Continuous wave type flotation washing equipment for waste plastic recovery

Abstract

The invention discloses a waste plastic recovery continuous wave type floating washing device, and relates to the technical field of plastic recovery, the waste plastic recovery continuous wave type floating washing device comprises a floating washing pool, the waste plastic recovery continuous wave type floating washing device comprises a feeding hopper, and the feeding hopper is obliquely installed at the top end of the floating washing pool; the shifting and draining mechanism is arranged between the floating washing pool and the feeding hopper, and the shifting and draining mechanism is used for stirring water containing a flotation reagent in the floating washing pool and draining the suspended plastics to be conveyed to the feeding hopper by utilizing water waves generated by stirring at the same time; the aeration assembly is arranged between the floating washing tank and the shifting and draining mechanism, the shifting and draining mechanism is used for being matched with the shifting and draining mechanism to continuously aerate water containing a floating reagent in the floating washing tank, the device can stir the floating washing reagent and the water, meanwhile, the floating plastic is drained and collected in a centralized mode, and the collecting efficiency of the floating plastic is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic recycling, in particular to a continuous wave flotation washing device for recycling waste plastics. Background Art

[0002] The development of the plastic industry has brought great benefits to mankind, but it has also left behind endless troubles, namely "white pollution". As time goes by, more new raw materials are put into use, which has led to a substantial increase in waste plastics. Since waste plastics are not easy to age and degrade at room temperature, they have formed an increasing white pollution, causing serious damage to the ecological environment. Therefore, the recycling of waste plastics can achieve a virtuous cycle of resource utilization and protect the environment, which is of far-reaching significance. In the process of recycling waste plastics, the crushed plastics need to be floated and washed, that is, the crushed plastics are placed in a pool containing flotation agents, and are separated and collected according to the buoyancy differences caused by the differences in material density. In order to improve the flotation effect, when collecting the existing suspended plastics after crushing, a vertically installed agitator is usually used to stir the flotation agent in the pool, and then the suspended plastics are salvaged and collected by personnel. Not only is the salvage and collection efficiency of personnel low, but the suspended plastics are easily affected by the stirring and drift around, which increases the difficulty of collecting the suspended plastics. In view of this, the present invention proposes a waste plastic recycling continuous wave flotation washing device to make up for and improve the deficiencies of the prior art. Summary of the invention

[0003] In order to solve the above technical problems, the technical solution adopted by the present invention is: a waste plastic recycling continuous wave flotation washing device, including a flotation washing tank, a waste plastic recycling continuous wave flotation washing device including: Feed hopper, the feed hopper is installed obliquely at the top of the flotation tank; The shifting and draining mechanism is arranged between the flotation tank and the feeding hopper, and is used to stir the water containing the flotation agent in the flotation tank, and utilize the water waves generated by the stirring to drain the suspended plastics and transport them to the feeding hopper; The aeration component is arranged between the flotation tank and the displacement and drainage mechanism, and the displacement and drainage mechanism is used to cooperate with the displacement and drainage mechanism to continuously aerate the water containing flotation reagents in the flotation tank.

[0004] Preferably, the shifting and draining mechanism includes a servo motor fixedly connected to the outer surface of the flotation washing tank, the output end of the servo motor is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to a stirring rod, the end of the stirring rod away from the rotating shaft is fixedly connected to a material shifting plate, and the outer surface of the rotating shaft is fixedly connected to a main turntable.

[0005] Preferably, the shifting and draining mechanism also includes a support platform fixedly connected to the top of the flotation washing tank, a rotating shaft is rotatably connected to the support platform, one end of the rotating shaft is fixedly connected to a main gear disk, the other end of the main gear disk is fixedly connected to a storage roller, an auxiliary turntable is fixedly connected to the outer surface of the rotating shaft, and a belt is connected to the auxiliary turntable and the main turntable for transmission.

[0006] Preferably, a scraping hopper is fixedly connected to the outer surface of the storage roller, a water filter hole is provided on the scraping hopper, a material through hole is provided on the storage roller, and the material through hole is communicated with the scraping hopper.

