A crystallization device for a tin bar continuous casting machine

Abstract

The application relates to a crystallization device for a tin bar continuous casting machine and relates to the field of tin bar continuous casting crystallization equipment. The crystallization device comprises a crystallization mold shell, one end of the crystallization mold shell is arranged as a feeding port, the feeding port is fixed at a liquid discharging port of the continuous casting machine through a flange ring, the other end of the crystallization mold shell is arranged as a discharging port, and the discharging port is used for discharging tin bar blank after crystallization; a cooling piece for cooling tin water in the crystallization mold shell is assembled outside the crystallization mold shell, the cooling piece comprises a cooling water cylinder shell, the cooling water cylinder shell is horizontally sleeved outside the crystallization mold shell, and a plurality of atomizing nozzles are uniformly communicated and fixed on the inner circumferential surface of the cooling water cylinder shell. The cooling water sprayed on the outer wall of the crystallization mold shell can completely absorb heat, the cooling effect of the crystallization mold shell along the tin water flowing direction is ensured to be the same, and the cooling efficiency and effect are improved.

Description

Technical Field

[0001] This application relates to the technical field of tin bar continuous casting crystallization equipment, and in particular to a crystallization device for a tin bar continuous casting machine. Background Technology

[0002] A tin bar continuous casting machine is a metallurgical device specifically designed for continuously casting molten tin or tin alloys into bar-shaped billets. It is widely used in the solder manufacturing industry. A continuous casting machine continuously pours and solidifies high-temperature liquid metal into solid billets with a specific cross-sectional shape and size. In the continuous casting process, "crystallization" specifically refers to the process by which the liquid metal begins to cool in the crystallizer and forms a primary solid shell. This is the most critical physical transformation in continuous casting, and the process occurs within the crystallizer.

[0003] The existing publication number CN207372250U, entitled "A Crystallization Device for a Continuous Casting Machine," includes a crystallization tube. A molten steel inlet is located on one side of the crystallization tube, and a separation ring is installed inside the molten steel inlet. A molten steel ladle is located on the side of the molten steel inlet away from the crystallization tube. An anti-sticking layer is installed on the inner wall of the crystallization tube, and condensing tubes are installed on both the upper and lower sides of the crystallization tube. The beneficial effects of this invention are: by installing condensing tubes on both the upper and lower layers of the crystallization tube, water enters and exits in the direction of molten steel flow, breaking the state of condensation on only one side in the original equipment. This allows for more uniform and fine crystal formation within the crystallization tube, improving product quality, solving the problem of low profile yield caused by uneven steel cooling, reducing the maintenance cost of the continuous casting crystallizer, and increasing its service life. The anti-sticking layer and separation ring inside the crystallization tube make the crystal removal process more convenient and reduce the occurrence of crystal breakage.

[0004] Regarding the aforementioned technologies, the inventors discovered that when forming a blank during the cooling and crystallization of solder bars, a condenser pipe is installed outside the mold. The cooling water in the condenser pipe flows along the direction of the molten solder. The flowing cooling water continuously absorbs heat, resulting in a decrease in the heat absorption capacity of the cooling water at the rear of the condenser pipe. This leads to a temperature difference in the crystallization of the solder bars, resulting in inconsistent cooling and crystallization effects. Utility Model Content

[0005] To overcome the problem that existing condenser pipes are installed outside the mold, and the cooling water in the condenser pipes flows along the direction of molten tin, the continuous absorption of heat by the flowing cooling water leads to a decrease in the heat absorption capacity of the cooling water at the rear of the condenser pipes, resulting in temperature differences in molten tin crystallization and thus inconsistent cooling and crystallization effects, this application provides a crystallization device for a molten tin continuous casting machine.

