CN113967984A

CN113967984A - Waste plastic recycling granulation production line

Info

Publication number: CN113967984A
Application number: CN202111405459.6A
Authority: CN
Inventors: 郭水忠
Original assignee: Hangzhou Dadi Haiyang Environmental Protection Co ltd
Current assignee: Hangzhou Dadi Haiyang Environmental Protection Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-01-25
Anticipated expiration: 2041-11-24
Also published as: CN113967984B

Abstract

The utility model relates to a waste plastics recycling granulation production line relates to the technical field of plastics recovery, including frame, breaker, belt cleaning device, recovery unit, belt cleaning device includes: the cleaning box is arranged on the frame and contains cleaning liquid; the first conveying belt and the second conveying belt are arranged on the cleaning box at intervals and are used for conveying flaky waste plastics; the two brushing mechanisms are arranged on the cleaning box and brush the waste plastics; the spraying mechanism is arranged on the cleaning box and used for spraying the waste plastics. This application is cleaned brush through the two sides of cleaning brush mechanism start to slice waste plastics, sprays the mechanism simultaneously and sprays waste plastics to this has reduced the quantity of impurity and grease in the recovery plastics, has improved the quality of recovery plastics.

Description

Waste plastic recycling granulation production line

Technical Field

The application relates to the technical field of plastic recycling, in particular to a waste plastic recycling granulation production line.

Background

With the increasing consumption of plastic products, the waste plastics are increasing, and the production of waste plastics in China is greatly increasing year by year, and if the subsequent treatment of the generated waste plastics is not proper, the environment is damaged and the health of people is harmed. However, waste plastics have extremely high recycling value due to their own characteristics, and recycling of waste plastics is currently widely adopted by modern chemical enterprises.

When the waste plastics are used, more impurities are adhered, particularly, when the plastics are made into an oil can to contain oil, the oil is easily adhered to the oil can, and when the waste plastics are recycled, the waste plastics are usually cleaned manually or by using common cleaning equipment, so that impurities and grease are adhered after the waste plastics are cleaned, and the impurities and grease exist in the recycled plastics, and the quality of the recycled plastics is reduced.

Disclosure of Invention

In order to improve the quality of the recycled plastics, the application provides a waste plastic recycling granulation production line.

The application provides a pair of waste plastics recycling granulation production line adopts following technical scheme:

a waste plastic recycling and granulating production line comprises a rack, wherein a crushing device, a cleaning device and a recycling device are sequentially arranged on the rack, the crushing device is used for crushing waste plastics into sheets, the cleaning device is used for cleaning the sheet waste plastics, and the recycling device is used for recycling the cleaned waste plastics after melting, extruding and granulating; the cleaning device includes:

the cleaning box is arranged on the rack and contains cleaning liquid;

the first conveying belt and the second conveying belt are arranged on the cleaning box at intervals and are used for conveying flaky waste plastics; the flaky waste plastics on the first conveying belt are overturned by 180 degrees through the overturning mechanism and then fall onto the second conveying belt for continuous conveying;

the two brushing mechanisms are arranged on the cleaning box and respectively brush the flaky waste plastics on the first conveying belt and the second conveying belt;

and the spraying mechanism is arranged on the cleaning box and is used for spraying the waste plastics on the first conveying belt and the second conveying belt.

Through adopting above-mentioned technical scheme, waste plastics get into breaker and carry out the breakage to the slice waste plastics, then the slice waste plastics get into on the first conveyer belt, the one side of brushing mechanism start to the slice waste plastics is cleaned, spray the mechanism simultaneously and spray waste plastics, then the slice waste plastics on the first conveyer belt drop to the second conveyer belt through tilting mechanism upset 180 degrees, then clean the mechanism start to clean the second side of slice waste plastics, and spray the mechanism and spray the slice waste plastics, the slice waste plastics gets into recovery unit under the second conveyer belt is carried after that, recovery unit starts to extrude the granulation with the fusion of slice waste plastics and retrieves, thereby reduced the quantity of impurity and grease in the recovery plastics, the quality of recovery plastics has been improved.

Optionally, be provided with in the frame and carry out spacing limiting plate to the waste plastics that are located on first conveyer belt and second conveyer belt, the brusher mechanism includes:

the brush plates are arranged on the cleaning box in a sliding mode, used for cleaning the flaky waste plastics and arranged at intervals;

and the driving assembly is arranged on the cleaning box and is used for driving the brush plate to move.

By adopting the technical scheme, the driving assembly is started to drive the brush plate to move, and the brush plate moves to clean the flaky waste plastics so as to clean the waste plastics; meanwhile, the limit plate limits the waste plastics, so that the probability that the waste plastics move out of the brush plate, the first conveying belt and the second conveying belt is reduced, the cleaning effect of the brush plate on the waste plastics is improved, and the quality of the recycled plastics is improved.

