A device for recovering and washing off aluminum foil

Abstract

The application discloses a kind of aluminized paper recycling elution device, including elution tank and bearing box, the elution tank is equipped with two groups of partition, the two groups of partition are also connected with sealing plate, inert solvent and degumming agent are respectively equipped in sealing cavity and elution cavity, the elution tank is equipped with telescopic link, the end of telescopic link is connected with supporting plate, the sealing cavity is also equipped with horizontal transfer mechanism, the sealing plate is equipped with feed pipe, and the sidewall of the elution tank is provided with discharge port, this aluminized paper recycling elution device, by setting sealing cavity and elution cavity, by setting inert solvent as the transition area between import and export to elution cavity in sealing cavity, degumming agent in elution cavity does not contact external space in the whole process, so as to effectively avoid its volatilization to outside, and because the density of two solutions is different, therefore, degumming agent can be separated in inert reagent in bearing box, further prevent its influence on operator and environment.

Description

Technical Field

[0001] This invention relates to the field of aluminized paper technology, specifically to an aluminized paper recycling and washing device. Background Technology

[0002] Metallized paper is mainly composed of base paper, aluminum layer and coating. It has good gloss and smoothness, good flexibility, high adhesion of aluminum coating, and is beautiful and environmentally friendly. It also has good printing and machining performance. Therefore, it can be widely used for exquisite packaging of products such as cigarettes, wine, bottle labels, tea, food, cosmetics, daily chemicals, department stores, gifts, and handicrafts. It can also be used in building decoration materials.

[0003] Vacuum-metallized paper can be classified into two types according to its production process: direct vapor deposition and transfer vapor deposition. In the transfer vapor deposition method, a vacuum-metallized PET film is coated with adhesive and then laminated with cardboard. The PET film is then peeled off, and aluminum molecules are transferred to the cardboard surface through the adhesive. The transfer vapor deposition method is further divided into full-width transfer and partial transfer. After partial transfer and peeling, the metallized film surface retains both the metallized layer and the adhesive layer, making it unusable and requiring disposal as waste film, causing serious environmental pollution and resource waste.

[0004] Existing methods for reusing the film from the metallized paper production process involve using a degumming agent for elution to increase the contact between the solution and aluminum. However, this degumming agent is toxic and volatile, requiring a sealed operation during elution. Regardless of the sealing method, the film will inevitably carry degumming agent or evaporated degumming agent with it during removal, which is detrimental to operators and the environment. Therefore, we propose a metallized paper recycling and elution device. Summary of the Invention

[0005] The purpose of this invention is to provide an aluminized paper recycling and washing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an aluminized paper recycling washing and dewatering device, comprising a washing and dewatering tank and a carrier tank for containing a film. The washing and dewatering tank is provided with two sets of vertically upward partitions, and a horizontally arranged sealing plate is connected between the two sets of partitions. The sealing plate and the two sets of partitions divide the cavity inside the washing and dewatering tank into a washing chamber and a sealed chamber. An inert solvent and a degumming agent are respectively provided in the sealed chamber and the washing and dewatering chamber. A telescopic rod is provided directly below the washing chamber inside the washing and dewatering tank. A support plate is connected to the end of the telescopic rod. The support plate is used to send the carrier tank from the sealed chamber into the washing chamber. The washing and dewatering tank has an inlet and an outlet on both sides of the washing chamber, respectively. A pull-out mechanism is provided directly above the outlet. A lateral transfer mechanism is also provided in the sealed chamber. The lateral transfer mechanism causes the carrier tank to move laterally. A feed pipe is provided on the sealing plate, and a discharge port is opened on the side wall of the washing and dewatering tank. The discharge port is located inside the washing and dewatering chamber.

[0007] Preferably, the lateral transfer mechanism includes an inclined plate fixed to the bottom of the washing chamber and inclined at one end, which is higher than the other end. The upper surface of the inclined plate located below the washing chamber has a receiving groove adapted to the tray. A stepped shaft is fixedly connected to the bottom of the tray. An installation cylinder sleeved with the stepped shaft is fixedly connected to the top of the telescopic rod. A first elastic element is also provided between the installation cylinder and the stepped shaft.

