Molten aluminum refining equipment for aluminum alloy smelting

Abstract

The invention relates to the technical field of aluminum alloy smelting, in particular to aluminum alloy smelting molten aluminum refining equipment which comprises a refining tank body, a stirring rod, a servo motor, a supporting plate, a lifting mechanism and a walking trolley, the lifting mechanism is installed at one end of the walking trolley, and the supporting plate is installed at the output end of the lifting mechanism; the servo motor is installed at one end of the supporting plate, the output end of the servo motor is fixedly connected with the stirring rod, the stirring rod is used for stirring molten aluminum in the refining tank body, and the outer side of the stirring rod is sleeved with a liquid guide sleeve; according to the molten aluminum refining equipment for aluminum alloy smelting, inert gas can fully absorb hydrogen in molten aluminum and adsorb oxidizing slag, meanwhile, the mixed molten aluminum is discharged into the refining tank body again, and the falling molten aluminum mixes and presses down a refining agent floating on the upper surface of the molten aluminum, so that the refining agent can be fully mixed into the molten aluminum; and the molten aluminum is fully refined.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy smelting, and in particular to aluminum liquid refining equipment for aluminum alloy smelting. Background Art

[0002] The main raw materials of aluminum alloy include bauxite, alumina, scrap aluminum, etc. Bauxite is refined to obtain alumina, and alumina is then electrolyzed to obtain primary aluminum. The purpose of aluminum liquid refining is to remove gases (such as hydrogen), non-metallic inclusions (such as oxides) and dissolved metal impurities in the aluminum liquid. Common refining methods include air blowing refining (such as argon refining), adding refining agents (such as hexachloroethane), and electromagnetic stirring.

[0003] In the existing aluminum liquid refining process, a refining agent is added into a refining tank, and then the aluminum liquid is stirred by a stirring rod. While stirring, an inert gas is introduced to achieve the refining of the aluminum liquid and remove impurities contained in the aluminum liquid. However, when the aluminum liquid refining agent is added, since the refining agent is in powder form, the refining agent is easy to float on the surface of the aluminum liquid. At the same time, during the refining process of the aluminum liquid, the floating impurities wrap more refining agent, which easily leads to the refining agent cannot be fully mixed with the aluminum liquid, thereby affecting the refining of the aluminum liquid. Summary of the invention

[0004] The object of the present invention is to provide an aluminum liquid refining device for aluminum alloy smelting to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an aluminum liquid refining device for aluminum alloy smelting, comprising a refining tank body, a stirring rod, a servo motor, a support plate, a lifting mechanism and a traveling trolley, wherein the lifting mechanism is installed at one end of the traveling trolley, and the support plate is installed at the output end of the lifting mechanism, the servo motor is installed at one end of the support plate, and the output end of the servo motor is fixedly connected to the stirring rod, the stirring rod is used to stir the aluminum liquid inside the refining tank body, a liquid guide sleeve is provided on the outside of the stirring rod, and a liquid guide mechanism is provided on the outside of the stirring rod and inside the corresponding liquid guide sleeve;

[0006] A rotating shell is installed on the top of the liquid-guiding sleeve, and the rotating shell is rotatably sleeved on the outside of the stirring rod through a bearing, and the top of the rotating shell is rotatably connected to the bottom of the supporting plate;

[0007] A rotating member is installed between the rotating shell and the stirring rod, and the rotating member is connected to the supporting plate;

[0008] A mixing mechanism is fixedly installed on the outer side of the top end of the liquid guiding sleeve. The mixing mechanism is used to mix the aluminum liquid with the refining agent and the inert gas, and the mixing mechanism guides the mixed aluminum liquid into the refining tank body. Two openings are provided at the top end of the liquid guiding sleeve corresponding to the mixing mechanism, and the aluminum liquid enters the mixing mechanism through the two openings through the liquid guiding mechanism.

[0009] Wherein, the liquid guiding mechanism comprises a spiral blade fixedly sleeved on the outside of the stirring rod, the spiral blade is inside the liquid guiding sleeve, and the top of the spiral blade extends to the opening.

