A molten aluminum stirring degassing machine

Abstract

The utility model discloses a molten aluminum stirring degassing machine belongs to the field of degassing machine, the device includes: base, degassing bucket, degassing subassembly and defoaming subassembly. The degassing bucket is placed on the base upper end, is used for containing molten aluminum. The degassing subassembly is fixedly arranged on the base upper end, is used for the molten aluminum containing in the degassing bucket is stirred and degassed. The defoaming subassembly is arranged on the degassing bucket, is used for eliminating the bubble generated in the stirring and degassing process, and the defoaming subassembly includes the scooping out piece for scooping out the bubble and the crushing piece for crushing the bubble, and further crushing the bubble. The utility model discloses through the rotation of the roller, makes the convex point one and the convex point two cooperate each other and crushes the bubble flowing. At the same time, through the back-and-forth movement of the plate brush, further washes and crushes the bubble collected on the filter screen. Can avoid the bubble gathering on the liquid surface and forming the gas barrier, hinders the subsequent bubble floating channel, can avoid the floating bubble not crushing in time because the liquid surface undulates and re-rolls into the molten aluminum, and is dissolved in the molten aluminum.

Description

Technical Field

[0001] This utility model relates to the field of degassing machines, and in particular to an aluminum liquid stirring degassing machine. Background Technology

[0002] The aluminum molten metal agitator degasser is a key piece of equipment used in the aluminum alloy smelting process to remove hydrogen and inclusions from the melt. A high-speed rotating rotor breaks down inert gases into tiny bubbles, which are then evenly injected into the molten aluminum. Simultaneously, the rotor's rotation generates strong eddies, breaking down the oxide film on the surface of the molten aluminum and promoting the floating of inclusions to the surface.

[0003] Existing aluminum molten agitator degassing machines only agitate the aluminum molten material without any device to handle the bubbles generated during agitation. This results in a large number of bubbles floating on the surface of the aluminum molten material, obstructing the upward movement of subsequent bubbles. At the same time, bubbles remaining in the aluminum molten material may redissolve, causing unexploded hydrogen and residue from the bubbles to flow back into the aluminum molten material.

[0004] Therefore, this utility model proposes an aluminum liquid stirring and degassing machine. Utility Model Content

[0005] This invention provides an aluminum liquid stirring and degassing machine, which can solve the problem in the prior art that the lack of a bubble treatment device leads to the accumulation of a large number of bubbles, which may re-dissolve in the aluminum liquid.

[0006] An aluminum liquid stirring and degassing machine, comprising:

[0007] The system comprises a base, a degassing tank, a degassing assembly, and a defoaming assembly. The degassing tank, placed on top of the base, holds molten aluminum. The degassing assembly, fixedly mounted on top of the base, agitates and degasses the molten aluminum within the degassing tank. The defoaming assembly, mounted on the degassing tank, eliminates bubbles generated during the agitation and degassing process; the defoaming assembly includes a scooping component for scooping out and crushing bubbles, and a crushing component for further breaking up the bubbles.

[0008] The scooping component includes a rotating roller positioned above the side wall of the degassing tank; a rotating shaft is located on the side of the rotating roller closest to the inside of the degassing tank; arc-shaped plates are evenly distributed on the side wall of the rotating shaft; one end of the rotating roller is connected to a driving wheel; one end of the rotating shaft is connected to a driven wheel; the driving wheel and the driven wheel are meshed together. The crushing component includes a brush and a filter screen; the brush is driven by the scooping component to reciprocate on the upper part of the filter screen.

[0009] Preferably, the degassing assembly includes a vertical rod fixedly connected to the upper end of the base; a sliding rod fixedly connected to the upper end of the base is provided on one side of the vertical rod; sprockets are provided in pairs on the side wall of the vertical rod; the two sprockets are arranged along the height direction of the vertical rod, and a chain is meshed between the two sprockets; one of the sprockets is connected to the drive end of a motor set on the vertical rod; a slider is connected to the chain; the slider is also slidably connected to the sliding rod, and a connecting arm is fixedly connected to one side of the slider; a stirring rod is rotatably connected to the lower end of the connecting arm; a graphite rotor is connected to the lower end of the stirring rod.

