Production equipment for recycling aluminum die-casting wastes and production process thereof

Abstract

The invention relates to production equipment for recycling aluminum die-casting waste, and relates to the technical field of aluminum refining and reutilization, the production equipment comprises a crushing device and a melting device, the crushing device comprises a crushing box, two crushing rollers and a washing mechanism, an inlet is formed in the top of the crushing box, and an outlet is formed in the bottom of the crushing box; the two crushing rollers are arranged in the crushing box in a reverse rotation mode, the washing mechanism is arranged on one side of an inlet of the crushing box and comprises a washing pool and a lifting plate, the washing pool is installed at the inlet of the crushing box and filled with washing liquid, the lifting plate is arranged in the washing pool in a sliding mode, and a plurality of drainage holes are formed in the lifting plate. The lifting plate is an inclined plate and inclines towards an inlet of the crushing box, the melting device is arranged below an outlet of the crushing box, and crushed aluminum enters the melting device through the outlet to be melted. The method has the effect of improving the quality of recycled aluminum.

Description

Technical Field

[0001] This application relates to the field of aluminum refining and recycling, and in particular to a production equipment and process for recycling aluminum die casting waste. Background Technology

[0002] Aluminum die casting waste refers to residual materials generated during the aluminum die casting production process, such as gates, overflow slag, scrap parts, waste materials, and aluminum die castings that have been scrapped. Since they are made of aluminum, they have high recycling value.

[0003] Existing aluminum die-casting waste is recycled by melting it at high temperatures and then recasting it. However, the surface of the scrapped aluminum castings is prone to adsorbing various impurities. During recycling, the molten aluminum contains a large number of impurities, which leads to a decrease in the quality of the recycled aluminum. Summary of the Invention

[0004] In order to improve the quality of recycled aluminum, this application provides a recycling production equipment for aluminum die casting waste.

[0005] The recycling production equipment for aluminum die-casting waste provided in this application adopts the following technical solution: A production device for recycling aluminum die-casting waste includes a crushing device and a melting device. The crushing device includes a crushing box, crushing rollers, and a washing mechanism. The crushing box has an inlet at the top and an outlet at the bottom. There are two crushing rollers that rotate in opposite directions inside the crushing box. The washing mechanism is located on one side of the crushing box inlet and includes a washing tank and a lifting plate. The washing tank is installed at the crushing box inlet and is filled with washing liquid. The lifting plate is slidably disposed in the washing tank and has several drainage holes. The lifting plate is an inclined plate that tilts towards the crushing box inlet. The melting device is located below the crushing box outlet, and the crushed aluminum enters the melting device through the outlet for melting.

[0006] By adopting the above technical solution, the aluminum die-casting waste is immersed in a washing mechanism to remove impurities from the surface of the aluminum die-casting waste, thereby reducing the impurity content on the surface of the aluminum die-casting waste and improving the quality of the aluminum after recycling; the crushing roller crushes the aluminum die-casting waste, thereby shortening the time required for the aluminum die-casting waste to melt into aluminum liquid and improving the production efficiency of recycling.

[0007] Optionally, a driving mechanism is provided between the lifting plate and the washing pool. The driving mechanism includes a driving rod and a driving component. One end of the driving rod is fixed to the lifting plate and the other end extends to the outside of the washing pool. The driving component is installed outside the washing pool. The driving component drives the driving rod to slide, thereby causing the lifting plate to slide.

[0008] Optionally, the melting device includes a body, a heating element, a conveyor belt, and a receiving hopper. The top of the body has a feed inlet corresponding to the outlet of the crushing box, and the side wall of the body has a discharge port. The heating element is installed inside the body, and the conveyor belt is located inside the body, conveying materials towards the discharge port. The conveyor belt is a metal mesh belt, and the receiving hopper is located below the conveyor belt inside the body.

[0009] Optionally, the machine body is provided with a partition plate that divides the interior of the machine body into two cavities. Two heating elements are provided, each located in one of the two cavities of the machine body. Two receiving hoppers are provided, each located in one of the two cavities below the conveyor belt of the machine body.

[0010] Optionally, the receiving hopper is detachable from the machine body, and the receiving hopper is slidably installed on or removed from the machine body.