[0010] Wherein, the rotating member includes a rotating gear, a transmission gear, a rotating shaft and an inner gear ring, the rotating gear is fixedly sleeved on the outer side of the top of the stirring rod, the transmission gear is provided with a plurality of transmission gears, the plurality of transmission gears are arranged around the outer side of the rotating gear, and the transmission gear is meshed and connected with the rotating gear, the bottom of the rotating shaft is fixedly connected with the center of the transmission shaft, and the rotating shaft is rotatably connected to the bottom of the support plate;

[0011] The inner gear ring is meshed with a plurality of transmission gears, and the outer wall of the inner gear ring is rotatably connected with the inner wall of the rotating shell. Through the provided rotating member, the stirring rod can drive the liquid guide sleeve on its outer side to fully rotate while stirring inside the refining tank body.

[0012] The mixing mechanism comprises a liquid mixing shell, an air intake mechanism and a liquid discharge mechanism, wherein the liquid mixing shell is located at the bottom of the rotating shell, the liquid mixing shell is fixedly sleeved on the outside of the liquid guide sleeve, and the liquid mixing shell is located outside the opening, and a liquid mixing cavity is provided inside the liquid mixing shell, and the liquid mixing cavity is communicated with the opening;

[0013] An air inlet groove is provided on the top of the mixing shell, the air inlet mechanism is connected to the support plate, and the air inlet mechanism is communicated with the air inlet groove;

[0014] The bottom of the mixing shell is provided with an annular opening, and the annular opening is communicated with the mixing cavity. The liquid discharge mechanism is located at the annular opening. Through the provided mixing mechanism, the aluminum liquid is fully mixed with the inert gas and the refining agent.

[0015] The air intake mechanism includes an air guide cover, an air guide ring, an air intake pipe, an air intake shell and an air intake hose. The air guide cover is fixedly mounted on the top of the liquid mixing shell, and the bottom of the air guide cover is connected to the air intake groove. The bottom of the air guide ring is rotatably connected to the inside of the air guide cover. The air guide ring is fixedly mounted on the bottom of the support plate, and two communicating through holes are provided between the air guide ring and the support plate.

[0016] There are two air intake pipes, both of which are fixedly mounted on the support plate, and the air intake pipes are connected to the through hole;

[0017] The air intake shell is connected to two air intake pipes, one end of the air intake hose is connected, and the other end of the air intake hose is connected to the air supply equipment, and the air supply equipment introduces the inert gas through the air intake hose, and the air intake mechanism is provided to achieve the function of introducing the inert gas.

[0018] Among them, the drainage mechanism includes an annular filter plate that is connected to the annular opening. The annular filter plate is provided with connecting ears on both sides outside the annular opening, and the connecting ears are detachably connected to the bottom of the mixing liquid shell through locking bolts. The drainage mechanism is provided to achieve the function of discharging the aluminum liquid.

[0019] Wherein, a liquid guiding step is provided at the bottom of the liquid mixing cavity, and the liquid guiding step prevents aluminum liquid from accumulating.

[0020] Wherein, an air inlet ring is provided on one side of the liquid mixing shell corresponding to the air inlet groove, and the air inlet groove is connected with the liquid mixing cavity through the air inlet ring.

[0021] Among them, a ring-shaped sealing baffle is provided on the outside of the air inlet ring, and the sealing baffle is located in the mixing liquid cavity. A plurality of connecting parts are provided between the sealing baffle and the air inlet groove. The sealing baffle is provided to achieve relative sealing of the air inlet ring.

[0022] The connecting member includes a connecting rod, a limit plate, a buffer spring and a connecting sleeve, one end of the connecting rod is fixedly connected to the inner wall of the air inlet groove, and the connecting rod passes through the air inlet ring, and the end of the connecting rod located outside the air inlet ring is fixedly connected to the limit plate;

[0023] The buffer spring is sleeved on the outside of the connecting rod, one end of the buffer spring is connected to the limit plate, and the other end of the buffer spring is fixedly connected to one end inside the connecting sleeve. The connecting sleeve is arranged on the outside of the connecting rod, the buffer sleeve passes through the air inlet ring, and one end of the buffer sleeve located at the air inlet ring is fixedly connected to the sealing baffle, and the relative connection between the sealing baffle and the air inlet ring is realized through the connecting piece.

