Recycled aluminum ingot smelting furnace for scrap aluminum and processing technology of regenerated aluminum ingot smelting furnace

Abstract

The invention relates to a smelting furnace for regenerated aluminum ingots of scrap aluminum and a machining process of the smelting furnace, and relates to the technical field of aluminum ingot smelting. The smelting furnace for the regenerated aluminum ingots of the scrap aluminum comprises a furnace body, a rotating block is rotationally connected to the inner wall of the furnace body, a first servo electric cylinder is fixed to the rotating block, and a second servo electric cylinder is rotationally connected to the outer wall of the furnace body; the other end of the second servo electric cylinder is hinged to the outer wall of a cylinder body of the first servo electric cylinder, a mounting frame is fixed to the telescopic end of the first servo electric cylinder, a slagging-off plate is arranged on the mounting frame, and a slagging-off groove allowing waste residues to enter is formed in the other side, away from the rotating block, of the inner wall of the furnace body. The furnace door does not need to be opened in the slagging-off process, potential safety hazards are reduced, heat in the furnace body is not prone to flowing out, more energy is saved, the temperature of a workshop is prevented from rising too fast, and the working environment is prevented from deteriorating; the slagging-off plate can adapt to the liquid level to horizontally move, so that slagging-off is carried out, and the applicability is improved; the auxiliary slagging-off plate conducts slagging-off on the contact position of the edge of the molten aluminum and the inner wall of the furnace body, and therefore the slagging-off rate is increased.

Description

Technical Field

[0001] The present application relates to the technical field of aluminum ingot smelting, and in particular to a recycled aluminum ingot smelting furnace for scrap aluminum and a processing technology thereof. Background Art

[0002] Aluminum is a common metal, not only used in cans, but also in door and window frames, auto parts, industrial components, etc. Waste aluminum can be recycled and remelted into aluminum ingots. Aluminum ingots are used as raw materials and remelted and cast into new aluminum products. Since aluminum is used in large quantities, there is a broad space for recycling. Recycling and remelting waste aluminum is an important resource recycling business. The recycled aluminum contains some impurities, such as iron, silicon and various oxides. After aluminum is melted in the smelting furnace, iron sinks to the bottom of the aluminum water, and waste slag floats on the surface of the aluminum water. Before discharging the aluminum water, the waste slag on the surface of the aluminum water needs to be scraped off.

[0003] The invention patent application with publication number CN111889634A discloses an aluminum ingot smelting system and smelting process, including an old material smelting furnace, a refining furnace, a new material furnace, an aluminum liquid flow trough, a diverter and a continuous casting machine; the smelting system is used for smelting, the old aluminum material is placed in the old material smelting furnace for preliminary smelting, the melted aluminum liquid enters the refining furnace for refining, the new material furnace melts the configured aluminum material, the aluminum liquid after melting in the refining furnace and the new material furnace flows into the diverter through the aluminum liquid flow trough, and then the diverter is used to periodically divert the aluminum liquid to the continuous casting machine, and cast it into aluminum ingots in the continuous casting machine.

[0004] The utility model patent with the announcement number CN220407101U discloses a molten aluminum slag removal device, including a scraper body, a connecting assembly and a control rod. The scraper body includes a main rod body, a rotating rod and a scraper plate. One end of the main rod body is rotatably connected to one end of the rotating rod, and the scraper plate is installed on the other end of the rotating rod; the connecting assembly is arranged on the rotating rod, and a first ring body is arranged on the connecting assembly; a second ring body is arranged at one end of the control rod, and the second ring body and the first ring body are mutually sleeved. The utility model provides a molten aluminum slag removal device, which uses a control rod to push and pull the rotating rod, drive the rotating rod to rotate horizontally, change the direction of the scraper plate, and can scrape the slag at the two sides of the smelting furnace, especially the slag at the side corners near the edge of the side opening of the smelting furnace.

