Impurity removal device for secondary aluminum melt

Abstract

The invention relates to a secondary aluminum melt impurity removal device which comprises a smelting furnace, T-shaped rails, a moving box, a lifting block, a rotary slag salvaging mechanism, a rolling frame mechanism and a slag vibrating mechanism, the top of the smelting furnace is open, the T-shaped rails are arranged on the two sides of the smelting furnace, the moving box can slide along the rails, and the height of the lifting block is adjusted through a lifting air cylinder; the rotary slag salvaging mechanism is slidably connected to the upper portion of the smelting furnace through a transverse rail rod, a rolling frame mechanism is arranged in the rotary slag salvaging mechanism and rotates by driving a gear to be meshed with a gear ring through a servo motor B, the sections of a plurality of slag salvaging sieve plates on the surface of the rolling frame mechanism are in an L shape, and the slag salvaging sieve plates are used for salvaging impurities floating on the surface of molten aluminum and guiding the impurities into a slag containing disc on a mounting plate. Leaking holes are formed in the bottom of the slag containing disc to achieve backflow of the molten aluminum, the slag vibrating mechanism automatically vibrates and cleans the slag salvaging sieve plate through cooperation of a knocking rod and a spring so as to improve the cleaning efficiency, the whole device can accurately, automatically and efficiently remove impurities on the surface of the molten aluminum, the safety risk of manual operation is reduced, and the resource utilization rate is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of recycled aluminum production, and in particular relates to a recycled aluminum melt impurity removal device. Background Art

[0002] Recycled aluminum is aluminum metal that is recovered after a series of processing by recycling scrap aluminum products. Abandoned aluminum doors and windows, cans, auto parts, etc. are the main sources of recycled aluminum. The production process of recycled aluminum mainly includes: pretreatment (including classification, cleaning, crushing, etc.), smelting, refining, casting, etc. Among them, the smelting process is the key link in the production of recycled aluminum. However, due to the complex and diverse sources of raw materials for recycled aluminum, the aluminum liquid often contains a large amount of impurities, including aluminum oxide, chloride, etc. These impurities usually float on the surface of the aluminum liquid and need to be removed in time to ensure the purity and performance of the aluminum material.

[0003] In the traditional process, solvent is usually sprinkled into the aluminum liquid, and after stirring, the slag is removed using manual tools such as a colander or a slag rake. However, this method has many shortcomings:

[0004] 1. Limitations of manual operation: When a large melting furnace is used for production, the length of the manually used colander is limited and cannot cover the entire aluminum liquid surface, resulting in some impurities not being removed in time, affecting the quality of the aluminum liquid.

[0005] 2. Low degree of automation: The traditional manual slag removal method has high labor intensity and low production efficiency, and is not suitable for the needs of large-scale production in modern industry.

[0006] 3. Safety issues: The temperature of molten aluminum is high, and manual operation is prone to safety accidents such as burns, which increases the risk for workers.

[0007] In addition, due to the uneven distribution of impurities on the surface of the aluminum liquid, the existing impurity removal technology is difficult to accurately adjust the slag removal position and depth under wide liquid level conditions, and impurities are easily missed. At the same time, the traditional slag removal screen has the problem of impurities easily adhering, which requires frequent cleaning, further increasing the complexity of operation. More importantly, the existing devices often lack an effective aluminum liquid recovery mechanism, resulting in a large loss of aluminum liquid during the slag removal process, causing a waste of resources. Summary of the invention

[0008] The specific technical solutions of the present invention are as follows:

[0009] A device for removing impurities from recycled aluminum melt comprises a furnace, the top of which is open, and T-shaped tracks are arranged above both sides of the furnace, a movable box is slidably installed on the surface of the T-shaped track, a longitudinal track rod is vertically and symmetrically arranged on the top of the movable box, a lifting block is slidably installed between two longitudinal track rods on the same side, a lifting cylinder is fixed on the top of the longitudinal track rod, the output end of the lifting cylinder is fixed to the upper surface of the lifting block, a transverse track rod is transversely and symmetrically arranged between the two lifting blocks, the transverse track rod spans above the furnace, a servo motor A is fixed on the outside of one of the lifting blocks, a lead screw is arranged at the output end of the servo motor A, the lead screw is arranged parallel to the two transverse track rods, a rotating slag scooping mechanism is slidably installed on the surface of the two transverse track rods, the rotating slag scooping mechanism slides along the axis of the transverse track rod, a rolling frame mechanism is rotatably installed in the rotating slag scooping mechanism, a slag vibrating mechanism is arranged on one side of the rotating slag scooping mechanism, and the slag vibrating mechanism is arranged on the side above the rolling frame mechanism.

[0010] Furthermore, the rotating slag scooping mechanism includes a moving block sliding on the surfaces of two transverse track rods, the lead screw rotates through the moving block, connecting rods are provided on both sides of the bottom of the moving block, the connecting rods are in an isosceles triangle structure, and a mounting plate is provided between the bottoms of the connecting rods on both sides, and the mounting plate is placed parallel to the bottom of the moving block.

[0011] Furthermore, rotation limit grooves are symmetrically opened on both sides of the mounting plate, the inner wall of the rotation limit groove is arc-shaped, the center of the arc of the inner wall of the rotation limit groove coincides with the center line of the mounting plate, and the rolling frame mechanism includes two parallel ring bodies, and the two ring bodies are rotatably installed on the inner sides of the two rotation limit grooves respectively.

[0012] Furthermore, the mounting plate is horizontally placed at the center of the rolling frame mechanism, and a plurality of slag sieve plates are evenly arranged outwardly between the two moving blocks, and the cross-section of the slag sieve plates is L-shaped.

[0013] Furthermore, a gear ring is installed on the outer side of one of the ring bodies, a servo motor B is fixed to one side of the bottom of the moving block, a gear is provided at the output end of the servo motor B, the gear is placed above the gear ring, and the gear is meshed with the gear ring.

[0014] Furthermore, the slag vibrating mechanism includes a fixed column symmetrically placed on the surface of the moving block and a knocking rod symmetrically hinged on the surface of the moving block, the knocking rod rotation axis is placed above the fixed column, and the knocking rod is tangent to the rotating surface of the rolling frame mechanism.

[0015] Furthermore, a through slot is opened above the surface of the knocking rod, the fixing column passes through the through slot, an adjusting nut is screwed on the end of the fixing column, a spring is sleeved on the surface of the fixing column, and the spring is placed between the knocking rod and the adjusting nut.

[0016] Furthermore, a concave surface is opened in the center of the surface of the mounting plate, the center of the concave surface is hollowed out, a slag collecting pan is installed inside the concave surface, leakage holes are evenly opened at the bottom of the slag collecting pan, and positioning holes are symmetrically opened on the surface of the mounting plate, and two positioning holes are respectively placed on both sides of the concave surface.

[0017] Furthermore, ear plates are symmetrically arranged on both sides of the slag containing plate, a fixing bolt vertically penetrates the center of the ear plate, and the bottom of the fixing bolt is adapted to the positioning hole.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] First, the present invention realizes the height and position adjustment of the rotating slag scooping mechanism through the combination of T-shaped tracks, moving boxes and lifting blocks arranged on both sides of the furnace. The sliding design of the T-shaped track and the moving box enables the rotating slag scooping mechanism to move freely along the wide liquid level surface, and the lifting block realizes height adjustment under the drive of the lifting cylinder, ensuring that the slag scooping screen plate can accurately penetrate into the surface of the aluminum liquid to clean impurities, thereby effectively improving the coverage and efficiency of the slag scooping and solving the problem of limited operation of the traditional manual colander.

[0020] Secondly, by rotating the roller mechanism inside the slag scoop mechanism and the gear driven by the servo motor B

[0021] -Gear ring transmission structure, the present invention realizes the continuous rotation of the slag sieve plate. The slag sieve plate adopts an L-shaped structure design, which can efficiently remove impurities floating on the surface of the aluminum liquid; the impurities naturally fall into the slag tray when rotating to the top, and the leakage holes at the bottom of the slag tray can return a small amount of aluminum liquid to the furnace, thereby reducing the loss of aluminum liquid, improving resource utilization, and overcoming the serious waste of aluminum liquid in traditional processes.

