A double-impeller furnace refining car

Abstract

The application relates to a double-impeller in-furnace refining vehicle and relates to the technical field of liquid aluminum refining. The refining vehicle comprises a caterpillar type vehicle body and a refining device. The refining device comprises an adjusting seat arranged on the caterpillar type vehicle body through a rotating shaft, a rotating mechanism for driving the adjusting seat to rotate, two stirring rods uniformly provided with a plurality of discharge holes, a driving mechanism for driving the two stirring rods to rotate simultaneously, a baffle arranged on the caterpillar type vehicle body and abutting against a furnace body and used for plugging a furnace mouth, and a material conveying mechanism communicated with the discharge holes. The refining vehicle is integrally arranged, multiple functions such as stirring, material conveying and moving are integrated with each other, heat preservation is directly carried out through the furnace body, the refining agent and the inert gas are simultaneously output along with stirring, and the refining agent and the inert gas mixture are pushed and stirred at high speed by the stirring rods, so that the refining agent can be fully and uniformly dispersed in the liquid aluminum, and the refining efficiency and quality are improved.

Description

Technical Field

[0001] This application relates to the technical field of aluminum liquid refining, and in particular to a double-impeller in-furnace refining car. Background Technology

[0002] Aluminum and aluminum alloys are widely used in our daily life and industrial production. Many parts use aluminum or aluminum alloys as raw materials. During manufacturing, the raw materials are usually placed in a furnace to melt into molten aluminum, which generally requires refining.

[0003] During refining, refining agents and inert gases need to be introduced into the molten aluminum simultaneously. The molten aluminum is then stirred by a stirring structure to mix the gas (inert gas), liquid (molten aluminum), and solid (refining agent) to remove impurities from the molten aluminum. In existing technologies, the molten aluminum in the furnace is generally exported to a refining device for refining. Therefore, the refining device requires additional heating for heat preservation, and the transportation of molten aluminum is also very troublesome. Furthermore, it is difficult to evenly distribute the refining agents and inert gases in the molten aluminum, thereby reducing refining efficiency and quality. Summary of the Invention

[0004] To improve refining efficiency and quality, this application provides a double-impeller in-furnace refining car that eliminates the need to output the molten aluminum from the furnace body, allowing it to be directly kept warm through the furnace body. Furthermore, the refining agent and inert gas are output simultaneously with the stirring, resulting in faster and better mixing of the gas, liquid, and solid phases, thus improving refining efficiency and quality.

[0005] This application provides a double-impeller in-furnace refining car, which adopts the following technical solution: A double-impeller in-furnace refining car includes a tracked vehicle body and a refining device, wherein the refining device includes: The adjustment seat is rotatably mounted on the tracked vehicle body via a rotating shaft; A rotating mechanism is used to drive the adjusting seat to rotate; Two stirring rods are rotatably mounted on the adjusting seat, and multiple discharge holes are evenly distributed on them; The drive mechanism is used to drive the two stirring rods to rotate simultaneously in opposite directions; A baffle is mounted on the tracked vehicle body and abuts against the furnace body, and is used to seal the furnace opening; both of the stirring rods pass through the baffle and are connected to the baffle through a support follower assembly, which is used to support the stirring rods and rotate with them. The material conveying mechanism is connected to the discharge port, and allows the inert gas and refining agent to be premixed before being output; When the tracked vehicle moves, it drives two stirring rods to a horizontal position via an adjusting seat. When refining molten aluminum, the tracked vehicle drives two stirring rods through the furnace opening and into the furnace body. The rotating mechanism is activated to drive the stirring rods to rotate downwards and immerse them in the molten aluminum. The driving mechanism is activated to drive the two stirring rods to rotate and stir. At the same time, the material conveying mechanism is activated to premix the inert gas and refining agent and output them through multiple discharge holes.

[0006] By adopting the above technical solution, when the refining car moves, the two stirring rods are in a horizontal state, which can improve the stability during the movement; the tracked car body is close to the furnace body, so that the two stirring rods extend horizontally through the furnace opening into the furnace body; the rotating mechanism drives the adjusting seat to swing downward around the rotating axis, so that the stirring rods are immersed in the aluminum liquid, and the baffle is pressed against the furnace body to seal the furnace opening.

[0007] The drive mechanism drives two stirring rods to rotate simultaneously in opposite directions. At the same time, the feeding mechanism premixes the refining agent with inert gas and sprays it into the molten aluminum through multiple discharge holes around the body. Under the impetus of the inert gas and centrifugal force, the refining agent can be dispersed faster and better, which can greatly improve the refining effect of the molten aluminum and realize the integration of degassing, slag removal, purification and microstructure control of molten aluminum.

[0008] By integrating multiple functions such as stirring, conveying, and moving through the refining vehicle, the molten aluminum in the furnace can be kept warm directly within the furnace without needing to be discharged from the furnace body. The refining agent and inert gas are discharged simultaneously with the stirring. Under the high-speed rotation and stirring action of the stirring rod, the refining agent can be fully and evenly dispersed in the molten aluminum, and the gas can be broken into tiny bubbles in the molten aluminum. At the same time, the molten aluminum is circulated under the push of the stirring rod, thereby driving the flow of molten aluminum throughout the furnace body to achieve good refining and hydrogen removal effects. This results in uniform composition of molten aluminum and faster and better mixing of the gas, liquid, and solid phases, improving refining efficiency and quality.

[0009] At the same time, the baffle seals the furnace opening, and the supporting follow-up component can rotate with the stirring rod. The supporting follow-up component supports the stirring rod as it passes through, and also works with the baffle to improve the sealing effect of the furnace opening, improve the stability of the stirring rod during operation, and reduce the risk of environmental pollution and injury accidents caused by the overflow of hot gas and molten aluminum in the furnace. In addition, it can maintain the stable temperature in the furnace, further improving the refining quality of molten aluminum.

