Efficient cooling device of oxygen-free copper rod continuous casting unit

Abstract

The utility model relates to the technical field of oxygen-free copper rod production equipment, in particular to an oxygen-free copper rod continuous casting unit efficient cooling device which comprises a cooling box and a water tank. A cooling pipe penetrates through the interior of the cooling box, a heat dissipation channel is formed in the side wall of the cooling box, and a fan facing the interior of the cooling box is installed in the heat dissipation channel; a cover plate is movably installed on the water tank, a plurality of detachable filtering pieces are arranged in the water tank, and a first water pump and a second water pump are fixed to the outer side of the water tank. Two ends of the water pump I are respectively connected with a water inlet pipe I and a water outlet pipe I, the water inlet pipe I extends into the water tank, the water outlet pipe I is communicated with one end of a cooling pipe, and the other end of the cooling pipe extends into the water tank; the two ends of the second water pump are connected with a second water inlet pipe and a second water outlet pipe respectively, the second water inlet pipe extends into the water tank, and the second water outlet pipe is connected with an atomizing nozzle which is installed on the air outlet side of the fan. The cooling modes are diversified, and heat conduction and heat dissipation are optimized.

Description

Technical Field

[0001] This utility model relates to the technical field of oxygen-free copper rod production equipment, and in particular to a high-efficiency cooling device for an oxygen-free copper rod continuous casting unit. Background Technology

[0002] Oxygen-free copper rod is a type of pure copper rod that contains no oxygen or deoxidizer residues, has a purity greater than 99.95%, and an oxygen content of no more than 0.02%. It is commonly used in fields requiring high purity and conductivity. In the production of oxygen-free copper, a continuous casting unit is used to directly cast molten copper into copper rods. During continuous casting, the cooling device plays a crucial role, and its cooling effect directly affects the quality and production efficiency of the oxygen-free copper rod.

[0003] Existing cooling devices, such as the circulating cooling devices of existing copper rod continuous casting machines, have a single cooling method and low thermal conductivity and heat dissipation performance. They are difficult to effectively cool high-speed flowing and circulating water, and cannot effectively cool the system, thus affecting product quality. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-efficiency cooling device for oxygen-free copper rod continuous casting units with diverse cooling methods and optimized heat conduction and dissipation.

[0005] This utility model discloses a high-efficiency cooling device for an oxygen-free copper rod continuous casting unit, comprising a cooling tank and a water tank. A cooling pipe runs through the cooling tank, and a heat dissipation channel is provided on the side wall of the cooling tank. A fan facing inwards from the heat dissipation channel is installed within the heat dissipation channel. A cover plate is movably installed on the water tank, and several detachable filter components are installed inside the water tank. Two water pumps are fixed to the outside of the water tank. Water pump one is connected to an inlet pipe and an outlet pipe at both ends, with the inlet pipe extending into the water tank and the outlet pipe connected to one end of the cooling pipe, the other end of which extends into the water tank. Water pump two is connected to an inlet pipe and an outlet pipe at both ends, with the inlet pipe extending into the water tank and the outlet pipe connected to an atomizing nozzle installed on the air outlet side of the fan.

[0006] As a preferred embodiment of this utility model, the inlet end of the water inlet pipe one and the outlet end of the cooling pipe are respectively connected to the two sides of the water tank, the inlet end of the water inlet pipe two and the inlet end of the outlet pipe one are connected to the same side of the water tank, and the flow rate of the water pump two is smaller than that of the water pump one.

[0007] As a preferred embodiment of this utility model, the cooling pipe is a thin metal tube with good thermal conductivity, which is bent and placed inside the cooling box.

[0008] As a preferred embodiment of this utility model, the bottom of the cooling box has an inverted conical structure, and a drain pipe is connected to the bottom end of the box, which extends into the water tank.

[0009] As a preferred embodiment of this utility model, the edge of the filter element is provided with a sealing strip that is adapted to the inner wall of the water tank. The filter element is installed and removed through a slot provided on the inner wall of the water tank, and the slot is provided with an elastic buckle.

[0010] As a preferred embodiment of this utility model, the filter element includes a coarse filter layer, an activated carbon adsorption layer, and a permanent magnet magnetic adsorption layer arranged sequentially along the water flow direction.

