Method and device for eliminating low-oxygen copper liquid bubbles in horizontal continuous casting crystallization cavity

Abstract

The invention discloses a horizontal continuous casting crystallization cavity low-oxygen copper liquid bubble eliminating method and device, and relates to the technical field of low-oxygen copper liquid continuous casting crystallization, a continuous casting machine shell and a bubble eliminating cavity are included, a continuous casting crystallization mechanism is arranged in the continuous casting machine shell, and a stirring mechanism is arranged in the bubble eliminating cavity. The stirring mechanism comprises a first motor arranged in the bubble eliminating cavity, a sliding groove is formed in the first motor, a sliding block is slidably connected to the interior of the sliding groove, a threaded rod is arranged at the output end of the first motor, a threaded cylinder is in threaded connection to the exterior of the threaded rod, and an air suction cylinder is fixedly connected to the interior of the bubble eliminating cavity. The thorn-shaped stirring fan can stir copper liquid in the bubble eliminating cavity at different heights, so that bubbles in the copper liquid are punctured and eliminated, dead angles are few when the bubbles are eliminated, a vacuum environment is formed in the bubble eliminating cavity, some missing bubbles are eliminated again, and the bubbles can be effectively prevented from being generated again in the copper liquid.

Description

Technical Field

[0001] This invention relates to the field of low-oxygen copper melt continuous casting crystallization technology, and in particular to a method and apparatus for eliminating air bubbles in low-oxygen copper melt in a horizontal continuous casting crystallization chamber. Background Technology

[0002] The low-oxygen molten copper in the crystallization chamber of horizontal continuous casting is a crucial step in copper processing. Horizontal continuous casting is a continuous casting technology used to produce metal or alloy bars with specific cross-sectional shapes. Specifically, the crystallization chamber is where molten copper cools and solidifies to form a continuous billet. Controlling the oxygen content in the molten copper is critical in this process. The flow, cooling, and solidification of low-oxygen molten copper within the crystallization chamber require precise control to ensure the quality and performance of the billet. This includes controlling parameters such as the flow rate, temperature distribution, and crystallization rate of the molten copper. The Contirod double-belt casting method is a special casting method where molten copper is poured into a rectangular crystallization chamber composed of upper and lower annular steel belts and left and right annular bronze side chains, where it is cooled and solidified into a billet. The molten copper flows smoothly and without turbulence onto the steel belt of the continuous casting machine. The entire crystallization process takes place essentially horizontally, preventing defects caused by bending. The molten copper is subjected to positive hydrostatic pressure, making it less prone to central shrinkage cavities. The crystalline metallographic structure of the billet exhibits rectangular symmetrical crystals, with uniform cooling, resulting in ideal crystal grain size and a uniformly distributed oxygen crystalline structure, thus producing a high-quality billet.

[0003] However, in the existing technology, the Contirod double-belt casting method is tilted during copper molten casting, so air bubbles may be trapped in the solidified copper billet before solidification. This can easily lead to substandard copper billet structure and quality, affecting subsequent continuous rolling processes and reducing the performance of continuously cast and rolled low-oxygen copper rods. Therefore, it is necessary to propose a method and device for eliminating air bubbles in low-oxygen copper molten liquid in the horizontal continuous casting crystallization chamber. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the tilting of the Contirod double-belt casting process during copper molten casting, which may result in air bubbles being trapped in the solidified copper billet before solidification. This can lead to substandard microstructure and quality of the formed copper billet, affecting subsequent continuous rolling processes and reducing the performance of continuously cast and rolled low-oxygen copper rods. Therefore, this invention proposes a method and apparatus for eliminating air bubbles in low-oxygen copper molten liquid in a horizontal continuous casting crystallization chamber.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A method for eliminating air bubbles in low-oxygen copper melt in a horizontal continuous casting crystallization chamber includes the following steps: Step 1: The molten copper is injected into the cavity through the feed port. The continuous casting crystallization mechanism causes the transmission gears to rotate. The two sets of transmission gears drive the upper and lower steel belts to rotate. The cooling diversion pipe performs the first cooling operation. The molten copper is transferred to the bubble elimination cavity through the secondary cooling chamber. Step 2: Start the stirring mechanism. The stirring mechanism causes the first motor to run, and the first motor drives the threaded rod to start rotating. The threaded cylinder is fixed in place by two sets of brackets. At this time, the threaded rod starts to rotate and rise. The rotation and rise of the threaded rod drives the spiked stirring fan to rotate and rise. The spiked stirring fan eliminates the bubbles in the copper liquid inside the bubble elimination cavity. Step 3: Start the suction mechanism, which causes the second motor to run. The second motor controls the transmission rod to rotate inside the machine box. When the transmission rod rotates, it drives the suction fan to rotate inside the suction cylinder. The suction fan generates a large amount of suction to suck away the air inside the bubble elimination chamber. The bubble elimination chamber forms a vacuum environment, and the bubbles in the copper liquid are eliminated and the regeneration of bubbles can be prevented. Step 4: The processed copper liquid is transferred to the secondary cooling chamber through the casting valve pipe. The secondary cooling chamber cools the copper liquid a second time. After cooling, the secondary cooling chamber transfers the copper liquid inside back into the cavity for subsequent crystallization, completely eliminating air bubbles in the copper liquid.

