Aluminum melt refining modification treatment device

Abstract

The utility model relates to the technical field of aluminum alloy production, in particular to an aluminum melt refining modification treatment device, aims to solve the technical problems of poor modification effect and material waste in the prior art, and is mainly realized by the following technical scheme. Comprising a first working chamber and a second working chamber which are parallel, and further comprises a slagging-off structure and a stirring structure, the slagging-off structure comprises a slagging-off lifting device, a slagging-off drive device and a slagging-off piece, the slagging-off drive device comprises a rotating motor, a driving gear, a driven gear and a limiting ring, the slagging-off piece comprises a fixed slag frame and a rotating slag frame, and the stirring structure comprises a first stirring piece and a second stirring piece. The modification treatment effect can be improved through two times of modification treatment, composite modification operation can be achieved according to requirements, step-by-step feeding can be carried out to control the usage amount of a modifier, molten aluminum is ensured to be pure through slagging-off operation and inclusion removal, and the production quality of subsequent aluminum alloy castings is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy production, in particular to an aluminum melt refining and modification treatment device. Background Art

[0002] Aluminum alloy is a general term for alloys based on aluminum. The main alloying elements are copper, silicon, magnesium, zinc or manganese, and the secondary alloying elements are nickel, iron, titanium, chromium or lithium. Aluminum alloy has good processing performance, light specific gravity, beautiful surface and corrosion resistance, good casting performance, and good comprehensive mechanical properties of products. It can be used to make various forms of parts and is widely used in many fields. Modification treatment is to add some fine nucleating agents (also called inoculants or modifiers) to the metal liquid to form a large number of dispersed artificial non-spontaneous crystal nuclei in the metal liquid, thereby obtaining fine casting grains to achieve the purpose of improving material properties.

[0003] In the prior art, a large amount of melting and mixing treatment is required in a working kettle during the melting and refining of aluminum alloys. The refining and modification operations are mostly performed in the same working kettle, which makes the added materials complicated and easily affects the next operation. In order to ensure the effect during the modification process, a large amount of modifier is usually added, which leads to a long modification time and waste of modifier. After the modification, the aluminum melt needs to be slag-removed to remove gas and inclusions in the aluminum melt. However, the current slag-removing device is complicated to use and inconvenient to clean up later, which affects production efficiency. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of poor deterioration effect and material waste in the prior art, thereby providing an aluminum melt refining and deterioration treatment device.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] An aluminum melt refining and modification treatment device includes a first working chamber and a second working chamber arranged in parallel, wherein the first working chamber and the second working chamber are both fixed to a frame, the bottom of the first working chamber is higher than the bottom of the second working chamber, the first working chamber and the second working chamber are connected by a drainage pipe, and a liquid outlet pipe is provided at the bottom of the second working chamber on a side away from the first working chamber, and further includes:

[0007] The slag scraping structure is arranged in the top of the first working chamber for transverse sliding. The slag scraping structure includes a slag scraping lift, a slag scraping drive and a slag scraping piece. The slag scraping lift is arranged above the first working chamber for transverse sliding. The slag scraping lift is a cylinder and controls the lifting of the slag scraping drive at the bottom. The slag scraping piece is controlled by the slag scraping drive and is arranged at the bottom of the slag scraping drive. The slag scraping drive includes a rotating motor, a driving gear and a driven gear. The driving gear is sleeved on the output shaft of the rotating motor. The rotating motor controls the rotation of the driving gear. The driven gear is meshed with the outer side of the driving gear. The slag scraping piece includes a fixed slag frame and a rotating slag frame. A driven gear is fixed to the top center of the rotating slag frame. The rotating slag frame rotates with the driven gear around the axis of the output shaft of the rotating motor;

[0008] A stirring structure, wherein the stirring structure includes a first stirring member and a second stirring member, the first stirring member is arranged at the bottom of the first working chamber, and the second stirring member is arranged at the bottom of the second working chamber, the first stirring member includes a first stirring shaft, a first-level stirring blade, a second-level stirring blade and a third-level stirring blade, and the first-level stirring blade, the second-level stirring blade and the third-level stirring blade are arranged on the outer wall of the first stirring shaft from top to bottom, the second stirring member includes a second stirring shaft, several second stirring blades and a scraper plate, and the second stirring blade and the scraper plate are both fixed on the outer wall of the second stirring shaft.

