Aluminum ash wet process harmless-aluminum resource collaborative recovery device

Abstract

The invention discloses an aluminum ash wet process harmless-aluminum resource collaborative recovery device, and relates to the field of aluminum resource recovery, the aluminum ash wet process harmless-aluminum resource collaborative recovery device comprises a reaction kettle and a liquid injection cylinder, the liquid injection cylinder is arranged on a sealing cover of the reaction kettle, a sealing cylinder is installed on the sealing cover, and a plurality of liquid injection pipes are arranged on the part, located on the bottom side of the sealing cover, of the sealing cylinder; a liquid injection assembly is arranged in the sealing cylinder and is used for quantitatively injecting the alkaline liquid in the liquid injection cylinder into the reaction kettle for multiple times through a plurality of liquid injection pipes; a pH value detector is mounted on the reaction kettle and is used for detecting the pH value of liquid in the reaction kettle in real time and controlling the driving component to start and stop according to a detection result; by adopting a'monitoring-feedback-execution 'closed-loop control mode, the alkali liquor can be ensured to be always added in a mode closest to the stoichiometric ratio, and the problem that the alkali liquor is excessive or insufficient is fundamentally avoided.

Description

Technical Field

[0001] This invention relates to the field of aluminum resource recycling technology, specifically to a device for the wet harmless treatment of aluminum ash slag and the co-recycling of aluminum resources. Background Technology

[0002] Aluminum slag is a hazardous solid waste generated during aluminum smelting and processing. It contains usable metallic aluminum, alumina, and other resources, but also harmful components such as aluminum nitride, fluorides, and chlorides. Its harmless treatment and resource recovery are essential requirements for the sustainable development of the industry.

[0003] Currently, the main methods for treating aluminum ash slag include secure landfill, pyrometallurgical recovery, and hydrometallurgical recovery. Among these, hydrometallurgical processes, especially alkaline leaching, have attracted attention due to their relatively mild reaction conditions and effective recovery of aluminum resources. However, existing hydrometallurgical alkaline leaching processes and equipment still have several significant drawbacks in practical industrial applications: 1. Coarse reaction control, posing safety and environmental risks: When metallic aluminum and aluminum nitride in aluminum ash come into contact with alkaline solution, a large amount of hydrogen and ammonia gas is generated instantaneously in the initial stage of the reaction, causing a sharp increase in pressure and temperature inside the reactor, which can easily lead to splashing, overflow, or even safety accidents. At the same time, the violent reaction also makes it easy for harmful gases to escape, putting enormous pressure on the operating environment and exhaust gas treatment system. 2. Inaccurate process parameter control, resulting in poor economic efficiency: Traditional intermittent alkaline leaching processes usually use a one-time or simple batch addition of alkaline solution. Due to the complex and fluctuating composition of aluminum ash, this experience-based dosing method is prone to two adverse situations: First, insufficient alkali addition leads to incomplete aluminum leaching reaction, low resource recovery rate, and residual active components still pose a risk in subsequent treatment; second, excessive alkali addition not only wastes chemical reagents and increases treatment costs, but also results in excessively high levels of free alkali in the subsequent solution, increasing the difficulty and cost of neutralization and wastewater treatment. 3. Low mixing efficiency and long reaction cycle: If the alkali solution cannot be quickly and uniformly mixed with the slurry in the reactor during addition, areas with excessively high or low pH values ​​can easily occur. This may exacerbate side reactions, affect the purity of the target product, and also lead to a decrease in the overall reaction rate, requiring a longer reaction time to achieve the predetermined leaching rate, thus reducing the unit capacity of the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a wet process for harmless treatment of aluminum ash slag and a co-process recovery device for aluminum resources, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wet harmless treatment device for aluminum ash slag and a co-recycling device for aluminum resources, comprising a reaction vessel and a liquid injection cylinder, wherein the liquid injection cylinder is disposed on a sealing cover on the reaction vessel, a sealing cylinder is installed on the sealing cover, and multiple liquid injection pipes are provided on the bottom side of the sealing cylinder; The sealed cylinder is equipped with a liquid injection assembly, which is used to inject alkaline liquid in the liquid injection cylinder into the reaction vessel multiple times in a quantitative manner through multiple liquid injection tubes. The bottom of the sealing cylinder is equipped with a swinging component, which is used to swing each injection tube to promote the uniform injection of alkaline liquid into the reaction vessel and quickly increase the pH value of the liquid in the reaction vessel. The sealing cap is provided with a drive assembly, which is used to drive the liquid injection assembly and the swing assembly to operate simultaneously. The reactor is equipped with a gas extraction component, which is used to continuously extract gas from the reactor to maintain a negative pressure state inside the reactor. A pH meter is installed on the reactor. The pH meter is used to detect the pH value of the liquid in the reactor in real time and control the start and stop of the drive component based on the detection result.

