Molten aluminum degassing machine and degassing method

Abstract

This invention discloses an aluminum molten metal degassing machine and degassing method, including a heat-insulating tank. The heat-insulating tank has a filtration mechanism inside, which includes a frustum. The outer surface of the frustum is movably connected to the interior of the heat-insulating tank. A storage cavity is formed inside the frustum. Through-holes and connecting holes are formed on the outer surface of the frustum, respectively communicating with the storage cavity and the interior of the heat-insulating tank. A paddle is provided outside the frustum, and its outer surface is rotatably connected to the interior of the heat-insulating tank. This invention relates to the field of metal smelting technology and solves the problems of existing aluminum molten metal degassing machines, which suffer from large structural volume leading to reduced aluminum molten metal processing capacity, thus increasing processing costs and reducing processing efficiency. Furthermore, the agitation action causes impurities to move with the aluminum molten metal, resulting in poor filtration effect and efficiency, and subsequent cleaning of impurities is time-consuming and labor-intensive.

Description

Technical Field

[0001] This invention relates to the field of metal smelting technology, specifically to an aluminum liquid degassing machine and degassing method. Background Technology

[0002] In aluminum molten metal degassing, the goal is to remove as much hydrogen as possible from the molten aluminum using as little inert gas as possible. However, current aluminum molten metal degassing machines produce few bubbles and large bubbles after injecting inert gas, which can easily affect the degassing effect. Patent CN118581326A discloses an aluminum molten metal degassing machine and degassing method, including a machine base; a fixed slide rail is fixedly connected to the top of the machine base; an electric slider is slidably connected to the outside of the fixed slide rail; multiple graphite turntables rotate rapidly with the connecting frame, dispersing the bubbles formed by the inert gas into a large number of fine bubbles, improving the degassing effect on the aluminum molten metal; and a second fixed frame, in conjunction with a first filter plate, agitates and filters the surface of the aluminum molten metal, collecting impurities from the surface.

[0003] While this device possesses the aforementioned advantages, it still has certain drawbacks in practical use: When filtering impurities and breaking up bubbles in molten aluminum, it requires vertically setting up a second-order fixing frame and multiple sets of first-order fixing frames. Firstly, the large volume of these multiple sets of fixing frames reduces the capacity of the molten aluminum to be processed inside the insulation tank, thus increasing processing costs and reducing efficiency. Secondly, the surface scraping of the molten aluminum using the second-order fixing frame for impurity filtration results in poor filtration efficiency and effectiveness due to the agitation causing impurities to move with the molten aluminum. Furthermore, disassembling and cleaning multiple second-order fixing frames after use is time-consuming and labor-intensive. Therefore, solutions are needed to address the existing problems with existing molten aluminum degassing machines. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an aluminum liquid degassing machine and degassing method. It solves the problems of existing aluminum liquid degassing machines having a large structural volume, which reduces the amount of aluminum liquid that can be processed, thereby increasing processing costs and reducing processing efficiency. At the same time, the stirring action causes impurities to move with the aluminum liquid, resulting in poor filtration effect and efficiency, and subsequent cleaning of impurities is also time-consuming and labor-intensive.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an aluminum liquid degassing machine, comprising an insulated tank, wherein a filtration mechanism is provided inside the insulated tank, the filtration mechanism comprising a frustum, the outer surface of which is movably connected to the interior of the insulated tank, a storage cavity being formed inside the frustum, and through filter holes and connecting holes being formed on the outer surface of the frustum, the interiors of which are respectively connected to the storage cavity and the interior of the insulated tank; and a paddle being provided outside the frustum, the outer surface of which is connected to the interior of the insulated tank. The impeller is connected in a dynamic manner. The shaft end of the impeller extends into the interior of the storage cavity through a connecting hole. A pump tube is sleeved on the outside of the impeller. The outer surface of the pump tube is threadedly connected to the inside of the connecting hole. One end of the pump tube extends into the interior of the storage cavity. A stop plate is fixedly connected to the shaft end of the impeller. The outer surface of the stop plate is rotatably connected to the interior of the storage cavity. A stop bar is fixedly connected to the outer surface of the stop plate. One end of the stop bar abuts against one end of the pump tube. A through suction hole is opened on the outer arc surface of the other end of the pump tube. The interior of the suction hole is connected to the interior of the insulation tank.

