A scrap aluminum sorting device and smelting device

Abstract

The invention discloses a scrap aluminum sorting device and a smelting device, the sorting device comprises a crushing box, a conveyor belt and a debris removal device for crushing the scrap aluminum, the debris removal device comprises a guide slide bar arranged in parallel along the length direction of the conveyor belt, a gantry is slidably connected to the guide slide bar, a push-pull plate is installed on the front side of the gantry, a vertical long hole is opened on the push-pull plate, a limiting protrusion is fixed on the front surface of the conveyor belt, the limiting protrusion is inserted into the interior of the push-pull plate, an electromagnetic suction cup is installed at a position corresponding to the conveyor belt above the interior of the gantry; a limiting protrusion is arranged on the conveyor belt, the limiting protrusion can push and pull the gantry, so that the electromagnetic suction cup on the gantry can reciprocate above the conveyor belt, and then the electromagnetic suction cup can remove scrap iron in the crushed aluminum, and the gantry with reciprocating motion saves more floor space and makes the device more lightweight compared to setting a magnetic separation conveyor belt alone.

Description

Technical Field

[0001] The present invention relates to the technical field of waste aluminum recovery, and in particular to a waste aluminum sorting device and a smelting device. Background Art

[0002] Scrap aluminum is an important resource. Recycling it is a very beneficial task. It can not only make effective use of resources, but also protect the environment. Therefore, governments of various countries attach great importance to this work. In the smelting of scrap aluminum, it is necessary to first crush it, then magnetic separation, and finally melt smelting.

[0003] There are generally two magnetic separation methods available in the prior art:

[0004] 1. Drum magnetic separator, that is, magnets are set on the outer surface of the drum, and the scrap aluminum passes through the drum. As the drum rotates, the scrap iron in the scrap aluminum can be sucked away. The disadvantage of this method is that the contact area between the drum and the scrap aluminum is limited. When the amount of scrap aluminum passing through the drum is large, the magnet on the drum cannot suck away the scrap iron, resulting in a high content of aluminum impurities;

[0005] 2. Conveyor belt magnetic separator, that is, after the scrap aluminum is crushed, a feeding conveyor belt is used to transport the scrap aluminum to the required position, and a magnetic separation conveyor belt is set above the scrap aluminum conveyor belt. The outer surface of this magnetic separation conveyor belt has magnetic components, which can contact the surface of the scrap aluminum conveyor belt over a large area to remove iron. However, its overall length is large, and the length that needs to be set is longer than that of the scrap aluminum conveyor belt, which occupies a larger space and also makes the equipment bulky. Summary of the invention

[0006] On one hand, the present invention provides a sorting device for scrap aluminum to solve the problems of incomplete iron removal and large occupied area proposed in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: it includes a crushing box for crushing scrap aluminum, a conveyor belt located below the crushing box, and a debris removal device, characterized in that: the debris removal device includes a guide slide bar arranged in parallel along the length direction of the front and rear sides of the conveyor belt, a gantry is slidably connected to the guide slide bar, a push-pull plate is installed on the front side of the gantry, a vertical long hole is opened on the push-pull plate, a limiting protrusion is fixed on the front surface of the conveyor belt, the limiting protrusion is inserted into the interior of the push-pull plate, an electromagnetic suction cup is installed at a position corresponding to the conveyor belt on the upper interior of the gantry, and a driving mechanism that can drive the electromagnetic suction cup to rotate is provided inside the gantry.

[0008] Furthermore, side support plates are fixed below the front and rear sides of the crushing box, and a crushing body is installed inside the crushing box. The crushing body includes squeezing rollers rotatably installed side by side above the inside of the crushing box, and crushing rollers are rotatably installed side by side in the middle of the crushing box, and a lower hopper is provided below the crushing box, and a rotating assembly for driving the squeezing rollers and the crushing rollers to rotate is installed at the rear of the crushing box.

