A high-quality aluminum alloy plate continuous casting device

Abstract

The present application relates to the technical field of plate continuous casting, in particular to a high-quality aluminum alloy plate continuous casting device, which comprises a distribution furnace body, a heat preservation partition plate is arranged at the top of the distribution furnace body, a reciprocating assembly and a storage cavity are symmetrically arranged in the heat preservation partition plate, a plurality of groups of feeding assemblies are uniformly arranged on the reciprocating assembly, and a protection assembly is arranged on the feeding assembly; a plurality of groups of feeding assemblies are uniformly arranged on the reciprocating assembly, the feeding assemblies are driven to reciprocate along the longitudinal direction of the heat preservation partition plate through the reciprocating assembly, and the feeding assemblies and the reciprocating assembly are driven by air through different pipelines of an air pump; meanwhile, the feeding assemblies realize powder spraying and self-rotation through the air pump; the feeding assembly design combining reciprocating motion and self-rotation realizes uniform coverage of the heat preservation powder on the surface of the molten liquid; the protection assembly is introduced to automatically open and close the powder spraying end, thereby effectively preventing damage of the high-temperature environment and dust to the nozzle and prolonging the service life.

Description

Technical Field

[0001] This invention relates to the field of continuous casting technology for sheet metal, and more specifically, to a continuous casting apparatus for high-quality aluminum alloy sheet metal. Background Technology

[0002] Continuous casting of aluminum alloy sheets is an efficient and low-cost manufacturing process that directly produces sheet and strip blanks by continuously injecting molten aluminum into a cooling and forming system.

[0003] When transferring molten liquid to a distribution furnace for subsequent continuous casting, a layer of insulating powder is often sprinkled on the surface of the distribution furnace, i.e., the surface of the molten liquid, after the transfer is complete. This is to ensure that the molten liquid remains within a certain operating temperature range during the subsequent continuous casting process. However, in actual production, the insulating powder is often sprinkled manually. This is problematic because: firstly, the distribution furnace is located at a dangerous and high temperature, making operation risky; secondly, direct powder application is uneven; and thirdly, even if mechanical spraying equipment is used, it is often directional, resulting in low spraying efficiency and lacking protective measures for the spray nozzle.

[0004] Based on this, the present invention discloses a continuous casting apparatus for high-quality aluminum alloy plates. Summary of the Invention

[0005] To address the issues raised in the background art regarding the need to spread insulating powder to maintain the working temperature of molten aluminum alloy after it is transferred to the distribution furnace during continuous casting, where manual operation suffers from safety problems and uneven powder distribution, while mechanical spraying devices generally suffer from uneven spraying, low efficiency, and lack of high-temperature protection measures for the nozzles, this invention provides a high-quality aluminum alloy sheet continuous casting device. This device includes a smelting equipment body, a distribution furnace body, and a continuous casting equipment body arranged sequentially from top to bottom. A heat-insulating baffle is installed at the top of the distribution furnace body, with a pouring port at its center. Reciprocating components and a storage cavity are symmetrically arranged on both sides of the heat-insulating baffle. Several sets of feeding components are evenly arranged on the reciprocating components. The feeding components are driven by the reciprocating components to reciprocate along the longitudinal direction of the heat-insulating baffle. Both the feeding components and the reciprocating components are driven by air power through different pipes of an air pump. Simultaneously, the feeding components achieve powder spraying and rotational movement through the air pump.

[0006] To address the issue of eliminating the need for manual addition of insulating powder after the molten metal has been transferred into the distribution furnace body;

[0007] This solution uses an air pump to spray powder onto the molten surface located below the insulation partition. Specifically, the air pump drives a reciprocating assembly to rotate, which in turn drives a feeding assembly to reciprocate. Then, through another pipe of the air pump, the insulation powder is sprayed onto the molten surface via the feeding assembly. Figure 4As can be seen from the arrows, the feeding component reciprocates while also rotating, and then, in conjunction with the matrix layout of the feeding component, achieves a more uniform spraying of the molten surface.

