An upward crystallizer with an anti-oxidation device

Abstract

The present invention relates to the field of metal production technology, and discloses an upward crystallizer with an anti-oxidation device, comprising: a crystallizer socket, which is used to connect to the upward movable position of the upward crystallization copper wire billet, and the crystallizer socket is located inside the crystallization silo, and the upper end of the crystallization silo is provided with a thermal insulation outer layer. The upward crystallizer with the anti-oxidation device is installed by arranging a graphite guide sealing sleeve 1 and a graphite guide sealing sleeve 2 inside the holes at the upper and lower ends of the thermal insulation inner layer. The shrinkage inner plate 1 arranged inside the graphite guide sealing sleeve 1 is used to reduce excessive leakage of nitrogen. The shrinkage arc plate and the movable arc plate arranged inside the graphite guide sealing sleeve 2 further limit the upward process of the copper wire billet to avoid leakage of nitrogen as the copper wire billet moves. The graphite guide sealing sleeve 1 and the graphite guide sealing sleeve 2 are effectively arranged to prevent oxidation of the metal during the crystallization process, reduce the generation of oxidized impurities, and thus improve the purity and quality of the crystallized product.

Description

Technical Field

[0001] The invention relates to the technical field of metal production, in particular to an upper-draw crystallizer with an anti-oxidation device. Background Art

[0002] In the processing and production of metal materials, upward crystallization technology is widely used. The upward crystallizer is a commonly used crystallization technology. Through a certain upward technique, the crystal growth of the material in the liquid phase is realized, thereby obtaining the desired crystal product. As a key equipment, the performance of the upward crystallizer directly affects the quality and production efficiency of the metal material. As one of the important means to obtain high-quality metal products, the upward crystallizer, in the traditional upward crystallization process, the metal liquid comes into contact with oxygen in the surrounding environment, and an oxidation reaction easily occurs, resulting in metal oxidation, thereby affecting the performance and quality of the metal material. The oxidation phenomenon not only reduces the purity and strength of the metal material, but may also cause surface defects and uneven internal structure. The current common method to prevent metal oxidation includes adding deoxidizers during the smelting process. There are still some defects in the use of this method, such as:

[0003] In existing anti-oxidation devices, vacuum melting technology is used or a protective gas atmosphere is set up around the crystallizer to achieve anti-oxidation treatment. Since it is difficult to achieve complete isolation of gas flow, there is still residual oxygen, which leads to oxidation problems. In terms of cooling the material, the commonly used water cooling method may lead to inaccurate temperature control, affecting the crystallization effect and quality. Impurities may be introduced during the water cooling process, further affecting the purity of the metal. During the rainy season, the air humidity increases, and the surface of the copper wire billet produced by the up-drawing process is easily oxidized to form red-purple and black oxide plates, which reduces customer satisfaction and affects the use of the copper wire billet in subsequent processes. At the same time, there are certain quality risks.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original copper wire billet production. Summary of the Invention

[0005] The purpose of the present invention is to provide an up-drawing crystallizer with an anti-oxidation device to solve the problem that the above-mentioned background technology proposes to use a protective gas atmosphere to achieve anti-oxidation treatment, but it is difficult to achieve complete isolation, and there is still residual oxygen leading to oxidation problems. Impurities may be introduced during the water cooling process, further affecting the purity of the metal. Moreover, during the rainy season, the air humidity increases, and the surface of the copper wire billet produced by the up-drawing process is easily oxidized to form red-purple and black oxide plates, which poses certain quality risks.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an upward-drawing crystallizer with an anti-oxidation device, comprising a crystallizer socket, which is used to connect to the upward-drawing active position of the upward-drawing crystallization copper wire billet, and the crystallizer socket is located inside a crystallization silo, an insulation outer layer is provided at the upper end of the crystallization silo, and an insulation inner layer is provided inside the insulation outer layer, and the crystallizer socket, the crystallization silo and the insulation outer layer are assembled to form the main structure of the upward-drawing crystallizer;