[0005] With regard to the above-mentioned related technologies, the inventor believes that whether the slag is removed manually or by a slag removal vehicle, the furnace door must be opened during the slag removal, and the furnace body is a high-temperature environment. During the slag removal process, on the one hand, there are safety hazards, and on the other hand, a large amount of heat in the furnace body flows out, which is not conducive to energy saving, and also causes the temperature in the workshop to rise, resulting in a deterioration of the working environment. Summary of the invention

[0006] The present application provides a recycled aluminum ingot smelting furnace for scrap aluminum and a processing technology thereof, which can remove slag from the surface of molten aluminum without opening the furnace door, thereby reducing safety hazards, reducing heat loss in the furnace body, and avoiding excessive temperature in the workshop.

[0007] The present application provides a recycled aluminum ingot smelting furnace for scrap aluminum, which adopts the following technical solution: A regenerated aluminum ingot smelting furnace for scrap aluminum comprises a furnace body, the furnace body is provided with a feed inlet and an aluminum liquid outlet, the inner wall of the furnace body is rotatably connected to a rotating block, a servo electric cylinder 1 is fixed on the rotating block, and the outer wall of the furnace body is rotatably connected to a servo electric cylinder 2, the other end of the servo electric cylinder 2 is hinged to the outer wall of the cylinder body of the servo electric cylinder 1, the telescopic end of the servo electric cylinder 1 passes through the rotating block and extends into the furnace body, a mounting frame is fixed to the telescopic end of the servo electric cylinder 1, a slag skimmer is arranged on the mounting frame, and a slag discharge trough for waste slag to enter is arranged on the other side of the inner wall of the furnace body away from the rotating block.

[0008] By adopting the above technical solution, when slag removal is required, the servo electric cylinder 1 and the servo electric cylinder 2 are controlled to operate, the slag removal plate moves, and the waste slag is pushed to the slag removal groove. After the slag removal is completed, the furnace door is opened and the molten aluminum is discharged through the molten aluminum outlet. Through the solution of this application, the furnace door does not need to be opened during the slag removal process, which reduces safety hazards, is not easy to cause heat outflow in the furnace body, is more energy-saving, avoids excessive temperature rise in the workshop, and avoids deterioration of the working environment.

[0009] Optionally, the scraper plate includes a main scraper plate and two auxiliary scraper plates, the two auxiliary scraper plates are respectively located at two ends of the main scraper plate, the main scraper plate is fixed to the mounting frame, the main scraper plate is horizontally arranged, and the auxiliary scraper plates are inclined.

[0010] By adopting the above technical solution, due to the tension of the molten aluminum, if only the top surface of the molten aluminum is flat-type deslagging, some waste slag will remain at the edge of the molten aluminum and cannot be removed. By setting an inclined auxiliary deslagging plate, deslagging is performed at the contact position between the edge of the molten aluminum and the inner wall of the furnace body, thereby improving the degree of deslagging.

[0011] Optionally, the main scraper plate is slidably connected with a guide rod in the vertical direction, the lower end of the auxiliary scraper plate is rotatably connected to the guide rod, the auxiliary scraper plate is provided with a slide groove along its length direction, and a round rod is fixed to the main scraper plate, and the round rod is slidably arranged in the slide groove.

[0012] By adopting the above technical scheme, after the guide rod is raised or lowered, the lower end of the auxiliary slag plate and the guide rod are adaptively rotated, the round rod is adaptively moved in the chute, and the inclination and bottom height position of the auxiliary slag plate also change accordingly, so as to adapt to the liquid surface shape of the edge of the molten aluminum surface to perform slag removal, thereby increasing the slag removal rate and reducing the removal of molten aluminum.

[0013] Optionally, shovel parts are fixed to the front bottom ends of the main scraping plate and the auxiliary scraping plate respectively.

[0014] By adopting the above technical solution, the shovel part scoops up the waste slag, thereby improving the slag scraping effect of the slag scraping plate.

[0015] Optionally, the guide rod is fixed with a baffle plate 1, the auxiliary slag removal plate is fixed with a baffle plate 2, and the baffle plate 1 is in sliding contact with the baffle plate 2 through the plate surface.

[0016] By adopting the above technical solution, baffle plate 1 and baffle plate 2 cooperate with each other to achieve a shielding effect, thereby preventing waste slag from leaking between the guide rod and the auxiliary slag scraper plate.