[0011] As a preferred embodiment of this utility model, a detachable dustproof net is provided on the outer side of the heat dissipation channel.

[0012] As a preferred embodiment of this utility model, the inner wall of the cooling box is provided with a heat insulation layer, and the outer wall of the cooling box is coated with a reflective heat insulation coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Water is circulated in the cooling pipe by water pump one to cool the copper rod. At the same time, water pump two sprays water from the water tank through atomizing nozzles. With the help of a fan, the heat dissipation effect is enhanced by the vaporization of atomized water and forced convection.

[0015] 2. The cooling pipes are made of thin metal tubes with good thermal conductivity and are bent to improve thermal conductivity, increase the contact area with cooling water, and improve cooling efficiency.

[0016] 3. The removable filter components inside the water tank include a coarse filter layer, an activated carbon adsorption layer, and a permanent magnet magnetic adsorption layer, which can effectively filter impurities, adsorb harmful substances, remove magnetic particles, ensure water quality, and improve cooling effect and product quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of section AA in the middle;

[0020] Figure 4 This is a front view structural diagram of the present invention;

[0021] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of the middle BB section;

[0022] Figure 6 This is a schematic diagram of the filter element structure of this utility model;

[0023] The attached diagram is labeled as follows: 1. Cooling box; 11. Cooling pipe; 12. Heat dissipation channel; 121. Dustproof net; 13. Fan; 14. Drain pipe; 15. Insulation layer; 2. Water tank; 21. Cover plate; 22. Filter element; 221. Sealing strip; 222. Slot; 223. Elastic buckle; 224. Coarse filter layer; 225. Activated carbon adsorption layer; 226. Permanent magnet magnetic attraction layer; 23. Water pump one; 231. Inlet pipe one; 232. Outlet pipe one; 24. Water pump two; 241. Inlet pipe two; 242. Outlet pipe two; 25. Atomizing nozzle. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Reference Figures 1-5 This embodiment provides a high-efficiency cooling device for an oxygen-free copper rod continuous casting unit, comprising a cooling tank 1 and a water tank 2; the cooling tank 1 plays a key role in cooling, while the water tank 2 is used to store and process the coolant.

[0027] A cooling pipe 11 is installed through the interior of the cooling box 1. A heat dissipation channel 12 is provided on the side wall of the cooling box 1. A fan 13 is installed in the heat dissipation channel 12 and faces the interior of the cooling box 1. When the fan 13 is started, it can generate airflow and blow into the cooling box 1. In order to ensure that the air blown by the fan 13 can act more accurately and efficiently on the surface of the cooling pipe 11, the shape of the heat dissipation channel 12 is adapted to the arrangement of the cooling pipe 11 in the cooling box 1, and has a specific flow guide shape, so that the airflow can flow smoothly along the heat dissipation channel 12 to the cooling pipe 11.

[0028] To facilitate cleaning, maintenance, and coolant replenishment of the water tank 2, a cover plate 21 is movably installed on the water tank 2. Several removable filters 22 are installed inside the water tank 2 to filter impurities in the coolant, ensuring that the coolant entering the cooling circulation system remains clean and preventing impurities from clogging components such as the cooling pipe 11, thus ensuring the stable operation of the cooling system. Water pump 1 23 and water pump 24 are fixedly installed on the outside of the water tank 2. Water pump 1 23 is connected to an inlet pipe 231 and an outlet pipe 232 at its two ends. The inlet pipe 231 extends into the water tank 2, its function being to draw coolant from the water tank 2, while the outlet pipe 232 connects to one end of the cooling pipe 11, allowing the drawn coolant to enter the cooling pipe 11 through the outlet pipe 232, where it flows through the pipe wall and interacts with the airflow. The cool air brought by the fan 13 exchanges heat; after the heat is carried away in the cooling pipe 11, the other end of the cooling pipe 11 extends into the water tank 2, and the coolant flows back into the water tank 2, completing one cooling cycle; the two ends of the water pump 24 are respectively connected to the inlet pipe 241 and the outlet pipe 242. The inlet pipe 241 extends into the water tank 2, and the outlet pipe 242 is connected to the atomizing nozzle 25, which is installed on the air outlet side of the fan 13; the water pump 24 is used to draw out the coolant from the water tank 2 and deliver it to the atomizing nozzle 25 through the outlet pipe 242. The atomizing nozzle 25 atomizes the coolant into tiny droplets. Under the action of the airflow blown out by the fan 13, the atomized droplets are blown toward the surface of the cooling pipe 11. Since the atomized droplets have a large surface area, they can quickly exchange heat with the surface of the cooling pipe 11, further improving the cooling efficiency.