[0006] The crystallization device for a tin bar continuous casting machine provided in this application adopts the following technical solution: A crystallization device for a tin bar continuous casting machine includes a crystallization mold shell. One end of the crystallization mold shell is configured as a feed port, and the feed port is fixed to the discharge port of the continuous casting machine by a flange ring. The other end of the crystallization mold shell is configured as a discharge port, and the discharge port is used to discharge the crystallized tin bar billet. The crystallization mold shell is externally assembled with a cooling component for cooling the molten tin in the crystallization mold shell. The cooling component includes a cooling water cylinder shell, which is horizontally sleeved on the outside of the crystallization mold shell. Multiple atomizing nozzles are uniformly connected and fixed on the inner circumferential surface of the cooling water cylinder shell. A diversion pipe is vertically connected and fixed on the outer wall of the cooling water cylinder shell, and a cooling water pump is connected and fixed on the diversion pipe. The top end of the diversion pipe is connected and fixed to the coolant delivery pipe.

[0007] By adopting the above technical solution, this crystallization device for a tin bar continuous casting machine cools and crystallizes molten tin into tin bar billets through a crystallization mold shell. One end of the crystallization mold shell is fixed to the discharge port of the continuous casting machine via a flange ring, serving as a feed inlet to allow molten tin to enter; the other end serves as a discharge outlet to discharge the crystallized tin bar billets. The cooling components are arranged around the crystallization mold shell and consist of a cooling water cylinder shell. The atomizing nozzles inside atomize the cooling water, increasing the fluidity and coverage of the atomized water vapor, allowing the cooling water mist to be evenly sprayed onto the surface of the crystallization mold shell. When the molten tin contacts the crystallization mold shell, heat is transferred to the atomized water mist, which absorbs heat and evaporates to form steam, accelerating the cooling process of the molten tin. Cooling water is supplied by a cooling water pump through a vertically connected branch pipe, ensuring that the cooling water is evenly distributed into the cooling water cylinder shell. The cooling water is then sprayed onto the outer wall of the crystallizing mold shell through atomizing nozzles, ensuring that all the cooling water sprayed onto the outer wall of the crystallizing mold shell absorbs heat completely. This guarantees that the cooling effect of the crystallizing mold shell is the same along the direction of molten tin flow, improving cooling efficiency and effectiveness. Molten tin enters the crystallizing mold shell through the inlet and solidifies into tin bars. The external cooling components continuously absorb heat from the crystallizing mold shell and molten tin through the cooling water sprayed from the atomizing nozzles, causing the molten tin to cool rapidly and form into tin bars, which are finally discharged through the outlet.

[0008] Optionally, multiple heat-conducting fins are provided on the outer circumferential surface of the crystallization mold shell along the circumferential direction, and the multiple heat-conducting fins are fixed on the outer circumferential surface of the crystallization mold shell, and the heat-conducting fins are wavy.

[0009] By adopting the above technical solution, during the cooling process, heat is transferred to the heat-conducting fins through the crystallization mold shell. The wavy structure of the heat-conducting fins increases the contact area with the surrounding medium and improves the heat exchange efficiency, thereby making the crystallization process more efficient and faster.

[0010] Optionally, both ends of the cooling water cylinder shell are fixed with blocking ring plates, and the inner circumferential surface of the blocking ring plates is sealed and fixed to the outer circumferential surface of the crystallization mold shell.

[0011] By adopting the above technical solution, cooling water flows through the channel in the cooling water cylinder shell to the outer surface of the crystallization mold shell, and efficiently transfers heat through the sealing and fixing position of the plugging ring plate, carrying away the heat generated during the crystallization process, maintaining a suitable temperature for the crystallization process, so as to ensure the crystallization quality.

[0012] Optionally, the blocking ring plate at one end of the cooling water cylinder shell is fixed through the air intake ring, and an air intake pipe is fixedly connected to the outer wall of the air intake ring, and an air intake pump is fixedly connected to the air intake pipe of the air intake ring.

[0013] By adopting the above technical solution, external air is drawn in by the air intake pump and introduced between the air intake ring and the cooling water cylinder shell. The air enters the interior of the cooling water cylinder shell and carries heat-absorbing steam out of the cooling water cylinder shell, thereby improving the cooling effect and achieving a better cooling purpose.

[0014] Optionally, the sealing ring plate at the other end of the cooling water cylinder shell is fixed through the exhaust ring, and the exhaust ring is provided with multiple exhaust ports.