[0022] In addition, the present invention realizes automatic vibration cleaning of the slag sieve plate by arranging a slag vibrating mechanism on the rotating slag scavenging mechanism and utilizing a combination of a knocking rod and a spring. The knocking rod rebounds quickly under the action of the spring to hit the slag sieve plate, shaking off the impurities attached to the surface of the sieve plate, causing the impurities to fall into the slag holding tray, thereby avoiding the need for manual cleaning, improving the cleaning efficiency, and solving the problem of incomplete impurity cleaning. At the same time, the automated vibration slag cleaning design reduces the intensity and danger of manual operation, and improves the safety of the device and the continuity of operation.

[0023] Through the fixed design of the ear plates and fixing bolts on both sides of the slag tray, the slag tray can be stably installed inside the concave surface to avoid falling off due to vibration or impact during operation. At the same time, the slag tray structure is easy to disassemble and replace, and the leakage hole design at the bottom of the slag tray effectively realizes the reflux of aluminum liquid, further reducing material waste and solving the problem of impurities and aluminum liquid being difficult to separate in traditional technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the melting furnace of the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotary slag scoop and rolling frame installation of the present invention;

[0028] Figure 5 For the present invention Figure 4 Schematic diagram of the left view structure;

[0029] Figure 6 It is a schematic diagram of the installation structure of the rotary slag scooping mechanism and the slag holding plate of the present invention;

[0030] Figure 7 It is a schematic diagram of the rolling frame structure of the present invention;

[0031] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of area A.

[0032] Among them, 1. furnace; 11. T-type track; 12. moving box; 13. longitudinal track rod; 14. lifting cylinder; 15. lifting block; 16. servo motor A; 17. transverse track rod; 18. lead screw;

[0033] 2. Rotating slag scooping mechanism; 21. Moving block; 22. Connecting rod; 23. Mounting plate; 24. Rotating limit groove; 25. Concave surface; 26. Servo motor B; 27. Gear; 28. Slag tray; 29. ​​Ear plate; 210. Fixing bolt; 211. Positioning hole;

[0034] 3. Rolling frame mechanism; 31. Ring body; 32. Slag sieve plate; 33. Gear ring;

[0035] 4. Slag vibrating mechanism; 41. Fixed column; 42. Adjusting nut; 43. Spring; 44. Knocking rod; 45. Through slot. DETAILED DESCRIPTION

[0036] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments.

[0037] Embodiment 1:

[0038] See also Figure 1-8, a device for removing impurities from recycled aluminum melt, comprising a furnace 1; the top of the furnace 1 is open, which is convenient for melting recycled aluminum; T-shaped rails 11 are arranged above both sides of the furnace 1, and the T-shaped rails 11 are guide rail structures fixed on both sides of the furnace 1, and a moving box 12 is slidably installed on the surface of the T-shaped rails 11, and the moving box 12 moves along the T-shaped rails 11 by sliding, so as to realize the lateral movement of the slag scooping device; longitudinal track rods 13 are vertically symmetrically arranged on the top of the moving box 12, and the longitudinal track rods 13 are used to support and guide the vertical movement of the lifting block 15; a lifting block 15 is slidably installed between the two longitudinal track rods 13 on the same side, and the lifting block 15 can slide up and down along the longitudinal track rods 13 to adjust the height of the device; a lifting cylinder 14 is fixed on the top of the longitudinal track rod 13, and the lifting cylinder 14 provides a power source for the lifting block 15, and the output end of the lifting cylinder 14 is fixed on the upper surface of the lifting block 15, through the lifting cylinder 14 The telescopic action adjusts the height of the lifting block 15; a transverse track rod 17 is symmetrically arranged between the two lifting blocks 15, and the transverse track rod 17 spans above the melting furnace 1 to support and guide the rotating slag scooping mechanism 2; a servo motor A16 is fixed on the outside of one of the lifting blocks 15, and a lead screw 18 is arranged at the output end of the servo motor A16, and the lead screw 18 is arranged in parallel between the two transverse track rods 17, and the lead screw 18 drives the sliding mechanism to move by rotation; a rotating slag scooping mechanism 2 is slidably installed on the surface of the two transverse track rods 17, and the rotating slag scooping mechanism 2 slides along the axis of the transverse track rod 17 to adapt to aluminum liquid levels of different widths; a rolling frame mechanism 3 is rotatably installed in the rotating slag scooping mechanism 2, and the rolling frame mechanism 3 completes the removal of impurities under the drive of the rotating slag scooping mechanism 2; a slag vibrating mechanism 4 is arranged on one side of the rotating slag scooping mechanism 2, and the slag vibrating mechanism 4 is placed on the upper side of the rolling frame mechanism 3 to clean impurities adhering to the slag scooping screen plate 32.