[0008] As a further improvement to this technical solution, the top of the storage cavity is provided with a feeding port for adding insulation powder and a first blower pipe connected to an air pump. The reciprocating assembly includes a rotating rod that drives the feeding assembly located on both sides of the center of the insulation partition to reciprocate. Both ends of the rotating rod are provided with drive fans that are driven to rotate by airflow through one of the air pump pipes. The insulation partition has symmetrically formed sliding cavities, and the rotating rod is rotatably connected to one of the sliding cavities. Drive cavities are formed at both ends of the rotating rod within the insulation partition, with the top of each drive cavity penetrating the surface of the insulation partition. The drive fan is located within the drive cavity. The center of the drive fan is located within the drive cavity. A second blower pipe is provided below, which is connected to the air pump. The jet end of the second blower pipe is directly below the center of the drive fan and is used to drive the drive fan to rotate. The reciprocating assembly also includes three sliders. The two ends of the rotating rod are symmetrically provided with reciprocating threaded areas. The middle area of ​​the rotating rod is a smooth area. Two sliders are threadedly connected to the reciprocating threaded areas. The slider located in the center area of ​​the rotating rod is rotatably connected to the rotating rod. The sliders located at both ends of the rotating rod are slidably connected to the slide cavity. The slider located in the center area of ​​the rotating rod is fixedly connected to the slide cavity. The feeding assembly is fixed to the bottom of the slider.

[0009] Based on this, since even though the existing equipment uses mechanical powder spraying, fixed-position powder spraying still has low efficiency and unevenness, this solution adopts a linear reciprocating motion of the feeding component plus a self-rotating powder spraying method to make the powder spraying on the surface of the molten liquid more uniform.

[0010] As a further improvement to this technical solution, the feeding assembly includes a rotating sleeve connected to the storage chamber via one of the pipes of an air pump. Several downward-sloping spiral spray pipes are connected around the rotating sleeve, causing the spiral spray pipes to rotate and spray material. The feeding assembly also includes a mounting block, the bottom of which is connected to the rotating sleeve, and the top of the rotating sleeve is rotatably connected to the mounting block. A fourth air blower is provided on the mounting block located in the central area of ​​the rotating rod, and the mounting block is connected to the storage chamber via the fourth air blower. The insulation partition is located between the reciprocating assembly and the storage chamber. A movable cavity is provided between the rotating sleeve and a connecting component is provided inside the movable cavity. The mounting blocks located at both ends of the rotating sleeve are connected to the storage cavity through the connecting component. A first connecting pipe is provided in the central region of the rotating sleeve. Several second connecting pipes are provided in a circumferential distribution inside the rotating sleeve. The second connecting pipes are connected to the spiral spray pipe. A plum blossom spray pipe is provided at the bottom of the rotating sleeve. The plum blossom spray pipe is connected to the first connecting pipe. The plum blossom spray pipe includes several spray pipes with an inclination angle smaller than that of the spiral spray pipe and a vertically downward spray pipe.

[0011] Based on this, since the mounting block reciprocates and is located in a high-temperature area, in order to adapt to the reciprocating motion of the mounting block while maintaining constant communication with the storage cavity and allowing the insulation powder in the storage cavity to be discharged into the mounting block, this invention adopts a ball-head rotation connection method.

[0012] As a further improvement to this technical solution, the connecting component includes a telescopic pipe connected to the storage cavity and a transfer pipe connected to the mounting block. A connecting pipe is symmetrically arranged along the transverse central axis of the insulation partition inside the movable cavity. Both ends of the connecting pipe are connected to the telescopic pipe and the transfer pipe, respectively. Ball-head pipes are fixed at the connection points of the telescopic pipe and the transfer pipe with the connecting pipe, and the telescopic pipe and the transfer pipe are connected to the connecting pipe through the ball-head pipes. Simultaneously, a material leakage port penetrating the bottom of the insulation partition is opened inside the insulation partition, and the material leakage port is located below the position of the ball-head pipe.

[0013] In another solution, since the traditional powder spraying pipe remains exposed after powder spraying, the high temperature environment, coupled with the dust on the surface of the molten metal, can easily cause blockage and damage to the spraying pipe, affecting its next use. Therefore, this solution adopts the measure of adding a protective component to the rotating sleeve to protect it. When the rotating sleeve is started, the protective component opens, allowing the rotating sleeve to reciprocate and rotate to spray powder. When the rotating sleeve returns to its initial position after completing powder spraying, the protective component closes to protect it.

[0014] As a further improvement to this technical solution, the protective component includes a protective cover that is arranged in half and fits the mounting block when closed. The protective cover is opened and closed by one of the pipes of the air pump to protect the spraying end of the feeding component. A control chamber is provided inside the insulation partition on one side of the mounting block. The top of the control chamber is connected to the outside through a sliding cavity and a driving cavity. Two meshing gears are symmetrically arranged inside the control chamber. A mounting rod is fixedly connected to the gear. The lower end of the mounting rod is fixedly connected to the protective cover. A wind deflector is fixedly provided on the top of one of the mounting rods. A third blower pipe is provided inside the control chamber. One end of the third blower pipe is connected to the air pump, and the other end of the third blower pipe is positioned directly opposite the wind deflector. In addition, the wind deflector has an L-shaped structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. This high-quality aluminum alloy sheet continuous casting device improves operational safety and powder distribution uniformity: By adopting an automated air pump drive system to replace the traditional manual application of insulating powder, the potential for dangerous operations in high-temperature and high-altitude environments is avoided. Simultaneously, the design of the feeding component, combining reciprocating motion and rotation, achieves uniform coverage of the insulating powder on the molten surface, solving the problems of poor safety and uneven powder distribution in manual operation, and improving the consistency and stability of product quality.