[0024] The present invention has at least the following beneficial effects:

[0025] 1. When the present invention is used, the liquid guiding sleeve and the liquid guiding mechanism are provided on the outer side of the stirring rod, so that while the stirring rod mixes the aluminum liquid and the refining agent, the aluminum liquid can be introduced into the liquid guiding sleeve, and then introduced into the mixing mechanism again through the liquid guiding sleeve, so that the aluminum liquid can be fully mixed with the inert gas again, so that the inert gas can fully absorb the hydrogen in the aluminum liquid and adsorb the oxide slag, and at the same time, the mixed aluminum liquid is discharged into the refining tank body again, and the falling aluminum liquid mixes and presses down the refining agent floating on the upper surface of the aluminum liquid at the same time, so that the refining agent can be fully mixed into the aluminum liquid, so as to achieve full refining of the aluminum liquid.

[0026] 2. When the present invention is in use, the liquid discharge mechanism provided at the bottom of the mixing shell can discharge the aluminum liquid into the interior of the refining tank body while filtering the impurities in the aluminum liquid after the reaction, thereby further improving the efficiency of aluminum liquid refining. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a side view of the overall structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of the refining tank body of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the liquid guiding sleeve of the present invention;

[0031] Figure 5 This is a schematic diagram of the explosion structure of the support plate and the air guide ring of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the annular filter plate of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the liquid guiding mechanism of the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the rotating part of the present invention;

[0035] Fig. 9 This is a schematic diagram of the internal structure of the mixed liquid shell of the present invention;

[0036] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure of area A in the middle.

[0037] In the figure: 1, refining tank body; 2, stirring rod; 21, servo motor; 22, liquid guide sleeve; 221, opening; 23, rotating shell; 3, support plate; 4, lifting mechanism; 41, lifting shell; 42, lifting motor; 43, slider; 44, lifting screw; 5, walking trolley; 6, liquid guide mechanism; 61, spiral blade; 7, rotating part; 71, rotating gear; 72, transmission gear; 73, rotating shaft; 74, internal gear ring; 8, mixing mechanism; 81, mixing shell; 811, mixing Liquid cavity body; 8111, liquid guide step; 812, air inlet groove; 813, annular opening; 814, air inlet ring opening; 8141, sealing baffle; 82, air inlet mechanism; 821, air guide cover; 822, air guide ring; 823, air inlet pipe; 824, air inlet shell; 825, air inlet hose; 826, through hole; 83, liquid discharge mechanism; 831, annular filter plate; 832, connecting ear; 9, connecting piece; 91, connecting rod; 92, limit plate; 93, buffer spring; 94, connecting sleeve. DETAILED DESCRIPTION

[0038] 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.

[0039] Embodiment 1

[0040] Please refer to Figures 1 to 3 , an aluminum liquid refining equipment for aluminum alloy smelting, comprising a refining tank body 1, a stirring rod 2, a servo motor 21, a support plate 3, a lifting mechanism 4 and a traveling trolley 5, a plurality of self-braking universal wheels are installed at the bottom of the traveling trolley 5, when the traveling trolley 5 moves to the outside of the refining tank body 1 and adjusts the relative position, the self-braking universal wheels are used to make the traveling trolley 5 relatively fixed relative to the refining tank body 1, which plays a role in supporting the lifting mechanism 4, the lifting mechanism 4 is installed at one end of the traveling trolley 5, and the support plate 3 is installed at the output end of the lifting mechanism 4, the servo motor 21 is installed at one end of the support plate 3, and the output end of the servo motor 21 is fixedly connected to the stirring rod 2, the stirring rod 2 is used to stir the aluminum liquid inside the refining tank body 1, the outer side of the stirring rod 2 is provided with a liquid guide sleeve 22, and the outer side of the stirring rod 2 and the inner side of the liquid guide sleeve 22 are provided with a liquid guide mechanism 6;

[0041] The liquid guiding mechanism 6 includes a spiral blade 61 fixedly sleeved on the outside of the stirring rod 2, the spiral blade 61 guides the liquid inside the liquid guiding sleeve 22, and the top of the spiral blade 61 extends to the opening 221;

[0042] Therefore, when the stirring rod 2 rotates, the stirring rod 2 synchronously drives the spiral blade 61 to rotate, and because the spiral blade 61 cooperates with the liquid guide sleeve 22, the spiral blade 61 rotates and guides the aluminum liquid into the liquid guide sleeve 22;