[0011] Optionally, the machine body is equipped with exhaust pipes at both cavities, and the end of the exhaust pipe furthest from the machine body is connected to the washing basin.

[0012] Optionally, a one-way valve is installed at the end of the exhaust pipe near the washing tank, and the one-way valve restricts the washing liquid in the washing tank from passing through the exhaust pipe.

[0013] Optionally, a branch pipe is connected to the exhaust pipe of the cavity near the discharge port, and the end of the branch pipe away from the exhaust pipe is connected to the cavity near the feed port.

[0014] Optionally, the body is equipped with temperature sensors in both cavities, which are used to detect the temperature inside the cavities.

[0015] A production process for recycling aluminum die-casting waste, using equipment for recycling aluminum die-casting waste, includes the following steps: S1: Washing, placing the aluminum die-casting waste into the washing tank for washing to remove surface impurities from the aluminum die-casting waste; S2: Preheating, preheating the aluminum die-casting waste; S3: Crushing, crushing aluminum die-casting waste by crushing rollers; S4: Melt impurities. The crushed aluminum die-casting waste is heated to melt impurities. The heating temperature is lower than the melting temperature of aluminum. Impurities with a melting point lower than aluminum are melted and filtered out. S5: Melting aluminum. The aluminum die-casting waste after impurities are melted is heated and melted. The temperature for heating and melting aluminum is higher than the melting temperature of aluminum but lower than the melting temperature of alumina. After the aluminum is melted, it is filtered and collected for reuse in the aluminum die-casting process. S6: Impurity discharge, which removes unmelted alumina from the impurity discharge port.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. The aluminum die-casting waste is immersed in a washing mechanism to remove impurities from its surface, thereby reducing the impurity content and improving the quality of the recycled aluminum. The crushing roller crushes the aluminum die-casting waste, thereby shortening the time required to melt the waste into molten aluminum and improving the efficiency of recycling. 2. The drive unit drives the drive rod to slide, which in turn moves the lifting plate. By using a drive unit located outside the washing pool to drive the lifting plate, the impact of the washing liquid on the drive unit can be reduced. 3. After the aluminum casting fragments are crushed into small pieces, they leave the crushing box through the outlet and enter the machine body through the feed inlet. They fall onto the conveyor belt, where they are heated and melted. The melted part falls into the receiving hopper through the filter of the conveyor belt, while the unmelted part is conveyed through the conveyor belt and discharged from the machine body through the waste discharge port. 4. The machine body is divided into two chambers by a partition plate, and two heating elements are used to heat the two chambers separately to achieve different temperatures, thereby melting different materials and obtaining different material solutions in the two chambers; the receiving hopper is detachable from the machine body. The receiving hopper can be installed on the machine body by sliding or removed from the machine body. By removing the receiving hopper, the collected material solution can be easily transferred to the subsequent casting equipment. In this embodiment, the receiving hopper is equipped with a handle, which provides a gripping area and facilitates the sliding of the receiving hopper; 5. By venting hot air into the washing tank through the exhaust pipe, the temperature of the washing liquid can be increased, thereby preheating the aluminum die-casting waste while washing it. This increases the initial temperature of the aluminum die-casting waste when it enters the melting device, reducing the heating time of the aluminum die-casting waste in the melting device. The heat used for preheating comes from the gas discharged from the chamber, saving energy. At the same time, the heated aluminum die-casting waste is also easier to break, reducing the difficulty of breaking it. 6. The branch pipe can transport hot air from the higher temperature chamber to the lower temperature chamber, thereby reducing the energy required for the lower temperature chamber to generate heat, realizing the rational use of energy, saving production costs and resources. The real-time temperature of the two chambers can be easily monitored through the display and temperature sensor, so that the temperature of the two chambers can be easily adjusted according to actual needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 2 This is a cross-sectional view of the overall structure of an embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the overall structure of an embodiment of this application from another perspective.

[0020] Figure 4 yes Figure 3 A magnified view of section A in the middle.