[0039] See also Figure 4-6 The rotating slag scooping mechanism 2 includes a moving block 21 sliding on the surface of two transverse track rods 17; the moving block 21 moves along the transverse track rod 17 through the sliding structure to adapt to the width of the aluminum liquid surface; the lead screw 18 rotates and penetrates the moving block 21, and the lead screw 18 is driven by the servo motor A16 to rotate and drive the moving block 21 to move; connecting rods 22 are arranged on both sides of the bottom of the moving block 21, and the connecting rods 22 are isosceles triangle structures. The design of the isosceles triangle structure ensures the overall mechanical stability; a mounting plate 23 is arranged between the bottoms of the connecting rods 22 on both sides, and the mounting plate 23 is placed parallel to the bottom of the moving block 21, and is used to support and install the rolling frame mechanism 3 and its related components.

[0040] See also Figure 5-7Rotation limit grooves 24 are symmetrically provided on both sides of the mounting plate 23; the inner wall of the rotation limit groove 24 is arc-shaped, and the arc-shaped design matches the rotation path of the rolling rack mechanism 3; the center of the arc of the inner wall of the rotation limit groove 24 coincides with the center line of the mounting plate 23, thereby ensuring the rotation stability of the rolling rack mechanism 3; the rolling rack mechanism 3 includes two parallel ring bodies 31, which are respectively rotatably mounted on the inner sides of the two rotation limit grooves 24, and the rotation limit grooves 24 limit the ring bodies 31, thereby ensuring that the rolling rack mechanism 3 can only perform rotational motion.

[0041] See also Figure 5-7 The mounting plate 23 is horizontally placed at the center of the rolling frame mechanism 3; a plurality of slag sieve plates 32 are evenly arranged outward between the two moving blocks 21, and the cross-section of the slag sieve plate 32 is L-shaped. The L-shaped design facilitates the scooping of impurities floating on the surface of the aluminum liquid and introducing them into the slag tray 28.

[0042] See also Figure 6-8 A gear ring 33 is installed on the outer side of one of the ring bodies 31, and the gear ring 33 is driven by meshing with the gear 27 at the output end of the servo motor B26; a servo motor B26 is fixed to one side of the bottom of the moving block 21, and the servo motor B26 provides power to drive the gear 27 to rotate; the gear 27 is placed above the gear ring 33, and the gear 27 is meshed with the gear ring 33, and the rotation of the gear 27 drives the ring body 31 and the roller mechanism 3 to rotate.

[0043] See also Figure 6-8 The slag vibrating mechanism 4 includes a fixed column 41 symmetrically placed on the surface of the moving block 21; the fixed column 41 is used to support and fix the rotating axis of the knocking rod 44; the slag vibrating mechanism 4 also includes a knocking rod 44 symmetrically hinged on the surface of the moving block 21, and the rotating axis of the knocking rod 44 is placed above the fixed column 41, and the knocking rod 44 is tangent to the rotating surface of the rolling frame mechanism 3, and the vibration cleaning of the slag screen plate 32 is achieved through the action of the knocking rod 44.