[0007] Material pipes are equidistantly arranged on the side walls of the crystallization silo, and a positioning plate is installed on the upper end of the crystallization silo, support frames are equidistantly arranged on the upper ends of the positioning plates, and the inner wall surface of the support frame is against the outer wall surface of the thermal insulation outer layer, a positioning bottom plate is installed on the bottom end of the thermal insulation outer layer, and a positioning top plate is installed on the top end of the thermal insulation outer layer, the thermal insulation outer layer and the thermal insulation inner layer are concentrically arranged, and an anti-oxidation component is provided inside the thermal insulation inner layer to prevent the wire billet entering the thermal insulation inner layer from being oxidized due to excessive contact with oxygen;

[0008] A graphite guide sealing sleeve is disposed in the circular hole at the bottom end of the thermal insulation inner layer. A shrinking inner plate is provided on the inner wall surface of the graphite guide sealing sleeve, and the shrinking inner plate is configured as a trumpet-shaped plate structure. The graphite guide sealing sleeve is aligned with the center line of the circular hole at the bottom end of the thermal insulation inner layer, and the top end of the thermal insulation inner layer is connected to the bottom end of the exhaust pipe, and the top end of the exhaust pipe passes through the positioning top plate.

[0009] A guide tube is installed in the circular hole at the upper end of the positioning top plate, the center line of the guide tube is aligned with the center line of the circular hole of the positioning top plate, and a partition cover is provided on the outside of the guide tube. A positioning frame is provided at the upper end of the positioning top plate, and the upper end of the positioning frame is penetrated by the bottom end of the partition cover, and the internal cross-section of the partition cover and the positioning frame forms an S-shaped flow channel.

[0010] The above technical solution is adopted to provide an oxygen-free environment for the copper wire billets during the production process, thereby avoiding oxidation during the production process of the copper wire billets.

[0011] Preferably, the center line of the crystallizer socket is aligned with the center line of the crystallization silo, and the top of the crystallization silo is engaged with the positioning plate.

[0012] The adoption of the technical solution facilitates the crystallizer socket to guide the upward crystallization activity of the copper wire billet.

[0013] Preferably, the positioning plate is penetrated by the thermal insulation outer layer and the positioning bottom plate, and the inner wall surface of the positioning plate is in contact with the outer wall surface of the thermal insulation outer layer.

[0014] By adopting the above technical solution, the positioning plate is matched with the outer layer of the thermal insulation layer to maintain stability and limit the installation.

[0015] Preferably, the anti-oxidation component comprises:

[0016] Nitrogen gas nozzles are arranged in three layers at equal intervals through the thermal insulation inner layer, and the nitrogen gas nozzles are arranged in an inclined manner;

[0017] Connecting rings are arranged in three layers at equal intervals between the outer and inner insulation layers, and the connecting rings are connected to the nitrogen gas nozzles;

[0018] an injection pipe connected to one side of the communication ring of the bottom layer;

[0019] A connecting pipe connected between the connecting rings and arranged inside the thermal insulation outer layer and the thermal insulation inner layer;

[0020] A second graphite guide sealing sleeve is arranged in the top opening of the thermal insulation outer layer, and the second graphite guide sealing sleeve is arranged in a T-shaped sleeve structure;

[0021] The second shrink inner plate has its bottom end butted against the inner wall surface of the second graphite guide sealing sleeve;

[0022] The contraction arc piece is arranged at the bottom end of the inner wall surface of the second upper end of the contraction inner plate, and the contraction arc piece is arranged in an inclined shape;

[0023] The movable arc piece is rotatably connected to the side wall of the contraction arc piece.

[0024] By adopting the above technical solution, the anti-oxidation component has an inner insulating layer filled with nitrogen to prevent oxygen from oxidizing the copper wire billet.