[0009] By adopting the above technical solution, the aluminum melt is first subjected to a modification treatment in the first working chamber, and the first stirring member stirs and shears after adding the modifier to ensure that the modifier is dispersed. The aluminum alloy solution treated once then enters the second working chamber for a second modification treatment. A second stirring member is arranged in the second working chamber to make the modification treatment more uniform. The two modification treatments can ensure that the aluminum alloy solution is more fully modified, effectively improving the modification treatment effect; the two modification treatments can be fed in steps, effectively controlling the amount of modifier used, reducing material waste, avoiding excessive contamination of the modifier, and achieving the purpose of clean production; the aluminum melt is subjected to a slag removal operation in the first working chamber by a slag removal member to remove inclusions and other impurities to ensure the purity of the aluminum liquid, effectively improving the quality of subsequent aluminum alloy production.

[0010] Furthermore, the first working chamber includes a supporting furnace, a melting furnace and a feeding chamber. The feeding chamber is arranged above the supporting furnace and is connected to the supporting furnace at the bottom. An inlet and outlet are opened on one side of the feeding chamber. The melting furnace is clamped in the supporting furnace.

[0011] By adopting the above technical solution, a supporting furnace and a melting furnace are set up to create a heat storage area between the supporting furnace and the melting furnace, which reduces energy loss while extending the insulation time of the metamorphic operation and facilitates subsequent cleaning operations; the inlet and outlet of the feeding chamber facilitate slag removal operations and metamorphic feeding.

[0012] Furthermore, a sealing cover is hingedly provided on the top of the support furnace, and the hinge axis between the sealing cover and the support furnace is arranged on the side of the top of the support furnace away from the inlet and outlet. The sealing cover is clamped with the melting furnace, and a filter plate is provided at the bottom of the melting furnace corresponding to the drain pipe. The drain pipe passes through the melting furnace and the bottom of the support furnace and is connected to the side wall of the second working chamber.

[0013] By adopting the above technical solution, a sealing cover is provided to insulate the melt and isolate it from external interference, thereby ensuring a stable environment during the metamorphic operation; a filter plate is provided at the inlet of the discharge pipe, so that when the aluminum alloy solution flows from the first working chamber into the second working chamber, the filter plate filters the impurities that are not removed by the slag skimmer in the first metamorphic treatment, thereby ensuring the purity of the melt entering the second working chamber and reducing the impact of impurities on the secondary metamorphic treatment.

[0014] Furthermore, a ventilation pipe is connected to the top side wall of the second working room, and the other end of the ventilation pipe is connected to a gas tank. A feeding port is opened at the top center of the second working room, and a feeding cover is provided at the feeding port.

[0015] By adopting the above technical solution, the second working room is connected to the ventilation pipe, and inert gas is introduced into the second working room to isolate the contact between the liquid surface of the aluminum alloy melt and the air, thereby reducing and avoiding hydrogen and oxide inclusions, reducing the impact of gas, and ensuring the effect of secondary metamorphism treatment.

[0016] Furthermore, the slag scraping drive also includes a limiting ring, which is coaxially arranged with the driving gear and arranged in the same horizontal plane as the driving gear. The diameter of the limiting ring is larger than the diameter of the driving gear. The limiting ring is fixed to the outside of the rotating motor through a connecting frame. The inner side wall of the limiting ring is provided with an engaging gear ring, and the engaging gear ring is engaged with the driven gear. The top and bottom of the limiting ring are both extended inward with a retaining ring, and the driven gear is clamped between the two retaining rings.