[0043] See also Figures 7 and 8 A rotating shell 23 is installed on the top of the liquid guide sleeve 22, and the rotating shell 23 is rotatably sleeved on the outside of the stirring rod 2 through a bearing, and the top of the rotating shell 23 is rotatably connected to the bottom of the support plate 3;

[0044] A rotating member 7 is installed between the rotating shell 23 and the stirring rod 2, and the rotating member 7 is connected to the supporting plate 3;

[0045] The rotating member 7 includes a rotating gear 71, a transmission gear 72, a rotating shaft 73 and an inner gear ring 74. The rotating gear 71 is fixedly sleeved on the outer side of the top of the stirring rod 2. A plurality of transmission gears 72 are provided. The plurality of transmission gears 72 are arranged around the outer side of the rotating gear 71, and the transmission gears 72 are meshed and connected with the rotating gear 71. The bottom of the rotating shaft 73 is fixedly connected with the center of the transmission shaft, and the rotating shaft 73 is rotatably connected to the bottom of the support plate 3.

[0046] The inner gear ring 74 is meshedly connected with the plurality of transmission gears 72, and the outer wall of the inner gear ring 74 is rotatably connected with the inner wall of the rotating shell 23;

[0047] Specific implementation process: the servo motor 21 is operated to rotate the stirring rod 2 relative to the support plate 3 and the refining tank body 1, and when the stirring rod 2 rotates, the spiral blade 61 on its outer side is further rotated synchronously, so that the aluminum liquid at the bottom end of the refining tank body 1 enters the liquid guide sleeve 22, and when the stirring rod 2 rotates, the stirring rod 2 synchronously drives the rotating gear 71 on its outer side to rotate, and when the rotating gear 71 rotates, it further mobilizes the multiple transmission gears 72 on its outer side to rotate synchronously. Since the multiple transmission gears 72 are meshed and connected with the internal gear ring 74, the internal gear ring 74 drives the rotating shell 23 to rotate relative to the bottom of the support plate 3. When the rotating shell 23 rotates, the liquid guide sleeve 22 also rotates. When the liquid guide sleeve 22 rotates, the aluminum liquid is rotated and stirred, so that the aluminum liquid is fully mixed and refined with the refining agent and the inert gas.

[0048] A mixing mechanism 8 is fixedly installed on the outer side of the top end of the liquid guiding sleeve 22. The mixing mechanism 8 is used to mix the aluminum liquid with the refining agent and the inert gas, and the mixing mechanism 8 introduces the mixed aluminum liquid into the refining tank body 1. Two openings 221 are provided at the top end of the liquid guiding sleeve 22 and correspond to the mixing mechanism 8, and the aluminum liquid enters the mixing mechanism 8 through the two openings 221 through the liquid guiding mechanism 6.

[0049] Please refer to Figures 4 to 7 The mixing mechanism 8 includes a liquid mixing shell 81, an air intake mechanism 82 and a liquid discharge mechanism 83. The liquid mixing shell 81 is located at the bottom of the rotating shell 23. The liquid mixing shell 81 is fixedly sleeved on the outside of the liquid guide sleeve 22, and the liquid mixing shell 81 is located on the outside of the opening 221. A liquid mixing cavity 811 is provided inside the liquid mixing shell 81, and the liquid mixing cavity 811 is communicated with the opening 221. In this embodiment, there is a certain gap between the edge of the liquid mixing shell 81 and the refining tank body 1, so as to ensure the discharge of the gas after the reaction.

[0050] An air inlet groove 812 is provided at the top of the liquid mixing shell 81, and the air inlet mechanism 82 is connected to the support plate 3, and the air inlet mechanism 82 is communicated with the air inlet groove 812;

[0051] An annular opening 813 is provided at the bottom of the liquid mixing shell 81 , and the annular opening 813 is communicated with the liquid mixing cavity 811 , and the liquid discharge mechanism 83 is located at the annular opening 813 .

[0052] The air intake mechanism 82 includes an air guide cover 821, an air guide ring 822, an air intake pipe 823, an air intake shell 824 and an air intake hose 825. The air guide cover 821 is fixedly installed on the top of the liquid mixing shell 81, and the bottom of the air guide cover 821 is connected to the air intake groove 812. The bottom of the air guide ring 822 is rotatably connected to the inside of the air guide cover 821. The air guide ring 822 is fixedly installed on the bottom of the support plate 3, and two communicating through holes 826 are provided between the air guide ring 822 and the support plate 3.

