Molten aluminum smelting hydrogen removal device for cast rolling aluminum plate

Abstract

The invention relates to the technical field of molten aluminum smelting hydrogen removal, in particular to a molten aluminum smelting hydrogen removal device for cast rolling of aluminum plates, which comprises a refining tank, a graphite stirring rod and a rotary nozzle mounted at the bottom of the graphite stirring rod, a sealing connection mechanism is arranged on the outer side of the top of the refining tank, and a sealing top shell is connected to the sealing connection mechanism; a driving extrusion mechanism is arranged at the sealing top shell, the number of the graphite stirring rods is two, and the driving extrusion mechanism is used for extruding molten aluminum through the two graphite stirring rods, so that hydrogen overflows out of the molten aluminum; a connecting plate is mounted at the top of the driving extrusion mechanism, a supporting piece is mounted at the connecting plate, and the supporting piece is used for adjusting the height of the sealing top shell through the connecting plate; according to the molten aluminum smelting and hydrogen removing device for the cast-rolled aluminum plate, bubbles are fully dispersed in molten aluminum, meanwhile, the effect of extruding the molten aluminum for the cast-rolled aluminum plate with poor fluidity is achieved, diffusion of hydrogen into the bubbles is accelerated, overflow of the hydrogen is assisted, and the hydrogen removing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum liquid smelting and dehydrogenation, in particular to an aluminum liquid smelting and dehydrogenation device for cast and rolled aluminum plates. Background Art

[0002] In the process of aluminum liquid smelting, hydrogen is an important impurity, which has a significant impact on the quality of cast aluminum plate. Hydrogen will dissolve in the aluminum liquid and gradually precipitate to form pores during the solidification process of the casting. These pores will reduce the strength and sealing performance of the casting, and may even cause the casting to rupture. In addition, the increase in hydrogen content will cause deformation of the casting, affecting the dimensional accuracy and shape stability of the casting. Therefore, effectively removing hydrogen during the aluminum liquid smelting process is the key to improving the quality of cast aluminum plate.

[0003] At present, the existing aluminum liquid used for cast aluminum plates often uses the bubble floating method to remove hydrogen during the processing process, that is, an inert gas (such as nitrogen or argon) is blown into the aluminum melt through a rotating nozzle to disperse the inert gas into small bubbles. These bubbles will take away the hydrogen in the aluminum melt during the floating process, thereby achieving the purpose of dehydrogenation. However, the thickness of the liquid film between the existing bubbles and the aluminum melt and the dispersion of the bubbles will affect the dehydrogenation efficiency. At the same time, the fluidity of the aluminum liquid is poor, which will hinder the diffusion and floating of the gas in the melt during the dehydrogenation process. Summary of the invention

[0004] The object of the present invention is to provide a device for smelting and removing hydrogen from molten aluminum for cast and rolled aluminum plates, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an aluminum liquid smelting and dehydrogenation device for cast aluminum plate, comprising a refining tank, a graphite stirring rod and a rotating nozzle installed at the bottom of the graphite stirring rod, a sealing connection mechanism is provided on the outer side of the top of the refining tank, and a sealing top shell is connected to the sealing connection mechanism;

[0006] The sealing top shell is provided with a driving extrusion mechanism, and two graphite stirring rods are provided. The driving extrusion mechanism is used to extrude the aluminum liquid through the two graphite stirring rods, so that hydrogen overflows from the aluminum liquid;

[0007] A connecting plate is installed on the top of the driving extrusion mechanism, and a supporting member is installed on the connecting plate, and the supporting member is used to adjust the height of the sealing top shell through the connecting plate;

[0008] A gas injection mechanism is provided on the top of the sealed top shell, and the gas injection mechanism is used to inject inert gas into the two graphite stirring rods;

[0009] An air suction hole is provided at the bottom of the sealed top shell, and an air suction mechanism is connected to the air suction hole, and the air suction mechanism is used to suck the overflowed gas.

[0010] Wherein, the sealing connection mechanism includes a support ring and a sealing gasket, the support ring is fixedly sleeved on the outer side of the top of the refining tank, and the sealing gasket is fixedly installed on the support ring, and a sealing groove is provided at the bottom of the sealing top shell and corresponding to the position of the sealing gasket, the bottom of the sealing top shell is located on the support ring and is sealed with the sealing gasket through the sealing groove, and the sealing connection mechanism is provided to ensure that the sealing top shell and the refining tank are kept sealed.

[0011] The driving extrusion mechanism includes a rotating sleeve, a support frame, a rotating mechanism, a rotating shaft, a rotating member, a synchronous driving mechanism, a rotating shaft, a swinging member, a limiting plate and a connecting frame. The rotating sleeve passes through the top of the sealing top shell, and the rotating sleeve is rotatably connected to the sealing top shell through a bearing. The bottom of the rotating sleeve is located inside the sealing top shell and is fixedly connected to the supporting frame. The rotating mechanism is installed on the upper surface of the sealing top shell, and the rotating mechanism is used to drive the rotating sleeve. The rotating mechanism is connected to the connecting plate.

