Crystallization device for copper rod production

Abstract

The utility model discloses a crystallization device for copper rod production, which comprises a rack, a first driving part is arranged in the middle of the inside of the rack, the output end of the first driving part penetrates out of the rack and is sleeved with a crystallization wheel, and the outer edge of a wheel body of the crystallization wheel is sunken to form a crystallization wheel groove; the cooling pipe group is fixedly mounted on the front surface of the rack and positioned around the crystallizing wheel; the steel belt wheel set is arranged on the circumferential side of the crystallization wheel in a surrounding mode, and the steel belt is arranged on the steel belt wheel set in a sleeving mode and used for forming a crystallization channel with a crystallization wheel groove in the outer side wall of the crystallization wheel. The cooling pipe set, the multi-wheel-set steel belt system and the crystallization wheel work cooperatively, and efficient and stable control over the copper rod crystallization process of copper liquid can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of copper rod production technology, and in particular to a crystallization device for copper rod production. Background Technology

[0002] In the continuous casting process of copper rods, the crystallization device, by rapidly cooling the molten copper liquid into shape, directly affects the crystallization quality and mechanical properties of the copper rod. The traditional basic crystallization device has an extremely simplified structure, usually consisting of only a single steel belt (belt) and a crystallization wheel. Its working principle is as follows: the steel belt surrounds part of the surface of the crystallization wheel, and cooperates with the groove of the crystallization wheel to form a temporary crystallization channel, in which the molten copper liquid initially solidifies.

[0003] However, such simple designs have significant drawbacks: (1) Low cooling efficiency: Since no dedicated cooling mechanism is set up, relying only on natural heat dissipation or simple water cooling contact, the solidification rate of copper liquid is uncontrollable, and defects such as coarse grains, internal shrinkage cavities or surface cracks are likely to occur; (2) Poor sealing of crystallization channel: The contact range between the single steel belt and the crystallization wheel groove is limited, and the tension adjustment capability of the steel belt is weak. In the early stage of solidification, copper liquid is prone to leakage from the gap between the steel belt and the crystallization wheel groove, resulting in broken rods or irregular cross-sectional shapes; (3) Insufficient structural stability: The single steel belt path lacks multi-wheel support, and the steel belt is prone to loosening or shifting at high temperature, causing deformation of the crystallization channel and affecting the reliability of continuous production. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of insufficient stability of existing steel strip and crystallizing wheel groove structures, which affect the reliability of continuous production and the poor cooling effect, and to provide a crystallization device for copper rod production.

[0005] A crystallization apparatus for copper rod production, comprising:

[0006] A frame, wherein a first driving member is provided in the middle of the frame, the output end of the first driving member extends out of the frame and is sleeved with a crystallizing wheel, and the outer edge of the crystallizing wheel is recessed to form a crystallizing wheel groove;

[0007] The cooling pipe assembly is fixedly installed on the front of the frame, around the crystallizing wheel;

[0008] Steel pulley sets are arranged around the periphery of the crystallizing wheel.

[0009] The steel belt is fitted onto the steel belt pulley assembly and is used to form a crystallization channel with the crystallization groove on the outer wall of the crystallizing wheel.

[0010] Furthermore, the steel pulley assembly includes

[0011] The first steel pulley is rotatably mounted on the frame and located to the left of the crystallizing wheel;

[0012] The second steel pulley is rotatably mounted on the frame, located to the lower left of the crystallizing wheel;

[0013] The third steel pulley is rotatably mounted on the frame, located to the lower right of the crystallizing wheel;

[0014] The fourth steel pulley is rotatably mounted on the frame and located at the upper right corner of the crystallizing wheel;

[0015] The fifth steel pulley is rotatably mounted on the frame, located to the upper right of the fourth steel pulley;

[0016] The crystallization channel is configured as an arc-shaped structure, with the starting point of the arc located at the contact point between the fourth steel pulley and the crystallization wheel, and the ending point of the arc located at the contact point between the first steel pulley and the crystallization wheel.

[0017] Furthermore, the frame is also equipped with a first swing mechanism, which includes...

[0018] A swing fixing plate is fixedly installed on the side of the frame, and a swing through groove is provided on the swing fixing plate;

[0019] A first rotating arm, one end of which is hinged to one end of a swing fixing plate; the other end of the first rotating arm is provided with a hollow rotating sleeve, and the shaft of the second steel belt pulley is rotatably inserted into the hollow rotating sleeve;

[0020] The first hydraulic cylinder is built into the frame. The movable end of the first hydraulic cylinder extends through the frame and the swing slot, and is connected to the first rotating arm through the hinge seat.