[0007] Preferably, the shifting and draining mechanism also includes a supply and shift rack fixedly connected to the outer surface of the floating washing tank, the supply and shift rack is slidably connected to a mobile rack, the mobile rack is slidably connected to a swing block, the swing block is fixedly connected to a secondary gear disc through a rotating rod, and the secondary gear disc is meshed with the main gear disc.

[0008] Preferably, a cam is fixedly connected to the outer surface of the main gear disc, an end of the cam away from the main gear disc is fixedly connected to a limiting slider, and the limiting slider is slidably connected to the support platform.

[0009] Preferably, the aeration assembly includes an air supply nozzle fixedly connected to the bottom of the flotation tank, one end of the air supply nozzle is connected to an air supply pipe, the end of the air supply pipe away from the air supply nozzle is connected to an air storage cylinder, the inner wall of the air storage cylinder is slidably connected to a piston block, and the top end of the piston block is fixedly connected to a positioning rod.

[0010] Preferably, a one-way air intake valve is fixedly mounted on the piston block, and one end of the positioning rod away from the piston block is fixedly connected to the movable frame.

[0011] Preferably, a baffle is fixedly connected to the top of the feeding hopper, and the baffle is in an eight-shaped shape.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses the material-diverting plate, the scraping hopper and the feeding hopper in coordination, and can utilize the continuous rotation of the rotating shaft to make the stirring rod carry the material-diverting plate in the flotation tank to rotate continuously, so as to stir the flotation agent and water, and utilize the stirring water waves to centrally transport the floating plastic toward the storage roller, and the belt is linked by the auxiliary turntable and the main turntable, so that the rotating shaft carries the storage roller to rotate continuously, and utilizes the scraping hopper to collect and drain the floating plastic, and utilizes inertia to throw it into the feeding hopper for centralized collection, so that the floating plastic can be drained and collected centrally while stirring the flotation agent and water, thereby improving the collection efficiency of the floating plastic. The present invention, through the coordinated use of the shifting and draining mechanism and the aeration component, can utilize the continuous rotation of the main toothed disc to make the auxiliary toothed disc carry the moving frame, and move back and forth up and down on the moving frame, thereby linking the piston block located in the air storage cylinder to move up and down, and then cooperate with the one-way air intake valve to allow external air to continuously pass through the air supply pipe and the air supply nozzle to supply air to the flotation tank, so as to aerate the flotation agent and water in the flotation tank, further accelerate the mixing of the flotation agent and water, and accelerate the collection of floating plastics. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 The present invention shows Figure 1 The enlarged structural diagram at A in the middle; Figure 3 The present invention shows Figure 1 The enlarged structural diagram at B in the middle; Figure 4 It is a schematic diagram of the connection structure between the storage roller and the scraping hopper shown in the present invention; Figure 5 This is a schematic diagram of the split structure of the main gear disc and the auxiliary gear disc shown in the present invention; Figure 6 It is a schematic diagram of the disassembled structure of the piston block and the air storage cylinder shown in the present invention.