[0010] The two sets of impellers adopt an angled layout design, effectively expanding the aluminum molten metal circulation coverage area, promoting full-area circulation of aluminum molten metal in the furnace, significantly eliminating dead zones in stirring and refining, shortening the overall refining time, and significantly improving the quality of refining operations. This structure is specifically adapted to the working conditions of large-capacity smelting furnaces, and can improve the problems of low aluminum molten metal flow rate and slow material transfer in large molten pools, further enhancing the equipment's versatility and operational efficiency.

[0011] Optionally, the conveying mechanism includes: Two conveying rings are set on the adjusting seat and rotatably connected to two stirring rods, forming a conveying cavity that communicates with multiple discharge holes; Two input pipes are connected to two delivery rings and communicate with the delivery chamber; they are flexible hoses. The mixing pipe is installed on the tracked vehicle body and is connected to two input pipes; The gas delivery pipe is connected to the mixing pipe and is used to input inert gas; The feeding assembly is connected to the mixing pipe and adds refining agent into the mixing pipe, so that the refining agent and inert gas are premixed and then output through the discharge hole.

[0012] By adopting the above technical solution, inert gas enters the mixing pipe from the gas delivery pipe, and the feeding component quantitatively delivers the refining agent into the mixing pipe. When the inert gas is blown in, it can be pre-mixed with the refining agent. Then, after the inert gas and the refining agent are mixed, they enter the input pipe and the conveying chamber. When the stirring rod rotates, the conveying chamber and the internal channel of the stirring rod are always connected, and the mixture is continuously sprayed out from the discharge hole, which makes the refining agent and inert gas mix faster and more evenly, further improving the refining efficiency and quality of aluminum liquid.

[0013] By having the stirring rod rotate and the feed independent of each other, the rotation of the stirring rod will not interfere with the activity of the refining agent and the inert gas, making the delivery of the refining agent and the inert gas more stable. Furthermore, the pre-mixing of gas and powder is completed in the mixing tube in advance, avoiding the agglomeration and uneven distribution of the refining agent caused by separate feeding, thus improving the consistency of the refining effect and increasing the refining efficiency and quality of the aluminum liquid.

[0014] Optionally, the feeding assembly includes: The hopper is connected to the mixing pipe via a feed pipe; The screw feed rod is rotatably mounted on the feed pipe and is used to add refining agents into the mixing pipe.

[0015] By adopting the above technical solution, the screw feed rod rotates at a uniform speed, pushing the refining agent in the feed pipe axially to the mixing pipe. By adjusting the screw speed, the amount of refining agent added can be precisely controlled. The amount of refining agent added can be precisely adjusted according to the weight of aluminum liquid and refining requirements, avoiding waste or insufficient addition. The screw forced conveying completely solves the problem of easy bridging and clogging of powdered refining agents. It is suitable for refining agents of various particle sizes. The screw rotation is stable, the feeding amount is uniform with small fluctuations, ensuring a stable gas-powder mixing ratio, improving the consistency of refining quality, and further improving refining efficiency and quality.

[0016] Optionally, the baffle plate has a rotating hole and a follower groove centered on the axis of rotation; the support follower assembly includes: The follower plate is slidably mounted on the follower groove and always blocks the rotation hole, and has two through holes; Two sealing rings are snapped onto the inner sidewalls of the two through holes; Two support sleeves are rotatably mounted on the two stirring rods respectively, and pass through the through hole and the sealing ring, so that the sealing ring is pressed against the support sleeve under the action of elasticity to seal.

[0017] By adopting the above technical solution, when the stirring rod swings up and down around the rotating shaft, the follower plate slides synchronously along the arc-shaped follower groove centered on the rotating shaft, always covering the rotating hole; the sealing ring is tightly attached to the outer wall of the support sleeve under the action of elasticity, and adaptively compensates for eccentricity and wear with the rotation and swing of the stirring rod, thereby improving the stability of the stirring rod during the stirring process, improving the mixing effect, and improving refining efficiency and quality.

[0018] Regardless of whether the stirring rod is horizontally retracted, swaying downwards into the liquid, or at any intermediate angle, the follower plate always seals the rotation hole, significantly reducing flue gas leakage at the furnace opening. The support sleeve rotates with the stirring rod, passing through the through hole and sealing ring to achieve a seal. Simultaneously, the rotation of the stirring rod relative to the support sleeve reduces wear on the sealing ring. The follower plate moves along the swing trajectory of the stirring rod, avoiding relative oscillation friction between the sealing ring and the stirring rod, extending the sealing ring's service life by 2-3 times and ensuring a good seal. Furthermore, the follower plate and sealing ring provide central support for the stirring rod, reducing cantilever vibration, lowering the risk of bending deformation, and resulting in smoother operation, further improving refining efficiency and quality.

[0019] Optionally, the rotating mechanism includes: The telescopic component is rotatably mounted on the tracked vehicle body; The rotating column is mounted on the adjusting seat. A rotating ring is mounted on the piston rod of the telescopic component and is rotatably sleeved on the rotating column; The shock-absorbing ring is installed on the inner wall of the rotating ring and is positioned against the rotating column under the action of elasticity, and is used to buffer the vibration of the rotating column.

[0020] By adopting the above technical solution, the expansion joint starts and drives the rotating ring, the anti-vibration ring, and the rotating column to move, thereby causing the adjusting seat to swing around the rotating shaft; the vibration generated by the rotation of the stirring rod is transmitted to the anti-vibration ring through the adjusting seat and the rotating column. The anti-vibration ring absorbs the vibration through elastic deformation, avoiding the vibration from being directly transmitted to the expansion joint, which improves the service life of the expansion joint, reduces noise, and improves refining efficiency and quality.

