Aluminum alloy casting and refining device
Through the design of the refining agent crushing and stirring device, the problem of refining agent blockage is solved, the full mixing and purification of aluminum alloy melt is achieved, and the effect of aluminum alloy melt casting and refining is improved.
Patent Information
- Application Number
- CN202421931314.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In the existing aluminum alloy melting and casting device, the refining agent is prone to block the pipeline during the input process, affecting the mixing effect with the aluminum alloy melt.
The refining agent crushing box, screening plate and vibration motor are used to crush the refining agent, and the main and auxiliary stirring rods are rotated simultaneously by the motor driving the gear ring and linking gear, combined with the inert gas conveying, and diffuse bubbles are formed to promote mixing and purification.
It effectively avoids pipeline blockage caused by the agglomeration of refining agent, ensures that the refining agent is fully mixed with the aluminum alloy melt, improves the purification effect, removes hydrogen and oxidation slag inclusions, and obtains high-quality aluminum alloy melt.
Smart Images
Figure CN223047570U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of aluminum alloy melting, and specifically relates to an aluminum alloy melting and refining device. Background Technique
[0002] Aluminum alloy is one of the most widely used non-ferrous metal structural materials in industry. It has been widely used in aviation, aerospace, automobiles, machinery manufacturing, ships and chemical industries. With the rapid development of the industrial economy, the demand for aluminum alloy welded structural parts is increasing day by day, which has also deepened the research on the weldability of aluminum alloys. At present, aluminum alloy is the most used alloy. Aluminum alloy has a low density, but a relatively high strength, close to or exceeding high-quality steel, good plasticity, can be processed into various profiles, has excellent electrical conductivity, thermal conductivity and corrosion resistance, and is widely used in industry. Its usage is second only to steel. Some aluminum alloys can obtain good mechanical properties, physical properties and corrosion resistance through heat treatment.
[0003] When processing with the existing melting and casting device, it is necessary to add a refining agent, and the refining agent is granular, and there is a blockage situation during the input process. The blockage will not be conducive to the refining effect, and after adding the refining agent, it is necessary to ensure that the refining agent can be repeatedly mixed with the aluminum alloy melt. In view of this, the present utility model is specifically proposed. Content of the Utility Model
[0004] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide an aluminum alloy melting and refining device.
[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:
[0006] An aluminum alloy melting and refining device, including a refining tank, a refining agent crushing box, a main stirring rod and an auxiliary stirring rod. It is characterized in that a refining agent crushing box is fixedly installed at the top end of the refining tank through a bracket. Crushing rollers for crushing the refining agent are symmetrically arranged in the refining agent crushing box. A hopper is arranged below the two crushing rollers. A screening plate is arranged below the hopper. A sieve mesh is arranged in the middle of the screening plate. The screening plate and the hopper are connected through a telescopic sleeve. Vibration motors are fixed on both sides of the upper end of the screening plate. The screening plate and the side wall of the refining agent crushing box are connected through a first spring and a connecting chain. An outlet plate is arranged below the sieve mesh. A second spring is installed between the outlet plate and the refining agent crushing box. An outlet pipe is arranged below one side of the outlet plate. The bottom of the outlet pipe penetrates into the refining tank. A first electromagnetic control valve is arranged in the middle of the outlet pipe. A vibration motor is also arranged at the upper end of the outlet plate;
[0007] In the middle of the refining tank, a main stirring rod is installed through a sealed bearing. At the top of the main stirring rod, an inert gas delivery pipe is connected through a rotary joint. At the upper end of the refining tank, four auxiliary stirring rods are also installed through sealed bearings. The lower ends of the four auxiliary stirring rods are rotationally connected to an internal support block through bearings. A plurality of stirring blades are staggered and distributed on the outside of each auxiliary stirring rod.
