Vacuum electron beam furnace crystallizer apparatus

Abstract

The application discloses a vacuum electron beam furnace crystallizer device and relates to the field of smelting equipment.The vacuum electron beam furnace crystallizer device comprises a vacuum electron beam furnace and a layered spiral cooling pipe arranged in the vacuum electron beam furnace.The layered spiral cooling pipe is composed of a cooling copper sleeve, a cooling isolation sleeve, a shell and a ingot dragging mechanism.The ingot dragging mechanism is movably arranged in the cooling copper sleeve.A first spiral guide groove is formed in the outer wall of the cooling copper sleeve along an axis.A second spiral guide groove is formed in the outer wall of the cooling isolation sleeve along an axis.An opening is formed in one side of the top of the cooling isolation sleeve.The first spiral guide groove and the second spiral guide groove are connected through the opening.The application constructs a continuous and efficient cooling water flow path, significantly improves the cooling uniformity of the metal ingot, avoids the uneven shrinkage of the upper and lower shells due to the difference in cooling speed, eliminates the shape defects such as double-taper and multi-taper of the ingot from the source, and significantly improves the ingot forming quality and subsequent processing convenience.

Description

Technical Field

[0001] This invention relates to the technical field of smelting equipment, specifically a vacuum electron beam furnace crystallizer device. Background Technology

[0002] Layered spiral cooling pipes are hailed as the core component of continuous casting equipment, considered the "heart" of the entire continuous casting system. They play a crucial role in the continuous casting process, directly affecting the quality of the cast billet and the stability of production. Due to their unique function and importance, layered spiral cooling pipes are figuratively described as the "heart" of continuous casting equipment, ensuring the efficient operation of the continuous casting process and the reliable guarantee of product quality.

[0003] However, the structure of the currently used layered spiral cooling tubes is complex, which easily leads to significant deficiencies in their heat dissipation performance. Specifically, the thermal conductivity of the lower part of the layered spiral cooling tube is extremely low, accounting for only 20% to 50% of the total thermal conductivity of the entire layered spiral cooling tube. This uneven thermal distribution further causes uneven shrinkage of the upper and lower blanks during the cooling process. Due to the significant difference in the shrinkage rate between the upper and lower blanks, the ingot inevitably exhibits a complex shape with double tapers or even multiple tapers during the forming process, which seriously affects the quality of the ingot and the convenience of subsequent processing. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a vacuum electron beam furnace crystallizer device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A vacuum electron beam furnace crystallizer device includes a vacuum electron beam furnace and a layered spiral cooling tube installed inside the vacuum electron beam furnace. The layered spiral cooling tube consists of a cooling copper sleeve, a cooling partition sleeve, a shell, and a dragging mechanism. The cooling partition sleeve is fitted outside the cooling copper sleeve, and the shell is fitted outside the cooling partition sleeve. The dragging mechanism is movably disposed in the cooling copper sleeve. The outer wall of the cooling copper sleeve has a first spiral guide groove along its axis, and the outer wall of the cooling partition sleeve has a second spiral guide groove along its axis. A notch is opened on one side of the top of the cooling partition sleeve, and the first spiral guide groove and the second spiral guide groove are connected through the notch. A water inlet pipe is fixed to the bottom of the outer wall of the cooling partition sleeve and is connected to the first spiral guide groove. A water outlet pipe is connected to the bottom side of the outer wall of the shell away from the water inlet pipe and is connected to the second spiral guide groove.

[0007] The ingot dragging mechanism is used to control the ingot body to rotate and move downward at a uniform speed within the cooling copper sleeve. The ingot dragging mechanism consists of a motion component, a protective shell, a drive component, and a vertical pipe. The protective shell is located below the layered spiral cooling pipe. The motion component is connected to the protective shell through the vertical pipe. The drive component is located below the protective shell and is used to control the upward movement of the protective shell and the rotation of the vertical pipe. The motion component is used to drive the ingot body to move and conduct heat.

[0008] Furthermore, the motion component includes a drag plate, the upper surface of which has a slot with an isosceles trapezoidal cross-section, the lower surface of which is fixed with a cooling plate by screws, the lower surface of which has a serpentine bend, a base plate sealed and fixed below the cooling plate, and a connecting block fixed on the lower surface of the base plate.

