Iron sorting device for aluminum alloy production
By combining a separation box and vibrating screen with the gradient magnetic field of multiple sets of inclined double-coil electromagnets, the problem of incomplete separation of iron impurities in aluminum alloy waste is solved, achieving efficient separation and high-purity resource recovery, meeting the requirements of high-precision aluminum alloy parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGYUAN MINGKUN NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-19
AI Technical Summary
Existing iron sorting devices do not perform volumetric classification of iron impurities in aluminum alloy waste, resulting in large pieces of metal being mixed with powdered iron and aluminum, which affects the sorting effect and makes it difficult to completely separate them, leading to insufficient purity of recycled aluminum and equipment wear.
Employing a separation box, vibration mechanism, and powder sorting mechanism, the system combines the vibrating sieve of a primary perforated plate with the gradient magnetic field of multiple sets of inclined double-coil electromagnets, along with the coordinated airflow of a blower and an induced draft fan, to achieve preliminary classification of large and small particles and efficient separation of powder, preventing sieve clogging and improving sorting accuracy.
This technology enables efficient separation of iron impurities from aluminum alloy scrap, improves the purity of iron and aluminum powder, reduces equipment wear and clogging, increases resource recovery rate, and ensures that recycled materials meet the requirements of high-precision aluminum alloy components.
Smart Images
Figure CN224253534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum alloy production technology, specifically to an iron sorting device for aluminum alloy production. Background Technology
[0002] In aluminum alloy production processes, waste recycling is a crucial step in reducing costs and ensuring resource reuse. However, existing iron sorting devices do not perform volumetric classification of iron impurities in aluminum alloy waste, resulting in the mixing of large pieces of metal with powdered iron and aluminum.
[0003] This extensive sorting method leads to the following problems: First, large metal particles easily block the magnetic field during magnetic separation, reducing the adsorption efficiency for fine iron powder. Second, aluminum and iron powders, due to their similar density and magnetic properties, are difficult to separate completely, resulting in insufficient purity of recycled aluminum. More seriously, ungraded materials directly entering the magnetic separation stage cause screen blockage, accelerated equipment wear, and the iron powder after sorting has an impurity content as high as 15%-20%, which cannot meet the recycling requirements of high-precision aluminum alloy parts for new energy vehicles and other applications.
[0004] Although some improvement solutions attempt to add multi-stage magnetic separation, they have failed to resolve the underlying technical contradictions caused by volume mixing. When large pieces of metal are mixed with powder, large particles hinder the penetration of the magnetic field, making it difficult for fine iron powder to be effectively adsorbed. At the same time, material accumulation and blockage are easily caused during the vibrating screening process.
[0005] Therefore, we propose an iron sorting device for aluminum alloy production to address the problems mentioned above. Utility Model Content
[0006] This utility model provides an iron sorting device for aluminum alloy production, which can solve the problem that existing iron sorting devices used in aluminum alloy production processes do not perform volumetric classification of iron impurities in aluminum alloy waste, resulting in large pieces of metal being mixed with powdered iron and aluminum, thus affecting the sorting effect.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] An iron sorting device for aluminum alloy production processes includes a separation box, with a feed inlet fixedly connected to the upper end of the separation box. A primary perforated plate is installed inside the separation box, with screen holes evenly distributed inside the primary perforated plate. A vibration mechanism is provided at the top of the separation box to drive the primary perforated plate to vibrate. The primary perforated plate is inclined inside the separation box. A coarse material outlet is provided on the side of the separation box near the lower end of the primary perforated plate. A primary discharge box is fixedly connected to the outside of the coarse material outlet. A fine material drawer is provided at the bottom of the separation box. A powder sorting mechanism is provided between the fine material drawer and the primary perforated plate.
[0009] Preferably, the vibration mechanism includes a connecting rod, one end of which is fixedly connected to the middle of the first-stage orifice plate, and the other end of which is fixedly connected to a spherical hinge. The other end of the spherical hinge is fixedly connected to a sliding rod, which extends through the separation box to the outside of the separation box.
[0010] Preferably, a top plate is fixedly connected to one end of the slide bar outside the separation box, a stepper motor is fixedly installed on the top of the separation box, a cam is fixedly connected to the shaft of the stepper motor, the cam is set perpendicular to the top plate, and the rotation of the cam pushes the top plate to move back and forth.
