Aluminum-plastic separation and recovery pretreatment device

Abstract

The utility model relates to the technical field of solid waste resourceful treatment, in particular to an aluminum-plastic separation and recovery pretreatment device. According to the technical scheme, the aluminum-plastic separation and recovery pretreatment device comprises a supporting frame, a control box, an air entraining shell, a flame projector, a cracking furnace body, a spiral plate and the like; a control box is fixedly connected to the front portion of the supporting frame, an air entraining shell is fixedly connected to the top of the supporting frame, a plurality of flamethrowers are fixedly connected to the two sides of the air entraining shell in a linear array mode, the flamethrowers are electrically connected with the control box, a cracking furnace body is rotatably connected to the interior of the air entraining shell, and a closed cavity is formed between the air entraining shell and the cracking furnace body. A spiral plate is fixedly connected inside the cracking furnace body. The first motor drives the gear to be meshed with the gear ring on the outer wall of the cracking furnace body, so that the cracking furnace body slowly rotates to enable the spiral plate to rotate, aluminum-plastic waste is conveyed into the furnace body, and continuous feeding and uniform distribution are ensured.

Description

Technical Field

[0001] This utility model relates to the field of solid waste resource utilization technology, and in particular to an aluminum-plastic separation and recycling pretreatment device. Background Technology

[0002] Aluminum-plastic recycling refers to the process of sorting, processing, and reusing waste containing aluminum and plastic composite materials. This type of waste typically includes food packaging bags, pharmaceutical packaging, and beverage cartons, which are composed of multiple layers of different materials, increasing the difficulty of recycling. Aluminum-plastic recycling first uses mechanical sorting technology to separate aluminum from plastic; commonly used equipment includes crushers, air separators, and magnetic separators.

[0003] Traditional acid-base dissolution methods use strong acids or alkalis to treat aluminum-plastic waste to recover metallic aluminum. This process generates large amounts of wastewater containing aluminum chloride, aluminum sulfate, and other substances. Multiple water washes are required to remove impurities and neutralize the reaction solution, further increasing the wastewater volume. Improper treatment can pollute water bodies and soil, damage ecosystems, and potentially lead to secondary pollution of the environment by heavy metal ions.

[0004] Therefore, it is necessary to design an aluminum-plastic separation and recycling pretreatment device to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the drawbacks of traditional acid-base dissolution methods for aluminum-plastic waste recycling, which generate large amounts of wastewater containing aluminum chloride and aluminum sulfate, require multiple washes to further increase the wastewater volume, and can easily pollute water bodies and soil, damage the ecosystem, and cause secondary heavy metal pollution if not properly treated, this utility model provides an aluminum-plastic separation and recycling pretreatment device.

[0006] The technical solution is as follows: An aluminum-plastic separation and recycling pretreatment device includes a support frame, a control box, an air intake shell, a burner, a pyrolysis furnace body, a spiral plate, an exhaust pipe, a feed pipe, and a discharge pipe. The control box is fixedly connected to the front of the support frame, and the air intake shell is fixedly connected to the top of the support frame. Multiple burners are fixedly connected in a linear array on both sides of the air intake shell. The multiple burners are electrically connected to the control box. The pyrolysis furnace body is rotatably connected inside the air intake shell, and a sealed cavity is formed between the air intake shell and the pyrolysis furnace body. The spiral plate is fixedly connected inside the pyrolysis furnace body. The exhaust pipe is connected and communicated to the top of the air intake shell. The feed pipe is connected and communicated to one side of the pyrolysis furnace body, and the discharge pipe is connected and communicated to the other side of the pyrolysis furnace body.

[0007] Optionally, the air vent housing is made of a high-temperature resistant and heat-insulating material.

[0008] Optionally, it also includes a first motor, a gear, a gear ring, and a protective cover. The first motor is fixedly connected to the top of the support frame. The first motor is electrically connected to the control box. The output shaft of the first motor extends to the left and is fixedly connected to the gear. The gear ring is fixedly connected to the outside of the feed pipe. The gear meshes with the gear ring. The protective cover is rotatably connected to the outside of the feed pipe.

[0009] Alternatively, both the gear and the gear ring are located inside the protective cover.