[0009] Furthermore, a frustum-shaped water inlet groove is provided at the center of the lower surface of the connecting block, a water supply through hole is provided at the top of the water inlet groove inside the connecting block, and a water outlet through hole is provided inside the other side of the connecting block. A connecting conduit is provided in the bottom plate at the water supply through hole and the water outlet through hole respectively.

[0010] Furthermore, the bottom of the connecting block is connected to a vertical pipe via bolts at the water inlet. A support block is fixed to the upper surface of the protective shell. The bottom end of the vertical pipe extends out of the cooling copper sleeve and passes through the support block and the top wall of the protective shell to the interior. The vertical pipe and the support block are movably connected via bearings.

[0011] Furthermore, isosceles trapezoidal baffles are fixed on both long sides of the upper surface of the protective shell, and a rotating water connector is fixed to the bottom end of the vertical pipe through a flange. The bottom of the rotating water connector extends through the bottom wall of the protective shell to the outside and is connected to an external water supply source through a pipe.

[0012] Furthermore, the drive assembly includes a fixed motor and a stepper motor. The fixed motor is fixed to the bottom wall of the protective shell. A drive gear is fixedly sleeved on the outer wall of the output end of the fixed motor. A driven gear is meshed with one side of the drive gear. The driven gear is fixedly sleeved on the outer wall of the vertical tube.

[0013] Furthermore, the top and bottom walls of the protective shell are provided with guide holes and threaded holes on both sides. The stepper motor is fixed to the bottom of the vacuum electron beam furnace by screws. The output end of the stepper motor is connected to a steering gear. Both ends of the steering gear are connected to a reducer through a rotating shaft. The top output ends of the two reducers are connected to threaded rods through a coupling. The tops of the two threaded rods pass through threaded holes and are threaded together.

[0014] Furthermore, guide rods are inserted through both guide holes, and the top ends of both guide rods and the threaded rod are connected to mounting blocks that are fixed to the inner wall of the vacuum electron beam furnace.

[0015] Furthermore, the cooling copper sleeve is made of oxygen-free copper, the cooling partition and the outer shell are made of stainless steel, and the two are welded by electron beam. The height difference between the water outlet pipe and the water inlet pipe is 3mm.

[0016] In summary, the present invention has the following advantages: by adopting a nested layered structure of cooling copper sleeve, cooling partition sleeve and outer shell, and with the first spiral guide groove on the outer wall of the cooling copper sleeve and the second spiral guide groove on the outer wall of the cooling partition sleeve, a continuous and efficient cooling water flow path is constructed. Combined with the turbulent heat transfer effect formed by the 3mm height difference between the inlet and outlet, the cooling uniformity of the metal ingot is significantly improved, and uneven shrinkage caused by the difference in cooling rate between the upper and lower shells is avoided. This eliminates shape defects such as double taper and multi-taper ingots from the source, and significantly improves the ingot forming quality and the convenience of subsequent processing.

[0017] Furthermore, the ingot dragging mechanism can stably position the ingot, avoiding uneven cooling caused by ingot displacement during the casting process. At the same time, the serpentine bend tube enables synchronous cooling, preventing local overheating of the ingot dragging mechanism from affecting the ingot quality. Combined with the drive component, it realizes a dual motion mode of ingot rotation and downward movement, effectively avoiding the ingot cracking problem in traditional casting in a vacuum environment.

[0018] Meanwhile, the oxygen-free copper and stainless steel components are seamlessly connected by electron beam welding, which not only ensures high heat exchange efficiency but also enhances the overall structural strength. This method is particularly suitable for continuous casting of long round ingots of high-purity metals such as titanium and copper. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram showing the disassembled layered spiral cooling pipe of the present invention.

[0021] Figure 3 This is a schematic diagram of the oblique axis side of the outer casing of the present invention.

[0022] Figure 4 This is a schematic diagram of the inclined axis of the cooling spacer of the present invention.

[0023] Figure 5 This is a schematic diagram of the drag mechanism of the present invention.

[0024] Figure 6 This is a bottom view of the cooling plate of the present invention.