[0009] Furthermore, the rotating assembly includes an upper gear fixed to the rear ends of the central shafts of the two squeezing rollers, a lower gear fixed to the rear ends of the two crushing rollers, and a chain transmission structure that transmits transmission between one of the upper gears and the lower gear. A motor for driving one of the squeezing rollers to rotate is installed at the rear of the crushing box.

[0010] Furthermore, a support platform is provided between the upper and lower layers of the conveyor belt, and the rear side of the support platform extends to the rear ends of the conveyor belt. Transmission rollers are provided at both ends inside the conveyor belt. The rear ends of the transmission rollers are rotatably installed inside the support platform through bearings. A motor for driving one of the transmission rollers to rotate is installed at one end inside the support platform.

[0011] Furthermore, the driving mechanism includes: an inner gear ring is fixed at a position corresponding to the conveyor belt on the upper part of the gantry, a sun gear is provided in the middle of the inner gear ring, at least two planetary gears are evenly meshed between the sun gear and the inner gear ring, a connecting shaft is fixed to the middle of the lower end of the planetary gear, the electromagnetic suction cup is installed on the lower surface of the connecting shaft, and tipping rods are fixed on both sides below the electromagnetic suction cup, and a universal wheel is installed at the lower end of the tipping rod.

[0012] Furthermore, an inverted V-shaped top is fixed to the upper surface of the gantry, a motor is fixed inside the inverted V-shaped top, a power output end of the motor is fixed to the sun gear, a bracket is provided on the upper inside of the inner gear ring, the upper end of the central axis of the planetary gear is rotatably mounted in the bracket through a bearing, sliders are installed on both sides of the bracket, and a groove ring cooperating with the slider is provided on the inner wall of the inner gear ring.

[0013] Furthermore, an air inlet hole is provided on the lower surface of the inverted V-shaped top, and a negative pressure pipe is fixed to one end of the gantry, and a negative pressure fan is installed at the other end of the negative pressure pipe.

[0014] Furthermore, it also includes a controller, guide slides are fixed on the front and rear sides of the gantry, the guide slide rod passes through the guide slide rod, and support columns are provided at both ends of the guide slide rod, a light source is installed on the limiting protrusion, a photoresistor is fixed on the front surface of the transmission roller close to the crushing box side, the output end of the photoresistor is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input end of the electromagnetic suction cup.

[0015] Furthermore, a roller is provided on the inner wall of the long hole.

[0016] The present application also provides a smelting device for scrap aluminum, including the sorting device described in the present application, and also including an inclined feeding auger and a smelting furnace; the feeding auger is arranged below the end of the conveyor belt away from the crushing box, and a feeding hopper is installed on the upper surface of the lower end of the feeding auger, and the smelting furnace is arranged on one side of the upper end of the feeding auger.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a limiting protrusion on the conveyor belt, which can push and pull the gantry, so that the electromagnetic suction cup on the gantry can reciprocate above the conveyor belt, and then the electromagnetic suction cup can remove the scrap iron in the broken aluminum. The reciprocating gantry saves more floor space and makes the device more portable compared to the single magnetic separation conveyor belt.

[0019] 2. The electromagnetic chuck of the present invention can rotate and revolve. When it revolves, it can absorb the magnet over a large area. When it rotates, it can drive the flipping rod below to rotate, and then the flipping rod can flip the broken aluminum to avoid incomplete removal of scrap iron.