[0006] Preferably, the shaft end of the blade is hollow, and a rotary connector is provided at the shaft end of the blade, with a spring tube passing through the interior of the rotary connector.

[0007] Preferably, a support assembly is provided on the outside of the frustum. The support assembly includes a sealing plate. The outer surface of the sealing plate is movably connected to the inside of the insulation barrel. A fixed tube is fixedly connected to the outer surface of the sealing plate. A rubber sleeve is fixedly connected to one end of the fixed tube. A connecting tube is movably connected to one end of the rubber sleeve. One end of the connecting tube is fixedly connected through the body of the frustum and extends into the interior of the storage cavity. A threaded ring is fixedly connected to one end of the rubber sleeve. The outer surface of the threaded ring is threadedly connected to the interior of the other end of the connecting tube.

[0008] Preferably, the body of the sealing plate is rotatably connected to the shaft end of the blade, and a rotating plate is rotatably connected inside the sealing plate, the body of the rotating plate being fixedly connected to the shaft end of the blade.

[0009] Preferably, a material control unit is provided on the outside of the sealing plate. The material control unit includes a feeding pipe. One end of the feeding pipe is fixedly connected to the body of the heat preservation barrel and extends into the interior of the heat preservation barrel. A hopper is provided below one end of the feeding pipe. A feed pipe is connected through the interior of the hopper. One end of the feed pipe is fixedly connected to the body of the frustum and extends into the interior of the storage cavity.

[0010] Preferably, the hopper is provided with a fixed frame on its exterior, the outer surface of the fixed frame is fixedly connected to the outer surface of the sealing plate, a rotary cylinder is fixedly connected to the outer surface of the fixed frame, a drive motor is fixedly connected to the outer surface of the fixed frame, a drive gear is fixedly connected to the output end of the drive motor, a transmission gear meshes with the outer surface of the drive gear, and the body of the transmission gear is fixedly connected to the outer surface of the blade through the drive gear.

[0011] Preferably, the connecting pipe is provided with a limiting unit on its exterior. The limiting unit includes a clamping strip, which is fixedly disposed on both sides of the outer surface of the connecting pipe. The outer surfaces of the clamping strips on both sides are slidably connected to the outer surface of the fixed pipe. The body of the clamping strip has a through clamping groove, and a clamping block is slidably connected inside the clamping groove. The outer surface of the clamping block is movably connected to the outer surface of the fixed pipe. A magnetic coil is movably connected to the outside of the clamping strip by magnetic force. The outer surface of the magnetic coil is embedded and fixedly connected to the body of the sealing plate.

[0012] Preferably, a push bar is fixedly connected to the outer surface of the clamping block, the outer surface of the push bar is movably connected to the outer surface of the clamping bar, a slider is fixedly connected to one end of the push bar, the outer surface of the slider is slidably connected to the inside of the insulation barrel, a slide rail is slidably connected to the outer surface of the slider, and the outer surface of the slide rail is fixedly connected to the outer surface of the sealing plate.