[0021] Optionally, the drive mechanism includes: Two auxiliary gears are respectively mounted on the two stirring rods and mesh with each other; The driving component and the main gear are mounted on the output shaft of the driving component and mesh with the secondary gear. When the driving component is activated, it drives the two stirring rods to rotate simultaneously in opposite directions.

[0022] By adopting the above technical solution, the driving component starts and drives the main gear to rotate. The rotation of the main gear drives the two auxiliary gears to rotate simultaneously and in opposite directions, thereby realizing that the two stirring rods rotate simultaneously and in opposite directions.

[0023] Optionally, the baffle is provided with a locking mechanism connected to the furnace body, the locking mechanism including: The locking lever is rotatably mounted on the baffle. A connecting component is mounted on an adjusting seat and connected to a locking rod, causing the locking rod to rotate under the driving action of the adjusting seat. When the adjusting seat drives the stirring rod to immerse in molten aluminum, the end of the locking rod away from the rotating part is snapped and installed on the outer wall of the furnace body for positioning. When the adjusting seat drives the stirring rod to rotate to a horizontal state, the locking rod disengages from the outer wall of the furnace body.

[0024] By adopting the above technical solution, the adjusting seat swings downward around the rotating axis, and the locking rod is driven to swing downward through the connecting component, so that the end of the locking rod is snapped into the outer wall of the furnace body; when the adjusting seat retracts upward, the locking rod is pushed upward through the connecting component to automatically disengage from the furnace body.

[0025] The locking action is perfectly synchronized with the downward swing of the stirring rod to allow liquid entry, eliminating the need for additional operations. This allows the refining cart to connect to the furnace body via the baffle, significantly improving the stability of transportation during the refining process and enabling faster and better refining. Furthermore, the horizontal movement of the refining cart, with the locking rod rotating downwards and engaging with the outer wall of the furnace body for positioning, prevents horizontal forces from disengaging the locking rod from the furnace body, thus greatly enhancing the sealing effect of the baffle at the furnace opening. Simultaneously, the purely mechanical linkage structure requires no additional drive components, resulting in a low failure rate, low structural cost, and stability, further improving refining efficiency and quality.

[0026] Optionally, the connection component includes: The movable seat is slidably disposed on the upper surface of the locking rod along the length of the locking rod; Connecting rod one and connecting rod two are both cylindrical and coaxially slidably connected. Connecting rod one is mounted on the adjusting seat, and connecting rod two is rotatably mounted on the moving seat with the rotation direction perpendicular to the rotation direction of the locking rod.

[0027] By adopting the above technical solution, when the adjusting seat rotates and drives the connecting rod one to rotate downwards, the rotation of the connecting rod one drives the connecting rod two and the moving seat to rotate relative to each other, and at the same time drives the moving seat to rotate downwards. The rotation of the moving seat drives the locking rod to rotate downwards. During this process, the connecting rod two and the connecting rod one slide to adapt to the rotation of the moving seat. After the locking rod slides to adapt to the rotation of the locking rod, the position of the moving seat on the locking rod changes. Conversely, when the adjusting seat rotates downwards, the process is the same. Thus, when the adjusting seat and the locking rod rotate in different directions, the adjusting seat and the locking rod can be made to rotate synchronously. The structure is simple and stable, and the refining efficiency and quality are further improved.

[0028] Optionally, the baffle is provided with a resilient insertion mechanism, the insertion mechanism comprising: The plug-in rod is slidably mounted on the baffle, and the locking rod has a positioning groove. An elastic element is connected to the baffle and the plug rod; when the stirring rod is in a horizontal state, the plug rod is inserted into the positioning groove for positioning under the elastic force of the elastic element, or the plug rod is pushed away from the positioning groove after contacting the furnace body, thereby unlocking the locking rod.

[0029] By adopting the above technical solution, the elastic element always applies a forward elastic force to the plug-in rod. When the locking rod is raised to the horizontal position, the positioning groove aligns with the plug-in rod, and the plug-in rod automatically inserts into the positioning groove. When the front end of the plug-in rod contacts the furnace body, the furnace body applies a backward pushing force to the plug-in rod, overcoming the elastic force and causing the plug-in rod to exit the positioning groove, thus completing the unlocking. The locking rod then swings down with the adjusting seat and engages with the furnace body, preventing the locking rod from swaying and sagging during transportation. This improves the stability of the refining car during operation and further enhances refining efficiency and quality.

[0030] The adjustment seat, stirring rod, and locking rod are fixed in the transportation state, preventing accidental sagging due to bumps or collisions, thus improving the stability of the refining car during operation; at the same time, manual unlocking is not required, as the baffle automatically unlocks when it approaches the furnace body, simplifying the operation process; the purely mechanical triggering structure has high operating efficiency and stability, further improving refining efficiency and quality.

[0031] Optionally, the baffle is provided with an annular ring that surrounds the furnace opening and presses against the furnace body for sealing.

[0032] By adopting the above technical solution, when the baffle is pressed tightly against the furnace body along with the vehicle body, the annular ring is uniformly compressed, filling the gap between the furnace opening end face and the baffle, forming a full circumferential seal; the elasticity of the annular ring can adapt to the flatness error and manufacturing tolerance of the furnace opening end face.

