Online degassing equipment for aluminum alloy production

Abstract

This utility model relates to the field of aluminum alloy production technology, specifically to an online degassing device for aluminum alloy production. The technical problem it aims to solve is to overcome the poor safety of slag removal in existing technologies. This is mainly achieved through the following technical solution: An online degassing device for aluminum alloy production includes a primary degassing chamber, a buffer chamber, and a secondary degassing chamber. The primary and secondary degassing chambers are equipped with heat-insulating covers on their tops. Each heat-insulating cover has multiple degassing devices. Each degassing device includes a ventilation component and two slag discharge components. The ventilation component includes a rotating motor, a rotating rod, and a rotating wheel, and is also connected to a gas supply device. The slag discharge components include a slag removal plate, a slag removal rod, and a slag removal drive component. Exhaust pipes are connected to the rear sides of the primary and secondary degassing chambers. The two degassing chambers ensure effective degassing. The degassing devices can safely remove slag without opening the covers and separate the slag promptly after removal. A buffer chamber is also provided to reduce the impact of temperature fluctuations.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy production technology, specifically to an online degassing device for aluminum alloy production. Background Technology

[0002] Aluminum is a silvery-white, lightweight metal with excellent ductility. It is commonly produced in rod, sheet, foil, powder, strip, and wire forms and has a wide range of applications. During the aluminum alloy smelting process, due to various unavoidable factors, the molten aluminum alloy contains varying concentrations of hydrogen atoms and fine inclusions. Therefore, it is necessary to refine the molten aluminum alloy to remove the hydrogen.

[0003] Currently, hydrogen and impurities are mostly removed by degassing machines. Degassing machines use a high-speed rotating rotor that sprays inert gas to break large inert gas bubbles into very fine bubbles and disperse them evenly in the molten metal. The surface of the inert bubbles comes into contact with the hydrogen and impurities in the molten metal, thereby bringing these harmful substances to the surface of the liquid. Therefore, slag removal is also required during degassing operations.

[0004] Existing box-type online degassing devices utilize rotating nozzles at the bottom of the box to spray air, with an insulated cover at the top. Slag removal either requires the operator to open the cover for slag discharge or uses a rotating device to remove slag without opening the cover, making the overall operation complex and highly dangerous. Queue-type degassing machines utilize rotating rotors within a quench for degassing and refining, offering advantages such as no residual aluminum and a small footprint. However, the aluminum liquid depth in quench-type degassing machines is shallower, resulting in shorter bubble residence time, thus its degassing efficiency is slightly lower than that of box-type degassing machines. Therefore, a safe and effective degassing device is needed to achieve the refining and purification of molten aluminum. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the defects of poor slag removal safety in the prior art, thereby providing an online degassing device for aluminum alloy production.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] An online degassing device for aluminum alloy production includes a primary degassing chamber, a buffer chamber, and a secondary degassing chamber arranged sequentially and connected to each other. The heights of the primary degassing chamber, buffer chamber, and secondary degassing chamber decrease sequentially. Each of the primary and secondary degassing chambers has a heat-insulating cover that is raised and lowered at the top. Each heat-insulating cover is equipped with multiple degassing devices that rise and fall with the cover. Each degassing device includes a venting component and two slag-discharging components. The slag-discharging components are located near the top of the venting component and are positioned opposite to it. The venting component includes a rotating motor, a rotating rod, and a rotating wheel. The rotating motor is located at the top of the rotating rod and on the insulation cover. The rotating motor drives the rotating rod to rotate. The rotating rod passes through the insulation cover and its axis is vertical. The rotating wheel is integrally set below the insulation cover and is fixed to the bottom of the rotating rod. The venting component is also connected to an air supply device through an air supply hose. The slag discharge component is hinged on the rotating rod and located below the insulation cover. The slag discharge component includes a slag removal plate, a slag removal rod, and a slag removal drive component. The slag removal drive component is set on the rotating rod. The slag removal plate and the slag removal rod are integrally set and controlled by the slag removal drive component.