[0013] This invention also discloses a degassing method for an aluminum liquid degassing machine, specifically including the following steps: Step 1: Place the truncated cone around the outside of the blade shaft end through the connecting hole and connecting pipe. Then connect the connecting pipe to the rubber sleeve and the fixed pipe through the threaded connection with the bolt ring. At the same time, make the clamping bars on both sides fit into the fixed pipe. Then the slider slides along the slide rail, so that the push bar drives the clamping block to slide into the clamping groove. By fitting into the fixed pipe, the clamping bars limit the truncated cone. Next, put the pump pipe around the outside of the blade and let one end of it enter the inside of the storage cavity through the threaded connection with the connecting hole and abut against the abutment bar. Step 2: The external lifting mechanism uses a rotating cylinder and a fixed frame to drive the sealing plate, the frustum, the pump pipe, and the paddle into the interior of the insulation barrel. At the same time, the sealing plate seals the opening of the insulation barrel. Then, the output end of the rotating cylinder rotates, and through the action of the fixed frame and the sealing plate, the hopper moves to the bottom of one end of the feeding pipe. Then, the aluminum liquid enters the interior of the storage chamber through the feeding pipe, the hopper, and the feed pipe. It falls into the interior of the insulation barrel through the filter holes, and the filter holes trap iron oxide impurities in the aluminum liquid inside the storage chamber. Step 3: The drive motor drives the blade to rotate through the meshing of the drive gear and transmission gear. First, the aluminum liquid is pumped back into the storage chamber through the suction hole and one end of the pump pipe for repeated filtration. Second, the external gas supply device blows inert gas onto the aluminum liquid through the spring tube, rotary connector and hollow part of the blade shaft end to remove hydrogen. During the process of removing hydrogen, the shearing force of the blade, the tearing force of the bar and the filter hole can disperse the bubbles generated by the inert gas into a large number of fine bubbles.

[0014] Beneficial effects This invention provides an aluminum molten metal degassing machine and degassing method. Compared with the prior art, it has the following advantages: (1) By setting up a filtration mechanism, the aluminum liquid can be pumped into the storage chamber of the frustum by the rotation of the blade and the action of the pump tube. The aluminum liquid is then repeatedly filtered by the filter holes. Since the blade shaft end is hollow, the inert gas can be blown onto the aluminum liquid to remove hydrogen by the action of the rotary connector and the spring tube. At the same time, during the pumping process, the air bubbles can be effectively dispersed by the shearing force of the blade, the tearing force of the bar and the filter holes, thereby improving their dispersion and thus improving the removal effect and efficiency of hydrogen. At the same time, only the frustum structure is used for filtration. After use, the efficiency and convenience of cleaning iron oxide impurities in the storage chamber can be improved by disassembling the frustum and the pump tube separately.

[0015] (2) By setting up support components, the use of fixed pipes, rubber sleeves, screw rings and connecting pipes can facilitate the quick installation and fixation of the truncated cone. At the same time, the sealing plate can be used to drive the truncated cone to rise and fall, thus facilitating the entry and exit of the truncated cone inside the insulation tank for the purpose of filtering out aluminum liquid. It also facilitates the subsequent disassembly of the truncated cone to clean iron oxide impurities inside the storage chamber. Meanwhile, the rubber sleeve itself can be deformed and stretched to facilitate the connecting pipe to drive the truncated cone to move axially. The inertia and vibration generated by the movement of the truncated cone can prevent impurities from clogging the filter holes, thereby improving the aluminum liquid processing capacity.

[0016] (3) By setting up a material control component, the combination of a fixed frame and a rotary cylinder can drive the truncated cone to enter and exit the insulation barrel through the sealing plate, and at the same time drive the sealing plate to drive the truncated cone to rotate, so that the hopper and the feed pipe are aligned and connected, thus facilitating the addition of aluminum liquid into the storage chamber for filtration. Furthermore, through the vertical transmission of the drive motor, drive gear and transmission gear, while driving the blade to rotate, it is also convenient to provide inert gas through the rotary connector, so that the removal of hydrogen and the filtration of impurities can be carried out simultaneously, thereby improving the processing efficiency and reducing the cost.

[0017] (4) By setting a limiting unit, the clamping strip and the fixed tube are used to avoid the connecting tube from swinging left and right. At the same time, the magnetic attraction of the clamping strip and the magnetic coil allows the connecting tube to drive the axial movement of the truncated cone, thereby avoiding the problem of the filter hole being blocked by impurities. Furthermore, the slider and pusher are used to drive the clamping strip into the clamping groove, which can limit the radial movement of the connecting tube and limit the axial movement of the truncated cone, thereby ensuring the stability of the axial movement of the truncated cone and the convenience of disassembling and assembling the truncated cone. Attached Figure Description

[0018] Figure 1 This is a perspective view of the internal structure of the present invention; Figure 2 This is a perspective view of the internal structure of the frustum of the present invention; Figure 3 This is a perspective view of the external structure of the spiral ring of the present invention; Figure 4 This is a perspective view of the external structure of the clamping strip of the present invention; Figure 5 This is a perspective view of the external structure of the frame of the present invention.