[0010] Preferably, a collection chamber is fixedly connected to one side wall of the degassing tank; the lower end of the collection chamber is inclined toward the degassing tank.

[0011] Preferably, the scooping component includes a pair of housings fixedly disposed on the upper end of the degassing tank; each of the two housings is rotatably connected to a drive wheel; one of the drive wheels is connected to the drive end of a motor II disposed on the housing; and a rotating roller is connected between the two drive wheels.

[0012] Preferably, the rotating roller is positioned above one side wall of the degassing barrel, and a plurality of protrusions are evenly distributed thereon; a groove is provided at the upper end of the degassing barrel opposite to the rotating roller, and a plurality of protrusions are evenly distributed in the groove to cooperate with the rotating roller and the protrusions.

[0013] Preferably, multiple protrusions one and multiple protrusions two are arranged alternately.

[0014] Preferably, driven wheels are meshed with one side of each of the two driving wheels; both driven wheels are rotatably connected to the inner wall of the housing, and a rotating shaft is connected between the two driven wheels; multiple arc-shaped plates are uniformly fixedly connected to the side wall of the rotating shaft.

[0015] Preferably, a sector gear is also connected to the main shaft of the drive wheel; a slide rail is fixedly connected inside the housing; a sliding groove is provided on the slide rail; a square frame is fitted inside the sliding groove; the upper and lower ends of the square frame are provided with teeth, and are connected to the sector gear through the teeth; a connecting frame is also fixedly connected to the side wall of the square frame; the connecting frame is provided through the housing, and a brush is fixedly connected to the other end.

[0016] Preferably, the upper end of the collection chamber is equipped with a filter screen that works in conjunction with the brush.

[0017] Preferably, the side wall of the degassing tank is also provided with a valve; the valve is arranged opposite to the collection chamber.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] This aluminum molten metal stirring and degassing machine uses multiple arc-shaped plates to scoop floating air bubbles from the surface of the molten aluminum into a space between a rotating roller and a groove. The rotating roller then causes protrusions one and two to work together to crush the passing air bubbles. Simultaneously, a brush moves back and forth on the top of a filter screen to further wash and break up the air bubbles collected on the screen. This prevents air bubbles from accumulating on the liquid surface and forming a gas barrier that would obstruct the upward movement of subsequent air bubbles. It also prevents floating air bubbles that are not broken up in time from being re-entered into the molten aluminum due to surface fluctuations and re-dissolving into the molten aluminum. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the aluminum liquid stirring and degassing machine of this utility model;

[0021] Figure 2 This is a schematic diagram of the degassing component structure of this utility model;

[0022] Figure 3 This is a cross-sectional view of the degassing tank and defoaming component of this utility model;

[0023] Figure 4 This is a schematic diagram of the scooping component structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the crushing component structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base; 3. Degassing assembly; 31. Upright pole; 32. Slide rod; 33. Sprocket; 34. Motor 1; 35. Chain; 36. Slider; 37. Connecting arm; 38. Stirring rod; 39. Graphite rotor; 4. Degassing tank; 401. Collection chamber; 402. Valve; 5. Defoaming assembly; 51. Scooping component; 511. Housing; 512. Drive wheel; 513. Motor 2; 514. Rotating roller; 515. Protrusion 1; 516. Protrusion 2; 517. Driven wheel; 518. Rotating shaft; 519. Arc plate; 52. Crushing component; 521. Sector gear; 522. Slide rail; 523. Square frame; 524. Connecting frame; 525. Brush; 526. Filter screen. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0028] like Figure 1-5As shown, this utility model proposes an aluminum liquid stirring and degassing machine, including a base 1, a degassing tank 4, a degassing component 3, and a defoaming component 5. The degassing tank 4 is placed on the upper end of the base 1 and is used to hold the aluminum liquid. The degassing component 3 is fixedly installed on the upper end of the base 1 and is used to stir and degas the aluminum liquid contained in the degassing tank 4. The defoaming component 5 is installed on the degassing tank 4 and is used to eliminate the bubbles generated during the stirring and degassing process; the defoaming component 5 includes a scooping part 51 for scooping out and crushing the bubbles, and a crushing part 52 for further breaking up the bubbles.

