Cooling device for casting blank

Abstract

The utility model relates to the technical field of cooling equipment, and discloses a continuous casting blank cooling device which comprises a base, supporting columns are fixedly connected to the four corners of the upper surface of the base, a transverse rod is fixedly connected to the ends, away from the base, of the two supporting columns located at one end of the base, and long rods are fixedly connected to the two ends of the transverse rod. Three cooling water tanks are fixedly connected to the upper surface of the base, spraying mechanisms are connected to one sides of the three cooling water tanks, the other ends of the spraying mechanisms are located above the cooling water tanks, and moving assemblies are connected to the adjacent sides of the two long rods; a casting blank disc is connected between the two moving assemblies. According to the continuous casting blank cooling device for the casting blank, the casting blank in the casting blank disc is subjected to graded cooling through the three cooling water tanks, the cooling amplitude of the casting blank is reduced, and therefore the situation that the casting blank is directly cooled through cold water, cracks are possibly generated due to sharp temperature drop of the casting blank is avoided, and the quality of the casting blank is improved.

Description

Technical Field

[0001] This utility model relates to the field of cooling equipment technology, specifically a cooling device for continuous casting billets. Background Technology

[0002] The billet cooling device is a crucial component in the continuous casting production process, directly affecting the billet's quality, internal microstructure, and subsequent processing performance. During continuous casting, the billet typically requires three cooling cycles after solidification to prevent hot-charging cracks, facilitating billet forming and quality control. The continuous casting process is essentially a solidification heat transfer process where high-temperature molten steel transforms into a solid state. Therefore, the solidification heat transfer process of the billet has a vital impact on its quality, including billet removal, deformation, shrinkage cavities, and internal cracks.

[0003] For example, patent announcement CN220178113U discloses a continuous casting billet cooling device. The billet cooling device includes a base, a water tank installed on the base, support frames on both sides of the water tank, and an installation frame movably installed on the support frames. Adjusting cylinders for driving the lifting and lowering of the installation frame are provided on both sides of the water tank. A mist collecting hood and an exhaust fan are installed on the installation frame. The mist collecting hood is connected to the exhaust fan. A spray assembly is provided between the mist collecting hood and the water tank. The spray assembly includes an upper spray pipe, a lower spray pipe, a water supply pump, a water supply riser, and upper and lower spray hoses. Through the cooperation of the exhaust fan and the mist collecting hood, the mist generated by the billet during spray cooling is collected, preventing the mist from spreading into the workshop and causing low visibility, affecting the work of the staff, and avoiding equipment safety hazards. At the same time, the lifting and lowering of the installation frame can be adjusted by adjusting the cylinders, thereby adjusting the distance between the upper and lower spray pipes to meet the cooling requirements of billets of different widths and ensure the cooling effect.

[0004] However, the cooling devices in the above-mentioned technologies still have the following problems:

[0005] Although the mist generated during the spray cooling of the billet can be collected to prevent the mist from spreading and affecting the visibility of the workshop, multiple cooling processes are required to avoid hot-fixing cracks in the billet. If room temperature cooling water is used directly during the first cooling, the billet may still crack during the rapid cooling process due to the low temperature of the cooling water, thus affecting the quality of the billet. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a continuous casting billet cooling device, such as a billet cooling device that uses high-temperature water for initial cooling of the billet, reducing the temperature drop during the initial cooling of the billet, thereby reducing the cracks that may occur during the initial cooling of the billet and further improving the quality of the cooled billet.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a continuous casting billet cooling device, comprising a base, with support columns fixedly connected to the four corners of the upper surface of the base, and a crossbar fixedly connected to the end of one of the two support columns located at one end of the base away from the base, with long rods fixedly connected to both ends of the crossbar, and the other ends of the two long rods respectively fixedly connected to the two ends of another crossbar, three cooling water tanks fixedly connected to the upper surface of the base, the three cooling water tanks being equidistantly arranged, and a water pump connecting each adjacent pair of cooling water tanks, a spray mechanism connected to one side of each of the three cooling water tanks, the other end of the spray mechanism being located above the cooling water tank, a movable component connected to the adjacent side of each of the two long rods, and a billet tray connected between the two movable components, with several drainage holes penetrating through the bottom of the billet tray, the billet tray being located above the three cooling water tanks.