[0020] 3. The present invention is provided with a light source and a photoresistor. When the limit protrusion pushes the electromagnetic chuck to the left side of the conveyor belt, the photoresistor receives the signal from the light source and transmits the signal to the controller, so that the controller controls the electromagnetic chuck to be powered off. At this time, the electromagnetic chuck loses its attraction to the magnet, and the electromagnet adsorbed thereon can be unloaded downward due to its own weight to reach the left end space of the conveyor belt, so that the electromagnet can perform continuous magnetic separation operation;

[0021] 4. The present invention is provided with a negative pressure fan, which can draw air through the air inlet holes on the gantry, so that the dust and impurities in the crushed aluminum can be drawn away together, ensuring the clean state of the aluminum. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall diagram of a scrap aluminum smelting device of the present invention;

[0023] Figure 2 This is a connection diagram of a conveyor belt and a gantry frame of a scrap aluminum smelting device of the present invention;

[0024] Figure 3 The structure of the crushing body in the scrap aluminum smelting device of the present invention is suitable for:

[0025] Figure 4 This is a driving diagram of a crushing body in a scrap aluminum smelting device of the present invention;

[0026] Figure 5In a smelting device for scrap aluminum of the present invention Figure 2 A magnified image of area A;

[0027] Figure 6 It is a structural schematic diagram of a gantry in a scrap aluminum smelting device of the present invention from a first-view perspective;

[0028] Figure 7 It is a schematic structural diagram of the bottom view of an inverted V-shaped top in a scrap aluminum smelting device of the present invention;

[0029] Figure 8 It is a structural schematic diagram of a gantry in a scrap aluminum smelting device of the present invention from a second viewing angle;

[0030] Fig. 9 It is a schematic diagram of the installation of an electromagnetic chuck in a scrap aluminum smelting device of the present invention;

[0031] Fig.10 This is a schematic diagram of the position of the planetary gear in a scrap aluminum smelting device of the present invention;

[0032] Fig.11 The present invention is a schematic diagram of the installation of a material turning rod in a scrap aluminum smelting device.

[0033] In the figure: 1. Crushing box; 2. Crushing body; 201. Squeezing roller; 202. Crushing roller; 203. Lower hopper; 204. Upper gear; 205. Lower gear; 206. Chain transmission structure; 3. Side support plate; 4. Conveyor belt; 41. Transmission roller; 5. Support platform; 6. Guide slide bar; 7. Support column; 8. Feeding auger; 81. Upper hopper; 9. Smelting furnace; 10. Negative pressure fan; 11. Negative pressure pipe; 12. Gantry; 121. Inverted V-shaped top; 122. Air inlet; 13. Push-pull plate; 14. Long hole; 15. Limiting protrusion; 16. Guide slide plate; 17. Internal gear ring; 171. Groove ring; 18. Motor; 19. Bracket; 20. Slider; 21. Electromagnetic suction cup; 22. Turning rod; 23. Universal wheel; 24. Connecting shaft; 25. Photoresistor; 26. Light source; 27. Sun gear; 28. Planetary gear. DETAILED DESCRIPTION

[0034] 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 implementation regulations described 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.

[0035] Example 1

[0036] See also Figure 1 and Figure 2As shown, the present invention provides a technical solution for a waste aluminum sorting device: a waste aluminum sorting device, comprising a conveyor belt 4, a support platform 5 is provided between the upper and lower layers of the conveyor belt 4, and the rear side of the support platform 5 extends to the rear ends of the conveyor belt 4, and transmission rollers 41 are provided at both ends of the interior of the conveyor belt 4, and the rear ends of the transmission rollers 41 are rotatably installed in the interior of the support platform 5 through bearings, and a motor for driving one of the transmission rollers 41 to rotate is installed at one end of the interior of the support platform 5, so that the entire conveyor belt 4 can be operated with the help of the power of the motor, and the support platform 5 here can support the middle part of the conveyor belt 4 to prevent the upper surface of the conveyor belt 4 from falling downward due to the pressure of aluminum;

