Thermal radiation double-layer paint removal roller structure for removing paint from secondary aluminum of zip-top can

Abstract

The utility model discloses a thermal radiation double-layer depainting roller structure for depainting secondary aluminum of a zip-top can, which comprises a depainting outer cylinder, a feeding end seat and a discharging end seat are respectively arranged at two ends of the depainting outer cylinder, and a depainting inner cylinder is arranged in the depainting outer cylinder. The waste ring-pull can paint removing device is provided with the paint removing outer cylinder, the paint removing inner cylinder and the back flushing base, the structural design of the double-layer cylinder body and the back flushing base is adopted, indirect pyrolysis paint removing is conducted on waste ring-pull cans in a heat radiation and back flushing convection mode, the paint removing effect is good, and the paint removing effect is good. Metal loss of the waste zip-top cans during depainting treatment is effectively reduced, the metal recovery rate reaches 98% or above, the metal recovery rate of the waste zip-top cans is greatly improved, open fire does not exist in the double-layer depainting roller, low-temperature depainting treatment is adopted, no water mist is generated in the process, and the depainting efficiency and quality are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of paint removal technology for recycled aluminum cans, specifically relating to a heat radiation double-layer paint removal roller structure for paint removal from recycled aluminum cans. Background Technology

[0002] With increasing environmental awareness, the recycling and reuse of waste aluminum cans has become a focus of social attention. During the recycling process, the paint layer on the surface of waste aluminum cans not only affects subsequent processing but may also cause environmental pollution. Therefore, aluminum can paint stripping equipment plays a crucial role in the waste aluminum can recycling industry chain. The paint stripping equipment plays a vital role in the paint stripping and disposal of waste aluminum cans. Through paint stripping, the paint layer on the surface of waste aluminum cans is peeled off, which facilitates subsequent processing and utilization. The paint stripping roller is an important piece of equipment for the thermal devarnishing treatment of waste aluminum cans.

[0003] Existing paint stripping rollers are mostly single-layer cylinder structures, where the fuel heat energy acts directly on the aluminum can inside the cylinder, leading to excessive metal loss during the heat-spraying process. This results in low paint stripping quality and affects the use of the aluminum cans. To address this, we propose a heat radiation double-layer paint stripping roller structure for aluminum can recycling. Utility Model Content

[0004] The purpose of this invention is to provide a heat radiation double-layer paint stripping roller structure for aluminum recycled cans, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat radiation double-layer paint stripping roller structure for aluminum can recycling, comprising,

[0006] The paint stripping outer cylinder has a feed end seat and a discharge end seat at its two ends, respectively.

[0007] A paint stripping inner cylinder is disposed inside the paint stripping outer cylinder;

[0008] A back-blowing seat is provided inside the discharge end seat at a position corresponding to the paint stripping inner cylinder.

[0009] Preferably, the paint stripping outer cylinder is driven by a motor to rotate between the feed end seat and the discharge end seat.

[0010] Preferably, the inner wall of the paint stripping outer cylinder is provided with equally spaced spiral conveyor strips.

[0011] Preferably, one end of the paint stripping inner cylinder passes through the feed end seat and is connected to the heat energy conveying pipe, while the other end of the paint stripping inner cylinder extends toward the discharge end seat without contacting it.

[0012] Preferably, the paint stripping inner cylinder and the back-blowing seat are aligned and distributed, and the paint stripping inner cylinder and the back-blowing seat do not contact each other.

[0013] Preferably, the lower part of the back-blowing seat and the discharge end seat have a discharge notch.