[0008] Optionally, a circular rail for installing a gear ring is fixed at the upper end of the refining tank. A plurality of balls for reducing friction are provided between the circular rail and the gear ring. The inner wall of the gear ring is provided with internal teeth meshing with a motor-driven gear. The driving gear meshes with a driven gear, and the driven gear is fixedly sleeved on the outside of the upper end of the main stirring rod.
[0009] Optionally, external teeth meshing with four linkage gears are equally spaced on the outside of the gear ring. The four linkage gears are respectively sleeved on the outside of the tops of the four auxiliary stirring rods.
[0010] Optionally, a delivery cavity communicating with the inert gas delivery pipe is provided inside the main stirring rod, and the delivery cavity is internally communicated with a plurality of delivery holes outside the lower end of the main stirring rod. A second electromagnetic control valve is installed in the middle of the inert gas delivery pipe, and the other end of the second electromagnetic control valve is communicated with a delivery pump through a pipeline. The negative pressure end of the delivery pump is communicated with the air outlet end of the inert gas tank through a pipeline, and the inert gas tank is installed outside the refining tank through a fixed frame.
[0011] Optionally, a third electromagnetic control valve and a fourth electromagnetic control valve are respectively provided on one side of the refining tank. The third electromagnetic control valve is communicated with the inside of the refining tank through a raw material pipe. The fourth electromagnetic control valve is controlled to be communicated with the inside of the refining tank through a pipeline. The fourth electromagnetic control valve is used for injecting aluminum alloy melt, and the third electromagnetic control valve is used for discharging melt scum. The bottom of the refining tank is communicated with a fifth electromagnetic control valve through a pipeline, and the fifth electromagnetic control valve is used for discharging the refined aluminum alloy melt.
[0012] Optionally, an exhaust valve is installed on the other side of the refining tank.
[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:
[0014] The utility model fully crushes the refining agent put into the refining tank through the cooperation of the refining agent crushing box, the screening plate and the vibration motor, thus avoiding the situation that the refining agent enters the refining tank in a caked state, which not only easily causes pipeline blockage, but also affects the full mixing of the refining agent and the aluminum alloy melt. And in order to help the aluminum alloy melt and the refining agent to be fully mixed, the device will use the motor to drive the gear ring to rotate, thereby driving the driven gear and the four linkage gears to rotate. At this time, the main stirring rod and the four auxiliary stirring rods inside the device will rotate synchronously, so as to fully mix the aluminum alloy melt and the refining agent. And in order to improve the refining effect, during the stirring process, the main stirring rod will transport inert gas through the conveying cavity inside it, such as transporting nitrogen. That is, the nitrogen blown into the aluminum alloy melt is chopped by the main stirring rod or the auxiliary stirring rod to form a large number of dispersed bubbles, so that the aluminum alloy liquid and nitrogen are in full contact in the treatment tank. According to the principle of air pressure difference and surface adsorption, the bubbles absorb hydrogen in the melt and adsorb oxidation slag (the large ones in a collision manner and the small ones in a radial interception manner) in the melt and then rise to the surface of the melt to form dross. The dross will be discharged through the third electromagnetic control valve, while the aluminum alloy melt is arranged below the dross and flows to the fifth electromagnetic control valve to achieve the purpose of purifying the aluminum alloy liquid.
