A continuous casting crystallizer for nonferrous metals

Abstract

The present invention provides a continuous casting crystallizer for non-ferrous metals, relating to the technical field of continuous casting crystallizers, comprising a main body base, a traction mechanism is provided on the right side of the upper end of the main body base, a smelting furnace is provided on the left side of the upper end of the main body base, a crystallizer assembly is provided on the circumferential surface of the smelting furnace, a connecting base is fixedly installed at the lower end of the crystallizer assembly, and the connecting base is installed on the main body base. In the present invention, the cross-sectional shape (circular or rectangular) of the continuous casting product can be quickly switched by sliding out the original mold cavity assembly and installing the corresponding mold (such as the rectangular through-hole design of the rectangular mold cavity assembly). In addition, the first baffle on the rectangular mold cavity assembly is fitted with the lower arc plate, and the second baffle is fitted with the spoiler baffle and the upper arc baffle, ensuring that the coolant channel matches the mold shape after replacement, avoiding a decrease in cooling efficiency due to mold replacement, significantly improving the adaptability of the equipment to the continuous casting of different profiles of non-ferrous metals such as copper and aluminum, and reducing the cost and time of production line changeover.

Description

Technical Field

[0001] The present invention belongs to the technical field of continuous casting crystallizers, and more specifically, relates to a continuous casting crystallizer for nonferrous metals. Background Art

[0002] The continuous casting mold is the core component of the continuous casting machine, often referred to as the "heart" of the equipment. It is a forced, water-cooled, bottomless ingot mold. Its primary function is to receive molten steel and cool and solidify it into a shell. It is used in the continuous casting of steel and nonferrous metals.

[0003] The current continuous casting mold has been found to have at least the following technical problems:

[0004] 1. Currently, most non-ferrous metal continuous casting molds have a fixed mold structure and can only produce billets of a single shape (such as round). Switching to a rectangular or other cross-sectional shape requires complete disassembly of the mold assembly, a cumbersome and time-consuming process that results in inefficient production line changeovers. Furthermore, the non-modular mold design makes it difficult to ensure compatibility between molds of varying shapes and the cooling system. This can lead to fluctuations in billet quality due to uneven cooling, limiting the equipment's application in diverse non-ferrous metal continuous casting scenarios.

[0005] 2. Traditional mold coolant channels are often smooth, which easily forms a laminar boundary layer during coolant flow, resulting in a low heat transfer coefficient. This is particularly true when continuously casting high-melting-point nonferrous metals (such as copper alloys), where heat from the liquid metal is difficult to quickly dissipate. This often leads to slow shell formation, uneven thickness, and even production accidents such as breakouts. Existing technologies lack effective turbulence-enhancing structures, making them unable to meet the cooling efficiency requirements of efficient continuous casting. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a continuous casting crystallizer for nonferrous metals to solve the above problems.

[0007] A continuous casting crystallizer for nonferrous metals, comprising a main body base, a traction mechanism is provided on the right side of the upper end of the main body base, a smelting furnace is provided on the left side of the upper end of the main body base, a crystallizer assembly is provided on the circumferential surface of the smelting furnace, a connecting base is fixedly installed on the lower end of the crystallizer assembly, the connecting base is installed on the main body base, the crystallizer assembly includes a crystallizer shell, a circular mold cavity component is slidably installed in the crystallizer shell, both side ends of the circular mold cavity component are provided with metal gaskets, and the separated ends of the two metal gaskets are provided with high-temperature resistant rubber rings. The right end of the crystallizer shell is connected to a locking ring sleeve through an internal thread, and the metal gasket and high-temperature resistant rubber ring on the right end are located between the locking ring sleeve and the crystallizer shell. An upper arc partition is provided in the crystallizer shell, and a lower arc plate is fixedly installed on the upper arc partition. The upper arc partition and the lower arc plate divide the space inside the crystallizer shell into two parts. The outer circumference of the upper arc partition and the lower arc plate is used for flowing air, and the inner circumference of the upper arc partition and the lower arc plate is used for flowing cooling liquid. An airflow heat dissipation mechanism is provided in the crystallizer assembly, and a water flow dividing mechanism is provided in the crystallizer assembly.