[0017] 2. This high-quality aluminum alloy sheet continuous casting device achieves enhanced spraying efficiency and equipment adaptability: The innovatively designed rotating sleeve, combined with the spiral spray pipe and the plum blossom spray pipe, enables multi-angle, full-coverage spraying without an additional power source, greatly improving spraying efficiency and uniformity. Furthermore, the ball-head connection structure ensures stable material supply to the feeding component during reciprocating motion, guaranteeing the feasibility of long-term continuous operation and overcoming the limitations of low spraying efficiency and insufficient adaptability of existing mechanical spraying devices.

[0018] 3. In this high-quality aluminum alloy sheet continuous casting device, the service life of the equipment and the reliability of the system are extended: A protective component is introduced to automatically open and close the spraying end, effectively preventing damage to the nozzles caused by high-temperature environments and dust, thus extending the service life. Synchronously optimized blower timing and mechanical motion rhythm control ensure the coordination of the start-up and stop phases of each component, further enhancing the reliability of the system and providing a more stable production process guarantee. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the distribution furnace body of the present invention;

[0021] Figure 3 This is a schematic diagram of the thermal insulation partition of the present invention;

[0022] Figure 4 This is a top cross-sectional view of the thermal insulation partition of the present invention;

[0023] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle;

[0024] Figure 6 for Figure 4 Enlarged view of the structure at point B;

[0025] Figure 7 for Figure 4 Enlarged view of the structure at point C;

[0026] Figure 8 This is a bottom view of the structure of the thermal insulation partition of the present invention;

[0027] Figure 9 for Figure 8 Enlarged view of the structure at point D;

[0028] Figure 10 This is a schematic diagram of the structure of the connecting component of the present invention;

[0029] Figure 11 This is a schematic diagram showing the state of the protective component of the present invention;

[0030] Figure 12 This is a schematic diagram of the feeding assembly of the present invention.

[0031] Figure 13 This is a schematic diagram of the structure of the rotating sleeve of the present invention;

[0032] Figure 14 This is a schematic diagram of the annular groove of the present invention.

[0033] The meanings of the labels in the diagram are as follows:

[0034] 1. Melting equipment body; 2. Distribution furnace body; 3. Insulation baffle; 4. Pour port; 5. Storage chamber; 6. Feed port; 7. Sliding cavity; 8. Moving cavity; 9. Drive cavity; 10. Control cavity; 11. Connecting component; 12. Feeding component; 13. Reciprocating component; 14. Protection component; 15. First blast pipe; 16. Second blast pipe; 17. Third blast pipe; 18. Fourth blast pipe; 19. Discharge port; 20. Receiving tank; 21. Continuous casting equipment body; 22. First guide groove; 23. Second guide groove; 24. Guide protrusion;

[0035] 111. Telescopic pipe; 112. Ball head pipe; 113. Connecting pipe; 114. Adapter pipe;

[0036] 121. Mounting block; 122. Rotating sleeve; 123. First connecting pipe; 124. Second connecting pipe; 125. Plum blossom spray pipe; 126. Spiral spray pipe;

[0037] 131. Rotating rod; 132. Driving fan; 133. Slider;

[0038] 141. Mounting rod; 142. Gear; 143. Protective cover; 144. Wind deflector. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the existing continuous casting process of aluminum alloys, after the molten liquid is transferred to the distribution furnace, it needs to be sprinkled with heat-insulating powder to maintain its working temperature. However, manual operation has problems such as poor safety and uneven powder distribution, while mechanical spraying devices generally have shortcomings such as uneven spraying, low efficiency, and lack of high-temperature protection measures for the nozzles.

[0041] Therefore, this invention provides a high-quality aluminum alloy sheet continuous casting apparatus, see [link to relevant documentation]. Figures 1-4 As shown, it includes a smelting equipment body 1, a distribution furnace body 2, and a continuous casting equipment body 21 arranged sequentially from top to bottom. After the aluminum material is smelted by the smelting equipment body 1, it is poured into the distribution furnace body 2 for distribution and temporary storage. Then, the molten liquid is gradually cooled and flowed out by the corresponding equipment in the distribution furnace body 2. Then, the continuous casting equipment body 21 and subsequent equipment realize the continuous casting of high-quality aluminum alloy plates. The top of the distribution furnace body 2 is provided with a heat insulation baffle 3. The center of the heat insulation baffle 3 is provided with a pouring port 4. The two sides of the heat insulation baffle 3 are symmetrically arranged with reciprocating components 13 and storage chambers 5. Several sets of feeding components 12 are evenly arranged on the reciprocating components 13. The feeding components 12 are driven by the reciprocating components 13 to move reciprocally along the longitudinal direction of the heat insulation baffle 3. The feeding components 12 and the reciprocating components 13 are driven by air power through different pipes of the air pump. At the same time, the feeding components 12 realize powder spraying and rotation movement through the air pump.