[0033] In summary, this application includes at least one of the following beneficial technical effects: 1. By integrating the refining vehicle into a single unit, multiple functions such as stirring, conveying, and moving are integrated. There is no need to output the molten aluminum from the furnace body; the aluminum is directly kept warm through the furnace body. The refining agent and inert gas are output simultaneously with the stirring. Under the high-speed rotation and stirring action of the stirring rod, the refining agent can be fully and evenly dispersed in the molten aluminum, and the gas can be broken into tiny bubbles in the molten aluminum. At the same time, the molten aluminum is circulated under the push of the stirring rod, thereby driving the flow of molten aluminum throughout the furnace body, improving refining efficiency and quality.

[0034] 2. The furnace opening is sealed by a baffle, and the supporting follower component can rotate with the stirring rod. The supporting follower component supports the stirring rod as it passes through, and at the same time, it works with the baffle to improve the sealing effect of the furnace opening, improve the stability of the stirring rod during operation, and reduce the risk of environmental pollution and injury accidents caused by the overflow of hot gas and molten aluminum in the furnace. In addition, it can maintain the temperature stability in the furnace, further improving the refining efficiency and quality of molten aluminum.

[0035] 3. The locking action is completely synchronized with the downward swing of the stirring rod to introduce liquid, requiring no additional operation. This allows the refining cart to connect to the furnace body via the baffle, greatly improving the stability of transportation during the refining process and enabling faster and better refining. Furthermore, the downward rotation of the locking rod engages with the outer wall of the furnace body for positioning, significantly enhancing the sealing effect of the baffle on the furnace opening. Simultaneously, the purely mechanical linkage structure requires no additional drive components, resulting in a low failure rate, low structural cost, and stability, further improving refining efficiency and quality.

[0036] 4. The adjustment seat, stirring rod, and locking rod are fixed in the transportation state, preventing accidental sagging due to bumps or collisions, thus improving the stability of the refining car during operation; at the same time, manual unlocking is not required, as the baffle automatically unlocks when it approaches the furnace body, simplifying the operation process; the purely mechanical triggering structure has high operating efficiency and stability, further improving refining efficiency and quality. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the refining car and furnace structure; Figure 2 This is a structural schematic diagram of a refining vehicle; Figure 3 This is a structural schematic diagram of the rotating mechanism and drive mechanism in the refining car; Figure 4 This is a structural schematic diagram of the stirring rod and support follow-up assembly in the refining car, with a partial cross-sectional view of the baffle. Figure 5 This is a structural schematic diagram of the material conveying mechanism in the refining car, with a partial cross-sectional view of the hopper; Figure 6 This is a structural diagram of the insertion mechanism, insertion mechanism and connecting components in the refining car.

[0038] Reference numerals: 1. Tracked vehicle body; 11. Shaft; 12. Furnace body; 13. Furnace opening; 2. Refining unit; 21. Adjusting seat; 22. Stirring rod; 23. Baffle; 24. Stirring blade; 25. Rotating hole; 26. Discharge hole; 3. Rotating mechanism; 31. Telescopic component; 32. Rotating column; 33. Rotating ring; 4. Drive mechanism; 41. Secondary gear; 42. Drive component; 43. Main gear; 44. Protective cover; 5. Conveying mechanism; 51. Conveying ring; 52. Input pipe; 53. Mixing pipe; 54. Gas supply pipe; 55. Feeding assembly; 56. Hopper 561. Feed pipe; 57. Spiral feed rod; 58. Rod body; 59. Spiral part; 6. Support follower assembly; 61. Follower plate; 62. Follower groove; 63. Support sleeve; 7. Locking mechanism; 71. Locking rod; 73. Fixing block; 74. Positioning groove; 8. Insertion mechanism; 81. Insertion rod; 82. Elastic element; 83. Sliding part; 84. Connecting part; 85. Insertion part; 86. Fixing plate; 87. Bearing plate; 9. Connecting assembly; 91. Moving seat; 911. Moving groove; 92. Connecting rod one; 93. Connecting rod two; 94. Mounting rod. Detailed Implementation

[0039] The following provides a further detailed description of this application.

[0040] This application discloses a double-impeller in-furnace refining car.

[0041] Reference Figure 1 The double impeller furnace refining car includes a tracked car body 1 and a refining device 2. The tracked car body 1 moves along its own length direction. The refining device 2 is set on the tracked car body 1 and is used to extend through the furnace opening 13 into the molten aluminum and to stir the molten aluminum. At the same time, refining agent and inert gas are introduced to achieve the refining of molten aluminum.

[0042] Reference Figures 1-3The refining device 2 includes an adjusting seat 21, a rotating mechanism 3, two stirring rods 22, a driving mechanism 4, a baffle 23, and a conveying mechanism 5. A horizontally positioned rotating shaft 11 is rotatably mounted on the upper surface of the tracked vehicle body 1. One end of the adjusting seat 21 is fixedly mounted on the rotating shaft 11, and the other end faces the furnace body 12. When the adjusting seat 21 is horizontal, it is parallel to the length direction of the tracked vehicle body 1. The rotating mechanism 3 is used to drive the adjusting seat 21 to rotate. Multiple rotating mechanisms 3 are spaced apart and located on both sides of the adjusting seat 21. The rotating mechanism 3 includes a telescopic component 31, a rotating column 32, a rotating ring 33, and a shock-absorbing ring. The telescopic component 31 is an electric push rod, which is rotatably mounted on the upper surface of the tracked vehicle body 1. The rotating column 32 is fixedly mounted on the side wall of the adjusting seat 21 and is in a horizontal position.

[0043] The rotating ring 33 is fixedly installed on the piston rod of the telescopic component 31, and its inner diameter is larger than the outer diameter of the rotating column 32. It is sleeved on the rotating column 32. A rotating groove is coaxially opened on the inner side wall of the rotating ring 33. The anti-vibration ring is fixedly installed on the rotating groove, and the anti-vibration ring presses against the side wall of the rotating column 32 under the action of elasticity. When the telescopic component 31 is activated, it drives the rotating ring 33, the anti-vibration ring, the rotating column 32, and the adjusting seat 21 to rotate simultaneously, thereby driving the adjusting seat 21 to rotate for adjusting the angle. After adjustment, the anti-vibration ring can buffer the vibration of the adjusting seat 21.