[0008] By adopting the above technical solution, the molten aluminum first undergoes a first degassing operation in the primary degassing chamber, then is sent to the secondary degassing chamber through the buffer chamber for a second degassing operation, and finally discharged through the outlet pipe. During both degassing processes, the degassing device removes impurities from the surface of the molten aluminum. The degassing device rises and falls with the insulation cover. During the degassing operation, nitrogen is introduced through the venting component and rotates at high speed to become nitrogen bubbles, thereby carrying out hydrogen and impurities in the molten aluminum, achieving the purpose of purifying the molten aluminum. After the venting component has been running for a certain period of time, the slag discharge component is activated to scrape off the impurities from the surface of the molten aluminum. After scraping, the slag discharge component is separated from the surface of the molten aluminum to reduce the re-mixing of impurities into the molten aluminum. The overall process is safe to operate, and there is no need for the operator to open the insulation cover for slag removal. The slag discharge component is also easy to clean afterward. The two degassing operations can effectively improve the degassing and filtration effects, ensuring the quality of subsequent aluminum alloy production.

[0009] Furthermore, a fixing frame is provided on the rear side of both the primary degassing chamber and the secondary degassing chamber, corresponding to the heat preservation cover. A vertically oriented lead screw shaft is rotatably mounted on the fixing frame. A lifting motor with an output shaft connected to the lead screw shaft is provided on the top of the fixing frame. The heat preservation cover is threadedly connected to the lead screw shaft and is lifted and lowered on the lead screw shaft. A guide shaft with an axis parallel to the lead screw shaft is also provided on the fixing frame. The heat preservation cover also slides on the guide shaft. The lifting motor controls the rotation of the lead screw shaft.

[0010] By adopting the above technical solution, the movement of the insulation cover is controlled by a lifting motor. The rotation of the lifting motor drives the lead screw shaft to rotate, thereby raising and lowering the insulation cover. The guide shaft limits the smooth raising and lowering of the insulation cover, thus controlling the overall opening and closing operation of the insulation cover.

[0011] Furthermore, the rotating rod is a cylindrical structure with an air supply channel extending through its central axis. The air supply hose is connected to the top of the air supply channel. The diameter of the rotating wheel is larger than that of the rotating rod, and multiple air outlet grooves are arranged in a circular array along the center of the rotating wheel on the side away from the rotating rod. Each air outlet groove has an inclined air outlet hole extending through it. The air outlet hole is connected to the air supply channel, and the height of the side of the air outlet hole closer to the air supply channel is higher than the height of the side of the air outlet hole away from the air supply channel.

[0012] By adopting the above technical solution, the gas supply channel is connected to the gas outlet to achieve the purpose of nitrogen supply. The inclined gas outlet ensures that nitrogen can be smoothly introduced into the bottom of the aluminum liquid, increasing the contact stroke and facilitating thorough purification of the aluminum liquid. On the other hand, the inclined gas outlet can also reduce the seepage of aluminum liquid and prevent the gas outlet from being blocked by aluminum liquid.

[0013] Furthermore, a slag-blocking ring is provided in the middle of the rotating rod, and the slag discharge component is located above the slag-blocking ring. The slag removal driving component includes a slag discharge motor, a slag discharge main gear, and a slag discharge driven gear. The slag discharge motor is mounted on the rotating rod and drives the slag discharge main gear to rotate. The axis of the slag discharge main gear is parallel to the axis of the rotating rod. Both the slag discharge main gear and the slag discharge driven gear are bevel gears and are meshed with each other.

[0014] By adopting the above technical solution, the bottom of the slag-blocking ring contacts the upper surface of the molten aluminum, which limits the height of the molten aluminum on the one hand, and reduces the impact of impurities such as inclusions on the driving components above on the other hand; the slag removal driving component controls the movement of the slag removal rod to prevent the slag removal plate from always being mixed in the molten aluminum, which would prevent the impurities from being separated from the molten aluminum in time and affect the quality of the molten aluminum in the future.

[0015] Furthermore, one end of the slag removal rod is fixed to the slag discharge driven gear, and the other end is fixed to the middle of the top of the slag removal plate. The slag removal plate is arranged radially along the slag-blocking ring and has a slag inlet on one side in the length direction.