[0042] For details, see Figures 3-4 As shown, to address the issue of eliminating the need for manual addition of insulating powder after the molten metal has been transferred to the distribution furnace body 2, this invention employs a method driven by an air pump to spray powder onto the surface of the molten metal located below the insulating partition 3. Specifically, the air pump drives the reciprocating assembly 13 to rotate, which in turn drives the feeding assembly 12 to reciprocate. Then, the insulating powder is sprayed onto the surface of the molten metal through another pipe of the air pump via the feeding assembly 12. Therefore, through… Figure 4 As can be seen from the arrow, the feeding component 12 reciprocates while rotating, and then, in conjunction with the matrix layout of the feeding component 12, achieves a more uniform spraying of the molten surface.

[0043] Specifically, see Figures 3-5 and Figures 7-9As shown, in order to realize the reciprocating motion of the feeding component 12, the top of the storage cavity 5 is provided with a feeding port 6 for adding insulation powder and a first blower pipe 15 connected to the air pump. The reciprocating component 13 includes a rotating rod 131 that drives the feeding component 12 located on both sides of the center of the insulation partition 3 to reciprocate. The rotating rod 131 is provided with a drive fan 132 at both ends, which is driven to rotate by airflow through one of the pipes of the air pump. The insulation partition 3 is symmetrically provided with sliding cavities 7. The rotating rod 131 is rotatably connected to the sliding cavity 7. The insulation partition 3 is provided with drive cavities 9 at both ends of the rotating rod 131. The top of the drive cavity 9 penetrates the surface of the insulation partition 3. The drive fan 132 is provided in the drive cavity 9. The drive cavity 9 is provided below the center of the drive fan 132. The second blower pipe 16 is connected to the air pump. The jet end of the second blower pipe 16 is directly below the center of the drive fan 132 and is used to drive the drive fan 132 to rotate.

[0044] Secondly, the reciprocating assembly 13 also includes three sliders 133. The two ends of the rotating rod 131 are symmetrically provided with reciprocating threaded areas. The middle area of ​​the rotating rod 131 is a smooth area. Two sliders 133 are threadedly connected to the reciprocating threaded areas. The slider 133 located in the central area of ​​the rotating rod 131 is rotatably connected to the rotating rod 131. The sliders 133 located at both ends of the rotating rod 131 are slidably connected to the slide cavity 7. The slider 133 located in the central area of ​​the rotating rod 131 is fixedly connected to the slide cavity 7. The feeding assembly 12 is fixedly mounted on the bottom of the slider 133.

[0045] During operation, the air pump starts, and the airflow in the air pump blows the insulation powder located in the storage chamber 5 towards the feeding assembly 12 through the first blower pipe 15. The insulation powder is then sprayed through the feeding assembly 12. The other pipe of the air pump, namely the second blower pipe 16, passes through... Figure 5 It can be seen that the air blown out by the second blower pipe 16 will drive the drive fan 132 to rotate, which in turn will drive the rotating rod 131 to rotate. This will drive the sliders 133 at both ends of the rotating rod 131 to reciprocate through the reciprocating threaded areas at both ends of the rotating rod 131, thereby enabling the sliders 133 to drive the corresponding feeding component 12 to reciprocate.

[0046] It should be noted that the airflow ejected from the second blower pipe 16 will flow to the outside through the top of the drive chamber 9 and will not affect the spraying of insulation powder at the bottom of the insulation partition 3.

[0047] Further, see Figures 4-10 and Figure 12 and Figure 13As shown, even though existing equipment uses mechanical powder spraying, fixed-position powder spraying still has low efficiency and unevenness. Therefore, this invention uses a linear reciprocating motion of the feeding component 12 combined with a self-rotating powder spraying method to make the powder spraying on the surface of the molten liquid more uniform. Specifically, the feeding component 12 includes a rotating sleeve 122 connected to the storage chamber 5 through one of the pipes of the air pump. Several downward-sloping spiral spray pipes 126 are connected around the rotating sleeve 122, causing the spiral spray pipes 126 to rotate and spray. The feeding component 12 also includes a mounting block 121. The bottom of the mounting block 121 is connected to the rotating sleeve 122, and the top of the rotating sleeve 122 is rotatably connected to the mounting block 121. The mounting block 121 located in the central area of ​​the rotating rod 131 is provided with a fourth air pipe 18. The mounting block 121 is connected to the storage chamber 5 through the fourth air pipe 18.