[0019] In the diagram: 1. Insulated container; 2. Frustum; 3. Storage chamber; 4. Filter hole; 5. Connecting hole; 6. Support assembly; 61. Sealing plate; 62. Material control unit; 621. Feeding pipe; 622. Hopper; 623. Feeding pipe; 624. Frame; 625. Rotary cylinder; 626. Drive motor; 627. Drive gear; 628. Transmission gear; 63. Fixed pipe; 64. Rubber sleeve; 65. Connecting pipe; 66. Limiting unit; 661. Clamping bar; 662. Clamping groove; 663. Clamping block; 664. Magnetic coil; 665. Push bar; 666. Slider; 667. Slide rail; 67. Threaded ring; 68. Rotating plate; 7. Paddle blade; 8. Pump pipe; 9. Abutment plate; 10. Abutment bar; 11. Suction hole; 12. Rotary connector; 13. Spring tube. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-5 This invention provides a technical solution: an aluminum liquid degassing machine. The system includes an insulated tank 1, with an external machine base (not shown in the figure) on the outside. A lifting mechanism is mounted on the machine base. An internal filtration mechanism is located inside the insulated tank 1, comprising a frustum 2 made of a high-temperature corrosion-resistant and high-hardness material, positioned above the aluminum molten liquid level. The outer surface of the frustum 2 is movably connected to the interior of the insulated tank 1. A storage cavity 3 is formed inside the frustum 2, which is hollow. Through-holes 4 and connecting holes 5 are formed on the outer surface of the frustum 2. The through-holes 4 filter iron oxide impurities in the aluminum molten liquid and disperse air bubbles. The through-holes 4 and connecting holes 5 are respectively connected to the storage cavity 3 and the interior of the insulated tank 1. A paddle 7, made of graphite material, is mounted on the outside of the frustum 2. The paddle 7 can be used to pump the aluminum molten liquid from inside the insulated tank 1. The outer surface of the paddle 7 is rotatably connected to the interior of the insulated tank 1. The shaft of the paddle 7... The end of the blade 7 extends into the interior of the storage chamber 3 through the connecting hole 5. The outside of the blade 7 is fitted with a pump tube 8, which is made of graphite material to transport the pumped aluminum liquid into the storage chamber 3 for repeated filtration. The outer surface of the pump tube 8 is threadedly connected to the inside of the connecting hole 5. One end of the pump tube 8 extends into the interior of the storage chamber 3. The shaft end of the blade 7 is fixedly connected to a stop plate 9, which serves as a fixed support. The outer surface of the stop plate 9 is rotatably connected to the interior of the storage chamber 3. The outer surface of the stop plate 9 is fixedly connected to a stop bar 10. Multiple stop bars 10 are set at equal angles. During the process of pumping the aluminum liquid into the storage chamber 3 through the pump tube 8, the stop bar 10 can disperse the air bubbles in the aluminum liquid. One end of the stop bar 10 abuts against one end of the pump tube 8. The outer arc surface of the other end of the pump tube 8 is provided with a through suction hole 11. The suction hole 11 is located at the end of the pump tube 8 near the lower part of the interior of the insulation tank 1 to improve the pumping capacity of the aluminum liquid. The interior of the suction hole 11 is connected to the interior of the insulation tank 1.

[0022] The shaft end of the blade 7 is hollow and a rotary connector 12 is provided at the shaft end of the blade 7. The rotary connector 12 is made of existing pneumatic rotary joints and adopts the SMCMQR series signal. A spring tube 13 is connected through the inside of the rotary connector 12. The spring tube 13 is connected to the external air supply equipment and can easily move the blade 7 up and down with the lifting mechanism by its own deformation and expansion.

