation manner

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] Please refer to Figures 1 to 4 , the present invention provides a recycling processing device for waste plastics, including a main frame 1, and a crushing system and a cleaning system sequentially arranged inside the main frame 1 from top to bottom;

[0058] The top of the main frame 1 is provided with a feeding port 2 designed to be upwardly open, that is, plastic can be added by feeding into the feeding port 2.

[0059] The crushing system includes a crushing component, a screening component, and a recycling and crushing conveying component. The lowest end of the feeding port 2 is above the crushing component so that the plastic can automatically slide towards the crushing component, enabling the plastic to be smoothly crushed.

[0060] The crushing component and the recycling and crushing conveying component are respectively located at both ends of the screening component, and the crushing component is above the screening component. The plastic crushed by the crushing component falls onto the screening component for screening. The incompletely crushed plastic is conveyed back to the feeding port 2 through the recycling and crushing conveying component, so that the plastic can be crushed again to ensure the quality of plastic crushing, making the plastic crushing more thorough and uniform.

[0061] The cleaning system includes a multi-stage countercurrent cleaning device, which is arranged below the screening component. The direction of plastic transportation is opposite to the water flow direction, so that the moving track of the plastic is exactly opposite to the water flow direction, and the moving plastic is washed by cleaner and cleaner water, thus making the cleaning more thorough.

[0062] The multi-stage countercurrent cleaning device includes a plurality of cleaning tanks connected in parallel inside the main frame 1, a transfer impeller 13 installed in the cleaning tanks, and a circulating water treatment unit communicated with the cleaning tanks. Through the transfer impeller 13, the materials in each cleaning tank can be continuously turned over and transported, so that the plastic can be turned over while moving countercurrently. The multiple cleaning tanks are connected to each other, so that water can flow smoothly.

[0063] The feeding port 2 includes a guide plate 2a that gradually guides downward to the crushing component. The recycling crushing and conveying component is connected to the position of the guide plate 2a relative to the crushing component, so that the plastic can be smoothly guided to the crushing component for crushing. And a blanking guide plate 40 that gradually guides downward to the end of the cleaning tank is installed inside the main frame 1. The blanking guide plate 40 is installed between the screening component and the multi-stage countercurrent cleaning device. It is above the multi-stage countercurrent cleaning device and below the screening component, so that the plastic passed through screening can be automatically fed into the end cleaning tank, ensuring the continuity of its travel.

[0064] Please refer to Figures 1 to 3 and Figure 7 , the transfer impeller 13 includes a shaft rod and a plurality of arc-shaped plates;

[0065] One end of the shaft rod is rotatably connected to the main frame 1, and the other end of the shaft rod is rotatably connected to a second mounting plate 24. The second mounting plate 24 is installed on the main frame 1 by bolts. Through the installation of the second mounting plate 24, the transfer impeller 13 can be smoothly disassembled, facilitating its maintenance.

[0066] The shaft rod is rotatably connected to the main frame 1, and the arc-shaped plates are fixedly installed on the outside of the shaft rod. When the shaft rod rotates, the protruding surface of the arc-shaped plate picks up the plastic from bottom to top. Under the action of the rotation of the transfer impeller 13, the arc-shaped plate can smoothly pick up the plastic and, under the smooth guidance of the inclination of the arc-shaped plate, the plastic can be smoothly moved to the next cleaning tank, thus ensuring the continuity of its cleaning. At the same time, the plastic can be turned over to avoid plastic accumulation in one place, making the cleaning more thorough.

[0067] A material passing through slot 16 is formed between the cleaning tanks. The bottom of the material passing through slot 16 is lower than the center line of the shaft rod. When the outer end of the arc-shaped plate is flush with the bottom of the material passing through slot 16, the arc-shaped plate is in a downward inclined state;

[0068] A discharge bin 5 is installed on the main frame 1. The discharge bin 5 is communicated with the cleaning tank at the water inlet end, so that the plastic after cleaning can be discharged from the discharge bin 5.

[0069] Please refer to Figures 1 to 3 and Figures 7 to 8 , the transfer impeller 13 further includes an aeration head 38. The aeration head 38 is fixedly installed on both sides of the arc-shaped plate;

[0070] The inside of the shaft rod and the arc-shaped plate is hollow and communicated with the aeration head 38. One end of the shaft rod is open and can be connected to an external fan. Then, when the arc-shaped plate drives the plastic, the plastic can be aerated through the aeration head 38, so that the plastic can vibrate, making the cleaning cleaner, and can also promote the movement of the plastic, so that the cleaning effect is better.