[0015] The following further describes in detail the specific implementation manners of the present utility model in conjunction with the drawings. Brief Description of the Drawings
[0016] The drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the attached
[0017] In the figure:
[0018] Figure 1 is the front view sectional structure schematic diagram of the present utility model;
[0019] Figure 2 is the combined part structure schematic diagram of the bracket and the refining agent crushing box in the present utility model;
[0020] Figure 3 is the top view structure schematic diagram of the part of the gear ring in the present utility model;
[0021] Figure 4 is Figure 1 the part structure schematic diagram of part A in
[0022] Figure 5 is Figure 1 the part structure schematic diagram of part B in
[0023] Figure 6 is Figure 1 the part structure schematic diagram of part C in
[0024] Figure 7 is Figure 2 a schematic diagram of the structure of the D - part components in
[0025] In the attached drawings, the list of components represented by each label is as follows:
[0026] 1. Refining tank; 2. Bracket; 3. Refining agent crushing box; 4. Crushing roller; 5. Hopper; 6. Screening plate; 7. Telescopic sleeve; 8. Sieve mesh; 9. First spring; 10. Connecting chain; 11. Discharge plate; 12. Second spring; 13. Discharge pipe; 14. First electromagnetic control valve; 15. Main stirring rod; 16. Inert gas delivery pipe; 17. Auxiliary stirring rod; 18. Built - in support block; 19. Stirring blade; 20. Tooth ring; 21. Ring track; 22. Ball; 23. Inner tooth block; 24. Driven gear; 25. Linkage gear; 26. Delivery cavity; 27. Second electromagnetic control valve; 28. Delivery pump; 29. Inert gas tank; 30. Fixed frame; 31. Third electromagnetic control valve; 32. Fourth electromagnetic control valve; 33. Fifth electromagnetic control valve; 34. Exhaust valve.
[0027] It should be noted that these attached drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Specific embodiments
[0028] Now, the present utility model will be further described in detail with reference to the attached drawings.
[0029] Please refer to Figures 1 to 7 , the present utility model provides a technical solution: an aluminum alloy melting and refining device, including a refining tank 1, a refining agent crushing box 3, a main stirring rod 15 and an auxiliary stirring rod 17. The top of the refining tank 1 is fixedly installed with a refining agent crushing box 3 through a bracket 2. Symmetrically arranged in the refining agent crushing box 3 are crushing rollers 4 for crushing the refining agent. Below the two crushing rollers 4 is a hopper 5. Below the hopper 5 is a screening plate 6. In the middle of the screening plate 6 is a sieve mesh 8. The screening plate 6 and the hopper 5 are connected through a telescopic sleeve 7. On both sides of the upper end of the screening plate 6 are fixedly installed vibration motors. The screening plate 6 and the side wall of the refining agent crushing box 3 are connected through a first spring 9 and a connecting chain 10. Below the sieve mesh 8 is a discharge plate 11. Between the discharge plate 11 and the refining agent crushing box 3 is installed a second spring 12. Below one side of the discharge plate 11 is a discharge pipe 13. The bottom of the discharge pipe 13 penetrates to the inside of the refining tank 1. In the middle of the discharge pipe 13 is a first electromagnetic control valve 14. On the upper end of the discharge plate 11 is also installed a vibration motor;
[0030] In the middle of the refining tank 1, a main stirring rod 15 is installed through a sealed bearing. At the top of the main stirring rod 15, an inert gas delivery pipe 16 is connected through a rotary joint. At the upper end of the refining tank, four auxiliary stirring rods 17 are also installed through sealed bearings. The lower ends of the four auxiliary stirring rods 17 are rotatably connected to the built-in support block 18 through bearings. A plurality of stirring blades 19 are staggered and distributed on the outside of each auxiliary stirring rod 17. Considering that when using the existing melting and casting device for processing, a refining agent needs to be added, and the refining agent is granular, there is a situation of blockage during the input process. The blockage will be detrimental to the refining effect, and there is also the problem that after adding the refining agent, it is necessary to ensure that the refining agent can be repeatedly mixed with the aluminum alloy melt. The utility model fully crushes the refining agent input into the refining tank 1 through the cooperation of the refining agent crushing box 3, the screening plate 6 and the vibration motor, thereby avoiding the situation that when the refining agent enters the refining tank 1 in a caked state, it is not only easy to cause pipeline blockage, but also affects the full mixing of the refining agent and the aluminum alloy melt. And in order to help the aluminum alloy melt and the refining agent to be fully mixed, the device will drive the driven gear 24 and the four linkage gears 25 to rotate by driving the gear ring 20 to rotate by the motor. At this time, the main stirring rod 15 and the four auxiliary stirring rods 17 inside the device will rotate synchronously, so as to fully mix the aluminum alloy melt and the refining agent. And in order to improve the refining effect, during the stirring process of the main stirring rod 15, inert gas, such as nitrogen, will be transported through the transport cavity 26 inside it, that is, the nitrogen blown into the aluminum alloy melt is chopped by the main stirring rod 15 or the auxiliary stirring rod 17 to form a large number of dispersed bubbles, so that the aluminum alloy liquid and nitrogen are in full contact in the treatment pool. According to the air pressure difference and the surface adsorption principle, the bubbles absorb hydrogen in the melt and adsorb oxidation slag (the large ones in a collision manner and the small ones in a radial interception manner) in the melt and then rise to the surface of the melt to form dross. The dross will be discharged through the third electromagnetic control valve 31, while the aluminum alloy melt is arranged to flow to the fifth electromagnetic control valve 33 under the dross to achieve the purpose of purifying the aluminum alloy liquid.