[0025] Preferably, a check valve is provided inside the nitrogen gas nozzle, and the nitrogen gas nozzle is a pipeline structure made of a low-temperature resistant metal material.

[0026] By adopting the above technical solution, a check valve provided through the nitrogen injection nozzle prevents nitrogen from flowing back into the nozzle.

[0027] Preferably, the communicating ring and the communicating pipe are arranged in a vertical direction, and the communicating pipe is connected with three layers of communicating rings.

[0028] By adopting the above technical solution, as the connecting ring and the connecting pipe are arranged in a three-dimensional vertical direction, it is convenient to fill the thermal insulation inner layer with nitrogen.

[0029] Preferably, the connecting ring and the connecting pipe are both located between the thermal insulation outer layer and the thermal insulation inner layer, and the injection pipe connected to one side of the connecting ring at the bottom layer passes through the thermal insulation outer layer.

[0030] By adopting the above technical solution, as the connecting ring and the connecting pipe are connected, the nitrogen can flow to the outside and be discharged easily.

[0031] Preferably, a one-way valve is provided inside the injection pipe, and the injection pipe and the connecting pipe are symmetrically arranged.

[0032] By adopting the above technical solution, the one-way valve provided inside the injection pipe prevents nitrogen from flowing back and overflowing outward.

[0033] Preferably, the second top end of the shrinking inner plate is aligned with the second top end of the graphite guide sealing sleeve, and the second graphite guide sealing sleeve passes through the top end of the positioning top plate.

[0034] By adopting the above technical solution, two graphite guide sealing sleeves and two shrinkage inner plates are installed to reduce nitrogen leakage.

[0035] Preferably, the contraction arc piece and the movable arc piece are in an annular structure, and the movable arc piece and the contraction arc piece.

[0036] By adopting the above technical solution, a ring structure is formed by the contraction arc piece and the movable arc piece to gather the copper wire billet and lead it out of the environment to avoid nitrogen overflow.

[0037] Compared with the prior art, the present invention has the following beneficial effects: the upper crystallizer with an anti-oxidation device:

[0038] 1. During use, a graphite guide sealing sleeve 1 and a graphite guide sealing sleeve 2 are installed inside the holes at the upper and lower ends of the thermal insulation inner layer. The shrinkage inner plate 1 arranged inside the graphite guide sealing sleeve 1 is used to reduce excessive leakage of nitrogen. The shrinkage arc piece and the movable arc piece arranged inside the graphite guide sealing sleeve 2 further limit the leakage of nitrogen as the copper wire billet moves during the upward drawing process. As the movable arc piece moves and turns to fit the copper wire billet, the movement is converged. As the graphite guide sealing sleeve 1 and the graphite guide sealing sleeve 2 are set, the oxidation of the metal during the crystallization process is effectively prevented, the generation of oxidized impurities is reduced, thereby improving the purity and quality of the crystallized product and making it have more excellent physical and chemical properties. The setting of the anti-oxidation component can ensure that the crystallization process is carried out in a relatively stable environment, reduce the interference of external factors on crystallization, and improve the stability and repeatability of the process.

[0039] 2. The nitrogen air nozzle, connecting ring, injection pipe and connecting pipe passing through the anti-oxidation component form a three-dimensional nitrogen pipeline structure. The one-way valve installed inside the nitrogen air nozzle and the injection pipe effectively prevents backflow and leakage. With the setting of the injection pipe, low-temperature nitrogen is quickly filled into the connecting ring and the connecting pipe. Since the connecting ring and the connecting pipe are located between the thermal insulation outer layer and the thermal insulation inner layer, they cool the internal copper wire billet. Since nitrogen is lighter than air, all the humid air in the cooling chamber can be discharged to form a nitrogen isolation protection range, avoiding high-temperature oxidation of the wire billet to form plates. The stable crystallization process reduces production interruptions and failures caused by oxidation, and helps to achieve continuous and efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0041] Figure 2 This is a schematic diagram of the overall internal side sectional three-dimensional structure of the present invention;