[0006] The above technical solution further includes: A device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber includes a continuous casting machine housing and an air bubble elimination chamber. A continuous casting crystallization mechanism is provided inside the continuous casting machine housing, and a stirring mechanism is provided inside the air bubble elimination chamber. The stirring mechanism includes a first motor installed inside the air bubble elimination chamber. A sliding groove is opened inside the first motor, and a slider is slidably connected inside the sliding groove. A threaded rod is provided at the output end of the first motor, and a threaded cylinder is threadedly connected to the outside of the threaded rod. An air extraction cylinder is fixedly connected inside the bubble elimination chamber. An air extraction mechanism is installed inside the air extraction cylinder. The air extraction mechanism includes a second motor installed inside the air extraction cylinder. A transmission rod is installed at the output end of the second motor. A suction fan is fixedly connected to the side of the transmission rod away from the second motor. The air extraction mechanism causes the suction fan to change from a stationary state to a rotating state. Molten copper is injected into the chamber through the feed inlet. During this process, the copper remains in a high-temperature liquid state to facilitate its smooth flow into the chamber. The subsequent activation of the continuous casting crystallization mechanism aims to initially cool the copper, but not to completely solidify it. This cooling process slows the flow rate of the copper, preparing for subsequent bubble elimination and further cooling.

[0007] The continuous casting crystallization mechanism includes a feed inlet inside the continuous casting machine housing, the continuous casting machine housing and the feed inlet being fixedly connected, a cavity being fixedly connected to the outside of the feed inlet, an upper steel belt being slidably connected to the outside of the cavity, a tensioning wheel being installed inside the upper steel belt, and a transmission gear being installed on the side of the upper steel belt away from the tensioning wheel.

[0008] A lower steel belt is slidably connected to the side of the cavity away from the tensioning wheel. A conduction belt is installed outside the lower steel belt. A stop block is fixedly connected to the outside of the conduction belt. A stop block preheater is installed outside the conduction belt.

[0009] A secondary cooling chamber is fixedly connected inside the continuous casting machine housing. The secondary cooling chamber is fixedly connected to the bubble elimination chamber. A cooling distribution pipe is fixedly connected inside the continuous casting machine housing.

[0010] The bubble elimination chamber is fixedly connected to the first motor, the slider is fixedly connected to the threaded rod, a bracket is fixedly connected to the outside of the threaded cylinder, the bracket is fixedly connected to the bubble elimination chamber, and a spiked stirring fan is fixedly connected to the side of the threaded rod away from the first motor.

[0011] The air extraction cylinder is fixedly connected to a housing, the second motor is installed inside the housing, the transmission rod is rotatably connected to the housing, and the suction fan is rotatably connected to the air extraction cylinder.

[0012] A filter assembly is fixedly connected inside the air extraction cylinder, and a telescopic rod is fixedly connected to the side of the air extraction cylinder away from the filter assembly. A baffle is fixedly installed on the outside of the telescopic rod.