[0017] Optionally, a floating block is fixed to the bottom end of the guide rod.

[0018] By adopting the above technical solution, the float block plays a floating role on the surface of the molten aluminum. Through the float block, the upper and lower positions of the guide rod can be adaptively adjusted to adapt to the liquid level height at the edge of the molten aluminum, thereby automatically adjusting the inclination of the auxiliary slag plate.

[0019] Optionally, both upper and lower ends of the rotating block are arc surfaces, and the upper and lower ends of the rotating block are in sliding contact with the furnace body through the arc surfaces.

[0020] By adopting the above technical solution, when the rotating block rotates, the arc surface can minimize the leakage of heat in the furnace body through the upper and lower ends of the rotating block.

[0021] Optionally, the furnace body is provided with a motor 1 and a spiral feed rod driven by the motor 1, the spiral feed rod is located in a slag discharge trough, and a slag discharge port is provided at the bottom of one end of the slag discharge trough outside the furnace body.

[0022] By adopting the above technical solution, after the slag scraping plate pushes the waste slag into the slag discharge trough, the motor is started to drive the spiral feed rod to rotate, thereby bringing the waste slag in the slag discharge trough out from the slag discharge port.

[0023] In the second aspect, the present application provides a process for processing recycled aluminum ingots from scrap aluminum, which adopts the following technical solution: A process for processing recycled aluminum ingots from scrap aluminum uses the above-mentioned recycled aluminum ingot smelting furnace, comprising the following steps: Step S1: adding scrap aluminum into the furnace from the feed port, heating to 600-700°C, and melting the aluminum into molten aluminum; Step S2: the servo electric cylinder 1 and the servo electric cylinder 2 are actuated, and the slag scraping plate moves to scrape the waste slag on the surface of the molten aluminum; Step S3: the molten aluminum in the furnace body is discharged through the molten aluminum outlet and transported to the refining furnace, and materials are added into the refining furnace to adjust the composition of the molten aluminum; Step S4: Sampling and testing the composition of molten aluminum. If qualified, the molten aluminum is sent to the distributor through the channel. The molten aluminum is transported to each mold through the distributor and formed into aluminum ingots or alloy aluminum ingots after cooling.

[0024] By adopting the above technical solution, the slag scraping plate moves to scrape the waste slag on the surface of the molten aluminum, and the molten aluminum forms an aluminum alloy after the material is put into the refining furnace.

[0025] Optionally, in step S4, the distributor is driven to rotate by a motor, and the distributor includes a liquid inlet and a plurality of circumferentially distributed liquid outlets, wherein the liquid inlet is connected to the end of the channel, and the liquid outlets correspond one-to-one to each mold cavity on the mold.

[0026] By adopting the above technical solution, the motor drives the distributor to rotate at a constant speed. When the liquid outlet rotates to the lowest position, the molten aluminum in the distributor naturally flows out to the corresponding mold, realizing automatic aluminum injection into the mold.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. There is no need to open the furnace door during the slagging process, which reduces safety hazards, is not likely to cause heat outflow from the furnace, is more energy-efficient, avoids excessive temperature rise in the workshop, and avoids deterioration of the working environment; 2. The scraper plate can adapt to the liquid level and move horizontally to remove the debris, which improves the applicability; 3. The auxiliary slag removal plate removes slag from the contact position between the edge of the molten aluminum and the inner wall of the furnace body, thereby improving the slag removal rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a three-dimensional diagram of a recycled aluminum ingot melting furnace for scrap aluminum in Example 1; Figure 2 is a left side cross-sectional view of the first embodiment; Figure 3 It is a partial diagram of the first embodiment; Figure 4 yes Figure 3 A magnified image of point A; Figure 5 yes Figure 4 Exploded view of the structure; Figure 6 This is a top view flow chart of a processing technology for regenerating aluminum ingots from scrap aluminum in Example 2; Figure 7 It is a stereoscopic diagram of the dispenser and the mold of the second embodiment.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. furnace body; 11. feed port; 12. molten aluminum outlet; 13. rotating block; 2. servo electric cylinder 1; 3. servo electric cylinder 2; 21. mounting frame; 14. slag discharge chute; 15. rotating rod; 4. main slag removal plate; 5. auxiliary slag removal plate; 41. shovel; 51. guide rod; 52. slide; 53. round rod; 54. sealing plate; 55. floating block; 56. baffle 1; 57. baffle 2; 6. motor 1; 61. spiral feed rod; 62. slag discharge port; 7. refining furnace; 71. channel; 8. distributor; 9. mold; 81. liquid inlet; 82. liquid outlet. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] Embodiment 1:

[0032] Reference Figure 1 and Figure 2 The present embodiment discloses a regenerated aluminum ingot smelting furnace for scrap aluminum, comprising a furnace body 1, the furnace body 1 is provided with a feed inlet 11 and an aluminum liquid outlet 12, a rotating block 13 is rotatably connected to the inner wall of the furnace body 1, a servo electric cylinder 2 is fixed on the rotating block 13, a servo electric cylinder 2 is rotatably connected to the outer wall of the furnace body 1, the other end of the servo electric cylinder 2 3 is hinged to the outer wall of the cylinder body of the servo electric cylinder 2, the telescopic end of the servo electric cylinder 2 passes through the rotating block 13 and extends into the furnace body 1, a mounting frame 21 is fixed to the telescopic end of the servo electric cylinder 2, a slag skimming plate is arranged on the mounting frame 21, and a slag discharge trough 14 for waste slag to enter is arranged on the other side of the inner wall of the furnace body 1 away from the rotating block 13.

[0033] The cylinder body of servo electric cylinder 1 2 is located outside the furnace body 1, and the servo electric cylinder 2 3 is located outside the furnace body 1 as a whole, so as to avoid the high temperature in the furnace body 1 affecting the operation of servo electric cylinder 1 2 and servo electric cylinder 2 3. Servo electric cylinder 1 2 is fixed to the rotating block 13 through the end of the cylinder body. Servo electric cylinder 1 2 and servo electric cylinder 2 3 are both existing technologies, and can be accurately extended and retracted according to the control, and the speed and position of the extension and retraction can be accurately adjusted. The furnace body 1 is provided with a liquid level sensor for detecting the aluminum liquid level, and the liquid level sensor is electrically connected to servo electric cylinder 1 2 and servo electric cylinder 2 3 through a controller.

[0034] Specifically in this embodiment: when the servo electric cylinder 1 2 is in a horizontal state, the servo electric cylinder 1 2 is extended to make the slag removal plate move horizontally, so as to remove slag from the aluminum liquid level at a specific height; when the telescopic end of the servo electric cylinder 1 2 is in a tilted downward state, the servo electric cylinder 1 2 can be controlled to extend and the servo electric cylinder 2 3 can be slowly shortened so that the slag removal plate still moves along the horizontal line. At this time, the height position of the slag removal plate is used to correspond to the aluminum liquid level in the furnace body 1. Therefore, during each smelting, even if the aluminum liquid level in the furnace body 1 is different, the slag removal plate can adapt to the liquid level and move horizontally, so as to remove slag, which improves applicability. The telescopic speed and start-stop position of the servo electric cylinder 1 2 and the servo electric cylinder 2 3 have been preset during debugging, and can be operated according to the set value according to the liquid level in the furnace body 1.

[0035] Reference Figure 2 and Figure 3 , rotating rods 15 are fixed on both sides of the rotating block 13, and the rotating rods 15 penetrate the inner wall of the furnace body 1, so as to realize the rotating connection between the rotating block 13 and the furnace body 1. The upper and lower ends of the rotating block 13 are arc surfaces, and the upper and lower ends of the rotating block 13 are in sliding contact with the furnace body 1 through the arc surfaces. The position of the furnace body 1 for contacting the rotating block 13 is also an arc surface. When the rotating block 13 rotates, the arc surface can minimize the amount of heat in the furnace body 1 leaking through the upper and lower ends of the rotating block 13.