[0006] Preferably, the injection assembly includes a piston one and a piston two slidably disposed within a sealing cylinder; the injection cylinder is connected to the sealing cylinder and a one-way valve is provided at the connection between the injection cylinder and the sealing cylinder; a connecting pipe is provided between the injection pipe and the sealing cylinder, the connecting pipe is connected to the sealing cylinder and rotatably connected to the injection pipe; a limiting unit is provided at the bottom of the piston one, the limiting unit is used to limit the maximum height and minimum height of the piston one, and its upper surface is located below the liquid inlet of the one-way valve and the liquid outlet of the connecting pipe, respectively.

[0007] Preferably, the limiting unit includes a slide rod fixedly connected to the bottom end of the piston, the slide rod being slidably connected to the sealing cylinder and a limiting block being fixedly connected to the slide rod, the limiting block being located at the bottom of the sealing cylinder; a spring is sleeved on the slide rod, the upper and lower ends of the spring being fixedly connected to the sealing cylinder and the slide rod, respectively.

[0008] Preferably, the swing assembly includes a collar sleeved on the bottom side of the sealing cylinder, with sliding frames symmetrically fixedly connected to the collar at left and right positions, and the sliding frames slidably connected to the sealing cap; a plurality of drive blocks I are fixedly connected to the collar, the number of drive blocks I being equal to the number of injection tubes; and drive blocks II are fixedly connected to the injection tubes, with the plurality of drive blocks II respectively engaging with the plurality of drive blocks I with clearance.

[0009] Preferably, the first drive block is a horizontally arranged "U" shape; the second drive block is a vertically arranged shaft connecting to the injection tube, and the part of the second drive block that mates with the first drive block is a round rod.

[0010] Preferably, the driving assembly includes a first fixing frame fixed to the sealing cover, and the injection cylinder is fixedly connected to the first fixing frame; a first lead screw is fixedly connected to the upper end of the second piston, a driving frame is sleeved on the first lead screw, an adjusting ring is rotatably connected to the driving frame, and the adjusting ring is threadedly connected to the first lead screw; cylinders are symmetrically arranged at front and rear positions on the driving frame, the cylinders are fixedly connected to the first fixing frame, and the telescopic end of the cylinder is fixedly connected to the driving frame; a second fixing frame is fixedly connected to the sealing cover, and a reciprocating assembly is provided on the second fixing frame, the reciprocating assembly being used to drive the two sliding frames to move up and down reciprocally when the driving frame moves relative to the first piston.

[0011] Preferably, the lead screw has a vertical groove and the drive frame is slidably connected to the vertical groove on the lead screw; the lead screw has self-locking properties.

[0012] Preferably, the reciprocating assembly includes a slide rod 2 symmetrically fixed at the left and right positions of the piston 1, the slide rod 2 passing through the piston 2 and being slidably connected to the piston 2 in a sealed manner; a lead screw 2 is rotatably connected to the upper end of the slide rod 2, the lead screw 2 passing through the drive frame and being threadedly connected to the drive frame, the lead screw 2 not having self-locking property and having a transmission unit at the upper end of the lead screw 2, the transmission unit being used to drive the slide frame to slide up and down when the lead screw 2 rotates.