[0071] Please refer to Figures 1 to 7 , the cleaning tank includes a first cleaning tank 44, a second cleaning tank 45, and a third cleaning tank 46 arranged horizontally in sequence;

[0072] Water passing openings are formed between the first cleaning tank 44, the second cleaning tank 45, and the third cleaning tank 46, and a filter screen 18 is installed in the water passing openings. Through the interception of the filter screen 18, the impurities inside are prevented from interacting, so as to ensure the cleaning effect of each cleaning tank;

[0073] The bottoms of the first cleaning tank 44, the second cleaning tank 45, and the third cleaning tank 46 are all provided with aggregate frames 34. The aggregate frames 34 are in a conical structure that gradually becomes smaller from top to bottom. The bottom of the aggregate frame 34 is connected with a sewage discharge pipe 8 for sewage discharge. A control valve is installed on the sewage discharge pipe 8. Through the aggregate frame 34, the impurities sinking to the bottom can be concentrated, and by opening the control valve, the impurities in the aggregate frame 34 can be discharged from the sewage discharge pipe 8, so as to facilitate the control of the water quality in the cleaning tank.

[0074] Please refer to Figures 1 to 7 , the circulating water treatment unit includes a water pump 7 and a water tank 9 connected to the water inlet of the water pump 7;

[0075] A support base 6 is installed at the bottom of the main frame 1. The water pump 7 and the water tank 9 are both installed in the support base 6;

[0076] The interior of the water tank 9 is vertically partitioned into two parts, namely a purification chamber 9a and a clean water storage chamber 9b. A filter layer 17 is installed in the middle of the purification chamber 9a. An overflow port is provided between the purification chamber 9a and the clean water storage chamber 9b, and the overflow port is above the filter layer 17. The recycled water enters from the bottom of the purification chamber 9a, then is filtered through the filter layer 17, and then the filtered water flows back into the clean water storage chamber 9b through the overflow port, facilitating its reuse;

[0077] A return pipe 10 connected to its interior is installed outside the first cleaning tank 44. One end of the return pipe 10 is connected to the water tank 9 and is in communication with the purification chamber 9a, and the communication point is below the filter layer 17. Through the return pipe 10, water can be transported into the purification chamber 9a;

[0078] The water outlet of the water pump 7 is connected to a water delivery pipeline 15. One end of the water delivery pipeline 15 is connected to and in communication with the third cleaning tank 46. Through the water pump 7, the water in the clean water storage chamber 9b can be transported into the water delivery pipeline 15 and then to the cleaning tank, that is, the cleaning tanks connected to the water delivery pipeline 15 and the blanking guide plate 40 are the cleaning tanks at both ends.

[0079] Please refer to Figures 1 to 7 , the crushing assembly includes two relatively rotating crushing rollers 19. One end of the crushing roller 19 is rotatably connected to the main frame 1, and the other end of the crushing roller 19 is connected to the third mounting plate 25. The third mounting plate 25 is installed on the main frame 1 by bolts. Through the installation of the third mounting plate 25, the crushing roller 19 can be disassembled smoothly, facilitating its maintenance;

[0080] Third gears 35 are installed at one end of each of the crushing rollers 19, and the two third gears 35 are meshed. Through the meshing of the third gears 35, the two crushing rollers 19 can rotate relative to each other smoothly.

[0081] Please refer to Figures 1 to 7 , the screening assembly includes a plurality of sorting rollers 20 arranged horizontally. One end of the sorting roller 20 is rotatably connected to the main frame 1, and the other end of the sorting roller 20 is rotatably connected to the fourth mounting plate 26. The fourth mounting plate 26 is installed on the main frame 1 by bolts. Through the installation of the fourth mounting plate 26, the sorting roller 20 can be disassembled smoothly, facilitating its maintenance;

[0082] A first gear 29 is connected to one end of the sorting roller 20. Driven by the first gear 29, the sorting roller 20 can rotate. A first tooth chain 30 is meshed between the first gears 29. Through the transmission of the first tooth chain 30, all the sorting rollers 20 can rotate;

[0083] The sorting roller 20 is composed of a rotating shaft and a plurality of toothed guide vanes 39, and the sorting roller 20 is installed on the outer surface of the rotating shaft;

[0084] The toothed guide vanes 39 on adjacent sorting rollers 20 are staggered, and there is a gap between them. Then, driven by the rotation of the sorting roller 20, the plastic on it can be made to move, that is, to transport the incompletely crushed plastic. The qualified crushed plastic falls through the gap, and through its certain length of movement, it can effectively avoid plastic accumulation, that is, the plastic can be screened during the travel process, and it will vibrate to shake off the plastic that may agglomerate.

