A molten aluminum cutoff device for a casting pit

Abstract

The utility model relates to aluminium alloy deep well casting technical field, especially a kind of molten aluminium cutting device for foundry well, including baffle, the support block of being set in the both sides of molten aluminium runner and adjusting assembly, at least two chutes are provided on support block, the number of baffle and the number of chute are same and the both sides of baffle are connected in chute respectively, adjusting assembly and baffle are connected, so that baffle can slide in chute along chute direction, the height of baffle close to foundry well is greater than the height of another baffle, and the cavity that can accommodate molten aluminium is enclosed between baffle and support block.In the utility model, the baffle of different height is controlled to lift in chute by adjusting assembly, and the main stream path of molten aluminium flowing to foundry well can be quickly blocked, even in extreme working condition that interlock control system is completely ineffective, fast response can be ensured, the path that molten aluminium contacts with cooling water in foundry well is fundamentally cut off, and explosion risk is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy deep well casting technology, and in particular to an aluminum liquid cutting device for casting wells. Background Technology

[0002] Deep well casting of aluminum alloys is a highly efficient and high-quality casting process widely used in the production of various high-performance aluminum alloy bars. This process involves injecting molten aluminum into a crystallizer within a casting well, and then gradually cooling and solidifying the molten aluminum through an outlet at the bottom of the crystallizer, thus achieving continuous casting. Compared to traditional casting processes, deep well casting offers advantages such as faster solidification speed, more uniform casting structure, and superior mechanical properties, making it suitable for industrial applications with high requirements for material performance.

[0003] However, deep-well casting also presents significant safety risks. The aluminum molten metal flow channel connects to the casting pan of the casting well. The molten aluminum enters the casting pan through the flow channel. Heat dissipation slots are located on the outside of the casting pan and connect to the casting well. Some systems only have high-level alarm sensors installed at the interface between the aluminum molten metal flow channel and the casting pan, lacking low-level monitoring capabilities. This results in the system being unable to fully detect abnormal fluctuations in the aluminum molten metal level and unable to quickly cut off the flow path and divert the molten aluminum to emergency facilities when leakage is detected. Molten aluminum can flow from the casting pan into the heat dissipation slots and then come into contact with the cooling water in the casting well, increasing the potential risk of an explosion caused by the contact between the molten aluminum and the cooling water.

[0004] To address these issues, the industry has attempted to install quick-shutdown valves, emergency discharge valves, and emergency pits in the casting system, and has introduced safety interlocking control systems. However, these improvements still have limitations, especially in extreme conditions such as system-wide power failure, collective sensor failure, or communication interruption. In such cases, the interlocking control system may completely lose its ability to control the flow of molten aluminum, leading to serious consequences. Therefore, there is an urgent need to develop an emergency control device that does not rely on external power or signal systems, capable of quickly stopping the flow of molten aluminum into the casting pan manually or mechanically when the interlocking system fails, thereby effectively improving the safety and reliability of the deep well casting process. Utility Model Content

[0005] In view of the technical problems existing in the background art, the utility model provides an aluminum liquid cutting device for casting wells to solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: A molten aluminum cutting device for a casting well includes a baffle plate, support blocks disposed on both sides of the molten aluminum flow channel, and an adjusting component. The support blocks are provided with at least two sliding grooves. The number of baffle plates is the same as the number of sliding grooves, and the two sides of the baffle plates are respectively connected to the sliding grooves. The adjusting component is connected to the baffle plates, so that the baffle plates can slide along the direction of the sliding grooves. The height of the baffle plate closer to the casting well is greater than the height of the other baffle plate. The baffle plates and the support blocks together form a chamber capable of containing molten aluminum.

[0007] Preferably, the support block is recessed with a first groove and a second groove, the second groove being located on the side near the casting well, and the support block being positioned opposite to the aluminum liquid flow channel.

[0008] Preferably, the support block and the aluminum liquid flow channel are connected by bolts.

[0009] Preferably, the shielding plate includes a first shielding plate and a second shielding plate, the first shielding plate is disposed in a first sliding groove, the second shielding plate is disposed in a second sliding groove, and the height of the second shielding plate is greater than the height of the first shielding plate.