[0037] Combination Figure 1 and Figure 2 As shown, a crushing box 1 for crushing scrap aluminum is provided above one end of the conveyor belt 4, and side support plates 3 are fixed below the front and rear sides of the crushing box 1, and the side support plates 3 can support the crushing box 1 to a required height, and a crushing body 2 is installed inside the crushing box 1, and the crushing body 2 includes squeezing rollers 201 rotatably installed side by side above the inside of the crushing box 1, and side-by-side crushing rollers 202 are rotatably installed in the middle of the crushing box 1, and a lower hopper 203 is provided below the crushing box 1, and then when the two squeezing rollers 201 rotate relatively, the loose scrap aluminum can be aggregated first, and then the aggregated scrap aluminum can reach between the two crushing rollers 202 for crushing, and the crushed scrap aluminum can be discharged downward through the lower hopper 203;

[0038] Combination Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, in order to realize the relative rotation of the two crushing rollers 202 and the relative rotation of the two squeezing rollers 201, a rotating assembly for driving the squeezing rollers 201 and the crushing rollers 202 to rotate is installed at the rear of the crushing box 1. Preferably, the rotating assembly includes an upper gear 204 fixed to the rear end of the middle shaft of the two squeezing rollers 201, a lower gear 205 fixed to the rear end of the two crushing rollers 202, and a chain transmission structure 206 that transmits and connects one of the upper gears 204 and the lower gear 205. The crushing box 1 is installed at the rear of the crushing box 1. A motor for rotating a squeezing roller 201, which is not shown in the figure, is used to drive the squeezing roller 201 to rotate when working. Due to the action of the upper gear 204 between the two squeezing rollers 201, the two squeezing rollers 201 can rotate relative to each other. Similarly, since the two crushing rollers 202 are connected by two meshing lower gears 205, the two crushing rollers 202 can also generate relative motion, and the chain transmission structure 206 can make the upper and lower crushing rollers 202 and the squeezing roller 201 rotate together, thereby reducing the setting of power equipment;

[0039] Combination Figure 2 , Figure 6 , Figure 8 and Fig. 9 As shown, parallel guide slide bars 6 are provided along the length direction on the front and rear sides of the conveyor belt 4, and guide slide plates 16 are fixed on the front and rear sides of the gantry 12, the guide slide bars 6 pass through the guide slide bars 16, and support columns 7 are provided at both ends of the guide slide bars 6, and the gantry 12 is slidably connected to the guide slide bars 6, and when the guide slide bars 16 slide on the guide slide bars 6, the gantry 12 can be driven to slide, and an electromagnetic suction cup 21 is installed at a position corresponding to the conveyor belt 4 above the interior of the gantry 12, and a driving mechanism capable of driving the electromagnetic suction cup 21 to rotate is provided inside the gantry 12, and when the gantry 12 slides, the electromagnetic suction cup 21 can be driven to reciprocate left and right along the upper surface of the conveyor belt 4, when it moves to the left, the electromagnetic suction cup 21 is turned on to process the iron impurities in the broken aluminum on the upper surface of the conveyor belt 4, and when it moves to the right, the electromagnetic suction cup 21 is closed, and no impurity removal operation is performed;

[0040] Combination Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, in order to realize the reciprocating motion of the guide slide plate 16 along the guide slide bar 6, a push-pull plate 13 is installed on the front side of the gantry 12, and a vertical long hole 14 is opened on the push-pull plate 13. A limiting protrusion 15 is fixed on the front surface of the conveyor belt 4, and the limiting protrusion 15 is inserted into the long hole 14 on the push-pull plate 13. Then, when the conveyor belt 4 rotates, the limiting protrusion 15 can be driven to move, and the limiting protrusion 15 can push the push-pull plate 13 to move. The working process is as follows: when the limiting protrusion 15 is at the lower layer of the conveyor belt 4, the limiting protrusion 15 can push the push-pull plate 13 and the gantry 12 to the left, and when the limiting protrusion 15 runs to the conveyor belt 4 When the limiting protrusion 15 is at the left end of the conveyor belt 4, due to the curvature of the conveyor belt 4, the limiting protrusion 15 can be displaced upward in the long hole 14 (a roller is provided on the inner wall of the long hole 14, and the roller can reduce the wear between the limiting protrusion 15 and the inner wall of the long hole 14 and avoid the machine jamming phenomenon) to compensate for the position of the limiting protrusion 15 in the vertical direction. When the limiting protrusion 15 is on the upper layer of the conveyor belt 4, the limiting protrusion 15 can push the push-pull plate 13 and the gantry 12 to the right. When the limiting protrusion 15 runs to the right end of the conveyor belt 4, due to the curvature of the conveyor belt 4, the limiting protrusion 15 can be displaced downward in the long hole 14 to compensate for the position of the limiting protrusion 15 in the vertical direction.