[0008] Preferably, the pallet is rotatably connected to a plurality of limiting plates at one end of the outlet, and a second elastic element is provided between the non-limiting end of the limiting plate and the pallet.

[0009] Preferably, the inlet side wall of the washing tank is provided with a delaying element, which slides against the side wall of the carrying tank and slows down its sinking speed.

[0010] Preferably, the inert solvent is a perfluorinated solvent.

[0011] Preferably, the pulling mechanism is a mechanical claw, a hook, or a magnetic adsorption component.

[0012] Preferably, the washing chamber is made of transparent material or partially transparent, and the outside of the washing chamber is provided with three sets of scale lines from top to bottom. The middle scale line is located at the lowest position of the discharge port, the height between the bottom scale line and the sealing plate is greater than the height of the carrying box, and the position of the top scale line is higher than the lower surface of the sealing plate. The volume of the sealed cavity between the middle scale line and the top scale line is the same as the volume of the washing cavity between the bottom scale line and the sealing plate.

[0013] Preferably, the carrier box has a hollow structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention sets up a sealed chamber and an elution chamber. An inert solvent is set up in the sealed chamber as a transition area between the inlet and outlet to the elution chamber. Throughout the process, the degumming agent in the elution chamber will not come into contact with the external space, thereby effectively preventing it from evaporating into the outside. At the same time, because the two solutions have different densities, the degumming agent can be separated from the carrier box in the inert solvent, further preventing it from affecting the operator and the environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a half-section of the washing chamber of the present invention and a schematic diagram showing the position of the scale lines;

[0018] Figure 3This is a schematic diagram showing the state of the carrier box of the present invention in three different positions inside the washing and dehydration chamber;

[0019] Figure 4 A schematic diagram showing the connection structure between the support plate and the telescopic rod;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of the structure in area A;

[0021] Figure 6 This is a schematic diagram of a half-section of the pallet.

[0022] Figure 7 This is a schematic diagram of one possible structural configuration of the carrier box.

[0023] In the diagram: 1-washing and extracting tank; 2-carrying tank; 3-partition plate; 4-sealing plate; 5-washing and extracting chamber; 6-sealing chamber; 7-telescopic rod; 8-support plate; 9-inlet; 10-outlet; 11-pull-out mechanism; 12-lateral transfer mechanism; 13-feed pipe; 14-discharge port; 15-sloping plate; 16-accommodating groove; 17-stepped shaft; 18-mounting cylinder; 19-first elastic element; 20-limiting plate; 21-second elastic element; 22-delaying element; 23-scale line. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-7This invention provides a technical solution: a metallized paper recycling washing and descaling device, comprising a washing and descaling tank 1 and a carrier tank 2 for holding films. The carrier tank 2 has a hollow structure. The carrier tank 2 is used to hold the films, therefore a descaling agent needs to enter and impregnate it. The hollow structure facilitates solvent entry without causing film detachment. Further, partitions can be installed inside to separate each film, or they can be arranged in an S-shape. The washing and descaling tank 1 has two sets of vertically upward partitions 3. A horizontally arranged sealing plate 4 connects the two sets of partitions 3. The sealing plate 4 and the two sets of partitions 3 divide the cavity inside the washing and descaling tank 1 into a washing chamber 5 and a sealed chamber 6. The sealed chamber 6 and the washing chamber 5 respectively contain an inert solvent and a descaling agent. The sealing plate 4 and the partitions 3 form one area, while the other... The elution chamber 5 of Part 1 is U-shaped. The inert solvent here is similar in definition to the inert gas, both being solvents that do not readily undergo chemical reactions. Furthermore, due to compatibility issues between the two liquids, the inert solvent must also possess properties that prevent incompatibility with the degumming agent in order to seal it. The inert solvent is a perfluorinated solvent. Perfluorinated solvents are characterized by: a higher density than ordinary organic solvents, a wide boiling point range, being a high-density, colorless, non-toxic liquid with high thermal stability, low refractive index, low surface tension, and low dielectric constant. Perfluorinated solvents are excellent solvents for gases, capable of dissolving large amounts of hydrogen, oxygen, nitrogen, and carbon dioxide, but have poor solubility in ordinary organic solvents and organic compounds. Therefore, a perfluorinated solvent is preferred as the inert solvent.