[0025] Figure 7 This is a cross-sectional schematic diagram of the connecting block of the present invention.

[0026] Figure 8 This is a schematic front cross-sectional view of the protective shell of the present invention.

[0027] Figure Descriptions: 1. Layered spiral cooling pipe; 101. Cooling copper sleeve; 1011. First spiral guide groove; 102. Cooling partition; 1021. Second spiral guide groove; 1022. Water inlet pipe; 103. Outer shell; 1031. Water outlet pipe; 2. Ingot dragging mechanism; 3. Motion component; 301. Ingot dragging plate; 3011. Slot; 302. Cooling plate; 3021. Serpentine bend; 303. Base plate; 304. Connecting block; 3041. Inlet... Water tank; 3042, water supply through hole; 3043, water outlet through hole; 4, protective shell; 401, baffle; 402, guide hole; 403, threaded hole; 404, rotary water connector; 405, support block; 5, drive assembly; 501, fixed motor; 5011, drive gear; 502, driven gear; 503, threaded rod; 504, reducer; 505, stepper motor; 506, steering gear; 507, guide rod; 6, vertical pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of the present invention will now be described.

[0030] In this embodiment, please refer to Figures 1-8As shown, a vacuum electron beam furnace crystallizer device includes a vacuum electron beam furnace and a layered spiral cooling pipe 1 installed inside the vacuum electron beam furnace. The layered spiral cooling pipe 1 consists of a cooling copper sleeve 101, a cooling partition sleeve 102, a shell 103, and a dragging mechanism 2. The cooling partition sleeve 102 is fitted outside the cooling copper sleeve 101, and the shell 103 is fitted outside the cooling partition sleeve 102. The cooling copper sleeve 101 is made of oxygen-free copper, and the cooling partition sleeve 102 and the shell 103 are made of stainless steel. The two are welded together by electron beam welding, which ensures both structural sealing and strength, and avoids heat exchange efficiency loss caused by the connection of different materials. It is particularly suitable for continuous casting of long round ingots of high-purity metals such as titanium and copper. The dragging mechanism 2 is movably mounted on the cooling copper sleeve 101. In section 01, the outer wall of the cooling copper sleeve 101 is provided with a first spiral guide groove 1011 along the axis, and the outer wall of the cooling partition 102 is provided with a second spiral guide groove 1021 along the axis. A notch is opened on one side of the top of the cooling partition 102. The first spiral guide groove 1011 and the second spiral guide groove 1021 are connected through the notch to form a continuous cooling water flow path. A water inlet pipe 1022 is fixed at the bottom of the outer wall of the cooling partition 102. The water inlet pipe 1022 is connected to the first spiral guide groove 1011. The bottom of the outer wall of the outer shell 103 is connected to the water outlet pipe 1031 on the side away from the water inlet pipe 1022. The water outlet pipe 1031 is connected to the second spiral guide groove 1021. The height difference between the water outlet pipe 1031 and the water inlet pipe 1022 is 3mm.

[0031] The ingot dragging mechanism 2 is used to control the ingot body to rotate and move downward at a uniform speed within the cooling copper sleeve 101. The ingot dragging mechanism 2 consists of a motion component 3, a protective shell 4, a drive component 5, and a vertical pipe 6. The protective shell 4 is located below the layered spiral cooling pipe 1. The motion component 3 is connected to the protective shell 4 through the vertical pipe 6. The drive component 5 is located below the protective shell 4 and is used to control the upward movement of the protective shell 4 and the rotation of the vertical pipe 6. The motion component 3 is used to drive the ingot body to move and conduct heat.

[0032] The start drive component 5 moves upward in the control protective shell 4, and simultaneously drives the vertical pipe 6 and the motion component 3 to rise until the upper surface of the drag plate 301 is flush with the bottom outlet of the cooling copper sleeve 101. The titanium metal raw material preheated to 800°C is placed into the cooling copper sleeve 101. The raw material falls into the isosceles trapezoidal slot 3011 of the drag plate 301. The inclined surface of the slot 3011 can automatically center the raw material to prevent it from deviating.