Optionally, the driving assembly includes:

the rotating disc is rotatably arranged on the cleaning box and is eccentrically provided with a driving rod;

the two ends of the connecting rod are respectively and rotatably connected with the driving rod and the brush plate;

and the driving motor is arranged on the cleaning box and is used for driving the rotating disc to rotate.

Through adopting above-mentioned technical scheme, driving motor starts to drive the rolling disc and rotates, and the rolling disc rotates and drives the actuating lever and rotate, and the actuating lever rotates and drives the brush board through the connecting rod and remove to this realizes that driving motor starts to drive the brush board and removes.

Optionally, a plurality of limbers have evenly been seted up on first conveyer belt and the second conveyer belt, spray the mechanism and include:

the spray pump is arranged on the cleaning box;

the first spraying pipe and the second spraying pipe are arranged on the spraying pump and are respectively used for spraying the waste plastics on the first conveying belt and the second conveying belt;

the water guide plate is arranged on the cleaning box and positioned between the first conveying belt and the second conveying belt, and the water guide plate guides the mixed liquid falling from the first conveying belt to the outer side of the second conveying belt;

the heating pipe is arranged on the cleaning box and used for heating the cleaning liquid;

and the filtering component is arranged on the cleaning box and is positioned between the second conveying belt and the spray pump and is used for filtering impurities in the cleaning liquid.

Through adopting above-mentioned technical scheme, the heating pipe heats the washing liquid, the spray pump starts, the washing liquid after the heating is to the blowout through first shower and second shower to this sprays the waste plastics that gets into both sides around the brush board below, consequently waste plastics sprays before getting into the brush board, the brush board is scrubbed waste plastics after that, then continues to spray waste plastics, with this wash waste plastics, also improved the cleaning performance to waste plastics simultaneously, the quality of retrieving plastics has been improved.

The water guide plate guides the mixed liquid falling from the first conveying belt into the cleaning box, so that the probability of the mixed liquid falling to the waste plastics on the second conveying belt is reduced, and the cleaning effect of the waste plastics is improved; and the mixed liquid that drops on mixed liquid and the second conveyer belt of water deflector water conservancy diversion moves to filter assembly together and filters to improved the cleanliness factor of washing liquid, improved the cleaning performance of washing liquid to waste plastics, also reduced simultaneously and sprayed the pump and blockked up and the probability of damaging by impurity in the mixed liquid, improved the life-span of spraying the pump, also reduced because spraying the pump damage and caused the probability of producing the line and shut down, improved the production efficiency of producing the line.

Optionally, wash on the case and be located the second conveyer belt and spray and seted up the hole of sliding between the pump, filtering component includes:

the filter frame is arranged on the sliding hole in a sliding mode and used for filtering the cleaning liquid;

the locating plate, the locating plate setting is just contradicted on wasing the case on filtering the frame.

By adopting the technical scheme, impurities are remained in the filter frame for collection, and the filtered cleaning liquid flows to the bottom of the cleaning box, so that the cleaning liquid is filtered; the pulling locating plate takes off and filters the frame and clear up, and the back is accomplished in the clearance, will filter the frame and slide and install on the hole that slides, promotes the locating plate and contradicts and filter and go on fixing a position on the frame to this realizes clearing up filtering the frame, thereby has improved the filter effect of filtering the frame to the washing liquid, has improved the cleaning performance of washing liquid to waste plastics, has improved the quality of retrieving plastics.

Optionally, the turnover mechanism includes:

the guide plate is arranged on the cleaning box in a sliding mode and located on one side, where the waste plastics are output by the first conveying belt, of the cleaning box, and the waste plastics located on the first conveying belt fall onto the second conveying belt after being turned over for 180 degrees under the action of the guide plate;

the moving assembly is arranged on the cleaning box and connected with the guide plate and used for adjusting the distance between the guide plate and the first conveying belt.

Through adopting above-mentioned technical scheme, waste plastics overturn under the deflector effect to realize that waste plastics overturn and clear up the other side, waste plastics move to the second conveyer belt under the deflector effect simultaneously, thereby you have reduced the probability that the waste plastics operation in-process drops outside the second conveyer belt and not cleared up, have improved the cleaning performance to waste plastics, have improved the quality of recovered plastics.

The unblock removes the subassembly and drives the deflector and remove, removes to accomplish the back, and the locking removes the subassembly and fixes a position the deflector to the deflector can adapt to the upset of leading to not unidimensional waste plastics, has improved the accommodation of deflector to waste plastics, when waste plastics card is between first conveyer belt and deflector, can also remove waste plastics by removing the deflector position simultaneously, has improved the convenience when taking out waste plastics.

Optionally, the moving assembly includes:

the movable screw is in threaded connection with the cleaning box and is in rotary connection with the guide plate;

and the movable nut is in threaded connection with the movable screw rod and is tightly abutted against the cleaning box.

Through adopting above-mentioned technical scheme, twist and move the nut and keep away from the washing case, then rotate the removal screw rod and drive the deflector and remove, remove the completion back, twist and move the nut and support tightly on wasing the case to this realizes adjusting the position of deflector.