[0021] In the diagram, 1. Crushing device; 101. Crushing box; 102. Crushing roller; 103. Washing mechanism; 1031. Washing tank; 1032. Lifting plate; 2. Melting device; 21. Machine body; 22. Heating element; 23. Conveyor belt; 24. Receiving hopper; 3. Inlet; 4. Outlet; 5. Drain hole; 6. Drive mechanism; 61. Drive rod; 62. Drive element; 7. Feed inlet; 8. Waste outlet; 9. Cavity; 10. Handle; 11. Divider plate; 12. Exhaust pipe; 13. Check valve; 14. Branch pipe; 15. Temperature sensor; 16. Display; 17. Solution pipe; 18. Power fan; 19. Gear set; 191. Power gear; 192. Transmission gear. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 The present application will be further described with reference to specific embodiments: First, it should be noted that in the description of this application, the use of directional terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for descriptive purposes and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of numerical quantifiers such as "first," "second," and "third" is for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] This application discloses a production equipment for recycling aluminum die-casting waste, referring to... Figure 1 and Figure 2The system includes a melting device 2 placed on the ground and a crushing device 1 installed on the melting device 2. The crushing device 1 includes a crushing box 101, crushing rollers 102, and a washing mechanism 103. The crushing box 101 has an inlet 3 at the top and an outlet 4 at the bottom. There are two crushing rollers 102, which are arranged in opposite directions inside the crushing box 101. A motor is installed on the crushing box 101, and the motor drives one of the crushing rollers 102 to rotate. A gear set 19 is arranged between the two crushing rollers 102, and the power is transmitted through the gear set 19 to rotate the crushing rollers 102. Synchronous reverse rotation achieves counter-rolling of the crushing rollers 102. In this embodiment, the gear set 19 includes two power gears 191 respectively installed on the crushing rollers 102 and two transmission gears 192 rotatably disposed between the two power gears 191. The washing mechanism 103 is installed on one side of the inlet 3 of the crushing box 101, covering half of the inlet 3. The washing mechanism 103 includes a washing tank 1031 and a lifting plate 1032. The washing tank 1031 is installed at the inlet 3 of the crushing box 101 and covers half of the inlet 3. The washing tank 1031 is filled with... The washing solution is used to wash aluminum die-casting waste. A lifting plate 1032 is slidably positioned within the washing tank 1031. Several drainage holes 5 are arranged in a row along the lifting plate 1032. These drainage holes 5 allow small debris and water to escape from the lifting plate 1032 when it is raised. The lifting plate 1032 is inclined, tilting towards the uncovered area of ​​the inlet 3 of the crushing box 101, guiding the washed aluminum die-casting waste into the crushing box 101. A solution pipe 1 is connected and communicates with the washing tank 1031 near its bottom. 7. A valve is installed on the solution pipe 17 for discharging or replenishing the washing liquid in the washing tank 1031. The melting device 2 is located below the outlet 4 of the crushing box 101. The crushed aluminum enters the melting device 2 through the outlet 4 for melting. The aluminum die-casting waste is washed by the washing mechanism 103 to remove impurities from the surface of the aluminum die-casting waste, thereby reducing the impurity content on the surface of the aluminum die-casting waste and improving the quality of the aluminum after recycling. The crushing roller 102 crushes the aluminum die-casting waste, thereby shortening the time required for the aluminum die-casting waste to melt into aluminum liquid and improving the production efficiency of recycling.

[0024] Reference Figure 3 and Figure 4A drive mechanism 6 is provided between the lifting plate 1032 and the washing pool 1031. The drive mechanism 6 includes a drive rod 61 and a drive component 62. One end of the drive rod 61 is fixed to the lifting plate 1032 and the other end extends to the outside of the washing pool 1031. In this embodiment, there are four drive rods 61, which are evenly arranged on both sides of the length direction of the lifting plate 1032. The drive component 62 is installed outside the washing pool 1031. In this embodiment, the drive component 62 is a drive electric cylinder. The drive component 62 drives the drive rod 61 to slide and move the lifting plate 1032. By driving the lifting plate 1032 with the drive component 62 located outside the washing pool 1031, the influence of the washing liquid on the drive component 62 can be reduced.

