Aluminum melt stirring device capable of feeding air

Abstract

The utility model relates to the technical field of aluminum melt purification, and discloses an air-inflow aluminum melt stirring device which comprises a purification box, a mounting frame arranged on the purification box, a stirring rod rotationally arranged on the mounting frame, a driving assembly used for driving the stirring rod to rotate and an air supply assembly. A vent groove is coaxially formed in the stirring rod, the lower end of the stirring rod extends into the purification box, a stirring seat is arranged at the lower end of the stirring rod, an air outlet hole is formed in the stirring seat, the upper end of the vent groove is communicated with the air supply assembly, and the lower end of the vent groove is communicated with the air outlet hole; the aluminum melt purifying device can improve the aluminum melt purifying effect.

Description

Technical Field

[0001] This application relates to the technical field of aluminum melt purification, and in particular to an air-intake aluminum melt stirring device. Background Technology

[0002] After aluminum ingots are melted at high temperatures, the resulting aluminum melt contains impurities. It is necessary to first send the aluminum melt into a purification chamber for purification to remove the impurities and improve the purity of the aluminum melt.

[0003] Generally, when purifying molten aluminum, it is necessary to add impurity removal and refining agents and other raw materials into the purification chamber, and to set up a stirring mechanism to stir the molten aluminum in the purification chamber to accelerate the impurity removal reaction. In addition, oxygen or inert gases such as argon are introduced into the purification chamber to further improve the impurity removal effect.

[0004] Regarding the aforementioned technologies, directly introducing gas into the purification chamber results in a small contact area between the gas and the molten aluminum, leading to poor impurity removal. Utility Model Content

[0005] To improve the purification effect on molten aluminum, this application provides an air-intake molten aluminum stirring device.

[0006] This application provides an air-intake-enabled aluminum melt stirring device, which adopts the following technical solution:

[0007] An air-intake aluminum melt stirring device includes a purification box, a mounting bracket disposed on the purification box, a stirring rod rotatably disposed on the mounting bracket, a drive assembly for driving the stirring rod to rotate, and an air supply assembly. A venting groove is coaxially formed inside the stirring rod, the lower end of the stirring rod extends into the purification box, and a stirring seat is provided at the lower end of the stirring rod. An air outlet is formed on the stirring seat. The upper end of the venting groove is connected to the air supply assembly, and the lower end of the venting groove is connected to the air outlet.

[0008] By adopting the above technical solution, a ventilation groove is opened in the stirring rod to introduce gas; the stirring seat at the lower end of the stirring rod is provided with an air outlet, so that after the gas is discharged from the air outlet, it can be evenly distributed into the aluminum melt as the stirring seat rotates, thereby improving the gas diffusion effect and improving the purification effect and purification efficiency of the gas on the aluminum melt.

[0009] Optionally, the drive assembly includes a motor, sprockets, and a chain. The motor is mounted on the mounting bracket, the sprockets are respectively mounted on the output shaft of the motor and on the stirring rod, and the chain passes around the two sprockets.

[0010] By adopting the above technical solution, the drive component includes a motor, a sprocket, and a chain. The motor drives the sprocket, and the chain drives the stirring rod to rotate. This design makes the rotation of the stirring rod more stable and efficient, while also adapting to high-temperature environments.

[0011] Optionally, the air supply assembly includes a pneumatic rotary joint, an air supply pipe, and an air storage tank. The pneumatic rotary joint is coaxially rotatably connected to the upper end of the stirring rod. One end of the air supply pipe is connected to the pneumatic rotary joint, and the other end of the air supply pipe is connected to the air storage tank.

[0012] By adopting the above technical solution, the gas is coaxially connected to the upper end of the stirring rod through a rotary joint, ensuring the continuity and stability of the gas supply.

[0013] Optionally, the mounting bracket is provided with a positioning plate at its lower end, and a fixing component is provided on the positioning plate. The purification box is provided with a box cover at its upper end, and a clearance hole is provided on the box cover for the stirring seat to pass through. The positioning plate can cover the clearance hole.