[0023] A support assembly 6 is provided on the outside of the truncated cone 2. The support assembly 6 includes a sealing plate 61. The outer surface of the sealing plate 61 is movably connected to the inside of the insulation tank 1. A fixed tube 63 is fixedly connected to the outer surface of the sealing plate 61. The fixed tube 63 serves to fix and support the blades 7 and is sleeved on the outside. A rubber sleeve 64 is fixedly connected to one end of the fixed tube 63. The rubber sleeve 64 serves to seal the connection and allow for deformation and expansion, facilitating the axial movement of the truncated cone 2 to avoid the filter holes 4 being blocked by impurities. A connecting pipe 65 is movably connected to one end of the rubber sleeve 64, serving to connect... The connecting pipe 65 is used to facilitate the assembly and disassembly of the frustum 2. The inner diameter of the connecting pipe 65 is greater than or equal to the contact range of the abutment plate 9 and the abutment bar 10, so that the abutment plate 9 and the abutment bar 10 can be taken out from the inside of the storage cavity 3 through the connecting pipe 65. One end of the connecting pipe 65 is fixedly connected to the body of the frustum 2 and extends into the inside of the storage cavity 3. One end of the rubber sleeve 64 is fixedly connected to a screw ring 67. The screw ring 67 is connected to the thread inside the connecting pipe 65, which facilitates the quick assembly and disassembly of the frustum 2 and also improves the stability of the frustum 2. The outer surface of the screw ring 67 is connected to the thread embedded in the other end of the connecting pipe 65.

[0024] The body of the sealing plate 61 is rotatably connected to the shaft end of the blade 7. A rotating plate 68 is rotatably connected inside the sealing plate 61. The rotating plate 68 plays an axial limiting role for the blade 7, thereby improving the stability and force bearing capacity of the blade 7. The body of the rotating plate 68 is fixedly connected to the shaft end of the blade 7.

[0025] A material control unit 62 is provided on the outside of the sealing plate 61. The material control unit 62 includes a feeding pipe 621, which is connected to an external aluminum molten metal melting device. One end of the feeding pipe 621 is fixedly connected to the body of the heat preservation tank 1 and extends into the interior of the heat preservation tank 1. A hopper 622 is provided below one end of the feeding pipe 621. The opening range of the hopper 622 is larger than the opening range of the feeding pipe 621 to facilitate the feeding of aluminum molten metal. A feed inlet is connected through the interior of the hopper 622. Pipe 623, the feed pipe 623 facilitates the unified collection of molten aluminum inside the hopper 622 into the storage cavity 3. One end of the feed pipe 623 is lower than the end of the pump pipe 8 inside the storage cavity 3. The feeding rate of the molten aluminum is controlled according to the filtration capacity of the filter hole 4 and the impurity content to prevent the molten aluminum from being filtered in time and flowing back into the heat preservation tank 1 through the pump pipe 8. One end of the feed pipe 623 is fixedly connected to the body of the frustum 2 and extends into the storage cavity 3.

[0026] A frame 624 is provided on the outside of the hopper 622, which serves as a fixed support. The outer surface of the frame 624 is fixedly connected to the outer surface of the sealing plate 61. A rotary cylinder 625 is fixedly connected to the outer surface of the frame 624. The rotary cylinder 625 is connected to an external control circuit. By rotating the output end, the sealing plate 61 can drive the frustum 2 and the hopper 622 to rotate and adjust their position so that the hopper 622 is below the feed pipe 621. A drive motor 62 is fixedly connected to the outer surface of the frame 624. 6. The drive motor 626 is electrically connected to the external control circuit. The output end of the drive motor 626 is fixedly connected to the drive gear 627. The outer surface of the drive gear 627 meshes with the transmission gear 628. Both the drive gear 627 and the transmission gear 628 are made of bevel gears. Through vertical transmission, the blade 7 can be driven to rotate. It can also facilitate the blowing of inert gas onto the aluminum liquid for hydrogen removal through the rotary connector 12 and the spring tube 13. The body of the transmission gear 628 is fixedly connected to the outer surface of the blade 7.