[0044] See also Figure 8 A through slot 45 is provided above the surface of the knocking rod 44, and the through slot 45 provides a guide for the sliding and adjustment of the knocking rod 44; the fixed column 41 passes through the through slot 45, and an adjusting nut 42 is screwed on the end of the fixed column 41, and the adjusting nut 42 is used to adjust the degree of compression of the spring 43 by the fixed column 41; a spring 43 is sleeved on the surface of the fixed column 41, and the spring 43 is placed between the knocking rod 44 and the adjusting nut 42, and the knocking rod 44 completes the rebound action through the elastic force of the spring 43.

[0045] See also Figure 6A concave surface 25 is provided at the center of the surface of the mounting plate 23, and the center of the concave surface 25 is hollowed out to accommodate a slag pan 28; a slag pan 28 is installed inside the concave surface 25, and leakage holes are evenly provided at the bottom of the slag pan 28, and the leakage holes are used for the aluminum liquid to flow back to the melting furnace 1; positioning holes 211 are symmetrically provided on the surface of the mounting plate 23, and the two positioning holes 211 are respectively disposed on both sides of the concave surface 25, and are used to fix the slag pan 28.

[0046] See also Figure 6 Ear plates 29 are symmetrically arranged on both sides of the slag tray 28 , and a fixing bolt 210 vertically penetrates the center of the ear plate 29 ; the bottom of the fixing bolt 210 is adapted to the positioning hole 211 , and the slag tray 28 is firmly fixed on the mounting plate 23 through the fixing bolt 210 .

[0047] Example 2: See Figure 1-8 This embodiment is based on the technical solution of adjusting the height and position of the rotating slag scooping mechanism 2 of the regenerated aluminum melt impurity removal device. T-shaped rails 11 are arranged on both sides of the furnace 1 of the regenerated aluminum melt impurity removal device, and the moving box 12 is slidably installed on the rails 11. The height and position of the rotating slag scooping mechanism 2 can be adjusted by the combination of the servo motor A16 and the lead screw 18. In the experiment, the servo motor model "SGMGH-09DCA61" and the lifting cylinder "CJ2B series" were used. Through the lifting and lowering adjustment of different heights (20cm, 25cm, 30cm, 35cm, 40cm), the effect of the adjustment of the slag scooping screen plate 32 on the impurity removal efficiency of the aluminum liquid surface was verified. The experimental data are shown in Table 1.

[0048] Table 1 Effect of slag screen plate height adjustment on impurity removal efficiency

[0049] Adjustable height (cm) Impurity removal efficiency (%) Aluminum liquid loss (kg) Residual impurities rate (%) 20 87 1.5 13 25 91 1.3 9 30 94 1.0 6 35 96 0.8 4 40 95 1.1 5

[0050] (Impurity removal efficiency: refers to the proportion of impurities in aluminum liquid removed by the device, calculated as: the mass of impurities removed divided by the total mass of original impurities, multiplied by 100%). As can be seen from Table 1, when the height is adjusted to between 30cm and 35cm, the impurity removal efficiency is the highest and the aluminum liquid loss is the lowest. The appropriate height can effectively improve the impurity removal effect. The combination of servo motor A16 and lead screw 18 enables the device to perform precise position adjustment on aluminum liquid surfaces of different widths, thereby expanding the coverage of slag removal and improving work efficiency.

[0051] Example 3: See Figure 4-6 This embodiment is described around the gear-gear ring transmission structure driven by the roller frame mechanism and the servo motor B26. The continuous rotation of the slag screen plate 32 is achieved through this structure. In the experiment, the servo motor B26 with model "MR-J4-70A" was used, the gear diameter was 50mm, the number of teeth of the gear ring was 200, and the gear-gear ring transmission ratio was 1:4. The experiment was carried out at different speeds (50rpm, 100rpm,

[0052] The experiment was carried out at 200 rpm, 150 rpm, 200 rpm, and 250 rpm to verify the effect of the rotation speed of the slag screen on the impurity removal efficiency and the loss of molten aluminum. The experimental data are shown in Table 2.