[0017] By adopting the above technical solution, the rotating motor drives the driving gear to rotate, and the driven gear meshes with the driving gear for transmission. Since the axis of the driven gear itself is fixed to the rotating slag frame and cannot rotate on its own, and the side of the driven gear away from the driving gear is clamped in the two clamping rings and meshes with the inner side of the limiting ring, the driven gear takes the axis of the driving gear as the rotating axis and rotates around the inner circumference of the limiting ring, thereby driving the rotating slag frame at the bottom to rotate.

[0018] Furthermore, the fixed slag frame is arranged along the radial direction of the limiting ring and is fixed to the bottom of the limiting ring, and the rotating slag frame is also arranged along the radial direction of the limiting ring and is sleeved on the output shaft of the rotating motor near the center of the limiting ring. The fixed slag frame and the rotating slag frame have the same structure, and both the fixed slag frame and the rotating slag frame include a vertical plate, a closing plate and a slag scraping plate, the vertical plate is arranged along the radial direction of the limiting ring, the closing plate is arranged along the outer curvature of the limiting ring and one end is fixed to the vertical plate, the slag scraping plate is fan-shaped, the vertical plate and the closing plate are both arranged perpendicular to the upper surface of the slag scraping plate, the vertical plate is fixedly connected to the side wall of one side of the slag scraping plate, and the closing plate is arranged at the end of the slag scraping plate away from the center of the limiting ring.

[0019] By adopting the above technical solution, the rotating motor cooperates with the limiting ring to fix the slag frame. After the rotating slag frame rotates one circle along the inner circle of the limiting ring, the fixed slag frame and the rotating slag frame are closed, thereby moving the surface inclusions into the formed closed space, thereby facilitating the subsequent transfer and removal of surface impurities.

[0020] Furthermore, the diameter of the secondary stirring blade is smaller than the diameter of the primary stirring blade and the diameter of the tertiary stirring blade. The primary stirring blade includes a plurality of primary blades arranged in a circular array on the first stirring shaft. The secondary stirring blade includes a plurality of secondary blades arranged in a circular array on the first stirring shaft. The tertiary stirring blade includes a plurality of tertiary blades arranged in a circular array on the first stirring shaft. The primary blade and the tertiary blade are both spiral-shaped, and the secondary blade is provided with scattered holes.

[0021] By adopting the above technical solution, the upper, middle and lower stirring blades can refine and stir different areas in the melt, avoiding blind spots in stirring and ensuring that each layer can be evenly stirred to make the aluminum alloy composition more uniform. The spiral shape of the first-level blade and the third-level blade can realize the shear stirring effect of the stirring blade, and the second-level blade can effectively break up the agglomeration of the modifier particles, ensuring the stirring effect with a simple structure and low production cost.

[0022] Furthermore, the second stirring blade on the second stirring shaft is staggered, and the scraper plate includes an extension plate and a vertical scraper. The extension plate is radially arranged along the second working chamber, and the vertical scraper is arranged perpendicular to the extension plate and fixed at the end of the extension plate away from the center of the second working chamber. The side of the vertical scraper away from the center of the second working chamber abuts against the inner wall of the second working chamber, and there is a smooth transition between the extension plate and the vertical scraper.

[0023] By adopting the above technical solution, the extension plate and the vertical scraper form an L-shaped structure, which can drive the extension plate and the vertical scraper to move synchronously when the stirring shaft rotates. The vertical scraper scrapes the inner wall of the furnace body, and the extension plate scrapes the bottom wall of the second working chamber, ensuring that the liquid in the second working chamber can move, so that the modificator added by the secondary metamorphism is evenly dispersed, and the melt on the side wall and the bottom is prevented from sticking.

[0024] In summary, the technical solution of the present utility model has the following advantages:

[0025] 1. The aluminum melt refining and modification treatment device provided by the utility model is provided with a first working room and a second working room to realize double modification treatment of the aluminum alloy melt, so that the aluminum alloy solution is modified more thoroughly, and a composite modification operation can be realized according to demand, thereby effectively improving the modification treatment effect and shortening the modification treatment time to a certain extent.

