Preparation equipment and preparation method of high-purity oxygen-free copper rod

Abstract

The invention provides preparation equipment and a preparation method of a high-purity oxygen-free copper rod, and belongs to the technical field of oxygen-free copper rod production equipment.The preparation equipment comprises a bottom plate and a smelting furnace assembly, a hoisting mechanism is arranged at the top of the bottom plate, a surface cleaning assembly is arranged on one side of the top of the bottom plate, and a flushing mechanism is arranged at the top of the bottom plate; a preheating mechanism is arranged on the other side of the top of the bottom plate, the surface cleaning assembly comprises a cleaning tank, the bottom of the cleaning tank is fixedly connected with the bottom plate, an ultrasonic generator is installed on the surface of the cleaning tank, one side of the cleaning tank communicates with a Y-shaped filter, and one side of the Y-shaped filter communicates with a centrifugal pump; one side of the centrifugal pump communicates with a precision filter, and one side of the precision filter communicates with a heat exchanger. According to the method, an oxide layer on the surface of the electrolytic copper plate can be fully removed, the residual quantity of impurities is greatly reduced, a high-cleanliness raw material is provided for the subsequent smelting link, the impurity content in the oxygen-free copper rod is remarkably reduced, and the conductivity of a product is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of oxygen-free copper rod production equipment, and particularly relates to a preparation equipment and method of high-purity oxygen-free copper rod. BACKGROUND

[0002] High-purity oxygen-free copper rod is a core material for key components such as chip packaging leads, power battery busbars, and high-precision sensor wires due to its extremely low oxygen content, excellent electrical conductivity, and good ductility. As downstream industries continue to demand higher precision and reliability, the market has set more stringent standards for the quality stability and impurity control level of high-purity oxygen-free copper rod. Currently, the preparation equipment for high-purity oxygen-free copper rod mainly consists of a melting system and a forming mechanism.

[0003] Chinese Patent No. CN118437897B discloses an up-drawing method oxygen-free copper rod production line. The technical solution is as follows: a melting furnace, a holding furnace, a crystallizer, a traction device, a shaking device, a lifting mechanism, and a take-up device are connected in sequence. A copper material processing device is arranged on the front side of the melting furnace. The copper material processing device includes a base and a processing cylinder connected to the base. The processing cylinder is placed horizontally and has a processing opening at the upper position. A rotating shaft is connected to the center axis of the processing cylinder. The outer wall of the rotating shaft is uniformly connected to a partition. The adjacent partitions form a processing cavity. The molten electrolytic copper plate is coated with carbon powder, which can isolate oxygen during the melting process, reduce oxidation, and improve the quality of the subsequent copper liquid, thereby improving the quality of the formed oxygen-free copper rod. The coating process of the electrolytic copper plate is carried out inside the processing cylinder to avoid dust pollution of the surrounding working environment.

[0004] The production line in the above patent mainly focuses on the process optimization of the up-drawing method, but lacks effective means for deep treatment of surface impurities of raw materials. During production and storage, the electrolytic copper plate forms an oxidation layer of 1-3 microns thick on the surface, and also adheres rolling oil stains, dust particles, and other impurities. Traditional cleaning equipment only uses single spraying or static soaking methods, resulting in low removal rate of the oxidation layer, especially for micron-level recessed impurities, the cleaning liquid is difficult to penetrate, forming a cleaning blind area. These residual impurities will be converted into inclusions in the copper liquid during melting, causing the resistivity of the oxygen-free copper rod to increase, which cannot meet the use requirements of high-precision electronic components. At the same time, in the traditional cleaning method, the cleaning liquid continuously mixes with the falling oxidation debris and external pollutants during use, and the traditional filtering device cannot effectively intercept these impurities, leading to secondary pollution of the copper plate surface by the cleaning liquid. The impurity particle concentration in the cleaning liquid used for more than 2 hours can reach 5-8 times the initial value, directly causing secondary adhesion on the surface of the copper plate, increasing the difficulty of impurity control in the subsequent melting link. SUMMARY

[0005] Based on the problems existing in the prior art, the present application provides a preparation equipment and method of high-purity oxygen-free copper rod, which is suitable for use in the field with strict requirements on material performance.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a preparation equipment of high-purity oxygen-free copper rod, comprising a bottom plate and a smelting furnace assembly, the top of the bottom plate is provided with a hoisting mechanism, one side of the top of the bottom plate is provided with a surface cleaning assembly, the top of the bottom plate is provided with a flushing mechanism, the other side of the top of the bottom plate is provided with a preheating mechanism, the surface cleaning assembly comprises a cleaning tank, an ultrasonic generator is installed on the surface of the cleaning tank, a Y-type filter is communicated with one side of the cleaning tank, a centrifugal pump is communicated with one side of the Y-type filter, a precision filter is communicated with one side of the centrifugal pump, a heat exchanger is communicated with one side of the precision filter, a distributor is communicated with one side of the heat exchanger, and a liquid distribution device is communicated with the bottom of the distributor.