[0029] The scooping component 51 includes a rotating roller 514 disposed above the side wall of the degassing tank 4; a rotating shaft 518 is provided on the side of the rotating roller 514 near the inside of the degassing tank 4; arc-shaped plates 519 are evenly provided on the side wall of the rotating shaft 518; a driving wheel 512 is connected to one end of the rotating roller 514; a driven wheel 517 is connected to one end of the rotating shaft 518; the driving wheel 512 and the driven wheel 517 are meshed together. The crushing component 52 includes a brush 525 and a filter screen 526; the brush 525 is driven by the scooping component 51 to reciprocate on the upper end of the filter screen 526.

[0030] Further explanation: The degassing assembly 3 includes a vertical rod 31 fixedly connected to the upper end of the base 1; a sliding rod 32 fixedly connected to the upper end of the base 1 is provided on one side of the vertical rod 31; sprockets 33 are provided in pairs on the side wall of the vertical rod 31; the two sprockets 33 are arranged along the height direction of the vertical rod 31, and a chain 35 is meshed between the two sprockets 33; one of the sprockets 33 is connected to the drive end of a motor 34 provided on the vertical rod 31; a slider 36 is connected to the chain 35; the slider 36 is also slidably connected to the sliding rod 32, and a connecting arm 37 is fixedly connected to one side of the slider 36; a stirring rod 38 is rotatably connected to the lower end of the connecting arm 37; a graphite rotor 39 is connected to the lower end of the stirring rod 38. A motor 3 is provided inside the connecting arm 37 to drive the stirring rod 38 and the graphite rotor 39 to rotate. This can pulverize inert gas into micron-sized bubbles, increase the gas-liquid contact area, and generate strong eddies, breaking the oxide film on the surface of the aluminum liquid, promoting the floating of inclusions and hydrogen diffusion.

[0031] To further explain, a collection chamber 401 is fixedly connected to one side wall of the degassing tank 4; the lower end of the collection chamber 401 is inclined toward the degassing tank 4. The collection chamber 401 can collect the molten aluminum and bubbles scooped out by the defoaming component 5.

[0032] Further explanation: The scooping component 51 includes a pair of housings 511 fixedly mounted on the upper end of the degassing tank 4; each of the two housings 511 is rotatably connected to a drive wheel 512; one of the drive wheels 512 is connected to the drive end of a motor 513 mounted on the housing 511; a rotating roller 514 is connected between the two drive wheels 512. The rotating roller 514 is located above one side wall of the degassing tank 4, and has a plurality of protrusions 515 evenly distributed on it; a groove is formed at the upper end of the degassing tank 4 opposite to the rotating roller 514, and a plurality of protrusions 516 are evenly distributed in the groove to cooperate with the rotating roller 514 and the protrusions 515. The motor 513 can drive the drive wheel 512 and the rotating roller 514 to rotate. As the rotating roller 514 rotates, the protrusions 515 and 516 cooperate to crush the flowing bubbles, breaking them up. At the same time, the rotation of the rotating roller 514 can drive the foam into the collection chamber 401.

[0033] To further explain, multiple protrusions 515 and 516 are staggered. This reduces the gap between protrusions 515 and 516, thus allowing for more thorough crushing of the air bubbles.

[0034] To further explain, driven wheels 517 are meshed with one side of each of the two driving wheels 512; both driven wheels 517 are rotatably connected to the inner wall of the housing 511, and a rotating shaft 518 is connected between the two driven wheels 517; multiple arc-shaped plates 519 are evenly fixedly connected to the side wall of the rotating shaft 518. By rotating the multiple arc-shaped plates 519 through the rotating shaft 518, the foam floating on the upper layer of the molten aluminum can be scooped into the gap between the rotating roller 514 and the groove at the upper end of the degassing tank 4.