Optionally, the recovery device comprises a screw extrusion granulator, a cooling mechanism and a screw conveyor which are sequentially arranged on the frame; the screw extrusion granulator is used for melting plastics and then extruding and granulating the melted plastics to obtain regenerated plastic particles; the cooling mechanism is used for cooling the regenerated plastic particles; and the spiral conveyor is used for conveying the cooled regenerated plastic particles to a storage place for storage.

By adopting the technical scheme, the screw extrusion granulator melts the waste plastics and then extrudes and granulates the waste plastics to obtain regenerated plastic particles, then the regenerated plastic particles are cooled by the cooling mechanism, and finally the screw conveyor is started to drive the cooled regenerated plastic particles to be conveyed to a storage position for storage, so that the waste plastics are recycled again; and the cooling mechanism cools down, has reduced the too high and dangerous probability that takes place of storage department recycled plastic granule temperature, has improved the security when recycled plastic granule stores, has also reduced the probability that recycled plastic granule produces adverse effect because of the too high temperature to the quality, has improved the quality of recycled plastic granule.

Optionally, the cooling mechanism comprises:

the cooling box is arranged on the rack and filled with cooling liquid;

the cooling plate is arranged on the screw extrusion granulator and is provided with a cooling cavity, a liquid outlet pipe communicated with the cooling cavity and the cooling box is arranged on the cooling plate, and a plurality of heat dissipation holes penetrating through the cooling plate are formed in the outer side wall of the cooling plate;

the cooling pump is arranged on the cooling box and is provided with a liquid inlet pipe communicated with the cooling cavity;

the two ends of the cooling pipelines are respectively connected with the screw extrusion granulator and the screw conveyer and penetrate through the cooling cavity;

the fan is arranged on the rack, and the air outlet faces the heat dissipation hole and is used for cooling the cooling plate by blowing air.

Through adopting above-mentioned technical scheme, the recycled plastic granule moves to screw conveyer from screw extruder grain cutting machine through a plurality of cooling tube, consequently the recycled plastic granule passes the cooling chamber, the cooling pump starts simultaneously, the coolant liquid passes through the feed liquor pipe and gets into the cooling chamber, the coolant liquid cools off the recycled plastic granule that passes the cooling chamber, then the coolant liquid flows back to the cooling tank in through the drain pipe, the fan starts simultaneously, cold air passes through the louvre and cools off to cooling plate and recycled plastic granule.

Therefore, the cooling liquid and the cooling air cool the regenerated plastic particles simultaneously, and the cold air cools the cooling plate and the cooling liquid simultaneously through the radiating holes, so that the cooling effect on the regenerated plastic particles is improved, when the regenerated plastic particles are conveyed through one pipeline, the cooling effect of the cooling liquid on the regenerated plastic particles in the middle of the pipeline is poor, the regenerated plastic particles are conveyed separately through a plurality of cooling pipelines, the cooling effect on the regenerated plastic particles is further improved, the probability that the regenerated plastic particles are dangerous due to overhigh temperature is reduced, the probability of generating adverse influence on the quality of the regenerated plastic particles is also reduced, and the safety and the quality of the regenerated plastic particles during storage are improved.

The cooling liquid is not contacted with the cooling liquid when cooling the regenerated plastic particles, so that the procedure of drying the regenerated plastic particles again after the contact cooling of the cooling liquid on the regenerated plastic particles is reduced, the production time of the regenerated plastic particles is shortened, and the production efficiency of a production line is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cleaning mechanism is started to clean two sides of the flaky waste plastics, and the spraying mechanism sprays the waste plastics, so that the amount of impurities and grease in the recycled plastics is reduced, and the quality of the recycled plastics is improved;

2. overturn waste plastics through the deflector to you have reduced the waste plastics operation in-process and have dropped outside the second conveyer belt and not by the probability of clearance, improved the cleaning performance to waste plastics, improved the quality of retrieving plastics.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic view of the cleaning apparatus of the present application, wherein the filter assembly has been exploded;

FIG. 3 is a schematic view of the cleaning apparatus and the turnover mechanism of the present application;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic diagram of the construction of the recycling apparatus of the present application;

FIG. 6 is a schematic view of a partial structure of a recycling apparatus according to the present application;

fig. 7 is a schematic cross-sectional view of B-B in fig. 6.