[0014] The numbers in the figure are: 1. Floating washing tank; 2. Feeding hopper; 3. Transfer and drain mechanism; 4. Aeration component; 5. Baffle; 31. servo motor; 32. rotating shaft; 33. stirring rod; 34. material-digging plate; 35. main turntable; 36. belt; 37. auxiliary turntable; 38. rotating shaft; 39. material storage roller; 310. supporting platform; 311. main gear plate; 312. cam; 313. scraping hopper; 314. water filter hole; 315. auxiliary gear plate; 316. swing block; 317. moving frame; 318. supply and moving frame; 41. Positioning rod; 42. Piston block; 43. One-way air intake valve; 44. Air reservoir; 45. Air supply pipe; 46. Air supply nozzle. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Embodiments of the present invention Please refer to Figures 1 to 6 As shown, a waste plastic recycling continuous wave flotation washing device includes a flotation washing tank 1, a waste plastic recycling continuous wave flotation washing device includes: A feeding hopper 2, the feeding hopper 2 is obliquely installed at the top of the flotation tank 1; The shifting and draining mechanism 3 is arranged between the flotation tank 1 and the feeding hopper 2, and is used to stir the water containing the flotation agent in the flotation tank 1, and utilize the water waves generated by the stirring to drain the suspended plastics and transport them to the feeding hopper 2; The aeration component 4 is disposed between the flotation tank 1 and the displacement and drainage mechanism 3, and the displacement and drainage mechanism 3 is used to cooperate with the displacement and drainage mechanism 3 to continuously aerate the water containing the flotation agent in the flotation tank 1; The shifting and draining mechanism 3 includes a servo motor 31 fixedly connected to the outer surface of the flotation tank 1, the output end of the servo motor 31 is fixedly connected to a rotating shaft 32, the outer surface of the rotating shaft 32 is fixedly connected to a stirring rod 33, the end of the stirring rod 33 away from the rotating shaft 32 is fixedly connected to a material shifting plate 34, and the outer surface of the rotating shaft 32 is fixedly connected to a main turntable 35; The shifting and draining mechanism 3 also includes a support platform 310 fixedly connected to the top of the flotation tank 1, a rotating shaft 38 is rotatably connected to the support platform 310, one end of the rotating shaft 38 is fixedly connected to a main toothed disc 311, the other end of the main toothed disc 311 is fixedly connected to a storage roller 39, the outer surface of the rotating shaft 38 is fixedly connected to a secondary rotating disc 37, and a belt 36 is connected between the secondary rotating disc 37 and the main rotating disc 35; The outer surface of the storage roller 39 is fixedly connected with a scraper hopper 313, and the scraper hopper 313 is provided with a water filter hole 314. The storage roller 39 is provided with a material through hole, and the material through hole is connected with the scraper hopper 313; The shifting and draining mechanism 3 also includes a supply and shift frame 318 fixedly connected to the outer surface of the flotation tank 1, a mobile frame 317 is slidably connected to the supply and shift frame 318, a swing block 316 is slidably connected to the mobile frame 317, and the swing block 316 is fixedly connected to the auxiliary toothed disc 315 through a rotating rod, and the auxiliary toothed disc 315 is meshed and matched with the main toothed disc 311; The outer surface of the main gear plate 311 is fixedly connected with a cam 312, and one end of the cam 312 away from the main gear plate 311 is fixedly connected with a limit slider, and the limit slider is slidably connected with the support platform 310; The aeration assembly 4 includes an air supply nozzle 46 fixedly connected to the bottom end of the flotation tank 1, one end of the air supply nozzle 46 is connected to an air supply pipe 45, and the end of the air supply pipe 45 away from the air supply nozzle 46 is connected to an air storage cylinder 44, the inner wall of the air storage cylinder 44 is slidably connected to a piston block 42, and the top end of the piston block 42 is fixedly connected to a positioning rod 41; A one-way air intake valve 43 is fixedly mounted on the piston block 42, and one end of the positioning rod 41 away from the piston block 42 is fixedly connected to the moving frame 317; The top of the feeding hopper 2 is fixedly connected with a baffle 5, and the baffle 5 is in an eight-shaped shape; Supplementary explanation: the material-diverting plate 34 is horizontally installed in the flotation tank 1, and the material-diverting plate 34 is used to stir the flotation agent and water in the flotation tank 1, and generate water waves toward the storage roller 39, so as to transport the floating plastic; A rotation supply rod is fixed at the center of the auxiliary gear disc 315, and the rotation supply rod is also fixedly connected to the cam 312 and the limit slider; The supply and transfer frame 318 is provided with a limited sliding groove and a supporting groove respectively. The supply and transfer frame 318 is slidably connected with the moving frame 317 through the limited sliding groove, and the supply and transfer frame 318 is slidably connected with the positioning rod 41 through the supporting groove; The air supply nozzles 46 are equidistantly arranged below the material stripping plate 34, and the air supply nozzles 46 are used to supply air to the flotation tank 1 while preventing the water flow in the flotation tank 1 from entering the air supply pipe 45; The above scheme is adopted: by using the set material-diverting plate 34, the scraping hopper 313 and the feeding hopper 2 in cooperation, the continuous rotation of the rotating shaft 32 can be used to make the stirring rod 33 carry the material-diverting plate 34 in the floating washing tank 1 and rotate continuously, so as to stir the floating washing agent and water, and use the stirring water waves to concentrate the floating plastics toward the storage roller 39, and the belt 36 is linked by the auxiliary turntable 37 and the main turntable 35, so that the rotating shaft 38 carries the storage roller 39 to rotate continuously, and the scraping hopper 313 is used to collect and drain the floating plastics, and inertia is used to throw them into the feeding hopper 2 for centralized collection, so that the floating washing agent and water can be stirred, and the floating plastics can be drained and collected, thereby improving the collection efficiency of floating plastics; By cooperating with the set shifting and draining mechanism 3 and the aeration assembly 4, the main toothed disc 311 can be continuously rotated to make the auxiliary toothed disc 315 carry the movable frame 317 and move back and forth up and down on the movable frame 318, thereby linking the piston block 42 located in the air storage cylinder 44 to move up and down, and then cooperating with the one-way air intake valve 43 to allow external air to continuously pass through the air supply pipe 45 and the air supply nozzle 46 to supply air to the flotation tank 1, so as to aerate the flotation agent and water in the flotation tank 1, further accelerate the mixing of the flotation agent and water, and accelerate the collection of floating plastics.