[0033] Next, close the vacuum electron beam furnace door, start the furnace vacuum system, and extract the air inside the furnace to a vacuum level that meets the requirements for high-purity metal casting (usually not higher than 1×10⁻³Pa). This vacuum environment is maintained throughout the casting process to prevent the metal ingot from oxidizing due to contact with air at high temperatures and to ensure the purity of the metal.

[0034] Then, the external water supply is turned on, allowing the cooling water to enter the bottom of the cooling sleeve 102 through the inlet pipe 1022, flow upward along the first spiral guide groove 1011, form a spiral cooling flow on the outer layer of the cooling copper sleeve 101, fully absorb the heat transferred by the metal ingot, and then enter the second spiral guide groove 1021 through the notch at the top of the cooling sleeve 102, flow downward along the guide groove, and finally be discharged from the outlet pipe 1031.

[0035] The drive assembly 5 is restarted and the protective shell 4 is moved downward. The vertical pipe 6 and the motion assembly 3 move downward accordingly. The downward movement speed is controlled at 2 mm / min to ensure that the titanium metal raw material is gradually cooled and formed in the cooling copper sleeve 101 to form a continuous elongated ingot. During this process, some cooling water enters the vertical pipe 6 through the rotating water connector 404 and flows upward to assist in cooling the ingot body on the motion assembly 3, preventing the drag plate 301 from deforming due to prolonged contact with high-temperature raw materials. Finally, the cooling water flows back to the external water treatment system.

[0036] Once the ingot length reaches the preset value, the drive assembly 5 is turned off to stop the ingot rotation; then the heating system of the vacuum electron beam furnace is turned off, and the cooling water circulation is maintained for 30 minutes. After the ingot temperature drops below 200°C, the cooling water supply valve is turned off; the vacuum system vent valve is activated to restore the furnace pressure to atmospheric pressure, the furnace door is opened, and the drive assembly 5 is driven again to move the protective shell 4, the moving assembly 3, and the formed titanium elongated ingot upwards until the ingot is completely separated from the cooling copper sleeve 101. Finally, the ingot is removed to complete the casting process.

[0037] This layered structure creates a continuous and efficient cooling water flow path. Combined with the turbulent heat transfer effect formed by the 3mm height difference between the inlet and outlet, it significantly improves the cooling uniformity of the metal ingot, avoids uneven shrinkage of the upper and lower shells due to differences in cooling rates, eliminates shape defects such as double taper and multi-taper ingots from the source, and significantly improves the ingot forming quality and the convenience of subsequent processing.

[0038] Furthermore, the ingot dragging mechanism 2 can stably position the ingot, avoiding uneven cooling caused by ingot displacement during the casting process. At the same time, the serpentine bend 3021 provides synchronous cooling to prevent local overheating of the ingot dragging mechanism 2 from affecting the quality of the ingot. Combined with the drive component 5, it realizes a dual motion mode of ingot rotation and downward movement, effectively avoiding the ingot cracking problem in traditional casting in a vacuum environment.

[0039] Please see Figure 1 , Figure 5 and Figure 8As shown, the motion component 3 includes a drag plate 301. The upper surface of the drag plate 301 has a slot 3011 with an isosceles trapezoidal cross section. The lower surface of the drag plate 301 is fixed with a cooling plate 302 by screws. The lower surface of the cooling plate 302 has a serpentine bend 3021. A base plate 303 is sealed and fixed below the cooling plate 302. A connecting block 304 is fixed on the lower surface of the base plate 303. A frustum-shaped water inlet groove 3041 is opened at the center of the lower surface of the connecting block 304. A water supply through hole 3042 is opened at the top of the water inlet groove 3041 inside the connecting block 304. A water outlet through hole 3043 is opened inside the other side of the connecting block 304. A connecting conduit is provided in the base plate 303 at the water supply through hole 3042 and the water outlet through hole 3043 respectively. A pipe connected to the water outlet through hole 3043 is provided outside the connecting block 304 and connected to an external water treatment system.