[0012] The rotating shaft passes through the rotating sleeve, the rotating member is installed on the top of the rotating sleeve and is used to drive the rotating shaft, the rotating shaft is rotatably connected to the rotating sleeve through a bearing, the bottom of the rotating shaft is connected to a synchronous driving mechanism, and the synchronous driving mechanism is located on the support frame;

[0013] There are two rotating shafts, which are rotatably connected to the two ends of the support frame, and the two rotating shafts are connected to the synchronous driving mechanism;

[0014] The swinging member is installed at the bottom of the rotating shaft, and the swinging member is used to drive the graphite stirring rod;

[0015] The limit plate is located at the two swinging members, and is fixedly mounted on the bottom of the support frame through a connecting frame. Through the provided driving extrusion mechanism, the two stirring rods can extrude the aluminum liquid against each other, further assisting the gas to overflow.

[0016] Among them, the rotating mechanism includes a connecting shell, a servo motor, a first rotating gear and a second rotating gear. The connecting shell is fixedly installed on the top of the sealing top shell, and the connecting shell is fixedly connected to the connecting plate. The servo motor is fixedly installed inside the connecting shell, and the output end of the servo motor is fixedly connected to the first rotating gear. The first rotating gear is meshed with the second rotating gear, and the second rotating gear is fixedly sleeved on the outside of the rotating sleeve. Through the rotating mechanism, the function of driving the rotating sleeve is realized.

[0017] Wherein, the synchronous drive mechanism includes a driving gear, a first steering gear, a second steering gear, a third steering gear and a synchronous belt, the driving gear is fixedly installed at the bottom of the rotating shaft, the first steering gear and the second steering gear are respectively fixedly sleeved on the tops of the two rotating shafts, the second steering gear is meshed and connected with the third steering gear, the third steering gear is rotatably connected to the support frame through the gear shaft, the synchronous belt transmission is connected to the outside of the first steering gear, the driving gear and the third steering gear, and the synchronous drive mechanism is provided to achieve the function of synchronous reverse driving of the two rotating shafts.

[0018] The swing member includes a swing plate, a swing shaft, a swing support rod, a driving shaft, a driving frame and a rotating member, one end of the swing plate is fixedly connected to the bottom of the rotating shaft, and the swing shaft is fixedly installed at the bottom of the swing plate and away from the end of the rotating shaft;

[0019] One end of the swing support rod is rotatably connected to the rotating shaft, and the other end of the swing support rod is rotatably connected to the driving shaft, the driving shaft is fixedly installed on the driving frame, the position of the limit plate corresponding to the driving frame is provided with a moving opening, and the driving frame slides through the moving opening, the top of the graphite stirring rod passes through the driving frame, and the graphite stirring rod is rotatably connected to the driving frame;

[0020] The rotating member is installed on the pushing frame, and the rotating member is used to drive the graphite stirring rod, and the swinging member is provided to achieve the function of pushing the graphite stirring rod.

[0021] The support member includes a support bottom plate, a universal wheel, a fixing frame and a lifting mechanism. The support bottom plate is located outside the refining tank. A plurality of universal wheels are provided, and the plurality of universal wheels are all installed at the bottom of the support bottom plate.

[0022] The fixing frame is fixedly mounted on one end of the top of the supporting base plate, and the lifting mechanism is mounted on the fixing frame. One end of the connecting plate is connected to the lifting mechanism, and the connecting plate is supported by the supporting member.

[0023] Among them, the air extraction mechanism includes an air storage shell, an air suction pump and an air extraction hose. The air storage shell is fixedly installed on the supporting bottom plate, and the output end of the air suction pump is connected to the air storage shell, the input end of the air suction pump is connected to the air extraction hose, and one end of the air extraction hose is connected to the air suction hole at the bottom of the sealed top shell. Through the air extraction mechanism, the hydrogen in the refining tank is extracted.

[0024] Wherein, the gas injection mechanism includes a gas supply shell, an air extraction pump, a gas supply hose, a gas supply fixed tube, an annular gas injection shell, an annular plate and an air guide member, the gas supply shell is installed on the top of the gas storage shell, and the input end of the gas extraction pump is connected to the gas supply shell, the output end of the gas extraction pump is connected to the gas supply hose, one end of the gas supply hose is connected to the gas supply fixed tube, the gas supply fixed tube passes through the connecting plate, and one end of the bottom of the gas supply fixed tube is connected to the annular gas injection shell, the annular gas injection shell passes through the top of the sealing top shell, and the annular gas injection shell is fixedly connected to the sealing top shell, the annular plate is rotatably connected to the bottom of the annular gas injection shell, and two through holes are provided on the annular plate, and two gas guide members are provided, and the two gas guide members are respectively connected to two graphite stirring rods, and through the provided gas injection mechanism, the function of injecting inert gas into the rotating graphite stirring rod of graphite is realized.