[0053] Two air inlet pipes 823 are provided, and both air inlet pipes 823 are fixedly mounted on the support plate 3, and the air inlet pipes 823 are communicated with the through hole 826;

[0054] The air intake shell 824 is connected to the two air intake pipes 823, and one end of the air intake hose 825 is connected. The other end of the air intake hose 825 is connected to the air supply equipment, and the air supply equipment introduces the inert gas through the air intake hose 825. In this embodiment, the air supply equipment is installed on the walking trolley 5. When the air supply equipment is running, the inert gas is introduced into the air intake hose 825.

[0055] An air inlet ring 814 is provided on one side of the liquid mixing shell 81 corresponding to the air inlet groove 812 , and the air inlet groove 812 is communicated with the liquid mixing cavity 811 through the air inlet ring 814 .

[0056] A ring-shaped sealing baffle 8141 is disposed outside the air inlet ring 814 , and the sealing baffle 8141 is located at the liquid mixing cavity 811 . A plurality of connectors 9 are disposed between the sealing baffle 8141 and the air inlet groove 812 .

[0057] Please refer to Figures 9 and 10The connecting member 9 includes a connecting rod 91, a limiting plate 92, a buffer spring 93 and a connecting sleeve 94. One end of the connecting rod 91 is fixedly connected to the inner wall of the air inlet groove 812, and the connecting rod 91 passes through the air inlet ring 814. One end of the connecting rod 91 located outside the air inlet ring 814 is fixedly connected to the limiting plate 92.

[0058] The buffer spring 93 is sleeved on the outside of the connecting rod 91, one end of the buffer spring 93 is connected to the limit plate 92, and the other end of the buffer spring 93 is fixedly connected to one end inside the connecting sleeve 94. The connecting sleeve 94 is arranged on the outside of the connecting rod 91, and the buffer sleeve passes through the air inlet ring 814, and one end of the buffer sleeve located at the air inlet ring 814 is fixedly connected to the sealing baffle 8141. When the inert gas is not introduced into the air inlet groove 812, one side of the ring-shaped sealing baffle 8141 is attached to the outside of the air inlet ring 814, so as to achieve the function of sealing the air inlet ring 814.

[0059] Specific implementation process: while the stirring rod 2 is rotating, part of the aluminum liquid is introduced into the opening 221 through the spiral blade 61, and enters the mixing liquid chamber 811 through the opening 221. At this time, the gas supply device is running, and the inert gas is introduced into the air intake shell 824 through the air intake hose 825, and is respectively introduced into the air intake pipe 823 through the air intake shell 824, and is passed into the air guide cover 821 through the two air intake pipes 823. The inert gas then enters the air intake groove 812, and when the inert gas is introduced, the sealing baffle 8141 is further pushed by the air pressure, and the multiple connecting sleeves 94 thereon are relative to the connecting sleeves 94. The connecting rod 91 moves and squeezes the buffer spring 93. At this time, the sealing baffle 8141 is separated from the air inlet ring 814, and the inert gas enters the mixed liquid cavity 811 through the air inlet ring 814 and mixes with the flowing aluminum liquid. The inert gas can fully absorb the hydrogen in the aluminum liquid and adsorb the oxide slag. The aluminum liquid further enters the refining tank body 1 again through the drainage mechanism 83. At the same time, the reacted gas is synchronously discharged through the drainage mechanism 83. At the same time, the large particles of impurities after the reaction are located in the mixed liquid cavity 811, thereby realizing the separation of impurities in the aluminum liquid refining process.

[0060] The drainage mechanism 83 includes an annular filter plate 831 which is cooperatively connected to the annular opening 813. The annular filter plate 831 is provided with a plurality of filter holes, thereby ensuring that the aluminum liquid can flow from the annular filter plate 831 into the interior of the refining tank body 1. The annular filter plate 831 is provided with connecting ears 832 on both sides outside the annular opening 813, and the connecting ears 832 are detachably connected to the bottom of the mixing liquid shell 81 through locking bolts.

[0061] A liquid guiding step 8111 is provided at the bottom of the liquid mixing chamber 811 to prevent aluminum liquid from accumulating.