[0017] The working principle and use process of the present invention: First, the staff pours the flotation agent and water into the flotation tank 1, and drives the servo motor 31 through the control panel. At this time, since the output end of the servo motor 31 is fixedly connected to the rotating shaft 32, the outer surface of the rotating shaft 32 is fixedly connected to the stirring rod 33, and the stirring rod 33 is fixedly connected to the material-diverting plate 34, the material-diverting plate 34 is prompted to continuously stir the flotation agent and water; Subsequently, the staff pours the crushed waste plastics into the flotation tank 1, so that the waste plastics are separated according to the density difference under the effect of the flotation agent, that is, some plastics with low density float on the water surface, while plastics with high density sink down. At this time, the plastics floating on the water surface are moved toward the scraper 313 by the water waves of the water flow driven by the rotating material plate 34. Since the rotating shaft 38 is connected to the support table 310, one end of the rotating shaft 38 is fixedly connected to the main toothed disc 311, and the other end of the main toothed disc 311 is fixedly connected to the storage roller 39, the outer surface of the rotating shaft 38 is fixedly connected to the main toothed disc 311. The auxiliary turntable 37 is fixedly connected, and a belt 36 is driven between the auxiliary turntable 37 and the main turntable 35. The outer surface of the storage roller 39 is fixedly connected to the scraping hopper 313. The scraping hopper 313 is provided with a water filter hole 314, so that the storage roller 39 and the scraping hopper 313 rotate along with the rotation of the stirring rod 33, and the floating plastics are scraped by the scraping hopper 313, and the water carried by them is drained through the water filter hole 314, and finally thrown into the feeding hopper 2 by inertia for centralized collection, which can be used to stir the floating washing agent and water while draining the floating plastics for centralized collection; At the same time, since the supply and transfer frame 318 is slidably connected to the mobile frame 317, the mobile frame 317 is slidably connected to the swing block 316, the swing block 316 is fixedly connected to the auxiliary gear plate 315 through the rotating rod, and the auxiliary gear plate 315 is meshed with the main gear plate 311, and one end of the positioning rod 41 is fixedly connected to the mobile frame 317, the mobile frame 317 is prompted to move up and down along the supply and transfer frame 318 along with the rotation of the main gear plate 311, and the air supply nozzle 46 is connected to the air supply pipe 45, the air supply pipe 45 is connected to the air storage cylinder 44, and the inner wall of the air storage cylinder 44 The piston block 42 is slidably connected, and the top of the piston block 42 is fixedly connected to the positioning rod 41, and a one-way air intake valve 43 is fixedly installed on the piston block 42, so that when the positioning rod 41 moves up along with the supply and transfer frame 318, external air is sucked into the air storage cylinder 44 through the one-way air intake valve 43, and when it moves down, the piston block 42 squeezes the inhaled external air into the air supply pipe 45, so that the external air continues to pass through the air supply pipe 45 and the air supply nozzle 46 and is supplied to the flotation tank 1, so as to aerate the flotation agent and water in the flotation tank 1, and further accelerate the mixing of the flotation agent and water.