[0031] Among them, a ring rail 21 for installing the gear ring 20 is fixed at the upper end of the refining tank 1. A plurality of balls 22 for reducing friction are arranged between the ring rail 21 and the gear ring 20, and an internal tooth block 23 meshed with the motor driving gear is arranged on the inner wall of the gear ring 20. The driving gear is meshed with the driven gear 24, and the driven gear 24 is fixedly sleeved on the outer part of the upper end of the main stirring rod 15. By setting the ring rail 21, it plays a guiding role in the rotation of the gear ring 20, and the presence of the balls 22 can reduce the friction between the gear ring 20 and the base surface of the ring rail 21.
[0032] Among them, external tooth blocks meshed with the four linkage gears 25 are equally spaced on the outside of the gear ring 20, and the four linkage gears 25 are respectively sleeved on the outer parts of the tops of the four auxiliary stirring rods 17. By setting the outer gear ring 20, it plays a driving role in the four linkage gears 25.
[0033] Among them, a conveying cavity 26 communicating with the inert gas conveying pipe 16 is arranged inside the main stirring rod 15, and the conveying cavity 26 is internally communicated with a plurality of conveying holes outside the lower end of the main stirring rod 15. A second electromagnetic control valve 27 is installed in the middle of the inert gas conveying pipe 16, and the other end of the second electromagnetic control valve 27 is communicated with a conveying pump 28 through a pipeline. The negative pressure end of the conveying pump 28 is communicated with the air outlet end of an inert gas tank 29 through a pipeline, and the inert gas tank 29 is installed outside the refining tank 1 through a fixing frame 30. By setting the second electromagnetic control valve 27, the entry and the entry amount of the inert gas are controlled.
[0034] Among them, a third electromagnetic control valve 31 and a fourth electromagnetic control valve 32 are respectively arranged on one side of the refining tank 1. The third electromagnetic control valve 31 is communicated with the inside of the refining tank 1 through a raw material pipe, and the fourth electromagnetic control valve is communicated with the inside of the refining tank 1 through a pipeline. The fourth electromagnetic control valve 32 is used for putting in the aluminum alloy melt, and the third electromagnetic control valve 31 is used for discharging the melt scum. The bottom of the refining tank is communicated with a fifth electromagnetic control valve 33 through a pipeline, and the fifth electromagnetic control valve 33 is used for discharging the refined aluminum alloy melt. By setting the third electromagnetic control valve 31, the scum floating on the surface of the aluminum alloy melt is discharged, and the fourth electromagnetic control valve 32 puts the aluminum alloy melt into the inside of the refining tank 1.
[0035] Among them, an exhaust valve 34 is installed on the other side of the refining tank 1. By setting the exhaust valve 34, the redundant gas in the refining tank 1 can be discharged, and the air pressure balance inside the refining tank 1 can be maintained.
[0036] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, all fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.