[0025] Among them, the air guide member includes a transfer sleeve, a guide block, a synchronization rod and a telescopic tube. A positioning port is provided on the support frame and corresponds to the position of the transfer sleeve. The transfer sleeve passes through the positioning port. There are two guide blocks, and the two guide blocks are fixedly installed on the outside of the transfer sleeve. The transfer sleeve is slidably connected to the positioning port through two guide blocks. There are two synchronization rods, and the two synchronization rods are fixedly installed on the top of the transfer sleeve. The telescopic tube is located between the two synchronization rods. One end of the telescopic tube is connected to the transfer sleeve, and the other end of the telescopic tube is connected to the through hole. The top of the graphite stirring rod is connected to the transfer sleeve, and the graphite stirring rod is rotatably connected to the transfer sleeve through a bearing. Through the air guide member, the function of introducing inert gas into the inside of the graphite stirring rod is realized.

[0026] The present invention has at least the following beneficial effects:

[0027] 1. When the present invention is in use, the two graphite stirring rods are provided. When the two graphite stirring rods are connected to the driving extrusion mechanism, the two graphite stirring rods can rotate and stir along the inside of the refining tank, and the two graphite stirring rods can move relatively along the inside of the refining tank body. At the same time, the rotating nozzle sprays the inert gas to fully disperse the bubbles in the aluminum liquid, and at the same time, the aluminum liquid for the cast aluminum plate with poor fluidity is squeezed, which accelerates the diffusion of hydrogen into the bubbles, assists the overflow of hydrogen, and improves the dehydrogenation efficiency.

[0028] 2. When the present invention is in use, by providing a sealing connection mechanism on the outside of the refining tank, a sealing top shell and a vacuum mechanism, during the dehydrogenation process, a relatively sealed state between the refining tank and the sealing top shell can be ensured, thereby enabling the hydrogen to be fully removed while preventing the overflowed hydrogen from re-entering the aluminum liquid, thereby ensuring the dehydrogenation effect of the aluminum liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a side view of the overall structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the internal structure of the sealed top shell of the present invention;

[0032] Figure 4 This is a schematic diagram of the internal structure of the refining tank of the present invention;

[0033] Figure 5 This is a schematic diagram of the connecting shell structure of the present invention;

[0034] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of the middle A area;

[0035] Figure 7 This is a schematic diagram of the cross-sectional structure of the annular gas injection shell of the present invention;

[0036] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of the middle B area;

[0037] Fig. 9 It is a structural schematic diagram of the synchronous drive mechanism of the present invention;

[0038] Fig.10 It is a schematic diagram of the structure of the limiting plate of the present invention;

[0039] Fig.11 It is a schematic diagram of the structure of the rotating part of the present invention;

[0040] Fig.12 It is a schematic diagram of the swing support rod structure of the present invention.

[0041] In the figure: 1, refining tank; 2, graphite stirring rod; 21, extrusion block; 3, rotating nozzle; 4, sealing connection mechanism; 41, support ring; 42, sealing gasket; 5, sealing top shell; 51, suction hole; 52, sealing groove; 6, driving extrusion mechanism; 61, rotating sleeve; 62, supporting frame; 63, rotating mechanism; 631, connecting shell; 632, servo motor; 633, first rotating gear; 634, second rotating gear; 64, rotating shaft; 65, rotating member; 651, rotating motor; 66, synchronous driving mechanism; 661, driving gear; 662, first steering gear; 663, second steering gear; 664, third steering gear; 665, synchronous belt; 67, rotating shaft; 68, swing member; 681, swing plate; 682, swing shaft; 68 3. Swing support rod; 684. Push shaft; 685. Push frame; 6851. Roller; 686. Rotating member; 6861. Rotating sleeve; 6862. Moving gear; 6863. Fixed rack; 69. Limiting plate; 691. Connecting frame; 692. Moving port; 7. Connecting plate; 8. Gas injection mechanism; 81. Gas supply shell; 82. Air pump; 83. Gas supply hose; 84. Gas supply fixed pipe; 85. Annular gas injection shell; 86. Annular plate; 87. Gas guide; 871. Transfer sleeve; 872. Guide block; 873. Synchronous rod; 874. Telescopic tube; 9. Gas extraction mechanism; 91. Gas storage shell; 92. Air pump; 93. Gas extraction hose; 10. Support member; 101. Support base plate; 102. Universal wheel; 103. Fixed frame; 104. Lifting mechanism. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Embodiment 1

[0044] See also Figures 4 to 5 A device for smelting and removing hydrogen from aluminum liquid for cast aluminum plate comprises a refining tank 1, a graphite stirring rod 2 and a rotating nozzle 3 installed at the bottom of the graphite stirring rod 2, and the existing rotating nozzle 3 cooperates with the graphite stirring rod 2, and the inert gas is sprayed from the rotating nozzle 3 to form a large number of fine bubbles that diffuse into the aluminum liquid, and a sealing connection mechanism 4 is provided on the outer side of the top of the refining tank 1, and a sealing top shell 5 is connected to the sealing connection mechanism 4;