[0010] Preferably, the adjustment assembly includes several rotating shafts and at least two supporting side plates, the supporting side plates being disposed on both sides of the aluminum liquid flow channel, the rotating shafts being rotatably disposed between the two supporting side plates, and the rotating shafts extending from one of the supporting side plates.

[0011] Preferably, the adjustment assembly further includes a locking element, which includes a locking outer ring and a locking inner ring. The locking outer ring is disposed on the support side plate and is disposed outside the rotating shaft and concentrically with the rotating shaft. The locking inner ring is detachably disposed between the locking outer ring and the rotating shaft. The inner wall of the locking outer ring is provided with a plurality of slots, and the outer side of the locking inner ring is provided with a plurality of blocks, which extend into the slots.

[0012] Preferably, a limiting block is provided protruding on the outer wall of the rotating shaft, and a plurality of limiting grooves are provided on the inner wall of the locking inner ring, with the limiting block extending into the limiting groove.

[0013] Preferably, the adjustment assembly also includes a rope wound around a rotating shaft located at the upper end of a baffle plate. The upper end of the baffle plate is provided with a lifting lug, and one end of the rope is connected to the lifting lug.

[0014] Preferably, a dredging channel is provided on one side of the aluminum liquid flow channel, and a dredging hole is provided through the aluminum liquid flow channel. The dredging hole is directly opposite the dredging channel, and a plug is detachably provided in the dredging hole. An aluminum liquid collection tank is provided at one end of the dredging channel.

[0015] This utility model has the following advantages and beneficial effects: Mechanical rapid cut-off, safe and reliable: By adjusting the components to control the rise and fall of baffles at different heights within the chute, the main flow path of molten aluminum to the casting well can be quickly blocked. This process is purely mechanically driven, without relying on external power or complex sensors. Even in extreme conditions where the interlocking control system completely fails, it ensures a rapid response, fundamentally cutting off the path of contact between the molten aluminum and the cooling water in the casting well, eliminating the risk of explosion. Attached Figure Description

[0016] Figure 1 This is a connection diagram of an aluminum liquid cutting device for casting wells proposed in this utility model; Figure 2 This is a schematic diagram of the working state of the baffle plate of the aluminum liquid cutting device for casting wells proposed in this utility model; Figure 3 This is a structural diagram of an aluminum liquid cutting device for casting wells proposed in this utility model; Figure 4 for Figure 2 A magnified view of a portion of the image; Figure 5 An exploded view of the adjusting component of an aluminum liquid cutting device for casting wells proposed in this utility model.

[0017] Reference numerals: 1-Aluminum liquid flow channel, 2-Supporting block, 21-First chute, 22-Second chute, 31-First baffle, 32-Second baffle, 33-Lifting lug, 41-Supporting side plate, 42-Rotating shaft, 421-Limiting block, 43-Rope, 44-Locking component, 441-Locking outer ring, 4411-Slot, 442-Locking inner ring, 4421-Slot, 4422-Limiting groove, 5-Unblocking channel, 51-Unblocking hole, 52-Block, 53-Aluminum liquid collection tank, 6-Casting well, 7-Heat dissipation slot. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] Example like Figures 1-5 As shown, an aluminum liquid cutting device for casting wells is mainly installed at the inlet end of the aluminum liquid flow channel 1 near the casting well 6. The device includes a support block 2, a baffle plate, and an adjustment component.

[0021] like Figures 1-4 As shown, there are two support blocks 2, made of high-temperature resistant cast iron or heat-resistant steel, which are symmetrically fixed to the two side walls of the aluminum liquid flow channel 1 by bolts. The inner side of each support block 2 (the side facing the center of the aluminum liquid flow channel 1) is recessed from top to bottom with a first groove 21 and a second groove 22. The second groove 22 is located closer to the casting well 6, allowing the aluminum liquid to flow normally and unaffected between the two support blocks 2 during normal operation.