[0025] Reference Figure 1 and Figure 2 The melting device 2 includes a body 21, a heating element 22, a conveyor belt 23, and a receiving hopper 24. The body 21 is a rectangular shell placed on the ground. A feed inlet 7 is provided on the top of the body 21 corresponding to the outlet 4 of the crushing box 101. A waste discharge port 8 is provided on one side wall along the length of the body 21. The heating element 22 is installed inside the body 21. In this embodiment, the heating element 22 is an electric heating wire used for heating in a high-frequency furnace. The conveyor belt 23 is arranged inside the body 21 and moves along the body 21. The conveyor belt 23 is a metal mesh belt, and the receiving hopper 24 is set inside the machine body 21 below the conveyor belt 23. The aluminum casting fragments crushed into small pieces leave the crushing box 101 through the outlet 4 and enter the machine body 21 through the feed inlet 7, and fall onto the conveyor belt 23. After being heated and melted inside the machine body 21, the melted part falls into the receiving hopper 24 through the filter of the conveyor belt 23, and the unmelted part is conveyed through the conveyor belt 23 and discharged from the machine body 21 through the discharge port 8.

[0026] Reference Figure 1 and Figure 2The machine body 21 is equipped with a partition plate 11, which divides the interior of the machine body 21 into two chambers 9. Two heating elements 22 are installed, one in each of the two chambers 9 of the machine body 21. Two receiving hoppers 24 are also installed, one in each of the two chambers 9, below the conveyor belt 23 of the machine body 21. The partition plate 11 divides the interior of the machine body 21 into two chambers, and the two heating elements 22 heat each chamber separately, achieving different temperatures in the two chambers and thus melting different materials to obtain different material solutions in the two chambers. The receiving hoppers 24 are detachable from the machine body 21. The receiving hopper 24 is slidably mounted on or detached from the machine body 21. By detaching the receiving hopper 24, the collected material solution can be easily transferred to the subsequent casting equipment. In this embodiment, a handle 10 is installed on the receiving hopper 24, which provides a gripping area to facilitate the sliding of the receiving hopper 24. Alternatively, an extraction pipe can be set between the machine body 21 and the receiving hopper 24 to extract impurities or aluminum solution from the receiving hopper 24, thereby facilitating the transport of impurities and aluminum solution. If an extraction pipe is set, the purpose of sliding and detaching the receiving hopper 24 is to clean the receiving hopper 24 periodically.

[0027] Reference Figure 3 and Figure 4The machine body 21 is connected to and connected to exhaust pipes 12 at both cavities 9. Each exhaust pipe 12 is equipped with a power fan 18, which acts as an exhaust fan. The power fan 18 draws the gas from inside the cavities 9 through the exhaust pipes 12. The end of the exhaust pipe 12 furthest from the machine body 21 is connected to and connected to the washing tank 1031. The exhaust pipe 12 is used to expel hot air from inside the cavities 9. Expelling hot air into the washing tank 1031 through the exhaust pipe 12 increases the temperature of the washing liquid, thereby improving the washing efficiency of aluminum die-casting waste. Simultaneously, the aluminum die-casting waste is preheated, increasing its initial temperature upon entering the melting device 2 and reducing its heating time within the device. The preheating heat comes from the exhaust gas, saving energy. Furthermore, the heated aluminum die-casting waste is easier to break, reducing the difficulty of crushing. A one-way valve 13 is installed at the end of the exhaust pipe 12 near the washing tank 1031. The one-way valve 13 restricts the washing liquid in the washing tank 1031 from passing through the exhaust pipe 12. The design reduces the probability of washing liquid in the washing tank 1031 entering the chamber through the exhaust pipe 12, thereby reducing the probability of the washing liquid affecting the melting of aluminum die-casting waste. A branch pipe 14 is connected to the exhaust pipe 12 of the chamber 9 near the discharge port 8. The end of the branch pipe 14 away from the exhaust pipe 12 is connected to the end of the chamber 9 near the feed port 7. The branch pipe 14 can transport hot air from the chamber with a higher temperature to the chamber with a lower temperature, thereby reducing the energy required for the chamber with a lower temperature to generate heat, realizing the rational use of energy, saving production costs and resources. Temperature sensors 15 are installed in both chambers 9 on the machine body 21. The temperature sensors 15 are used to detect the temperature inside the chamber 9. A display 16 is set on the outside of the machine body 21 corresponding to the temperature sensors 15. The display 16 displays the temperature inside the chamber. The real-time temperature of the two chambers can be easily understood through the display 16 and the temperature sensors 15, so that the temperature of the two chambers can be easily adjusted according to actual needs.