[0026] 2. The aluminum melt refining and modification treatment device provided by the utility model is provided with a slag scraper to perform slag removal operations on the aluminum melt, remove inclusions and other impurities to ensure the purity of the aluminum liquid, and effectively improve the quality of subsequent aluminum alloy production; an inert gas is introduced into the second working chamber to isolate the contact between the liquid surface of the aluminum alloy melt and the air, thereby reducing and avoiding hydrogen and oxide inclusions.

[0027] 3. The aluminum melt refining and modification treatment device provided by the utility model is provided with a first stirring member and a second stirring member to uniformly stir the aluminum alloy melt, thereby improving the dispersibility of the added modifier, thereby uniformizing the aluminum alloy composition and optimizing the subsequent aluminum alloy quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the overall structure of an aluminum melt refining and modification treatment device provided in one embodiment of the present utility model;

[0030] Figure 2 This is a cross-sectional view of an aluminum melt refining and modification treatment device provided in one embodiment of the present utility model;

[0031] Figure 3 A schematic diagram of a partial structure of a slag scraping structure provided in one embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of the explosion structure of the slag removal structure provided in one embodiment of the utility model.

[0033] Description of reference numerals:

[0034] 1. First working room; 11. Support furnace; 111. Sealing cover; 12. Melting furnace; 121. Filter plate; 13. Feed chamber; 131. Inlet and outlet; 2. Second working room; 21. Ventilation pipe; 211. Gas tank; 22. Feeding port; 221. Feeding cover; 3. Drain pipe; 4. Liquid outlet pipe; 5. Slag skimming structure; 51. Slag skimming lift; 52. Slag skimming drive; 521. Rotating motor; 522. Driving gear; 523. Driven gear; 524. Limiting ring; 5241. Connecting frame; 5242. Positioning ring; 53. Slag skimming parts; 531. Fixing Slag frame; 532, rotating slag frame; 5321, vertical plate; 5322, closing plate; 5323, slag skimming plate; 6, stirring structure; 61, first stirring member; 611, first stirring shaft; 612, first-level stirring blade; 6121, first-level blade; 613, second-level stirring blade; 6131, second-level blade; 61311, scattering hole; 614, third-level stirring blade; 6141, third-level blade; 62, second stirring member; 621, second stirring shaft; 622, second stirring blade; 623, scraper plate; 6231, extension plate; 6232, vertical scraper. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] An aluminum melt refining and modification treatment device, such as Figure 1 and Figure 2 As shown, it includes a first studio 1 and a second studio 2 arranged in parallel. The first studio 1 and the second studio 2 are both fixed on the frame. The bottom of the first studio 1 is higher than the bottom of the second studio 2. The first studio 1 and the second studio 2 are connected by a drainage pipe 3. A liquid outlet pipe 4 is provided at the bottom of the second studio 2 away from the first studio 1. It also includes a slag scraping structure 5 and a stirring structure 6. The slag scraping structure 5 includes a slag scraping lift 51, a slag scraping drive 52 and a slag scraping piece 53. The slag scraping lift 51 is arranged to slide laterally above the first working room 1. The slag scraping lift 51 is a cylinder and controls the lifting and lowering of the slag scraping drive 52 at the bottom. The slag scraping piece 53 is controlled by the slag scraping drive 52 and is arranged at the bottom of the slag scraping drive 52. The stirring structure 6 includes a first stirring piece 61 and a second stirring piece 62. The first stirring piece 61 is arranged at the bottom of the first working room 1, and the second stirring piece 62 is arranged at the bottom of the second working room 2. The two metamorphic treatments can improve the metamorphic treatment effect and can realize composite metamorphic operations according to needs. The amount of modifier used can be controlled by step-by-step feeding. Through the slag scraping operation, inclusions are removed to ensure the purity of the aluminum liquid, effectively improving the subsequent production quality of aluminum alloy castings.