[0021] Furthermore, a second swing mechanism is also provided inside the frame, the second swing mechanism including...

[0022] A central connecting shaft is integrally installed through the frame. The front end of the central connecting shaft protrudes from the frame and is fixedly sleeved with a connecting arm. The rear end of the central connecting shaft is movably fixed inside the frame via a rotating seat. The rotating shaft of the fourth steel belt pulley is inserted into the other end of the connecting arm.

[0023] The second hydraulic cylinder is built into the frame, and the movable end of the second hydraulic cylinder is connected to a push arm via a U-shaped hinge seat; the push arm is fixedly sleeved on the central connecting shaft.

[0024] Furthermore, the frame is also equipped with a U-shaped backflush pipe, which is gapped between the two sides of the steel belt and located between the third steel belt pulley and the fifth steel belt pulley.

[0025] Furthermore, a steel pulley guard is also provided on the frame, and the steel pulley guard is located at the upper right corner of the fourth steel pulley.

[0026] Furthermore, the cooling pipe assembly includes

[0027] The first main cooling spray pipe is located inside the crystallizer groove, and the spray direction is towards the inner wall of the crystallizer groove.

[0028] The second main cooling spray pipe is located outside the crystallizer groove.

[0029] The first set of cooling spray pipes is located on the rear outer side of the crystallizer groove.

[0030] The second set of cooling spray pipes is located on the front outer side of the crystallizer groove.

[0031] The spraying direction of the second main cooling spray pipe, the first auxiliary cooling spray pipe, and the second auxiliary cooling spray pipe is towards the steel strip;

[0032] The third main cooling spray pipe is located in front of the crystallizer groove, and the spray direction is towards the groove wall of the crystallizer groove.

[0033] The beneficial effects of this utility model are:

[0034] By coordinating the cooling tube assembly with the multi-wheel steel belt system and the crystallizing wheel, efficient and stable control of the copper rod crystallization process can be achieved.

[0035] By fixing the cooling pipe assembly around the crystallizing wheel and covering the crystallizing wheel groove and steel strip surface with multi-angle spraying, directional cooling enables the inner and outer layers of the copper rod to cool down synchronously and uniformly, improving grain refinement, effectively eliminating internal shrinkage cavities and surface crack defects, and improving product qualification rate.

[0036] By forming a closed-loop support structure by encircling the crystallizing wheel with steel belt pulleys, the steel belt is tightly fitted to the crystallizing wheel groove after being tensioned by multiple pulleys, forming a continuous and stable arc-shaped crystallization channel. Compared with the single belt single-point contact design, the multi-pulley layout expands the steel belt wrapping range to more than 180° on the outer edge of the crystallizing wheel, reducing the probability of copper liquid leakage and ensuring a regular cross-sectional shape without the risk of rod breakage. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the device;

[0038] Figure 2 This is a schematic diagram of the exploded structure of the device;

[0039] Figure 3 This is a schematic diagram of the front structure of the device;

[0040] Figure 4 This is a schematic diagram showing the positional relationship of the steel belt pulley assembly.

[0041] Figure 5 This is a schematic diagram of the cooling pipe assembly structure;

[0042] Figure 6 This is a schematic diagram of the first swing mechanism.

[0043] Figure 7 This is a schematic diagram of the second swing mechanism.

[0044] In the diagram, 1-frame, 4-crystallization mechanism, 400-crystallization channel, 41-crystallization wheel, 4101-crystallization wheel groove, 42-fourth steel pulley, 43-fifth steel pulley, 44-third steel pulley, 45-second steel pulley, 46-first steel pulley, 47-cooling pipe assembly, 4701-first main cooling spray pipe, 4702-first auxiliary cooling spray pipe, 4703-second auxiliary cooling spray pipe, 4704-second main cooling spray pipe, 4705-third main cooling spray pipe. 48-Second swing mechanism, 4801-Second hydraulic cylinder, 4802-U-shaped hinge seat, 4803-Central connecting shaft, 4804-Push arm, 4805-Connecting arm, 49-First swing mechanism, 4901-Swing fixing plate, 4902-Swing through groove, 4903-First hydraulic cylinder, 4904-First rotating arm, 4905-Hollow rotating sleeve, 410-First driving component, 411-Steel belt, 412-Steel belt pulley guard, 413-U-shaped backflush pipe. Detailed Implementation

[0045] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0046] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0047] Example

[0048] like Figures 1-7As shown, a crystallization device for copper rod production includes a frame 1. A first driving member 410 is disposed in the middle of the interior of the frame 1. The output end of the first driving member 410 extends out of the frame 1 and is sleeved with a crystallization wheel 41. Specifically, the first driving member 410 is a geared motor with a main shaft. The main shaft extends out of the frame 1 and is connected to the crystallization wheel 41 through a bearing sleeve, bearing, and spacer and other supporting components to control the crystallization wheel 41 to rotate slowly and uniformly.