[0008] Furthermore, a water receiving tray is fixedly connected between two adjacent cooling water tanks. The water receiving tray is located on the top of the cooling water tank, and both sides of the water receiving tray are connected to the two adjacent cooling water tanks respectively.

[0009] Furthermore, the spraying mechanism includes a spray head, a water pipe, and a spray water pump. One end of the water pipe is connected to one side of the bottom of the cooling water tank, and the other end is fixedly connected to and connected to the spray head 9. The spray head is located directly above the cooling water tank. The output end of the spray water pump is fixedly connected to and connected to the end of the water pipe away from the spray head. The outer shell of the spray water pump is fixedly connected to the base.

[0010] Furthermore, support plates are fixedly connected to both sides of the spray head, and the two support plates are respectively fixedly connected to the side of the two long rods away from the base.

[0011] Furthermore, a connecting pipe head is fixedly connected and communicated with the side wall of the cooling water tank near the base, and the other end of the connecting pipe head is slidably connected to the inner wall of the water pipe near the spray pump.

[0012] Furthermore, the moving component includes a lead screw, an internally threaded tube, and a connecting plate. The connecting plate is fixedly connected to one side of the casting plate, and the internally threaded tube is fixedly connected to the end of the connecting plate away from the casting plate. One end of the lead screw is rotatably connected to one of the crossbars, and the other end passes through the internally threaded tube and the other crossbar in sequence, and is connected to a driving component. The other end of the driving component is connected to another lead screw. The lead screw is threadedly connected to the internally threaded tube, and the lead screw is rotatably connected to both crossbars.

[0013] Furthermore, the drive assembly includes a drive motor, a synchronous belt, and two pulleys. The two pulleys are respectively fixedly connected to one end of the two lead screws passing through the crossbar. The synchronous belt is fitted over the two pulleys and meshes with them. The output end of the drive motor is fixedly connected to the side of one of the pulleys away from the lead screw. The housing of the drive motor is fixedly connected to the adjacent crossbar via a mounting base. The drive motor includes a drive motor, a transmission belt, and two I-beams. The two I-beams are respectively fixedly connected to one end of the two lead screws passing through the crossbar. The transmission belt is fitted over the two I-beams. The output end of the drive motor is fixedly connected to the side of one of the I-beams away from the lead screw. The housing of the drive motor is fixedly connected to the adjacent crossbar via a mounting base.

[0014] Furthermore, a support groove is provided on the side of the long rod near the connecting plate, and several pulleys are fixedly connected to the side of the connecting plate near the support groove. The pulleys are all located in the support groove and are slidably connected to the inner wall of the support groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This type of continuous casting billet cooling device uses three cooling water tanks to cool the billet in the casting pan in stages, reducing the cooling range of the billet and thus avoiding the use of cold water for direct cooling, which may cause the billet to crack due to a rapid drop in temperature, thereby improving the quality of the billet. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall appearance and connection structure of this utility model;

[0018] Figure 2 Based on Figure 1 Exploded view of the connection structure;

[0019] Figure 3 Based on Figure 2 Exploded view of part of the connection structure;

[0020] Figure 4 This utility model is based on Figure 3 A schematic diagram of the cooling water tank connection structure from another angle;

[0021] Figure 5 This is a schematic diagram of the overall appearance and connection structure of the spraying mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure of the drive component of this utility model;

[0023] Figure 7 Based on Figure 3 A schematic diagram of the connection structure of the casting plate at another angle.