[0026] The elution chamber 1 is equipped with a telescopic rod 7 located directly below the elution chamber 5. The end of the telescopic rod 7 is connected to a support plate 8, which is used to send the carrier box 2 from the sealed chamber 6 into the elution chamber 5. The elution chamber 1 has an inlet 9 and an outlet 10 on both sides of the elution chamber 5. The side wall of the inlet 9 of the elution chamber 1 is provided with a delaying element 22. The delaying element 22 slides against the side wall of the carrier box 2 and slows down its sinking speed. The delaying element 22 is a structure such as foam or airbag, and is distributed on the side wall of the elution chamber 1 located at the inlet 9. The top view cross section of the outer edge of the delaying element 22 is adapted to the cross section of the carrier box 2. Because the foam or airbag has elasticity, it can contact the carrier box 2 without causing the carrier box 2 to fall. The increased friction from contact and the buoyancy generated by the solvent will effectively slow down the sinking speed of the carrier box 2. The slow sinking can prevent air bubbles on the carrier box 2 or its internal film from being carried into the degumming agent.

[0027] A pull-out mechanism 11 is located directly above the outlet 10. The pull-out mechanism 11 is used to remove the carrier box 2 from the washing tank 1. The pull-out mechanism 11 can be a mechanical gripper, a hook, or a magnetic adsorption assembly. Since the function of the pull-out mechanism 11 is simply to move up and down and pull the carrier box 2 out at its lowest point, its structure only requires a device for up and down movement and a connecting structure. It can be a mechanical gripper using a clamping method, or a hook that can rotate to hang the container. A magnetic adsorption method uses an electromagnet to control the connection by switching it on and off. Different configurations are possible. The method is adapted to the top of the carrier box 2. The sealing cavity 6 is also provided with a lateral transfer mechanism 12, which makes the carrier box 2 move laterally. The sealing plate 4 is provided with a feed pipe 13, and the side wall of the washing and dehydrating box 1 is provided with a discharge port 14. The discharge port 14 is used for discharge when changing the degumming agent. The discharge port 14 is located in the washing and dehydrating chamber 5. The lateral transfer mechanism 12 is because it is necessary to push the carrier box laterally and then send it into the washing and dehydrating chamber 5 for wetting through the telescopic rod 7. For example, a lateral telescopic mechanism is provided on one side of the washing and dehydrating box 1 for pushing.

[0028] The washing chamber 1 is made of transparent material or partially transparent. Three sets of graduation lines 23 are arranged on the outside of the washing chamber 1 from top to bottom. The middle graduation line 23 is located at the lowest position of the discharge port 14. The height between the lowest graduation line 23 and the sealing plate 4 is greater than the height of the carrying box 2, and the position of the uppermost graduation line 23 is higher than the lower surface of the sealing plate 4. The volume of the sealed cavity 6 between the middle graduation line 23 and the uppermost graduation line 23 is the same as the volume of the washing cavity between the lowermost graduation line 23 and the sealing plate 4. Each of the three sets of graduation lines 23 has a positioning function. The uppermost graduation line 23 represents inertia... The height of the inert solvent is indicated by the bottom mark 23, which represents the boundary between the degumming agent and the inert solvent. The middle mark 23 indicates the height of the discharge port 14, which is also the height of the inert solvent after the degumming agent has been completely discharged. In addition, during the entire process, especially during the pulling out of the carrier tank 2, the inert solvent will inevitably be lost. Therefore, the carrier tank 2 needs to be drained and replenished in small amounts each time. If it is not replenished, the overall liquid level will drop, causing the degumming agent level to drop, thus preventing complete wetting. Furthermore, the negative pressure space generated inside will cause the degumming agent to evaporate.