[0053] Table 2 Effect of the rotation speed of the slag screen plate on the impurity removal efficiency

[0054] Speed ​​(rpm) Impurity removal efficiency (%) Aluminum liquid loss (kg) Slag removal time (min) 50 82 1.8 20 100 88 1.5 18 150 92 1.2 15 200 95 1.0 12 250 93 1.3 10

[0055] As can be seen from Table 2, with the increase of rotation speed, the impurity removal efficiency gradually increases, but after exceeding 200rpm, the efficiency decreases and the aluminum liquid loss increases. The appropriate rotation speed can ensure that impurities are fully removed and reduce aluminum liquid loss.

[0056] Example 4: See Figure 6-8 , this embodiment is described in detail around the vibration cleaning function of the slag vibrating mechanism. The slag vibrating mechanism 4 of this device realizes the automatic vibration cleaning of the slag sieve plate 32 through the combination of the knocking rod 44 and the spring 43. In the experiment, springs with different stiffness (models are "K1=100N / m", "K2=150N / m", "K3=200N / m", "K4=250N / m", "K5=300N / m") were used to test the influence of different spring stiffness on the impurity cleaning efficiency and the impurities attached to the slag sieve plate. The experimental data are shown in Table 3.

[0057] Table 3 Effect of spring stiffness on impurity cleaning efficiency

[0058] Spring stiffness (N / m) Impurity removal efficiency (%) Impurity adhesion amount (g) Vibration frequency (Hz) 100 85 12 3 150 89 8 4 200 93 5 5 250 96 3 6 300 94 4 7

[0059] Impurity cleaning efficiency (%) (refers to the proportion of impurities attached to the slag screen plate removed by the slag vibration mechanism, calculated as follows: the mass of impurities removed divided by the total mass of the original attached impurities, multiplied by 100%)

[0060] It can be seen from Table 3 that when the spring stiffness is 250N / m, the impurity cleaning efficiency is the highest, the impurities attached to the slag screen plate are the least, and the vibration frequency is also relatively moderate, ensuring that the slag vibration mechanism does not damage the screen plate structure while cleaning the impurities.

[0061] Example 5: See Figure 6 This embodiment is based on the design of the slag tray 28 and its influence on the aluminum liquid recovery efficiency. The bottom of the slag tray 28 is evenly provided with leakage holes with a diameter of 5 mm for the reflux of aluminum liquid. Different numbers of leakage holes (5, 10, 15, 20, and 25) are used in the experiment to evaluate their influence on the aluminum liquid reflux efficiency and aluminum liquid loss. The experimental data are shown in Table 4.

[0062] Table 4 Effect of the number of leak holes on the reflux efficiency of aluminum liquid

[0063] Number of leak holes Aluminum liquid reflux rate (%) Aluminum liquid loss (kg) Number of slag removal (times) 5 70 1.8 10 10 80 1.5 9 15 87 1.2 8 20 92 1.0 7 25 90 1.1 7

[0064] Aluminum liquid reflux rate (%) (refers to the ratio of the amount of aluminum liquid that flows back into the furnace after filtering in the slag tray to the amount of aluminum liquid removed during the initial slag removal process, calculated as: the mass of the refluxed aluminum liquid divided by the mass of the initial aluminum liquid removed, multiplied by 100%). As can be seen from Table 4, when the number of leak holes is 20, the aluminum liquid reflux rate is the highest, the aluminum liquid loss is the lowest, and the number of slag removal is also reduced. The appropriate number of leak holes can effectively improve the recovery efficiency of aluminum liquid and reduce material waste.

[0065] Example 6: See Figure 6-8 , this embodiment describes in detail the fixing effect of the ear plate 29 and the fixing bolt 210. In this embodiment, the slag pan 28 is firmly mounted on the mounting plate 23 through the ear plate 29 and the fixing bolt 210. Fixing bolts of different materials (aluminum alloy, stainless steel, titanium alloy, carbon fiber composite material, high-strength plastic) are used in the experiment to test the stability of the slag pan under vibration conditions of different materials. The experimental data are shown in Table 5.