[0045] See also Figure 3 to Figure 4The sealing connection mechanism 4 includes a support ring 41 and a sealing gasket 42, and the sealing gasket 42 is a ring-shaped sealing gasket 42, the sealing gasket 42 and the support ring 41 are adapted to each other, the support ring 41 is fixedly sleeved on the outer side of the top of the refining tank 1, and the sealing gasket 42 is fixedly installed on the support ring 41, and a sealing groove 52 is provided at the bottom of the sealing top shell 5 and corresponding to the position of the sealing gasket 42, the bottom of the sealing top shell 5 is located on the support ring 41 and is sealed and connected to the sealing gasket 42 through the sealing groove 52;

[0046] Specific implementation process: When dehydrogenating the aluminum liquid inside the refining tank 1, the sealing top shell 5 is first moved to the top of the refining tank 1, and until the sealing groove 52 at the bottom of the sealing top shell 5 is sleeved on the outside of the sealing gasket 42, and the bottom of the sealing top shell 5 is in contact with the support ring 41, so that the refining tank 1 and the sealing top shell 5 are kept in a sealed state. This setting can ensure that the aluminum liquid is isolated from the outside when dehydrogenating the aluminum liquid, and effectively prevent the overflowed hydrogen from entering the aluminum liquid again.

[0047] Please refer to Figures 2 to 12 A driving extrusion mechanism 6 is provided at the sealing top shell 5, two graphite stirring rods 2 are provided, and the driving extrusion mechanism 6 is used to extrude the aluminum liquid through the two graphite stirring rods 2, so that the hydrogen overflows from the aluminum liquid;

[0048] A connecting plate 7 is installed on the top of the driving extrusion mechanism 6, and a supporting member 10 is installed at the connecting plate 7. The supporting member 10 is used to adjust the height of the sealing top shell 5 through the connecting plate 7;

[0049] The support member 10 includes a support bottom plate 101, a universal wheel 102, a fixing frame 103 and a lifting mechanism 104. In this embodiment, the universal wheel 102 is a self-braking universal wheel 102. The support bottom plate 101 is moved by the universal wheel 102. At the same time, when the support bottom plate 101 is moved to the outside of the refining tank 1 and the relative position between the sealing top shell 5 and the refining tank 1 is adjusted, the support bottom plate 101 can be locked by the universal wheel 102 to prevent the support bottom plate 101 from moving relative to each other, thereby ensuring the stability of the dehydrogenation of the aluminum liquid in the refining tank 1. The support bottom plate 101 is located outside the refining tank 1, and a plurality of universal wheels 102 are provided, and the plurality of universal wheels 102 are all installed at the bottom of the support bottom plate 101;

[0050] See also Figures 2 to 3, the fixing frame 103 is fixedly mounted on one end of the top of the supporting bottom plate 101, and the lifting mechanism 104 is mounted on the fixing frame 103, one end of the connecting plate 7 is connected to the lifting mechanism 104, and in this example, the lifting mechanism 104 is an existing mechanism, which is preferably composed of a lifting frame, a lifting screw and a lifting motor, and the connecting plate 7 is slidably sleeved on the outside of the lifting frame, and the connecting plate 7 is threadedly sleeved on the outside of the lifting screw, so that when the height of the connecting plate 7 needs to be adjusted, the lifting screw can be rotated relative to the lifting frame by the forward and reverse rotation of the lifting motor, and while the lifting screw rotates, a driving force is provided to the connecting plate 7, and due to the limiting effect of the lifting frame, the connecting plate 7 drives the sealing top shell 5 to move upward or downward relative to the vertical direction;

[0051] A gas injection mechanism 8 is provided on the top of the sealed top shell 5, and the gas injection mechanism 8 is used to inject inert gas into the two graphite stirring rods 2;

[0052] An air suction hole 51 is provided at the bottom of the sealed top shell 5, and an air suction mechanism 9 is connected to the air suction hole 51. The air suction mechanism 9 is used to suck the overflowed gas.

[0053] The driving and extruding mechanism 6 includes a rotating sleeve 61, a support frame 62, a rotating mechanism 63, a rotating shaft 64, a rotating member 65, a synchronous driving mechanism 66, a rotating shaft 67, a swinging member 68, a limiting plate 69 and a connecting frame 691. The rotating sleeve 61 passes through the top of the sealing top shell 5, and the rotating sleeve 61 is rotatably connected to the sealing top shell 5 through a bearing. The bottom of the rotating sleeve 61 is located inside the sealing top shell 5 and is fixedly connected to the supporting frame 62. The rotating mechanism 63 is installed on the upper surface of the sealing top shell 5, and the rotating mechanism 63 is used to drive the rotating sleeve 61. The rotating mechanism 63 is connected to the connecting plate 7;

[0054] See also Figures 5 and 6 The rotating mechanism 63 includes a connecting shell 631, a servo motor 632, a first rotating gear 633 and a second rotating gear 634. The connecting shell 631 is fixedly mounted on the top of the sealing top shell 5, and the connecting shell 631 is fixedly connected to the connecting plate 7. The servo motor 632 is fixedly mounted inside the connecting shell 631, and the output end of the servo motor 632 is fixedly connected to the first rotating gear 633. The first rotating gear 633 is meshedly connected to the second rotating gear 634, and the second rotating gear 634 is fixedly sleeved on the outside of the rotating sleeve 61.