[0013] The continuous casting machine housing is symmetrically equipped with exhaust ports, and a steel strip dryer is fixedly connected inside the continuous casting machine housing.

[0014] The bubble elimination chamber is equipped with a casting valve pipe.

[0015] The present invention has the following beneficial effects: 10. In this invention, the first motor drives the threaded rod to rotate, and the two sets of brackets fix the threaded cylinder in place. When the threaded rod rotates and rises, it drives the two sets of sliders to slide inside the groove. The threaded rod drives the spiked stirring fan to rotate and rise in the copper liquid. The spiked stirring fan can stir the copper liquid inside the bubble elimination chamber at different heights, so that the bubbles in the copper liquid are punctured and eliminated. Moreover, there are few dead corners when eliminating bubbles. The device is simple and uncomplicated to operate, and can effectively eliminate the bubbles generated in the copper liquid, thus improving the working efficiency of the device.

[0016] 11. In this invention, the second motor drives the transmission rod to rotate, and the transmission rod drives the suction fan to rotate inside the air extraction cylinder. The rotation of the suction fan generates a large amount of suction force. The suction fan begins to extract the air generated by the bubbles punctured by the stirring mechanism from the inside of the bubble elimination chamber, and creates a vacuum environment inside the bubble elimination chamber, thereby eliminating some missed bubbles. This effectively prevents bubbles from being generated again in the copper liquid and effectively prevents bubbles from being trapped in the solidified copper billet, which would cause the copper billet shape and quality to be substandard. This enhances the functionality of the device in eliminating bubbles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a method and apparatus for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber, as proposed in this invention. Figure 2 This is a schematic diagram of the external structure in this invention; Figure 3 This is a schematic diagram of the first three-dimensional structure in this invention; Figure 4 This is a schematic diagram of the second three-dimensional structure in the present invention; Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0018] In the diagram: 1. Continuous casting machine housing; 2. Feed inlet; 3. Cavity; 4. Tensioner wheel; 5. Upper steel belt; 6. Transmission gear; 7. Lower steel belt; 8. Conductor belt; 9. Stop block; 10. Stop block preheater; 11. Secondary cooling chamber; 12. Cooling diversion pipe; 13. Bubble elimination chamber; 14. First motor; 15. Slide groove; 16. Sliding block; 17. Threaded rod; 18. Threaded cylinder; 19. Support; 20. Spiked agitator fan; 21. Evacuation cylinder; 22. Chassis; 23. Second motor; 24. Transmission rod; 25. Suction fan; 26. Filter assembly; 27. Telescopic rod; 28. Baffle; 29. ​​Exhaust port; 30. Steel strip dryer; 31. Casting valve pipe. Detailed Implementation

[0019] 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.

[0020] Example 1 like Figure 1-6As shown, the present invention proposes a device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber, comprising a continuous casting machine housing 1 and an air bubble elimination chamber 13. A continuous casting crystallization mechanism is provided inside the continuous casting machine housing 1, and a stirring mechanism is provided inside the air bubble elimination chamber 13. The stirring mechanism includes a first motor 14 provided inside the air bubble elimination chamber 13. A sliding groove 15 is provided inside the first motor 14, and a slider 16 is slidably connected inside the sliding groove 15. A threaded rod 17 is provided at the output end of the first motor 14, and a threaded cylinder 18 is threadedly connected to the outside of the threaded rod 17. An air extraction cylinder 21 is fixedly connected inside the bubble elimination chamber 13. An air extraction mechanism is provided inside the air extraction cylinder 21. The air extraction mechanism includes a second motor 23 installed inside the air extraction cylinder 21. A transmission rod 24 is provided at the output end of the second motor 23. A suction fan 25 is fixedly connected to the side of the transmission rod 24 away from the second motor 23. The air extraction mechanism causes the suction fan 25 to change from a stationary state to a rotating state. The continuous casting crystallization mechanism includes a feed inlet 2 inside the continuous casting machine housing 1, the continuous casting machine housing 1 and the feed inlet 2 are fixedly connected, a cavity 3 is fixedly connected to the outside of the feed inlet 2, an upper steel belt 5 is slidably connected to the outside of the cavity 3, a tensioning wheel 4 is installed inside the upper steel belt 5, and a transmission gear 6 is installed on the side of the upper steel belt 5 away from the tensioning wheel 4. A lower steel belt 7 is slidably connected to the side of the cavity 3 away from the tensioning wheel 4. A conduction belt 8 is installed outside the lower steel belt 7. A stop block 9 is fixedly connected to the outside of the conduction belt 8. A stop block preheater 10 is installed outside the conduction belt 8. A secondary cooling chamber 11 is fixedly connected inside the continuous casting machine housing 1. The secondary cooling chamber 11 is fixedly connected to the bubble elimination chamber 13. A cooling diversion pipe 12 is fixedly connected inside the continuous casting machine housing 1. The bubble elimination chamber 13 is fixedly connected to the first motor 14, the slider 16 is fixedly connected to the threaded rod 17, the threaded cylinder 18 is fixedly connected to the outside of the bracket 19, the bracket 19 is fixedly connected to the bubble elimination chamber 13, and the threaded rod 17 is fixedly connected to the side away from the first motor 14 with a spiked stirring fan 20. The air extraction cylinder 21 is fixedly connected to the housing 22. The second motor 23 is located inside the housing 22. The transmission rod 24 is rotatably connected to the housing 22. The suction fan 25 is rotatably connected to the air extraction cylinder 21. The bubble elimination chamber 13 is equipped with a casting valve pipe 31.