[0048] Secondly, a movable cavity 8 is provided in the heat insulation partition 3 between the reciprocating component 13 and the storage cavity 5. A connecting component 11 is provided in the movable cavity 8. The mounting blocks 121 located at both ends of the rotating rod 131 are connected to the storage cavity 5 through the connecting component 11.

[0049] The rotating sleeve 122 has a first connecting pipe 123 in the central area, and a plurality of second connecting pipes 124 are circumferentially distributed inside the rotating sleeve 122. The second connecting pipes 124 are connected to the spiral spray pipe 126. The bottom of the rotating sleeve 122 is provided with a plum blossom spray pipe 125, which is connected to the first connecting pipe 123.

[0050] It should be added that the plum blossom spray pipe 125 includes several spray pipes with an inclination angle smaller than that of the spiral spray pipe 126, and a vertically downward spray pipe.

[0051] During operation, the first blower pipe 15 blows the insulation powder in the storage chamber 5 through the fourth blower pipe 18 and the connecting component 11 into the corresponding mounting blocks 121. The mounting block 121 located in the middle area of ​​the rotating rod 131 is fixed and does not move. The mounting blocks 121 at both ends of the rotating rod 131 reciprocate with the reciprocating motion of the slider 133, causing the corresponding mounting blocks 121 to also reciprocate. During the reciprocating motion, the connecting component 11 is always connected to the corresponding mounting block 121, ensuring that the insulation powder and airflow in the storage chamber 5 can enter the corresponding mounting block 121. After the airflow and insulation powder enter the mounting block 121, refer to... Figure 12 and Figure 13As shown, the airflow and insulating powder entering the corresponding plum blossom spray pipe 125 and spiral spray pipe 126 respectively through the first connecting pipe 123 and the second connecting pipe 124. The airflow and insulating powder entering the spiral spray pipe 126 are inclined. Therefore, through force decomposition, it can be seen that the tangential force of the spiral spray pipe 122 will push the rotating sleeve 122 to rotate, thus expanding the powder spraying range of the spiral spray pipe 126. The plum blossom spray pipe 125 also has several inclined pipes, but the inclination angle is smaller than that of the spiral spray pipe 126. This can compensate for the areas that the spiral spray pipe 126 cannot reach. Combined with the vertically downward spray pipe in the middle position, the entire area below the rotating sleeve 122 forms a gradually expanding circumferential spraying area in a scattered manner. This can ensure more uniform spraying and reduce spray dead zones. In addition, combined with the reciprocating motion of the rotating sleeve 122, a more uniform and efficient spraying method is achieved.

[0052] Furthermore, see Figures 4-6 and Figure 10 As shown, since the mounting block 121 reciprocates and is located in a high-temperature area, in order to ensure that the mounting block 121 remains in communication with the storage cavity 5 while reciprocating, allowing the insulation powder in the storage cavity 5 to be discharged into the mounting block 121, this invention adopts a ball-head rotating connection. Specifically, the connecting component 11 includes a telescopic tube 111 connected to the storage cavity 5 and a transition tube 114 connected to the mounting block 121. The movable cavity 8 is symmetrical along the transverse central axis of the insulation partition 3. A connecting pipe 113 is provided, with its two ends connected to a telescopic pipe 111 and a transition pipe 114, respectively. Ball-head pipes 112 are fixed at the connection points between the telescopic pipe 111 and the transition pipe 114 and the connecting pipe 113. The telescopic pipe 111 and the transition pipe 114 are connected to the connecting pipe 113 through the ball-head pipes 112. At the same time, a material leakage port 19 penetrating the bottom of the insulation partition 3 is provided inside the insulation partition 3. The material leakage port 19 is located below the position of the ball-head pipe 112.

[0053] During operation, both the telescopic tube 111 and the adapter tube 114 are connected to the connecting tube 113 through the ball head tube 112. This ensures that the connecting tube 113 can reciprocate with the mounting block 121 while maintaining a continuous connection. The telescopic tube 111 is designed with a telescopic sleeve to accommodate the swinging motion of the connecting tube 113. Since the two ends of the connecting tube 113 are connected through the ball head tube 112, there may be a small amount of insulation powder leakage. The leakage port 19 located at the connection point can allow the leaked insulation powder to leak back to the surface of the molten liquid.