[0011] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0012] This utility model's sorting device, through innovative design and optimized structure, achieves highly efficient separation of iron impurities in aluminum alloy scrap. The feed inlet ensures smooth feed of the scrap, while the primary perforated plate separates large metal particles through vibration, achieving initial particle grading of the scrap. The vibration mechanism, through the cooperation of a stepper motor and cam, drives the connecting rod and slide rod, enabling the primary perforated plate to vibrate efficiently, effectively filtering large metal particles and preventing screen blockage. The first and second slide plates ensure stable vibration of the perforated plate and prevent powder leakage. The coarse material outlet allows large metal particles to be smoothly discharged, while the primary discharge box collects coarse metal particles, and the fine material drawer collects small particles and powder passing through the screen holes. The powder magnetic separator in the powder sorting mechanism utilizes multiple sets of tilted double-coil electromagnets to generate a gradient magnetic field. Combined with the synergistic airflow of the blower and induced draft fan, it can efficiently separate aluminum powder and iron powder, improving sorting accuracy. The double-coil electromagnets are de-energized once per second, ensuring that iron powder, after adsorption, can smoothly slide into the iron powder collection box, while aluminum powder is retained by the filter cartridge. Large particles in the coarse material drawer can be further separated through secondary manual sorting or magnetic separation, while powder in the fine material drawer directly enters the magnetic separation process, avoiding contamination during transport. Ultimately, this device not only improves the purity of iron and aluminum powder and achieves high-efficiency resource recovery, but also reduces equipment wear and clogging, thereby significantly improving the recycling rate of aluminum alloy waste and ensuring that the recycled materials meet the requirements of high-precision aluminum alloy components. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall external structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the overall internal cross-sectional structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the vibration mechanism structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the upper structure of the separation box of this utility model.
[0017] The components are as follows: 1. Separation box; 2. Feed inlet; 3. Primary perforated plate; 4. Vibration mechanism; 5. First slide plate; 6. Second slide plate; 7. Coarse material outlet; 8. Primary discharge box; 9. Coarse material drawer; 11. Blower; 12. Fine material drawer; 13. Powder magnetic separator; 14. Double coil electromagnet; 15. Iron powder collection box; 16. Exhaust fan; 17. Filter cartridge; 41. Connecting rod; 42. Spherical hinge; 43. Slide rod; 44. Top plate; 45. Stepper motor; 46. Cam. Detailed Implementation
[0018] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.
[0019] Example 1:
[0020] Please see Figure 1-4 This utility model provides a technical solution:
[0021] An iron sorting device for aluminum alloy production processes includes a separation box 1. A feed inlet 2 is fixedly connected to the upper end of the separation box 1. A primary perforated plate 3 is installed inside the separation box 1. Screen holes are evenly opened inside the primary perforated plate 3. A vibration mechanism 4 is provided on the upper part of the separation box 1 to drive the primary perforated plate 3 to vibrate. The primary perforated plate 3 is inclined inside the separation box 1. A coarse material outlet 7 is opened on the side of the separation box 1 near the lower end of the primary perforated plate 3. A primary discharge box 8 is fixedly connected to the outside of the coarse material outlet 7. A fine material drawer 12 is provided at the bottom of the separation box 1. A powder sorting mechanism is provided between the fine material drawer 12 and the primary perforated plate 3.
[0022] The vibration mechanism 4 includes a connecting rod 41. One end of the connecting rod 41 is fixedly connected to the middle of the primary orifice plate 3, and the other end of the connecting rod 41 is fixedly connected to a spherical hinge 42. The other end of the spherical hinge 42 is fixedly connected to a slide rod 43, which extends through the separation box 1 to the outside of the separation box 1. A top plate 44 is fixedly connected to the end of the slide rod 43 located outside the separation box 1. A stepper motor 45 is fixedly installed on the top of the separation box 1. A cam 46 is fixedly connected to the shaft of the stepper motor 45. The cam 46 is perpendicular to the top plate 44, and its rotation pushes the top plate 44 to reciprocate. A second sliding plate 6 is fixedly connected to the end of the primary orifice plate 3 near the coarse material outlet 7, and a first sliding plate 5 is fixedly connected to the end of the primary orifice plate 3 away from the coarse material outlet 7. A coarse material drawer 9 is slidably connected inside the primary discharge box 8. The coarse material drawer 9 is located below the coarse material outlet 7, and a handle is provided on the outside of the coarse material drawer 9. The guide port 2 is bucket-shaped, and the upper opening section of the guide port 2 is larger than the bottom section.
[0023] The device drives the cam 46 to rotate via the stepper motor 45, which in turn pushes the top plate 44, which is fixed to the slide rod 43, to reciprocate horizontally. The slide rod 43 is connected to the connecting rod 41 in the middle of the first-stage orifice plate 3 via the spherical hinge 42, which converts the horizontal motion into the up-and-down vibration of the first-stage orifice plate 3. The spherical hinge 42 allows the slide rod 43 and the connecting rod 41 to deflect at a certain angle, preventing the slide rod 43 from being rigidly connected to the first-stage orifice plate 3, which would cause stress to be generated during the vibration of the first-stage orifice plate 3, resulting in the breakage between the slide rod 43 and the connecting rod 41.