[0042] Figure 3 This is a schematic diagram of the overall internal three-dimensional structure of the present invention;

[0043] Figure 4 This is a schematic diagram of the three-dimensional structure of the thermal insulation inner layer and the thermal insulation outer layer separated from each other in the present invention;

[0044] Figure 5 This is a schematic diagram of the side-sectional three-dimensional structure of the thermal insulation outer layer and the thermal insulation inner layer installed in the present invention;

[0045] Figure 6 This is a schematic diagram of the three-dimensional structure of the support frame and the positioning frame of the present invention;

[0046] Figure 7 This is a schematic diagram of the three-dimensional structure of the thermal insulation inner layer and the second graphite guide sealing sleeve installed in the present invention;

[0047] Figure 8 This is a schematic diagram of the three-dimensional structure of the support frame and the thermal insulation inner layer separated according to the present invention;

[0048] Figure 9 This is a schematic diagram of the three-dimensional structure of the positioning plate and the connecting ring installed in the present invention;

[0049] Figure 10 This is a schematic diagram of the split three-dimensional structure of the second graphite guide sealing sleeve and the second shrinkage inner plate of the present invention.

[0050] In the figure: 1. Crystallizer socket; 2. Crystallization silo; 3. Material pipe; 4. Positioning plate; 5. Support frame; 6. Insulation outer layer; 7. Positioning bottom plate; 8. Insulation inner layer; 9. Graphite guide sealing sleeve 1; 10. Contraction inner plate 1; 11. Nitrogen injection nozzle; 12. Connecting ring; 13. Injection pipe; 14. Connecting pipe; 15. Positioning top plate; 16. Graphite guide sealing sleeve 2; 17. Contraction inner plate 2; 18. Contraction arc plate; 19. Movable arc plate; 20. Guide pipe; 21. Separation cover; 22. Positioning frame; 23. Exhaust pipe. DETAILED DESCRIPTION

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0052] See also Figure 1-10The present invention provides a technical solution: a top-drawing crystallizer with an anti-oxidation device, comprising a crystallizer socket 1, a crystallization silo 2, a material pipe 3, a positioning plate 4, a support frame 5, a thermal insulation outer layer 6, a positioning bottom plate 7, a thermal insulation inner layer 8, a graphite guide sealing sleeve 9, a shrinking inner plate 10, a nitrogen gas nozzle 11, a connecting ring 12, an injection pipe 13, a connecting pipe 14, a positioning top plate 15, a second graphite guide sealing sleeve 16, a second shrinking inner plate 17, a shrinking arc piece 18, a movable arc piece 19, a guide pipe 20, a separation cover 21, a positioning frame 22, and an exhaust pipe 23;

[0053] Among them, the crystallizer socket 1 is used to connect to the upper active position of the upper crystallization copper wire billet, and the crystallizer socket 1 is located inside the crystallization silo 2, the upper end of the crystallization silo 2 is provided with an insulation outer layer 6, and the insulation outer layer 6 is provided with an insulation inner layer 8. The crystallizer socket 1, the crystallization silo 2 and the insulation outer layer 6 are assembled to form the main structure of the upper crystallizer;

[0054] The center line of the crystallizer socket 1 is aligned with the center line of the crystallization silo 2, and the top of the crystallization silo 2 is engaged with the positioning plate 4, the positioning plate 4 is penetrated by the thermal insulation outer layer 6 and the positioning bottom plate 7, and the inner wall surface of the positioning plate 4 is in contact with the outer wall surface of the thermal insulation outer layer 6;