[0008] Preferably, the water flow dividing mechanism includes a spoiler baffle, which is fixedly mounted on the arc-shaped inner wall of the upper arc baffle, a trapezoidal hole is provided on the spoiler baffle, a cutting plate is fixedly mounted in the trapezoidal hole provided in the spoiler baffle, two first water holes are provided on the upper arc baffle, and a water inlet pipe and a water outlet pipe are fixedly mounted on the circumferential surface of the crystallizer shell, the water inlet pipe and the first water hole located above are both used for the intake of coolant, and the water outlet pipe and the first water hole located below are used for the discharge of coolant. A connecting block is fixedly mounted on the circumferential surface of the upper arc baffle, and the upper arc baffle is fixedly mounted on the inner wall of the crystallizer shell through the connecting block, the outer surface of the upper arc baffle has two raised portions, the two raised portions are tightly fitted with the inner wall of the crystallizer shell, and the space between the two raised portions can be sealed, and two fixed baffles are fixedly mounted on the inner surface of the upper arc baffle, and the two fixed baffles separate the two first water holes.

[0009] Preferably, the airflow heat dissipation mechanism includes an air inlet duct and an air outlet duct, wherein the air inlet duct is fixedly mounted below the crystallizer shell, and the air outlet duct is fixedly mounted above the crystallizer shell. An exhaust fan is provided in the air inlet duct, and both the air inlet duct and the air outlet duct are connected to the interior of the crystallizer shell. A support rod is fixedly mounted on the connecting base, and a secondary cooling duct is fixedly mounted on the support rod. The secondary cooling duct is connected to the air outlet duct, and an atomizer is fixedly mounted on the secondary cooling duct.

[0010] Preferably, a rectangular mold cavity assembly is slidably installed in the crystallizer shell, the mold shape of the rectangular mold cavity assembly is rectangular, a second baffle is fixedly installed on the rectangular mold cavity assembly, a first baffle is fixedly installed on the rectangular mold cavity assembly, two second water holes are opened through the rectangular mold cavity assembly, the two second water holes are located on both sides of the rectangular through hole on the rectangular mold cavity assembly, the second baffle is in contact with the spoiler baffle and the inner wall of the upper arc baffle, and the first baffle is in contact with the inner wall of the lower arc plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, a slidably installed circular mold cavity assembly and a rectangular mold cavity assembly are arranged in the crystallizer shell, and a metal gasket, a high-temperature resistant rubber ring and a threaded locking ring sleeve are used to form a detachable and replaceable mold structure. When it is necessary to produce non-ferrous metal billets of different shapes, it is only necessary to slide out the original mold cavity assembly and install the corresponding mold (such as the rectangular through-hole design of the rectangular mold cavity assembly) to quickly switch the cross-sectional shape (circular or rectangular) of the continuous casting product. In addition, the first baffle on the rectangular mold cavity assembly is fitted with the lower arc plate, and the second baffle is fitted with the spoiler baffle and the upper arc baffle, ensuring that the coolant channel matches the mold shape after replacement, avoiding a decrease in cooling efficiency due to mold replacement, significantly improving the adaptability of the equipment to the continuous casting of different profiles of non-ferrous metals such as copper and aluminum, and reducing the cost and time of production line changeover.

[0013] In the present invention, a water flow dividing mechanism consisting of a spoiler baffle, a cutting plate and a trapezoidal hole is provided in the crystallizer assembly to enhance the cooling effect of the coolant from multiple dimensions. The spoiler baffle is fixed to the arc-shaped inner wall of the upper arc baffle, and the trapezoidal hole opened therein is designed with a trapezoidal cross-section, so that violent turbulence is generated when the coolant flows through, thereby destroying the liquid boundary layer; the cutting plate in the trapezoidal hole further divides the coolant flow beam, increases the fluid disturbance frequency, and significantly improves the heat transfer coefficient. The two first water holes of the upper arc baffle are used as channels. After the coolant flows in from the water inlet pipe, high-intensity convective heat exchange is formed on the surface of the circular mold cavity assembly or the rectangular mold cavity assembly through the synergistic action of the spoiler baffle and the cutting plate, thereby accelerating the speed of blank shell formation.