Reference numerals: 1. a frame; 11. a crusher; 2. a cleaning device; 21. a cleaning tank; 22. a first conveyor belt; 221. a water through hole; 23. a second conveyor belt; 24. a first rotating roller; 25. a second rotating roller; 26. a first delivery pipe; 27. a limiting plate; 28. a sliding hole; 3. a brushing mechanism; 31. a brush plate; 311. a slide bar; 312. fixing the rod; 313. a rotating rod; 32. a drive assembly; 33. rotating the disc; 331. a drive rod; 34. a connecting rod; 35. a drive motor; 4. a spraying mechanism; 41. a spray pump; 411. a transfusion tube; 42. a first shower pipe; 43. a second shower pipe; 44. a water guide plate; 45. heating a tube; 46. a filter assembly; 47. a filter frame; 48. positioning a plate; 5. a turnover mechanism; 51. a guide plate; 52. a moving assembly; 53. moving the screw; 54. moving the nut; 6. a recovery device; 61. a screw extrusion granulator; 62. a screw conveyor; 63. a second delivery pipe; 64. a third delivery pipe; 65. a fourth delivery pipe; 7. a cooling mechanism; 71. a cooling tank; 72. a cooling plate; 73. a cooling pump; 74. a cooling duct; 75. a fan; 76. heat dissipation holes; 77. a liquid inlet pipe; 78. a liquid outlet pipe; 79. and a cooling cavity.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a granulation production line is retrieved to waste plastics.

Referring to fig. 1, the waste plastic recycling granulation production line comprises a frame 1, a crushing device, a cleaning device 2 and a recycling device 6, wherein the crushing device is a crusher 11, the crusher 11 is used for crushing waste plastics into sheets, then the sheet waste plastics are moved to the cleaning device 2, the cleaning device 2 is used for cleaning the sheet waste plastics, and the recycling device 6 is used for melting, extruding and granulating the cleaned waste plastics and then recycling the waste plastics.

Referring to fig. 2 and 3, the cleaning device 2 includes a cleaning box 21, a first conveyor belt 22 and a second conveyor belt 23, the cleaning box 21 is fixedly installed on the frame 1, a first rotating roller 24 and a second rotating roller 25 are horizontally and rotatably installed on the inner side wall of the cleaning box 21, the first rotating roller 24 is located above the second rotating roller 25, and two first rotating rollers 24 and two second rotating rollers 25 are horizontally arranged at intervals; the first conveyor belt 22 is fitted over two first turning rollers 24 and the second conveyor belt 23 is fitted over two second turning rollers 25.

Referring to fig. 2 and 3, a first motor and a second motor are fixedly mounted on the outer side wall of the cleaning tank 21, the first motor is connected with one of the first rotating rollers 24, the second motor is connected with one of the second rotating rollers 25, the first motor and the second motor are used for driving the first conveying belt 22 and the second conveying belt 23 to move respectively, and the moving directions of the first conveying belt 22 and the second conveying belt 23 are opposite; a plurality of water through holes 221 are uniformly formed in the first conveyor belt 22 and the second conveyor belt 23, and the water through holes 221 allow the mixed liquid of the impurities on the waste plastics and the cleaning liquid to pass through.

Referring to fig. 1 and 3, a vertical first conveying pipe 26 is fixedly installed on the upper surface of the washing tank 21, and the crusher 11 is fixedly installed on the top end of the first conveying pipe 26, while the first conveying pipe 26 is located at one end of the first conveying belt 22, waste plastics crushed by the crusher 11 fall onto the first conveying belt 22 through the first conveying pipe 26, and the first conveying belt 22 moves to drive the waste plastics to be far away from the first conveying pipe 26 for conveying.

Referring to fig. 2 and 3, then, when the waste plastics move to the end of the first conveyor belt 22 remote from the first conveyor pipe 26, the waste plastics are turned over by 180 degrees by the turnover mechanism 5 and fall onto the second conveyor belt 23 to continue conveying.

Referring to fig. 2 and 3, two groups of limiting plates 27 arranged at intervals vertically are fixedly mounted on the inner side wall of the cleaning tank 21, the first conveying belt 22 is positioned between the two groups of limiting plates 27, the lower surfaces of the two groups of limiting plates 27 respectively abut against the upper surfaces of the first conveying belt 22 and the second conveying belt 23, the length direction of the limiting plates 27 is perpendicular to the axis of the first rotating roller 24, and meanwhile, two limiting plates 27 are arranged at intervals along the axis of the first rotating roller 24; the waste plastics are dropped through the first conveying belt 26 onto the first conveying belt 22 between the two stopper plates 27, and then the waste plastics are dropped from the first conveying belt 22 onto the second conveying belt 23 between the two stopper plates 27, whereby the position of the waste plastics is stopped.

Referring to fig. 2 and 3, the turnover mechanism 5 includes a guide plate 51 and a moving assembly 52, the guide plate 51 is horizontally slidably mounted on the inner side wall of the cleaning tank 21, and the guide plate 51 slides along the side close to or far from the first conveyor belt 22, while the guide plate 51 is located on the side of the first conveyor belt 22 far from the first conveyor pipe 26 and has a circular arc shape.

Referring to fig. 2 and 3, the top end of the guide plate 51 extends above the first conveyor belt 22 and inclines towards the side close to the first conveyor belt 22, the bottom end of the guide plate 51 extends below the first conveyor belt 22 and inclines towards the side close to the first conveyor belt 22, the bottom end of the guide plate 51 abuts against the upper surface of the second conveyor belt 23, waste plastics abut against the guide plate 51 under the action of the first conveyor belt 22, and then the waste plastics continue to move and turn over under the action of the guide plate 51, and the waste plastics turn over 180 degrees when moving onto the second conveyor belt 23, so that the waste plastics are turned over 180 degrees.