[0013] Preferably, the transmission unit includes a sliding plate vertically slidably connected to a fixed frame two, with pulleys rotatably connected to both the left and right sides of the sliding plate, and a belt drivingly connecting the two pulleys; a lead screw two is fixedly connected to one of the pulleys, and a telescopic shaft is fixedly connected to the bottom end of the other pulley; a bevel gear one is fixedly connected to the bottom end of the telescopic shaft, a bevel gear two meshes with the bevel gear one, and a turntable is fixedly connected to the bevel gear two; both bevel gear one and bevel gear two are rotatably connected to the fixed frame; a connecting rod is rotatably connected to the upper edge of the turntable, and the bottom end of the connecting rod is rotatably connected to the sliding frame.

[0014] Preferably, the air extraction assembly includes an air extraction pump installed on the outer surface of the reactor, the air extraction pump being connected to the inner cavity of the reactor and the air outlet end of the air extraction pump being fixedly connected to an air pipe; a stirring rod is installed inside the reactor.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves precise closed-loop control and maximizes resource utilization of the reaction process: By integrating a highly sensitive pH meter and drive components, a real-time feedback control system is constructed. The system intelligently judges the consumption of alkali solution based on real-time changes in pH during the reaction process and automatically and quantitatively initiates replenishment. This "monitoring-feedback-execution" closed-loop control mode ensures that alkali solution is always added in a manner closest to the stoichiometric ratio, fundamentally avoiding the problems of excessive or insufficient alkali solution. This not only significantly improves the leaching recovery rate of aluminum resources and ensures the thoroughness of harmless treatment, but also greatly saves reagent costs, reduces the burden on subsequent processes, and achieves a balance between economic efficiency and environmental protection.

[0016] Significantly improved reaction safety and mixing mass transfer efficiency: This invention, through "small-volume, multiple" quantitative liquid injection and a swing-type injection pipe design, disperses the traditionally instantaneous and violently exhaling reaction into multiple controllable, mild reaction stages. Combined with a continuously operating vacuum assembly maintaining a slight negative pressure within the reactor, the generated hydrogen and ammonia gases can be removed promptly and smoothly, effectively suppressing the risks of foam formation, sudden pressure rises, and gas escape, thus greatly improving operational safety. Simultaneously, the swing-type injection pipe acts like a dynamically distributed "nozzle," allowing the alkali solution to contact the reaction slurry in a more dispersed manner. Combined with the synergistic effect of the stirring rod, this greatly enhances the mixing and mass transfer process between the liquid and solid phases, enabling the pH value of the reaction system to rise rapidly and uniformly, thereby shortening the time required for the reaction to reach equilibrium and improving the overall processing efficiency of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention (where x, y, and z represent the front, right, and top directions, respectively). Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a schematic diagram of the disassembled structure of the present invention; Figure 4 This is a further structural breakdown diagram of the present invention; Figure 5 This is a schematic diagram of the driving component in this invention; Figure 6 This is a schematic diagram of the liquid injection assembly in this invention; Figure 7 This is a second-view structural schematic diagram of the injection assembly in this invention; Figure 8 for Figure 7 A magnified structural diagram of A in the middle; Figure 9 for Figure 7 A magnified structural diagram of B in the diagram; Figure 10This is a schematic diagram of the liquid injection process of the liquid injection component in this invention; Figure 11 This is a schematic diagram of the stirring rod in this invention.

[0018] The attached diagram lists the components represented by each number as follows: 1. Reactor; 2. Injection cylinder; 3. Sealing cap; 4. Sealing cylinder; 5. Injection pipe; 6. pH meter; 7. Piston 1; 8. Piston 2; 9. One-way valve; 10. Connecting pipe; 11. Slide rod 1; 12. Limiting block; 13. Spring 1; 14. Collar; 15. Sliding frame; 16. Drive block 1; 17. Drive block 2; 18. Fixing frame 1; 19. Lead screw 1; 20. Drive frame; 21. Adjusting ring; 22. Cylinder; 23. Fixing frame 2; 24. Slide rod 2; 25. Lead screw 2; 26. Sliding plate; 27. Pulley; 28. Belt; 29. ​​Telescopic shaft; 30. Bevel gear 1; 31. Bevel gear 2; 32. Turntable; 33. Connecting rod; 34. Stirring rod; 35. Vacuum pump; 36. Gas pipe. Detailed Implementation