[0021] In this embodiment, the continuous casting crystallization mechanism is first started, and the molten copper is poured into the feed port 2 inside the continuous casting machine housing 1. The molten copper enters the cavity 3 through the feed port 2. At this time, the upper steel belt 5 and the lower steel belt 7, which are slidably connected to the cavity 3, start to run. The upper steel belt 5 and the lower steel belt 7 start to rotate through the transmission gear 6 inside them. The transmission gear 6 is driven by a motor. The tension wheel 4 inside the upper steel belt 5 is responsible for tightening and loosening the upper steel belt 5. At this time, the molten copper begins to flow inside the cavity 3. The lower steel belt 7 has a stop block 9 connected by a stainless steel rope to form the side block of the cavity 3. It moves synchronously with the moving transmission belt 8 through the friction of the steel belt. By adjusting the distance between the two side blocks, billets of different widths can be obtained. The billets are then heated by the blocks 9 fixedly connected to the outside of the conduction belt 8 located below the lower steel belt 7. A block preheater 10 is installed outside the conduction belt 8. The block preheater 10 is responsible for heating multiple sets of blocks 9. The cooling diversion pipe 12 fixedly connected inside the continuous casting machine housing 1 is responsible for the first cooling operation. The copper liquid is then transferred to the bubble elimination chamber 13 through the secondary cooling chamber 11 connected to the cavity 3.

[0022] At this time, the stirring mechanism inside the bubble elimination chamber 13 is activated, and the first motor 14 in the stirring mechanism starts to run. When the first motor 14 runs, it controls the threaded rod 17 at its output end to start rotating. The threaded rod 17 starts to rotate inside the threaded cylinder 18 that is threaded to its outside. Two sets of brackets 19 are fixedly connected to the outside of the threaded cylinder 18, which keeps the threaded cylinder 18 stationary. At this time, the threaded rod 17 is subjected to a reaction force and starts to rotate and rise. Two sets of sliders 16 are fixedly connected to the outside of the threaded rod 17. When the threaded rod 17 rotates and rises, it drives the two sets of sliders 16 to slide inside the grooves 15 opened inside the first motor 14, without affecting the rising and falling of the threaded rod 17. A spiked stirring fan 20 is fixedly connected to the other side of the threaded rod 17. When the threaded rod 17 rotates and rises, it drives the spiked stirring fan 20 to start rotating and rising inside the bubble elimination chamber 13. When the spiked stirring fan 20 rotates and rises, it starts to puncture the bubbles in the copper liquid, which can eliminate most of the bubbles in the copper liquid. An air extraction cylinder 21 is fixedly connected inside the bubble elimination chamber 13. When the air extraction mechanism inside the air extraction cylinder 21 is activated, a housing 22 is fixedly connected inside the air extraction cylinder 21. A second motor 23 located inside the housing 22 starts operating. The second motor 23 controls the transmission rod 24 located at its output end to rotate. The transmission rod 24 is rotatably connected to the inside of the housing 22. A suction fan 25 is fixedly connected to the other side of the transmission rod 24. When the transmission rod 24 rotates, it drives the suction fan 25 to start rotating. When it starts to rotate, the suction fan 25 is rotatably connected to the inside of the air extraction cylinder 21. The suction fan 25 starts to rotate inside the air extraction cylinder 21 and generates a large amount of suction. When the suction fan 25 rotates, it sucks out the air inside the bubble elimination chamber 13, so that a vacuum environment is formed inside the bubble elimination chamber 13, which can eliminate bubbles and prevent the generation of new bubbles. At this time, the processed copper liquid is transferred back to the secondary cooling chamber 11 for a second cooling through the casting valve pipe 31 set inside the bubble elimination chamber 13. The processed copper liquid re-enters the chamber 3 for crystallization.