[0016] By adopting the above technical solution, impurities enter the slag removal plate through the slag inlet. Then, the slag removal rod is controlled by the slag removal drive to lift the slag removal plate, separating the collected impurities from the molten aluminum and reducing the impact on subsequent operations.

[0017] Furthermore, a primary support frame is provided below the primary degassing chamber, a buffer frame is provided below the buffer chamber, and a secondary support frame is provided below the secondary degassing chamber; a primary outlet pipe communicating with the buffer chamber is provided at the bottom of the primary degassing chamber near the buffer chamber, a secondary outlet pipe communicating with the secondary degassing chamber is provided at the bottom of the buffer chamber near the secondary degassing chamber, the secondary outlet pipe is connected to the secondary degassing chamber near the top, and a liquid outlet pipe is connected to the bottom of the secondary degassing chamber on the side away from the buffer chamber.

[0018] By adopting the above technical solution, the primary support frame provides support for the primary degassing chamber and raises the primary degassing chamber to facilitate matching with the subsequent buffer chamber and secondary degassing chamber; the primary outlet pipe, secondary outlet pipe and liquid outlet pipe all enable the flow of aluminum liquid and each pipe is equipped with a control valve to control the opening and closing.

[0019] Furthermore, the bottom of the buffer chamber is an inclined structure, and the height of the side of the bottom of the buffer chamber near the primary degassing chamber is higher than the height of the side of the bottom of the buffer chamber near the secondary degassing chamber. A horizontal primary filter screen is also installed inside the buffer chamber near the bottom, and a heating device is installed outside the buffer chamber. A secondary filter screen is also installed on the side of the secondary degassing chamber near the secondary outlet pipe. The longitudinal section of the secondary filter screen is L-shaped and the opening faces the secondary outlet pipe.

[0020] By adopting the above technical solution, the buffer chamber has an inclined structure, which facilitates the overall flow of molten aluminum into the secondary degassing chamber and reduces residual aluminum. The setting of primary and secondary filters enables multiple purifications of the molten aluminum, improving the quality of subsequent molten aluminum.

[0021] Furthermore, both the primary degassing chamber and the secondary degassing chamber are connected to an exhaust pipe near the rear of the top. The exhaust pipe is also equipped with a heat exchange device, which connects the exhaust pipe to the processing device. The air supply hose is also connected to the ventilation component via the heat exchange device.

[0022] By adopting the above technical solution, the exhaust pipe discharges excess gas from the primary and secondary degassing chambers, achieving pressure balance between the primary and secondary degassing chambers. The high temperature of the gas discharged from the exhaust pipe can preheat the nitrogen gas used for degassing, thereby reducing the temperature drop caused by the nitrogen gas being too cold and ensuring smooth degassing.

[0023] In summary, the technical solution of this utility model has the following advantages:

[0024] 1. The online degassing equipment for aluminum alloy production provided by this utility model involves the aluminum liquid undergoing a first degassing operation in a primary degassing chamber, followed by a second degassing operation via a buffer chamber, and finally discharge through an outlet pipe. During both degassing processes, impurities on the surface of the aluminum liquid are removed by the degassing device. The overall process is safe to operate, eliminating the need for the operator to open the insulation cover for slag removal. The subsequent slag discharge components are also easy to clean. The two degassing operations effectively improve the degassing and filtration effects, ensuring the quality of subsequent aluminum alloy production.

[0025] 2. The online degassing equipment for aluminum alloy production provided by this utility model uses a slag removal drive component to control the movement of the slag removal rod, thereby preventing the slag removal plate from being constantly mixed in the molten aluminum and failing to separate impurities from the molten aluminum in a timely manner, which would affect the quality of the subsequent molten aluminum.

[0026] 3. The online degassing equipment for aluminum alloy production provided by this utility model utilizes the waste heat of the exhaust pipe, reduces the temperature drop caused by the excessive cooling of nitrogen gas introduced into the gas supply device, and ensures smooth degassing. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of an online degassing device for aluminum alloy production provided in one embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the Gongqi device and heat exchange device provided in one embodiment of the present utility model.