[0040] The bottom of the connecting block 304 is located at the water inlet trough 3041 and is connected to the vertical pipe 6 by bolt sealing. The upper surface of the protective shell 4 is fixed with a support block 405. The bottom end of the vertical pipe 6 extends out of the cooling copper sleeve 101 and passes through the support block 405 and the top wall of the protective shell 4 to the inside. The vertical pipe 6 and the support block 405 are connected by bearings. The long sides of both sides of the upper surface of the protective shell 4 are fixed with isosceles trapezoidal baffles 401. The bottom end of the vertical pipe 6 is fixed with a rotary water connector 404 by a flange. The bottom of the rotary water connector 404 passes through the bottom wall of the protective shell 4 to the outside and is connected to the external water supply source through a pipe.

[0041] The drive assembly 5 includes a fixed motor 501 and a stepper motor 505. The fixed motor 501 is fixed to the bottom wall of the protective shell 4. A drive gear 5011 is fixedly sleeved on the outer wall of the output end of the fixed motor 501. A driven gear 502 is meshed with one side of the drive gear 5011. The driven gear 502 is fixedly sleeved on the outer wall of the vertical tube 6. Guide holes 402 and threaded holes 403 are provided on both sides of the top and bottom walls of the protective shell 4. The stepper motor 505 is fixed to the vacuum electron beam by screws. At the bottom of the furnace, the output end of the stepper motor 505 is connected to a diverter 506. Both ends of the diverter 506 are connected to a reducer 504 via a rotating shaft. The top output ends of the two reducers 504 are connected to threaded rods 503 via couplings. The tops of the two threaded rods 503 pass through threaded holes 403 and are threaded together. Guide rods 507 are inserted into the two guide holes 402. The tops of the two guide rods 507 and the threaded rods 503 are connected to mounting blocks that are fixed to the inner wall of the vacuum electron beam furnace.

[0042] When the ingot dragging mechanism 2 moves the ingot body downward, the stepper motor 505 and the fixed motor 501 are started. The stepper motor 505 drives the reducers 504 on both sides to run through the steering gear 506. The reducers 504 drive the threaded rod 503 to rotate. Under the action of the threaded hole 403 and the threaded rod 503, the protective shell 4 moves downward along the guide rod 507, and simultaneously drives the vertical tube 6 and the connecting block 304 to move downward. The connecting block 304 drives the ingot dragging plate 301 to move downward. At this time, the fixed motor 501 drives the drive gear 50 11. Rotation: The drive gear 5011 drives the driven gear 502 to rotate. The driven gear 502 drives the vertical tube 6 to rotate. The vertical tube 6 synchronously drives the connecting block 304, the base plate 303, the cooling plate 302 and the drag plate 301 to rotate. The drag plate 301 drives the titanium metal raw material to rotate in the cooling copper sleeve 101, so that the raw material is heated evenly and avoids component segregation caused by local overheating. It forms a dual motion of rotation and downward movement, ensuring that the titanium metal raw material is gradually cooled and shaped in the cooling copper sleeve 101 to form a continuous elongated ingot.

[0043] During the downward rotation process, cooling water enters the vertical pipe 6 through the rotating water connector 404 and flows upward along the vertical pipe 6, entering the water inlet trough 3041 of the connecting block 304, and then enters the serpentine bend 3021 through the water supply hole 3042 to assist in cooling the drag plate 301 and prevent the drag plate 301 from deforming due to prolonged contact with high-temperature raw materials. Then, it is discharged from the water outlet 3043 into the water treatment system for cooling and then flows back to the water supply source.

[0044] The working principle of this invention is as follows:

[0045] Start the stepper motor 505, which drives the reducers 504 on both sides to run through the steering gear 506. The reducers 504 drive the threaded rod 503 to rotate. Under the cooperation of the threaded hole 403 and the threaded rod 503, the protective shell 4 moves upward along the guide rod 507, and simultaneously drives the vertical tube 6 and the connecting block 304 to move upward until the upper surface of the drag plate 301 is flush with the bottom outlet of the cooling copper sleeve 101. The titanium metal raw material preheated to 800°C is placed into the cooling copper sleeve 101. The raw material falls into the isosceles trapezoidal slot 3011 of the drag plate 301. The inclined surface of the slot 3011 can automatically center the raw material and prevent the raw material from deviating.

[0046] Next, close the vacuum electron beam furnace door, start the furnace vacuum system, and extract the air inside the furnace to a vacuum level that meets the requirements for high-purity metal casting (usually not higher than 1×10⁻³Pa). This vacuum environment is maintained throughout the casting process to prevent the metal ingot from oxidizing due to contact with air at high temperatures and to ensure the purity of the metal.