[0044] Two agitator rods 22 are spaced apart along the width of the tracked vehicle body 1. The two agitator rods 22 extend through the adjusting seat 21 to both sides of the adjusting seat 21 and are rotatably connected to it. Rotation of the adjusting seat 21 drives the two agitator rods 22 to rotate simultaneously around the rotating shaft 11. Simultaneously, the two agitator rods 22 are tilted, such that the distance between the ends of the two agitator rods 22 closest to the rotating shaft 11 is greater than the distance between the other ends. When the refining vehicle is not in use or is in a moving state, the adjusting seat 21 and the two agitator rods 22 are simultaneously in a horizontal state. At this time, the length direction of the adjusting seat 21 is parallel to the axis of the two agitator rods 22, and the ends of the two agitator rods 22 away from the rotating shaft 11 extend to the outside of the tracked vehicle body 1 and are equipped with agitator blades 24 for agitation.

[0045] The drive mechanism 4 is used to drive the two stirring rods 22 to rotate simultaneously in opposite directions. The drive mechanism 4 includes two auxiliary gears 41, a drive member 42, and a main gear 43. The two auxiliary gears 41 are keyed to the ends of the two stirring rods 22 near the rotating shaft 11 and mesh with each other. A protective cover 44 covering the two auxiliary gears 41 is fixedly installed on the adjusting seat 21. The drive member 42 is a servo motor. The drive member 42 is fixedly installed on the outer wall of the protective cover 44, and the piston rod of the drive member 42 extends through the protective cover 44 into the protective cover 44. The main gear 43 is keyed to the end of the drive member 42 located inside the protective cover 44, and the main gear 43 meshes with one of the auxiliary gears 41.

[0046] The main gear 43 and the two auxiliary gears 41 are all bevel gears. The drive unit 42 starts to drive the main gear 43 to rotate. The rotation of the main gear 43 drives the auxiliary gear 41 connected to it to rotate. The rotation of the auxiliary gear 41 drives the other auxiliary gear 41 to rotate, thereby realizing that the two stirring rods 22 rotate in opposite directions.

[0047] The baffle 23 is fixedly installed on the upper surface of the tracked vehicle body 1, and the baffle 23 is parallel to the outer wall of the furnace body 12. This facilitates the movement of the tracked vehicle body 1 to drive the baffle 23 to abut against the outer wall of the furnace body 12 for positioning, thereby sealing the furnace opening 13. An arc-shaped annular groove is provided on the side wall of the baffle 23 away from the tracked vehicle body 1. An annular and elastic ring is fixedly installed on the annular groove, so that both the baffle 23 and the annular ring press against the outer wall of the furnace body 12 for sealing, so that the furnace opening 13 is located inside the annular ring, thereby achieving sealing.

[0048] Reference Figure 1 , Figure 2 , Figure 4 The baffle 23 has a rotating hole 25 through which two stirring rods 22 pass. A support follower assembly 6 is provided on the rotating hole 25. The two stirring rods 22 pass through the support follower assembly 6, and the rotation of the two stirring rods 22 drives the support follower assembly 6 to rotate simultaneously. The support follower assembly 6 always blocks the rotating hole 25. Multiple discharge holes 26 are arrayed along the axial direction and around the circumference of the axial direction on the stirring rods 22. The conveying mechanism 5 is connected to the multiple discharge holes 26 and is used to output a mixture of refining agent and inert gas through the multiple discharge holes 26.

[0049] The tracked vehicle 1 moves closer to the furnace body 12. The adjusting seat 21 and the two stirring rods 22 are in a horizontal position, so that the two stirring rods 22 extend through the furnace opening 13 into the furnace body 12 until the baffle 23 abuts against the outer wall of the furnace body 12 for positioning. The baffle 23 and the support follower assembly 6 cooperate to block the furnace opening 13. The adjusting seat 21 rotates to drive the two stirring rods 22 to rotate downwards. The rotation of the two stirring rods 22 drives the support follower assembly 6 to rotate simultaneously, so that the stirring rods 22 and stirring blades 24 are immersed in the aluminum liquid, and also so that multiple discharge holes 26 are immersed in the aluminum liquid. The rotation of the two stirring rods 22 and stirring blades 24 stirs the aluminum liquid, and the conveying mechanism 5 simultaneously outputs a mixture of refining agent and inert gas through multiple discharge holes 26, thereby achieving the refining of the aluminum liquid.

[0050] Reference Figure 2 , Figure 5The material conveying mechanism 5 includes a conveying ring 51, an input pipe 52, a mixing pipe 53, a gas supply pipe 54, and a feeding assembly 55. The conveying ring 51 is fixedly installed on the adjusting seat 21. Two conveying rings 51 are spaced apart. Two stirring rods 22 are rotatably installed on the conveying rings 51. The conveying ring 51 has a conveying cavity that communicates with the discharge hole 26. There are two input pipes 52, which are flexible hoses. The two input pipes 52 are fixedly connected to the outer walls of the two conveying rings 51, and the input pipes 52 communicate with the conveying cavity. The mixing pipe 53 is fixedly installed on the tracked vehicle body 1 and is in a horizontal state. The ends of the two input pipes 52 opposite to the conveying rings 51 are fixedly connected to one end of the mixing pipe 53. The gas supply pipe 54 is fixedly installed on the end of the mixing pipe 53 opposite to the input pipe 52 and is used to input inert gas.