[0041] Reference Figure 2 and Figure 5As shown, in order to achieve that the electromagnetic suction cup 21 can discharge the magnetic impurities adsorbed by itself when the gantry 12 reaches the leftmost side of the conveyor belt 4, the device also includes a controller, a light source 26 is installed on the limiting protrusion 15 located in the long hole 14, and a photoresistor 25 is fixed to the front surface of the driving roller 41 close to the crushing box 1. The output end of the photoresistor 25 is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input end of the electromagnetic suction cup 21, that is, when the limiting protrusion 15 runs to the left side of the conveyor belt 4, the photoresistor 25 receives the signal of the light source 26 and transmits the signal to the controller, so that the controller controls the electromagnetic suction cup 21 to cut off the power. At this time, the electromagnetic suction cup 21 loses its attraction to the magnet, and the electromagnet adsorbed thereon can be discharged downward due to its own weight to reach the left end space of the conveyor belt 4; the electromagnetic suction cup 21 can also be powered off by setting a proximity switch on the front surface of the driving roller 41 close to the crushing box 1.

[0042] Combination Fig. 9 , Fig.10 and Fig.11 As shown, in this embodiment, in order to realize the rotation of the electromagnetic suction cup 21 to better absorb the scrap iron, the driving mechanism here includes: an inner gear ring 17 is fixed at the upper position of the gantry 12 corresponding to the conveyor belt 4, a sun gear 27 is provided in the middle of the inner gear ring 17, and three planetary gears 28 are evenly meshed between the sun gear 27 and the inner gear ring 17. When the sun gear 27 rotates, the planetary gears 28 can rotate while revolving along the sun gear 27, and a connecting shaft 24 is fixed in the middle of the lower end of the planetary gear 28, and the electromagnetic suction cup 21 is installed on the lower surface of the connecting shaft 24, so as to realize the electromagnetic suction cup 21. The suction cup 21 revolves while rotating, and its revolution can increase the area of ​​scrap iron adsorbed to avoid leakage. Flipping rods 22 are fixed on both sides below the electromagnetic suction cup 21, and universal wheels 23 are installed at the lower end of the flipping rods 22, that is, the rotation of the electromagnetic suction cup 21 can drive the flipping rods 22 to revolve. When the flipping rods 22 revolve, the scrap aluminum on the upper surface of the conveyor belt 4 can be flipped to avoid the scrap iron being located below the scrap aluminum and causing incomplete iron removal. The universal wheels 23 can move on the conveyor belt 4 with the rotation of the flipping rods 22 to ensure the stability of the flipping rods 22 and the electromagnetic suction cup 21.

[0043] Preferably, an inverted V-shaped top 121 is fixed on the upper surface of the gantry 12, and when the gantry 12 reaches the bottom of the crushing box 1, the broken aluminum falling from the crushing box 1 can run down along the inverted V-shaped top 121 to the upper surface of the conveyor belt 4, and a motor 18 is fixed inside the inverted V-shaped top 121, and the power output end of the motor 18 is fixed to the sun gear 27, so that the motor 18 can drive the sun gear 27 to rotate, and in order to achieve the stable revolution and rotation of the planetary gear 28, the inner upper part of the inner gear ring 17 is provided with a plurality of motors 18, and the motor 18 ... A bracket 19 is provided, and the upper end of the central axis of the planetary gear 28 is rotatably installed in the bracket 19 through a bearing, that is, the planetary gear 28 rotates inside the bracket 19, and the revolution of the planetary gear 28 can make the bracket 19 rotate. In order to achieve stable rotation of the bracket 19, sliders 20 are installed on both sides of the bracket 19, and a groove ring 171 cooperating with the slider 20 is opened on the inner wall of the inner gear ring 17, and then the slider 20 slides inside the groove ring 171 to guide the rotation of the bracket 19, thereby ensuring its stable rotation;