[0062] Specific implementation process: After the aluminum liquid has fully reacted inside the mixing liquid chamber 811, it falls into the refining tank body 1 again through the annular filter plate 831, and in the process of falling, the refining agent floating on the upper surface of the aluminum liquid is simultaneously pressed down, so that the refining agent is mixed and enters into the aluminum liquid, thereby achieving sufficient mixing between the aluminum liquid and the refining agent. At the same time, when it is necessary to remove impurities inside the mixing liquid chamber 811, the stirring rod 2 can be moved out of the refining tank body 1, and the impurities can be removed by disassembling the annular filter plate 831.

[0063] Embodiment 2

[0064] See also Figure 1 to Figure 2 , Embodiment 2 is a further supplementary description of the lifting mechanism 4 in Embodiment 1, specifically: the lifting mechanism 4 includes a lifting shell 41, a lifting motor 42, a slider 43 and a lifting screw 44, the lifting shell 41 is fixedly mounted on one side of the top of the traveling trolley 5, and the lifting motor 42 is fixedly mounted on the top of the lifting shell 41, the output end of the lifting motor 42 is fixedly connected to the lifting screw 44, and the lifting screw 44 is rotatably connected to the inside of the lifting shell 41, the slider 43 slides through the sliding opening on one side of the lifting shell 41, and the slider 43 is threadedly sleeved on the outside of the lifting screw 44, and one end of the support plate 3 is fixedly connected to the slider 43;

[0065] Therefore, when the height of the stirring rod 2 relative to the inside of the refining tank body 1 is adjusted, the lifting motor 42 is operated to rotate the lifting screw 44. When the lifting screw 44 rotates, it provides driving force to the slider 43. Since the slider 43 is limited by the lifting shell 41, it synchronously drives the support plate 3 to be adjusted up and down relative to the refining tank body 1, and further drives the stirring rod 2 to be adjusted in height relative to the refining tank.

[0066] 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.

[0067] 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 molten aluminum refining device for aluminum alloy smelting, comprising a refining tank body (1), a stirring rod (2), a servo motor (21), a support plate (3), a lifting mechanism (4) and a traveling trolley (5), wherein the lifting mechanism (4) is mounted on one end of the traveling trolley (5), and the support plate (3) is mounted at the output end of the lifting mechanism (4), the servo motor (21) is mounted on one end of the support plate (3), and the output end of the servo motor (21) is fixedly connected to the stirring rod (2), and the stirring rod (2) is used to stir the aluminum liquid inside the refining tank body (1), characterized in that: The outer side of the stirring rod (2) is provided with a liquid guide sleeve (22), and the outer side of the stirring rod (2) and the inside of the liquid guide sleeve (22) are provided with a liquid guide mechanism (6); A rotating shell (23) is installed on the top of the liquid-conducting sleeve (22), and the rotating shell (23) is rotatably sleeved on the outside of the stirring rod (2) through a bearing, and the top of the rotating shell (23) is rotatably connected to the bottom of the support plate (3); A rotating member (7) is installed between the rotating shell (23) and the stirring rod (2), and the rotating member (7) is connected to the supporting plate (3); A mixing mechanism (8) is fixedly mounted on the outer side of the top end of the liquid guiding sleeve (22). The mixing mechanism (8) is used to mix the aluminum liquid with the refining agent and the inert gas, and the mixing mechanism (8) guides the mixed aluminum liquid into the refining tank body (1). Two openings (221) are provided at the top end of the liquid guiding sleeve (22) and corresponding to the mixing mechanism (8), and the aluminum liquid enters the mixing mechanism (8) through the two openings (221) through the liquid guiding mechanism (6).

2. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 1, characterized in that: The liquid guiding mechanism (6) comprises a spiral blade (61) fixedly sleeved on the outside of the stirring rod (2), the spiral blade (61) is inside the liquid guiding sleeve (22), and the top of the spiral blade (61) extends to the opening (221).

3. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 1, characterized in that: The rotating member (7) comprises a rotating gear (71), a transmission gear (72), a rotating shaft (73) and an inner gear ring (74); the rotating gear (71) is fixedly sleeved on the outer side of the top of the stirring rod (2); a plurality of transmission gears (72) are provided, and the plurality of transmission gears (72) are arranged around the outer side of the rotating gear (71); the transmission gear (72) is meshedly connected with the rotating gear (71); the bottom of the rotating shaft (73) is fixedly connected with the center of the transmission shaft, and the rotating shaft (73) is rotatably connected to the bottom of the support plate (3); The inner gear ring (74) is meshedly connected with a plurality of transmission gears (72), and the outer wall of the inner gear ring (74) is rotatably connected with the inner wall of the rotating shell (23).

4. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 1, characterized in that: The mixing mechanism (8) comprises a liquid mixing shell (81), an air intake mechanism (82) and a liquid discharge mechanism (83); the liquid mixing shell (81) is located at the bottom of the rotating shell (23); the liquid mixing shell (81) is fixedly sleeved on the outside of the liquid guiding sleeve (22); the liquid mixing shell (81) is located outside the opening (221); a liquid mixing cavity (811) is provided inside the liquid mixing shell (81); and the liquid mixing cavity (811) is communicated with the opening (221); An air inlet groove (812) is provided on the top of the liquid mixing shell (81), the air inlet mechanism (82) is connected to the support plate (3), and the air inlet mechanism (82) is in communication with the air inlet groove (812); The bottom of the liquid mixing shell (81) is provided with an annular opening (813), and the annular opening (813) is in communication with the liquid mixing cavity (811), and the liquid discharge mechanism (83) is located at the annular opening (813).

5. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 5 is characterized in that: The air intake mechanism (82) comprises an air guide cover (821), an air guide ring (822), an air intake pipe (823), an air intake shell (824) and an air intake hose (825); the air guide cover (821) is fixedly mounted on the top of the liquid mixing shell (81), and the bottom of the air guide cover (821) is connected to the air intake groove (812); the bottom of the air guide ring (822) is rotatably connected to the inside of the air guide cover (821); the air guide ring (822) is fixedly mounted on the bottom of the support plate (3), and two communicating through holes (826) are provided between the air guide ring (822) and the support plate (3); Two air inlet pipes (823) are provided, and both of the two air inlet pipes (823) are fixedly mounted on the support plate (3), and the air inlet pipes (823) are in communication with the through hole (826); The air intake shell (824) is in communication with two air intake pipes (823), one end of the air intake hose (825) is connected, and the other end of the air intake hose (825) is connected to the air supply device, and the air supply device introduces the inert gas through the air intake hose (825).

6. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 5, characterized in that: The liquid discharge mechanism (83) comprises an annular filter plate (831) that is cooperatively connected to the annular opening (813); the annular filter plate (831) is provided with connecting ears (832) on both sides outside the annular opening (813); and the connecting ears (832) are detachably connected to the bottom of the liquid mixing shell (81) via locking bolts.

7. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 6 is characterized in that: A liquid guiding step (8111) is provided at the bottom of the liquid mixing cavity (811), and the liquid guiding step (8111) prevents aluminum liquid from accumulating.

8. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 7, characterized in that: An air inlet ring (814) is provided on one side of the liquid mixing shell (81) corresponding to the air inlet groove (812), and the air inlet groove (812) is connected to the liquid mixing cavity (811) through the air inlet ring (814).

9. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 8, characterized in that: A ring-shaped sealing baffle (8141) is provided outside the air inlet ring (814), and the sealing baffle (8141) is located at the liquid mixing cavity (811). A plurality of connecting members (9) are provided between the sealing baffle (8141) and the air inlet groove (812).

10. The aluminum liquid refining equipment for aluminum alloy smelting according to claim 9, characterized in that: The connecting member (9) comprises a connecting rod (91), a limiting plate (92), a buffer spring (93) and a connecting sleeve (94); one end of the connecting rod (91) is fixedly connected to the inner wall of the air inlet groove (812), and the connecting rod (91) passes through the air inlet ring opening (814); and one end of the connecting rod (91) located outside the air inlet ring opening (814) is fixedly connected to the limiting plate (92); The buffer spring (93) is sleeved on the outside of the connecting rod (91), one end of the buffer spring (93) is connected to the limit plate (92), and the other end of the buffer spring (93) is fixedly connected to one end inside the connecting sleeve (94), the connecting sleeve (94) is arranged on the outside of the connecting rod (91), the buffer sleeve passes through the air inlet ring (814), and one end of the buffer sleeve located at the air inlet ring (814) is fixedly connected to the sealing baffle (8141).

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