[0019] Please see Figure 1-11 The present invention provides a technical solution: a wet harmless treatment device for aluminum ash slag and a co-recycling device for aluminum resources, including a reaction vessel 1 and a liquid injection cylinder 2. The liquid injection cylinder 2 is set on a sealing cover 3 on the reaction vessel 1. A sealing cylinder 4 is installed on the sealing cover 3. Multiple liquid injection pipes 5 are provided on the bottom part of the sealing cylinder 4 located on the sealing cover 3. The sealing cylinder 4 is equipped with a liquid injection assembly, which is used to inject the alkaline liquid in the liquid injection cylinder 2 into the reaction vessel 1 multiple times in a quantitative manner through multiple liquid injection pipes 5; The bottom of the sealing cylinder 4 is equipped with a swinging component, which is used to swing each injection tube 5 to promote the uniform injection of alkaline liquid into the reaction vessel 1 and quickly increase the pH value of the liquid in the reaction vessel 1. The sealing cap 3 is equipped with a drive assembly, which is used to drive the liquid injection assembly and the swing assembly to operate simultaneously; The reactor 1 is equipped with a gas extraction component, which is used to continuously extract the gas inside the reactor 1 and keep the reactor 1 under negative pressure. A pH meter 6 is installed on the reactor 1. The pH meter 6 is used to detect the pH value of the liquid in the reactor 1 in real time and control the start and stop of the drive component according to the detection result. During operation, the washed aluminum slag is placed into the reactor 1, and then the sealing cover 3 is closed to ensure that the reactor 1 is in a sealed environment. Then the drive component can be started. The drive component drives the liquid injection component to inject the alkaline solution in the liquid injection pipe 5 into the reactor 1 to react with the aluminum slag. After injecting a certain amount of alkaline solution (not enough to completely absorb the aluminum element), the drive component is stopped. During the reaction, a large number of bubbles are generated. Metallic aluminum reacts with the alkali to produce hydrogen gas. AlN is stably and continuously hydrolyzed under alkaline conditions to produce a large amount of ammonia gas. At the same time, the pH value of the reaction system remains stable at the set high point for a long time. At this time, the gas extraction component is activated to extract the gas generated in the reaction vessel 1. At the same time, the reaction vessel 1 is under negative pressure, which can effectively eliminate bubbles. After a period of reaction, when the pH value of the solution in the reaction vessel 1 is lower than the normal value by the pH value detector 6, it indicates that the alkaline solution has been consumed in large quantities and is insufficient to continue reacting with the aluminum slag. At this time, the pH value detector 6 controls the drive component to run again, and the drive component drives the liquid injection component to run. The liquid injection component then injects the alkaline solution in the liquid injection cylinder 2 into the reaction vessel 1 in multiple quantitative injections through multiple liquid injection pipes 5. Simultaneously, the drive component drives the oscillating component, which in turn drives multiple injection pipes 5 to oscillate. The injection pipes 5 continuously oscillate while injecting the solution, thus uniformly injecting the alkaline solution into the reactor 1. This allows for rapid mixing with the solution in the reactor 1, raising the pH value of the solution in the shortest possible time. This improves the aluminum slag recovery efficiency while ensuring that the pH detector 6 accurately detects the pH value of the solution in the reactor 1. When the pH detector 6 detects that the pH value of the solution in the reactor 1 has risen to a preset range, the drive component stops operating. This cycle repeats to ensure that the aluminum in the aluminum slag in the reactor 1 is completely absorbed and recovered. When the alkaline solution is added for the last time, if the pH value in the reactor 1 remains within the preset range for an extended period and no longer decreases, it indicates that the reaction in the reactor 1 has ended. This invention ensures that the amount of alkaline solution required after the aluminum slag has completely reacted is just right by adding alkaline solution in small amounts multiple times, and by using a pH meter 6 to monitor the pH value of the solution in the reaction vessel 1 in real time. This effectively prevents the overuse of alkaline solution and minimizes waste.