[0044] Combination Figure 1 , Figure 2 and Figure 7 As shown, in this embodiment, the scrap aluminum also needs to remove dust and impurities. Preferably, an air inlet hole 122 is opened on the lower surface of the inverted V-shaped top 121, and a negative pressure pipe 11 is fixed to one end of the gantry 12, and a negative pressure fan 10 is installed at the other end of the negative pressure pipe 11. That is, when the negative pressure fan 10 is working, air can be sucked through the negative pressure pipe 11 and the air inlet hole 122, so that the dust in the scrap aluminum is sucked away together with the air.

[0045] Example 2

[0046] A scrap aluminum smelting device is provided on the basis of Example 1. An upwardly inclined feeding auger 8 is provided below one end of the conveyor belt 4 away from the crushing box 1. A feeding hopper 81 is installed on the upper surface of the lower end of the feeding auger 8, so that the broken aluminum removed from the scrap iron can reach the inside of the feeding auger 8 through the feeding hopper 81, and a smelting furnace 9 is provided at the other end of the feeding auger 8. The broken aluminum entering the inside of the feeding auger 8 can be transported to the inside of the smelting furnace 9 for scrap aluminum smelting operations.

[0047] Working principle of the present invention: When the device is used, the motor is working, and the rotational power of the motor drives the squeezing roller 201 to rotate. Due to the action of the upper gear 204 between the two squeezing rollers 201, the two squeezing rollers 201 can rotate relative to each other. Similarly, since the two crushing rollers 202 are connected by two meshing lower gears 205, the two crushing rollers 202 can also produce relative motion, and the chain transmission structure 206 can make the upper and lower crushing rollers 202 and the squeezing roller 201 rotate together. When the two squeezing rollers 201 rotate relative to each other, the loose waste aluminum can be aggregated first, and then the aggregated waste aluminum can reach between the two crushing rollers 202 for The scrap aluminum after being bitten can be discharged downward through the discharge hopper 203. The discharged scrap aluminum reaches the upper surface of the conveyor belt 4 and is opened for scrap iron removal. The entire conveyor belt 4 can be operated with the help of the power of the motor, and the support platform 5 here can support the middle part of the conveyor belt 4 to prevent the upper surface of the conveyor belt 4 from falling downward due to the pressure of aluminum. When the conveyor belt 4 is running, the scrap aluminum is transported to the right. When the limiting protrusion 15 is at the lower layer of the conveyor belt 4, the limiting protrusion 15 can push the push-pull plate 13 and the gantry 12 to the left, so that the gantry 12 can move from right to left, and the motor 18 can drive the sun gear 27 to rotate, so that the planetary gear 28 can revolve while rotating. (In order to achieve stable revolution and rotation of the planetary gear 28, a bracket 19 is provided on the upper part of the inner gear ring 17, and the upper end of the central axis of the planetary gear 28 is rotatably installed in the bracket 19 through a bearing, that is, the planetary gear 28 rotates inside the bracket 19, and the revolution of the planetary gear 28 can cause the bracket 19 to rotate. In order to achieve stable rotation of the bracket 19, sliders 20 are installed on both sides of the bracket 19, and a groove ring 171 cooperating with the slider 20 is opened on the inner wall of the inner gear ring 17, and then the slider 20 slides inside the groove ring 171 to guide the rotation of the bracket 19 and ensure its stable rotation), and finally the electromagnetic chuck 21 is achieved to rotate and rotate at the same time. The electromagnetic suction cup 21 rotates, and its revolution can increase the area of ​​the scrap iron adsorbed to avoid the phenomenon of leakage. At the same time, the self-rotation of the electromagnetic suction cup 21 can drive the flipping rod 22 to rotate. When the flipping rod 22 rotates, the scrap aluminum on the upper surface of the conveyor belt 4 can be flipped to avoid the scrap iron being located under the scrap aluminum and causing incomplete iron removal. The universal wheel 23 can move on the conveyor belt 4 with the rotation of the flipping rod 22 to ensure the stability of the flipping rod 22 and the electromagnetic suction cup 21. At the same time, the scrap aluminum also needs to be free of dust and impurities. When the negative pressure fan 10 is working, air can be sucked through the negative pressure pipe 11 and the air inlet 122, so that the dust in the scrap aluminum is sucked away together with the air.