[0023] Example 2 like Figure 1-6 As shown, based on Embodiment 1, a filter assembly 26 is fixedly connected inside the air extraction cylinder 21, a telescopic rod 27 is fixedly connected to the side of the air extraction cylinder 21 away from the filter assembly 26, and a baffle 28 is fixedly installed on the outside of the telescopic rod 27. The continuous casting machine housing 1 has symmetrically installed exhaust ports 29 inside, and a steel strip dryer 30 is fixedly connected inside the continuous casting machine housing 1.

[0024] In this embodiment, a filter assembly 26 is fixedly connected inside the extraction cylinder 21. The filter assembly 26 can adsorb and filter out some impurities in the exhaust air, preventing pollution of the working environment during device operation. A telescopic rod 27 is fixedly connected inside the other side of the extraction cylinder 21. Multiple sets of telescopic rods 27 are provided. When these multiple sets of telescopic rods 27 extend and retract, they can move the baffle 28 until the baffle 28 seals the inside of the extraction cylinder 21, preventing impurities from entering the device when it is not in operation. An exhaust port 29 is fixedly installed inside the continuous casting machine housing 1. Two sets of exhaust ports 29 are provided, mainly for ventilating the air inside the continuous casting machine housing 1. A steel strip dryer 30 is installed inside the continuous casting machine housing 1. The main function of the steel strip dryer 30 is to dry the steel strip.

[0025] 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 method for eliminating air bubbles in low-oxygen copper melt in a horizontal continuous casting crystallization chamber, characterized in that, Includes the following steps: Step 1: The molten copper is poured into the cavity (3) through the feed port (2). The continuous casting crystallization mechanism causes the transmission gear (6) to rotate. The two sets of transmission gears (6) drive the upper steel belt (5) and the lower steel belt (7) to rotate. The cooling diversion pipe (12) performs the first cooling operation. The molten copper is transferred to the bubble elimination cavity (13) through the secondary cooling chamber (11). Step 2: Start the stirring mechanism. The stirring mechanism causes the first motor (14) to run. The first motor (14) drives the threaded rod (17) to start rotating. The threaded cylinder (18) is fixed in place by two sets of brackets (19). At this time, the threaded rod (17) starts to rotate and rise. The rotation and rise of the threaded rod (17) drives the spiked stirring fan (20) to rotate and rise. The spiked stirring fan (20) eliminates the copper liquid bubbles inside the bubble elimination cavity (13). Step 3: Start the suction mechanism, which causes the second motor (23) to run. The second motor (23) controls the transmission rod (24) to rotate inside the casing (22). When the transmission rod (24) rotates, it drives the suction fan (25) to rotate inside the suction cylinder (21). The suction fan (25) generates a large amount of suction to suck away the air inside the bubble elimination chamber (13). A vacuum environment is formed inside the bubble elimination chamber (13). The bubbles in the copper liquid are eliminated and the regeneration of bubbles can be prevented. Step 4: The processed copper liquid is transferred to the secondary cooling chamber (11) through the casting valve pipe (31). The secondary cooling chamber (11) cools the copper liquid for the second time. After cooling, the secondary cooling chamber (11) transfers the copper liquid inside back to the cavity (3) for subsequent crystallization work, completely eliminating bubbles in the copper liquid.