[0037] like Figure 1 and Figure 2As shown, the first working chamber 1 includes a support furnace 11, a melting furnace 12, and a feed chamber 13. The feed chamber 13 is located above the support furnace 11 and is connected to the support furnace 11 at its bottom. The melting furnace 12 is snap-fitted into the support furnace 11. The support furnace 11 and the melting furnace 12 are arranged to create a heat storage area between the support furnace 11 and the melting furnace 12, reducing energy loss while extending the heat retention time of the deterioration operation and facilitating subsequent cleaning operations. An inlet and outlet 131 is provided on one sidewall of the feed chamber 13 to facilitate slag removal and deterioration feeding.

[0038] A sealing cover 111 is hingedly provided on the top of the support furnace 11. The hinge axis between the sealing cover 111 and the support furnace 11 is provided on the side of the top of the support furnace 11 away from the inlet and outlet 131, that is, on the right side of the top of the support furnace 11, so as not to affect the feeding into the furnace body. The sealing cover 111 is clamped with the melting furnace 12. The sealing cover 111 is provided to keep the molten liquid warm and isolate it from external interference, so as to ensure a stable environment during the metamorphic operation. A filter plate 121 is provided at the bottom of the melting furnace 12 corresponding to the drain pipe 3. The drain pipe 3 passes through the bottom of the melting furnace 12 and the support furnace 11 and is connected to the side wall of the second working room 2. A filter plate 121 is provided at the inlet of the drain pipe 3, so that when the aluminum alloy solution flows from the first working room 1 to the second working room 2, the filter plate 121 filters the impurities that are not removed by the slag scraper 53 in the first metamorphic treatment, thereby ensuring the purity of the molten liquid entering the second working room 2 and reducing the influence of impurities on the secondary metamorphic treatment.

[0039] A vent pipe 21 is connected to the top sidewall of the second working chamber 2, the other end of which is connected to a gas tank 211. This connection allows inert gas to enter the second working chamber 2, isolating the aluminum alloy melt from the air. This reduces and prevents hydrogen and oxidative inclusions, minimizes the effects of the gas, and ensures the effectiveness of the secondary modification treatment. A feeding port 22 is provided at the center of the top of the second working chamber 2, with a feeding cover 221 installed at the feeding port 22. This port allows for feeding of materials into the second working chamber 2 for the modification of the melt.

[0040] like Figure 2 、 Figure 3 and Figure 4As shown, the slag scraping drive 52 includes a rotating motor 521, a driving gear 522 and a driven gear 523. The driving gear 522 is sleeved on the output shaft of the rotating motor 521. The rotating motor 521 controls the rotation of the driving gear 522, and the driven gear 523 engages with the outer side of the driving gear 522. The slag scraping drive 52 also includes a limiting ring 524. The limiting ring 524 is coaxially arranged with the driving gear 522 and is arranged in the same horizontal plane as the driving gear 522. The diameter of the limiting ring 524 is larger than the diameter of the driving gear 522. The limiting ring 524 is fixed to the outer side of the rotating motor 521 through a connecting frame 5241. The inner side wall of the limiting ring 524 is provided with an engaging gear ring, which engages with the outer side of the driven gear 523. The top and bottom of the limiting ring 524 are both extended inward with a retaining ring 5242, and the driven gear 523 is clamped and arranged between the upper and lower retaining rings 5242. The rotating motor 521 rotates to drive the driving gear 522 to rotate, and the driven gear 523 is meshed with the driving gear 522 for transmission. Since the axis of the driven gear 523 itself is fixed to the rotating slag frame 532 and cannot rotate on its own, and the side of the driven gear 523 away from the driving gear 522 is clamped in the two retaining rings 5242 and meshed with the inner side of the limiting ring 524, the driven gear 523 takes the axis of the driving gear 522 as the rotating axis and rotates around the inner circumference of the limiting ring 524, thereby driving the rotating slag frame 532 at the bottom to rotate.