[0085] Please refer to Figures 1 to 7 , the recycling and crushing conveying assembly includes a spiral pushing roller 14, a material receiving table 41, an aggregate chute 42, and a material guiding cylinder 43;

[0086] The material receiving table 41 is installed on the main frame 1 and is directly below the screening assembly at the end of the screening assembly away from the crushing roller 19. The incompletely crushed plastic falls onto the material receiving table 41;

[0087] The aggregate chute 42 is opened at the top of the material receiving table 41 and is in a concave shape that gradually becomes smaller downward. The plastic falling onto the material receiving table 41 can continuously concentrate towards the lowest part of the aggregate chute 42;

[0088] The material guiding cylinder 43 is installed inside the main frame 1, and the bottom end of the material guiding cylinder 43 is directly above the lowest part of the aggregate chute 42. The top of the material guiding cylinder 43 is communicated with the feeding port 2;

[0089] The spiral pushing roller 14 is rotatably arranged inside the material guiding cylinder 43 and is in contact with its inner wall. The bottom end of the spiral pushing roller 14 is at the lowest part of the aggregate chute 42. Through the rotation of the spiral pushing roller 14, the plastic at the lowest part of the aggregate chute 42 can be conveyed into the material guiding cylinder 43 and then conveyed into the feeding port 2. The top end of the material guiding cylinder 43 is located at a height higher than the crushing roller 19 of the guide plate 2a.

[0090] Please refer to Figures 1 to 7 , one end of the transfer impeller 13 is installed with a second gear 31. Through the second gear 31, the transfer impeller 13 can be driven to rotate. The second gears 31 are engaged with a second tooth chain 32. Through the transmission of the second tooth chain 32, all the second gears 31 can rotate. A second transmission wheel 33 is installed on the outer sides of one of the second gears 31 and the sorting roller 20. A first transmission belt 23 is sleeved between the second transmission wheels 33. Through the first transmission belt 23, the second transmission wheels 33 can rotate together, and then the sorting roller 20 can be linked with the transfer impeller 13;

[0091] The ends of two adjacent sorting rollers 20 are provided with third driving wheels 36, and a third driving belt 37 is sleeved between the third driving wheels 36. Through the transmission of the third driving wheels 36 and the third driving belt 37, the adjacent sorting rollers 20 can rotate together;

[0092] One end of the crushing roller 19 and the end of one of the sorting rollers 20 are provided with first driving wheels 27, and a second driving belt 28 is sleeved between the feed inlets 2. Through the first driving wheels 27 and the second driving belt 28, the crushing roller 19 and the sorting roller 20 can be linked, so that they can both rotate.

[0093] Please refer to Figures 1 to 7 , a top plate 21 is installed at the top of the main frame 1 directly above the material guiding cylinder 43. A motor bracket 11 is installed on the top of the top plate 21, and a second motor 12 is installed on the top of the motor bracket 11. The output shaft of the second motor 12 is connected to the spiral feeding roller 14. Driven by the output shaft of the second motor 12, the spiral feeding roller 14 can rotate;

[0094] Both sides of the main frame 1 are connected by bolts with covers 4. A first motor 3 is installed on the outer side of the covers 4, and the output shaft of the first motor 3 is connected to one of the first driving wheels 27. Driven by the output shaft of the first motor 3, the first driving wheel 27 can rotate.

[0095] In summary, for the recycling and processing equipment for waste plastics, during use, plastics are poured into the feed inlet 2, and then guided by the guide plate 2a, they move towards the crushing roller 19. Driven by the output shaft of the first motor 3, the first driving wheel 27 rotates, and then the crushing roller 19 can rotate. Driven by the third gear 35, the two crushing rollers 19 crush the plastics relatively;

[0096] The crushed plastics fall onto the sorting rollers 20. Driven by the second driving belt 28, the first driving wheel 27 can drive the sorting rollers 20 to rotate. Through the transmission of the first gear 29, the first tooth chain 30, the third driving wheels 36 and the third driving belt 37, all the sorting rollers 20 rotate towards the material receiving table 41, and then push the plastics thereon to generate a driving force towards the material receiving table 41. The qualified crushed plastics fall onto the blanking guide plate 40 through the gaps between the toothed guide vanes 39, and the plastics that are not completely crushed fall into the aggregate tank 42;

[0097] At this time, driven by the output shaft of the second motor 12, the spiral feeding roller 14 rotates. Through the rotation of the spiral feeding roller 14, the plastics in the aggregate tank 42 can be conveyed to the material guiding cylinder 43 and pushed into the feed inlet 2, and then through the guiding of the guide plate 2a, they are crushed again;