[0051] The feeding assembly 55 is used to add refining agent into the mixing tube 53. When the inert gas is introduced, the refining agent powder is blown to premix it with the inert gas before entering the two input tubes 52. Then the mixture of refining agent and inert gas is introduced into the aluminum liquid through the conveying chamber and multiple discharge holes 26. At the same time, the refining agent and inert gas are removed under centrifugal force, so that the refining agent is more evenly distributed in the aluminum liquid.

[0052] The feeding assembly 55 includes a hopper 56 and a screw feed rod 57. The bottom of the hopper 56 is connected to the mixing pipe 53 via a feed pipe 561. The feed pipe 561 is vertical and its bottom is connected to the mixing pipe 53. The hopper 56 contains refining agent, and its top has an inlet for adding refining agent into the hopper 56, which is covered with a cap. The screw feed rod 57 includes a rod body 58 and a screw part 59. The rod body 58 is rotatably mounted on the hopper. The top of the hopper 56 extends vertically downward into the feed pipe 561 and is coaxially arranged with the feed pipe 561. The spiral part 59 is coaxially arranged on the rod part 58 and extends downward into the feed pipe 561, and abuts against the inner side wall of the feed pipe 561. A motor that drives the rod part 58 to rotate is fixedly installed on the top of the hopper 56. When the motor starts, it drives the spiral feed rod 57 to rotate, so that the refining agent in the hopper 56 is accurately added into the mixing pipe 53 and mixed with the inert gas.

[0053] Reference Figure 2 , Figure 4 , Figure 5 The supporting follower assembly 6 includes a follower plate 61, a sealing ring, and a support sleeve 63. An arc-shaped follower groove 62 is formed on the rotating hole 25 around the axis of the rotating shaft 11, so that the center of the follower groove 62 is located on the axis of the rotating shaft 11. The follower plate 61 is slidably disposed on the follower groove 62 and always blocks the rotating hole 25. Two circular through holes are formed on the follower plate 61, and sealing grooves are formed coaxially on the through holes. The sealing ring is snapped onto the sealing groove.

[0054] Two support sleeves 63 are provided, corresponding to the two stirring rods 22. The support sleeves 63 are coaxially rotatably sleeved on the outer wall of the stirring rods 22, and are snapped onto the through holes, so that the sealing rings are sleeved on the support sleeves 63 to achieve a seal. When the adjusting seat 21 drives the two stirring rods 22 to rotate, the stirring rods 22 drive the follower plate 61 to slide on the follower groove 62. At the same time, when the stirring rods 22 rotate, they rotate relative to the support sleeves 63, so that the follower plate 61 and the baffle 23 cooperate to allow the two stirring rods 22 to pass through, and cooperate to seal the furnace opening 13.

[0055] Reference Figure 1 , Figure 2 , Figure 6 The baffle 23 is provided with a locking mechanism 7 connected to the furnace body 12. There are two locking mechanisms 7, located on both sides of the adjusting seat 21 and at both ends of the baffle 23. The locking mechanism 7 includes a locking rod 71 and a connecting component 9. The locking rod 71 is rotatably mounted on the baffle 23, and the end away from the rotation extends to the outside of the baffle 23. A fixing block 73 is fixedly installed on the outer wall of the furnace body 12, and a fixing groove is opened on the upper surface of the fixing block 73.

[0056] The connecting component 9 is mounted on the adjusting seat 21 and connected to the locking rod 71. When the adjusting seat 21 and the stirring rod 22 are in a horizontal state, the locking rod 71 is tilted upward at the end away from the rotation. When the adjusting seat 21 rotates downward to drive the two stirring rods 22 to immerse in the aluminum liquid, the rotation of the adjusting seat 21 drives the locking rod 71 to rotate downward through the connecting component 9. After the two stirring rods 22 have rotated downward, the locking rod 71 rotates to a horizontal state and is snapped into the fixed groove for positioning, thereby connecting the baffle 23 and the furnace body 12.

[0057] The connecting assembly 9 includes a movable seat 91, a first connecting rod 92, and a second connecting rod 93. A movable groove 911 is provided on the upper surface of the locking rod 71 along its own length direction, and the movable seat 91 is slidably installed on the movable groove 911. Both the first connecting rod 92 and the second connecting rod 93 are cylindrical structures. A horizontal mounting rod 94 is fixedly installed on the side wall of the adjusting seat 21, and the mounting rod 94 is arranged parallel to the side wall of the baffle 23. The first connecting rod 92 is fixedly installed on the side wall of the mounting rod 94 near the baffle 23, and the axis of the first connecting rod 92 is perpendicular to the side wall of the baffle 23 near the tracked vehicle body 1.

[0058] Connecting rod 2 93 is rotatably mounted on the movable seat 91, and the rotational axes of the two rods are perpendicular to those of the locking rod 71. At the same time, the rotational direction of connecting rod 2 93 is parallel to the upper surface of the locking rod 71. Connecting rod 1 92 is a hollow structure, and connecting rod 2 93 is coaxially slidably mounted on connecting rod 1 92. Connecting rod 1 92 and connecting rod 2 93 can rotate relative to each other for adaptation.

[0059] The adjustment seat 21 rotates, driving the connecting rod 92 to rotate downwards. The rotation of the connecting rod 92 drives the connecting rod 93 and the moving seat 91 to rotate relative to each other, ensuring that the axes of the connecting rods 92 and 93 always coincide. At the same time, the moving seat 91 is driven to rotate downwards, and the rotation of the moving seat 91 drives the locking rod 71 to rotate downwards. During this process, the connecting rods 92 and 93 slide to adapt to the rotation of the moving seat 91. The moving seat 91 slides on the moving groove 911 to adapt to the position change of the moving seat 91 on the locking rod 71 after the locking rod 71 rotates. The connecting rod 93 and 92 can also rotate to adapt to the position. The process of the adjustment seat 21 driving the connecting rod 92 to rotate upwards is the same, only the direction of movement is reversed.