[0041] The scraper 53 includes a fixed scraper frame 531 and a rotating scraper frame 532. A driven gear 523 is fixed to the top center of the rotating scraper frame 532. The rotating scraper frame 532 rotates along with the driven gear 523 around the axis of the output shaft of the rotating motor 521. The fixed scraper frame 531 is arranged radially along the limiting ring 524 and is fixed to the bottom of the limiting ring 524. The rotating scraper frame 532 is also arranged radially along the limiting ring 524 and is sleeved on the output shaft of the rotating motor 521 near the center of the limiting ring 524. The fixed slag frame 531 and the rotating slag frame 532 have the same structure. Both the fixed slag frame 531 and the rotating slag frame 532 include a vertical plate 5321, a closing plate 5322 and a slag scraping plate 5323. The vertical plate 5321 is radially arranged along the limiting ring 524, the closing plate 5322 is arranged along the outer curvature of the limiting ring 524 and one end is fixed to the vertical plate 5321, the slag scraping plate 5323 is fan-shaped and has a slope on one side. The vertical plate 5321 and the closing plate 5322 are both arranged perpendicular to the upper surface of the slag scraping plate 5323, the vertical plate 5321 is fixedly connected to the side wall of one side of the slag scraping plate 5323, and the closing plate 5322 is arranged at the end of the slag scraping plate 5323 away from the center of the limiting ring 524. The rotating motor 521 cooperates with the limiting ring 524 to keep the fixed slag frame 531 stationary. The rotating slag frame 532 rotates along the inner circle of the limiting ring 524 for one circle, so that the fixed slag frame 531 and the rotating slag frame 532 are closed, thereby collecting surface inclusions into the formed closed space, which is convenient for subsequent transfer and removal of surface impurities.

[0042] like Figure 2 As shown, the diameter of the secondary stirring blade 613 is smaller than that of the primary stirring blade 612 and the tertiary stirring blade 614. The primary stirring blade 612 includes a plurality of primary blades 6121 arranged in a circumferential array on the first stirring shaft 611. The secondary stirring blade 613 includes a plurality of secondary blades 6131 arranged in a circumferential array on the first stirring shaft 611. The tertiary stirring blade 614 includes a plurality of tertiary blades 6141 arranged in a circumferential array on the first stirring shaft 611. The primary blades 6121 and the tertiary blades 6141 are both spirally shaped, and the secondary blades 6131 are provided with a plurality of scattering holes 61311. The three-stage stirring blades, upper, middle, and lower, can refine and stir different areas of the melt, avoiding blind spots and ensuring that each layer is evenly stirred, resulting in a more uniform composition of the aluminum alloy. The spiral shape of the primary blades 6121 and the tertiary blades 6141 can achieve the shear stirring effect of the stirring blades. The secondary blades 6131 can effectively disperse the agglomerated modifier particles, ensuring a good stirring effect, a simple structure, and low production costs.

[0043] The second stirring blade 622 on the second stirring shaft 621 is staggered, and the scraper plate 623 includes an extension plate 6231 and a vertical scraper 6232. The extension plate 6231 is arranged radially along the second working room 2, and the vertical scraper 6232 is arranged perpendicular to the extension plate 6231 and fixed at the end of the extension plate 6231 away from the center of the second working room 2. The side of the vertical scraper 6232 away from the center of the second working room 2 abuts against the inner wall of the second working room 2, and there is a smooth transition between the extension plate 6231 and the vertical scraper 6232. The extension plate 6231 and the vertical scraper 6232 form an L-shaped structure. When the stirring shaft rotates, the extension plate 6231 and the vertical scraper 6232 can be driven to move synchronously. The vertical scraper 6232 scrapes the inner wall of the furnace body, and the extension plate 6231 scrapes the inner bottom wall of the second working chamber 2, ensuring that the liquid in the second working chamber 2 can move, so that the modificator added for secondary modification is evenly dispersed, and the melt on the side walls and bottom is prevented from sticking.