[0020] See Figure 6-10 As a further embodiment of the present invention, the injection assembly includes a piston 7 and a piston 8 slidably disposed within the sealing cylinder 4; the injection cylinder 2 is connected to the sealing cylinder 4 and a one-way valve 9 is provided at the connection between the injection cylinder 2 and the sealing cylinder 4; a connecting pipe 10 is provided between the injection pipe 5 and the sealing cylinder 4, the connecting pipe 10 is connected to the sealing cylinder 4 and rotatably connected to the injection pipe 5; a limiting unit is provided at the bottom of the piston 7, the limiting unit is used to limit the piston 7 to its maximum height and minimum height, and its upper surface is located below the inlet of the one-way valve 9 and the outlet of the connecting pipe 10, respectively; The limiting unit includes a slide rod 11 fixedly connected to the bottom end of the piston 7. The slide rod 11 is slidably connected to the sealing cylinder 4 and a limiting block 12 is fixedly connected to the slide rod 11. The limiting block 12 is located at the bottom of the sealing cylinder 4. A spring 13 is sleeved on the slide rod 11. The upper and lower ends of the spring 13 are fixedly connected to the sealing cylinder 4 and the slide rod 11, respectively. During operation, when an alkaline solution needs to be injected into the reactor 1, the piston 28 is driven upward by the drive assembly (piston 17 and piston 28 are initially in contact with each other). When piston 28 moves upward, it drives piston 17 to move upward, and piston 17 drives the slide rod and the limiting block 12 to move upward. When the limiting block 12 moves upward to contact the bottom of the sealing cylinder 4, piston 17 moves to the highest position. As piston 28 continues to move upward, piston 28 cooperates with piston 17 to draw the alkaline solution in the injection cylinder 2 into the sealing cylinder 4. When piston 28 moves upward to the preset position, a preset amount of alkaline solution is drawn into the sealing cylinder 4. When piston 28 moves downward, it pushes piston 17 downward through the alkaline solution. When piston 17 moves to the lowest position in the sealing cylinder 4, the outlet of the connecting pipe 10 is exactly between piston 17 and piston 28. As piston 28 continues to move downward, the alkaline solution in the sealing cylinder 4 is squeezed into multiple connecting pipes 10, and the solution in the connecting pipes 10 is discharged through the injection pipe 5.

[0021] See Figure 6-8 As a further embodiment of the present invention, the swing assembly includes a collar 14 sleeved on the bottom side of the sealing cylinder 4, and sliding frames 15 are symmetrically fixedly connected to the collar 14 at the left and right positions. The sliding frames 15 are slidably connected to the sealing cap 3. Multiple drive blocks 16 are fixedly connected to the collar 14, and the number of drive blocks 16 is equal to the number of injection tubes 5. Drive blocks 2 17 are fixedly connected to the injection tubes 5, and the multiple drive blocks 2 17 are respectively clearance-fitted with the multiple drive blocks 16. Drive block 16 is a horizontally arranged "U" shape; drive block 2 17 is a vertically arranged shaft that connects to the injection tube 10 opposite to the injection tube 5, and the part of drive block 2 17 that mates with drive block 10 is a round rod. During operation, as piston 28 moves downward to inject alkaline solution into reactor 1, the sliding frames 15 on both sides are driven to slide up and down repeatedly by the drive assembly. The two sliding frames 15 drive the collar 14 to move up and down, and the collar 14 drives the multiple drive blocks 16 connected to it to move up and down. When drive block 16 moves upward, drive block 16 lifts drive block 2 17 through its bottom part, and drive block 2 17 drives the injection pipe 5 connected to it to rotate upward. When drive block 16 moves downward, the upper part of drive block 16 presses drive block 2 17 downward, and drive block 2 17 drives the injection pipe 5 connected to it to rotate downward. The up and down movement of drive block 2 17 in conjunction with drive block 1 16 can achieve the effect of driving injection pipe 5 to swing up and down.