[0035] Further explanation: A sector gear 521 is connected to the main shaft of the drive wheel 512; a slide rail 522 is fixedly connected inside the housing 511; a sliding groove is provided on the slide rail 522; a square frame 523 is fitted inside the sliding groove; both the upper and lower ends of the square frame 523 are provided with teeth, which mesh with the sector gear 521; a connecting frame 524 is also fixedly connected to the side wall of the square frame 523; the connecting frame 524 passes through the housing 511, and a brush 525 is fixedly connected to the other end. A filter screen 526 that cooperates with the brush 525 is provided at the upper end of the collection chamber 401. The filter screen 526 can collect the air bubbles that are not completely broken from the scooped-out piece 51, while the molten aluminum falls into the collection chamber 401. The rotation of the sector gear 521 can drive the square frame 523 and the brush 525 to move back and forth, thereby brushing back and forth on the upper end of the filter screen 526, further crushing the foam collected on the filter screen 526 and breaking it up.

[0036] By combining the scooping part 51 and the crushing part 52, the bubbles floating on the surface of the molten aluminum can be collected and completely broken up. This prevents the bubbles from accumulating on the surface of the liquid and forming a gas barrier that would obstruct the upward flow of subsequent bubbles. At the same time, it also prevents floating bubbles that are not broken in time from being re-rolled into the molten aluminum due to fluctuations in the liquid surface and from being re-dissolved in the molten aluminum.

[0037] To further explain, the side wall of the degassing tank 4 is also equipped with a valve 402; the valve 402 is arranged opposite to the collection chamber 401. Opening the valve 402 allows the aluminum liquid collected in the collection chamber 401 to flow back into the degassing tank 4, avoiding waste of aluminum liquid.

[0038] The working principle of this utility model is as follows: During operation, molten aluminum is first poured into the degassing tank 4. Simultaneously, motor 34 is started to drive the sprocket 33 to rotate, thereby driving the chain 35 to drive the slider 36 and connecting arm 37 to descend along the slide rod 32, immersing the graphite rotor 39 in the molten aluminum. Then, motor 3, built into the connecting arm 37, is started to drive the stirring rod 38 and graphite rotor 39 to rotate, stirring and degassing the molten aluminum. Next, motor 513 is started to drive the drive wheel 512 to rotate, thereby driving the driven wheel 517 and the rotating shaft 518 to rotate, causing multiple arc-shaped plates 519 to scoop the air bubbles floating on the surface of the molten aluminum into the space between the rotating roller 514 and the groove. The rotation of the drive wheel 512 simultaneously drives the rotating roller 514 to rotate, causing the first protrusion 515 and the second protrusion 516 to work together to crush the flowing air bubbles and guide the molten aluminum into the collection chamber 401. Motor 513 simultaneously drives sector gear 521 to rotate, thereby causing square frame 523 to reciprocate along slide rail 522, which in turn drives brush 525 to reciprocate on the upper end of filter screen 526, further brushing and breaking up the air bubbles collected on filter screen 526. Finally, valve 402 is opened, allowing the aluminum liquid collected in collection chamber 401 to flow back into degassing tank 4.

[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An aluminum liquid stirring and degassing machine, characterized in that, include Base (1); A degassing tank (4) is placed on the upper part of the base (1) to hold molten aluminum; A degassing assembly (3) is fixedly installed on the upper end of the base (1) for stirring and degassing the aluminum liquid contained in the degassing tank (4); And a defoaming assembly (5) is provided on the degassing tank (4) for eliminating bubbles generated during the stirring and degassing process; the defoaming assembly (5) includes a scooping part (51) for scooping out bubbles and crushing bubbles, and a crushing part (52) for further crushing bubbles. The scooping component (51) includes a rotating roller (514) disposed above the side wall of the degassing barrel (4); the rotating roller (514) is provided with a rotating shaft (518) on the side near the inside of the degassing barrel (4); the side wall of the rotating shaft (518) is uniformly provided with arc-shaped plates (519); one end of the rotating roller (514) is connected to a driving wheel (512); one end of the rotating shaft (518) is connected to a driven wheel (517); the driving wheel (512) and the driven wheel (517) are meshed together. The crushing component (52) includes a brush (525) and a filter screen (526); the brush (525) is driven to reciprocate on the upper end of the filter screen (526) by a scooping component (51).