[0044] The working principle and use method of the aluminum melt refining and modification treatment device are as follows: the aluminum melt is first modified in the first working room 1, the aluminum melt is fed through the inlet and outlet 131 and contained in the melting furnace 12, and then the modifier is added for the first time in the first working room 1, and the first stirring member 61 stirs and shears after the addition of the modifier to ensure that the modifier is dispersed. During the modification process, the sealing cover 111 can be closed and opened regularly to perform surface slag removal operation through the slag removal structure 5; when slag removal, the slag removal lifting 51 controls the slag removal drive 52 and the slag removal member 53 to descend to the surface of the aluminum melt, and then the belt is rotated by the rotating motor 521. The driven gear 523 rotates around the driving gear 522 in a circle, driving the rotating slag frame 532 to move, so that a closed space is formed between the rotating slag frame 532 and the fixed slag frame 531, and the surface slag is stuck in the closed space. Then the slag lifting and lowering 51 is lifted and slid out of the inlet and outlet 131 for slag cleaning; the aluminum alloy solution that has been metamorphosed once enters the second working room 2 for a second metamorphosing treatment. A second stirring member 62 is provided in the second working room 2 to make the metamorphosing treatment more uniform. The two metamorphosing treatments can ensure that the aluminum alloy solution is metamorphosed more fully. The two metamorphosing treatments can be carried out in steps to reduce the pollution of material waste.

[0045] The foregoing description shows and describes preferred embodiments of the present invention. As previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge of the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A device for refining and modifying aluminum melt, comprising a first studio (1) and a second studio (2) arranged in parallel, wherein the first studio (1) and the second studio (2) are both fixed on a frame, the bottom of the first studio (1) is higher than the bottom of the second studio (2), the first studio (1) and the second studio (2) are connected by a drain pipe (3), and a liquid outlet pipe (4) is provided at the bottom of the second studio (2) away from the first studio (1), characterized in that: Also includes: The slag scraping structure (5) is arranged at the top of the first working room (1) in a transverse sliding manner. The slag scraping structure (5) includes a slag scraping lift (51), a slag scraping drive (52) and a slag scraping piece (53). The slag scraping lift (51) is arranged above the first working room (1) in a transverse sliding manner. The slag scraping lift (51) is a cylinder and controls the lifting of the slag scraping drive (52) at the bottom. The slag scraping piece (53) is controlled by the slag scraping drive (52) and is arranged at the bottom of the slag scraping drive (52). The slag scraping drive (52) includes a rotating motor (521), a driving gear (521), and a rotating gear (521). 22) and a driven gear (523), the driving gear (522) is sleeved on the output shaft of the rotating motor (521), the rotating motor (521) controls the rotation of the driving gear (522), the driven gear (523) is meshed with the outer side of the driving gear (522), the slag scraping member (53) includes a fixed slag frame (531) and a rotating slag frame (532), the driven gear (523) is fixed at the top center of the rotating slag frame (532), and the rotating slag frame (532) rotates with the driven gear (523) around the axis of the output shaft of the rotating motor (521); A stirring structure (6), the stirring structure (6) comprising a first stirring member (61) and a second stirring member (62), the first stirring member (61) being arranged at the bottom of a first working room (1), the second stirring member (62) being arranged at the bottom of a second working room (2), the first stirring member (61) comprising a first stirring shaft (611), a first-stage stirring blade (612), a second-stage stirring blade (613) and a third-stage stirring blade (614), the first-stage stirring blade (612), the second-stage stirring blade (613) and the third-stage stirring blade (614) being arranged on the outer wall of the first stirring shaft (611) in sequence from top to bottom, the second stirring member (62) comprising a second stirring shaft (621), a plurality of second stirring blades (622) and a scraper plate (623), the second stirring blade (622) and the scraper plate (623) being fixed on the outer wall of the second stirring shaft (621).

2. The aluminum melt refining and modification treatment device according to claim 1, characterized in that: The first working chamber (1) comprises a supporting furnace (11), a melting furnace (12) and a feeding chamber (13); the feeding chamber (13) is arranged above the supporting furnace (11) and is in communication with the supporting furnace (11) at its bottom; an inlet and outlet (131) are provided on one side of the feeding chamber (13); and the melting furnace (12) is clamped and arranged in the supporting furnace (11).