[0048] When the limiting protrusion 15 runs to the left end of the conveyor belt 4, due to the curvature of the conveyor belt 4, the limiting protrusion 15 can be displaced upward inside the long hole 14 to compensate for the position of the limiting protrusion 15 in the vertical direction, and the photoresistor 25 at this time receives the signal of the light source 26, and transmits the signal to the controller, so that the controller controls the electromagnetic suction cup 21 to cut off the power (the motor 18 and the negative pressure fan 10 can also be turned off). At this time, the electromagnetic suction cup 21 loses its attraction to the magnet, and the electromagnet adsorbed thereon can be discharged downward due to its own weight to reach the left end space of the conveyor belt 4. As the limiting protrusion 15 is on the upper layer of the conveyor belt 4, the limiting protrusion 15 can push the push-pull plate 13 and the gantry 12 to the right. When the limiting protrusion 15 runs to the right end of the conveyor belt 4, due to the curvature of the conveyor belt 4, the limiting protrusion 15 can be displaced downward in the long hole 14 to compensate for the position of the limiting protrusion 15 in the vertical direction, and then the limiting protrusion 15 moves to the lower layer of the conveyor belt 4 to perform the next cycle of operations;

[0049] The broken aluminum removed from the scrap iron can reach the interior of the loading auger 8 through the loading hopper 81, and a smelting furnace 9 is provided at the other end of the loading auger 8. The broken aluminum entering the loading auger 8 can be transported to the interior of the smelting furnace 9 for scrap aluminum smelting operations.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A scrap aluminum sorting device, comprising a crushing box (1) for crushing scrap aluminum, a conveyor belt (4) located below the crushing box (1), and a debris removal device, characterized in that: The impurity removal device comprises a guide slide bar (6) arranged in parallel along the longitudinal direction of the front and rear sides of the conveyor belt (4); a gantry (12) is slidably connected to the guide slide bar (6); a push-pull plate (13) is installed on the front side of the gantry (12); a vertical long hole (14) is opened on the push-pull plate (13); a limiting protrusion (15) is fixed on the front surface of the conveyor belt (4); the limiting protrusion (15) is inserted into the long hole 14 on the push-pull plate (13); an electromagnetic suction cup (21) is installed at a position corresponding to the conveyor belt (4) above the interior of the gantry (12); and a driving mechanism capable of driving the electromagnetic suction cup (21) to rotate is provided inside the gantry (12); the electromagnetic suction cup (21) can reciprocate above the conveyor belt (4); when the gantry (12) reaches the leftmost side of the conveyor belt (4), the electromagnetic suction cup (21) can discharge the magnetic impurities adsorbed by itself.

2. A waste aluminum sorting device according to claim 1, characterized in that: Side support plates (3) are fixed below the front and rear sides of the crushing box (1), and a crushing body (2) is installed inside the crushing box (1). The crushing body (2) includes squeezing rollers (201) rotatably installed side by side at the top of the crushing box (1), and crushing rollers (202) are rotatably installed side by side in the middle of the crushing box (1), and a lower hopper (203) is provided below the crushing box (1). A rotating assembly for driving the squeezing rollers (201) and the crushing rollers (202) to rotate is installed at the rear of the crushing box (1).