[0010] Optionally, it also includes a guide cover, a feeding frame, a cover plate, a second motor, and a feeding wheel. The guide cover is rotatably connected to one side of the feeding pipe. The guide cover is fixedly connected to the protective cover. The lower part of the guide cover has an inclined structure. The top of the guide cover is connected to and communicates with the feeding frame. The cover plate is slidably placed on the top of the feeding frame. The second motor is fixedly connected to the front of the feeding frame. The second motor is electrically connected to the control box. The output shaft of the second motor extends into the feeding frame and is fixedly connected to the feeding wheel. Multiple material pieces are fixedly arranged in a circular array on the feeding wheel.

[0011] Optionally, the spacing between any two opposing material pieces on the feeding roller is equal to the width of the feeding frame's unloading channel.

[0012] Optionally, it also includes a fixed shell, an electric heating tube, and a heat-conducting plate. The fixed shell is connected and communicates with the right side of the feed frame. The electric heating tube is fixedly connected inside the fixed shell and is electrically connected to the control box. The heat-conducting plate is fixedly connected to the left side of the feed frame.

[0013] The beneficial effects of this utility model are as follows: 1. This utility model uses a first motor to drive a gear to mesh with a gear ring on the outer wall of the pyrolysis furnace body, thereby achieving a slow rotation of the pyrolysis furnace body and causing the spiral plate to rotate, which transports aluminum-plastic waste into the furnace body, ensuring continuous and uniform feeding. At the same time, the flame from the burner heats the sealed cavity through the heat-conducting groove plate, indirectly heating the furnace body. When the temperature inside the furnace rises to 150°C, pyrolysis gas begins to be generated, entering the effective pyrolysis stage, accelerating the reaction speed, replacing the traditional acid-base dissolution method, and improving the aluminum-plastic separation efficiency and resource recovery rate.

[0014] 2. This utility model starts the second motor through the control box, drives the feeding wheel to rotate, and makes the material sheet move in a circle along its axis, thereby feeding the aluminum-plastic waste stuck between the two material sheets into the guide cover in sequence, realizing automatic material feeding and continuous feeding, improving the uniformity and stability of feeding, reducing manual intervention, and improving overall work efficiency.

[0015] 3. This utility model, through the coordinated design of the feeding frame and the feeding wheel, prevents aluminum-plastic waste from falling directly into the guide hood in the initial stage, effectively preventing material blockage or uneven feeding during the feeding process; at the same time, the electric heating tube is activated by the control box, and the generated hot air is conducted to the inside of the feeding frame through the heat conduction plate to perform constant temperature heating treatment on the aluminum-plastic waste at 120°C for 30 minutes, effectively removing the moisture adsorbed on the surface of the waste, improving the subsequent pyrolysis efficiency and reducing energy consumption. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the support frame, control box, and air intake shell of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the exhaust pipe, feed pipe, and discharge pipe of this utility model.

[0019] Figure 4 This is a schematic diagram of the covering structure for components such as gears, gear rings, and protective covers of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the material guide cover, feeding frame, and cover plate of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1: support frame, 2: control box, 3: induced draft shell, 4: flamethrower, 5: pyrolysis furnace body, 501: spiral plate, 6: exhaust pipe, 7: feed pipe, 8: discharge pipe, 9: first motor, 10: gear, 11: gear ring, 12: protective cover, 13: guide cover, 14: feed frame, 15: cover plate, 16: second motor, 17: feeding wheel, 18: fixed shell, 19: electric heating tube, 20: heat conduction plate. Detailed Implementation

[0022] Example: An aluminum-plastic separation and recycling pretreatment device, such as Figures 1-5As shown, the system includes a support frame 1, a control box 2, an exhaust housing 3, flamethrowers 4, a pyrolysis furnace body 5, a spiral plate 501, an exhaust pipe 6, a feed pipe 7, and a discharge pipe 8. The control box 2 is screwed onto the front left side of the support frame 1. The exhaust housing 3 is screwed onto the top of the support frame 1. The exhaust housing 3 is made of high-temperature resistant and heat-insulating material. Three flamethrowers 4 are screwed onto the front and rear sides of the exhaust housing 3 in a linear array. All six flamethrowers 4 are electrically connected to the control box 2. The pyrolysis furnace body 5 is rotatably connected to the inside of the exhaust housing 3. A sealed cavity is formed between the exhaust housing 3 and the pyrolysis furnace body 5. The spiral plate 501 is welded onto the inside of the pyrolysis furnace body 5. The exhaust pipe 6 is connected and connected to the top center of the exhaust housing 3. The feed pipe 7 is connected and connected to the left side of the pyrolysis furnace body 5. The discharge pipe 8 is connected and connected to the right side of the pyrolysis furnace body 5.