2. A device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber according to claim 1, comprising a continuous casting machine housing (1) and an air bubble elimination chamber (13), characterized in that, The continuous casting machine housing (1) is provided with a continuous casting crystallization mechanism, and the bubble elimination chamber (13) is provided with a stirring mechanism. The stirring mechanism includes a first motor (14) provided inside the bubble elimination chamber (13). The first motor (14) has a sliding groove (15) inside, and a slider (16) is slidably connected inside the sliding groove (15). The output end of the first motor (14) is provided with a threaded rod (17), and a threaded cylinder (18) is threadedly connected to the outside of the threaded rod (17). An air extraction cylinder (21) is fixedly connected inside the bubble elimination chamber (13). An air extraction mechanism is provided inside the air extraction cylinder (21). The air extraction mechanism includes a second motor (23) installed inside the air extraction cylinder (21). A transmission rod (24) is provided at the output end of the second motor (23). A suction fan (25) is fixedly connected to the side of the transmission rod (24) away from the second motor (23). The air extraction mechanism causes the suction fan (25) to change from a stationary state to a rotating state.

3. The device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber according to claim 2, characterized in that, The continuous casting crystallization mechanism includes a feed inlet (2) provided inside the continuous casting machine housing (1), the continuous casting machine housing (1) and the feed inlet (2) are fixedly connected, a cavity (3) is fixedly connected to the outside of the feed inlet (2), an upper steel belt (5) is slidably connected to the outside of the cavity (3), a tensioning wheel (4) is installed inside the upper steel belt (5), and a transmission gear (6) is installed on the side of the upper steel belt (5) away from the tensioning wheel (4).

4. The device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber according to claim 3, characterized in that, The cavity (3) is slidably connected to a lower steel belt (7) on the side away from the tension wheel (4). A conduction belt (8) is installed on the outside of the lower steel belt (7). A stop block (9) is fixedly connected to the outside of the conduction belt (8). A stop block preheater (10) is installed on the outside of the conduction belt (8).

5. The device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber according to claim 2, characterized in that, The continuous casting machine housing (1) is fixedly connected to a secondary cooling chamber (11), which is fixedly connected to a bubble elimination chamber (13). The continuous casting machine housing (1) is also fixedly connected to a cooling distribution pipe (12).

6. The device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber according to claim 2, characterized in that, The bubble elimination chamber (13) is fixedly connected to the first motor (14), the slider (16) is fixedly connected to the threaded rod (17), the threaded cylinder (18) is fixedly connected to the outside of the bracket (19), the bracket (19) is fixedly connected to the bubble elimination chamber (13), and the threaded rod (17) is fixedly connected to the side away from the first motor (14) with a spiked stirring fan (20).

7. The device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber according to claim 2, characterized in that, The air extraction cylinder (21) is fixedly connected to the housing (22), the second motor (23) is installed inside the housing (22), the transmission rod (24) is rotatably connected to the housing (22), and the suction fan (25) is rotatably connected to the air extraction cylinder (21).

8. The device for eliminating air bubbles in low-oxygen copper liquid in a horizontal continuous casting crystallization chamber according to claim 2, characterized in that, The air extraction cylinder (21) is fixedly connected to a filter assembly (26), and a telescopic rod (27) is fixedly connected to the side of the air extraction cylinder (21) away from the filter assembly (26). A baffle (28) is fixedly installed on the outside of the telescopic rod (27).

9. A device for eliminating air bubbles in low-oxygen copper melt in a horizontal continuous casting crystallization chamber according to claim 2, characterized in that, The continuous casting machine housing (1) is symmetrically equipped with exhaust ports (29), and a steel strip dryer (30) is fixedly connected inside the continuous casting machine housing (1).

10. A device for eliminating air bubbles in low-oxygen copper melt in a horizontal continuous casting crystallization chamber according to claim 2, characterized in that, The bubble elimination chamber (13) is equipped with a casting valve pipe (31).

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