[0055] Thus, by operating the servo motor 632 inside the connecting shell 631 , the first rotating gear 633 drives the second rotating gear 634 to rotate. When the second rotating gear 634 rotates, the rotating sleeve 61 drives the support frame 62 to rotate relative to the sealing top shell 5 .

[0056] The rotating shaft 64 passes through the rotating sleeve 61, and the rotating member 65 is installed on the top of the rotating sleeve 61 and is used to drive the rotating shaft 64. In this embodiment, the rotating member 65 is preferably a rotating motor 651, that is, the rotating shaft 64 is rotated relative to the rotating sleeve 61 by the operation of the rotating motor 651. When the rotating shaft 64 rotates, the synchronous driving mechanism 66 is driven. The rotating shaft 64 is rotatably connected to the rotating sleeve 61 through a bearing, and the bottom of the rotating shaft 64 is connected to the synchronous driving mechanism 66. The synchronous driving mechanism 66 is located on the support frame 62;

[0057] Two rotating shafts 67 are provided, and the two rotating shafts 67 are rotatably connected to the two ends of the support frame 62, and the two rotating shafts 67 are connected to the synchronous driving mechanism 66;

[0058] The synchronous driving mechanism 66 includes a driving gear 661, a first steering gear 662, a second steering gear 663, a third steering gear 664 and a synchronous belt 665. The driving gear 661 is fixedly mounted on the bottom of the rotating shaft 64. The first steering gear 662 and the second steering gear 663 are respectively fixedly sleeved on the tops of the two rotating shafts 67. The second steering gear 663 is meshed and connected with the third steering gear 664. The third steering gear 664 is rotatably connected to the support frame 62 through a gear shaft. The synchronous belt 665 is transmission-connected to the outside of the first steering gear 662, the driving gear 661 and the third steering gear 664.

[0059] The swing member 68 is installed at the bottom of the rotating shaft 67, and the swing member 68 is used to drive the graphite stirring rod 2;

[0060] The limiting plate 69 is located at the two swinging members 68 , and the limiting plate 69 is fixedly mounted on the bottom of the supporting frame 62 through a connecting frame 691 .

[0061] See also Figures 9 to 12 The swing member 68 includes a swing plate 681, a swing shaft 682, a swing support rod 683, a driving shaft 684, a driving frame 685 and a rotating member 686. One end of the swing plate 681 is fixedly connected to the bottom of the rotating shaft 67, and the swing shaft 682 is fixedly installed at the bottom of the swing plate 681 and away from one end of the rotating shaft 67;

[0062] One end of the swing support rod 683 is rotatably connected to the rotating shaft 67, and the other end of the swing support rod 683 is rotatably connected to the driving shaft 684, and the driving shaft 684 is fixedly installed on the driving frame 685. The position of the limit plate 69 corresponding to the driving frame 685 is provided with a moving opening 692, and the driving frame 685 slides through the moving opening 692, and the top of the graphite stirring rod 2 passes through the driving frame 685, and the graphite stirring rod 2 is rotatably connected to the driving frame 685;

[0063] The rotating member 686 is installed on the pushing frame 685 , and the rotating member 686 is used to drive the graphite stirring rod 2 .

[0064] See also Figure 11 to Figure 12 The rotating member 686 includes a rotating sleeve 6861, a moving gear 6862 and a fixed rack 6863. The rotating sleeve 6861 is rotatably connected to the pushing frame 685, and the rotating sleeve 6861 is fixedly sleeved on the outside of the graphite stirring rod 2. The moving gear 6862 is fixedly sleeved on the outside of the rotating sleeve 6861, and the moving gear 6862 is meshed with the fixed gear. The fixed rack 6863 is fixedly installed at the bottom of the limiting plate 69 and offset from the moving opening 692.

[0065] Therefore, when the pushing frame 685 drives the graphite stirring rod 2 to reciprocate along the moving opening 692 at the limiting plate 69, the moving gear 6862 on the outside of the graphite stirring rod 2 engages with the fixed rack 6863, so that the moving rod gear drives the graphite stirring rod 2 to rotate through the rotating sleeve 6861, thereby achieving sufficient mixing of the aluminum liquid and enabling the rotating nozzle 3 to fully spray the inert gas.