[0036] Reference Figure 3 and Figure 4 The scraping plate includes a main scraping plate 4 and two auxiliary scraping plates 5. The two auxiliary scraping plates 5 are respectively located at both ends of the main scraping plate 4. The main scraping plate 4 is fixed to the mounting frame 21. The main scraping plate 4 is horizontally arranged, and the auxiliary scraping plates 5 are inclined. The front bottom ends of the main scraping plate 4 and the auxiliary scraping plate 5 are respectively fixed with shovel parts 41. The shovel parts 41 shovel up the waste slag to improve the scraping effect of the scraping plate.

[0037] The main slag removal plate 4 is in the shape of a long strip, and is used to remove slag from most of the surface of the molten aluminum. The tension of the molten aluminum is very large. After the aluminum is melted into molten aluminum, the height position of the edge of the molten aluminum surface is lower than its center position. If only the top surface of the molten aluminum is removed in a plane, some waste slag will remain at the edge of the molten aluminum and cannot be removed. To solve this problem, the auxiliary slag removal plate 5 is set at an angle to remove slag from the contact position between the edge of the molten aluminum and the inner wall of the furnace body 1, thereby improving the degree of slag removal.

[0038] Reference Figure 4 and Figure 5 A guide rod 51 is slidably connected to the main scraper plate 4 in the vertical direction, and the lower end of the auxiliary scraper plate 5 is rotatably connected to the guide rod 51. A chute 52 is provided on the auxiliary scraper plate 5 along its length direction. A round rod 53 is fixed to the main scraper plate 4. The round rod 53 is slidably arranged in the chute 52, and the round rod 53 can freely rotate in the chute 52. The front of the auxiliary scraper plate 5 is provided with a sealing plate 54 to close the chute 52, thereby preventing waste slag from entering the chute 52.

[0039] A floating block 55 is fixed at the bottom end of the guide rod 51. The floating block 55 is made of a high temperature resistant material. The inside of the floating block 55 is hollow to ensure that it has sufficient buoyancy. The floating block 55 is used to float on the surface of the molten aluminum. Even if the floating block 55 is located on the waste slag at the beginning, as the auxiliary slag plate 5 and its shovel part 41 slag, the floating block 55 can then fall on the surface of the molten aluminum, thereby playing a floating role. Through the floating block 55, the upper and lower positions of the guide rod 51 can be adaptively adjusted to adapt to the liquid level height at the edge of the molten aluminum. After the guide rod 51 is raised and lowered, the lower end of the auxiliary slag plate 5 and the guide rod 51 are adaptively rotated, and the round rod 53 is adaptively moved in the chute 52. The inclination and bottom height position of the auxiliary slag plate 5 also change accordingly, so as to adapt to the liquid surface shape of the edge of the molten aluminum surface to slag, while improving the slag removal rate, reducing the removal of molten aluminum.

[0040] The guide rod 51 is fixed with a baffle plate 1 56, and the auxiliary slag removal plate 5 is fixed with a baffle plate 2 57. The baffle plate 1 56 and the baffle plate 2 57 are in sliding contact through the plate surface, and the side wall of the baffle plate 1 56 contacts the inner wall of the furnace body 1. The baffle plate 1 56 removes slag from the position of the inner wall of the furnace body 1 close to the aluminum liquid surface. The baffle plate 1 56 and the baffle plate 2 57 cooperate to have a shielding effect to prevent waste slag from leaking between the guide rod 51 and the auxiliary slag removal plate 5.

[0041] Reference Figure 2 and Figure 3 The furnace body 1 is provided with a motor 6 and a screw feed rod 61 driven by the motor 6. The screw feed rod 61 is located in the slag discharge trough 14. The motor 6 is located outside the furnace body 1. The inner bottom wall of the slag discharge trough 14 is in an arc shape that matches the screw feed rod 61. A slag discharge port 62 is provided at the bottom of one end of the slag discharge trough 14 located outside the furnace body 1. When the scraping plate pushes the waste slag into the slag discharge trough 14, the motor 6 is started to drive the screw feed rod 61 to rotate, so that the waste slag in the slag discharge trough 14 is taken out from the slag discharge port 62.