Referring to fig. 2 and 3, the moving assembly 52 is disposed on the cleaning tank 21 and connected to the guide plate 51, while the moving assembly 52 is used for adjusting the distance between the guide plate 51 and the first conveyor belt 22, and the moving assembly 52 is located on the side of the guide plate 51 away from the first conveyor belt 22; the moving assembly 52 comprises a moving screw 53 and a moving nut 54, the moving screw 53 penetrates through the outer side wall of the cleaning tank 21 and extends into the cleaning tank 21, the moving screw 53 is in threaded connection with the side wall of the cleaning tank 21, and meanwhile, the moving screw 53 is in rotational connection with the side wall of the guide plate 51 on the side far away from the first conveyor belt 22.

Referring to fig. 2 and 3, the moving nut 54 is screwed on the moving screw 53, and the moving nut 54 abuts against the outer side wall of the washing tank 21; an observation window (not shown) is formed in the cleaning tank 21 at a position corresponding to the guide plate 51, and the observation window facilitates observation of the distance between the guide plate 51 and the first conveyor belt 22. The movable nut 54 is screwed to move away from the cleaning box 21, then the movable screw 53 is rotated to drive the guide plate 51 to move, and simultaneously, the observation window is used for observation, and after the adjustment is completed, the movable nut 54 is screwed to abut against the outer side wall of the cleaning box 21, so that the distance between the guide plate 51 and the first conveying belt 22 is adjusted.

Referring to fig. 2 and 3, the cleaning device 2 further includes two brushing mechanisms 3 and a spraying mechanism 4, the two brushing mechanisms 3 are vertically arranged on the cleaning box 21 at intervals and are respectively located above the first conveying belt 22 and the second conveying belt 23, the two brushing mechanisms 3 are respectively used for brushing waste plastics located on the first conveying belt 22 and the second conveying belt 23, and the brushing mechanisms 3 located above the first conveying belt 22 are explained below as an example.

Referring to fig. 2 and 3, the brush cleaning mechanism 3 includes a brush plate 31 and a driving assembly 32, the brush plate 31 is horizontally slidably mounted on the cleaning box 21 through a sliding rod 311, the sliding rod 311 is fixedly mounted at both ends of the brush plate 31, and both sliding rods 311 penetrate out of the cleaning box 21, the sliding direction of the brush plate 31 is parallel to the axis of the first rotating roller 24, meanwhile, a plurality of bristles are uniformly arranged on the lower surface of the brush plate 31 and can be in contact with waste plastics on the first conveying belt 22, and bristles of the brush plate 31 above the second conveying belt 23 can be in contact with waste plastics on the second conveying belt 23, so that the bristles can clean the waste plastics on the first conveying belt 22 and the second conveying belt 23.

Referring to fig. 2 and 4, a plurality of brush plates 31 are provided at intervals in a direction perpendicular to the axis of the first rotating roller 24; the slide bars 311 located on the same side of the plurality of brush plates 31 are fixedly coupled together by the fixing bars 312. The driving assembly 32 is arranged on the cleaning box 21 and used for driving the brush plate 31 to move, and the driving assembly 32 comprises a rotating disc 33, a connecting rod 34 and a driving motor 35.

Referring to fig. 2 and 4, a vertical rotating shaft is rotatably mounted on the outer side wall of the cleaning box 21, a rotating disc 33 is coaxially and fixedly mounted on the top end of the rotating shaft, a vertical driving rod 331 is eccentrically and fixedly mounted on the upper surface of the rotating disc 33, a vertical rotating rod 313 is fixedly mounted on the upper surface of the fixed rod 312, and two ends of the connecting rod 34 are respectively rotatably connected with the driving rod 331 and the rotating rod 313; the driving motor 35 is started to drive the rotating shaft and the rotating disc 33 to rotate.

Referring to fig. 3 and 4, the rotary disk 33 rotates to move the fixing lever 312 through the connecting rod 34, the fixing lever 312 moves to move the plurality of brush plates 31, and the brush plates 31 move to scrub the waste plastics on the first and

second conveyor belts

22 and 23.

Referring to fig. 2 and 3, the spraying mechanism 4 is arranged on the cleaning box 21 and used for spraying the waste plastics on the first conveying belt 22 and the second conveying belt 23, the spraying mechanism 4 comprises a spraying pump 41, a first spraying pipe 42 and a second spraying pipe 43, a water guide plate 44 and a heating pipe 45, the spraying pump 41 is fixedly installed on the outer side wall of the cleaning box 21, the spraying pump 41 is communicated with the interior of the cleaning box 21, and a liquid conveying pipe 411 extending to the upper side of the first conveying belt 22 is fixedly installed on the spraying pump 41.