[0024] In the diagram: 1. Base; 2. Support column; 3. Crossbar; 4. Long rod; 5. Cooling water tank; 6. Water pump; 7. Casting tray; 8. Water receiving tray; 9. Spray head; 10. Water pipe; 11. Spray water pump; 12. Support plate; 13. Connecting pipe end; 14. Lead screw; 15. Internally threaded pipe; 16. Connecting plate; 17. Drive motor; 18. Transmission timing belt; 19. I-shaped pulley; 20. Pulley; 401. Support groove; 701. Drain hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1 - Figure 7 A continuous casting billet cooling device includes a base 1. Support columns 2 are fixedly connected to the four corners of the upper surface of the base 1. A crossbar 3 is fixedly connected to the end of two support columns 2 located at one end of the base 1 away from the base 1. Long rods 4 are fixedly connected to both ends of the crossbar 3. The other ends of the two long rods 4 are respectively fixedly connected to the two ends of another crossbar 3. Three cooling water tanks 5 are fixedly connected to the upper surface of the base 1. The three cooling water tanks 5 are equidistantly arranged. A water pump 6 is connected between each two adjacent cooling water tanks 5. A spray mechanism is connected to one side of each of the three cooling water tanks 5. The other end of the spray mechanism is located above the cooling water tank 5. A movable component is connected to the adjacent side of each of the two long rods 4. A billet tray 7 is connected between the two movable components. Several drainage holes 701 are opened through the bottom of the billet tray 7. The billet tray 7 is located above the three cooling water tanks 5.

[0027] like Figure 1 - Figure 7 As shown, the continuous casting billet cooling device of this utility model is structurally similar to existing continuous casting billet cooling devices, such as the continuous casting billet cooling device disclosed in patent announcement number CN220178113U. The main improvement of this utility model is that it can use hot water for preliminary cooling of the billet, avoiding cracks caused by rapid cooling of the billet and improving the quality of the billet. Figures 1 to 7As shown, in the continuous casting billet cooling device of this utility model, cooling water of different temperatures is sequentially injected into three cooling water tanks 5. The billet is placed in the billet tray 7, and the billet tray 7 is moved from one end to the other by a moving component. First, the hottest cooling water is used, and hot water is sprayed onto the billet tray 7 through a spray component to perform the first cooling of the billet in the billet tray 7. Using hot water for preliminary cooling can reduce the cooling range of the billet, thereby reducing the possibility of cracks caused by cooling. Then, the billet tray 7 moves to the top of the middle cooling water tank 5 and uses slightly cooler cooling water for further cooling. After completion, the next stage of cooling water tank 5 provides final cooling, thus completing the staged cooling of the casting billet. This avoids cracks that may occur due to rapid cooling of the casting billet and improves the quality of the casting billet. The water pump 6 can transport the cooling water that has been heated after the cooling operation in the next stage cooling water tank 5 to the hotter cooling water tank 5 in the previous stage. This allows hot water to be supplied when the high-temperature cooling water in the hotter cooling water tank 5 decreases. At the same time, after the hot water supply is completed, cold water can be added to the last cooling water tank 5. The cooling operation gradually heats up the cold water, which is then supplied to the front cooling water tank 5, reducing the hot water supply and improving energy utilization.

[0028] like Figure 1 - Figure 4 As shown, a water receiving tray 8 is fixedly connected between two adjacent cooling water tanks 5. The water receiving tray 8 is located on top of the cooling water tank 5, and its two sides are connected to the two adjacent cooling water tanks 5 respectively. When the casting tray 7 moves from above one cooling water tank 5 to above the next cooling water tank 5, some cooling water will still remain in the casting tray 7. During the movement, the cooling water in the casting tray 7 will drip into the water receiving tray 8 and flow into the cooling water tank 5 from both sides, thereby preventing the cooling water from dripping onto the base 1 and causing contamination.

[0029] like Figure 1 - Figure 5 As shown, the spraying mechanism includes a spray head 9, a water pipe 10, and a spray water pump 11. One end of the water pipe 10 is connected to one side of the bottom of the cooling water tank 5, and the other end is fixedly connected to and connected to the spray head 9. The spray head 9 is located directly above the cooling water tank 5. The output end of the spray water pump 11 is fixedly connected to and connected to the end of the water pipe 10 away from the spray head 9. The outer shell of the spray water pump 11 is fixedly connected to the base 1. During the cooling operation, the spray water pump 11 draws cooling water from the cooling water tank 5 into the water pipe 10, and then guides it into the spray head 9. Finally, the spray head 9 sprays the cooling water onto the casting tray 7, thereby cooling the casting placed in the casting tray 7. The spray head 9 is similar to a household shower head.