[0007] Preferably, one side of the bottom plate is provided with a moving trolley mechanism, the moving trolley mechanism comprises a moving vehicle, the moving vehicle is arranged on one side of the bottom plate, a bottom frame is arranged on the top of the moving vehicle, a partition frame is fixedly connected to the top of the bottom frame, hoisting frames are fixedly connected to the two sides of the top of the bottom frame, and lifting rings are fixedly connected to the top of the hoisting frames.

[0008] Preferably, the hoisting mechanism comprises four vertical columns, the vertical columns are fixedly connected to the bottom plate, guide rails are fixedly connected to the top of the vertical columns, two moving frames are slidingly connected to one side of the top of the guide rails, winches are fixedly connected to the top of the moving frames, pulleys are arranged on the bottom of the winches, and clamps are arranged on the bottom of the pulleys.

[0009] Preferably, the flushing mechanism comprises a flushing tank, the flushing tank is fixedly connected to the bottom plate, a cleaning pipe is fixedly connected to the surface of the flushing tank, a flushing nozzle is communicated with one side of the cleaning pipe, the flushing nozzle penetrates into the inner cavity of the flushing tank on one side, a drain pipe is communicated with the bottom of one side of the flushing tank, a valve is arranged on one side of the top of the drain pipe, a three-way pipe is communicated with the surface of the cleaning pipe, and a water inlet joint is communicated with one side of the three-way pipe.

[0010] Preferably, the preheating mechanism comprises a preheating box, the preheating box is fixedly connected to the bottom plate, a heater is fixedly connected to the surface of the preheating box, heating pipes are fixedly connected to the two sides of the inner cavity of the preheating box, sliding rails are fixedly connected to the two sides of the top of the preheating box, and sealing plates are slidingly connected to the top of the sliding rails.

[0011] Preferably, the smelting furnace assembly comprises a furnace body, the furnace body is surface-communicated with a mounting seat, the mounting seat is surface-communicated with a protective gas inlet pipe, one side of the furnace body is provided with a heat preservation furnace, a smelting groove is arranged between the heat preservation furnace and the furnace body, the heat preservation furnace and the furnace body are communicated through the smelting groove, the heat preservation furnace is provided with a hollow crystallizer at the top, the hollow crystallizer is internally provided with a circulating cooling water pipe, the hollow crystallizer is provided with a traction device at the top, and the furnace body is fixedly connected with a ceramic filter plate in the cavity.

[0012] Preferably, the furnace body is fixedly connected with a support column at the top of each corner, the support column is fixedly connected with a top plate at the top, and the top plate is fixedly connected with a guide device at the top.

[0013] Preferably, the furnace body is fixedly connected with a feeding plate at the top, the feeding plate is provided with a feeding port at the top, the feeding plate is provided with a protective cover at the top rear end, the protective cover is communicated with a connecting pipe at the top, and one side of the connecting pipe is communicated with an external induced draft fan.

[0014] Preferably, the cleaning tank is fixedly connected with a protective plate on one side, the protective plate is fixedly connected with a mounting column on one side at the bottom, and the mounting column is fixedly connected with the bottom plate at the bottom.

[0015] A preparation method of a high-purity oxygen-free copper rod preparation equipment, comprising the following steps: Step one: place the electrolytic copper plate to be treated on the chassis, the divider on the top of the chassis separates the copper plates to avoid mutual contact and abrasion and pollution, move the moving vehicle to the operating range of the hoisting mechanism, start the winch, slide the moving frame above the moving vehicle along the guide rail, adjust the height of the clamp through the pulley of the winch, grab the lifting ring above the lifting frame with the clamp, lift the entire chassis with the copper plate, according to the requirements of the next process, slide the moving frame along the guide rail, and transfer the chassis to the surface cleaning assembly.

[0016] Step two: the hoisting mechanism puts the chassis with copper plates into the cleaning tank, ensures that the copper plates can be completely immersed in the injected nitric acid solution, after injecting an appropriate amount of nitric acid solution into the cleaning tank, starts the ultrasonic generator, and the vibrator transmits high-frequency vibration to the nitric acid solution, so that the nitric acid solution produces violent vibration, and the oxidation layer and oil stains on the surface of the copper plate are stripped by the cavitation effect. At the same time, the nitric acid solution reacts with the oxidation layer to accelerate the dissolution of the oxidation layer. At the same time, the nitric acid solution enters the circulating filtration process. The nitric acid solution first flows into the Y-type filter to remove larger particulate impurities, and then enters the precision filter under the drive of the centrifugal pump to further filter small impurities. The filtered nitric acid solution enters the heat exchanger to adjust to the appropriate reaction temperature, and then flows into the distributor, which uniformly distributes the nitric acid solution to the liquid distributor. The liquid distributor sprays the nitric acid solution evenly on the surface of the copper plate through the liquid distribution holes at the bottom, ensuring that the copper plate is fully contacted with the nitric acid solution and achieves comprehensive cleaning. After cleaning is completed, stop the ultrasonic generator and the circulating system, and take out the chassis with copper plates from the cleaning tank by the hoisting mechanism, and prepare to transfer to the next process.