[0029] In this embodiment, by combining multiple heat dissipation methods, the high-speed flowing and circulating water can be cooled more effectively, thereby better cooling the entire system, ensuring the quality of the oxygen-free copper rod, and improving production efficiency. In addition, the detachable filter 22 in the water tank 2 ensures the cleanliness of the coolant, extends the service life of the device, and reduces maintenance costs.

[0030] As a preferred embodiment of the above technical solution, the inlet end of the first water inlet pipe 231 and the outlet end of the cooling pipe 11 are respectively connected to both sides of the water tank 2, and the inlet end of the second water inlet pipe 241 and the inlet end of the first water outlet pipe 232 are connected to the same side of the water tank 2, and the flow rate of the second water pump 24 is smaller than that of the first water pump 23; specifically, the first water inlet pipe 231 extends into the bottom area of ​​the water tank 2. This arrangement ensures that the coolant in the water tank 2 is extracted to the maximum extent, avoiding insufficient extraction due to a drop in the coolant level, while the outlet end of the cooling pipe 11 is connected to the other side of the water tank 2. The upper-middle position of the water tank allows the coolant returning from cooling pipe 11 to form a top-to-bottom, one-to-other flow path within the tank 2, fully utilizing the space and promoting mixing and initial heat dissipation. Furthermore, the upper-middle connection position prevents excessive impact during coolant return, reducing foam and eddies and ensuring stable coolant flow. The second inlet pipe 241 connects to the lower-middle area of ​​the tank 2 near the first outlet pipe 232, making the coolant extraction path of the second pump 24 more... To achieve a compact design and reduce unnecessary flow distance of the coolant in the pipes, thus lowering energy loss, this location also allows for the extraction of pre-mixed and cooled coolant, ensuring a more uniform temperature of the coolant delivered to the atomizing nozzle 25, which is beneficial for improving the atomization cooling effect. Furthermore, water pump 23, as the main power source for coolant circulation in cooling pipe 11, needs to ensure rapid and continuous flow of coolant within the pipe to promptly remove the large amount of heat generated during the oxygen-free copper rod continuous casting process. Therefore, a large flow rate is set to meet the high-intensity cooling requirements. The water pump 24 is mainly responsible for delivering coolant to the atomizing nozzle 25 to form an atomized cooling effect. The smaller flow rate setting can ensure that the atomizing nozzle 25 receives a stable and appropriate supply of coolant, forming uniform and fine atomized droplets. It also avoids the problem of insufficient atomization of coolant due to excessive flow rate, which would lead to coolant waste and reduced cooling efficiency. At the same time, the smaller flow rate allows the atomized droplets to more accurately cover the surface of the cooling pipe 11 under the airflow of the fan 13, and to fully exchange heat with the cooling pipe 11, further improving the overall cooling efficiency.

[0031] The cooling pipe 11 is a thin metal tube with good thermal conductivity, preferably made of copper. Copper has an extremely high thermal conductivity, which can quickly conduct the heat carried by the coolant to the surface of the cooling pipe 11, increasing the speed of heat transfer. Furthermore, the cooling pipe 11 is placed in a curved manner inside the cooling box 1, with the curvature arranged in a spiral or serpentine pattern. This fully utilizes the three-dimensional space inside the cooling box 1. This curved placement increases the contact area between the cooling pipe 11 and the air inside the cooling box 1. When the fan 13 is started, the airflow can contact more of the surface of the cooling pipe 11, accelerating the heat exchange process and allowing heat to be dissipated to the outside of the cooling box 1 more quickly. On the other hand, it extends the flow path of the coolant in the cooling pipe 11. When the coolant flows in the curved pipe, it has more time to exchange heat with the outside, further reducing the temperature of the coolant and improving the cooling effect.