[0014] By adopting the above technical solution, the positioning plate can seal the clearance hole.

[0015] Optionally, the fixing component is a fixing bolt, the positioning plate has a through hole for the fixing bolt to pass through, and the box cover has a threaded hole for the fixing bolt to be threadedly connected. The fixing bolt can pass through the through hole and be threadedly connected to the threaded hole.

[0016] By adopting the above technical solution, the positioning plate can be easily and quickly detachably fixed to the box cover.

[0017] Optionally, the inner diameter of the relief hole gradually decreases from top to bottom, and a sealing ring is provided on the lower surface of the positioning plate. When the sealing ring is inserted into the relief hole, the side wall of the sealing ring abuts against the side wall of the relief hole.

[0018] By adopting the above technical solution, the sealing performance of the device is improved, and gas leakage and the intrusion of external impurities into the purification chamber are reduced.

[0019] Optionally, a plurality of stirring blades are threadedly connected to the side wall of the stirring seat, and the air outlet is opened on the side wall of the stirring blade away from its own rotation direction.

[0020] By adopting the above technical solution, the stirring effect is enhanced, and the gas can be sent out along the side wall of the stirring blade, which further improves the dispersing effect of the stirring blade on the gas, thereby improving the purification effect of the gas on the aluminum melt.

[0021] Optionally, the stirring rod includes a first rod and a second rod connected to each other, the first rod being made of stainless steel at the top and the second rod being made of ceramic at the bottom, and the stirring seat and the stirring blade are also made of ceramic.

[0022] By adopting the above technical solution, the part that extends into the molten aluminum is made of ceramic material, which gives the lower end of the stirring rod better corrosion resistance and wear resistance, thus extending the service life of the device.

[0023] Optionally, the first rod and the second rod are threaded together, and the stirring rod is provided with a reinforcing bolt and a reinforcing nut. The reinforcing bolt can pass through the first rod and the second rod in sequence and be threadedly connected to the reinforcing nut.

[0024] By adopting the above technical solution, the structural strength of the stirring rod connection is enhanced, and the stability and durability of the device are improved.

[0025] In summary, this application includes at least one of the following beneficial effects:

[0026] 1. By opening a ventilation groove inside the stirring rod and an air outlet on the stirring seat, gas can be introduced into the purification box, and the gas can be dispersed by the stirring seat, thereby improving the purification effect of stirring the aluminum melt.

[0027] 2. By using stainless steel and ceramic materials, as well as reinforcing bolts and nuts, the structural strength of the stirring rod is enhanced, improving the stability and durability of the device. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0029] Figure 2 This is a cross-sectional view of the cleanroom.

[0030] Figure 3 This is a schematic diagram of the holding structure of the stirring rod.

[0031] Explanation of reference numerals in the attached drawings: 1. Purification box; 11. Clearance hole; 12. Box cover; 2. Mounting bracket; 21. Positioning plate; 22. Fixing component; 221. Fixing bolt; 23. Sealing ring; 3. Stirring rod; 31. First rod; 32. Second rod; 33. Reinforcing bolt; 34. Reinforcing nut; 4. Drive assembly; 41. Motor; 42. Sprocket; 43. Chain; 5. Air supply assembly; 51. Pneumatic rotary joint; 52. Air supply pipe; 53. Air storage tank; 6. Stirring base; 61. Air outlet; 62. Stirring blade. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] This application discloses an air-intake-enabled aluminum melt stirring device. (Refer to...) Figure 1 and Figure 2 The aluminum melt stirring device includes a purification tank 1, a mounting frame 2, a stirring rod 3, a drive assembly 4, and a gas supply assembly 5. The purification tank 1 holds the molten aluminum. The mounting frame 2 is mounted on the purification tank 1. The stirring rod 3 is rotatably mounted on the mounting frame 2, with its lower end inserted into the purification tank 1 and fixed to a stirring seat 6. A venting groove is formed inside the stirring rod 3, extending vertically. An air outlet 61 is formed on the stirring seat 6. The drive assembly 4 drives the stirring rod 3 to rotate. The upper end of the venting groove is connected to the gas supply assembly 5, and the lower end of the venting groove is connected to the air outlet 61.