[0014] In the present invention, a gradient cooling area is constructed by utilizing the spatial difference between the upper arc baffle and the lower arc plate and the mold cavity assembly (such as a circular mold cavity assembly) in the structural design. The upper arc baffle and the upper part of the mold cavity assembly form a larger space, the flow rate of the coolant in this area is reduced, and the turbulence intensity is enhanced. The heat of the liquid non-ferrous metal is quickly taken away by strong turbulent heat exchange, so that the upper shell is quickly and evenly solidified, avoiding uneven shell thickness due to local overheating; the lower arc plate and the lower part of the mold cavity assembly form a narrow space, and the coolant is compressed and accelerated when flowing through, and the solidified shell thickness is accurately controlled by high-speed laminar heat exchange, avoiding cracking of the shell due to excessive cooling. At the same time, the two raised parts on the outer surface of the upper arc baffle are tightly fitted with the inner wall of the crystallizer shell, and cooperate with the fixed baffle to separate the first water hole, ensuring that the flow paths of the coolant in the upper and lower areas are independent, further enhancing the gradient cooling effect.

[0015] In the present invention, an air inlet duct is provided below the crystallizer shell, an air outlet duct is provided above the crystallizer shell, and an exhaust fan is installed in the air inlet duct to construct an airflow heat dissipation channel from bottom to top. When the coolant flows outside the mold cavity assembly, the exhaust fan drives the external cold air into the crystallizer shell from the air inlet duct, and flows upward along the outer space of the upper arc partition plate and the lower arc plate, forming a counter-convection with the flow direction of the coolant (from top to bottom). This design can carry away the heat transferred to the crystallizer shell by the coolant through forced convection of air, thereby reducing the temperature rise of the coolant and indirectly improving its continuous cooling capacity. In addition, the air flow channel and the air flow around the mold cavity assembly form an air-liquid dual-medium cooling system, which can increase the solidification speed of non-ferrous metals compared with the single liquid cooling method, and is particularly suitable for continuous casting scenarios of high-melting-point non-ferrous metals.

[0016] In the present invention, the airflow heat dissipation mechanism is linked with the secondary cooling pipe, and the secondary cooling pipe that is connected to the air outlet pipe is installed on the support rod connected to the base, and is equipped with an atomizer to form a composite cooling medium mixed with hot air and droplets. When the billet enters the secondary cooling pipe from the outlet of the crystallizer assembly, the high-temperature airflow with low moisture content discharged from the air outlet pipe is mixed with the droplets sprayed by the atomizer. The droplets evaporate quickly in the hot airflow and absorb heat. At the same time, the hot airflow further takes away the heat from the surface of the billet through convection heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0018] Figure 2 Schematic diagram of the structure of the crystallizer shell of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the locking ring sleeve of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the circular mold cavity assembly of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the rectangular mold cavity assembly of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the water inlet pipe of the present invention;

[0023] Figure 7 Schematic diagram of the structure of the spoiler baffle of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the lower arc plate of the present invention.

[0025] In the figure, the correspondence between the component names and the drawing numbers is: 11. upper arc baffle; 12. connecting block; 13. fixed baffle; 14. first water hole; 15. lower arc plate; 16. water inlet pipe; 17. water outlet pipe; 18. air inlet pipe; 19. air outlet pipe; 21. spoiler baffle; 22. cutting plate; 23. trapezoidal hole; 24. rectangular mold cavity assembly; 25. first baffle; 26. second baffle; 27. second water hole; 31. circular mold cavity assembly; 32. metal gasket; 33. high temperature resistant rubber ring; 34. locking ring; 35. crystallizer shell; 41. secondary cooling pipe; 42. atomizer; 43. support rod; 44. connecting base; 45. exhaust fan; 51. traction mechanism; 52. main base; 53. crystallizer assembly; 54. melting furnace. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] See also Figures 1-8 The present invention provides a continuous casting crystallizer for non-ferrous metals, including a main body base 52, a traction mechanism 51 is provided on the right side of the upper end of the main body base 52, a smelting furnace 54 is provided on the left side of the upper end of the main body base 52, a crystallizer assembly 53 is provided on the circumferential surface of the smelting furnace 54, a connecting base 44 is fixedly installed at the lower end of the crystallizer assembly 53, the connecting base 44 is installed on the main body base 52, the crystallizer assembly 53 is communicated with the inside of the smelting furnace 54, the smelting furnace 54 is used to melt and refine non-ferrous metals, the crystallizer assembly 53 is connected to the smelting furnace 54 through a long water nozzle, and the position of the long water nozzle and the inlet of the crystallizer assembly 53 is sealed by expansion-compensating refractory mud, and the traction mechanism 51 is used to pull the solid non-ferrous metal coming out of the outlet of the crystallizer assembly 53 to make it move gradually outward.