[0047] Then, the external water supply is turned on, allowing the cooling water to enter the bottom of the cooling sleeve 102 through the inlet pipe 1022, flow upward along the first spiral guide groove 1011, form a spiral cooling flow on the outer layer of the cooling copper sleeve 101, fully absorb the heat transferred by the metal ingot, and then enter the second spiral guide groove 1021 through the notch at the top of the cooling sleeve 102, flow downward along the guide groove, and finally be discharged from the outlet pipe 1031.

[0048] Then, the stepper motor 505 and the fixed motor 501 are restarted. The stepper motor 505 reverses and controls the drag plate 301 to move downward. At this time, the fixed motor 501 drives the drive gear 5011 to rotate. The drive gear 5011 drives the driven gear 502 to rotate. The driven gear 502 drives the vertical tube 6 to rotate. The vertical tube 6 synchronously drives the connecting block 304, the bottom plate 303, the cooling plate 302 and the drag plate 301 to rotate. The drag plate 301 drives the titanium metal raw material to rotate in the cooling copper sleeve 101, so that the raw material is heated evenly and avoids component segregation caused by local overheating. It forms a dual motion of rotation and downward movement, ensuring that the titanium metal raw material is gradually cooled and shaped in the cooling copper sleeve 101 to form a continuous elongated ingot.

[0049] During the downward rotation process, cooling water enters the vertical pipe 6 through the rotating water connector 404 and flows upward along the vertical pipe 6 into the water inlet 3041 of the connecting block 304. It then enters the serpentine bend 3021 through the water supply hole 3042 to assist in cooling the drag plate 301 and prevent the drag plate 301 from deforming due to prolonged contact with high-temperature raw materials. Finally, it is discharged from the water outlet hole 3043 into the water treatment system for cooling and then flows back to the water supply source.

[0050] Once the ingot length reaches the preset value, the drive assembly 5 is turned off to stop the ingot rotation. Then, the heating system of the vacuum electron beam furnace is turned off, and the cooling water circulation is maintained for 30 minutes. After the ingot temperature drops below 200°C, the cooling water supply valve is turned off. The vacuum system vent valve is activated to restore the furnace pressure to atmospheric pressure. The furnace door is opened, and the stepper motor 505 is driven again to move the protective shell 4, the motion assembly 3, and the formed titanium elongated ingot upwards until the ingot is completely separated from the cooling copper sleeve 101. Finally, the ingot is removed to complete the casting process.

[0051] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A vacuum electron beam furnace crystallizer device, comprising a vacuum electron beam furnace and a layered spiral cooling pipe (1) installed inside the vacuum electron beam furnace, the layered spiral cooling pipe (1) is composed of a cooling copper sleeve (101), a cooling isolation sleeve (102), an outer shell (103) and a ingot dragging mechanism (2), the cooling isolation sleeve (102) is sleeved outside the cooling copper sleeve (101), the outer shell (103) is sleeved outside the cooling isolation sleeve (102), and the ingot dragging mechanism (2) is movably arranged in the cooling copper sleeve (101), characterized in that, The outer wall of the cooling copper sleeve (101) is provided with a first spiral guide groove (1011) along the axis, the outer wall of the cooling spacer sleeve (102) is provided with a second spiral guide groove (1021) along the axis, the top side of the cooling spacer sleeve (102) is provided with an opening, the first spiral guide groove (1011) and the second spiral guide groove (1021) are connected through the opening, the outer wall of the cooling spacer sleeve (102) is fixed with a water inlet pipe (1022) at the bottom, the water inlet pipe (1022) is connected with the first spiral guide groove (1011), the outer wall of the shell (103) is connected with a water outlet pipe (1031) at the bottom away from the water inlet pipe (1022), and the water outlet pipe (1031) is connected with the second spiral guide groove (1021). The drag mechanism (2) is used for controlling the rotation and uniform downward movement of the ingot body in the cooling copper sleeve (101), and the drag mechanism (2) is composed of a movement assembly (3), a protective shell (4), a driving assembly (5) and a vertical pipe (6). The protective shell (4) is located below the layered spiral cooling pipe (1), the movement assembly (3) is connected with the protective shell (4) through the vertical pipe (6), the driving assembly (5) is located below the protective shell (4) and is used for controlling the upward movement of the protective shell (4) and the rotation of the vertical pipe (6), and the movement assembly (3) is used for driving the movement of the ingot body and conducting heat.