[0022] The baffles are also made of high-temperature resistant material and include a first baffle 31 and a second baffle 32. The first baffle 31 is embedded in the first groove 21 of the two side support blocks 2, and the second baffle 32 is embedded in the second groove 22 of the two sides. The height of the second baffle 32 is significantly greater than the height of the first baffle 31. The bottoms of the two baffles can contact the bottom of the aluminum liquid flow channel 1, and their sides are tightly fitted with the sidewalls of the grooves of the support blocks 2, so that when both baffles are in the low position, they, together with the support blocks 2 and the corresponding sections of the aluminum liquid flow channel 1, form a sealed chamber that can temporarily contain the aluminum liquid.

[0023] The chamber formed by the supporting block 2 and the aluminum molten flow channel 1 serves as an emergency buffer volume. The height of the first baffle plate 31 is intentionally set slightly lower than the depth of the aluminum molten flow channel 1. When it is necessary to cut off the aluminum molten flow, the aluminum molten flow is blocked by the first baffle plate 31 in the aluminum molten flow channel 1, and its liquid level rises accordingly; once the liquid level exceeds the top of the first baffle plate 31, the aluminum molten flow will overflow into the buffer chamber in an orderly manner. This design effectively delays the time it takes for the aluminum molten surface to touch the edge of the aluminum molten flow channel 1, gaining valuable emergency response time for operators to complete the subsequent complete cutting operation, and effectively preventing aluminum molten flow into the heat dissipation slot 7.

[0024] Each baffle plate has a lifting lug 33 welded to its upper end. An adjustment assembly is used to control the raising and lowering of the baffle plate. The adjustment assembly includes two support side plates 41, two rotating shafts 42, ropes 43, and locking components 44. The support side plates 41 are fixed to the outside of the aluminum liquid flow channel 1 by bolts or welding. The two rotating shafts 42 are rotatably mounted between the two sets of support side plates 41, and one end of each rotating shaft 42 extends outward through the support side plate 41 for manual operation.

[0025] like Figures 1-5As shown, the locking element 44 is used to lock the rotating shaft 42 after the baffle plate is raised, preventing it from reversing. The locking element 44 includes a locking outer ring 441 fixed to the support side plate 41 and a detachable locking inner ring 442. The locking outer ring 441 is sleeved on the outside of the protruding end of the rotating shaft 42, and its inner circumferential wall is evenly provided with a plurality of slots 4411. The inner wall of the locking inner ring 442 is correspondingly machined with a plurality of limiting grooves 4422, and its outer circumferential wall is provided with a locking block 4421 that matches the shape of the slots 4411. On the corresponding outer wall section of the rotating shaft 42, a limiting block 421 is protruding. During assembly, the locking inner ring 442 is sleeved on the rotating shaft 42, so that the limiting grooves 4422 on its inner wall engage with the limiting blocks 421 on the rotating shaft 42. At this time, the locking block 4421 on the outer wall of the locking inner ring 442 is also aligned with the slots 4411 on the inner wall of the locking outer ring 441. Push the inner locking ring 442 into the outer locking ring 441, so that the locking block 4421 is fully embedded in the slot 4411, thus achieving circumferential locking of the rotating shaft 42. To unlock, simply pull out the inner locking ring 442.

[0026] The rope 43 is preferably a high-temperature resistant fiber rope, one end of which is securely tied to the lifting lug 33 of the baffle plate, and the other end is wound around the corresponding rotating shaft 42. Rotating the rotating shaft 42 can wind or release the rope 43, thereby controlling the raising or lowering of the baffle plate. The first baffle plate 31 and the second baffle plate 32 are independently controlled by different rotating shafts 42, enabling graded actions.

[0027] It should be further noted that the rope 43 is preferably made of high-temperature resistant fiber rope. This type of material not only has sufficient heat resistance to cope with the high-temperature environment around the molten aluminum, but more importantly, its strength characteristics allow the operator to quickly cut it with a special tool in extreme emergency situations (such as when the shaft 42 cannot rotate normally due to jamming or other reasons). Once the rope 43 is cut, the baffle plate, which loses its traction, will fall rapidly along the chute under the action of gravity, instantly blocking the flow path of the molten aluminum. This provides another direct, rapid, and reliable emergency response method for dealing with emergencies.