[0028] Among them, the crystallizer assembly 53 includes a crystallizer shell 35, and a circular mold cavity component 31 is slidably installed in the crystallizer shell 35. Metal gaskets 32 are provided on both side ends of the circular mold cavity component 31, and the separated ends of the two metal gaskets 32 are provided with high-temperature resistant rubber rings 33. The metal gasket 32 ​​and the high-temperature resistant rubber ring 33 on the left side can seal the circular mold cavity component 31 and the inner wall of the crystallizer shell 35. The right end of the crystallizer shell 35 is connected to a locking ring sleeve 34 by a threaded internal rotation. The metal gasket 32 ​​and the high-temperature resistant rubber ring 33 on the right side are both located between the locking ring sleeve 34 and the crystallizer shell 35, and can seal the right side of the circular mold cavity component 31 at the same time. An upper arc partition 11 is provided in the crystallizer shell 35, and a lower arc plate 15 is fixedly installed on the upper arc partition 11. The upper arc partition 11 and the lower arc plate 15 divide the space inside the crystallizer shell 35 into two parts. The circumference of the upper arc partition 11 and the lower arc plate 15 The outside is used for flowing air, and the circumference of the upper arc baffle 11 and the lower arc plate 15 is used for flowing coolant. When the circular mold cavity assembly 31 is installed, the space between the lower arc plate 15 and the circular mold cavity assembly 31 is smaller than the space between the upper arc baffle 11 and the circular mold cavity assembly 31. When the coolant flows through the space between the upper arc baffle 11 and the circular mold cavity assembly 31, due to its larger space, it can generate stronger turbulence and higher heat exchange intensity, quickly capture liquid heat, and promote the liquid non-ferrous metal here to quickly form a strong and uniform billet shell. When flowing through the space between the lower arc plate 15 and the circular mold cavity assembly 31, due to its narrow space, the water flow can quickly pass through the lower part of the circular mold cavity assembly 31 to ensure the overall flow rate. Moreover, since the water flow is compressed, the thickness of the solidified shell can be accurately controlled to avoid overcooling and cracking. An airflow heat dissipation mechanism is provided in the crystallizer assembly 53, and a water flow dividing mechanism is provided in the crystallizer assembly 53.

[0029] In this embodiment, Figure 4 、 Figure 7 、 Figure 8 As shown, the water flow dividing mechanism includes a spoiler baffle 21, which is fixedly mounted on the arc-shaped inner wall of the upper arc baffle 11. A trapezoidal hole 23 is provided on the spoiler baffle 21. The trapezoidal design of the trapezoidal hole 23 can enhance the degree of turbulence, destroy the boundary layer of the coolant, and improve the heat transfer coefficient. A cutting plate 22 is fixedly installed in the trapezoidal hole 23 opened by the spoiler baffle 21. The cutting plate 22 can divide the coolant, thereby cutting its boundary layer and improving the cooling effect of the coolant. Two first water holes 14 are provided on the upper arc baffle 11, and a water inlet pipe 16 and a water outlet pipe 17 are fixedly mounted on the circumferential surface of the crystallizer shell 35. The water inlet pipe 16 and the first water hole 14 located above are both used to enter the coolant, and the water outlet pipe 17 and the first water hole 14 below are used to discharge the coolant.

[0030] A connecting block 12 is fixedly installed on the circumferential surface of the upper arc baffle 11, and the upper arc baffle 11 is fixedly installed on the inner wall of the crystallizer shell 35 through the connecting block 12. The outer surface of the upper arc baffle 11 has two raised parts, and the two raised parts are also tightly fitted with the inner wall of the crystallizer shell 35, and the space between the two raised parts can be sealed to prevent the heat-dissipating air from flowing back inside the crystallizer shell 35. Two fixed baffles 13 are fixedly installed on the inner surface of the upper arc baffle 11, and the two fixed baffles 13 separate the two first water holes 14.