[0027] The connecting pipe 65 is provided with a limiting unit 66, which includes a clamping strip 661. Both sides of the clamping strip 661 are arc-shaped to fit the fixed pipe 63 and limit the left and right movement of the frustum 2. The clamping strip 661 is made of magnetic material and is fixedly installed on both sides of the outer surface of the connecting pipe 65. The outer surfaces of both clamping strips 661 are slidably connected to the outer surface of the fixed pipe 63. The body of the clamping strip 661 has a through clamping groove 662. A clamping block 663 is slidably connected inside the clamping groove 662. The cross-section of the clamping block 663 is parallel to that of the clamping groove. The cross-sectional dimensions of 662 are matched, and the cooperation between the clamping block 663 and the clamping groove 662 can limit the axial movement of the frustum 2 and restrict its radial rotation. The outer surface of the clamping block 663 is movably connected to the outer surface of the fixed tube 63. The outside of the clamping bar 661 is movably connected to the magnetic coil 664 by magnetic force. The magnetic coil 664 is electrically connected to the external control circuit. When energized, it generates magnetism to use magnetic attraction to make the clamping bar 661 drive the frustum 2 to move axially. The outer surface of the magnetic coil 664 is embedded and fixedly connected to the body of the sealing plate 61.

[0028] A pusher 665 is fixedly connected to the outer surface of the clamping block 663. One side of the surface of the pusher 665 is arc-shaped to facilitate sliding contact with the surface of the clamping block 661. The outer surface of the pusher 665 is movably connected to the outer surface of the clamping block 661. A slider 666 is fixedly connected to one end of the pusher 665. The outer surface of the slider 666 is slidably connected to the inside of the insulation barrel 1. A slide rail 667 is slidably connected to the outer surface of the slider 666. The slider 666 and the slide rail 667 can be made using an existing sliding motor device with a self-locking function, or they can be made using a ball screw structure. They are electrically connected to an external control circuit. At the same time, high-temperature resistant measures are provided on the outside to avoid damage to the circuit due to high temperature. The outer surface of the slide rail 667 is fixedly connected to the outer surface of the sealing plate 61.

[0029] This invention also discloses a degassing method for an aluminum liquid degassing machine, specifically including the following steps: Step 1: The frustum 2 is fitted onto the outside of the blade 7 shaft end through the connecting hole 5 and the connecting pipe 65. Then, the connecting pipe 65 is connected to the rubber sleeve 64 and the fixed pipe 63 through the threaded connection with the screw ring 67. At the same time, the clamping strips 661 on both sides are in contact with the fixed pipe 63. Then, the slider 666 slides along the slide rail 667, so that the pusher 665 drives the clamping block 663 to slide into the clamping groove 662. Through the contact with the fixed pipe 63, the clamping strips 661 limit the frustum 2. Next, the pump pipe 8 is fitted onto the outside of the blade 7, and one end of it is connected to the connecting hole 5 through the threaded connection to enter the interior of the storage cavity 3 and abuts against the abutment strip 10. Step 2: The external lifting mechanism uses the rotary cylinder 625 and the fixed frame 624 to drive the sealing plate 61 to move the frustum 2, pump pipe 8 and paddle 7 into the interior of the insulation barrel 1. At the same time, the sealing plate 61 seals the opening of the insulation barrel 1. Then, the output end of the rotary cylinder 625 rotates and, through the action of the fixed frame 624 and the sealing plate 61, the hopper 622 rotates to the bottom of one end of the feed pipe 621. Then, the aluminum liquid enters the interior of the storage chamber 3 through the feed pipe 621, the hopper 622 and the feed pipe 623. It falls into the interior of the insulation barrel 1 through the filter hole 4, and the filter hole 4 traps iron oxide impurities in the aluminum liquid inside the storage chamber 3. Step 3: The drive motor 626 drives the blade 7 to rotate through the meshing of the drive gear 627 and the transmission gear 628. First, the aluminum liquid is pumped back into the storage chamber 3 through the suction hole 11 and one end of the pump pipe 8 for repeated filtration. Second, the external gas supply device blows inert gas onto the aluminum liquid through the spring tube 13, the rotary connector 12 and the hollow part of the blade 7 shaft end to remove hydrogen. During the process of removing hydrogen, the shearing force of the blade 7, the tearing force of the abutment bar 10 and the filter hole 4 can disperse the bubbles generated by the inert gas into a large number of fine bubbles.