[0030] like Figure 1 - Figure 5As shown, support plates 12 are fixedly connected to both sides of the spray head 9. The two support plates 12 are respectively fixedly connected to the side of the two long rods 4 away from the base 1. The spray head 9 only needs to spray and cool the casting tray 7, so the size of the spray head 9 is similar to that of the casting tray 7. The support plates 12 on both sides can fix the spray head 9 between the long rods 4 on both sides, providing support for the spray head 9 and preventing shaking during spraying.

[0031] like Figure 2 - Figure 4 As shown, a connecting pipe head 13 is fixedly connected and connected to the side wall of the cooling water tank 5 near the base 1. The other end of the connecting pipe head 13 is slidably connected to the inner wall of the water pipe 10 near the spray water pump 11. The connecting pipe head 13 facilitates the connection and installation of the water pipe 10 and the cooling water tank 5, and makes it easy to disassemble and replace the water pipe 10 when it becomes blocked.

[0032] like Figure 1 - Figure 7 As shown, the moving assembly includes a lead screw 14, an internally threaded tube 15, and a connecting plate 16. The connecting plate 16 is fixedly connected to one side of the casting plate 7. The internally threaded tube 15 is fixedly connected to the end of the connecting plate 16 away from the casting plate 7. One end of the lead screw 14 is rotatably connected to one of the crossbars 3, and the other end passes through the internally threaded tube 15 and the other crossbar 3 in sequence, and is connected to a driving assembly. The other end of the driving assembly is connected to another lead screw 14. The lead screw 14 is threadedly connected to the internally threaded tube 15, and the lead screw 14 is rotatably connected to both crossbars 3. Through the driving assembly, the two lead screws 14 are rotated, causing the two internally threaded tubes 15 to move on the two lead screws 14, which in turn causes the connecting plate 16 and the casting plate 7 to move laterally between the two lead screws 14, realizing moving cooling on the three cooling water tanks 5.

[0033] like Figure 1 - Figure 7As shown, the drive assembly includes a drive motor 17, a synchronous belt 18, and two pulleys 19. The two pulleys 19 are fixedly connected to one end of each of the two lead screws 14 that pass through the crossbar 3. The synchronous belt 18 is fitted over the two pulleys 19 and meshes with them. The output end of the drive motor 17 is fixedly connected to the side of one of the pulleys 19 away from the lead screw 14. The housing of the drive motor 17 is fixedly connected to the adjacent crossbar 3 via a mounting base. The drive motor 17 is started, which drives the I-shaped pulley 19 to rotate, thereby driving the lead screw 14 fixed to it to rotate. At the same time, through the meshing of the pulley 19 and the synchronous belt 18, the transmission synchronous belt 18 is driven to rotate and move synchronously. Then, through the meshing of the teeth on the inner side of the synchronous belt 18 with another pulley 19, the other I-shaped pulley 19 is driven to rotate synchronously with the lead screw 14, thus completing the synchronous rotation of the two lead screws 14. This ensures that the casting disc 7 can move stably on the two lead screws 14. The synchronous belt 18 is a toothed belt with teeth on the inner side, and the pulley 19 is a gear with teeth on the outer side. Thus, through the meshing connection, the synchronous belt 18 can drive the two pulleys 19 to rotate synchronously, ensuring that both ends of the casting disc 7 can move stably on the two lead screws 14.

[0034] like Figure 1 - Figure 7 As shown, a support groove 401 is provided on the side of the long rod 4 near the connecting plate 16. Several pulleys 20 are fixedly connected to the side of the connecting plate 16 near the support groove 401. The pulleys 20 are all located in the support groove 401 and are slidably connected to the inner wall of the support groove 401. Through the connection between the pulleys 20 and the support groove 401, the two sides of the casting plate 7 are supported by the two long rods 4, which prevents the casting plate 7 from being too heavy after the casting blank is placed in, thus avoiding bending the lead screw 14 and ensuring that the lead screw 14 can smoothly drive the casting plate 7 to move.

[0035] Although embodiments of the present 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 present invention.