[0028] A dredging channel 5 is also provided on one side of the aluminum liquid flow channel 1. A dredging hole 51 is provided through the aluminum liquid flow channel 1, and the dredging channel 5 is connected to the bottom of the aluminum liquid flow channel 1 through the dredging hole 51. A removable plug 52 is plugged inside the dredging hole 51. The plug 52 can be made of high-temperature resistant material, such as a clay plug or a metal plug with a specific structure. An aluminum liquid collection tank 53 is provided below the outlet of the dredging channel 5. This dredging channel 5 constitutes a key emergency diversion channel. Its working scenario is: when aluminum liquid has accumulated in the aluminum liquid flow channel 1 outside the first baffle plate 31 (i.e., upstream direction) and there is a risk of the liquid level continuing to rise, the plug 52 can be quickly removed. At this time, the accumulated aluminum liquid will immediately flow into the dredging channel 5 through the dredging hole 51 under the action of gravity, and finally be safely discharged into the aluminum liquid collection tank 53. This design effectively prevents molten aluminum from accumulating excessively in the molten aluminum flow channel 1 and overflowing from both sides of the channel wall. It is another important passive safety barrier after the baffle plate blocks the main flow.

[0029] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A molten aluminum cutting device for casting wells, characterized in that: The device includes baffles, support blocks on both sides of the aluminum molten flow channel, and an adjustment assembly. The support blocks are provided with at least two sliding grooves. The number of baffles is the same as the number of sliding grooves, and the two sides of the baffles are respectively connected to the sliding grooves. The adjustment assembly is connected to the baffles so that the baffles can slide along the direction of the sliding grooves. The height of the baffle closer to the casting well is greater than the height of the other baffle. The baffles and the support blocks together form a chamber that can contain the aluminum molten flow.

2. The aluminum liquid cutting device for casting wells according to claim 1, characterized in that: The support block is recessed with a first groove and a second groove. The second groove is located on the side near the casting well. The support block is positioned opposite to the aluminum liquid flow channel.

3. The aluminum liquid cutting device for casting wells according to claim 1, characterized in that: The support block and the aluminum liquid flow channel are connected by bolts.

4. The aluminum liquid cutting device for casting wells according to claim 2, characterized in that: The shielding plate includes a first shielding plate and a second shielding plate. The first shielding plate is disposed in a first sliding groove, and the second shielding plate is disposed in a second sliding groove. The height of the second shielding plate is greater than the height of the first shielding plate.

5. The aluminum liquid cutting device for casting wells according to claim 1, characterized in that: The adjustment assembly includes several rotating shafts and at least two supporting side plates. The supporting side plates are disposed on both sides of the aluminum liquid flow channel. The rotating shafts are rotatably disposed between the two supporting side plates and extend from one of the supporting side plates.

6. The aluminum liquid cutting device for casting wells according to claim 5, characterized in that: The adjustment assembly also includes a locking component, which includes a locking outer ring and a locking inner ring. The locking outer ring is disposed on the support side plate and is disposed outside the rotating shaft and concentrically with the rotating shaft. The locking inner ring is detachably disposed between the locking outer ring and the rotating shaft. The inner wall of the locking outer ring is provided with several slots, and the outer side of the locking inner ring is provided with several blocks, which extend into the slots.

7. The aluminum liquid cutting device for casting wells according to claim 6, characterized in that: A limiting block is provided on the outer wall of the rotating shaft, and a plurality of limiting grooves are provided on the inner wall of the locking inner ring, with the limiting block extending into the limiting groove.

8. The aluminum liquid cutting device for casting wells according to claim 7, characterized in that: The adjustment assembly also includes a rope that is wound around a rotating shaft located at the upper end of a baffle plate. A lifting lug is provided at the upper end of the baffle plate, and one end of the rope is connected to the lifting lug.

9. The aluminum liquid cutting device for casting wells according to claim 1, characterized in that: A dredging channel is also provided on one side of the aluminum liquid flow channel. A dredging hole is provided through the aluminum liquid flow channel. The dredging hole is directly opposite the dredging channel. A plug is detachably provided in the dredging hole. An aluminum liquid collection tank is provided at one end of the dredging channel.

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