[0054] For details, see Figure 8 , Figure 9 and Figures 10-12As shown, since the traditional powder spraying pipe remains exposed after powder spraying, it is prone to blockage and damage in the high-temperature environment, coupled with dust on the surface of the molten liquid, affecting the next use. Therefore, the present invention adopts the measure of adding a protective component 14 to the rotating sleeve 122 to protect it. That is, when the rotating sleeve 122 is started, the protective component 14 opens, allowing the rotating sleeve 122 to achieve reciprocating motion and rotation for powder spraying. When the rotating sleeve 122 returns to the initial position after completing powder spraying, the protective component 14 closes to protect it.

[0055] Specifically, the protective component 14 includes a protective cover 143 that is arranged in half and fits the mounting block 121 when closed. The protective cover 143 is opened and closed by one of the pipes of the air pump to protect the spraying end of the feeding component 12. A control cavity 10 is provided in the heat insulation partition 3 on one side of the mounting block 121. The top of the control cavity 10 is connected to the outside through a sliding cavity 7 and a driving cavity 9. Two meshing gears 142 are symmetrically arranged in the control cavity 10. A mounting rod 141 is fixedly connected to the gear 142. The lower end of the mounting rod 141 is fixedly connected to the protective cover 143. A wind deflector 144 is fixedly provided on the top of one of the mounting rods 141. A third blower pipe 17 is provided in the control cavity 10. One end of the third blower pipe 17 is connected to the air pump, and the other end of the third blower pipe 17 is positioned opposite the wind deflector 144. In addition, the wind deflector 144 has an L-shaped structure.

[0056] During operation, after the air pump starts, the third blower pipe 17 begins to blow air towards the baffle plate 144. Figure 11 As can be seen, the wind deflector 144 is pushed by a huge wind force, causing the mounting rod 141 to rotate around the fulcrum of the gear 142, thereby opening the protective cover 143 and releasing the rotating sleeve 122 and the corresponding spiral spray pipe 126 and plum blossom spray pipe 125; then the air pump continues to work, the powder spraying and driving continue, so the third blower pipe 17 also continues to work, keeping the protective cover 143 in the open state at all times, and the bottom of the heat insulation partition 3 is provided with a corresponding receiving groove 20 in the active range of the protective cover 143, so that the protective cover 143 will be located in the receiving groove 20 after it is opened;

[0057] It should be noted that, since the width of the control cavity 10 is very narrow and the control cavity 10 is connected to the drive cavity 9, the airflow blown out by the third blower 17 mainly flows to the outside of the upper surface of the insulation partition 3 through the drive cavity 9, so it has little impact on the powder spraying and temperature at the bottom of the insulation partition 3.

[0058] It should be added that, in the initial stage, the mounting block 121 is located at the outermost end of the reciprocating thread area of ​​the rotating rod 131, and a small annular groove is also provided at the outermost end of the reciprocating thread area at both ends of the rotating rod 131, away from the center area of ​​the rotating rod 131. See [link to documentation] for details. Figure 14 As shown, a first guide groove 22 and a second guide groove 23 are provided in the annular groove. The first guide groove 22 and the second guide groove 23 are respectively connected to the ends of the two thread grooves with different rotation directions in the reciprocating thread area of ​​the rotating rod 131. The first guide groove 22 is the direction in which the locking block in the slider 133 slides out, and the second guide groove 23 is the direction in which the locking block in the slider 133 slides into the reciprocating thread area. At the same time, a guide protrusion 24 is provided near the second guide groove 23, which can also guide the locking block in the slider 133 to slide into the reciprocating thread area.

[0059] Specifically, the annular groove causes a slight lag in the initial starting phase of the slider 133 before it enters the reciprocating thread region; for example... Figure 14 As can be seen, in the initial stage, the locking block in the slider 133 is located on the side of the annular groove away from the reciprocating thread area. In this way, in the initial stage, the locking block in the slider 133 will slip in this vicinity. The initial rotation speed is relatively large, and with the guidance of the guide protrusion 24, the locking block in the slider 133 enters the second guide groove 23 through the guide protrusion 24 and finally enters the reciprocating thread area. This period is what is referred to as the lag in this solution.

[0060] Of course, after the air pump stops, thanks to inertia and the timing of the air pump shutdown, the locking block inside the slider 133 enters the annular groove through the first guide groove 22. However, due to the very slow rotation speed at the end, relying solely on inertia, the locking block inside the slider 133 will enter the annular groove on the side away from the reciprocating thread area. Even if it comes into contact with and rubs against the guide protrusion 24, the rotation speed is too slow to bring the locking block inside the slider 133 back into the second guide groove 23. This means that the locking block slips in the annular groove, and thus the reciprocating motion stops. The slippage of the locking block inside the slider 133 after entering the annular groove through the first guide groove 22 provides a tolerance space for the mounting block 121 to return to its initial position in this scheme. In general, the advantages of this design are twofold: first, it ensures that the protective cover 143 opens before the mounting block 121 begins its reciprocating motion; second, when the mounting block 121 stops after completing one reciprocating cycle, it allows the mounting block 121 to accurately fall into its initial position. Combined with the fit between the protective cover 143 and the rotating sleeve 122, a tolerance space is provided for the mounting block 121 to return to its initial position.