[0098] The plastic that falls onto the blanking guide plate 40 is guided by the blanking guide plate 40, causing the plastic to fall into the first cleaning tank 44. Under the drive of the first conveyor belt 23 and the second drive wheel 33, the transfer impeller 13 can rotate. The plastic floats on the water surface. Through the rotation of the arc-shaped plate, the protruding surface of the arc-shaped plate picks up the plastic from bottom to top. Under the action of the aeration head 38 for aeration, an impact can be generated on the plastic, making its cleaning more thorough. When the outer end of the arc-shaped plate is flush with the bottom of the material-passing through slot 16, the plastic on it slides into the second cleaning tank 45, and thus multiple flips and cleans are carried out in this way;

[0099] Meanwhile, under the action of the water pump 7, the clear water in the clear water storage chamber 9b can be pumped out, and then conveyed to the third cleaning tank 46 through the water delivery pipeline 15, and then successively through the second cleaning tank 45 and the first cleaning tank 44, forming a water flow that flows relative to the plastic. The water that the plastic contacts becomes cleaner during the movement process, and the cleaning effect is better. The cleaned plastic is finally discharged from the discharge bin 5 of each country. The water in the first cleaning tank 44 flows into the purification chamber 9a through the return pipeline 10, and then is filtered through the filter layer 17. The filtered water flows back to the clear water storage chamber 9b through the overflow port.

[0100] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A recycling and processing device for waste plastics, characterized in that: It includes a main frame (1), and a crushing system and a cleaning system that are sequentially arranged inside the main frame (1) from top to bottom; At the top of the main frame (1), there is a feed inlet (2) designed to be open upward; The crushing system includes a crushing component, a screening component, and a recycling and crushing conveying component. The lowest end of the feed inlet (2) is above the crushing component; The crushing component and the recycling and crushing conveying component are respectively at both ends of the screening component, and the crushing component is above the screening component. The plastic crushed by the crushing component falls onto the screening component for screening, and the incompletely crushed plastic is conveyed back into the feed inlet (2) through the recycling and crushing conveying component; The cleaning system includes a multi-stage countercurrent cleaning device, which is arranged below the screening component, and the direction of plastic conveyance is opposite to the water flow direction; The multi-stage countercurrent cleaning device includes a plurality of cleaning tanks (44, 45, 46) arranged in parallel inside the main frame (1), transfer impellers (13) installed in the cleaning tanks (44, 45, 46), and a circulating water treatment unit communicated with the cleaning tanks (44, 45, 46). The plurality of cleaning tanks (44, 45, 46) are communicated with each other; The feed inlet (2) includes a guide plate (2a) that gradually guides downward to the crushing component. The recycling and crushing conveying component is connected to the position of the guide plate (2a) relative to the crushing component, and a blanking guide plate (40) that gradually guides downward to the end of the cleaning tanks (44, 45, 46) is installed inside the main frame (1).

2. The circuit board detection device according to claim 1, wherein: The transfer impeller (13) includes a shaft rod and a plurality of arc-shaped plates; One end of the shaft rod is rotatably connected to the main frame (1), and the other end of the shaft rod is rotatably connected to a second mounting plate (24), and the second mounting plate (24) is installed on the main frame (1) by bolts; The shaft rod is rotatably connected to the main frame (1), the arc-shaped plates are fixedly installed on the outer side of the shaft rod. When the shaft rod rotates, the protruding surfaces of the arc-shaped plates pick up the plastic from bottom to top; A material passing through slot (16) is provided between the cleaning tanks (44, 45, 46). The bottom of the material passing through slot (16) is lower than the center line of the shaft rod, and when the outer end of the arc-shaped plate is flush with the bottom of the material passing through slot (16), the arc-shaped plate is in a downward inclined state.

3. The circuit board detection device according to claim 2, wherein: The transfer impeller (13) further includes an aeration head (38), and the aeration head (38) is fixedly installed on both sides of the arc-shaped plate; The inside of the shaft rod and the arc-shaped plates is hollow and communicated with the aeration head (38). One end of the shaft rod is open and can be connected to an external blower.

4. A circuit board detection device according to claim 1, characterized in that: The cleaning tanks (44, 45, 46) include a first cleaning tank (44), a second cleaning tank (45), and a third cleaning tank (46) arranged horizontally in sequence; Water passing ports are provided between the first cleaning tank (44), the second cleaning tank (45), and the third cleaning tank (46), and filter screens (18) are installed in the water passing ports; An aggregate frame (34) is provided at the bottom of each of the first cleaning tank (44), the second cleaning tank (45), and the third cleaning tank (46). The aggregate frame (34) has a conical structure that gradually decreases from top to bottom. A sewage discharge pipe (8) for sewage discharge is connected to the bottom of the aggregate frame (34), and a control valve is installed on the sewage discharge pipe (8).