[0049] The outer edge of the crystallizing wheel 41 is recessed to form a crystallizing wheel groove 4101; specifically, the crystallizing wheel 41 includes an inner crystallizing wheel clamping plate located on the inner side, and a crystallizing wheel body is fixedly installed on the outer side of the inner crystallizing wheel clamping plate. The crystallizing wheel body is circular and has a groove in its cross-section, which is the crystallizing wheel groove 4101.

[0050] Cooling pipe assembly 47 is fixedly installed on the front of frame 1, around crystallizing wheel 41. In this scheme, cooling pipe assembly 47 includes a first main cooling spray pipe 4701, located inside crystallizing wheel groove 4101, with the spray direction pointing towards the inner wall of crystallizing wheel groove 4101; a second main cooling spray pipe 4704, located outside crystallizing wheel groove 4101; a first auxiliary cooling spray pipe 4702, located on the rear outer side of crystallizing wheel groove 4101; a second auxiliary cooling spray pipe 4703, located on the front outer side of crystallizing wheel groove 4101; the spray direction of the second main cooling spray pipe 4704, the first auxiliary cooling spray pipe 4702, and the second auxiliary cooling spray pipe 4703 is towards steel strip 411; and a third main cooling spray pipe 4705, located on the front side of crystallizing wheel groove 4101, with the spray direction pointing towards the groove wall of crystallizing wheel groove 4101. Specifically, the aforementioned cooling spray pipe includes a pipe body and nozzles evenly arranged on the pipe body. An external straight pipe is installed on the pipe body, connecting to an external liquid supply pipe. Specifically, the first main cooling spray pipe 4701 is located inside the crystallizing wheel groove 4101, with its spray angle perpendicular to the inner wall of the groove; the second main cooling spray pipe 4704 is located outside the groove, with its spray direction forming a 45° angle with the steel strip 411; the first auxiliary cooling spray pipe 4702 and the second auxiliary cooling spray pipe 4703 obliquely cover the surface of the steel strip 411 from the rear and front sides, respectively; the third main cooling spray pipe 4705 is arranged on the front side of the crystallizing wheel groove 4101, with its spray flow channel aligned with the tangential direction of the groove wall. Through the multi-directionally arranged cooling pipe group 47, all-round uniform cooling is achieved in the circumference of the crystallizing wheel groove 4101 and on both the inner and outer sides of the steel strip, effectively suppressing stress concentration inside the copper rod and improving grain refinement. Preferably, the third main cooling spray pipe 4705 provides directional spraying to the front wall of the crystallizing wheel groove, which can precisely adjust the temperature gradient at the crystallization front and avoid surface defects caused by local overcooling.

[0051] A steel pulley assembly is arranged around the crystallizing wheel 41. The assembly includes a first steel pulley 46, rotatably mounted on the frame 1 to the left of the crystallizing wheel 41; a second steel pulley 45, rotatably mounted on the frame 1 to the lower left of the crystallizing wheel 41; a third steel pulley 44, rotatably mounted on the frame 1 to the lower right of the crystallizing wheel 41; a fourth steel pulley 42, rotatably mounted on the frame 1 to the upper right of the crystallizing wheel 41; and a fifth steel pulley 43, rotatably mounted on the frame 1 to the upper right of the fourth steel pulley 42. The crystallization channel 400 is designed with an arc shape, with the arc starting at the contact point between the fourth steel pulley 42 and the crystallizing wheel 41, and ending at the contact point between the first steel pulley 46 and the crystallizing wheel 41. The arc path formed by the five sets of steel pulleys extends the solidification time of the molten copper. Combined with the gradual curvature design from the fourth steel pulley 42 to the first steel pulley 46, this allows for controlled shrinkage of the molten copper during solidification, reducing porosity defects.

[0052] The steel belt 411 is fitted onto the steel belt pulley assembly and is used to form a crystallization channel 400 with the crystallization groove 4101 on the outer side wall of the crystallizing wheel 41.