[0022] See Figure 4-6 As a further embodiment of the present invention, the drive assembly includes a fixing frame 18 fixed on the sealing cover 3, and the injection cylinder 2 fixedly connected to the fixing frame 18; a lead screw 19 is fixedly connected to the upper end of the piston 2 8, a drive frame 20 is sleeved on the lead screw 19, an adjusting ring 21 is rotatably connected to the drive frame 20, and the adjusting ring 21 is threadedly connected to the lead screw 19; cylinders 22 are symmetrically arranged at the front and rear positions on the drive frame 20, the cylinders 22 are fixedly connected to the fixing frame 18, and the telescopic end of the cylinders 22 is fixedly connected to the drive frame 20; a fixing frame 23 is fixedly connected to the sealing cover 3, and a reciprocating assembly is provided on the fixing frame 23. The reciprocating assembly is used to drive the two sliding frames 15 to move up and down reciprocally when the drive frame 20 moves relative to the piston 1 7. The lead screw 19 has a vertical groove and the drive frame 20 is slidably connected to the vertical groove on the lead screw 19; the lead screw 19 has self-locking properties; During operation, when it is necessary to drive piston 28 to move upward, the cylinders 22 on both the front and rear sides are activated to drive the drive frame 20 to move upward. The drive frame 20 then drives the lead screw 19 to move upward via the adjusting ring 21, and the lead screw 19 drives piston 28 to move upward. By rotating the adjusting ring 21, the lead screw 19 can be moved up and down relative to the drive frame 20. When the lead screw 19 drives piston 28 to move downward, the distance between piston 17 and piston 28 decreases, thereby reducing the amount of alkaline solution drawn by piston 28 each time. Conversely, the amount of alkaline solution drawn by piston 28 each time can be increased.

[0023] See Figure 3-5As a further embodiment of the present invention, the reciprocating assembly includes a slide rod 24 symmetrically fixed at the left and right positions of the piston 1 7. The slide rod 24 passes through the piston 2 8 and is slidably connected to the piston 2 8. A lead screw 25 is rotatably connected to the upper end of the slide rod 24. The lead screw 25 passes through the drive frame 20 and is threadedly connected to the drive frame 20. The lead screw 25 does not have self-locking properties and a transmission unit is provided at the upper end of the lead screw 25. The transmission unit is used to drive the slide frame 15 to slide up and down when the lead screw 25 rotates. The transmission unit includes a sliding plate 26 vertically slidably connected to a fixed frame 23. Pulleys 27 are rotatably connected to both the left and right sides of the sliding plate 26, and a belt 28 connects the two pulleys 27. A lead screw 25 is fixedly connected to one of the pulleys 27, and a telescopic shaft 29 is fixedly connected to the bottom of the other pulley 27. A bevel gear 30 is fixedly connected to the bottom of the telescopic shaft 29, and a bevel gear 31 meshes with the bevel gear 30. A turntable 32 is fixedly connected to the bevel gear 31. Both the bevel gear 30 and the bevel gear 31 are rotatably connected to the fixed frame. A connecting rod 33 is rotatably connected to the upper edge of the turntable 32, and the bottom of the connecting rod 33 is rotatably connected to the sliding frame 15. During operation, when cylinder 22 drives piston 28 to move upward, piston 28 drives piston 17 to move upward. When piston 17 reaches its highest position, it stops moving. Piston 28 continues to move upward and draws alkaline solution from injection cylinder 2. After piston 28 reaches its highest position, cylinder 22 begins to drive piston 28 to move downward. Piston 28 pushes piston 17 downward synchronously through the alkaline solution. When piston 17 is pushed to its lowest position, it stops moving. As cylinder 22 drives drive frame 20 to continue moving downward, drive frame 20 begins to move downward relative to lead screw 25. Lead screw 25 then drives pulley 27 connected to it to rotate. This pulley 27 drives another pulley 27 to rotate through belt 28. The other pulley 27 drives bevel gear 30 to rotate through telescopic shaft 29. Bevel gear 30 drives turntable 32 to rotate through bevel gear 31. When turntable 32 rotates, it drives sliding frame 15 to move up and down reciprocally through connecting rod 33.