[0034] Thus, when the stirring rod 3 is driven to rotate by the driving component 4, and the stirring seat 6 is rotated to stir the aluminum melt, inert gases such as oxygen or argon can be sent out through the ventilation groove and the gas outlet 61. As the stirring seat 6 rotates, it disturbs the aluminum melt and the gas. The gas rotates and shears at high speed in the aluminum melt to form small bubbles, which increases the residence time of the gas in the aluminum melt and makes the gas fully contact the aluminum melt, thereby improving the purification effect.

[0035] Reference Figure 1 and Figure 2 In this embodiment, the purification box 1 is a rectangular box with a lid 12. The mounting frame 2 is preferably a rectangular frame structure. The lower end of the mounting frame 2 can be fixed to the positioning plate 21 by welding or other methods. The positioning plate 21 can also be a rectangular plate. It should be noted that, due to the high surface temperature of the purification box 1, the mounting frame 2 and the positioning plate 21 are preferably made of high-temperature resistant materials, such as stainless steel. The positioning plate 21 is detachably fixed to the lid 12. Specifically, the positioning plate 21 is provided with a fixing member 22, which is a fixing bolt 221, preferably a wing bolt. The positioning plate 21 has through holes for the fixing bolt 221 to pass through. The upper surface of the lid 12 has corresponding threaded holes for the fixing bolt 221 to be threaded. The fixing bolt 221 passes through the through holes and is threaded into the threaded holes. Preferably, multiple fixing bolts 221 are arranged along the circumference of the positioning plate 21, and multiple sets of through holes and threaded holes are also provided for the fixing bolts 221.

[0036] Reference Figure 1 and Figure 2In this embodiment, the drive assembly 4 includes a motor 41, a sprocket 42, and a chain 43. Specifically, to minimize the impact of high-temperature environments on the operation of the motor 41, the motor 41 is fixedly mounted on the upper end of the mounting frame 2. The stirring rod 3 is a circular rod, with its upper end extending upwards through the main body of the mounting frame 2 and extending to the upper end of the mounting frame 2. The mounting frame 2 has corresponding through holes for the stirring rod 3 to rotate through. A sprocket 42 is coaxially fixed to the outer wall of the output shaft end of the motor 41, and a sprocket 42 is also coaxially fixed to the outer wall of the stirring rod 3 near its upper end. The chain 43 winds around the two sprockets 42. When the motor 41 is started, the stirring rod 3 is driven to rotate through the transmission of the sprockets 42 and the chain 43.

[0037] Reference Figure 1 and Figure 2 The air supply assembly 5 includes a pneumatic rotating structure, an air supply pipe 52, and an air storage tank 53. A pneumatic rotary joint 51 is connected to the upper end of the stirring rod 3 and can rotate relative to the stirring rod 3. A venting groove inside the stirring rod 3 extends upwards through the upper surface of the stirring rod 3 and is connected to the air outlet of the pneumatic rotary joint 51. One end of the air supply pipe 52 is connected to the air inlet of the pneumatic rotary joint 51, and the other end is connected to the air storage tank 53. The air storage tank 53 can be mounted on the cover 12 of the purification chamber 1. In this case, a support rod or support frame needs to be installed at the lower end of the air storage tank 53 to reduce the impact of temperature on the air storage tank 53. Preferably, the air storage tank 53 can be mounted on the ground, and a control valve for controlling the air output is correspondingly installed on the air storage tank 53.