[0014] Preferably, the back-blowing seat has a first annular stepped groove and a second annular stepped groove that are progressively advanced. A back-blowing frustum is provided at the center of the second annular stepped groove. The back-blowing frustum and the paint stripping inner cylinder are aligned and distributed.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model includes a paint stripping outer cylinder, a paint stripping inner cylinder, and a back-blowing seat. In use, waste aluminum cans enter the paint stripping outer cylinder through the inlet end seat. Driven by a motor, the outer cylinder rotates between the inlet and outlet ends, causing the waste aluminum cans to be spirally conveyed towards the outlet end seat via a spiral conveyor. During this process, heat energy is transferred into the paint stripping inner cylinder through a heat energy conveying pipe. The inner cylinder then uses thermal radiation to thermally devarnish the waste aluminum cans conveyed in the outer cylinder. The heat energy is then directly blown through the inner cylinder to the back-blowing seat. The back-blowing disc on the back-blowing seat guides the heat energy to the first and second annular stepped grooves on the inner side, and then through the first and second annular stepped grooves... The two-ring stepped groove backflushs between the outer and inner paint stripping cylinders and moves towards the feed end seat. During the backflushing process, the waste aluminum cans conveyed in the outer paint stripping cylinder undergo thermal devarnishing. Instead of directly using fuel combustion equipment for thermal devarnishing of the waste aluminum cans, the structural design of the inner paint stripping cylinder and backflush seat uses heat radiation and backflush convection to indirectly devarnish the waste aluminum cans, effectively reducing metal loss during paint stripping. The metal recovery rate reaches over 98%, greatly improving the metal recovery rate of waste aluminum cans. There is no open flame inside the double-layer paint stripping drum, and low-temperature paint stripping is used, with no water mist generated during the process, greatly improving paint stripping efficiency and quality. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the paint stripping outer cylinder of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the paint stripping outer cylinder and the paint stripping inner cylinder of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the discharge end seat and backflush seat of this utility model.

[0021] In the diagram: 1. Paint stripping outer cylinder; 2. Feeding end seat; 3. Discharge end seat; 4. Paint stripping inner cylinder; 5. Back-blowing seat; 501. First annular stepped groove; 502. Second annular stepped groove; 503. Back-blowing truncated cone; 6. Spiral conveyor bar. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 The present invention provides a heat radiation double-layer paint stripping roller structure for aluminum recycled cans, comprising:

[0024] The paint stripping outer cylinder 1 has a feeding end seat 2 and a discharging end seat 3 at its two ends. The paint stripping outer cylinder 1 is driven by a motor to rotate between the feeding end seat 2 and the discharging end seat 3. The inner side wall of the paint stripping outer cylinder 1 is provided with equally spaced spiral conveyor strips 6.

[0025] The inner paint stripping cylinder 4 is set inside the outer paint stripping cylinder 1. One end of the inner paint stripping cylinder 4 passes through the feed end seat 2 and is connected to the heat energy conveying pipe. The other end of the inner paint stripping cylinder 4 extends toward the discharge end seat 3 without contacting it.

[0026] The back-blowing seat 5 is located inside the discharge end seat 3 at the position corresponding to the paint stripping inner cylinder 4. The paint stripping inner cylinder 4 and the back-blowing seat 5 are aligned and distributed, and the paint stripping inner cylinder 4 and the back-blowing seat 5 do not contact each other. The lower part of the back-blowing seat 5 has a discharge notch with the discharge end seat 3. The back-blowing seat 5 is provided with a first annular step groove 501 and a second annular step groove 502 that are progressively advanced. A back-blowing frustum 503 is provided at the center of the second annular step groove 502. The back-blowing frustum 503 and the paint stripping inner cylinder 4 are aligned and distributed.

[0027] This utility model includes a paint stripping outer cylinder 1, a paint stripping inner cylinder 4, and a back-blowing seat 5. In use, waste aluminum cans enter the paint stripping outer cylinder 1 through the inlet end seat 2. Driven by a motor, the paint stripping outer cylinder 1 rotates between the inlet end seat 2 and the outlet end seat 3, causing the waste aluminum cans to be spirally conveyed to one end of the outlet end seat 3 via a spiral conveyor 6. During this process, heat energy is transferred into the paint stripping inner cylinder 4 through a heat energy conveying pipe. The paint stripping inner cylinder 4 then uses thermal radiation to thermally devarnish the waste aluminum cans conveyed in the paint stripping outer cylinder 1. The heat energy is then directly blown through the paint stripping inner cylinder 4 to the back-blowing seat 5. Next, the back-blowing disc 503 on the back-blowing seat 5 guides the heat energy to the inner first annular stepped groove 501 and the second annular stepped groove 502, and then through the first annular... The stepped groove 501 and the second annular stepped groove 502 are backflushed between the outer paint stripping cylinder 1 and the inner paint stripping cylinder 4, and move towards the feed end seat 2. The waste aluminum cans conveyed in the outer paint stripping cylinder 1 are thermally devarnished during the backflushing process. Instead of directly using fuel combustion equipment to thermally devarnish the waste aluminum cans, the structure design of the inner paint stripping cylinder 4 and the backflushing seat 5 is adopted to indirectly thermally devarnish the waste aluminum cans through heat radiation and backflushing convection. This effectively reduces the metal loss of waste aluminum cans during the paint stripping process, and the metal recovery rate reaches more than 98%, which greatly improves the metal recovery rate of waste aluminum cans. There is no open flame inside the double-layer paint stripping drum, and low-temperature paint stripping is used. No water mist is generated during the process, which greatly improves the paint stripping efficiency and quality.