[0024] See Figure 11 As a further embodiment of the present invention, the air extraction assembly includes an air extraction pump 35 installed on the outer surface of the reactor 1, the air extraction pump 35 being connected to the inner cavity of the reactor 1 and the air outlet end of the air extraction pump 35 being fixedly connected to an air pipe 36; a stirring rod 34 is installed inside the reactor 1. During operation, when the alkaline solution in the reactor 1 reacts with the aluminum slag to generate a large amount of gas and bubbles, the gas can be extracted by starting the vacuum pump 35 and then pumped into the treatment equipment through the gas pipe 36 for harmless treatment; the vacuum pump 35 can eliminate bubbles by reducing the gas pressure in the reactor 1 when extracting the gas. Activating the stirring rod 34 while the alkaline solution reacts with the aluminum slag can effectively enhance the reaction effect.

Claims

1. A wet process for harmless treatment of aluminum ash slag and a co-process recovery device for aluminum resources, comprising a reaction vessel (1) and a liquid injection cylinder (2), characterized in that: The injection cylinder (2) is set on the sealing cover (3) on the reactor (1), and the sealing cover (3) is equipped with a sealing cylinder (4). The sealing cylinder (4) is provided with multiple injection tubes (5) on the bottom side of the sealing cover (3). The sealing cylinder (4) is equipped with a liquid injection assembly, which is used to inject the alkaline liquid in the liquid injection cylinder (2) into the reaction vessel (1) multiple times through multiple liquid injection pipes (5); The bottom of the sealing cylinder (4) is provided with a swinging component, which is used to swing each injection tube (5) to promote the uniform injection of alkaline liquid into the reactor (1) and quickly increase the pH value of the liquid in the reactor (1). The sealing cap (3) is provided with a driving component, which is used to drive the liquid injection component and the swing component to operate simultaneously; The reactor (1) is equipped with a gas extraction component, which is used to continuously extract gas from the reactor (1) and keep the reactor (1) under negative pressure. A pH meter (6) is installed on the reactor (1). The pH meter (6) is used to detect the pH value of the liquid in the reactor (1) in real time and control the start and stop of the drive component according to the detection result.

2. The wet process harmless treatment of aluminum ash slag and co-recycling of aluminum resources according to claim 1, characterized in that: The injection assembly includes a piston 1 (7) and a piston 2 (8) slidably disposed inside the sealing cylinder (4); the injection cylinder (2) is connected to the sealing cylinder (4) and a one-way valve (9) is provided at the connection between the injection cylinder (2) and the sealing cylinder (4); a connecting pipe (10) is provided between the injection pipe (5) and the sealing cylinder (4), the connecting pipe (10) is connected to the sealing cylinder (4) and rotatably connected to the injection pipe (5); a limiting unit is provided at the bottom of the piston 1 (7), the limiting unit is used to limit the maximum height and minimum height of the piston 1 (7), and its upper surface is located below the inlet of the one-way valve (9) and the outlet of the connecting pipe (10), respectively.

3. The wet process harmless treatment of aluminum ash slag and co-recycling of aluminum resources according to claim 2, characterized in that: The limiting unit includes a slide rod (11) fixedly connected to the bottom end of the piston (7). The slide rod (11) is slidably connected to the sealing cylinder (4), and a limiting block (12) is fixedly connected to the slide rod (11). The limiting block (12) is located at the bottom of the sealing cylinder (4). A spring (13) is sleeved on the slide rod (11). The upper and lower ends of the spring (13) are fixedly connected to the sealing cylinder (4) and the slide rod (11) respectively.

4. The wet process harmless treatment of aluminum ash slag and co-recycling device for aluminum resources according to claim 2, characterized in that: The swing assembly includes a collar (14) sleeved on the bottom side of the sealing cylinder (4), and sliding frames (15) are symmetrically fixedly connected to the collar (14) at the left and right positions. The sliding frames (15) are slidably connected to the sealing cover (3). Multiple drive blocks (16) are fixedly connected to the collar (14), and the number of drive blocks (16) is equal to the number of injection tubes (5). Drive blocks (17) are fixedly connected to the injection tubes (5), and multiple drive blocks (17) are respectively clearance-fitted with multiple drive blocks (16).