[0066] Table 5 Effect of fixing bolt material on the stability of slag tray

[0067] Material Type Slag tray displacement (mm) Vibration frequency (Hz) Service life (times) Aluminum Alloy 1.5 5 5000 Stainless steel 1.2 6 7000 Titanium Alloy 1.0 6 8000 Carbon fiber composites 0.8 7 10000 High-strength plastic 2.0 4 3000

[0068] It can be seen from Table 5 that the carbon fiber composite material and titanium alloy have the best fixing effect, the slag pan has the smallest displacement under vibration conditions and the longest service life, which can ensure the stability of the slag pan under high-frequency vibration and improve the overall reliability of the impurity removal device.

[0069] Working principle:

[0070] The recycled aluminum is placed inside the melting furnace 1. After the aluminum is melted by electricity, impurities float on the surface of the aluminum liquid. The moving boxes 12 on both sides can move along the T-track 11 to drive the rotating slag scooping mechanism 2 to move. The lifting cylinders 14 on both sides can control the height of the lifting block 15, and then control the height of the rotating slag scooping mechanism 2, so that the bottom of the rolling frame mechanism 3 is immersed in the aluminum liquid, but the mounting plate 23 is placed above the liquid level. The lateral position of the rotating slag scooping mechanism 2 is controlled by the servo motor A16 to adapt to the wider liquid level. When in use, the slag tray 28 is fixed inside the concave surface 25 through the cooperation of the fixing bolt 210 and the positioning hole 211 to keep it stable.

[0071] After the height adjustment is completed, the servo motor B26 is started to drive the rolling rack mechanism 3 to rotate through the meshing of the gear 27 and the gear ring 33. The cooperation of the rotating limit groove 24 and the ring body 31 can ensure that the rolling rack mechanism 3 can only perform rotational movement. During the rotation of the rolling rack mechanism 3, multiple slag sieve plates 32 on its surface enter the aluminum liquid in turn. The L-shaped structure of the slag sieve plate 32 can remove impurities floating on the surface of the aluminum liquid and move it upward. When it rotates to the upper side, the impurities inside the slag sieve plate 32 can fall into the slag pan 28 for centralized treatment. The slag pan 28 can be removed after a single work is completed and taken out through the gap between two adjacent slag sieve plates 32. The leakage hole at the bottom of the slag pan 28 allows a small amount of aluminum liquid removed to flow back into the furnace 1. During the rotation of the rolling rack mechanism 3, the rotating slag sieve mechanism 2 moves along the T-shaped track 11, and automatic slag removal can be performed at this time.

[0072] Since one end of the spring 43 is limited by the adjusting nut 42, the other end of the spring 43 always applies an inward force to the knocking rod 44, and the squeezing of the spring 43 can be adjusted by rotating the adjusting nut 42. During the rotation of the roller mechanism 3, a single slag scooping screen plate 32 can squeeze the knocking rod 44, causing the knocking rod 44 to rotate outward and squeeze the spring 43 to accumulate force. After a single slag scooping screen plate 32 rotates beyond the bottom of the knocking rod 44, due to the accumulated force of the spring 43, the knocking rod 44 will rebound quickly to a vertical state and hit the next slag scooping screen plate 32 to shake off impurities attached to the surface of the slag scooping screen plate 32, so that the impurities fall into the slag holding plate 28, so as to facilitate the next cycle of rotation slag scooping.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for removing impurities from a recycled aluminum melt, comprising a furnace (1), characterized in that: The top of the furnace (1) is open, and T-shaped rails (11) are arranged above both sides of the furnace (1). A moving box (12) is slidably mounted on the surface of the T-shaped rail (11), and a longitudinal rail rod (13) is vertically symmetrically arranged on the top of the moving box (12). A lifting block (15) is slidably mounted between two longitudinal rail rods (13) on the same side, and a lifting cylinder (14) is fixed on the top of the longitudinal rail rod (13). The output end of the lifting cylinder (14) is fixed on the upper surface of the lifting block (15). A transverse rail rod (17) is transversely symmetrically arranged between the two lifting blocks (15), and the transverse rail rod (17) spans Above the melting furnace (1), a servo motor A (16) is fixed on the outside of one of the lifting blocks (15), a lead screw (18) is provided at the output end of the servo motor A (16), the lead screw (18) is placed in parallel between the two transverse track bars (17), a rotating slag scooping mechanism (2) is slidably installed on the surface of the two transverse track bars (17), the rotating slag scooping mechanism (2) slides along the axis of the transverse track bars (17), a rolling frame mechanism (3) is rotatably installed in the rotating slag scooping mechanism (2), a slag vibrating mechanism (4) is provided on one side of the rotating slag scooping mechanism (2), and the slag vibrating mechanism (4) is placed on one side above the rolling frame mechanism (3).