3. The aluminum melt refining and modification treatment device according to claim 2, characterized in that: A sealing cover (111) is hingedly provided at the top of the support furnace (11); a hinge axis between the sealing cover (111) and the support furnace (11) is provided on a side of the top of the support furnace (11) away from the inlet and outlet (131); the sealing cover (111) is clamped with the melting furnace (12); a filter plate (121) is provided at the bottom of the melting furnace (12) corresponding to the drain pipe (3); the drain pipe (3) passes through the bottom of the melting furnace (12) and the support furnace (11) and is in communication with the side wall of the second working chamber (2).

4. The aluminum melt refining and modification treatment device according to claim 3, characterized in that: The top side wall of the second working room (2) is connected to a vent pipe (21), the other end of the vent pipe (21) is connected to a gas tank (211), a feeding port (22) is provided at the top center of the second working room (2), and a feeding cover plate (221) is provided at the feeding port (22).

5. The aluminum melt refining and modification treatment device according to claim 1, characterized in that: The scraping drive (52) further comprises a limiting ring (524), the limiting ring (524) being coaxially arranged with the driving gear (522) and being arranged in the same horizontal plane as the driving gear (522), the limiting ring (524) having a diameter larger than that of the driving gear (522), the limiting ring (524) being fixed to the outside of the rotating motor (521) via a connecting frame (5241), the inner side wall of the limiting ring (524) being provided with an engaging gear ring, the engaging gear ring being engaged with the driven gear (523), the top and bottom of the limiting ring (524) both extending inwardly with a retaining ring (5242), and the driven gear (523) being clamped and arranged between the two retaining rings (5242).

6. The aluminum melt refining and modification treatment device according to claim 5, characterized in that: The fixed slag frame (531) is arranged along the radial direction of the limiting ring (524) and is fixed to the bottom of the limiting ring (524). The rotating slag frame (532) is also arranged along the radial direction of the limiting ring (524) and is sleeved on the output shaft of the rotating motor (521) near the center of the limiting ring (524). The fixed slag frame (531) and the rotating slag frame (532) have the same structure. Both the fixed slag frame (531) and the rotating slag frame (532) include a vertical plate (5321), a closing plate (5322) and a slag scraping plate (5323). The vertical plate ( 5321) is radially arranged along the limiting ring (524), the closing plate (5322) is arranged along the outer curvature of the limiting ring (524) and one end is fixed to the vertical plate (5321), the scraping plate (5323) is fan-shaped, the vertical plate (5321) and the closing plate (5322) are both arranged perpendicular to the upper surface of the scraping plate (5323), the vertical plate (5321) is fixedly connected to the side wall of one side of the scraping plate (5323), and the closing plate (5322) is arranged at one end of the scraping plate (5323) away from the center of the limiting ring (524).

7. The aluminum melt refining and modification treatment device according to claim 1, characterized in that: The diameter of the secondary stirring blade (613) is smaller than the diameter of the primary stirring blade (612) and the diameter of the tertiary stirring blade (614); the primary stirring blade (612) comprises a plurality of primary blades (6121) arranged in a circumferential array on the first stirring shaft (611); the secondary stirring blade (613) comprises a plurality of secondary blades (6131) arranged in a circumferential array on the first stirring shaft (611); the tertiary stirring blade (614) comprises a plurality of tertiary blades (6141) arranged in a circumferential array on the first stirring shaft (611); the primary blade (6121) and the tertiary blade (6141) are both spiral-shaped; and the secondary blade (6131) is provided with a scattering hole (61311).

8. The aluminum melt refining and modification treatment device according to claim 1, characterized in that: The second stirring blade (622) on the second stirring shaft (621) is staggered, and the scraper plate (623) includes an extension plate (6231) and a vertical scraper plate (6232). The extension plate (6231) is radially arranged in the second working chamber (2), and the vertical scraper plate (6232) is perpendicular to the extension plate (6231) and fixed to the end of the extension plate (6231) away from the center of the second working chamber (2). The side of the vertical scraper plate (6232 away from the center of the second working chamber (2) abuts against the inner wall of the second working chamber (2), and a smooth transition is formed between the extension plate (6231) and the vertical scraper plate (6232).

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