[0028] A production process for recycling aluminum die-casting waste, using equipment for recycling aluminum die-casting waste, includes the following steps: S1: Washing, placing the aluminum die-casting waste into a washing tank 1031 for washing to remove surface impurities. Washing reduces impurities adhering to the surface of the aluminum die-casting waste, thereby reducing the impurity content of aluminum and improving its quality during subsequent processing; S2: Preheating, preheating the aluminum die-casting waste. Preheating shortens the time and heat consumption during subsequent melting of the aluminum die-casting waste. Preheating before crushing makes crushing easier and improves the crushing effect; S3: Crushing, crushing the aluminum die-casting waste into small pieces using crushing rollers 102. This increases the heating area during subsequent melting, thereby improving melting efficiency; S4: Melting impurities, heating the crushed aluminum die-casting waste to melt impurities. The melting temperature is lower than the melting temperature of aluminum, and the impurities are melted at temperatures lower than the melting point of aluminum. Aluminum impurities are melted and filtered out. Aluminum has a melting point of 660℃, so in this embodiment, the temperature for melting impurities is set to 650℃. Melting and filtering the impurities removes impurities with melting points lower than aluminum, thereby improving the purity of aluminum and the quality of recycled aluminum. S5: Melting aluminum. The aluminum die-casting waste after melting impurities is heated and melted. The temperature for melting aluminum is higher than the melting point of aluminum but lower than the melting point of alumina. The melting point of alumina is 2054℃, so the melting temperature of aluminum is between 660℃ and 2054℃. In this embodiment, the melting temperature of aluminum is set to 680℃. After melting, the aluminum is filtered and collected for reuse in the production of aluminum die-castings. The surface of used aluminum die-castings is easily oxidized to form alumina. The melting point of alumina is much higher than that of aluminum. By setting a temperature that dissolves aluminum but cannot dissolve alumina, the aluminum is separated from the alumina after melting, thereby improving the purity and quality of recycled aluminum. S6: Removing impurities. Unmelted alumina is discharged from the impurity discharge port 8.

[0029] The implementation principle of this application embodiment is as follows: aluminum die-casting waste is placed in the washing tank 1031 for washing. At the same time, the heating element 22 is activated to heat the two chambers, and the excess heat generated by the heating is transferred to the washing tank 1031 to preheat the aluminum die-casting waste. After the aluminum die-casting waste is washed, the lifting plate 1032 is driven by the driving element 62 to slide to the washing tank 1031. The aluminum die-casting waste is guided by the lifting plate 1032 into the crushing box 101, where it is crushed by the crushing roller 102. The crushed aluminum die-casting waste leaves the crushing box 101 through the outlet 4 and enters the machine body 21 through the feed inlet 7. The aluminum fragments are then crushed. After entering the machine body 21, the aluminum is heated in the first chamber 9 until impurities with a melting point lower than aluminum are melted. The melted impurities fall through the metal mesh belt into the receiving hopper 24 below the first chamber 9. The molten aluminum and alumina with a melting point higher than aluminum are conveyed through the conveyor belt 23 to the second chamber 9. In the second chamber 9, the aluminum is melted and falls through the metal mesh belt into the receiving hopper 24 below the second chamber 9. The unmelted alumina is discharged from the machine body 21 through the discharge port 8 via the conveyor belt 23, thus completing the separation and melting of aluminum die casting waste. Subsequently, the molten aluminum is sent into the mold for recasting, thus completing the reuse of aluminum die casting waste.

[0030] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A production equipment for recycling aluminum die-casting waste, characterized in that: The device includes a crushing device (1) and a melting device (2). The crushing device (1) includes a crushing box (101), crushing rollers (102), and a washing mechanism (103). The crushing box (101) has an inlet (3) at the top and an outlet (4) at the bottom. There are two crushing rollers (102), which are arranged in opposite directions inside the crushing box (101). The washing mechanism (103) is located on one side of the inlet (3) of the crushing box (101). The washing mechanism (103) includes a washing tank (1031) and a lifting plate (1032). The washing tank (1031) is installed at the inlet (3) of the crushing box (101). The washing tank (1031) is filled with washing liquid. The lifting plate (1032) is slidably installed in the washing tank (1031). Several drainage holes (5) are opened on the lifting plate (1032). The lifting plate (1032) is an inclined plate and is inclined towards the inlet (3) of the crushing box (101). The melting device (2) is installed below the outlet (4) of the crushing box (101). The crushed aluminum enters the melting device (2) through the outlet (4) for melting.