[0055] Material pipes 3 are equidistantly arranged on the side walls of the crystallization silo 2, and a positioning plate 4 is installed on the upper end of the crystallization silo 2. A support frame 5 is equidistantly arranged on the upper end of the positioning plate 4, and the inner wall surface of the support frame 5 is in contact with the outer wall surface of the thermal insulation outer layer 6. A positioning bottom plate 7 is installed at the bottom end of the thermal insulation outer layer 6, and a positioning top plate 15 is installed at the top end of the thermal insulation outer layer 6. The thermal insulation outer layer 6 and the thermal insulation inner layer 8 are concentrically arranged, and an anti-oxidation component is provided inside the thermal insulation inner layer 8 to prevent the wire billet entering the thermal insulation inner layer 8 from being oxidized due to excessive contact with oxygen;

[0056] A graphite guide sealing sleeve 9 is disposed in the circular hole at the bottom end of the thermal insulation inner layer 8. A contraction inner plate 10 is disposed on the inner wall of the graphite guide sealing sleeve 9, and the contraction inner plate 10 is configured as a trumpet-shaped plate structure. The graphite guide sealing sleeve 9 is aligned with the center line of the circular hole at the bottom end of the thermal insulation inner layer 8. The top end of the thermal insulation inner layer 8 is connected to the bottom end of the exhaust pipe 23, and the top end of the exhaust pipe 23 passes through the positioning top plate 15.

[0057] The guide tube 20 is mounted on the circular hole at the upper end of the positioning top plate 15 and docked therewith. The centerline of the guide tube 20 is aligned with the centerline of the circular hole of the positioning top plate 15. A separator 21 is sheathed on the outer surface of the guide tube 20. A positioning frame 22 is provided on the upper end of the positioning top plate 15. The upper end of the positioning frame 22 is penetrated by the lower end of the separator 21. The internal cross-section of the separator 21 and the positioning frame 22 form an S-shaped flow channel.

[0058] Combined with the drawings in the specification Figure 1-10As shown, the crystallizer socket 1 is located at the bottom end of the positioning base plate 7 and is installed at the bottom end of the insulation outer layer 6. The insulation outer layer 6 and the positioning base plate 7 provide a limit for the installation of the insulation inner layer 8, so that the crystallizer socket 1 is docked with the crystallization silo 2. Figure 2-4 As shown, the top opening of the crystallization silo 2 is positioned with the positioning plate 4 provided on the outer wall of the thermal insulation outer layer 6, the U-shaped structure provided at the top of the positioning plate 4 supports the injection pipe 13, and the support frame 5 provided at the top of the positioning plate 4 further supports the thermal insulation outer layer 6. When in use, the material pipe 3 supplies copper liquid to the inside of the crystallization silo 2, which is convenient for the upper crystallization of the copper wire billet and the output of copper crystals. A positioning top plate 15 is provided at the upper end of the thermal insulation inner layer 8 sleeved outside the thermal insulation outer layer 6 to maintain the sealing structure between the thermal insulation outer layer 6 and the thermal insulation inner layer 8, and the circular hole at the top of the positioning top plate 15 is consistent with the guide tube 20, as shown Figure 2-4 As shown, the guide tube 20 and the separation cover 21 are arranged to guide the crystallized copper wire billet to rise and output, and the low-temperature nitrogen overflowing at the connection between the guide tube 20 and the positioning top plate 15 is arranged to prevent the low-temperature nitrogen from directly leaking out and causing low-temperature damage to the workers. The exhaust pipe 23 arranged on one side of the positioning top plate 15 is convenient for extracting and replacing the nitrogen inside the insulation inner layer 8 to the outside. The one-way valve arranged at the top of the exhaust pipe 23 prevents the nitrogen from leaking out, reduces the exhaust gas emission during the oxidation process, reduces the pollution to the environment, and conforms to the environmental protection development trend of modern industry.