2. The device for removing impurities from recycled aluminum melt according to claim 1, characterized in that: The rotary slag scooping mechanism (2) comprises a moving block (21) sliding on the surfaces of two transverse track rods (17); the lead screw (18) rotates and penetrates the moving block (21); connecting rods (22) are arranged on both sides of the bottom of the moving block (21); the connecting rods (22) are in an isosceles triangle structure; a mounting plate (23) is arranged between the bottoms of the connecting rods (22) on both sides; the mounting plate (23) is placed parallel to the bottom of the moving block (21).

3. The device for removing impurities from recycled aluminum melt according to claim 2, characterized in that: Rotation limit grooves (24) are symmetrically provided on both sides of the mounting plate (23); the inner wall of the rotation limit groove (24) is arc-shaped; the center of the arc of the inner wall of the rotation limit groove (24) coincides with the center line of the mounting plate (23); the rolling frame mechanism (3) comprises two parallel ring bodies (31); the two ring bodies (31) are rotatably mounted on the inner sides of the two rotation limit grooves (24), respectively.

4. The device for removing impurities from recycled aluminum melt according to claim 3, characterized in that: The mounting plate (23) is horizontally placed at the center of the rolling frame mechanism (3), and a plurality of slag scavenging screen plates (32) are evenly arranged outwardly between the two moving blocks (21), and the cross-section of the slag scavenging screen plates (32) is L-shaped.

5. The device for removing impurities from recycled aluminum melt according to claim 4, characterized in that: A gear ring (33) is installed on the outer side of one of the ring bodies (31), a servo motor B (26) is fixed on one side of the bottom of the moving block (21), a gear (27) is provided at the output end of the servo motor B (26), the gear (27) is placed above the gear ring (33), and the gear (27) is meshed with the gear ring (33).

6. The device for removing impurities from recycled aluminum melt according to claim 1, characterized in that: The slag vibrating mechanism (4) comprises a fixed column (41) symmetrically arranged on the surface of the moving block (21) and a knocking rod (44) symmetrically hinged on the surface of the moving block (21); the rotating axis of the knocking rod (44) is arranged above the fixed column (41); and the knocking rod (44) is tangent to the rotating surface of the rolling frame mechanism (3).

7. The device for removing impurities from recycled aluminum melt according to claim 6, characterized in that: A through slot (45) is provided above the surface of the knocking rod (44), the fixing column (41) passes through the through slot (45), an adjusting nut (42) is screwed on the end of the fixing column (41), a spring (43) is sleeved on the surface of the fixing column (41), and the spring (43) is placed between the knocking rod (44) and the adjusting nut (42).

8. The device for removing impurities from recycled aluminum melt according to claim 2, characterized in that: A concave surface (25) is provided at the center of the surface of the mounting plate (23), the center of the concave surface (25) is hollowed out, a slag tray (28) is installed inside the concave surface (25), leakage holes are evenly provided at the bottom of the slag tray (28), and positioning holes (211) are symmetrically provided on the surface of the mounting plate (23). The two positioning holes (211) are respectively disposed on both sides of the concave surface (25).

9. The device for removing impurities from recycled aluminum melt according to claim 8, characterized in that: Ear plates (29) are symmetrically arranged on both sides of the slag receiving plate (28), a fixing bolt (210) vertically penetrates the center of the ear plate (29), and the bottom of the fixing bolt (210) is matched with the positioning hole (211).

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