Referring to fig. 2 and 3, the first spray pipe 42 and the second spray pipe 43 are both fixedly installed on the infusion tube 411, the first spray pipe 42 is located above the first conveyor belt 22, and the axes of the first spray pipe 42 and the second spray pipe 43 are both parallel to the axis of the first rotating roller 24; the second spraying pipe 43 is positioned between the first conveying belt 22 and the second conveying belt 23, and a plurality of spraying holes are respectively formed on the lower surfaces of the first spraying pipe 42 and the second spraying pipe 43 at intervals along the axis of the first spraying pipe 42.

Referring to fig. 2 and 3, the first shower pipes 42 and the second shower pipes 43 are each provided in plurality at intervals in a direction perpendicular to the axis of the first rotating roller 24, while each brush plate 31 located above the first conveyor belt 22 is located between adjacent two first shower pipes 42, and each brush plate 31 located above the second conveyor belt 23 is located between adjacent two second shower pipes 43, so that the first shower pipes 42 and the second shower pipes 43 shower waste plastics that enter the front and rear sides below the brush plates 31.

Referring to fig. 2 and 3, the water guide plate 44 is fixedly installed on the inner side wall of the cleaning tank 21, the water guide plate 44 is located between the second spraying pipe 43 and the first conveying belt 22, and the water guide plate 44 is used for guiding the mixed liquid falling from the first conveying belt 22 to the outer side of the second conveying belt 23; the heating pipe 45 is fixedly installed on the inner bottom wall of the cleaning tank 21, and the heating pipe 45 is used for heating the cleaning liquid.

Referring to fig. 2 and 3, the spraying mechanism 4 further includes a filtering assembly 46, the filtering assembly 46 is disposed on the cleaning tank 21, the filtering assembly 46 is located between the second conveyor belt 23 and the spraying pump 41, and the filtering assembly 46 is used for filtering impurities in the cleaning liquid; a sliding hole 28 is arranged on the side wall of the cleaning box 21 and between the second conveying belt 23 and the connection part of the spraying pump 41 and the cleaning box 21.

Referring to fig. 2 and 3, the filtering assembly 46 includes a filtering frame 47 and a positioning plate 48, the filtering frame 47 is horizontally slidably mounted on the sliding hole 28, and the filtering frame 47 filters impurities in the cleaning solution, while the mixed liquid on the water guide plate 44 flows into the filtering frame 47 for filtering; the positioning plate 48 is fixedly arranged on the filter frame 47, and the positioning plate 48 is abutted against the outer side wall of the cleaning box 21 for positioning.

Referring to fig. 2 and 3, the spray pump 41 is started, the cleaning liquid is sprayed out through the spray holes on the first spray pipe 42 and the second spray pipe 43, the cleaning liquid cleans the waste plastics, the mixture of cleaned impurities and the cleaning liquid moves to the filter frame 47 through the water through hole 221 and the water guide plate 44, the impurities are collected in the filter frame 47, and the filtered cleaning liquid flows to the bottom of the cleaning tank 21 for recycling, so that the cleaning effect on the waste plastics is improved.

Referring to fig. 2 and 5, recovery unit 6 includes screw extruder grain cutting machine 61, cooling mechanism 7 and screw conveyer 62 that set gradually on frame 1, fixed mounting has the second conveyer pipe 63 with washing case 21 fixed connection on the screw extruder grain cutting machine 61, and second conveyer pipe 63 intercommunication screw extruder grain cutting machine 61 and washing case 21, and second conveyer pipe 63 is arranged in carrying the screw extruder grain cutting machine 61 with the waste plastics after accomplishing the washing simultaneously, and screw extruder grain cutting machine 61 is used for extruding the grain and obtaining the recycled plastic granule with waste plastics melting back extrusion grain cutting.

Referring to fig. 2 and 5, the cooling mechanism 7 is used for cooling the recycled plastic particles, the screw conveyor 62 is located below the cooling mechanism 7, and the screw conveyor 62 is used for conveying the cooled recycled plastic particles to a storage place for storage; a third conveying pipe 64 for outputting recycled plastic particles is fixedly installed on the screw extrusion granulator 61, a fourth conveying pipe 65 for inputting recycled plastic particles is fixedly installed on the screw conveyor 62, and the fourth conveying pipe 65 is positioned below the third conveying pipe 64.

Referring to fig. 5 and 6, the cooling mechanism 7 includes a cooling tank 71, a cooling plate 72, a cooling pump 73, a plurality of cooling pipes 74, and a fan 75, the cooling tank 71 is fixedly mounted on the rack 1 and contains a cooling liquid; a cooling plate 72 is fixedly mounted on the opposite ends of the third duct 64 and the fourth duct 65.