[0029] The lateral transfer mechanism 12 includes an inclined plate 15 fixed to the bottom of the elution chamber 1 and inclined at one end. The inclined plate 15 is located at the inlet 9 at a higher end than the other end. The purpose of the inclined plate 15 is to facilitate the automatic sliding of the carrier 2 without the need for a mechanism to push it. Because the more moving parts there are in the solvent, the more inconvenient it is to repair them after damage. Therefore, the internal moving parts are minimized, and the mechanism itself is used to move it. The upper surface of the inclined plate 15 located below the elution chamber 5 is provided with a receiving groove 16 that is adapted to the support plate 8. The bottom of the support plate 8 is fixedly connected to a stepped shaft 17, and the top of the telescopic rod 7 is fixedly connected to an installation cylinder 18 that is sleeved with the stepped shaft 17. A first elastic element 19 is also provided between the stepped shaft 17 and the stepped shaft 17. The protruding ring in the middle of the stepped shaft 17 contacts and rotates with the inside of the mounting cylinder 18. The two protruding sides in the middle of the stepped shaft 17 are elastically connected to the mounting cylinder 18 through the first elastic element 19, that is, connected by a torsion spring or other structure. The two ends of the stepped shaft 17 are fixedly connected to the support plate 8. The function of the receiving groove 16 is to accommodate the support plate 8 and form an integral part with it, so that the carrying box 2 can continue to slide to the other end and finally be pulled out. The function of the stepped shaft 17 and the first elastic element 19 is to keep the support plate 8 automatically aligned to a horizontal state when it rises with the telescopic rod 7, so as to push the sliding carrying box 2 upward into the degumming agent. The telescopic rod 7 is preferably a hydraulic rod.