Claims
1. An aluminum alloy melting and refining device, comprising a refining tank (1), a refining agent crushing box (3), a main stirring rod (15) and an auxiliary stirring rod (17), characterized in that: A refining agent crushing box (3) is fixedly mounted on the top of the refining tank (1) via a bracket (2), crushing rollers (4) for crushing the refining agent are symmetrically arranged on the refining agent crushing box (3), a hopper (5) is arranged below the two crushing rollers (4), a screening plate (6) is arranged below the hopper (5), a screen (8) is arranged in the middle of the screening plate (6), the screening plate (6) and the hopper (5) are connected via a telescopic sleeve (7), vibration motors are fixed on both sides of the upper end of the screening plate (6), and the screening plate (6) and the refining agent crushing box (3) are arranged on the bottom of the refining tank (1). The side walls of the crushing box (3) are connected by a first spring (9) and a connecting chain (10); a discharge plate (11) is provided below the screen (8); a second spring (12) is installed between the discharge plate (11) and the refining agent crushing box (3); a discharge pipe (13) is provided below one side of the discharge plate (11); the bottom of the discharge pipe (13) penetrates into the interior of the refining tank (1); a first electromagnetic control valve (14) is provided in the middle of the discharge pipe (13); and a vibration motor is also provided at the upper end of the discharge plate (11); A main stirring rod (15) is installed in the middle of the refining tank (1) via a sealed bearing, and an inert gas delivery pipe (16) is connected to the top of the main stirring rod (15) via a rotating joint. Four auxiliary stirring rods (17) are also installed at the upper end of the refining tank via a sealed bearing, and the lower ends of the four auxiliary stirring rods (17) are rotatably connected to a built-in support block (18) via a bearing, and a plurality of stirring blades (19) are staggeredly distributed on the outside of each auxiliary stirring rod (17).
2. The aluminum alloy melting and refining device according to claim 1, characterized in that: The upper end of the refining tank (1) is fixed with an annular rail (21) for mounting a gear ring (20), a plurality of balls (22) for reducing friction are arranged between the annular rail (21) and the gear ring (20), and an inner tooth block (23) is arranged on the inner wall of the gear ring (20) for meshing with a motor driving gear, the driving gear is meshed with a driven gear (24), and the driven gear (24) is fixedly sleeved on the outer upper end of the main stirring rod (15).
3. The aluminum alloy melting, casting and refining device according to claim 2, characterized in that: External tooth blocks meshing with four linkage gears (25) are evenly spaced outside the gear ring (20), and the four linkage gears (25) are respectively sleeved on the outside of the top ends of the four auxiliary stirring rods (17).
4. The aluminum alloy melting, casting and refining device according to claim 1, characterized in that: The main stirring rod (15) is provided with a delivery chamber (26) in communication with the inert gas delivery pipe (16), and the delivery chamber (26) is in communication with the interior of a plurality of delivery holes outside the lower end of the main stirring rod (15). A second electromagnetic control valve (27) is installed in the middle of the inert gas delivery pipe (16), and the other end of the second electromagnetic control valve (27) is in communication with a delivery pump (28) through a pipeline. The negative pressure end of the delivery pump (28) is in communication with the gas outlet end of an inert gas tank (29) through a pipeline, and the inert gas tank (29) is installed on the outer side of the refining tank (1) through a fixing frame (30).
5. The aluminum alloy melting, casting and refining device according to claim 1, characterized in that: A third electromagnetic control valve (31) and a fourth electromagnetic control valve (32) are respectively provided on one side of the refining tank (1); the third electromagnetic control valve (31) is connected to the interior of the refining tank (1) through a raw material pipe; the fourth electromagnetic control valve (32) is connected to the interior of the refining tank (1) through a pipeline; and the fourth electromagnetic control valve (32) is used to add aluminum alloy melt; the third electromagnetic control valve (31) is used to discharge molten slag; the bottom of the refining tank is connected to a fifth electromagnetic control valve (33) through a pipeline, and the fifth electromagnetic control valve (33) is used to discharge the refined aluminum alloy melt.
6. The aluminum alloy melting, casting and refining device according to claim 1, characterized in that: An exhaust valve (34) is installed on the other side of the refining tank (1).