[0059] Anti-oxidation components include:

[0060] The nitrogen gas nozzles 11 are arranged in three layers at equal intervals through the thermal insulation inner layer 8, and are arranged in an inclined manner. A check valve is provided inside the nitrogen gas nozzles 11, and the nitrogen gas nozzles 11 are a pipeline structure made of a low-temperature resistant metal material;

[0061] The connecting rings 12 are arranged in three layers equidistantly between the insulating outer layer 6 and the insulating inner layer 8, and the connecting rings 12 are connected to the nitrogen gas nozzle 11. The connecting rings 12 and the connecting pipe 14 are arranged in a vertical direction, and the connecting pipe 14 connects the three layers of connecting rings 12. The connecting rings 12 and the connecting pipe 14 are all located between the insulating outer layer 6 and the insulating inner layer 8, and the injection pipe 13 connected to one side of the bottom connecting ring 12 passes through the insulating outer layer 6;

[0062] An injection pipe 13 is connected to one side of the connecting ring 12 of the bottom layer. A one-way valve is provided inside the injection pipe 13, and the injection pipe 13 and the connecting pipe 14 are symmetrically arranged.

[0063] A connecting pipe 14 is connected between the connecting rings 12 and is disposed inside the thermal insulation outer layer 6 and the thermal insulation inner layer 8;

[0064] The second graphite guide sealing sleeve 16 is arranged in the top opening of the thermal insulation outer layer 6, and the second graphite guide sealing sleeve 16 is configured as a T-shaped sleeve structure;

[0065] The bottom end of the second shrink inner plate 17 abuts against the inner wall of the second graphite guide sealing sleeve 16, and the top end of the second shrink inner plate 17 is aligned with the top end of the second graphite guide sealing sleeve 16, and the second graphite guide sealing sleeve 16 passes through the top end of the positioning top plate 15;

[0066] The contraction arc piece 18 is arranged at the bottom end of the inner wall surface of the upper end of the contraction inner plate 17, and the contraction arc piece 18 is arranged in an inclined shape. The contraction arc piece 18 and the movable arc piece 19 are annular structures, and the movable arc piece 19 and the contraction arc piece 18;

[0067] The movable arc piece 19 is rotatably connected to the side wall of the contraction arc piece 18;

[0068] Combined with the drawings in the specification Figure 1-10 As shown, the nitrogen gas nozzle 11 is set through the interior of the thermal insulation inner layer 8, and the connecting ring 12, injection pipe 13 and connecting pipe 14 are connected between the thermal insulation outer layer 6 and the thermal insulation inner layer 8. The low-temperature nitrogen is connected through the injection pipe 13 to enter the connecting ring 12 and the connecting pipe 14. The connecting pipe 14 is set with the nitrogen gas nozzle 11. A one-way valve is set inside the nitrogen gas nozzle 11 to prevent nitrogen from flowing back into the nitrogen gas nozzle 11. Figure 2-4 As shown, the nitrogen injection nozzle 11 is inclined, which facilitates the flow of low-temperature nitrogen into the insulating inner layer 8, discharges all the humid air inside the insulating inner layer 8, reduces the discharge of humid air and oxygen inside the insulating inner layer 8, and fills the insulating inner layer 8 with low-temperature dry nitrogen, reducing the erosion and damage of oxidation to the crystallizer itself, reducing the maintenance cost of the equipment, and extending its service life, so that the high-temperature wire billet enters the low-temperature environment from the graphite guide sealing sleeve 19 and the shrinkage inner plate 10, and is quickly cooled to avoid oxidation of the wire billet under high-temperature conditions. The shrinkage inner plate 2 17 arranged at the upper end of the graphite guide sealing sleeve 2 16 provides a convergence opening for the shrinkage arc plate 18 and the movable arc plate 19 to avoid direct discharge of low-temperature nitrogen, effectively preventing the oxidation of the metal during the crystallization process, and reducing the generation of oxidized impurities, thereby improving the purity and quality of the crystallized product and making it have better physical and chemical properties.