[0032] After the water mist is blown onto the cooling pipe 11, it condenses into water droplets. The water droplets flow along the cooling pipe 11 to the bottom of the cooling tank 1. In order to guide the condensate back, the bottom of the cooling tank 1 has an inverted cone-shaped structure, and a drain pipe 14 is connected to the bottom end. The drain pipe 14 extends into the water tank 2. The inverted cone-shaped bottom can use the principle of gravity to quickly guide the condensate to the lowest point of the cone. Compared with a flat bottom, the inverted cone-shaped structure can avoid liquid stagnation at the bottom, reduce the liquid accumulation area, and improve the liquid flow efficiency. The drain pipe 14 transports the condensate to the water tank 2, mixes with the coolant in the water tank 2, and participates in the circulation again. When the condensate condenses on the surface of the cooling pipe 11, its temperature has been reduced through heat exchange. After flowing back to the water tank 2, it can further reduce the temperature of the coolant and optimize the cooling effect.

[0033] To achieve a dual improvement in filtration performance and ease of maintenance, the filter element 22 is equipped with a sealing strip 221 on its edge that fits the inner wall of the water tank 2. The filter element 22 is installed and removed via a slot 222 on the inner wall of the water tank 2, and the slot 222 is equipped with an elastic buckle 223. Preferably, the sealing strip 221 is made of silicone rubber, which has good corrosion resistance and temperature resistance, and can adapt to the chemical environment and temperature changes of the coolant. By tightly fitting against the inner wall of the water tank 2, it forms a reliable sealing barrier to prevent coolant from leaking between the filter element 22 and the inner wall of the water tank 2. Leakage through the gaps in the wall prevents coolant from flowing without being filtered by the filter element 22; the elastic buckle 223 has good elasticity, and when the filter element 22 is installed in the slot 222, the elastic buckle 223 will automatically pop up and lock the filter element 22, ensuring that the filter element 22 can still be firmly kept in the installation position under complex working conditions such as coolant flow in the water tank 2 and vibration generated by water pump operation, without loosening or displacement. When it is necessary to remove the filter element 22, simply press the elastic buckle 223 gently to make it retract, and the filter element 22 can be easily removed. The operation is simple and safe.

[0034] To prevent external debris from entering the heat dissipation channel 12, a removable dustproof net 121 is provided on the outside of the heat dissipation channel 12. The removable dustproof net 121 can prevent debris from accumulating on the surface of the cooling pipe 11 or blocking the heat dissipation channel 12, thereby ensuring that the airflow blown out by the fan 13 can smoothly exchange heat with the cooling pipe 11 and maintain a high-efficiency heat dissipation effect.

[0035] The inner wall of the cooling box 1 is provided with a heat insulation layer 15, and the outer wall of the cooling box 1 is coated with a reflective heat insulation coating. The heat insulation layer 15 can be made of aerogel felt material, whose nano-porous structure can effectively inhibit heat conduction and heat convection, isolating the low-temperature environment inside the cooling box 1 from the high-temperature environment outside. The reflective heat insulation coating can be made of aluminum-based composite ceramic coating, which contains aluminum powder and ceramic microspheres with high reflectivity. In industrial environments with strong solar radiation, the coating can reflect more than 90% of visible light and near-infrared light, blocking external heat from entering the cooling box 1. Through the combination of the heat insulation layer 15 and the reflective heat insulation coating, the interior of the cooling box 1 is kept at a low temperature, reducing the rate at which the coolant in the cooling pipe 11 heats up due to external heat interference, thereby improving cooling efficiency and ensuring stable operation of the equipment.