Claims

1. A continuous casting billet cooling device for a billet, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected with support columns (2), two support columns (2) at one end of the base (1) are fixedly connected with cross bars (3) away from the base (1), the two ends of the cross bars (3) are fixedly connected with long rods (4), the other ends of the two long rods (4) are fixedly connected with the two ends of the other cross bars (3), the upper surface of the base (1) is fixedly connected with three cooling water tanks (5), the three cooling water tanks (5) are equidistantly arranged, water pumps (6) are communicated between every two adjacent cooling water tanks (5), one side of the three cooling water tanks (5) is connected with spray mechanisms, the other end of the spray mechanism is above the cooling water tank (5), one side of every two adjacent long rods (4) is connected with moving assemblies, the moving assemblies are connected with a cast blank disc (7) between them, a plurality of water leakage holes (701) are formed in the bottom of the cast blank disc (7), and the cast blank disc (7) is above the three cooling water tanks (5).

2. A cooling device for a continuously cast strand according to claim 1, characterized in that: Adjacent two cooling water tanks (5) are fixedly connected with water receiving trays (8), the water receiving trays (8) are located on the top of the cooling water tanks (5), and the two sides of the water receiving trays (8) are communicated with the adjacent two cooling water tanks (5) respectively.

3. A cooling device for a continuously cast strand according to claim 1 or 2, characterized in that: The spray mechanism comprises a spray head (9), a water pipe (10) and a spray water pump (11), one end of the water pipe (10) is communicated with one side of the bottom of the cooling water tank (5), the other end is fixedly connected with the spray head (9) and is communicated, the spray head (9) is located directly above the cooling water tank (5), the output end of the spray water pump (11) is fixedly connected with one end of the water pipe (10) away from the spray head (9) and is communicated, and the shell of the spray water pump (11) is fixedly connected with the base (1).

4. A continuous casting billet cooling device according to claim 3, characterized in that: The two sides of the spray head (9) are fixedly connected with support plates (12), and the two support plates (12) are fixedly connected with the two long rods (4) away from the base (1) respectively.

5. A cooling device for a continuously cast strand according to claim 3, characterized in that: The side wall of the cooling water tank (5) near one end of the base (1) is fixedly connected with and communicated with a connecting pipe head (13), and the other end of the connecting pipe head (13) is slidably connected with the inner wall of one end of the water pipe (10) near the spray water pump (11).

6. A cooling device for a continuously cast strand according to claim 1, 2, 4 or 5, characterized in that: The moving assembly comprises a lead screw (14), an internally threaded pipe (15) and a connecting plate (16), the connecting plate (16) is fixedly connected with one side of the cast blank disc (7), the internally threaded pipe (15) is fixedly connected with one end of the connecting plate (16) away from the cast blank disc (7), one end of the lead screw (14) is rotatably connected with one of the cross bars (3), the other end of the lead screw (14) penetrates the internally threaded pipe (15) and the other cross bar (3) in sequence and is connected with a driving assembly, the other end of the driving assembly is connected with the other lead screw (14), the lead screw (14) is threadedly connected with the internally threaded pipe (15), and the lead screw (14) is rotatably connected with the two cross bars (3).

7. A continuous casting billet cooling device according to claim 6, characterized in that: The driving assembly comprises a driving motor (17), a synchronous belt transmission belt (18) and two I-shaped pulleys (19), the two I-shaped pulleys (19) are fixedly connected with two lead screws (14) penetrating one end of the cross rod (3) respectively, the transmission belt (18) is sleeved with the two I-shaped pulleys (19) and is engaged with the two I-shaped pulleys (19), the output end of the driving motor (17) is fixedly connected with one of the I-shaped pulleys (19) away from one side of the lead screw (14), and the shell of the driving motor (17) is fixedly connected with the adjacent cross rod (3) through a mounting seat.

8. A cooling device for a continuously cast strand according to claim 6, characterized in that: A supporting groove (401) is arranged on one side of the long rod (4) close to the connecting plate (16), a plurality of pulleys (20) are fixedly connected to one side of the connecting plate (16) close to the supporting groove (401), the plurality of pulleys (20) are located in the supporting groove (401) and are in sliding connection with the inner wall of the supporting groove (401).

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