Referring to fig. 6 and 7, a plurality of heat dissipation holes 76 penetrating through the cooling plate 72 are uniformly formed in the side wall of the cooling plate 72, a cooling cavity 79 independent from the heat dissipation holes 76 is formed in the cooling plate 72, and a liquid inlet pipe 77 and a liquid outlet pipe 78 communicated with the cooling cavity 79 are fixedly mounted on two outer side walls of the cooling plate 72.

Referring to fig. 5 and 6, the cooling pump 73 is fixedly installed on the outer side wall of the cooling tank 71, the cooling pump 73 is communicated with the inside of the cooling tank 71, and the cooling pump 73 is fixedly connected with one end of the liquid inlet pipe 77 away from the cooling plate 72; and one end of liquid outlet pipe 78 far away from cooling plate 72 is fixedly connected with the upper surface of cooling box 71, and liquid outlet pipe 78 is communicated with the interior of cooling box 71.

Referring to fig. 6 and 7, both ends of the plurality of cooling pipes 74 are fixedly connected to opposite ends of the third transfer pipe 64 and the fourth transfer pipe 65, respectively, and the plurality of cooling pipes 74 vertically pass through the cooling plate 72 and the cooling chamber 79, and the plurality of cooling pipes 74 separately transfer the recycled plastic particles located in the third transfer pipe 64 into the fourth transfer pipe 65.

Referring to fig. 5 and 6, the fan 75 is fixedly installed on the rack 1 at one side of the cooling plate 72, and an outlet of the fan 75 faces one side of the heat dissipation hole 76. The recycled plastic particles pass through the third conveying pipe 64, the cooling pipe 74 and the fourth conveying pipe 65 in sequence, and finally the recycled plastic particles are moved to the screw conveyor 62 to be conveyed.

Referring to fig. 5 and 7, when the recycled plastic particles pass through the cooling pipe 74, the recycled plastic particles pass through the cooling chamber 79, the cooling pump 73 and the fan 75 are started, the cooling liquid enters the cooling chamber 79 through the liquid inlet pipe 77, the cooling liquid cools the recycled plastic particles, and the cooling air cools the cooling plate 72 and the cooling liquid through the heat dissipation holes 76, so that the recycled plastic particles are further cooled, and accordingly, the cooling effect on the recycled plastic particles is improved.

The working principle of the embodiment of the application is as follows:

waste plastics enter a crusher 11 to be crushed into sheet waste plastics, then the waste plastics fall onto a first conveying belt 22 through a first conveying pipe 26, cleaning liquid is sprayed on the waste plastics, then the waste plastics move to the lower part of a brush plate 31, and the brush plate 31 cleans the waste plastics, so that a first surface of the waste plastics is cleaned; then the waste material is turned over 180 degrees under the action of the guide plate 51 and falls onto the second conveying belt 23, and then the second surface of the waste plastic is continuously cleaned, so that the double surfaces of the waste plastic are cleaned, the quantity of impurities and grease in the recycled plastic is reduced, and the quality of the recycled plastic is improved.

Waste plastics after the clearance get into screw extrusion pelleter 61 through second conveyer pipe 63 and carry out the melting back and extrude the grain and obtain the recycled plastic granule, then the recycled plastic granule loops through third conveyer pipe 64, a plurality of cooling tube 74 and fourth conveyer pipe 65 get into screw conveyer 62, coolant liquid and fan cool off the recycled plastic granule simultaneously, screw conveyer 62 starts to drive the recycled plastic granule and carry the storage department and store at last, thereby reduced the recycled plastic granule when storing because the high probability of emergence danger of temperature, the security when the recycled plastic granule is stored has been improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A granulation production line is retrieved to waste plastics which characterized in that: the plastic waste granulating machine comprises a rack (1), wherein a crushing device, a cleaning device (2) and a recovery device (6) are sequentially arranged on the rack (1), the crushing device is used for crushing waste plastics into sheets, the cleaning device (2) is used for cleaning the sheet waste plastics, and the recovery device (6) is used for recovering the cleaned waste plastics after being melted, extruded and granulated; the cleaning device (2) comprises:

the cleaning box (21) is arranged on the rack (1) and contains cleaning liquid;

a first conveyor belt (22) and a second conveyor belt (23), the first conveyor belt (22) and the second conveyor belt (23) being disposed at an interval on the cleaning tank (21) and used for conveying the sheet-like waste plastics; the flaky waste plastics on the first conveying belt (22) are overturned by 180 degrees through the overturning mechanism (5) and then fall onto the second conveying belt (23) for continuous conveying;

the two brushing mechanisms (3) are arranged on the cleaning box (21) and respectively brush the flaky waste plastics on the first conveying belt (22) and the second conveying belt (23);

and the spraying mechanism (4) is arranged on the cleaning box (21) and is used for spraying the waste plastics on the first conveying belt (22) and the second conveying belt (23).