[0060] The baffle 23 is provided with a flexible insertion mechanism 8. When the locking rod 71 is disengaged from the furnace body 12 and the two stirring rods 22 are in a horizontal state, the insertion mechanism 8 is inserted and installed on the locking rod 71 under the action of elasticity for positioning. When the baffle 23 is close to the furnace body 12, it drives the insertion mechanism 8 to contact the furnace body 12 and pushes the insertion mechanism 8 to move until the baffle 23 abuts against the furnace body 12 to block the furnace opening 13. At this time, the insertion mechanism 8 disengages from the locking rod 71 and unlocks the locking rod 71.

[0061] The insertion mechanism 8 includes an insertion rod 81 and an elastic element 82. A fixing plate 86 is fixedly installed on the baffle 23. The insertion rod 81 includes a sliding part 83, a connecting part 84, and an insertion part 85. The sliding part 83 slides through the fixing plate 86, and the sliding direction is perpendicular to the side wall of the furnace body 12 that contacts the baffle 23, and is located below the locking rod 71. The connecting part 84 is fixedly installed on the upper surface of the sliding part 83 near the tracked vehicle body 1, and the connecting part 84 is set upward. The insertion part 85 is fixedly installed on the top of the connecting part 84 and is set along the sliding direction of the sliding part 83. A positioning groove 74 is opened on the side wall of the locking rod 71 near the tracked vehicle body 1.

[0062] A bearing plate 87 is fixedly installed on the sliding part 83 and on the side of the fixed plate 86 away from the tracked vehicle body 1. The elastic element 82 is a spring. The elastic element 82 is sleeved on the sliding part 83 and its two ends press against the fixed plate 86 and the bearing plate 87. The elastic element 82 drives the plug rod 81 to maintain a tendency away from the tracked vehicle body 1.

[0063] When the stirring rod 22 is in a horizontal state, the insertion part 85 is inserted into the positioning groove 74 under the elastic force of the elastic element 82 for positioning, thereby positioning the locking rod 71 and the stirring rod 22. At this time, the sliding part 83 extends to the side of the baffle 23 away from the tracked vehicle body 1. When the baffle 23 is close to the furnace body 12, the sliding part 83 contacts the outer wall of the furnace body 12, which is used to push the sliding part 83, the connecting part 84 and the insertion part 85 to move, so that the insertion part 85 moves away from the positioning groove 74. When the baffle 23 abuts against the outer wall of the furnace body 12, the insertion part 85 disengages from the positioning groove 74, and the locking rod 71 and the stirring rod 22 can rotate freely.

[0064] The working principle of this application embodiment is as follows: The tracked vehicle body 1 approaches the furnace body 12, allowing the two stirring rods 22 and stirring blades 24 to extend into the furnace body 12 through the furnace opening 13. Simultaneously, it drives the baffle 23 and the plug rod 81 to approach the furnace body 12. After the plug rod 81 contacts the furnace body 12, it is pushed and moved. When the baffle 23 presses against the outer wall of the furnace body 12 to block the furnace opening 13, the plug rod 81 disengages from the positioning groove 74, allowing the locking rod 71 and the adjusting seat 21 to rotate freely. The rotating mechanism 3 starts to drive the adjusting seat 21 to rotate. The adjusting seat 21 drives the two stirring rods 22 and stirring blades 24 to rotate downward and immerse them in the aluminum liquid. The rotation of the adjusting seat 21 drives the locking rod 71 to rotate downward through the connecting assembly 9, so that the locking rod 71 is snapped into the fixed groove for positioning, thus fixing the baffle 23 to the furnace body 12. The plug rod 81 is pressed against the locking rod 71 for positioning under the action of the elastic element 82.

[0065] The drive mechanism 4 starts to drive the two stirring rods 22 and stirring blades 24 to rotate and stir the aluminum liquid. At the same time, the material conveying mechanism 5 starts, so that the inert gas and refining agent are premixed and output through the discharge hole 26. The refining agent is dispersed in the aluminum liquid faster and better under the push of the inert gas and the centrifugal action. Meanwhile, the aluminum liquid flows during the stirring process, which accelerates the flow of aluminum liquid in the furnace body 12 and improves refining efficiency and quality.

[0066] After refining is completed, the stirring rod 22 stops rotating, and the adjusting seat 21 rotates to drive the two stirring rods 22 to rotate upward to a horizontal position. The adjusting seat 21 rotates to drive the locking rod 71 to rotate upward, so that the positioning groove 74 is aligned with the plug-in rod 81. The tracked vehicle body 1 drives the baffle 23 away from the furnace body 12. The plug-in rod 81 is inserted and installed on the positioning groove 74 under the action of the elastic element 82 for positioning. This enables the positioning of the locking rod 71, the adjusting seat 21 and the two stirring rods 22, ensuring the stability of the refining vehicle during operation and improving refining efficiency and quality.