[0031] In this embodiment, Figure 2 、 Figure 4 、 Figure 5 As shown, the airflow heat dissipation mechanism includes an air inlet duct 18 and an air outlet duct 19. The air inlet duct 18 is fixedly installed at the bottom of the crystallizer shell 35, and the air outlet duct 19 is fixedly installed at the top of the crystallizer shell 35. An exhaust fan 45 is provided in the air inlet duct 18, and the exhaust fan 45 is used to blow cold air into the crystallizer shell 35. The air inlet duct 18 and the air outlet duct 19 are both connected to the inside of the crystallizer shell 35. When the outer surface of the circular mold cavity assembly 31 is cooled by the coolant, the exhaust fan 45 inside the air inlet duct 18 is started, and the outside air can be drawn into the inside of the crystallizer shell 35, and then pass through the lower arc plate 15 and the side end of the upper arc partition plate 11, and be discharged from the position of the air outlet duct 19. In this discharge process, part of the heat of the coolant can be taken out, thereby further improving the solidification of the liquid non-ferrous metal in the circular mold cavity assembly 31.

[0032] In this embodiment, Figure 1 、 Figure 2 As shown, a support rod 43 is fixedly mounted on the connecting base 44, a secondary cooling pipe 41 is fixedly mounted on the support rod 43, the secondary cooling pipe 41 is connected to the air outlet pipe 19, an atomizer 42 is fixedly mounted on the secondary cooling pipe 41, the atomizer 42 sprays atomized water into the interior between the air outlet pipe 19 and the secondary cooling pipe 41, and when the ingot at the outlet of the crystallizer assembly 53 enters the secondary cooling pipe 41, it needs to be cooled quickly. Since the moisture content of the hot air outlet of the dry air flow on the air outlet pipe 19 is low, when passing through the position of the atomizer 42, the hot air outlet is mixed with the atomized water to form a composite cooling medium of hot air and droplets, which utilizes the evaporation of droplets to absorb heat and the convection of hot air to enhance the heat exchange efficiency of the secondary cooling and shorten the complete solidification time of the ingot.

[0033] In this embodiment, Figure 1 、 Figure 3 、 Figure 5As shown, when the circular cavity assembly 31 in the crystallizer shell 35 is replaced, a rectangular cavity assembly 24 is slidably installed in the crystallizer shell 35. The installation of the rectangular cavity assembly 24 in the crystallizer shell 35 is the same as that of the circular cavity assembly 31. The mold shape of the rectangular cavity assembly 24 is rectangular and is used for continuous casting of non-ferrous metals to form rectangular plates. A second baffle 26 is fixedly installed on the rectangular cavity assembly 24, and a first baffle 25 is fixedly installed on the rectangular cavity assembly 24. Two second water holes 27 are provided through the rectangular cavity assembly 24. The two second water holes 27 are located at the bottom of the mold. On both sides of the rectangular through hole on the rectangular mold cavity assembly 24, the second baffle 26 is in contact with the spoiler baffle 21 and the inner wall of the upper arc baffle 11, and the first baffle 25 is in contact with the inner wall of the lower arc plate 15. When the rectangular mold cavity assembly 24 is cooled and solidified, the coolant enters from the water inlet pipe 16, and then flows through the spoiler baffle 21 inside the upper arc baffle 11, and directly flows into the second water hole 27 opened in the rectangular mold cavity assembly 24, and then is discharged from the water outlet pipe 17. The flow channel of the coolant can be changed to fit more closely with the rectangular mold cavity assembly 24, thereby improving the continuous casting efficiency of the rectangular mold cavity assembly 24.

[0034] Working principle:

[0035] The first step is to start the equipment and melt the metal. Start the equipment, put the traction mechanism 51 in standby state, and the smelting furnace 54 begins to heat, melt and refine the non-ferrous metal to make it liquid. The liquid metal flows into the crystallizer assembly 53. The melted liquid non-ferrous metal is connected to the smelting furnace 54 through the long water nozzle. The position of the long water nozzle and the entrance of the crystallizer assembly 53 is sealed by expansion-compensating refractory mud to ensure that the liquid metal flows smoothly into the crystallizer assembly 53.