[0023] like Figure 1 and Figure 4 As shown, it also includes a first motor 9, a gear 10, a gear ring 11, and a protective cover 12. The first motor 9 is installed on the top left side of the support frame 1 by screws. The first motor 9 is electrically connected to the control box 2. The output shaft of the first motor 9 extends to the left and is welded to the gear 10. The gear ring 11 is welded to the outside of the feed pipe 7. The gear 10 and the gear ring 11 mesh. The protective cover 12 is rotatably connected to the outside of the feed pipe 7. The gear 10 and the gear ring 11 are both located inside the protective cover 12.

[0024] like Figure 1 and Figure 5 As shown, it also includes a guide cover 13, a feeding frame 14, a cover plate 15, a second motor 16, and a feeding wheel 17. The guide cover 13 is rotatably connected to the left side of the feeding pipe 7. The guide cover 13 and the protective cover 12 are installed by screws. The lower part of the guide cover 13 has an inclined structure. The top of the guide cover 13 is connected to and communicates with the feeding frame 14. The cover plate 15 is slidably placed on the top of the feeding frame 14. The second motor 16 is installed on the lower front side of the feeding frame 14 by screws. The second motor 16 is electrically connected to the control box 2. The output shaft of the second motor 16 extends into the feeding frame 14 and is welded to the feeding wheel 17. Multiple material pieces are welded in a ring array on the outer side of the feeding wheel 17. The distance between each pair of opposite material pieces on the feeding wheel 17 is equal to the width of the feeding channel of the feeding frame 14.

[0025] like Figure 5 As shown, it also includes a fixed shell 18, an electric heating tube 19 and a heat-conducting plate 20. The right side of the feed frame 14 is connected to and communicates with the fixed shell 18. The electric heating tube 19 is installed inside the fixed shell 18 by screws. The electric heating tube 19 is electrically connected to the control box 2. The heat-conducting plate 20 is installed inside the left side of the feed frame 14 by screws.

[0026] The operator first manually pulls the cover plate 15 out of the feeding frame 14, and then pours the aluminum-plastic waste into the feeding frame 14 manually or mechanically. At this time, the distance between the two opposite material pieces on the feeding wheel 17 is equal to the width of the feeding channel of the feeding frame 14. Therefore, the aluminum-plastic waste cannot fall directly into the guide cover 13 below. Next, the electric heating tube 19 is activated by the control box 2 to generate hot air. The hot air is conducted to the inside of the feeding frame 14 through the heat conduction plate 20, so that the aluminum-plastic waste is kept at a constant temperature of 120°C for 30 minutes to remove the moisture adsorbed on the surface of the raw material, which helps to improve the subsequent pyrolysis efficiency and reduce energy consumption.

[0027] After moisture removal, the operator starts the second motor 16 via control box 2. Its output shaft drives the feeding wheel 17 to rotate. As the feeding wheel 17 rotates, the material sheet moves in a circular motion along its axis. The aluminum-plastic waste that was originally stuck between the two material sheets can then fall smoothly into the guide shroud 13. The bottom of the guide shroud 13 adopts an inclined structure design, which can guide the waste to slide into the feed pipe 7. The feeding wheel 17 continues to rotate, causing the material sheet to continuously feed the aluminum-plastic waste into the guide shroud 13, thereby achieving continuous feeding. Under the action of the guide shroud 13, the waste slowly fills the entire feed pipe 7. When the feed pipe 7 is full of material, the operator starts the first motor 9. Its output shaft drives the gear 10 to rotate. The gear 10 and the fixed The gear ring 11 on the outer wall of the pyrolysis furnace body 5 meshes with the furnace body and drives the entire pyrolysis furnace body 5 to rotate slowly under the action of transmission. The spiral plate 501 in the feed pipe 7 rotates synchronously with the furnace body, and evenly transports the aluminum-plastic waste into the interior of the pyrolysis furnace body 5 until the furnace body is filled. At this time, the second motor 16 and the electric heating tube 19 are turned off to stop the feeding and drying process. Then, all the burners 4 are started through the control box 2. The burners 4 spray flames and gradually heat up to 400°C at a rate of 10°C / min. The hot gas generated by combustion enters the sealed cavity outside the pyrolysis furnace body 5 through the heat conduction groove plate to indirectly heat the pyrolysis furnace body 5, ensuring that the hot gas does not come into contact with the material and avoid local overheating or oxidation reaction.