[0028] In summary, the method of using the double-layer thermal radiation paint stripping roller structure for aluminum can recycling provided in this embodiment is as follows: During use, waste aluminum cans enter the outer paint stripping cylinder 1 through the inlet end seat 2. The outer paint stripping cylinder 1 is driven by a motor to rotate between the inlet end seat 2 and the outlet end seat 3, causing the waste aluminum cans to be spirally conveyed to one end of the outlet end seat 3 via the spiral conveyor strip 6. During this process, heat energy is transferred into the inner paint stripping cylinder 4 through the heat energy conveying pipe. At this time, the inner paint stripping cylinder 4 radiates heat to the outer paint stripping cylinder 1. The waste aluminum cans conveyed inside undergo thermal devarnishing. Then, the heat energy is directly blown through the inner devarnishing cylinder 4 to the back-blowing seat 5. Next, the back-blowing platform 503 on the back-blowing seat 5 guides the heat energy to the first annular step groove 501 and the second annular step groove 502 on the inner side. Then, it is back-blown through the first annular step groove 501 and the second annular step groove 502 to the space between the outer devarnishing cylinder 1 and the inner devarnishing cylinder 4, and moves towards the feed end seat 2. The waste aluminum cans conveyed inside the outer devarnishing cylinder 1 undergo thermal devarnishing during the back-blowing process.

[0029] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat radiation double-layer paint stripping roller structure for stripping paint from recycled aluminum cans, characterized in that, include, Paint stripping outer cylinder (1), with a feed end seat (2) and a discharge end seat (3) respectively provided at both ends of the paint stripping outer cylinder (1); Paint stripping inner cylinder (4), the paint stripping inner cylinder (4) is disposed inside the paint stripping outer cylinder (1); Backflush seat (5), the backflush seat (5) is located in the discharge end seat (3) at the position corresponding to the paint stripping inner cylinder (4).

2. The heat radiation double-layer paint stripping roller structure for aluminum can recycling according to claim 1, characterized in that: The paint stripping outer cylinder (1) is driven by a motor to rotate between the feed end seat (2) and the discharge end seat (3).

3. The heat radiation double-layer paint stripping roller structure for aluminum can recycling according to claim 1, characterized in that: The inner wall of the paint stripping outer cylinder (1) is provided with equally spaced spiral conveyor strips (6).

4. The heat radiation double-layer paint stripping roller structure for aluminum can recycling according to claim 1, characterized in that: One end of the paint stripping inner cylinder (4) passes through the feed end seat (2) and is connected to the heat energy conveying pipe, while the other end of the paint stripping inner cylinder (4) extends toward the discharge end seat (3) without contacting it.

5. The heat radiation double-layer paint stripping roller structure for aluminum can recycling according to claim 4, characterized in that: The paint stripping inner cylinder (4) and the back-blowing seat (5) are aligned and distributed, and the paint stripping inner cylinder (4) and the back-blowing seat (5) do not contact each other.

6. The heat radiation double-layer paint stripping roller structure for aluminum can recycling according to claim 1, characterized in that: The lower part of the back-blowing seat (5) and the discharge end seat (3) have discharge gaps.

7. The heat radiation double-layer paint stripping roller structure for aluminum can recycling according to claim 6, characterized in that: The back-blowing seat (5) has a first annular step groove (501) and a second annular step groove (502) that are progressively arranged. A back-blowing frustum (503) is provided at the center of the second annular step groove (502). The back-blowing frustum (503) and the paint stripping inner cylinder (4) are aligned and distributed.

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