[0036] Step 3: Taking the circular mold cavity as an example, during the cooling and solidification process of the circular mold cavity component 31, the coolant flows in from the water inlet pipe 16, and enters the space between the upper arc baffle 11 and the circular mold cavity component 31 through the first water hole 14 above. Since the space is large, the coolant generates stronger turbulence and higher heat exchange intensity here, quickly grabs the liquid heat, and promotes the liquid non-ferrous metal to quickly form a strong and uniform shell. In addition, the coolant flows in from the water inlet pipe 16, passes through the spoiler baffle 21 inside the upper arc baffle 11, and the trapezoidal holes 23 and the cutting plate 22 on the spoiler baffle 21 enhance the turbulence of the coolant, destroying the Boundary layer, improves the cooling effect, and then the coolant flows through the narrow space between the lower arc plate 15 and the circular mold cavity assembly 31. The water flow is compressed, which can accurately control the thickness of the solidified shell and avoid overcooling cracking. Then it flows out from the first water hole 14 below and is discharged through the water outlet pipe 17. At the same time, the exhaust fan 45 in the air inlet pipe 18 is started to draw the external cold air into the crystallizer shell 35. The air passes through the lower arc plate 15 and the side end of the upper arc partition 11 and is discharged from the air outlet pipe 19. In this process, part of the heat of the coolant is taken out, further improving the solidification rate of the liquid non-ferrous metal in the circular mold cavity assembly 31.

[0037] Step 4: Secondary cooling and enhanced solidification. The ingot coming out of the outlet of the crystallizer assembly 53 enters the secondary cooling pipe 41. The atomizer 42 sprays atomized water between the air outlet pipe 19 and the secondary cooling pipe 41. The air outlet pipe 19 discharges hot air with low moisture content mixed with atomized water. The composite cooling medium of hot air and mist droplets uses the evaporation heat absorption of mist droplets and the convection of hot air to enhance the heat exchange efficiency of secondary cooling and shorten the complete solidification time of the ingot. The traction mechanism 51 pulls the solidified solid non-ferrous metal to make it move gradually outward.

[0038] Step 5: If rectangular ingots need to be produced, the rectangular mold cavity assembly 24 is replaced and used. When rectangular ingots need to be produced, the circular mold cavity assembly 31 is slid out of the crystallizer shell 35 and removed, and the rectangular mold cavity assembly 24 is installed. The installation method of the rectangular mold cavity assembly 24 in the crystallizer shell 35 is the same as that of the circular mold cavity assembly 31, and sealing and fixation are achieved through metal gaskets 32, high-temperature resistant rubber rings 33 and locking ring sleeves 34.

[0039] Step 6: During the cooling and solidification process of the rectangular mold cavity assembly 24, the coolant flows directly into the second water hole 27 opened in the rectangular mold cavity assembly 24, and then is discharged from the water outlet pipe 17. This flow channel fits the rectangular mold cavity assembly 24 better, thereby improving the continuous casting efficiency of the rectangular billet. The airflow heat dissipation mechanism and the secondary cooling process are the same as those when the circular mold cavity assembly 31 is working, thereby ensuring the smooth solidification and traction output of the rectangular billet.