2. A vacuum electron beam furnace crystallizer apparatus according to claim 1, wherein, The movement assembly (3) comprises a drag plate (301), the upper surface of the drag plate (301) is provided with a clamping groove (3011) with an isosceles trapezoidal cross section, the lower surface of the drag plate (301) is fixed with a cooling plate (302) through screws, the lower surface of the cooling plate (302) is provided with a serpentine bend pipe (3021), the lower surface of the cooling plate (302) is fixedly connected with a bottom plate (303), and the lower surface of the bottom plate (303) is fixedly connected with a connecting block (304).

3. A vacuum electron beam furnace crystallizer apparatus as defined in claim 2, characterized in that The lower surface of the connecting block (304) is provided with a circular truncated cone-shaped water inlet groove (3041) at the center, the inside of the connecting block (304) is provided with a water supply through hole (3042) at the top of the water inlet groove (3041), and the other side of the connecting block (304) is provided with a water outlet through hole (3043). The bottom plate (303) is provided with a water inlet pipe (1022) and a water outlet pipe (1031) at the water supply through hole (3042) and the water outlet through hole (3043) respectively.

4. A vacuum electron beam furnace crystallizer apparatus as defined in claim 3, wherein, The bottom of the connecting block (304) is connected with the vertical pipe (6) through bolts at the water inlet groove (3041), the upper surface of the protective shell (4) is fixedly connected with a supporting block (405), the bottom end of the vertical pipe (6) extends out of the cooling copper sleeve (101) and penetrates through the supporting block (405) and the top wall of the protective shell (4) to extend to the inside, and the vertical pipe (6) and the supporting block (405) are connected through a bearing.

5. A vacuum electron beam furnace crystallizer apparatus as defined in claim 1, wherein, The upper surface of the protective shell (4) is fixed with isosceles trapezoidal baffle (401) on both sides, the bottom end of the vertical pipe (6) is fixed with rotating water joint (404) through flange, the bottom of the rotating water joint (404) extends to the outside through the bottom wall of the protective shell (4) and is connected with external water supply through pipeline.

6. A vacuum electron beam furnace crystallizer apparatus as defined in claim 1, wherein, The driving assembly (5) comprises fixed motor (501) and stepping motor (505), the fixed motor (501) is fixed on the bottom wall of the protective shell (4), the output end outer wall of the fixed motor (501) is fixedly provided with driving gear (5011), one side of the driving gear (5011) is engagedly connected with driven gear (502), the driven gear (502) is fixedly provided on the outer wall of the vertical pipe (6).

7. A vacuum electron beam furnace crystallizer apparatus as defined in claim 6, characterized in that The top wall and the bottom wall of the protective shell (4) are provided with guide hole (402) and screw hole (403) on both sides, the stepping motor (505) is fixed on the bottom of the vacuum electron beam furnace through screw, the output end of the stepping motor (505) is connected with steering gear (506), both ends of the steering gear (506) are connected with speed reducer (504) through rotating shaft, the top output end of the two speed reducers (504) is connected with threaded rod (503) through coupling, the top of the two threaded rods (503) penetrates the screw hole (403) and is screw-connected.

8. A vacuum electron beam furnace crystallizer apparatus as defined in claim 7, characterized in that The two guide holes (402) are provided with guide rod (507), the top of the two guide rods (507) and the threaded rod (503) is connected with mounting block fixed on the inner wall of the vacuum electron beam furnace.

9. A vacuum electron beam furnace crystallizer apparatus as defined in claim 1, wherein, The cooling copper sleeve (101) is made of oxygen-free copper, the cooling spacer sleeve (102) and the shell (103) are made of stainless steel, and the two are welded by electron beam, the height difference between the water outlet pipe (1031) and the water inlet pipe (1022) is 3mm.

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