3. A waste aluminum sorting device according to claim 2, characterized in that: The rotating assembly comprises an upper gear (204) fixed to the rear ends of the central shafts of the two squeezing rollers (201), a lower gear (205) fixed to the rear ends of the two crushing rollers (202), and a chain transmission structure (206) for transmission connection between one of the upper gears (204) and the lower gear (205); a motor for driving one of the squeezing rollers (201) to rotate is installed at the rear of the crushing box (1).

4. The scrap aluminum sorting device according to claim 1, characterized in that: A support platform (5) is provided between the upper and lower layers of the conveyor belt (4), and the rear side of the support platform (5) extends to the rear ends of the conveyor belt (4). Both ends of the interior of the conveyor belt (4) are provided with transmission rollers (41), and the rear ends of the transmission rollers (41) are rotatably mounted inside the support platform (5) through bearings. A motor for driving one of the transmission rollers (41) to rotate is installed at one end of the interior of the support platform (5).

5. The scrap aluminum sorting device according to claim 1, characterized in that: The driving mechanism comprises: an inner gear ring (17) is fixed at a position corresponding to the conveyor belt (4) inside the gantry (12); a sun gear (27) is provided in the middle of the inner gear ring (17); at least two planetary gears (28) are evenly meshed between the sun gear (27) and the inner gear ring (17); a connecting shaft (24) is fixed in the middle of the lower end of the planetary gear (28); the electromagnetic suction cup (21) is installed on the lower surface of the connecting shaft (24); and a material turning rod (22) is fixed on both sides below the electromagnetic suction cup (21); and a universal wheel (23) is installed at the lower end of the material turning rod (22).

6. The scrap aluminum sorting device according to claim 5, characterized in that: An inverted V-shaped top (121) is fixed on the upper surface of the gantry (12), a motor (18) is fixed inside the inverted V-shaped top (121), a power output end of the motor (18) is fixed to a sun gear (27), a bracket (19) is provided above the inner portion of the inner gear ring (17), the upper end of the central axis of the planetary gear (28) is rotatably mounted in the bracket (19) via a bearing, sliders (20) are installed on both sides of the bracket (19), and a groove ring (171) matching the slider (20) is provided on the inner wall of the inner gear ring (17).

7. The scrap aluminum sorting device according to claim 6, characterized in that: An air inlet hole (122) is provided on the lower surface of the inverted V-shaped top (121), and a negative pressure pipe (11) is fixed to one end of the gantry (12), and a negative pressure fan (10) is installed at the other end of the negative pressure pipe (11).

8. The scrap aluminum sorting device according to claim 1, characterized in that: The invention also comprises a controller, wherein guide slides (16) are fixed to the front and rear sides of the gantry (12), the guide slide bar (6) passes through the guide slide bar (16), and support columns (7) are provided at both ends of the guide slide bar (6), a light source (26) is installed on the limit protrusion (15), a photoresistor (25) is fixed to the front surface of the driving roller (41) on the side close to the crushing box (1), the output end of the photoresistor (25) is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input end of the electromagnetic suction cup (21).

9. The scrap aluminum sorting device according to claim 1, characterized in that: A roller is provided on the inner wall of the long hole (14).

10. A smelting device for scrap aluminum, characterized in that: The sorting device comprises the sorting device described in any one of claims 1 to 9, characterized in that it also comprises an inclined loading auger (8) and a smelting furnace (9); the loading auger (8) is arranged below the end of the conveyor belt (4) away from the crushing box (1), and a loading hopper (81) is installed on the upper surface of the lower end of the loading auger (8), and the smelting furnace (9) is arranged on one side of the upper end of the loading auger (8).

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