[0030] The pallet 8 is rotatably connected to multiple sets of limiting plates 20 at one end of the outlet 10. A second elastic element 21 is provided between the non-limiting end of the limiting plate 20 and the pallet 8. Without the limiting plate 20, the pallet 8 needs to lift the carrying box 2 at a specific position, that is, when the carrying box 2 slides above the pallet 8, it must be lifted upwards, otherwise it will continue to slide to the other end. It is necessary to grasp the timing. Therefore, the limiting plate 20 is set to restrict the position and make it more convenient. In use, first, the telescopic rod 7 is supported, and only raised slightly. Because of the action of the first elastic element 19, the pallet 8 will return to the horizontal state slightly, and the inclination is less than the inclination of the inclined plate 15. And the end near the inlet 9 is not in contact with the inclined plate 15. Separation occurs, so the carrier box 2 will naturally slide onto the tray 8. However, because the other end of the tray 8 is detached from the inclined plate 15, under the action of the second elastic element 21, the limiting plate 20 rotates above the upper surface of the tray 8, thereby restricting and positioning the movement of the carrier box 2. After positioning, it continues to move upward, and the tray 8 moves to a horizontal state and then pushes the carrier box 2 into the washing chamber 5. After the standard soaking time is reached, the telescopic rod 7 moves downward. When the limiting plate 20 contacts the receiving groove surface on the inclined plate 15, it will compress the second elastic element 21. Finally, the limiting plate 20 and the tray 8 both return to the same degree of inclination as the surface of the inclined plate 15. Under the action of gravity, the carrier box 2 continues to slide directly below the outlet 10.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metallized paper recycling and washing device, characterized in that, The system includes a washing chamber (1) and a carrier box (2) for holding the film. The washing chamber (1) has two sets of vertically upward-facing partitions (3). A horizontally positioned sealing plate (4) connects the two sets of partitions (3). The sealing plate (4) and the two sets of partitions (3) divide the cavity inside the washing chamber (1) into a washing chamber (5) and a sealed chamber (6). An inert solvent and a degumming agent are respectively placed in the sealed chamber (6) and the washing chamber (5). A telescopic rod (7) is located directly below the washing chamber (5) inside the washing chamber (1). A support plate (8) is connected to the end of the telescopic rod (7). The plate (8) is used to send the carrier box (2) from the sealed cavity (6) into the washing cavity (5). The washing box (1) is located on both sides of the washing cavity (5) with an inlet (9) and an outlet (10) respectively. A pull-out mechanism (11) is provided directly above the outlet (10). A transverse transfer mechanism (12) is also provided in the sealed cavity (6). The transverse transfer mechanism (12) makes the carrier box (2) move laterally. A feed pipe (13) is provided on the sealing plate (4), and a discharge port (14) is opened on the side wall of the washing box (1). The discharge port (14) is located in the washing cavity (5). The lateral transfer mechanism (12) includes an inclined plate (15) fixed to the bottom of the washing tank (1) and inclined. One end of the inclined plate (15) is higher than the other end of the inlet (9). The upper surface of the inclined plate (15) located below the washing chamber (5) is provided with a receiving groove (16) adapted to the tray (8). The bottom of the tray (8) is fixedly connected to a stepped shaft (17). The top of the telescopic rod (7) is fixedly connected to an installation cylinder (18) sleeved with the stepped shaft (17). A first elastic element (19) is also provided between the installation cylinder (18) and the stepped shaft (17). The pallet (8) is rotatably connected to a plurality of limiting plates (20) at one end of the outlet (10), and a second elastic element (21) is provided between the non-limiting end of the limiting plate (20) and the pallet (8). The inlet (9) of the washing tank (1) is provided with a delaying element (22) on the side wall. The delaying element (22) slides against the side wall of the carrying box (2) and slows down its sinking speed. The washing and desorption chamber (1) is made of transparent material or partially transparent, and the washing and desorption chamber (1) is provided with three sets of scale lines (23) from top to bottom. The middle scale line (23) is located at the lowest position of the discharge port (14). The height between the bottom scale line (23) and the sealing plate (4) is greater than the height of the carrying box (2). The position of the top scale line (23) is higher than the lower surface of the sealing plate (4). The volume of the sealed cavity (6) between the middle scale line (23) and the top scale line (23) is the same as the volume of the washing cavity between the bottom scale line (23) and the sealing plate (4). The top mark (23) represents the height of the inert solvent, while the bottom mark (23) represents the boundary between the degumming agent and the inert solvent. The middle mark (23) is the height of the discharge port (14), which is also the height of the inert solvent after the degumming agent has been completely discharged. When in use, first prop up the telescopic rod (7) and raise it only slightly. Because of the action of the first elastic element (19), the support plate (8) will return to a horizontal position slightly, with an inclination less than that of the inclined plate (15). The end near the inlet (9) is not separated from the inclined plate (15), so the carrying box (2) will naturally slide onto the support plate (8). However, because the other end of the support plate (8) is separated from the inclined plate (15), under the action of the second elastic element (21), the limiting plate (20) rotates above the upper surface of the support plate (8), thereby affecting the carrying box (2). The movement of the pallet (8) serves to restrict and position the container. After positioning, it continues to move upward. The pallet (8) moves to a horizontal position and then pushes the container (2) into the washing chamber (5). After the soaking reaches the standard time, the telescopic rod (7) moves downward. When the limiting plate (20) contacts the surface of the receiving groove on the inclined plate (15), it will compress the second elastic element (21). Finally, the limiting plate (20) and the pallet (8) are restored to the same degree of inclination as the surface of the inclined plate (15). Under the action of gravity, the container (2) continues to slide to the direct below the outlet (10).

2. The aluminized paper recycling and washing device according to claim 1, characterized in that: The inert solvent is a perfluorinated solvent.

3. The aluminized paper recycling and washing device according to claim 1, characterized in that: The pulling mechanism (11) is a mechanical claw, hook or magnetic adsorption assembly.

4. The aluminized paper recycling and washing device according to claim 1, characterized in that: The carrier box (2) has a hollow structure.

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