2. The waste plastic recycling granulation production line as claimed in claim 1, wherein: be provided with on frame (1) and carry out spacing limiting plate (27) to the waste plastics that are located on first conveyer belt (22) and second conveyer belt (23), brushing mechanism (3) include:

the brush plates (31) are arranged on the cleaning box (21) in a sliding mode, are used for cleaning and brushing sheet waste plastics and are arranged at intervals;

a driving component (32), wherein the driving component (32) is arranged on the cleaning box (21) and is used for driving the brush plate (31) to move.

3. The waste plastic recycling granulation production line according to claim 2, characterized in that: the drive assembly (32) comprises:

the rotating disc (33), the rotating disc (33) is rotatably arranged on the cleaning box (21) and is eccentrically provided with a driving rod (331);

the two ends of the connecting rod (34) are respectively and rotatably connected with the driving rod (331) and the brush plate (31);

the driving motor (35) is arranged on the cleaning box (21) and is used for driving the rotating disc (33) to rotate.

4. The waste plastic recycling granulation production line as claimed in claim 1, wherein: evenly seted up a plurality of limbers (221) on first conveyer belt (22) and second conveyer belt (23), spray mechanism (4) and include:

the spray pump (41), the said spray pump (41) is set up on washing the case (21);

the waste plastic conveying device comprises a first spray pipe (42) and a second spray pipe (43), wherein the first spray pipe (42) and the second spray pipe (43) are arranged on a spray pump (41), and the first spray pipe (42) and the second spray pipe (43) are respectively used for spraying waste plastic on a first conveying belt (22) and a second conveying belt (23);

the water guide plate (44) is arranged on the cleaning box (21) and is positioned between the first conveying belt (22) and the second conveying belt (23), and the water guide plate (44) guides the mixed liquid falling from the first conveying belt (22) to the outer side of the second conveying belt (23);

the heating pipe (45) is arranged on the cleaning tank (21) and used for heating the cleaning liquid;

and the filtering assembly (46), wherein the filtering assembly (46) is arranged on the cleaning box (21) and is positioned between the second conveying belt (23) and the spraying pump (41) and is used for filtering impurities in the cleaning liquid.

5. The waste plastic recycling granulation production line of claim 4, wherein: wash on case (21) and be located second conveyer belt (23) and spray pump (41) between seted up hole (28) that slides, filtering component (46) include:

the filter frame (47) is arranged on the sliding hole (28) in a sliding mode, and is used for filtering the cleaning liquid;

the positioning plate (48), the positioning plate (48) sets up on filtering frame (47) and contradicts on wasing case (21).

6. The waste plastic recycling granulation production line as claimed in claim 1, wherein: the turning mechanism (5) comprises:

the guide plate (51) is arranged on the cleaning box (21) in a sliding mode and located on the side, where the waste plastics are output by the first conveying belt (22), of the guide plate (51), and the waste plastics located on the first conveying belt (22) fall onto the second conveying belt (23) after being turned over for 180 degrees under the action of the guide plate (51);

a moving assembly (52), wherein the moving assembly (52) is arranged on the cleaning box (21) and connected with the guide plate (51) and used for adjusting the distance between the guide plate (51) and the first conveying belt (22).

7. The waste plastic recycling granulation production line of claim 6, wherein: the moving assembly (52) comprises:

a moving screw (53), wherein the moving screw (53) is in threaded connection with the cleaning box (21) and is rotationally connected with the guide plate (51);

and the moving nut (54) is in threaded connection with the moving screw rod (53) and is tightly abutted against the cleaning box (21).

8. The waste plastic recycling granulation production line as claimed in claim 1, wherein: the recovery device (6) comprises a screw extrusion granulator (61), a cooling mechanism (7) and a spiral conveyer (62) which are arranged on the rack (1) in sequence; the screw extrusion granulator (61) is used for melting plastics and then extruding and granulating the plastics to obtain regenerated plastic particles; the cooling mechanism (7) is used for cooling the regenerated plastic particles; the spiral conveyor (62) is used for conveying the cooled recycled plastic particles to a storage place for storage.

9. The waste plastic recycling granulation production line of claim 8, wherein: the cooling mechanism (7) includes:

the cooling box (71), the cooling box (71) is arranged on the frame (1) and filled with cooling liquid;

the cooling plate (72) is arranged on the screw extrusion granulator (61) and provided with a cooling cavity (79), a liquid outlet pipe (78) communicated with the cooling cavity (79) and the cooling box (71) is arranged on the cooling plate (72), and a plurality of heat dissipation holes (76) penetrating through the cooling plate (72) are formed in the outer side wall of the cooling plate (72);

a cooling pump (73), wherein the cooling pump (73) is arranged on the cooling tank (71) and is provided with a liquid inlet pipe (77) communicated with the cooling cavity (79);

a plurality of cooling pipes (74), wherein two ends of the plurality of cooling pipes (74) are respectively connected with the screw extrusion granulator (61) and the screw conveyor (62) and penetrate through the cooling cavity (79);

the fan (75) is arranged on the rack (1), and the air outlet of the fan (75) faces the heat dissipation hole (76) and is used for cooling the cooling plate (72) by blowing air.