[0069] Working principle: When using the upward crystallizer with anti-oxidation device, first connect the crystallizer socket 1 with the crystallization silo 2, so that the crystallizer socket 1 and the positioning bottom plate 7 are matched to be located inside the crystallization silo 2, so that the internal wire billet passes through the internal hole of the crystallizer socket 1 and enters the thermal insulation inner layer 8. As the wire billet enters the thermal insulation inner layer 8, it passes through the graphite guide sealing sleeve 9 and the shrinkage inner plate 10. There is low-temperature nitrogen inside the thermal insulation inner layer 8, wherein the low-temperature nitrogen enters the connecting ring 12 through the injection pipe 13, and is connected to the connecting pipe 14 between the connecting rings 12, so that the low-temperature nitrogen is ejected from the nitrogen nozzle 11 into the thermal insulation inner layer 8, so that the nitrogen is filled in the thermal insulation inner layer 8. Since the specific gravity of nitrogen is higher than that of air, the low-temperature nitrogen in the thermal insulation inner layer 8 is 40%. The air is light, enters from the bottom and is discharged from the wire billet outlet, which can discharge all the humid air in the cooling chamber to form a nitrogen isolation protection range to prevent the wire billet from high-temperature oxidation to form plates. A circular hole is set at the top of the thermal insulation outer layer 6 to provide installation space for the graphite guide sealing sleeve 2 16. The shrinkage inner plate 2 17, the shrinkage arc piece 18 and the movable arc piece 19 arranged inside the graphite guide sealing sleeve 2 16 constitute a double-layer sealing and tightening structure, which can quickly cool the wire billet under low-temperature nitrogen to prevent oxidation of the wire billet under high-temperature conditions. With the setting of the guide pipe 20, the separation cover 21 and the positioning frame 22, the space at the upper end is extended to prevent the leakage of low-temperature nitrogen. The exhaust pipe 23 set at the upper end of the positioning top plate 15 is used to replace the gas inside the thermal insulation inner layer 8.

[0070] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An upward crystallizer with an anti-oxidation device, comprising: A crystallizer socket (1) is used for docking with the upper active position of the upper crystallization copper wire billet, and the crystallizer socket (1) is located inside the crystallization silo (2), the upper end of the crystallization silo (2) is provided with a thermal insulation outer layer (6), and the thermal insulation inner layer (8) is provided inside the thermal insulation outer layer (6), and the crystallizer socket (1), the crystallization silo (2) and the thermal insulation outer layer (6) are assembled to form the main structural part of the upper crystallizer; The invention is characterized in that: the side wall of the crystallization silo (2) is equidistantly provided with material tubes (3), and a positioning plate (4) is installed on the upper end of the crystallization silo (2), a support frame (5) is equidistantly provided on the upper end of the positioning plate (4), and the inner wall surface of the support frame (5) is against the outer wall surface of the thermal insulation outer layer (6), a positioning bottom plate (7) is installed at the bottom end of the thermal insulation outer layer (6), and a positioning top plate (15) is installed at the top end of the thermal insulation outer layer (6), the thermal insulation outer layer (6) and the thermal insulation inner layer (8) are concentrically arranged, and an anti-oxidation component is provided inside the thermal insulation inner layer (8) to prevent oxidation caused by excessive contact of the wire billet entering the thermal insulation inner layer (8) with oxygen; A graphite guide sealing sleeve (9) is arranged in the circular hole at the bottom end of the thermal insulation inner layer (8), and a shrinking inner plate (10) is provided on the inner wall surface of the graphite guide sealing sleeve (9), and the shrinking inner plate (10) is arranged to be a trumpet-shaped plate structure, and the graphite guide sealing sleeve (9) is aligned with the center line of the circular hole at the bottom end of the thermal insulation inner layer (8), and the top end of the thermal insulation inner layer (8) is connected to the bottom end of the exhaust pipe (23), and the top end of the exhaust pipe (23) passes through the positioning top plate (15); A guide tube (20) is mounted on the circular hole at the upper end of the positioning top plate (15) and docked therewith. The center line of the guide tube (20) is aligned with the center line of the circular hole of the positioning top plate (15), and a partition cover (21) is provided on the outside of the guide tube (20). A positioning frame (22) is provided on the upper end of the positioning top plate (15), and the upper end of the positioning frame (22) is penetrated by the bottom end of the partition cover (21), and the internal cross-sections of the partition cover (21) and the positioning frame (22) form an S-shaped flow channel.