[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum liquid degassing machine, comprising an insulated tank (1), characterized in that: The heat preservation barrel (1) is equipped with a filtration mechanism, which includes a frustum (2). The outer surface of the frustum (2) is movably connected to the interior of the heat preservation barrel (1). A storage cavity (3) is opened inside the frustum (2). A through filter hole (4) and a connecting hole (5) are respectively opened on the outer surface of the frustum (2). The interior of the filter hole (4) and the connecting hole (5) are respectively connected to the storage cavity (3) and the interior of the heat preservation barrel (1). A paddle (7) is provided outside the frustum (2). The outer surface of the paddle (7) is rotatably connected to the interior of the heat preservation barrel (1). The shaft end of the paddle (7) extends to the storage cavity through the connecting hole (5). Inside the 3), the outside of the blade (7) is fitted with a pump pipe (8), the outer surface of the pump pipe (8) is threadedly connected to the inside of the connecting hole (5), one end of the pump pipe (8) extends into the inside of the storage cavity (3), the shaft end of the blade (7) is fixedly connected with a stop plate (9), the outer surface of the stop plate (9) is rotatably connected to the inside of the storage cavity (3), the outer surface of the stop plate (9) is fixedly connected with a stop bar (10), one end of the stop bar (10) abuts against one end of the pump pipe (8), the outer arc surface of the other end of the pump pipe (8) is provided with a through suction hole (11), the inside of the suction hole (11) is connected to the inside of the heat preservation barrel (1).

2. The aluminum liquid degassing machine according to claim 1, characterized in that: The shaft end of the blade (7) is hollow, and a rotary connector (12) is provided at the shaft end of the blade (7). A spring tube (13) is connected through the interior of the rotary connector (12).

3. The aluminum liquid degassing machine according to claim 1, characterized in that: The frustum (2) is provided with a support assembly (6) on its exterior. The support assembly (6) includes a sealing plate (61). The outer surface of the sealing plate (61) is movably connected to the interior of the heat preservation barrel (1). A fixed tube (63) is fixedly connected to the outer surface of the sealing plate (61). A rubber sleeve (64) is fixedly connected to one end of the fixed tube (63). A connecting tube (65) is movably connected to one end of the rubber sleeve (64). One end of the connecting tube (65) is fixedly connected to the body of the frustum (2) and extends into the interior of the storage cavity (3). A screw ring (67) is fixedly connected to one end of the rubber sleeve (64). The outer surface of the screw ring (67) is threadedly connected to the interior of the other end of the connecting tube (65).

4. The aluminum liquid degassing machine according to claim 3, characterized in that: The body of the sealing plate (61) is rotatably connected to the shaft end of the blade (7), and a rotating plate (68) is rotatably connected inside the sealing plate (61). The body of the rotating plate (68) is fixedly connected to the shaft end of the blade (7).

5. An aluminum liquid degassing machine according to claim 3, characterized in that: The sealing plate (61) is provided with a material control unit (62) on its outside. The material control unit (62) includes a feeding pipe (621). One end of the feeding pipe (621) is fixedly connected to the body of the heat preservation barrel (1) and extends into the interior of the heat preservation barrel (1). A hopper (622) is provided below one end of the feeding pipe (621). A feed pipe (623) is connected through the interior of the hopper (622). One end of the feed pipe (623) is fixedly connected to the body of the frustum (2) and extends into the interior of the storage cavity (3).