[0018] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous wave flotation washing device for recycling waste plastics, comprising a flotation washing tank (1), characterized in that: The waste plastic recycling continuous wave flotation washing equipment comprises: A feeding hopper (2), wherein the feeding hopper (2) is obliquely installed at the top of the flotation tank (1); A displacement and drainage mechanism (3), wherein the displacement and drainage mechanism (3) is arranged between the flotation tank (1) and the feed hopper (2), and the displacement and drainage mechanism (3) is used to stir the water containing the flotation agent in the flotation tank (1), and utilize the water waves generated by the stirring to drain the suspended plastics and transport them to the feed hopper (2); An aeration component (4), wherein the aeration component (4) is arranged between the flotation tank (1) and the displacement and drainage mechanism (3), and the displacement and drainage mechanism (3) is used to cooperate with the displacement and drainage mechanism (3) to continuously aerate the water containing the flotation agent in the flotation tank (1).

2. The waste plastic recycling continuous wave flotation washing equipment according to claim 1 is characterized in that: The shifting and draining mechanism (3) comprises a servo motor (31) fixedly connected to the outer surface of the flotation tank (1); the output end of the servo motor (31) is fixedly connected to a rotating shaft (32); the outer surface of the rotating shaft (32) is fixedly connected to a stirring rod (33); one end of the stirring rod (33) away from the rotating shaft (32) is fixedly connected to a material shifting plate (34); and the outer surface of the rotating shaft (32) is fixedly connected to a main rotating disk (35).

3. The waste plastic recycling continuous wave flotation washing equipment according to claim 2 is characterized in that: The shifting and draining mechanism (3) further comprises a support platform (310) fixedly connected to the top of the flotation tank (1); a rotating shaft (38) is rotatably connected to the support platform (310); one end of the rotating shaft (38) is fixedly connected to a main toothed disc (311); the other end of the main toothed disc (311) is fixedly connected to a material storage roller (39); an outer surface of the rotating shaft (38) is fixedly connected to a secondary rotating disc (37); a belt (36) is transmission-connected between the secondary rotating disc (37) and the main rotating disc (35).

4. The waste plastic recycling continuous wave flotation washing equipment according to claim 3 is characterized in that: The outer surface of the material storage roller (39) is fixedly connected to a scraping hopper (313), a water filter hole (314) is provided on the scraping hopper (313), and a material through hole is provided on the material storage roller (39), and the material through hole is communicated with the scraping hopper (313).

5. The waste plastic recycling continuous wave flotation washing equipment according to claim 3 is characterized in that: The shifting and draining mechanism (3) further comprises a supply and shift frame (318) fixedly connected to the outer surface of the floating washing tank (1); a moving frame (317) is slidably connected to the supply and shift frame (318); a swing block (316) is slidably connected to the moving frame (317); the swing block (316) is fixedly connected to the auxiliary toothed disc (315) via a rotating rod; and the auxiliary toothed disc (315) is meshed and matched with the main toothed disc (311).

6. The waste plastic recycling continuous wave flotation washing equipment according to claim 3 is characterized in that: A cam (312) is fixedly connected to the outer surface of the main gear disc (311), one end of the cam (312) away from the main gear disc (311) is fixedly connected to a limit slider, and the limit slider is slidably connected to the support platform (310).

7. The waste plastic recycling continuous wave flotation washing equipment according to claim 1, characterized in that: The aeration assembly (4) comprises an air supply nozzle (46) fixedly connected to the bottom end of the flotation tank (1); one end of the air supply nozzle (46) is connected to an air supply pipe (45); one end of the air supply pipe (45) away from the air supply nozzle (46) is connected to an air storage cylinder (44); a piston block (42) is slidably connected to the inner wall of the air storage cylinder (44); and a positioning rod (41) is fixedly connected to the top end of the piston block (42).

8. The waste plastic recycling continuous wave flotation washing equipment according to claim 7 is characterized in that: A one-way air intake valve (43) is fixedly mounted on the piston block (42), and one end of the positioning rod (41) away from the piston block (42) is fixedly connected to the moving frame (317).

9. The waste plastic recycling continuous wave flotation washing equipment according to claim 1, characterized in that: A baffle (5) is fixedly connected to the top end of the feeding hopper (2), and the baffle (5) is in an eight-shaped shape.

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