[0038] Reference Figure 2 The stirring seat 6 is a circular seat structure with an outer diameter larger than that of the stirring rod 3. In an optional embodiment, the air outlet 61 can be opened on the lower surface of the stirring seat 6. At the same time, the air guide groove is opened on the lower surface of the stirring seat 6. The air guide groove is opened along the circumference of the stirring seat 6, so that as the stirring seat 6 rotates, the gas can be dispersed along the air guide groove.

[0039] Reference Figure 2 and Figure 3In this embodiment, to further enhance the stirring effect of the stirring seat 6, the stirring seat 6 is a hollow circular seat with threaded holes on its sidewalls, and multiple such holes are provided along the circumference of the sidewalls. Several stirring blades 62 are provided on the sidewalls of the stirring seat 6, with one end of each blade threadedly connected to a threaded hole on the stirring seat 6. The main body of each stirring blade 62 is a rectangular sheet structure, and when the stirring blade 62 is fixed to the stirring seat 6, its wide surface is arranged vertically, so that as the stirring seat 6 rotates, the stirring blade 62 can fully agitate the molten aluminum. Multiple vent holes 61 are provided on the sidewalls of the stirring blades 62, and ventilation pipes are also provided inside the stirring blades 62, allowing the gas in the ventilation slots to be smoothly discharged from the vent holes 61. Preferably, the vent holes 61 are located on the sidewall of the stirring blade 62 opposite to the direction of rotation, so that during the rotation of the stirring blade 62, external molten aluminum is less likely to enter the vent holes 61, while simultaneously allowing for good gas diffusion.

[0040] Reference Figure 2 and Figure 3 The cover 12 has a clearance hole 11 for the stirring seat 6 and the stirring blade 62 to pass through. The inner diameter of the clearance hole 11 preferably decreases gradually from top to bottom. At the same time, a sealing ring 23 is fixed below the positioning plate 21. The rod body of the stirring rod 3 passes through the sealing ring 23 and can rotate relative to the sealing ring 23. The outer diameter of the sealing ring 23 is set to correspond to the clearance hole 11. When the positioning plate 21 is fixed on the cover 12, the positioning plate 21 can cover the clearance hole 11. At the same time, the outer wall of the sealing ring 23 abuts against the side wall of the clearance hole 11, which can improve the sealing performance at the clearance hole 11.

[0041] Reference Figure 2 and Figure 3 In an optional embodiment, the stirring rod 3 is divided into two parts: a first rod 31 and a second rod 32. The first rod 31 is located on top and is made of stainless steel, while the second rod 32 is located on the bottom and is made of ceramic. Correspondingly, the stirring seat 6 and the stirring blade 62 are also made of ceramic. Since the temperature of molten aluminum is high, and the purification chamber 1 cannot be completely sealed, using ceramic material can reduce the rate of corrosion of the stirring rod 3 and the stirring seat 6, increasing their service life. At the same time, because the stirring blade 62 is relatively thin, it is easily worn during use, thus affecting the stirring effect. Therefore, the threaded connection of the stirring blade 62 facilitates replacement of the stirring blade 62.

[0042] Reference Figure 2 and Figure 3Specifically, the upper outer wall of the second rod 32 is provided with external threads. These threads can be directly formed on the ceramic outer wall of the second rod 32, or a metal ring can be fixed to the end of the second rod 32, thus forming the external threads on the metal ring. The lower inner wall of the first rod 31 is provided with external threads, allowing the upper end of the second rod 32 to be inserted into the lower end of the first rod 31 and threadedly connected. Furthermore, the stirring rod 3 is also provided with reinforcing bolts 33 and reinforcing nuts 34. A corresponding opening is provided at the connection point of the first rod 31 and the second rod 32 for the reinforcing bolts 33 to pass through. This allows the reinforcing bolts 33 to pass through the first rod 31 and the second plate and be threadedly connected to the reinforcing nuts 34, improving the stability of the connection between the first rod 31 and the second rod 32. It should be noted that the connection point of the first rod 31 and the second rod 32 is preferably above the aluminum melt page, and when the second bolt passes through the opening, a gasket is preferably provided to improve sealing.