[0024] A spring sleeve is fitted outside the slide bar 43 to provide a restoring force during the return stroke of the cam 46, ensuring smooth vibration and preventing screen blockage. After the aluminum alloy scrap falls from the bucket-shaped feed inlet 2 into the vibrating inclined primary perforated plate 3, large iron and aluminum blocks, due to their size being larger than the screen holes, slide down the primary perforated plate 3 under the action of vibration, pass through the guide coarse material outlet 7, and fall into the coarse material drawer 9, while small particles and powder fall through the screen holes into the lower fine material drawer 12, completing the first volume classification and effectively separating large-volume metals from fine particles.
[0025] The first slide plate 5 and the second slide plate 6 are connected to the first-stage orifice plate 3, and the first slide plate 5 and the second slide plate 6 are slidably connected to the inner wall of the separation box 1, thereby preventing the first-stage orifice plate 3 from tilting to the side and ensuring the stability of the first-stage orifice plate 3's vertical vibration. At the same time, the second slide plate 6 forms a shield on the lower end of the first-stage orifice plate 3 to prevent small particles and powder from leaking to the coarse material outlet 7 after passing through the first-stage orifice plate 3, thus ensuring the stable screening effect.
[0026] Example 2:
[0027] A spring is fixedly connected between the top plate 44 and the upper surface of the separation box 1, and the spring is sleeved on the outside of the slide rod 43.
[0028] The powder sorting mechanism includes a powder magnetic separator 13, which is located below the coarse material drawer 9. One side of the powder magnetic separator 13 is fixedly connected to the interior of the separation box 1, and the other side of the powder magnetic separator 13 is fixedly connected to an induced draft fan 16. The end of the induced draft fan 16 away from the powder magnetic separator 13 is fixedly connected to a filter cartridge 17.
[0029] A blower 11 is installed on the side of the separation box 1 away from the powder magnetic separator 13, and an iron powder collection box 15 is set below the double coil electromagnet 14.
[0030] The powder magnetic separator 13 is equipped with multiple sets of double-coil electromagnets 14. Each set of double-coil electromagnets 14 is arranged in a longitudinal linear pattern and is inclined inside the powder magnetic separator 13.
[0031] Inside the powder magnetic separator 13, multiple sets of double-coil electromagnets 14 are arranged longitudinally in a linear fashion, with each set installed at an angle of 30° to 45° to extend the path of the powder. When a pulse current is passed through the double-coil electromagnets 14, a gradient magnetic field is formed. Iron powder is attracted to the surface by magnetic force, while aluminum powder continues to fall because it is non-magnetic.
[0032] Meanwhile, the blower 11 horizontally blows air from the side wall of the separation box 1 into the magnetic separator, and the induced draft fan 16 generates negative pressure at the other end, forming a synergistic effect of horizontal airflow and negative pressure attraction: aluminum powder is carried by the airflow through the magnetic field area into the filter cartridge 17, while iron powder is retained due to magnetic adsorption; the double coil electromagnet 14 is periodically de-energized, and the adsorbed iron powder slides along the inclined surface into the iron powder collection box, while the aluminum powder is intercepted in the filter cartridge 17 and recovered with high purity. The separation efficiency of ultrafine powder is significantly improved by the magnetic-pneumatic separation technology.
[0033] Large particles in coarse material drawer 9 can be further separated to remove residual iron through secondary manual sorting or external magnetic separation; fine material drawer 12 is directly connected to the magnetic separator, allowing powder to directly enter the magnetic separation process and avoiding contamination during transport. After aluminum powder and iron powder are collected in filter cartridge 17 and packaged in separate collection boxes, the aluminum powder has a purity of over 95% and the iron powder has an impurity rate of less than 3%. Both can be directly reused in the smelting process, forming a closed-loop resource system.
[0034] Working principle of an iron sorting device used in aluminum alloy production process:
[0035] First, aluminum alloy scrap enters the separation box 1 through the bucket-shaped feed inlet 2. The inclined primary perforated plate 3 vibrates at high frequency under the drive of the vibration mechanism 4. The vibration mechanism 4 is driven by a stepper motor 45 to rotate the cam 46, which pushes the top plate 44 connected to the slide rod 43 to move horizontally back and forth. The horizontal motion is converted into the up and down vibration of the perforated plate through the ball hinge 42. The spring sleeve on the outside of the slide rod 43 provides a restoring force when the cam 46 returns, ensuring smooth vibration. Large metal particles slide down the primary perforated plate 3, are guided by the second slide plate 6 to the coarse material outlet 7 and fall into the coarse material drawer 9; small particles and powder fall into the fine material drawer 12 through the sieve holes, completing the first volume classification; the first slide plate 5 and the second slide plate 6 are slidably connected to limit the lateral displacement of the perforated plate and prevent powder from leaking into the coarse material area.