6. The aluminum liquid degassing machine according to claim 5, characterized in that: The hopper (622) is provided with a frame (624) on its outside. The outer surface of the frame (624) is fixedly connected to the outer surface of the sealing plate (61). A rotary cylinder (625) is fixedly connected to the outer surface of the frame (624). A drive motor (626) is fixedly connected to the outer surface of the frame (624). A drive gear (627) is fixedly connected to the output end of the drive motor (626). A transmission gear (628) meshes with the outer surface of the drive gear (627). The body of the transmission gear (628) is fixedly connected to the outer surface of the blade (7).

7. An aluminum liquid degassing machine according to claim 3, characterized in that: The connecting pipe (65) is provided with a limiting unit (66) on its outside. The limiting unit (66) includes a clamping strip (661). The clamping strip (661) is fixedly disposed on both sides of the outer surface of the connecting pipe (65). The outer surfaces of the clamping strips (661) on both sides are slidably connected to the outer surface of the fixed pipe (63). The body of the clamping strip (661) is provided with a through clamping groove (662). A clamping block (663) is slidably connected inside the clamping groove (662). The outer surface of the clamping block (663) is movably connected to the outer surface of the fixed pipe (63). A magnetic coil (664) is movably connected to the outside of the clamping strip (661) by magnetic force. The outer surface of the magnetic coil (664) is embedded and fixedly connected to the body of the sealing plate (61).

8. An aluminum liquid degassing machine according to claim 7, characterized in that: The outer surface of the clamping block (663) is fixedly connected to a pusher (665), the outer surface of the pusher (665) is movably connected to the outer surface of the clamping bar (661), one end of the pusher (665) is fixedly connected to a slider (666), the outer surface of the slider (666) is slidably connected to the inside of the heat preservation barrel (1), the outer surface of the slider (666) is slidably connected to a slide rail (667), and the outer surface of the slide rail (667) is fixedly connected to the outer surface of the sealing plate (61).

9. A degassing method for an aluminum liquid degassing machine, employing an aluminum liquid degassing machine as described in any one of claims 1-8, characterized in that: Specifically, the following steps are included: Step 1: The frustum (2) is fitted onto the outside of the blade (7) shaft end through the connecting hole (5) and the connecting pipe (65). Then, the connecting pipe (65) is connected to the rubber sleeve (64) and the fixed pipe (63) through the threaded connection with the screw ring (67). At the same time, the clamping strips (661) on both sides are in contact with the fixed pipe (63). Then, the slider (666) slides along the slide rail (667), so that the pusher (665) drives the clamping block (663) to slide into the clamping groove (662). Through the contact with the fixed pipe (63), the frustum (2) is limited by the clamping strip (661). Then, the pump pipe (8) is fitted onto the outside of the blade (7), and one end of it is connected to the connecting hole (5) and enters the inside of the storage cavity (3), and abuts against the abutment strip (10). Step 2: The external lifting mechanism uses a rotary cylinder (625) and a fixed frame (624) to make the sealing plate (61) drive the frustum (2), pump pipe (8) and blade (7) into the interior of the heat preservation barrel (1). At the same time, the sealing plate (61) seals the opening of the heat preservation barrel (1). Then, the output end of the rotary cylinder (625) rotates and, through the action of the fixed frame (624) and the sealing plate (61), the hopper (622) moves to the bottom of one end of the feed pipe (621). Then, the aluminum liquid enters the interior of the storage chamber (3) through the feed pipe (621), the hopper (622) and the feed pipe (623). It falls into the interior of the heat preservation barrel (1) through the action of the filter hole (4), and the filter hole (4) traps the iron oxide impurities in the aluminum liquid inside the storage chamber (3). Step 3: The drive motor (626) drives the blade (7) to rotate through the meshing of the drive gear (627) and the transmission gear (628). First, the aluminum liquid is pumped back into the storage chamber (3) through the suction hole (11) and one end of the pump pipe (8) for repeated filtration. Then, the external gas supply device blows inert gas onto the aluminum liquid through the spring tube (13), the rotary connector (12) and the hollow part of the blade (7) shaft end to remove hydrogen. During the process of removing hydrogen, the shearing force of the blade (7), the tearing force of the abutment bar (10) and the tearing force of the filter hole (4) can disperse the bubbles generated by the inert gas into a large number of small bubbles.

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