[0061] Furthermore, the time required for the mounting block 121 to reciprocate is matched with the air pump control of the corresponding airflow blowing time. That is, when the mounting block 121 returns to the initial position after completing one reciprocating motion, the air pump stops in time. At the same time, with the help of the design of the annular groove, sufficient fault tolerance space is left for the mounting block 121 to reset to the initial position to offset the influence of inertia and other factors, ensuring that after the air pump stops, the protective cover 143 can cover the rotating sleeve 122.

[0062] In summary, this method effectively solves the problems of existing methods in the continuous casting process of aluminum alloys, where molten metal needs to be sprinkled with insulating powder after being transferred to the distribution furnace to maintain its working temperature. However, manual operation has problems such as poor safety and uneven powder distribution, while mechanical spraying devices generally have shortcomings such as uneven spraying, low efficiency, and lack of high-temperature protection measures for the nozzles.

[0063] Working principle:

[0064] After the molten metal is poured into the distribution furnace body 2 through the smelting equipment body 1, the air pump is started. The air pump works simultaneously through the first blower pipe 15, the second blower pipe 16, the third blower pipe 17, and the fourth blower pipe 18. First, the third blower pipe 17 blows the baffle plate 144, causing the protective cover 143 to open. The protective cover 143 enters the receiving tank 20 for temporary storage. The second blower pipe 16 blows the drive fan 132 to rotate. The first blower pipe 15 blows the heat-insulating powder and airflow in the storage chamber 5 through the connecting component 11 and the fourth blower pipe 18 towards the mounting block 121. Then, it drives the rotating sleeve 122 to rotate and reciprocate linearly, realizing multi-dimensional powder spraying. After completing one reciprocating cycle, the air pump stops, the mounting block 121 returns to the initial position, and the baffle plate 144 is not blown by the airflow. The protective cover 143 resets under the action of gravity, covering and protecting the rotating sleeve 122 and the corresponding spiral spray pipe 126 and plum blossom spray pipe 125.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-quality aluminum alloy plate continuous casting apparatus including a distribution furnace body (2), characterized by: The top of the distribution furnace body (2) is provided with a heat preservation partition (3), and the heat preservation partition (3) is symmetrically provided with a reciprocating assembly (13) and a storage cavity (5) on the two sides. The reciprocating assembly (13) is uniformly provided with a plurality of groups of feeding assemblies (12), and the feeding assembly (12) is provided with a protection assembly (14); The feeding assembly (12) comprises a rotating sleeve (122) in communication with the storage cavity (5) through one pipeline of the air pump, and a plurality of spiral material spraying pipes (126) are communicated around the rotating sleeve (122) and inclined downward, so that the spiral material spraying pipes (126) rotate and spray materials; The reciprocating assembly (13) comprises a rotating rod (131) for driving the feeding assembly (12) located on the two sides of the center of the heat preservation partition (3) to reciprocate, and the two ends of the rotating rod (131) are provided with driving fans (132) driven by air flow of one pipeline of the air pump to rotate; The protection assembly (14) comprises a protection cover (143) which is symmetrically arranged and matched with the mounting block (121) after being closed, and the protection cover (143) is driven by one pipeline of the air pump to open and close the protection cover (143) to protect the material spraying end of the feeding assembly (12); A control cavity (10) is formed on one side of the mounting block (121) in the heat preservation partition (3), and the top of the control cavity (10) is in communication with the outside through a sliding cavity (7) and a driving cavity (9); The control cavity (10) is symmetrically provided with two gears (142) which are engaged and rotate, the gears (142) are fixedly connected with mounting rods (141), the lower end of the mounting rod (141) is fixedly connected with the protection cover (143), one of the mounting rods (141) is provided with a wind deflector (144) at the top, a third air blowing pipe (17) is arranged in the control cavity (10), one end of the third air blowing pipe (17) is in communication with the air pump, and the other end of the third air blowing pipe (17) is arranged opposite to the wind deflector (144); The outermost end of the reciprocating threaded area of the rotating rod (131) is provided with a circular groove, and the circular groove is provided with a first guide groove (22) and a second guide groove (23), the first guide groove (22) and the second guide groove (23) are respectively connected with the ends of the two different rotation direction threaded grooves of the reciprocating threaded area of the rotating rod (131), and a guide protrusion (24) is arranged on one side of the second guide groove (23); The feeding assembly (12) is driven by the reciprocating assembly (13) to reciprocate along the longitudinal direction of the heat preservation partition (3), and the feeding assembly (12), the reciprocating assembly (13) and the protection assembly (14) are all driven by the air pump through different pipelines; The heat preservation partition (3) is symmetrically provided with a sliding cavity (7), the rotating rod (131) is rotatably connected in the sliding cavity (7), the heat preservation partition (3) is provided with a driving cavity (9) at the two ends of the rotating rod (131), the top end of the driving cavity (9) penetrates the surface of the heat preservation partition (3), and the driving fan (132) is arranged in the driving cavity (9); The second air blowing pipe (16) is communicated with the air pump, and the jet end of the second air blowing pipe (16) is opposite to the center below of the driving fan (132) and is used for driving the driving fan (132) to rotate.