[0036] Aluminum and iron powder in the fine material drawer 12 enters the powder magnetic separator 13. Multiple sets of double-coil electromagnets 14 are arranged longitudinally at an angle of 30°–45°, and a gradient magnetic field is formed by passing a pulsed current through them. Iron powder is attracted to the surface of the electromagnets by magnetic force. The horizontal airflow generated by the blower 11 and the negative pressure of the induced draft fan 16 work together to push the non-magnetic aluminum powder through the magnetic field into the filter cartridge 17. The electromagnets are de-energized every 12 seconds, and the attracted iron powder slides down the inclined surface into the iron powder collection box, while the aluminum powder is retained in the filter cartridge 17.
[0037] After secondary magnetic separation or manual sorting, the large particles in coarse material drawer 9 achieve an iron block separation rate of >99%. The materials packaged in filter cartridge 17 and iron powder collection box can be directly fed into the smelting furnace, increasing the aluminum powder recycling rate to over 97% and the iron powder recovery efficiency to 98.5%.
[0038] This solution, through an innovative structural combination, upgrades traditional magnetic separation into a system that integrates screening, gas separation, and magnetic separation, completely solving the core technical challenges of incomplete separation of iron impurities and low resource recovery rate in aluminum alloy waste.
[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. An iron sorting device for aluminum alloy production, characterized in that, The system includes a separation box (1), with a feed inlet (2) fixedly connected to the upper end of the separation box (1). A primary perforated plate (3) is installed inside the separation box (1), and sieve holes are evenly opened inside the primary perforated plate (3). A vibration mechanism (4) is provided on the upper part of the separation box (1) to drive the primary perforated plate (3) to vibrate. The primary perforated plate (3) is inclined inside the separation box (1). A coarse material outlet (7) is opened on the side of the separation box (1) near the lower end of the primary perforated plate (3). A primary discharge box (8) is fixedly connected to the outside of the coarse material outlet (7). A fine material drawer (12) is provided at the bottom of the separation box (1). A powder sorting mechanism is provided between the fine material drawer (12) and the primary perforated plate (3).
2. The iron sorting device according to claim 1, characterized in that, The vibration mechanism (4) includes a connecting rod (41), one end of which is fixedly connected to the middle of the first-stage orifice plate (3), and the other end of which is fixedly connected to a spherical hinge (42). The other end of the spherical hinge (42) is fixedly connected to a slide rod (43), which extends through the separation box (1) to the outside of the separation box (1).
3. The iron sorting device according to claim 2, characterized in that, A top plate (44) is fixedly connected to one end of the slide bar (43) located outside the separation box (1). A stepper motor (45) is fixedly installed on the top of the separation box (1). A cam (46) is fixedly connected to the shaft of the stepper motor (45). The cam (46) is set perpendicular to the top plate (44). The rotation of the cam (46) pushes the top plate (44) to move back and forth.
4. The iron sorting device according to claim 1, characterized in that, A second sliding plate (6) is fixedly connected to one end of the first-stage orifice plate (3) near the coarse material outlet (7), and a first sliding plate (5) is fixedly connected to one end of the first-stage orifice plate (3) away from the coarse material outlet (7).
5. The iron sorting device according to claim 3, characterized in that, The primary discharge box (8) is slidably connected to a coarse material drawer (9), which is located below the coarse material outlet (7). A handle is provided on the outside of the coarse material drawer (9).
6. The iron sorting device according to claim 1, characterized in that, The feed inlet (2) is bucket-shaped, and the upper opening section of the feed inlet (2) is larger than the bottom section.
7. The iron sorting device according to claim 1, characterized in that, A spring is fixedly connected between the top plate (44) and the upper surface of the separation box (1), and the spring is sleeved on the outside of the slide rod (43).
8. The iron sorting device according to claim 1, characterized in that, The powder sorting mechanism includes a powder magnetic separator (13), which is located below the coarse material drawer (9). One side of the powder magnetic separator (13) is fixedly connected to the interior of the separation box (1), and the other side of the powder magnetic separator (13) is fixedly connected to an induced draft fan (16). The end of the induced draft fan (16) away from the powder magnetic separator (13) is fixedly connected to a filter cartridge (17).
9. The iron sorting device according to claim 1, characterized in that, A blower (11) is installed on the side of the separation box (1) away from the powder magnetic separator (13), and an iron powder collection box (15) is set below the double coil electromagnet (14).
10. The iron sorting device according to claim 1, characterized in that, The powder magnetic separator (13) is equipped with multiple sets of double-coil electromagnets (14). Each set of double-coil electromagnets (14) is arranged linearly in the longitudinal direction and is inclined inside the powder magnetic separator (13).