[0040] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A continuous casting crystallizer for nonferrous metals, comprising a main body base (52), characterized in that: A traction mechanism (51) is provided on the right side of the upper end of the main base (52), a smelting furnace (54) is provided on the left side of the upper end of the main base (52), a crystallizer assembly (53) is provided on the circumferential surface of the smelting furnace (54), a connecting base (44) is fixedly installed on the lower end of the crystallizer assembly (53), and the connecting base (44) is installed on the main base (52); The crystallizer assembly (53) includes a crystallizer shell (35), a circular mold cavity component (31) is slidably installed in the crystallizer shell (35), and metal gaskets (32) are provided on both sides of the circular mold cavity component (31), and the separated ends of the two metal gaskets (32) are provided with high-temperature resistant rubber rings (33), and the right end of the crystallizer shell (35) is connected to a locking ring sleeve (34) through a threaded inner screw, and the metal gasket (32) and the high-temperature resistant rubber ring (33) on the right end are both located between the locking ring sleeve (34) and the crystallizer shell (35). ), an upper arc baffle (11) is provided in the crystallizer shell (35), a lower arc plate (15) is fixedly mounted on the upper arc baffle (11), the upper arc baffle (11) and the lower arc plate (15) divide the space inside the crystallizer shell (35) into two parts, the outer circumference of the upper arc baffle (11) and the lower arc plate (15) is used for flowing air, and the inner circumference of the upper arc baffle (11) and the lower arc plate (15) is used for flowing cooling liquid, an air flow heat dissipation mechanism is provided in the crystallizer assembly (53), and a water flow dividing mechanism is provided in the crystallizer assembly (53); The water flow dividing mechanism includes a spoiler baffle (21), the spoiler baffle (21) is fixedly mounted on the arc-shaped inner wall of the upper arc baffle (11), a trapezoidal hole (23) is opened on the spoiler baffle (21), and a cutting plate (22) is fixedly mounted in the trapezoidal hole (23) opened on the spoiler baffle (21), and the air flow heat dissipation mechanism includes an air inlet pipe (18) and an air outlet pipe (19), the air inlet pipe (18) is fixedly mounted below the crystallizer shell (35), and the air outlet pipe (19) is fixedly mounted below the crystallizer shell (35). It is installed above the crystallizer shell (35), an exhaust fan (45) is provided in the air inlet duct (18), the air inlet duct (18) and the air outlet duct (19) are both connected to the inside of the crystallizer shell (35), a support rod (43) is fixedly installed on the connecting base (44), a secondary cooling duct (41) is fixedly installed on the support rod (43), the secondary cooling duct (41) is connected to the air outlet duct (19), and an atomizer (42) is fixedly installed on the secondary cooling duct (41).

2. A continuous casting mold for nonferrous metals according to claim 1, characterized in that: Two first water holes (14) are provided on the upper arc partition (11), and a water inlet pipe (16) and a water outlet pipe (17) are fixedly installed on the circumferential surface of the crystallizer shell (35). The water inlet pipe (16) and the first water hole (14) located above are used for inletting cooling liquid, and the water outlet pipe (17) and the first water hole (14) located below are used for outletting cooling liquid.

3. A continuous casting crystallizer for nonferrous metals as claimed in claim 2, characterized in that: A connecting block (12) is fixedly mounted on the circumferential surface of the upper arc baffle (11), and the upper arc baffle (11) is fixedly mounted on the inner wall of the crystallizer shell (35) via the connecting block (12). The outer surface of the upper arc baffle (11) has two raised portions.

4. A continuous casting mold for nonferrous metals as claimed in claim 3, characterized in that: The two raised portions fit tightly against the inner wall of the crystallizer shell (35), and the space between the two raised portions can be sealed. Two fixed baffles (13) are fixedly mounted on the inner surface of the upper arc partition (11), and the two fixed baffles (13) separate the two first water holes (14).

5. A continuous casting crystallizer for nonferrous metals as claimed in claim 4, characterized in that: A rectangular mold cavity assembly (24) is slidably installed in the crystallizer shell (35), and the mold shape of the rectangular mold cavity assembly (24) is rectangular. When the rectangular mold cavity assembly (24) is replaced and used, when it is necessary to produce rectangular ingots, the circular mold cavity assembly (31) is slid out of the crystallizer shell (35) and the rectangular mold cavity assembly (24) is installed. The installation method of the rectangular mold cavity assembly (24) in the crystallizer shell (35) is the same as that of the circular mold cavity assembly (31). A second baffle (26) is fixedly installed on the rectangular mold cavity assembly (24), and a first baffle (25) is fixedly installed on the rectangular mold cavity assembly (24). Two second water holes (27) are opened through the rectangular mold cavity assembly (24).

6. A continuous casting mold for nonferrous metals as claimed in claim 5, characterized in that: The two second water holes (27) are located on both sides of the rectangular through hole on the rectangular mold cavity component (24); the second baffle (26) is in contact with the spoiler baffle (21) and the inner wall of the upper arc baffle (11); and the first baffle (25) is in contact with the inner wall of the lower arc plate (15).

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