[0015] By adopting the above technical solution, external air is drawn in by the air intake pump and introduced between the air intake ring and the cooling water cylinder shell. The air enters the interior of the cooling water cylinder shell and carries heat-absorbing steam out of the cooling water cylinder shell, thereby improving the cooling effect and achieving a better cooling purpose.

[0016] Optionally, a support frame is horizontally provided below the crystallization mold shell, and the bottom surface of the support frame is fixed by fixing screws, while support springs are vertically fixed on both sides of the top surface of the support frame.

[0017] By adopting the above technical solution, the support frame is first fixed in the appropriate position by fixing screws, and then the crystallization mold shell is placed on the support frame, using the support frame as a support, while the support spring supports the crystallization mold shell through its elasticity.

[0018] Optionally, a support is vertically fixed on the outer wall of the crystallization mold shell, and the bottom surface of the support is fixedly connected to the top of the support spring. A vibration motor is horizontally fixed on the support.

[0019] By adopting the above technical solution, the bottom surface of the support is fixedly connected to the top of the supporting spring, allowing the support to perform elastic vertical displacement within a certain range. A vibration motor, horizontally fixed to the support, generates vibration, which is transmitted to the crystallization mold shell via the supporting spring. This causes the crystallizing material inside the mold shell to undergo periodic vibration. In this way, the crystallization mold shell, through the synergistic action of the vibration motor and the supporting spring, effectively promotes crystal growth and demolding during the crystallization process, improves crystallization efficiency, reduces the adhesion of crystal blocks, and ensures the quality and integrity of the crystal formation.

[0020] Optionally, the crystallization shell is made of graphene-reinforced copper-based composite material.

[0021] By adopting the above technical solution, the crystallization mold shell made of graphene-reinforced copper-based composite material can effectively improve the thermal conductivity of the mold shell, thereby accelerating the crystallization process and shortening the cooling time.

[0022] In summary, this application includes at least one of the following beneficial technical effects: a crystallization device for a tin bar continuous casting machine, which cools and crystallizes molten tin into tin bar billets through a crystallization mold shell. One end of the crystallization mold shell is fixed to the discharge port of the continuous casting machine by a flange ring, serving as a feed inlet to allow molten tin to enter; the other end serves as a discharge outlet to discharge the crystallized tin bar billets. The cooling components are arranged around the crystallization mold shell and consist of a cooling water cylinder shell. The atomizing nozzles inside atomize the cooling water, increasing the fluidity and coverage of the atomized water vapor, allowing the cooling water mist to be evenly sprayed onto the surface of the crystallization mold shell. When the molten tin contacts the crystallization mold shell, heat is transferred to the atomized water mist, which absorbs heat and evaporates to form steam, accelerating the cooling process of the molten tin. Cooling water is supplied by a cooling water pump through a vertically connected branch pipe, ensuring that the cooling water is evenly distributed into the cooling water cylinder shell. The cooling water is then sprayed onto the outer wall of the crystallizing mold shell through atomizing nozzles, ensuring that all the cooling water sprayed onto the outer wall of the crystallizing mold shell absorbs heat completely. This guarantees that the cooling effect of the crystallizing mold shell is the same along the direction of molten tin flow, improving cooling efficiency and effectiveness. Molten tin enters the crystallizing mold shell through the inlet and solidifies into tin bars. The external cooling components continuously absorb heat from the crystallizing mold shell and molten tin through the cooling water sprayed from the atomizing nozzles, causing the molten tin to cool rapidly and form into tin bars, which are finally discharged through the outlet. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state; Figure 3 This is a schematic diagram of the crystallization mold shell in the decomposed state according to an embodiment of this application; Figure 4 This is a schematic diagram of the cooling component in the disassembled state according to an embodiment of this application; Figure 5 This is a schematic diagram of the cooling water cylinder shell in the disassembled state according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Crystallization mold shell; 11. Inlet; 12. Outlet; 13. Heat-conducting fins; 14. Support; 15. Vibration motor; 16. Support bracket; 17. Fixing screw; 18. Support spring; 2. Cooling component; 21. Cooling water cylinder shell; 211. Atomizing nozzle; 212. Diverter pipe; 213. Cooling water pump; 22. Plug ring plate; 23. Air inlet ring; 231. Air inlet pump; 24. Exhaust ring. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] This application discloses a crystallization apparatus for a tin bar continuous casting machine. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A crystallization device for a tin bar continuous casting machine includes a crystallization mold shell 1. One end of the crystallization mold shell 1 is configured as a feed port 11, which is fixed to the discharge port of the continuous casting machine by a flange ring. The other end of the crystallization mold shell 1 is configured as a discharge port 12, which is used to discharge the crystallized tin bar billet. A cooling component 2 for cooling the molten tin in the crystallization mold shell 1 is assembled on the outside of the crystallization mold shell 1. The cooling component 2 includes a cooling water cylinder shell 21, which is horizontally sleeved on the outside of the crystallization mold shell 1. Multiple atomizing nozzles 211 are uniformly connected and fixed on the inner circumferential surface of the cooling water cylinder shell 21. A diversion pipe 212 is vertically connected and fixed on the outer wall of the cooling water cylinder shell 21. A cooling water pump 213 is connected and fixed on the diversion pipe 212. The top end of the diversion pipe 212 is connected and fixed to the coolant delivery pipe.