[0066] Specific implementation process: when the rotating sleeve 61 drives the support frame 62 to rotate relative to the sealing top shell 5, the rotating motor 651 synchronously drives the rotating shaft 64 to rotate, and when the rotating shaft 64 rotates, it drives the driving gear 661 to rotate, and the driving gear 661 drives the synchronous belt 665 for transmission, and the synchronous belt 665 further drives the first steering gear 662 to rotate, and because the second steering gear 663 is meshed with the third steering gear 664, the second rotating gear and the first rotating gear are further rotated in opposite directions, and the two rotating shafts 67 are further rotated in opposite directions;

[0067] When the rotating shaft 67 rotates, the swing plate 681 is further rotated, and the swing plate 681 pushes the swing frame to move along the moving port 692 through the swing shaft 682, the swing support rod 683 and the driving shaft 684, and then the two driving frames 685 rotate along the inside of the refining tank 1 through the limit plate 69, and drive the graphite stirring rod 2 thereon to rotate and stir synchronously relative to the inside of the refining tank 1. At the same time, the two graphite stirring rods 2 can move in opposite directions, so that the aluminum liquid is squeezed between the two graphite stirring rods 2 or between the graphite stirring rod 2 and the inner wall of the refining tank 1, and the gas is further discharged.

[0068] At the same time, under the connection of the rotating member 686, the graphite stirring rod 2 is rotated, so that the inert gas can be fully dispersed in the aluminum liquid through the rotating nozzle 3, thereby driving the hydrogen to overflow.

[0069] See also Figures 1 to 3 The air extraction mechanism 9 includes an air storage shell 91, an air suction pump 92 and an air extraction hose 93. The air storage shell 91 is fixedly mounted on the supporting base plate 101, and the output end of the air suction pump 92 is connected to the air storage shell 91, the input end of the air suction pump 92 is connected to the air extraction hose 93, and one end of the air extraction hose 93 is connected to the air suction hole 51 at the bottom of the sealed top shell 5.

[0070] Specific implementation process: As the inert gas is dispersed into the aluminum liquid, the overflowed hydrogen and the remaining gases are operated through the suction pump 92, so that a relative negative pressure state is formed between the sealed top shell 5 and the refining tank 1, so that the hydrogen enters the gas storage shell 91 through the suction hose 93 for storage and collection, thereby ensuring that the hydrogen fully overflows and preventing the overflowed hydrogen from entering the aluminum liquid again.

[0071] The gas injection mechanism 8 includes a gas supply shell 81, an air extraction pump 82, an air supply hose 83, an air supply fixed tube 84, an annular gas injection shell 85, an annular plate 86 and an air guide member 87. The gas supply shell 81 is installed on the top of the gas storage shell 91, and the input end of the air extraction pump 82 is connected to the gas supply shell 81, and the output end of the air extraction pump 82 is connected to the gas supply hose 83, one end of the gas supply hose 83 is connected to the gas supply fixed tube 84, the gas supply fixed tube passes through the connecting plate 7, and one end of the bottom of the gas supply fixed tube 84 is connected to the annular gas injection shell 85, the annular gas injection shell 85 passes through the top of the sealing top shell 5, and the annular gas injection shell 85 is fixedly connected to the sealing top shell 5, the annular plate 86 is rotatably connected to the bottom of the annular gas injection shell 85, and two through holes are provided on the annular plate 86, and two gas guide members 87 are provided, and the two gas guide members 87 are respectively connected to the two graphite stirring rods 2.

[0072] The air guide part 87 includes a transfer sleeve 871, a guide block 872, a synchronization rod 873 and a telescopic tube 874. A positioning port is provided on the support frame 62 at a position corresponding to the transfer sleeve 871. The transfer sleeve 871 passes through the positioning port. Two guide blocks 872 are provided. The two guide blocks 872 are fixedly installed on the outside of the transfer sleeve 871. The transfer sleeve 871 is slidably connected to the positioning port through the two guide blocks 872. Two synchronization rods 873 are provided. The two synchronization rods 873 are fixedly installed on the top of the transfer sleeve 871. The telescopic tube 874 is located between the two synchronization rods 873. One end of the telescopic tube 874 is connected to the transfer sleeve 871, and the other end of the telescopic tube 874 is connected to the through hole. The top of the graphite stirring rod 2 is connected to the transfer sleeve 871, and the graphite stirring rod 2 is rotatably connected to the transfer sleeve 871 through a bearing.

[0073] Specific implementation process: that is, when the graphite stirring rod 2 is rotating, self-rotating and moving along the inside of the refining tank 1, the rotation of the graphite stirring rod 2 is not affected by the connection of the transfer sleeve 871 and the telescopic tube 874. At the same time, through the vacuum pump 82, the inert gas enters the graphite stirring rod 2 through the gas supply hose 83, the gas supply fixed tube 84, the annular gas injection shell 85, the telescopic tube 874 and the transfer sleeve 871, and finally overflows from the rotating nozzle 3.