[0042] The implementation principle of the recycled aluminum ingot smelting furnace of a scrap aluminum in an embodiment of the present application is as follows: scrap aluminum raw materials are added into the furnace body 1 from the feed port 11, and the furnace body 1 is heated by a burner to 600-700°C until the aluminum is melted into molten aluminum, the iron metal sinks to the bottom of the molten aluminum, and the waste slag floats on the surface of the molten aluminum.

[0043] Then, the servo electric cylinder 1 2 and the servo electric cylinder 2 3 are controlled to operate, and the main slag removal plate 4 moves horizontally in contact with the aluminum liquid surface to remove slag, while the auxiliary slag removal plate 5 removes slag at the edge of the aluminum liquid, and finally the shovel part 41 is pressed against the inner wall of the furnace body 1 away from the rotating block 13. Then, the servo electric cylinder 1 2 and the servo electric cylinder 2 3 are controlled to operate, so that the shovel part 41 moves up to the slag removal groove 14, and the waste slag falls into the slag removal groove 14 through the extension and sudden stop of the servo electric cylinder 1 2.

[0044] After the slag removal is completed, the furnace door is opened and the molten aluminum is discharged through the molten aluminum outlet 12. According to the solution of the present application, the furnace door does not need to be opened during the slag removal process, which reduces safety hazards, is not easy to cause the heat in the furnace body 1 to flow out, is more energy-saving, avoids excessively high workshop temperature, and avoids deterioration of the working environment.

[0045] Embodiment 2:

[0046] Reference Figure 6 A process for processing recycled aluminum ingots from scrap aluminum, using a recycled aluminum ingot smelting furnace from scrap aluminum in Example 1, comprises the following steps: Step S1: waste aluminum is added into the furnace body 1 from the feed port 11, heated to 600-700°C, and the aluminum is melted into molten aluminum; the iron metal sinks to the bottom of the molten aluminum, and the waste slag floats on the surface of the molten aluminum.

[0047] Step S2: the servo electric cylinder 1 2 and the servo electric cylinder 2 3 are actuated, and the slag removal plate moves to remove the waste slag on the surface of the molten aluminum, and the waste slag is sent into the slag removal trough 14 .

[0048] Step S3: The molten aluminum in the furnace body 1 is discharged through the molten aluminum outlet 12 and transported to the refining furnace 7. Materials are added into the refining furnace 7 to adjust the composition of the molten aluminum for forming an aluminum alloy.

[0049] Step S4: Refer to Figure 7 , sampling and testing the composition of molten aluminum, after passing the test, the molten aluminum is transported to the distributor 8 through the channel 71, and then transported to each mold 9 through the distributor 8, and formed into aluminum ingots or alloy aluminum ingots after cooling.

[0050] In step S4, the distributor 8 is driven to rotate by a motor. The distributor 8 includes a liquid inlet 81 and a plurality of circumferentially distributed liquid outlets 82. The liquid inlet 81 is connected to the end of the channel 71. The liquid outlets 82 correspond to each mold cavity on the mold 9 one by one. The molds 9 are chain-connected to form a conveyor belt structure. The motor drives the distributor 8 to rotate at a constant speed. When the liquid outlet 82 rotates to the lowest position, the aluminum liquid in the distributor 8 naturally flows out to the corresponding mold 9, realizing automatic aluminum injection into the mold 9 without setting a valve for frequent opening and closing.

[0051] Through the above process, the production of recycled aluminum ingots is completed, the furnace body 1 can automatically remove slag, the waste slag on the aluminum liquid can be removed more cleanly, and high-quality aluminum ingots or alloy aluminum ingots can be produced.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A furnace for regenerating aluminum ingots from scrap aluminum, comprising a furnace body (1), wherein the furnace body (1) is provided with a feed inlet (11) and an aluminum liquid outlet (12), and characterized in that: The inner wall of the furnace body (1) is rotatably connected to a rotating block (13), a servo electric cylinder 1 (2) is fixed on the rotating block (13), and the outer wall of the furnace body (1) is rotatably connected to a servo electric cylinder 2 (3), the other end of the servo electric cylinder 2 (3) is hinged to the outer wall of the cylinder body of the servo electric cylinder 1 (2), the telescopic end of the servo electric cylinder 1 (2) passes through the rotating block (13) and extends into the furnace body (1), the telescopic end of the servo electric cylinder 1 (2) is fixed to a mounting frame (21), a slag removal plate is arranged on the mounting frame (21), and a slag discharge groove (14) for waste slag to enter is arranged on the other side of the inner wall of the furnace body (1) away from the rotating block (13).