[0027] By adopting the above technical solution, this crystallization device for a tin bar continuous casting machine cools and crystallizes molten tin into tin bar billets through a crystallization mold shell 1. One end of the crystallization mold shell 1 is fixed to the discharge port of the continuous casting machine by a flange ring, serving as an inlet 11 to allow molten tin to enter; the other end serves as a discharge port 12 to discharge the crystallized tin bar billets. The cooling component 2 is arranged around the crystallization mold shell 1 and consists of a cooling water cylinder shell 21. The atomizing nozzles 211 inside atomize the cooling water, increasing the fluidity and coverage of the atomized water vapor, allowing the cooling water mist to be evenly sprayed onto the surface of the crystallization mold shell 1. When the molten tin contacts the crystallization mold shell 1, heat is transferred to the atomized water mist, which absorbs heat and evaporates to form steam, accelerating the cooling process of the molten tin. Cooling water is supplied by cooling water pump 213 through vertically connected branch pipe 212, allowing the cooling water to be evenly guided into cooling water cylinder shell 21. The cooling water is then sprayed onto the outer wall of crystallization mold shell 1 through atomizing nozzle 211, ensuring that the cooling water sprayed onto the outer wall of crystallization mold shell 1 can completely absorb heat, ensuring that the cooling effect of crystallization mold shell 1 is the same along the direction of molten tin flow, and improving cooling efficiency and effect. Molten tin enters crystallization mold shell 1 through feed port 11 and solidifies into tin bars. The external cooling component 2 continuously absorbs the heat of crystallization mold shell 21 and molten tin through cooling water sprayed from atomizing nozzle 211, causing the molten tin to cool rapidly and form into tin bars, which are finally discharged through discharge port 12.

[0028] Reference Figure 3 Multiple heat-conducting fins 13 are arranged circumferentially on the outer circumferential surface of the crystallization mold shell 1, and these heat-conducting fins 13 are fixed to the outer circumferential surface of the crystallization mold shell 1, and the heat-conducting fins 13 are wavy. The purpose of this design is to increase the heat dissipation area and improve heat dissipation efficiency. The heat-conducting fins 13 can effectively transfer heat from inside the crystallization mold shell 1 to the external environment, thereby accelerating the cooling process. When the liquid undergoes cooling and crystallization inside the crystallization mold shell 1, the cooled heat is rapidly transferred to the surrounding medium through the heat-conducting fins 13, achieving rapid heat dissipation. The working principle is that during the cooling process, heat is transferred to the heat-conducting fins 13 through the crystallization mold shell 1. The wavy structure of the heat-conducting fins 13 increases the contact area with the surrounding medium, improving heat exchange efficiency, thus making the crystallization process more efficient and faster.