[0028] When the temperature inside the pyrolysis furnace 5 rises to 150°C, pyrolysis gas begins to be generated, indicating that the pyrolysis reaction has officially started. Throughout the pyrolysis process, a slight negative pressure is maintained to ensure reaction safety and promote the smooth discharge of gaseous products. At the same time, the rotation of the spiral plate 501 disturbs the material, forming a dynamic pyrolysis atmosphere, which is conducive to heat transfer and accelerates the reaction rate. After pyrolysis is completed, the reaction products are discharged through the discharge pipe 8 and enter the next separation process. Excess hot gas in the sealed cavity is discharged through the exhaust pipe 6 and sent to the purification equipment for treatment. After meeting the standards, it is discharged. At this time, the operator can turn off the burner 4 and the first motor 9 through the control box 2 to stop the heating and rotation of the pyrolysis furnace 5. If it is necessary to continue processing the next batch of aluminum-plastic waste, the above process can be repeated. If the device is no longer needed, the cover plate 15 is pushed back into the feed frame 14 to complete the device shutdown.

Claims

1. An aluminum-plastic separation and recycling pretreatment device, characterized in that, It includes a support frame (1), a control box (2), an air intake shell (3), a flamethrower (4), a pyrolysis furnace body (5), a spiral plate (501), an exhaust pipe (6), a feed pipe (7), and a discharge pipe (8). The control box (2) is fixedly connected to the front of the support frame (1), and the air intake shell (3) is fixedly connected to the top of the support frame (1). Multiple flamethrowers (4) are fixedly connected to both sides of the air intake shell (3) in a linear array. The multiple flamethrowers (4) are electrically connected to the control box (2). The pyrolysis furnace body (5) is rotatably connected inside the air intake shell (3). A sealed cavity is formed between the air intake shell (3) and the pyrolysis furnace body (5). The spiral plate (501) is fixedly connected inside the pyrolysis furnace body (5). The exhaust pipe (6) is connected and communicated to the top of the air intake shell (3). The feed pipe (7) is connected and communicated to one side of the pyrolysis furnace body (5), and the discharge pipe (8) is connected and communicated to the other side of the pyrolysis furnace body (5).

2. The aluminum-plastic separation and recycling pretreatment device according to claim 1, characterized in that, The air intake shell (3) is made of high temperature resistant heat insulation material.

3. The aluminum-plastic separation and recycling pretreatment device according to claim 2, characterized in that, It also includes a first motor (9), a gear (10), a gear ring (11) and a protective cover (12). The first motor (9) is fixedly connected to the top of the support frame (1). The first motor (9) is electrically connected to the control box (2). The output shaft of the first motor (9) extends to the left and is fixedly connected to the gear (10). The gear ring (11) is fixedly connected to the outside of the feed pipe (7). The gear (10) meshes with the gear ring (11). The protective cover (12) is rotatably connected to the outside of the feed pipe (7).

4. The aluminum-plastic separation and recycling pretreatment device according to claim 3, characterized in that, Both the gear (10) and the gear ring (11) are located inside the protective cover (12).

5. The aluminum-plastic separation and recycling pretreatment device according to claim 4, characterized in that, It also includes a guide cover (13), a feeding frame (14), a cover plate (15), a second motor (16), and a feeding wheel (17). The guide cover (13) is rotatably connected to one side of the feeding pipe (7). The guide cover (13) is fixedly connected to the protective cover (12). The lower part of the guide cover (13) is inclined. The top of the guide cover (13) is connected to and communicates with the feeding frame (14). The cover plate (15) is slidably placed on the top of the feeding frame (14). The second motor (16) is fixedly connected to the front of the feeding frame (14). The second motor (16) is electrically connected to the control box (2). The output shaft of the second motor (16) extends into the feeding frame (14) and is fixedly connected to the feeding wheel (17). Multiple material pieces are fixedly arranged in a ring array on the feeding wheel (17).

6. The aluminum-plastic separation and recycling pretreatment device according to claim 5, characterized in that, The spacing between any two opposite material pieces on the feeding wheel (17) is equal to the width of the feeding channel of the feeding frame (14).

7. The aluminum-plastic separation and recycling pretreatment device according to claim 6, characterized in that, It also includes a fixed shell (18), an electric heating tube (19) and a heat-conducting plate (20). The right side of the feed frame (14) is connected to and communicates with the fixed shell (18). The electric heating tube (19) is fixedly connected inside the fixed shell (18). The electric heating tube (19) is electrically connected to the control box (2). The left side of the feed frame (14) is fixedly connected to the heat-conducting plate (20).

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