2. The aluminum liquid stirring and degassing machine according to claim 1, characterized in that, The degassing assembly (3) includes a vertical rod (31) fixedly connected to the upper end of the base (1); a sliding rod (32) fixedly connected to the upper end of the base (1) is provided on one side of the vertical rod (31); a pair of sprockets (33) are provided on the side wall of the vertical rod (31); the two sprockets (33) are arranged along the height direction of the vertical rod (31), and a chain (35) is meshed between the two sprockets (33); one of the sprockets (33) is connected to the drive end of a motor (34) provided on the vertical rod (31); a slider (36) is connected to the chain (35); the slider (36) is also slidably connected to the sliding rod (32), and a connecting arm (37) is fixedly connected to one side of the slider (36); a stirring rod (38) is rotatably connected to the lower end of the connecting arm (37); a graphite rotor (39) is connected to the lower end of the stirring rod (38).

3. The aluminum liquid stirring and degassing machine according to claim 1, characterized in that, A collection chamber (401) is fixedly connected to one side wall of the degassing barrel (4); the lower end of the collection chamber (401) is inclined toward the degassing barrel (4).

4. The aluminum liquid stirring and degassing machine according to claim 3, characterized in that, The scooping component (51) includes a pair of housings (511) fixedly mounted on the upper end of the degassing barrel (4); each of the two housings (511) is rotatably connected to a drive wheel (512); one of the drive wheels (512) is connected to the drive end of a motor (513) mounted on the housing (511); and a rotating roller (514) is connected between the two drive wheels (512).

5. An aluminum liquid stirring and degassing machine according to claim 4, characterized in that, The rotating roller (514) is located above one side wall of the degassing barrel (4), and a plurality of protrusions (515) are evenly provided on it; a groove is provided at the upper end of the degassing barrel (4) opposite to the rotating roller (514), and a plurality of protrusions (516) that cooperate with the rotating roller (514) and protrusions (515) are evenly provided in the groove.

6. An aluminum liquid stirring and degassing machine according to claim 5, characterized in that, Multiple bumps (515) and multiple bumps (516) are alternately arranged.

7. An aluminum liquid stirring and degassing machine according to claim 4, characterized in that, Two driving wheels (512) are meshed with driven wheels (517) on one side; two driven wheels (517) are rotatably connected to the inner wall of the housing (511), and a rotating shaft (518) is connected between the two driven wheels (517); multiple arc-shaped plates (519) are uniformly fixedly connected to the side wall of the rotating shaft (518).

8. An aluminum liquid stirring and degassing machine according to claim 7, characterized in that, A sector gear (521) is also connected to the main shaft of the drive wheel (512); a slide rail (522) is fixedly connected inside the housing (511); a sliding groove is provided on the slide rail (522); a square frame (523) is fitted inside the sliding groove; the upper and lower ends of the square frame (523) are provided with teeth, and are connected to the sector gear (521) by meshing through the teeth; a connecting frame (524) is also fixedly connected to the side wall of the square frame (523); the connecting frame (524) is set through the housing (511), and a brush (525) is fixedly connected to the other end.

9. An aluminum liquid stirring and degassing machine according to claim 8, characterized in that, The upper end of the collection chamber (401) is provided with a filter screen (526) that works with the brush (525).

10. An aluminum liquid stirring and degassing machine according to claim 3, characterized in that, The side wall of the degassing tank (4) is also provided with a valve (402); the valve (402) is set opposite to the collection chamber (401).

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