[0030] Figure 3 This is a cross-sectional structural schematic diagram of an online degassing device for aluminum alloy production provided in one embodiment of the present invention;

[0031] Figure 4 This is a partial structural schematic diagram of the degassing device provided in one embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Primary degassing chamber; 11. Primary support frame; 2. Buffer chamber; 21. Buffer frame; 22. Primary outlet pipe; 23. Secondary outlet pipe; 24. Primary filter screen; 3. Secondary degassing chamber; 31. Secondary support frame; 32. Liquid outlet pipe; 33. Secondary filter screen; 4. Insulation cover; 5. Degassing device; 6. Ventilation components; 61. Rotary motor; 62. Rotating rod; 621. Air delivery channel; 622. Slag-blocking ring; 63. Rotating wheel 631. Air outlet groove; 632. Air outlet hole; 7. Slag discharge component; 71. Slag removal plate; 711. Slag inlet; 72. Slag removal rod; 73. Slag removal drive component; 731. Slag discharge motor; 732. Slag discharge main gear; 733. Slag discharge driven gear; 8. Air supply device; 81. Air supply hose; 9. Fixing frame; 91. Lead screw shaft; 92. Lifting motor; 93. Guide shaft; 10. Heat exchange device; 101. Exhaust pipe. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0035] An online degassing device for aluminum alloy production, such as Figure 1 and Figure 3 As shown, the system includes a primary degassing chamber 1, a buffer chamber 2, and a secondary degassing chamber 3, arranged sequentially from left to right and connected to each other. The heights of the primary degassing chamber 1, buffer chamber 2, and secondary degassing chamber 3 decrease sequentially. A primary support frame 11 is installed below the primary degassing chamber 1, a buffer frame 21 is installed below the buffer chamber 2, and a secondary support frame 31 is installed below the secondary degassing chamber 3. The primary support frame 11 provides support for the primary degassing chamber 1 and raises it to facilitate matching with the subsequent buffer chamber 2 and secondary degassing chamber 3. Both the primary degassing chamber 1 and the secondary degassing chamber 3 have heat-insulating covers 4 that are raised and lowered at the top. Each heat-insulating cover 4 is equipped with multiple degassing devices 5 that rise and fall with the heat-insulating cover 4. The two degassing chambers ensure degassing effectiveness. The degassing devices 5 can safely remove slag without opening the covers and separate the slag promptly after removal. A buffer chamber 2 is also provided to reduce the impact of temperature drops.

[0036] A primary outlet pipe 22, connected to buffer chamber 2, is located at the bottom of the primary degassing chamber 1 near buffer chamber 2. A secondary outlet pipe 23, connected to secondary degassing chamber 3, is located at the bottom of the buffer chamber 2 near secondary degassing chamber 3. The secondary outlet pipe 23 is connected to the secondary degassing chamber 3 near its top. A liquid outlet pipe 32 is connected to the bottom of the secondary degassing chamber 3 away from buffer chamber 2. The primary outlet pipe 22, secondary outlet pipe 23, and liquid outlet pipe 32 all allow the flow of molten aluminum, and each pipe is equipped with a control valve to control its opening and closing.

[0037] like Figure 1 and Figure 3 As shown, a fixing frame 9 is provided on the rear side of both the primary degassing chamber 1 and the secondary degassing chamber 3, corresponding to the insulation cover 4. A vertically oriented lead screw shaft 91 is rotatably mounted on the fixing frame 9. A lifting motor 92 with its output shaft connected to the lead screw shaft 91 is provided on the top of the fixing frame 9. The insulation cover 4 is threadedly connected to the lead screw shaft 91 and is lifted and lowered on the lead screw shaft 91. The fixing frame 9 also has a guide shaft 93 with its axis parallel to the lead screw shaft 91. The insulation cover 4 also slides on the guide shaft 93. The lifting motor 92 controls the rotation of the lead screw shaft 91. The movement of the insulation cover 4 is controlled by the lifting motor 92. The rotation of the lifting motor 92 drives the lead screw shaft 91 to rotate, thereby raising and lowering the insulation cover 4. The guide shaft 93 restricts the smooth raising and lowering of the insulation cover 4, thereby controlling the overall opening and closing operation of the insulation cover 4.