2. The production equipment for recycling aluminum die-casting waste according to claim 1, characterized in that: A drive mechanism (6) is provided between the lifting plate (1032) and the washing pool (1031). The drive mechanism (6) includes a drive rod (61) and a drive component (62). One end of the drive rod (61) is fixed to the lifting plate (1032) and the other end extends to the outside of the washing pool (1031). The drive component (62) is installed outside the washing pool (1031). The drive component (62) drives the drive rod (61) to slide and cause the lifting plate (1032) to slide.

3. The production equipment for recycling aluminum die-casting waste according to claim 1, characterized in that: The melting device (2) includes a body (21), a heating element (22), a conveyor belt (23), and a receiving hopper (24). The top of the body (21) is provided with a feed inlet (7) corresponding to the outlet (4) of the crushing box (101). The side wall of the body (21) is provided with a discharge port (8). The heating element (22) is installed inside the body (21). The conveyor belt (23) is set inside the body (21) and conveys towards the discharge port (8). The conveyor belt (23) is a metal mesh belt. The receiving hopper (24) is set inside the body (21) below the conveyor belt (23).

4. The production equipment for recycling aluminum die-casting waste according to claim 3, characterized in that: The machine body (21) is provided with a partition plate (11), which divides the interior of the machine body (21) into two cavities (9). Two heating elements (22) are provided, and the two heating elements (22) are respectively provided in the two cavities (9) of the machine body (21). Two receiving hoppers (24) are provided, and the two receiving hoppers (24) are respectively provided in the two cavities (9) below the conveyor belt (23) of the machine body (21).

5. The production equipment for recycling aluminum die-casting waste according to claim 4, characterized in that: The receiving hopper (24) is detachable from the machine body (21) and can be installed on the machine body (21) by sliding or removed from the machine body (21).

6. The production equipment for recycling aluminum die-casting waste according to claim 5, characterized in that: The body (21) has exhaust pipes (12) connected to both cavities (9), and the end of the exhaust pipe (12) away from the body (21) is connected to the washing pool (1031).

7. The production equipment for recycling aluminum die-casting waste according to claim 6, characterized in that: A one-way valve (13) is installed at one end of the exhaust pipe (12) near the washing tank (1031), and the one-way valve (13) restricts the washing liquid in the washing tank (1031) from passing through the exhaust pipe (12).

8. The production equipment for recycling aluminum die-casting waste according to claim 6, characterized in that: A branch pipe (14) is connected to the exhaust pipe (12) of the cavity (9) near the discharge port (8). The end of the branch pipe (14) away from the exhaust pipe (12) is connected to the cavity (9) near the feed port (7).

9. The production equipment for recycling aluminum die-casting waste according to claim 8, characterized in that: The body (21) is equipped with temperature sensors (15) in both cavities (9), and the temperature sensors (15) are used to detect the temperature inside the cavities (9).

10. A production process for recycling aluminum die-casting waste, using the production equipment for recycling aluminum die-casting waste as described in claim 9, comprising the following steps: S1: Washing, put the aluminum die-casting waste into the washing tank (1031) for washing to remove surface impurities from the aluminum die-casting waste; S2: Preheating, preheating the aluminum die-casting waste; S3: Crushing, the aluminum die-casting waste is crushed by crushing roller (102); S4: Melt impurities. The crushed aluminum die-casting waste is heated to melt impurities. The heating temperature is lower than the melting temperature of aluminum. Impurities with a melting point lower than aluminum are melted and filtered out. S5: Melting aluminum. The aluminum die-casting waste after impurities are melted is heated and melted. The temperature for heating and melting aluminum is higher than the melting temperature of aluminum but lower than the melting temperature of alumina. After the aluminum is melted, it is filtered and collected for reuse in the aluminum die-casting process. S6: Remove impurities, and discharge unmelted alumina from the impurity discharge port (8).

Images