[0074] Embodiment 2

[0075] Please refer to Figure 4 Embodiment 2 is a further supplementary explanation of the graphite stirring rod 2 of embodiment 1, specifically: the graphite stirring rod 2 is fixedly installed with a plurality of spherical extrusion blocks 21 from top to bottom, and the plurality of extrusion blocks 21 are fixedly installed on the outside of the graphite stirring rod 2, so that when the two graphite stirring rods 2 move toward each other, they can extrude the aluminum liquid between each other, further assisting the overflow of hydrogen, and at the same time, when the two graphite stirring rods 2 move in a direction away from each other, the aluminum liquid is rotated and extruded between the graphite stirring rod 2 and the refining tank 1, further assisting the full overflow of hydrogen.

[0076] Embodiment 3

[0077] See also Fig.10 and Fig.12 , Embodiment 3 is a further supplementary explanation of the pushing frame 685 in Embodiment 1, specifically: the two sides of the top of the pushing frame 685 are rotatably connected with multiple rollers 6851, and the multiple rollers 6851 are respectively located on the outside of the moving opening 692 of the limiting plate 69, and the rollers 6851 are rollingly connected with the limiting plate 69, so that through the setting of the rollers 6851, the pushing frame 685 is in contact with the limiting plate 69 through the rollers 6851, and then the sliding is changed into the rolling mode, which effectively reduces the wear of the pushing frame 685, and further ensures that the pushing frame 685 stably supports the graphite stirring rod 2.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for smelting and removing hydrogen from aluminum liquid for cast aluminum plate, comprising a refining tank (1), a graphite stirring rod (2) and a rotating nozzle (3) installed at the bottom of the graphite stirring rod (2), characterized in that: A sealing connection mechanism (4) is provided on the outer side of the top of the refining tank (1), and a sealing top shell (5) is connected to the sealing connection mechanism (4); The sealing top shell (5) is provided with a driving extrusion mechanism (6), two graphite stirring rods (2) are provided, and the driving extrusion mechanism (6) is used to extrude the aluminum liquid through the two graphite stirring rods (2) so that hydrogen overflows from the aluminum liquid; A connecting plate (7) is installed on the top of the driving extrusion mechanism (6), and a supporting member (10) is installed on the connecting plate (7), and the supporting member (10) is used to adjust the height of the sealing top shell (5) through the connecting plate (7); A gas injection mechanism (8) is provided on the top of the sealed top shell (5), and the gas injection mechanism (8) is used to inject inert gas into the two graphite stirring rods (2); The bottom of the sealed top shell (5) is provided with an air suction hole (51), and the air suction hole (51) is connected to an air suction mechanism (9), and the air suction mechanism (9) is used to suck the overflowed gas.

2. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 1, characterized in that: The sealing connection mechanism (4) comprises a support ring (41) and a sealing gasket (42); the support ring (41) is fixedly sleeved on the outer side of the top of the refining tank (1), and the sealing gasket (42) is fixedly mounted on the support ring (41); a sealing groove (52) is provided at the bottom of the sealing top shell (5) and at a position corresponding to the sealing gasket (42); the bottom of the sealing top shell (5) is located on the support ring (41) and is sealedly connected to the sealing gasket (42) via the sealing groove (52).

3. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 1, characterized in that: The driving extrusion mechanism (6) comprises a rotating sleeve (61), a support frame (62), a rotating mechanism (63), a rotating shaft (64), a rotating member (65), a synchronous driving mechanism (66), a rotating shaft (67), a swinging member (68), a limiting plate (69) and a connecting frame (691); the rotating sleeve (61) passes through the top of the sealing top shell (5), and the rotating sleeve (61) is rotatably connected to the sealing top shell (5) via a bearing; the bottom of the rotating sleeve (61) is located inside the sealing top shell (5) and is fixedly connected to the supporting frame (62); the rotating mechanism (63) is installed on the upper surface of the sealing top shell (5), and the rotating mechanism (63) is used to drive the rotating sleeve (61); and the rotating mechanism (63) is connected to the connecting plate (7); The rotating shaft (64) passes through the rotating sleeve (61), the rotating member (65) is installed on the top of the rotating sleeve (61) and is used to drive the rotating shaft (64), the rotating shaft (64) is rotatably connected to the rotating sleeve (61) through a bearing, the bottom of the rotating shaft (64) is connected to a synchronous driving mechanism (66), and the synchronous driving mechanism (66) is located on the support frame (62); Two rotating shafts (67) are provided, and the two rotating shafts (67) are rotatably connected to the two ends of the support frame (62), and the two rotating shafts (67) are connected to the synchronous driving mechanism (66); The swinging member (68) is installed at the bottom of the rotating shaft (67), and the swinging member (68) is used to drive the graphite stirring rod (2); The limiting plate (69) is located at the two swinging members (68), and the limiting plate (69) is fixedly mounted on the bottom of the supporting frame (62) via a connecting frame (691).

4. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 3, characterized in that: The rotating mechanism (63) comprises a connecting shell (631), a servo motor (632), a first rotating gear (633) and a second rotating gear (634); the connecting shell (631) is fixedly mounted on the top of the sealing top shell (5), and the connecting shell (631) is fixedly connected to the connecting plate (7); the servo motor (632) is fixedly mounted inside the connecting shell (631), and the output end of the servo motor (632) is fixedly connected to the first rotating gear (633); the first rotating gear (633) is meshedly connected to the second rotating gear (634), and the second rotating gear (634) is fixedly sleeved on the outside of the rotating sleeve (61).

5. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 3, characterized in that: The synchronous driving mechanism (66) comprises a driving gear (661), a first steering gear (662), a second steering gear (663), a third steering gear (664) and a synchronous belt (665); the driving gear (661) is fixedly mounted on the bottom of the rotating shaft (64); the first steering gear (662) and the second steering gear (663) are respectively fixedly sleeved on the tops of the two rotating shafts (67); the second steering gear (663) is meshedly connected with the third steering gear (664); the third steering gear (664) is rotatably connected to the support frame (62) via a gear shaft; and the synchronous belt (665) is transmission-connected to the outside of the first steering gear (662), the driving gear (661) and the third steering gear (664).

6. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 3, characterized in that: The swing member (68) comprises a swing plate (681), a swing shaft (682), a swing support rod (683), a driving shaft (684), a driving frame (685) and a rotating member (686); one end of the swing plate (681) is fixedly connected to the bottom of the rotating shaft (67); and the swing shaft (682) is fixedly mounted on the bottom of the swing plate (681) and at one end away from the rotating shaft (67); One end of the swing support rod (683) is rotatably connected to the rotating shaft (67), and the other end of the swing support rod (683) is rotatably connected to the driving shaft (684), and the driving shaft (684) is fixedly installed on the driving frame (685), and the position of the limiting plate (69) corresponding to the driving frame (685) is provided with a moving opening (692), and the driving frame (685) slides through the moving opening (692), and the top of the graphite stirring rod (2) passes through the driving frame (685), and the graphite stirring rod (2) is rotatably connected to the driving frame (685); The rotating member (686) is installed on the driving frame (685), and the rotating member (686) is used to drive the graphite stirring rod (2).

7. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 1, characterized in that: The support member (10) comprises a support bottom plate (101), universal wheels (102), a fixing frame (103) and a lifting mechanism (104); the support bottom plate (101) is located outside the refining tank (1); a plurality of universal wheels (102) are provided, and the plurality of universal wheels (102) are all installed at the bottom of the support bottom plate (101); The fixing frame (103) is fixedly mounted on one end of the top of the supporting base plate (101), and the lifting mechanism (104) is mounted on the fixing frame (103), and one end of the connecting plate (7) is connected to the lifting mechanism (104).

8. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 1, characterized in that: The air extraction mechanism (9) comprises an air storage shell (91), an air suction pump (92) and an air extraction hose (93); the air storage shell (91) is fixedly mounted on a supporting base plate (101); the output end of the air suction pump (92) is in communication with the air storage shell (91); the input end of the air suction pump (92) is in communication with the air extraction hose (93); one end of the air extraction hose (93) is in communication with an air suction hole (51) at the bottom of the sealed top shell (5).

9. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 1, characterized in that: The gas injection mechanism (8) comprises a gas supply shell (81), a gas extraction pump (82), a gas supply hose (83), a gas supply fixed pipe (84), an annular gas injection shell (85), an annular plate (86) and a gas guide (87); the gas supply shell (81) is installed on the top of the gas storage shell (91); the input end of the gas extraction pump (82) is connected to the gas supply shell (81); the output end of the gas extraction pump (82) is connected to the gas supply hose (83); one end of the gas supply hose (83) is connected to the gas supply fixed pipe (84); the gas supply The annular plate (86) is rotatably connected to the bottom of the annular gas injection shell (85), and the annular plate (86) is provided with two through holes. The annular plate (86) is provided with two gas guides (87), and the two gas guides (87) are respectively connected to the two graphite stirring rods (2).

10. The aluminum liquid smelting and dehydrogenation device for cast aluminum plate according to claim 9, characterized in that: The air guide (87) comprises a transfer sleeve (871), a guide block (872), a synchronization rod (873) and a telescopic tube (874). A positioning opening is provided on the support frame (62) and corresponds to the position of the transfer sleeve (871). The transfer sleeve (871) passes through the positioning opening. Two guide blocks (872) are provided. The two guide blocks (872) are fixedly mounted on the outside of the transfer sleeve (871). The transfer sleeve (871) is slidably connected to the positioning opening through the two guide blocks (872). The synchronous rod (873) is dynamically connected, and two synchronous rods (873) are provided. The two synchronous rods (873) are fixedly installed on the top of the transfer sleeve (871). The telescopic tube (874) is located between the two synchronous rods (873). One end of the telescopic tube (874) is connected to the transfer sleeve (871), and the other end of the telescopic tube (874) is connected to the through hole. The top of the graphite stirring rod (2) is connected to the transfer sleeve (871), and the graphite stirring rod (2) is rotatably connected to the transfer sleeve (871) through a bearing.

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