[0038] like Figure 3 As shown, the bottom of buffer chamber 2 is inclined, with the left side of the bottom of buffer chamber 2 being higher than the right side. A heating device is installed outside buffer chamber 2. The inclined structure of buffer chamber 2 facilitates the overall flow of molten aluminum into the secondary degassing chamber 3, reducing residual aluminum residue.

[0039] A horizontal primary filter 24 is installed near the bottom of the buffer chamber 2, and a secondary filter 33 is installed on the side of the secondary degassing chamber 3 near the secondary outlet pipe 23. The longitudinal section of the secondary filter 33 is L-shaped and the opening faces the secondary outlet pipe 23.

[0040] like Figure 2 and Figure 3 As shown, exhaust pipes 101 are connected to the rear side of both the primary degassing chamber 1 and the secondary degassing chamber 3 near the top. A heat exchange device 10 is installed on the exhaust pipe 101, which connects to the processing device. The gas supply hose 81 also connects to the ventilation component 6 via the heat exchange device 10. The exhaust pipe 101 discharges excess gas from the primary degassing chamber 1 and the secondary degassing chamber 3, achieving pressure balance within them. The higher temperature of the gas discharged from the exhaust pipe 101 preheats the nitrogen gas used in the degassing operation, reducing the temperature drop caused by nitrogen supercooling and ensuring smooth degassing.

[0041] like Figure 1 , Figure 3 and Figure 4 As shown, each degassing device 5 includes a venting component 6 and two slag discharge components 7. The slag discharge components 7 are located near the top of the venting component 6 and are positioned opposite to it. The venting component 6 includes a rotating motor 61, a rotating rod 62, and a rotating wheel 63. The rotating motor 61 is mounted on the insulation cover 4 and drives the rotating rod 62 to rotate. The rotating motor 61 and the rotating rod 62 are driven by a belt or by gear meshing. The rotating rod 62 passes through the insulation cover 4 and is vertically oriented. The rotating wheel 63 is integrally mounted below the insulation cover 4 and fixed to the bottom of the rotating rod 62. The venting component 6 is also connected to a gas supply device 8 via a gas supply hose 81.

[0042] The slag discharge component 7 is hinged on the rotating rod 62 and located below the insulation cover 4. The slag discharge component 7 includes a slag removal plate 71, a slag removal rod 72 and a slag removal drive component 73. The slag removal drive component 73 is mounted on the rotating rod 62. The slag removal plate 71 and the slag removal rod 72 are integrally mounted and controlled by the slag removal drive component 73.

[0043] like Figure 3 and Figure 4As shown, the rotating rod 62 has a cylindrical structure with a gas supply channel 621 running through its central axis. The gas supply hose 81 is connected to the top of the gas supply channel 621. The rotating wheel 63, with a diameter larger than the rotating rod 62 and located away from the rotating rod 62, has multiple gas outlet grooves 631 arranged in a circular array along the center of the rotating wheel 63. Each gas outlet groove 631 has an inclined gas outlet hole 632 running through it. The gas outlet hole 632 is connected to the gas supply channel 621, and the inner height of the gas outlet hole 632 is higher than the outer height. The connection between the gas supply channel 621 and the gas outlet hole 632 enables the introduction of nitrogen. The inclined gas outlet hole 632 ensures that nitrogen can be smoothly introduced to the bottom of the molten aluminum, increasing the contact stroke and facilitating thorough purification of the molten aluminum. Furthermore, the inclined gas outlet hole 632 also reduces the seepage of molten aluminum, preventing blockage at the gas outlet hole 632.

[0044] A slag-blocking ring 622 is provided in the middle of the rotating rod 62. The bottom of the slag-blocking ring 622 contacts the upper surface of the aluminum liquid. On the one hand, it limits the height of the aluminum liquid, and on the other hand, it reduces the impact of inclusions and other impurities on the driving components above.