[0043] The implementation principle of the air-intake aluminum melt stirring device in this application embodiment is as follows: When in use, air is first supplied through the air storage tank 53, then the aluminum melt is injected into the purification box 1, and then the motor 41 is turned on to start the stirring rod 3 to rotate and stir the aluminum melt. At the same time, the injected gas helps to remove impurities and purify the aluminum melt.

[0044] 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. An air-intake-enabled aluminum melt stirring device, characterized in that: The device includes a purification box (1), a mounting bracket (2) mounted on the purification box (1), a stirring rod (3) rotatably mounted on the mounting bracket (2), a drive assembly (4) for driving the stirring rod (3) to rotate, and an air supply assembly (5). The stirring rod (3) has a coaxial ventilation groove, the lower end of the stirring rod (3) extends into the purification box (1), and the lower end of the stirring rod (3) is provided with a stirring seat (6). The stirring seat (6) has an air outlet (61). The upper end of the ventilation groove is connected to the air supply assembly (5), and the lower end of the ventilation groove is connected to the air outlet (61).

2. The air-intake aluminum melt stirring device according to claim 1, characterized in that: The drive assembly (4) includes a motor (41), a sprocket (42) and a chain (43). The motor (41) is mounted on the mounting frame (2). The sprocket (42) is mounted on the output shaft of the motor (41) and on the stirring rod (3). The chain (43) passes around the two sprockets (42).

3. The air-intake-enabled aluminum melt stirring device according to claim 1, characterized in that: The gas supply assembly (5) includes a pneumatic rotary joint (51), a gas supply pipe (52), and a gas storage tank (53). The pneumatic rotary joint (51) is coaxially rotatably connected to the upper end of the stirring rod (3). One end of the gas supply pipe (52) is connected to the pneumatic rotary joint (51), and the other end of the gas supply pipe (52) is connected to the gas storage tank (53).

4. The air-intake aluminum melt stirring device according to claim 1, characterized in that: The mounting bracket (2) is provided with a positioning plate (21) at its lower end. The positioning plate (21) is provided with a fixing piece (22). The purification box (1) is provided with a box cover (12) at its upper end. The box cover (12) is provided with a clearance hole (11) for the stirring seat (6) to pass through. The positioning plate (21) can cover the clearance hole (11).

5. The air-intake aluminum melt stirring device according to claim 4, characterized in that: The fixing component (22) is a fixing bolt (221). The positioning plate (21) has a through hole for the fixing bolt (221) to pass through. The box cover (12) has a threaded hole for the fixing bolt (221) to be threadedly connected. The fixing bolt (221) can pass through the through hole and be threadedly connected to the threaded hole.

6. The air-intake aluminum melt stirring device according to claim 4, characterized in that: The inner diameter of the relief hole (11) gradually decreases from top to bottom. A sealing ring (23) is provided on the lower surface of the positioning plate (21). When the sealing ring (23) is inserted into the relief hole (11), the side wall of the sealing ring (23) abuts against the side wall of the relief hole (11).

7. The air-intake-enabled aluminum melt stirring device according to claim 1, characterized in that: The stirring base (6) has several stirring blades (62) threadedly connected to its side wall, and the air outlet (61) is opened on the side wall of the stirring blade (62) away from its own rotation direction.

8. The air-intake aluminum melt stirring device according to claim 7, characterized in that: The stirring rod (3) includes a first rod (31) and a second rod (32) connected to each other. The first rod (31) is made of stainless steel at the top and the second rod (32) is made of ceramic at the bottom. The stirring seat (6) and the stirring blade (62) are also made of ceramic.

9. The air-intake-enabled aluminum melt stirring device according to claim 8, characterized in that: The first rod (31) and the second rod (32) are threaded together. The stirring rod (3) is provided with a reinforcing bolt (33) and a reinforcing nut (34). The reinforcing bolt can pass through the first rod (31) and the second rod (32) in sequence and be threaded together with the reinforcing nut (34).

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