[0036] Referring to Figure 6, the filter element 22 includes a coarse filter layer 224, an activated carbon adsorption layer 225, and a permanent magnet magnetic adsorption layer 226 arranged sequentially along the water flow direction. The coarse filter layer 224 can be made of stainless steel wire mesh, which can intercept larger particles of impurities in the coolant, such as copper shavings and oxide scale generated during the casting process, as well as dust mixed in during the cooling process. If these large particles of impurities enter the cooling circulation system, they may clog the cooling pipe 11 or wear down the water pump components. By using the coarse filter layer 224 as the first stage of filtration, the burden on subsequent filter layers can be effectively reduced, extending the service life of the entire filter element 22. The activated carbon adsorption layer 225 is composed of activated carbon with a high specific surface area, which is rich in micro-particles. The porous structure provides a large adsorption area, adsorbing organic pollutants, oil stains, odor substances, and some harmful chemicals dissolved in the coolant. This maintains the chemical stability of the coolant, prevents corrosion of the oxygen-free copper rod surface, and ensures product quality. During the continuous casting process of oxygen-free copper rod, extremely fine ferromagnetic metal particles are inevitably generated. The permanent magnet magnetic layer 226, composed of a permanent magnet array, generates a strong magnetic field. Through magnetic adsorption, it captures the ferromagnetic particles, preventing them from circulating in the cooling system. This further improves the purity of the coolant, reduces wear on the inner wall of the cooling pipe 11, and ensures the long-term stable operation of the cooling system.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-efficiency cooling device for an oxygen-free copper rod continuous casting unit, characterized in that, A cooling tank (1) and a water tank (2); a cooling pipe (11) runs through the cooling tank (1), and a heat dissipation channel (12) is provided on the side wall of the cooling tank (1). A fan (13) facing the interior of the cooling tank (1) is installed in the heat dissipation channel (12); a cover plate (21) is movably installed on the water tank (2), and several detachable filter elements (22) are provided inside the water tank (2). A water pump one (23) and a water pump two (24) are fixed on the outside of the water tank (2); the two ends of the water pump one (23) are respectively connected to an inlet pipe one (231) and an outlet pipe. Water pipe 1 (232), the water inlet pipe 1 (231) extends into the water tank (2), the water outlet pipe 1 (232) is connected to one end of the cooling pipe (11), and the other end of the cooling pipe (11) extends into the water tank (2); the two ends of the water pump 2 (24) are respectively connected to the water inlet pipe 2 (241) and the water outlet pipe 2 (242), the water inlet pipe 2 (241) extends into the water tank (2), and the water outlet pipe 2 (242) is connected to the atomizing nozzle (25), and the atomizing nozzle (25) is installed on the air outlet side of the fan (13).

2. The high-efficiency cooling device for the oxygen-free copper rod continuous casting unit as described in claim 1, characterized in that, The inlet end of the first water inlet pipe (231) and the outlet end of the cooling pipe (11) are respectively connected to the two sides of the water tank (2). The inlet end of the second water inlet pipe (241) and the inlet end of the first water outlet pipe (232) are connected to the same side of the water tank (2). The flow rate of the second water pump (24) is smaller than that of the first water pump (23).

3. The high-efficiency cooling device for the oxygen-free copper rod continuous casting unit as described in claim 1, characterized in that, The cooling pipe (11) is a thin metal tube with good thermal conductivity, which is bent and placed inside the cooling box (1).

4. The high-efficiency cooling device for the oxygen-free copper rod continuous casting unit as described in claim 1, characterized in that, The bottom of the cooling tank (1) is an inverted cone-shaped structure, and a drain pipe (14) is connected to the bottom end of the tank. The drain pipe (14) extends into the water tank (2).

5. The high-efficiency cooling device for the oxygen-free copper rod continuous casting unit as described in claim 1, characterized in that, The filter element (22) has a sealing strip (221) on its edge that is adapted to the inner wall of the water tank (2). The filter element (22) is installed and removed by a slot (222) on the inner wall of the water tank (2). The slot (222) is provided with an elastic buckle (223).

6. The high-efficiency cooling device for the oxygen-free copper rod continuous casting unit as described in claim 1, characterized in that, The filter element (22) includes a coarse filter layer (224), an activated carbon adsorption layer (225), and a permanent magnet magnetic adsorption layer (226) arranged sequentially along the water flow direction.

7. The high-efficiency cooling device for the oxygen-free copper rod continuous casting unit as described in claim 1, characterized in that, A removable dustproof net (121) is provided on the outside of the heat dissipation channel (12).

8. The high-efficiency cooling device for the oxygen-free copper rod continuous casting unit as described in claim 1, characterized in that, The inner wall of the cooling box (1) is provided with a heat insulation layer (15), and the outer wall of the cooling box (1) is coated with a reflective heat insulation coating.

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