[0045] like Figure 3 and Figure 4 As shown, the slag discharge component 7 is positioned above the slag retaining ring 622. The slag removal drive component 73 includes a slag discharge motor 731, a slag discharge main gear 732, and a slag discharge driven gear 733. The slag discharge motor 731 is mounted on the rotating rod 62 and drives the slag discharge main gear 732 to rotate. The axis of the slag discharge main gear 732 is parallel to the axis of the rotating rod 62. Both the slag discharge main gear 732 and the slag discharge driven gear 733 are bevel gears and are meshed with each other. The slag removal drive component 73 controls the movement of the slag removal rod 72, preventing the slag removal plate 71 from always being mixed in the molten aluminum, thus ensuring timely separation of impurities from the molten aluminum and affecting the subsequent quality of the molten aluminum.

[0046] One end of the slag removal rod 72 is fixed to the slag discharge driven gear 733, and the other end is fixed to the middle of the top of the slag removal plate 71. The slag removal plate 71 is arranged radially along the slag retaining ring 622, and has a slag inlet 711 on one side along its length. Impurities enter the slag removal plate 71 through the slag inlet 711. Then, the slag removal rod 72 is controlled by the slag removal drive component 73 to lift the slag removal plate 71, separating the collected impurities from the molten aluminum and reducing the impact on subsequent operations.

[0047] The working principle and usage of this online degassing equipment for aluminum alloy production are as follows: Molten aluminum is first fed into the primary degassing chamber 1. The insulation cover 4 descends and degassing is performed through the ventilation component 6. After a period of ventilation, the slag discharge component 7 is activated, and the slag discharge motor 731 controls the slag discharge main gear 732 to rotate, thereby rotating the slag removal rod 72 and the slag removal plate 71 and bringing them into contact with the upper surface of the molten aluminum. The slag removal plate 71 then rotates with the rotating rod 62 to collect impurities. After a certain period of collection, the slag removal plate 71 is separated from the surface of the molten aluminum. After primary degassing, the molten aluminum is then fed into the secondary degassing chamber 3 through the buffer chamber 2 for secondary degassing. During secondary degassing, the degassing device 5 in the secondary degassing chamber 3 is also activated. During the conveying of molten aluminum, the primary filter screen 24 and the secondary filter screen 33 purify the molten aluminum multiple times.

[0048] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An online degassing device for aluminum alloy production, characterized in that, The system includes a primary degassing chamber (1), a buffer chamber (2), and a secondary degassing chamber (3) arranged sequentially and connected to each other. The heights of the primary degassing chamber (1), the buffer chamber (2), and the secondary degassing chamber (3) decrease sequentially. Each of the primary degassing chamber (1) and the secondary degassing chamber (3) has a heat-insulating cover (4) that is raised and lowered on its top. Each heat-insulating cover (4) has multiple degassing devices (5) that rise and fall with it. Each degassing device (5) includes a ventilation component (6) and two slag discharge components (7). The slag discharge components (7) are located near the top of the ventilation component (6) and are positioned opposite to it. The ventilation component (6) includes a rotating motor (61), a rotating rod (62), and a rotating wheel (63). The rotating motor (61) is located on top of the rotating rod (62) and has... The rotating motor (61) drives the rotating rod (62) to rotate on the heat insulation cover (4). The rotating rod (62) passes through the heat insulation cover (4) and its axis is set vertically. The rotating wheel (63) is integrally set below the heat insulation cover (4) and the rotating wheel (63) is fixed to the bottom of the rotating rod (62). The ventilation component (6) is also connected to the air supply device (8) through the air supply hose (81). The slag discharge component (7) is hinged on the rotating rod (62) and located below the heat insulation cover (4). The slag discharge component (7) includes a slag removal plate (71), a slag removal rod (72) and a slag removal drive component (73). The slag removal drive component (73) is set on the rotating rod (62). The slag removal plate (71) and the slag removal rod (72) are integrally set and controlled by the slag removal drive component (73).