2. The high-quality aluminum alloy sheet continuous casting apparatus according to claim 1, characterized by: The reciprocating assembly (13) further comprises three sliding blocks (133), two ends of the rotating rod (131) are symmetrically provided with reciprocating threaded areas, and a middle area of the rotating rod (131) is a smooth area, two sliding blocks (133) are threadedly connected with the reciprocating threaded areas, the sliding block (133) located in the center area of the rotating rod (131) is rotationally connected with the rotating rod (131), the sliding blocks (133) located at two ends of the rotating rod (131) are slidingly connected in the sliding cavity (7), the sliding block (133) located in the center area of the rotating rod (131) is fixedly connected in the sliding cavity (7), and the feeding assembly (12) is fixedly arranged at the bottom of the sliding block (133).

3. The high-quality aluminum alloy sheet continuous casting apparatus according to claim 2, characterized by: The feeding assembly (12) further comprises a mounting block (121), the bottom of the mounting block (121) is communicated with a rotating sleeve (122), the top of the rotating sleeve (122) is rotationally connected with the mounting block (121), the mounting block (121) located in the center area of the rotating rod (131) is provided with a fourth air blowing pipe (18), and the mounting block (121) is communicated with the storage cavity (5) through the fourth air blowing pipe (18). The movable cavity (8) is arranged between the reciprocating assembly (13) and the storage cavity (5) in the heat preservation partition plate (3), and the movable cavity (8) is provided with a communication assembly (11).

4. The high-quality aluminum alloy sheet continuous casting apparatus according to claim 3, characterized by: The melting equipment body (1), the distribution furnace body (2) and the continuous casting equipment body (21) are sequentially arranged from top to bottom, a pouring opening (4) is arranged in the center of the heat preservation partition plate (3), and the top of the storage cavity (5) is provided with a feeding opening (6) for adding heat preservation powder and a first air blowing pipe (15) communicated with the air pump.

5. The high-quality aluminum alloy sheet continuous casting apparatus according to claim 4, characterized by: The communication assembly (11) comprises a telescopic pipe (111) communicated with the storage cavity (5) and an adapter pipe (114) communicated with the mounting block (121), the connecting pipe (113) is symmetrically arranged along the transverse central axis of the heat preservation partition plate (3) in the movable cavity (8), the two ends of the connecting pipe (113) are connected with the telescopic pipe (111) and the adapter pipe (114) respectively, the positions, where the telescopic pipe (111) and the adapter pipe (114) are connected with the connecting pipe (113), are fixedly provided with ball head pipes (112), and the telescopic pipe (111) and the adapter pipe (114) are communicated with the connecting pipe (113) through the ball head pipes (112).

6. The high-quality aluminum alloy sheet continuous casting apparatus according to claim 5, characterized by: The heat preservation partition plate (3) is provided with a material leakage opening (19) penetrating through the bottom of the heat preservation partition plate (3), and the material leakage opening (19) is arranged below the position of the ball head pipe (112).

7. The high-quality aluminum alloy sheet continuous casting apparatus according to claim 3, characterized by: The first communication pipe (123) is arranged in the central region of the rotating sleeve (122), and a plurality of second communication pipes (124) are arranged in the rotating sleeve (122) in a circumferential direction, the second communication pipes (124) are communicated with the spiral material spraying pipe (126), and the rotating sleeve (122) is provided with the plum blossom material spraying pipe (125) at the bottom, the plum blossom material spraying pipe (125) is communicated with the first communication pipe (123); The plum blossom material spraying pipe (125) comprises a plurality of spraying pipes with an inclination angle smaller than that of the spiral material spraying pipe (126) and a vertical downward spraying pipe.

8. The high-quality aluminum alloy sheet continuous casting apparatus according to claim 1, characterized by: The wind baffle (144) is in an L-shaped structure.

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