[0053] To achieve the desired tightness of the steel strip 411 and ensure its airtightness when in contact with the crystallizing wheel groove 4101 to prevent copper leakage, a first swing mechanism 49 is also provided inside the frame 1. The first swing mechanism 49 includes a swing fixing plate 4901, which is fixedly installed on the side of the frame 1. The swing fixing plate 4901 has a swing through groove 4902, which is a rectangular groove. A first rotating arm 4904 is provided, with one end of the first rotating arm 4904 hinged to one end of the swing fixing plate 4901. The other end of the first rotating arm 4904 is provided with a hollow rotating sleeve 4905, and the shaft of the second steel belt pulley 45 is rotatably inserted into the hollow rotating sleeve 4905. A first hydraulic cylinder 4903 is built into the frame 1, with the movable end of the first hydraulic cylinder 4903 passing through the frame 1 and the swing through groove 4902, and connected to the first rotating arm 4904 through a hinge seat. Specifically, the swing fixing plate 4901 is welded to the side of the frame 1. One end of the first rotating arm 4904 is hinged to the swing fixing plate 4901, and the other end is fitted with a second steel pulley 45 through a hollow rotating sleeve 4905. The piston rod of the first hydraulic cylinder 4903 passes through the swing through groove 4902 and is hinged to the upper part of the first rotating arm 4904. The extension and retraction of the piston rod drives the second steel pulley 45 to rotate along the hinge, thereby increasing the tension on the lower side of the steel belt 411.

[0054] To ensure the sealing of the crystallization channel 400 during copper casting, a second swing mechanism 48 is provided inside the frame 1. The second swing mechanism 48 includes a central connecting shaft 4803, which runs through the frame 1. The front end of the central connecting shaft 4803 extends out of the frame 1 and is fixedly sleeved with a connecting arm 4805. The rear end of the central connecting shaft 4803 is movably fixed inside the frame 1 via a rotating seat. The rotating shaft of the fourth steel pulley 42 is inserted into the other end of the connecting arm 4805. A second hydraulic cylinder 4801 is built into the frame 1. The movable end of the second hydraulic cylinder 4801 is connected to a push arm 4804 via a U-shaped hinge seat 4802. The push arm 4804 is fixedly sleeved on the central connecting shaft 4803. The central connecting shaft 4803 passes through the frame 1 via a bearing, and two support arms are fixedly sleeved at its front end. The fourth steel pulley 42 is rotatably installed between the two support arms. The piston rod of the second hydraulic cylinder 4801 causes the central connecting shaft 4803 to rotate through the push arm 4804, thereby controlling the gap between the fourth steel pulley 42 and the crystallizing wheel 41 to adapt to different copper liquid flow rates.

[0055] Preferably, to prevent copper slag on the surface of the steel strip from affecting subsequent copper molten casting, a U-shaped backflush pipe 413 is also provided on the frame 1. The U-shaped backflush pipe 413 is interlocked between both sides of the steel strip 411, and is located between the third steel pulley 44 and the fifth steel pulley 43. Specifically, the U-shaped backflush pipe 413 is made of 316L stainless steel, and the pipe body has two exhaust holes. High-pressure airflow is ejected from the exhaust holes to remove residual copper slag from both sides of the steel strip 411.

[0056] In order to further improve the fit of the steel belt 411 to the crystallizing wheel 41 during operation, a steel belt pulley cover 412 is also provided on the frame 1. The steel belt pulley cover 412 is located at the upper right corner of the fourth steel belt pulley 42.

[0057] How this device works:

[0058] When the first driving component 410 is started, the crystallizing wheel 41 is driven to rotate. At this time, the fourth steel belt pulley 42 rotates synchronously under the action of the steel belt. The steel belt 411 runs in a cycle along the path of fourth steel belt pulley 42 → crystallizing wheel 41 → first steel belt pulley 46 → second steel belt pulley 45 → third steel belt pulley 44 → fifth steel belt pulley 43.

[0059] The angle of the fourth steel pulley 42 is adjusted by the second hydraulic cylinder 4801 so that the inlet arc of the crystallization channel 400 matches the flow rate of the copper liquid;

[0060] Molten copper is injected into the crystallization channel 400 through the pouring port, and the cooling pipe group 47 starts spraying. The copper liquid initially solidifies in the crystallization wheel groove 4101 to form a copper rod billet.

[0061] The steel strip 411 is subjected to reverse blowing at the U-shaped backflush pipe 413 to remove surface oxides;

[0062] The formed copper rod is pulled out by a traction machine and enters the subsequent rolling process.