2. The recycled aluminum ingot smelting furnace of scrap aluminum according to claim 1, characterized in that: The scraping plate comprises a main scraping plate (4) and two auxiliary scraping plates (5), the two auxiliary scraping plates (5) are respectively located at two ends of the main scraping plate (4), the main scraping plate (4) is fixed to a mounting frame (21), the main scraping plate (4) is arranged horizontally, and the auxiliary scraping plates (5) are arranged obliquely.

3. The recycled aluminum ingot smelting furnace of scrap aluminum according to claim 2, characterized in that: The main scraping plate (4) is slidably connected with a guide rod (51) in a vertical direction, the lower end of the auxiliary scraping plate (5) is rotatably connected with the guide rod (51), the auxiliary scraping plate (5) is provided with a slide groove (52) along its length direction, and the main scraping plate (4) is fixed with a round rod (53), and the round rod (53) is slidably arranged in the slide groove (52).

4. The recycled aluminum ingot smelting furnace of scrap aluminum according to claim 2, characterized in that: A shovel portion (41) is fixed to the front bottom ends of the main scraping plate (4) and the auxiliary scraping plate (5), respectively.

5. The recycled aluminum ingot smelting furnace of scrap aluminum according to claim 3, characterized in that: The guide rod (51) is fixed with a baffle plate 1 (56), and the auxiliary slag removal plate (5) is fixed with a baffle plate 2 (57), and the baffle plate 1 (56) and the baffle plate 2 (57) are in sliding contact through the plate surface.

6. The recycled aluminum ingot smelting furnace of scrap aluminum according to claim 3, characterized in that: A floating block (55) is fixed to the bottom end of the guide rod (51).

7. The recycled aluminum ingot smelting furnace of scrap aluminum according to claim 1, characterized in that: The upper and lower ends of the rotating block (13) are both arc surfaces, and the upper and lower ends of the rotating block (13) are in sliding contact with the furnace body (1) via the arc surfaces.

8. The recycled aluminum ingot smelting furnace of scrap aluminum according to claim 1, characterized in that: The furnace body (1) is provided with a motor (6) and a screw feed rod (61) driven to rotate by the motor (6); the screw feed rod (61) is located in a slag discharge trough (14); and a slag discharge port (62) is provided at the bottom of one end of the slag discharge trough (14) located outside the furnace body (1).

9. A process for processing recycled aluminum ingots from scrap aluminum, characterized in that: A recycled aluminum ingot smelting furnace using a scrap aluminum according to any one of claims 1 to 8 comprises the following steps: Step S1: adding scrap aluminum into the furnace body (1) from the feed port (11), heating to 600-700°C, and melting the aluminum into molten aluminum; Step S2: the servo electric cylinder 1 (2) and the servo electric cylinder 2 (3) are actuated, and the slag scraping plate moves to scrape the waste slag on the surface of the molten aluminum; Step S3: the molten aluminum in the furnace body (1) is discharged through the molten aluminum outlet (12) and transported to the refining furnace (7), and materials are added into the refining furnace (7) to adjust the composition of the molten aluminum; Step S4: sampling and testing the composition of the molten aluminum. If qualified, the molten aluminum is transported to the distributor (8) through the channel (71). The molten aluminum is transported to each mold (9) through the distributor (8) and forms an aluminum ingot or an alloy aluminum ingot after cooling.

10. The process for processing recycled aluminum ingots from scrap aluminum according to claim 9, characterized in that: In step S4, the distributor (8) is driven to rotate by a motor, and the distributor (8) includes a liquid inlet (81) and a plurality of circumferentially distributed liquid outlets (82), wherein the liquid inlet (81) is connected to the end of the channel (71), and the liquid outlets (82) correspond one-to-one to each mold cavity on the mold (9).

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