5. The wet process harmless treatment of aluminum ash slag and co-recycling of aluminum resources according to claim 4, characterized in that: The first drive block (16) is a horizontally arranged "U" shape; the second drive block (17) is a vertically arranged shaft connecting the injection tube (5) to the tube (10), and the part of the second drive block (17) that cooperates with the drive block is a round rod.

6. The wet process harmless treatment of aluminum ash slag and co-recycling device for aluminum resources according to claim 4, characterized in that: The drive assembly includes a first fixing frame (18) fixed on the sealing cover (3), and the injection cylinder (2) is fixedly connected to the first fixing frame (18); the upper end of the second piston (8) is fixedly connected to a first lead screw (19), a drive frame (20) is sleeved on the first lead screw (19), an adjusting ring (21) is rotatably connected on the drive frame (20), and the adjusting ring (21) is threadedly connected to the first lead screw (19); cylinders (22) are symmetrically arranged in the front and rear positions on the drive frame (20), the cylinders (22) are fixedly connected to the first fixing frame (18), and the telescopic end of the cylinders (22) is fixedly connected to the drive frame (20); a second fixing frame (23) is fixedly connected on the sealing cover (3), and a reciprocating assembly is provided on the second fixing frame (23), the reciprocating assembly is used to drive two sliding frames (15) to move up and down reciprocally when the drive frame (20) moves relative to the first piston (7).

7. The wet process harmless treatment of aluminum ash slag and co-recycling device for aluminum resources according to claim 6, characterized in that: The lead screw (19) is provided with a vertical groove and the drive frame (20) is slidably connected to the vertical groove on the lead screw (19); the lead screw (19) has self-locking properties.

8. The wet process harmless treatment of aluminum ash slag and co-recycling device for aluminum resources according to claim 6, characterized in that: The reciprocating assembly includes a slide rod 2 (24) symmetrically fixed at the left and right positions of piston 1 (7). The slide rod 2 (24) passes through piston 2 (8) and is slidably connected to piston 2 (8). A lead screw 2 (25) is rotatably connected to the upper end of the slide rod 2 (24). The lead screw 2 (25) passes through drive frame (20) and is threadedly connected to drive frame (20). The lead screw 2 (25) does not have self-locking properties and a transmission unit is provided at the upper end of the lead screw 2 (25). The transmission unit is used to drive the slide frame (15) to slide up and down when the lead screw 2 (25) rotates.

9. The wet process harmless treatment of aluminum ash slag and co-recycling device for aluminum resources according to claim 8, characterized in that: The transmission unit includes a sliding plate (26) vertically slidably connected to a fixed frame (23). Pulleys (27) are rotatably connected to both the left and right sides of the sliding plate (26). A belt (28) is connected between the two pulleys (27). The lead screw (25) is fixedly connected to one of the pulleys (27). A telescopic shaft (29) is fixedly connected to the bottom end of the other pulley (27). A bevel gear (30) is fixedly connected to the bottom end of the telescopic shaft (29). A bevel gear (31) meshes with the bevel gear (30). A turntable (32) is fixedly connected to the bevel gear (31). Both the bevel gear (30) and the bevel gear (31) are rotatably connected to the fixed frame. A connecting rod (33) is rotatably connected to the upper edge of the turntable (32). The bottom end of the connecting rod (33) is rotatably connected to the sliding frame (15).

10. The wet process harmless treatment of aluminum ash slag and co-recycling device for aluminum resources according to claim 1, characterized in that: The air extraction assembly includes an air pump (35) installed on the outer surface of the reactor (1), the air pump (35) is connected to the inner cavity of the reactor (1) and the air outlet of the air pump (35) is fixedly connected to an air pipe (36); a stirring rod (34) is installed inside the reactor (1).

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