[0029] Reference Figure 4Both ends of the cooling water cylinder shell 21 are fixed with blocking ring plates 22, and the inner circumferential surface of the blocking ring plates 22 is sealed and fixed to the outer circumferential surface of the crystallization mold shell 1. The main function of the cooling water cylinder shell 21 is to ensure that the external cooling water can uniformly and efficiently cool the material generated inside the crystallization mold shell 1 through the blocking ring plates 22 fixed at both ends. The inner circumferential surface of the blocking ring plates 22 is sealed and fixed to the outer circumferential surface of the crystallization mold shell 1 to ensure that the cooling water will not leak, while making the cooling path more direct and compact, thus improving the cooling efficiency. The crystallization mold shell 1 is responsible for providing a suitable environment for the material to crystallize. The blocking ring plates 22 and the cooling water cylinder shell 21 work together to enable the cooling water to efficiently transfer heat, thereby ensuring temperature control during the crystallization process. The working principle is: the cooling water flows to the outer surface of the crystallization mold shell 1 through the channel in the cooling water cylinder shell 21, and efficiently transfers heat through the sealed and fixed position of the blocking ring plates 22, carrying away the heat generated during the crystallization process, maintaining a suitable temperature for the crystallization process, and ensuring the crystallization quality.

[0030] Reference Figure 4 A blocking ring plate 22 at one end of the cooling water cylinder shell 21 is fixedly connected to an air intake ring 23, and an air intake pipe is fixedly connected to the outer wall of the air intake ring 23. An air intake pump 231 is fixedly connected to the air intake pipe of the air intake ring 23. The cooling water cylinder shell 21 serves as a storage container for cooling water, cooling other components in the system. The blocking ring plate 22 at one end seals one end of the cooling water cylinder shell 21, while the air intake ring 23, installed inside the cooling water cylinder shell 21 via the blocking ring plate 22, is responsible for introducing air. The air intake pipe connected to the outer wall of the air intake ring 23 introduces external air into the system. The air intake pump 231 on the air intake ring 23 pumps external air into the system through the air intake pipe. Thus, after being pressurized by the air intake pump 231, the air enters the interior of the cooling water cylinder shell 21, and the air carrying heat-absorbing steam is discharged from the cooling water cylinder shell 21. The operating principle of the entire system is as follows: External air is drawn in by the intake pump 231 and introduced between the intake ring 23 and the cooling water cylinder shell 21. The air entering the cooling water cylinder shell 21 carries heat-absorbing steam as it exits, thus improving the cooling effect and achieving better cooling. An exhaust ring 24 is fixedly connected to a blocking plate 22 at the other end of the cooling water cylinder shell 21, and multiple exhaust ports are connected to the exhaust ring 24. The working principle is: External air is drawn in by the intake pump 231 and introduced between the intake ring 23 and the cooling water cylinder shell 21. The air entering the cooling water cylinder shell 21 carries heat-absorbing steam as it exits, thus improving the cooling effect and achieving better cooling.

[0031] Reference Figure 3A support frame 16 is horizontally positioned below the crystallization mold shell 1, and the bottom surface of the support frame 16 is fixed by fixing screws 17. Support springs 18 are vertically fixed on both sides of the top surface of the support frame 16. The crystallization mold shell 1 is used to form crystalline substances. The horizontally positioned support frame 16 serves as a support structure, fixed in place by fixing screws 17 to ensure the stability and adjustability of the overall structure. The vertically fixed support springs 18 on both sides of the top surface of the support frame 16 provide elastic support for the crystallization mold shell 1. The working principle of the entire system is as follows: first, the support frame 16 is fixed in place by fixing screws 17; then, the crystallization mold shell 1 is placed on the support frame 16, using the support frame 16 as a support, while the support springs 18 support the crystallization mold shell 1 through their elasticity. A bracket 14 is vertically fixed on the outer wall of the crystallization mold shell 1, and the bottom surface of the bracket 14 is fixedly connected to the top of the support springs 18. A vibration motor 15 is horizontally fixed on the bracket 14. The crystallization mold shell 1 serves as the basic structure supporting the crystallization material. A support frame 14 is vertically fixed to its outer wall, providing support for the installation of the vibration system. The bottom surface of the support frame 14 is fixedly connected to the top of the support spring 18, allowing the support frame 14 to undergo elastic vertical displacement within a certain range. The vibration motor 15, horizontally fixed to the support frame 14, generates vibration, which is transmitted to the crystallization mold shell 1 via the support spring 18, thus subjecting the crystallization material inside the mold shell to periodic vibration. In this way, through the synergistic action of the vibration motor 15 and the support spring 18, the crystallization mold shell 1 can effectively promote crystal growth and demolding during the crystallization process, improve crystallization efficiency, reduce the adhesion of crystal blocks, and ensure the quality and integrity of the crystal formation.