[0067] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-impeller in-furnace refining car, characterized in that: Includes a tracked vehicle body (1) and a refining device (2), wherein the refining device (2) includes: The adjustment seat (21) is rotatably mounted on the tracked vehicle body (1) via the rotating shaft (11); Rotating mechanism (3) is used to drive the adjusting seat (21) to rotate; Two stirring rods (22) are rotatably mounted on the adjusting seat (21) and are evenly provided with multiple discharge holes (26). The driving mechanism (4) is used to drive the two stirring rods (22) to rotate simultaneously in opposite directions; A baffle (23) is set on the tracked vehicle body (1) and abuts against the furnace body (12) and is used to seal the furnace opening (13); both of the stirring rods (22) pass through the baffle (23) and are connected to the baffle (23) through a support follower assembly (6), which is used to support the stirring rods (22) and rotate with the stirring rods (22); The material conveying mechanism (5) is connected to the discharge port (26) and allows the inert gas and refining agent to be premixed before being output; When the tracked vehicle body (1) moves, it drives two stirring rods (22) to be in a horizontal state through the adjusting seat (21); when refining the aluminum liquid, the tracked vehicle body (1) drives two stirring rods (22) to pass through the furnace opening (13) and extend into the furnace body (12). The rotating mechanism (3) starts to drive the stirring rods (22) to rotate downward and immerse them in the aluminum liquid. The driving mechanism (4) starts to drive the two stirring rods (22) to rotate and stir. At the same time, the material conveying mechanism (5) starts to make the inert gas and refining agent premixed and output through multiple discharge holes (26).

2. The double-impeller in-furnace refining car according to claim 1, characterized in that: The material conveying mechanism (5) includes: Two conveying rings (51) are set on the adjusting seat (21) and rotatably connected to two stirring rods (22) to form a conveying cavity that communicates with multiple discharge holes (26); Two input pipes (52) are connected to two delivery rings (51) and communicate with the delivery chamber, and are flexible hoses; A mixing pipe (53) is installed on the tracked vehicle body (1) and is connected to two input pipes (52); The gas supply pipe (54) is connected to the mixing pipe (53) and is used to input inert gas; The feed assembly (55) is connected to the mixing pipe (53) and adds a refining agent into the mixing pipe (53), so that the refining agent and the inert gas are premixed and then output through the discharge hole (26).

3. The double-impeller in-furnace refining car according to claim 2, characterized in that: The feeding assembly (55) includes: The hopper (56) is connected to the mixing pipe (53) via the feed pipe (561); The spiral feed rod (57) is rotatably mounted on the feed pipe (561) and is used to add the refining agent into the mixing pipe (53).

4. The double-impeller in-furnace refining car according to claim 1, characterized in that: The baffle (23) has a rotating hole (25) and a follower groove (62) centered on the axis of the rotating shaft (11); the support follower assembly (6) includes: The follower plate (61) is slidably disposed on the follower groove (62) and always blocks the rotating hole (25), and has two through holes; Two sealing rings are snapped onto the inner sidewalls of the two through holes; Two support sleeves (63) are rotatably mounted on two stirring rods (22), passing through the through hole and the sealing ring, so that the sealing ring presses against the support sleeve (63) under the action of elasticity to seal.

5. A double-impeller in-furnace refining car according to claim 1, characterized in that: The rotating mechanism (3) includes: The telescopic component (31) is rotatably mounted on the tracked vehicle body (1); The rotating column (32) is mounted on the adjusting seat (21); The rotating ring (33) is set on the piston rod of the telescopic component (31) and is rotatably sleeved on the rotating column (32); The shock-absorbing ring is set on the inner wall of the rotating ring (33) and presses against the rotating column (32) under the action of elasticity for positioning, and is used to buffer the vibration of the rotating column (32).

6. The double-impeller in-furnace refining car according to claim 1, characterized in that: The drive mechanism (4) includes: Two auxiliary gears (41) are respectively mounted on two stirring rods (22) and mesh with each other; The drive unit (42) and the main gear (43) are mounted on the output shaft of the drive unit (42) and mesh with the secondary gear (41). The drive unit (42) starts to drive the two stirring rods (22) to rotate simultaneously in opposite directions.

7. A double-impeller in-furnace refining car according to claim 1, characterized in that; The baffle (23) is provided with a locking mechanism (7) connected to the furnace body (12), the locking mechanism (7) comprising: The locking lever (71) is rotatably mounted on the baffle (23); The connecting component (9) is set on the adjusting seat (21) and connected to the locking rod (71), so that the locking rod (71) rotates under the driving action of the adjusting seat (21). When the adjusting seat (21) drives the stirring rod (22) to immerse in the aluminum liquid, the end of the locking rod (71) away from the rotation is snapped and installed on the outer wall of the furnace body (12) for positioning. When the adjusting seat (21) drives the stirring rod (22) to rotate to the horizontal state, the locking rod (71) is disengaged from the outer wall of the furnace body (12).

8. A double-impeller in-furnace refining car according to claim 7, characterized in that: The connection component (9) includes: The movable seat (91) is slidably disposed on the upper surface of the locking rod (71) along the length direction of the locking rod (71); Connecting rod one (92) and connecting rod two (93) are both cylindrical and coaxially slidably connected. Connecting rod one (92) is set on the adjusting seat (21), and connecting rod two (93) is rotatably mounted on the moving seat (91) and the rotation direction is perpendicular to the rotation direction of the locking rod (71).

9. A double-impeller in-furnace refining car according to claim 7, characterized in that: The baffle (23) is provided with a flexible insertion mechanism (8), the insertion mechanism (8) comprising: The plug rod (81) is slidably mounted on the baffle (23), and the locking rod (71) is provided with a positioning groove (74). The elastic element (82) is connected to the baffle (23) and the plug rod (81). When the stirring rod (22) is in a horizontal state, the plug rod (81) is inserted into the positioning groove (74) for positioning under the elastic force of the elastic element (82). Alternatively, the plug rod (81) is pushed away from the positioning groove (74) after contacting the furnace body (12), and the locking rod (71) is unlocked.

10. A double-impeller in-furnace refining car according to claim 1, characterized in that: The baffle (23) is provided with an annular ring that surrounds the furnace opening (13) and presses against the furnace body (12) for sealing.

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