5. The circuit board detection device according to claim 4, wherein: The circulating water treatment unit includes a water pump (7) and a water tank (9) connected to the water inlet of the water pump (7); A support base (6) is installed at the bottom of the main frame (1), and both the water pump (7) and the water tank (9) are installed inside the support base (6); The interior of the water tank (9) is vertically partitioned into two parts, a purification chamber (9a) and a clean water storage chamber (9b). A filter layer (17) is installed in the middle of the purification chamber (9a). An overflow port is provided between the purification chamber (9a) and the clean water storage chamber (9b), and the overflow port is above the filter layer (17); A reflux pipeline (10) connected to the inside of the first cleaning tank (44) is installed outside the first cleaning tank (44). One end of the reflux pipeline (10) is connected to the water tank (9) and is in communication with the purification chamber (9a), and the communication point is below the filter layer (17); The water outlet of the water pump (7) is connected to a water pipeline (15), and one end of the water pipeline (15) is connected to and in communication with the third cleaning tank (46).

6. A circuit board detection device according to any one of claims 1-4, characterized in that: The crushing assembly includes two relatively rotating crushing rollers (19). One end of the crushing roller (19) is rotatably connected to the main frame (1), and the other end of the crushing roller (19) is connected to the third mounting plate (25), and the third mounting plate (25) is installed on the main frame (1) by bolts; Third gears (35) are installed at one end of each of the crushing rollers (19), and the two third gears (35) are meshed with each other.

7. The circuit board detection device according to claim 6, characterized in that: The screening assembly includes a plurality of sorting rollers (20) arranged horizontally. One end of the sorting roller (20) is rotatably connected to the main frame (1), and the other end of the sorting roller (20) is rotatably connected to the fourth mounting plate (26), and the fourth mounting plate (26) is installed on the main frame (1) by bolts; A first gear (29) is connected to one end of the sorting roller (20), and a first chain (30) is meshed between the first gears (29); The sorting roller (20) consists of a rotating shaft and a plurality of toothed guide vanes (39), and the sorting roller (20) is installed on the outer surface of the rotating shaft; The toothed guide vanes (39) on adjacent sorting rollers (20) are staggered and there is a gap between them.

8. A circuit board detection device according to claim 7, characterized in that: The recycling, crushing, and conveying assembly includes a spiral feeding roller (14), a material receiving table (41), an aggregate trough (42), and a guide tube (43); The material receiving table (41) is installed on the main frame (1) and is directly below the end of the screening assembly away from the crushing roller (19); The aggregate trough (42) is opened at the top of the material receiving table (41) and has a concave shape that gradually decreases downward; The material guiding cylinder (43) is installed inside the main frame (1), and the bottom end of the material guiding cylinder (43) is directly above the lowest part of the aggregate chute (42). The top of the material guiding cylinder (43) is communicated with the feed inlet (2). The spiral pusher roller (14) is rotatably arranged in the material guiding cylinder (43) and is in contact with its inner wall. The bottom end of the spiral pusher roller (14) is at the lowest part of the aggregate chute (42).

9. The circuit board detection device according to claim 8, wherein: One end of the transfer impeller (13) is equipped with a second gear (31). A second chain (32) is engaged between the second gears (31). Second transmission wheels (33) are installed on the outer sides of one of the second gears (31) and the sorting roller (20). A first transmission belt (23) is sleeved between the second transmission wheels (33). Third transmission wheels (36) are installed at the ends of two adjacent sorting rollers (20). A third transmission belt (37) is sleeved between the third transmission wheels (36). A first transmission wheel (27) is installed at the other end of the crushing roller (19) and at the end of one of the sorting rollers (20). A second transmission belt (28) is sleeved between the feed inlets (2).

10. A circuit board detection device according to claim 9, characterized in that: A top plate (21) is installed at the top of the main frame (1) directly above the material guiding cylinder (43). A motor bracket (11) is installed on the top of the top plate (21). A second motor (12) is installed on the top of the motor bracket (11). The output shaft of the second motor (12) is connected to the spiral pusher roller (14). Seals (4) are connected to both sides of the main frame (1) by bolts. A first motor (3) is installed on the outer side of the seal (4). The output shaft of the first motor (3) is connected to one of the first transmission wheels (27).

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