2. The up-drawing crystallizer with an anti-oxidation device according to claim 1, characterized in that: The center line of the crystallizer socket (1) is aligned with the center line of the crystallization silo (2), and the top of the crystallization silo (2) is snap-connected with the positioning plate (4).

3. The up-drawing crystallizer with an anti-oxidation device according to claim 1, characterized in that: The positioning plate (4) is penetrated by the thermal insulation outer layer (6) and the positioning bottom plate (7), and the inner wall surface of the positioning plate (4) is in contact with the outer wall surface of the thermal insulation outer layer (6).

4. The up-drawing crystallizer with an anti-oxidation device according to claim 1, characterized in that: The anti-oxidation component comprises: Nitrogen gas jet nozzles (11) are arranged in three layers at equal intervals through the thermal insulation inner layer (8), and the nitrogen gas jet nozzles (11) are arranged in an inclined shape; A connecting ring (12) is provided in three layers at equal intervals between the thermal insulation outer layer (6) and the thermal insulation inner layer (8), and the connecting ring (12) is connected to the nitrogen gas injection nozzle (11); An injection pipe (13) connected to one side of the communication ring (12) of the bottom layer; A connecting pipe (14) connected between the connecting rings (12), and the connecting pipe (14) is arranged inside the thermal insulation outer layer (6) and the thermal insulation inner layer (8); A second graphite guide sealing sleeve (16) is arranged in the top opening of the thermal insulation outer layer (6), and the second graphite guide sealing sleeve (16) is arranged as a T-shaped sleeve structure; The bottom end of the second shrink inner plate (17) abuts against the inner wall of the second graphite guide sealing sleeve (16); A contraction arc piece (18) is arranged at the bottom end of the inner wall surface of the upper end of the second contraction inner plate (17), and the contraction arc piece (18) is arranged in an inclined shape; The movable arc piece (19) is rotatably connected to the side wall surface of the contraction arc piece (18).

5. The up-drawing crystallizer with an anti-oxidation device according to claim 4, characterized in that: A check valve is provided inside the nitrogen gas injection nozzle (11), and the nitrogen gas injection nozzle (11) is a pipeline structure made of a low-temperature resistant metal material.

6. The up-drawing crystallizer with an anti-oxidation device according to claim 4, characterized in that: The communication ring (12) and the communication pipe (14) are arranged in a vertical direction, and the communication pipe (14) is connected to the three layers of communication rings (12).

7. The up-drawing crystallizer with an anti-oxidation device according to claim 4, characterized in that: The communication ring (12) and the communication pipe (14) are both located between the thermal insulation outer layer (6) and the thermal insulation inner layer (8), and the injection pipe (13) connected to one side of the communication ring (12) at the bottom layer passes through the thermal insulation outer layer (6).

8. The up-drawing crystallizer with an anti-oxidation device according to claim 4, characterized in that: A one-way valve is provided inside the injection pipe (13), and the injection pipe (13) and the connecting pipe (14) are symmetrically arranged.

9. The up-drawing crystallizer with an anti-oxidation device according to claim 4, characterized in that: The top of the second shrinking inner plate (17) is aligned with the top of the second graphite guide sealing sleeve (16), and the second graphite guide sealing sleeve (16) passes through the top of the positioning top plate (15).

10. The up-drawing crystallizer with an anti-oxidation device according to claim 4, characterized in that: The contraction arc piece (18) and the movable arc piece (19) are in an annular structure, and the movable arc piece (19) and the contraction arc piece (18) are in an annular structure.

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