[0032] Reference Figure 3 The crystallization mold shell 1 is made of graphene-reinforced copper-based composite material. The crystallization mold shell made of graphene-reinforced copper-based composite material can effectively improve the thermal conductivity of the mold shell, thereby accelerating the crystallization process and shortening the cooling time.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A crystallization apparatus for a tin bar continuous casting machine, characterized in that, Includes a crystallization mold shell (1), one end of which is configured as a feed inlet (11), and the feed inlet (11) is fixed to the drain port of the continuous casting machine by a flange ring. The other end of the crystallization mold shell (1) is configured as a discharge port (12), and the discharge port (12) is used to discharge the crystallized tin bar billet. The crystallization mold shell (1) is equipped with a cooling component (2) for cooling the molten tin in the crystallization mold shell (1). The cooling component (2) includes a cooling water cylinder shell (21). The cooling water cylinder shell (21) is horizontally sleeved on the outside of the crystallization mold shell (1). Multiple atomizing nozzles (211) are uniformly connected and fixed on the inner circumferential surface of the cooling water cylinder shell (21). A diversion pipe (212) is vertically connected and fixed on the outer wall of the cooling water cylinder shell (21). A cooling water pump (213) is connected and fixed on the diversion pipe (212). The top end of the diversion pipe (212) is connected and fixed to the coolant delivery pipe.

2. The crystallization device for a tin bar continuous casting machine according to claim 1, characterized in that: Multiple heat-conducting fins (13) are arranged along the circumferential direction on the outer circumferential surface of the crystallization mold shell (1), and the multiple heat-conducting fins (13) are fixed on the outer circumferential surface of the crystallization mold shell (1), and the heat-conducting fins (13) are wavy.

3. The crystallization device for a tin bar continuous casting machine according to claim 1, characterized in that: Both ends of the cooling water cylinder shell (21) are fixed with a blocking ring plate (22), and the inner circumferential surface of the blocking ring plate (22) is sealed and fixed on the outer circumferential surface of the crystallization mold shell (1).

4. A crystallization device for a tin bar continuous casting machine according to claim 3, characterized in that: The blocking ring plate (22) at one end of the cooling water cylinder shell (21) is fixed through the air intake ring (23), and the air intake pipe is fixedly connected to the outer wall of the air intake ring (23), and the air intake pump (231) is fixedly connected to the air intake pipe of the air intake ring (23).

5. A crystallization apparatus for a tin bar continuous casting machine according to claim 4, characterized in that: The cooling water cylinder shell (21) is fixed to the vent ring (24) through the sealing ring plate (22) at the other end, and the vent ring (24) is provided with multiple vent ports.

6. A crystallization apparatus for a tin bar continuous casting machine according to claim 1, characterized in that: A support frame (16) is horizontally arranged below the crystallization mold shell (1), and the bottom surface of the support frame (16) is fixed by fixing screws (17). Support springs (18) are vertically fixed on both sides of the top surface of the support frame (16).

7. A crystallization apparatus for a tin bar continuous casting machine according to claim 6, characterized in that: A support (14) is vertically fixed on the outer wall of the crystallization mold shell (1), and the bottom surface of the support (14) is fixedly connected to the top of the support spring (18). A vibration motor (15) is horizontally fixed on the support (14).

8. A crystallization device for a tin bar continuous casting machine according to claim 1, characterized in that: The crystallization shell (1) is made of graphene-reinforced copper-based composite material.

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