[0063] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A crystallization apparatus for copper rod production, characterized in that: include A frame (1) is provided with a first driving member (410) in the middle of the frame (1). The output end of the first driving member (410) passes through the frame (1) and is fitted with a crystallizing wheel (41). The outer edge of the crystallizing wheel (41) is recessed to form a crystallizing wheel groove (4101). Cooling pipe assembly (47) is fixedly installed on the front of frame (1) and located around crystallizing wheel (41); The steel pulley assembly is arranged around the crystallizing wheel (41). A steel belt (411) is fitted onto a steel belt pulley assembly to form a crystallization channel (400) with the crystallization groove (4101) on the outer side wall of the crystallizing wheel (41).

2. The crystallization apparatus for copper rod production according to claim 1, characterized in that: The steel pulley assembly includes The first steel pulley (46) is rotatably mounted on the frame (1) and located to the left of the crystallizing wheel (41); The second steel pulley (45) is rotatably mounted on the frame (1) and located to the lower left of the crystallizing wheel (41); The third steel pulley (44) is rotatably mounted on the frame (1) and located to the right and below the crystallizing wheel (41); The fourth steel pulley (42) is rotatably mounted on the frame (1) and located at the upper right corner of the crystallizing wheel (41); The fifth steel pulley (43) is rotatably mounted on the frame (1) and located to the right and above the fourth steel pulley (42); The crystallization channel (400) is configured as an arc-shaped structure, with the starting point of the arc located at the contact point between the fourth steel pulley (42) and the crystallization wheel (41), and the ending point of the arc located at the contact point between the first steel pulley (46) and the crystallization wheel (41).

3. A crystallization apparatus for copper rod production according to claim 2, characterized in that: The frame (1) is further provided with a first swing mechanism (49), the first swing mechanism (49) including A swing fixing plate (4901) is fixedly installed on the side of the frame (1), and a swing through groove (4902) is provided on the swing fixing plate (4901). The first rotating arm (4904) has one end hinged to one end of the swing fixing plate (4901); the other end of the first rotating arm (4904) is provided with a hollow rotating sleeve (4905), and the shaft of the second steel pulley (45) is rotatably inserted into the hollow rotating sleeve (4905). The first hydraulic cylinder (4903) is built into the frame (1). The movable end of the first hydraulic cylinder (4903) extends out of the frame (1) and the swing through slot (4902) and is connected to the first rotating arm (4904) through the hinge seat.

4. A crystallization apparatus for copper rod production according to claim 2, characterized in that: The frame (1) is further provided with a second swing mechanism (48), the second swing mechanism (48) including A central connecting shaft (4803) is installed throughout the frame (1). The front end of the central connecting shaft (4803) extends out of the frame (1) and is fixedly sleeved with a connecting arm (4805). The rear end of the central connecting shaft (4803) is movably fixed inside the frame (1) through a rotating seat. The rotating shaft of the fourth steel belt pulley (42) is inserted into the other end of the connecting arm (4805). The second hydraulic cylinder (4801) is built into the frame (1). The movable end of the second hydraulic cylinder (4801) is connected to a push arm (4804) through a U-shaped hinge seat (4802). The push arm (4804) is fixedly sleeved on the central connecting shaft (4803).

5. A crystallization apparatus for copper rod production according to claim 1, characterized in that: The frame (1) is also provided with a U-shaped backflush pipe (413), which is gapped between the two sides of the steel belt (411) and is located between the third steel belt pulley (44) and the fifth steel belt pulley (43).

6. A crystallization apparatus for copper rod production according to claim 1, characterized in that: The frame (1) is also provided with a steel pulley guard (412), which is located at the upper right corner of the fourth steel pulley (42).

7. A crystallization apparatus for copper rod production according to claim 1, characterized in that: The cooling pipe assembly (47) includes The first main cooling spray pipe (4701) is located inside the crystallizer groove (4101), and the spray direction is towards the inner wall of the crystallizer groove (4101). The second main cooling spray pipe (4704) is located outside the crystallizer groove (4101). The first set of cooling spray pipes (4702) is located on the rear outer side of the crystallizing wheel groove (4101). The second set of cooling spray pipes (4703) is located on the front outer side of the crystallizing wheel groove (4101). The spraying direction of the second main cooling spray pipe (4704), the first auxiliary cooling spray pipe (4702), and the second auxiliary cooling spray pipe (4703) is towards the steel strip (411). The third main cooling spray pipe (4705) is located in front of the crystallizer groove (4101), and the spray direction is towards the groove wall of the crystallizer groove (4101).

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