2. The online degassing equipment for aluminum alloy production according to claim 1, characterized in that, The primary degassing chamber (1) and the secondary degassing chamber (3) are each equipped with a fixing frame (9) corresponding to the heat insulation cover (4) on the rear side. A vertically oriented lead screw shaft (91) is rotatably mounted on the fixing frame (9). A lifting motor (92) with an output shaft connected to the lead screw shaft (91) is provided on the top of the fixing frame (9). The heat insulation cover (4) is threadedly connected to the lead screw shaft (91) and is lifted and lowered on the lead screw shaft (91). The fixing frame (9) is also equipped with a guide shaft (93) with an axis parallel to the lead screw shaft (91). The heat insulation cover (4) also slides on the guide shaft (93). The lifting motor (92) controls the rotation of the lead screw shaft (91).

3. The online degassing equipment for aluminum alloy production according to claim 2, characterized in that, The rotating rod (62) is a cylindrical structure with an air supply channel (621) extending through its center along the axis. The air supply hose (81) is connected to the top of the air supply channel (621). The rotating wheel (63) has a diameter larger than that of the rotating rod (62) and has multiple air outlet grooves (631) arranged in a circular array along the center of the rotating wheel (63) on the side away from the rotating rod (62). Each air outlet groove (631) has an inclined air outlet hole (632) extending through it. The air outlet hole (632) is connected to the air supply channel (621). The height of the side of the air outlet hole (632) closer to the air supply channel (621) is higher than the height of the side of the air outlet hole (632) away from the air supply channel (621).

4. The online degassing equipment for aluminum alloy production according to claim 3, characterized in that, A slag-blocking ring (622) is provided in the middle of the rotating rod (62), and the slag discharge component (7) is provided above the slag-blocking ring (622). The slag removal driving component (73) includes a slag discharge motor (731), a slag discharge main gear (732), and a slag discharge driven gear (733). The slag discharge motor (731) is mounted on the rotating rod (62) and drives the slag discharge main gear (732) to rotate. The axis of the slag discharge main gear (732) is parallel to the axis of the rotating rod (62). The slag discharge main gear (732) and the slag discharge driven gear (733) are both bevel gears and are meshed with each other.

5. The online degassing equipment for aluminum alloy production according to claim 4, characterized in that, One end of the slag removal rod (72) is fixed to the slag discharge driven gear (733), and the other end is fixed to the middle of the top of the slag removal plate (71). The slag removal plate (71) is arranged radially along the slag-blocking ring (622) and has a slag inlet (711) on one side in the length direction.

6. The online degassing equipment for aluminum alloy production according to claim 1, characterized in that, A primary support frame (11) is provided below the primary degassing chamber (1), a buffer frame (21) is provided below the buffer chamber (2), and a secondary support frame (31) is provided below the secondary degassing chamber (3). A primary outlet pipe (22) communicating with the buffer chamber (2) is provided at the bottom of the side of the primary degassing chamber (1) near the buffer chamber (2). A secondary outlet pipe (23) communicating with the secondary degassing chamber (3) is provided at the bottom of the side of the buffer chamber (2) near the secondary degassing chamber (3). The secondary outlet pipe (23) is connected to the secondary degassing chamber (3) near the top. A liquid outlet pipe (32) is connected to the bottom of the side of the secondary degassing chamber (3) away from the buffer chamber (2).

7. The online degassing equipment for aluminum alloy production according to claim 6, characterized in that, The bottom of the buffer chamber (2) is inclined. The height of the side of the bottom of the buffer chamber (2) near the primary degassing chamber (1) is higher than the height of the side of the bottom of the buffer chamber (2) near the secondary degassing chamber (3). A horizontal primary filter screen (24) is also provided in the buffer chamber (2) near the bottom. A heating device is provided outside the buffer chamber (2). A secondary filter screen (33) is also provided in the secondary degassing chamber (3) near the secondary outlet pipe (23). The longitudinal section of the secondary filter screen (33) is L-shaped and the opening faces the secondary outlet pipe (23).

8. The online degassing equipment for aluminum alloy production according to claim 1, characterized in that, Both the primary degassing chamber (1) and the secondary degassing chamber (3) are connected to an exhaust pipe (101) near the rear of the top. The exhaust pipe (101) is also equipped with a heat exchange device (10). The exhaust pipe (101) is connected to the processing device through the heat exchange device (10). The air supply hose (81) is also connected to the ventilation component (6) through the heat exchange device (10).

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