[0017] Step three: the hoisting mechanism grabs the chassis of the cleaned copper plate and transfers it to the flushing tank. Connect the external water source through the water inlet joint. The water source enters the cleaning pipe through the three-way pipe and is then transported to the flushing nozzle. The flushing nozzle sprays water directly onto the surface of the copper plate to flush the copper plate and remove the residual nitric acid solution and impurities generated during the reaction. During the flushing process, open the valve at the top of the drain pipe to drain the waste water generated during the flushing process through the drain pipe for centralized collection and treatment. Adjust the water flow and flushing time according to the cleanliness of the copper plate surface to ensure that the copper plate surface is clean. After flushing is completed, close the water source and valve, and take out the chassis with copper plates from the flushing tank by the hoisting mechanism and transfer it to the preheating mechanism.

[0018] Step four: the hoisting mechanism places the chassis in the preheating box, removes the clamp, and the operator pushes the sealing plate along the slide rails on both sides of the top of the preheating box to close the sealing plate and seal the preheating box. Start the heater, and the heat generated by the heater is transmitted to the heating pipes on both sides of the inner cavity of the preheating box. The heating pipes emit heat to the inside of the preheating box to heat the copper plates on the chassis. According to the process requirements, adjust the output power of the heater to control the temperature in the preheating box, so that the copper plates are evenly heated at an appropriate temperature. The sealing plate effectively reduces heat loss in the box during preheating to maintain stable temperature. When the copper plate reaches the preset preheating temperature, turn off the heater, slide the sealing plate to open the preheating box, and take out the chassis with copper plates from the preheating box by the hoisting mechanism and transfer it to the side of the smelting furnace assembly.

[0019] Step five: the hoisting mechanism grabs the chassis with the preheated copper plate, moves to the top of the furnace body next to the feeding plate, and single-piece grabs the copper plate from the chassis through the clamp, and puts it into the furnace body through the feeding port of the feeding plate. During the feeding process, the protective cover blocks external impurities from entering, reduces heat loss in the furnace, and protects the protective gas inlet pipe from entering the protective gas into the furnace, creating an oxygen-free environment to prevent copper liquid oxidation during copper plate smelting. The copper plate is heated and melted into copper liquid in the furnace body. The ceramic filter plate in the inner cavity of the furnace body filters the copper liquid to remove impurities. The filtered copper liquid flows into the heat preservation furnace on one side through the molten channel. The heat preservation furnace maintains the stability of the copper liquid temperature to provide continuous copper liquid supply for the forming. The hollow crystallizer at the top of the heat preservation furnace receives the copper liquid. The circulating cooling water pipe in the crystallizer inlet cools the copper liquid to condense and form. The traction device at the top of the hollow crystallizer starts to pull the formed copper rod upwards. The top plate on the support column at the top of the furnace body and the guide device on the top plate guide the pulled copper rod. At the same time, the connecting pipe at the top of the protective cover is connected with the external induced draft fan to exhaust harmful gases generated in the furnace to ensure production safety. Through the above single-piece feeding and subsequent continuous process, high-purity oxygen-free copper rods are finally formed.

[0020] Compared with the prior art, the high-purity oxygen-free copper rod preparation equipment has the advantages and positive effects that: 1、The surface cleaning assembly of the present application realizes deep removal of impurities on the surface of the electrolytic copper plate. The ultrasonic generator fixed on the surface of the cleaning tank can produce high-frequency vibration, which can strip the oxide layer and oil stains on the surface of the copper plate by using cavitation effect. In combination with the multi-stage filtration system composed of a Y-type filter, a centrifugal pump and a precision filter, impurity particles above 5 μm in the cleaning liquid can be effectively intercepted to avoid secondary attachment of impurities. The heat exchanger can stably control the temperature of the cleaning liquid at 30-40℃ to ensure the chemical dissolution efficiency of the nitric acid solution. The combination of the distributor and the liquid distributor can make the cleaning liquid uniformly cover the surface of the copper plate to eliminate cleaning dead angles. After the treatment of the assembly, the oxide layer on the surface of the copper plate is fully removed, and the residual amount of impurities is greatly reduced to provide high-purity raw materials for the subsequent smelting link, significantly reduce the impurity content in the oxygen-free copper rod, and improve the product conductivity.

[0021] 2、The cooperation of the hoisting mechanism and the moving trolley mechanism of the present application builds a closed transfer system throughout the whole process. The stand of the hoisting mechanism provides stable support for the moving frame. The winch drives the clamp to grab the copper plate through the pulley to realize automatic transfer between the cleaning, flushing, preheating and smelting furnace assemblies to avoid pollution caused by manual contact. The partition frame of the moving trolley mechanism can orderly separate multiple copper plates to prevent debris from being generated by mutual friction during the transfer process. The hoisting frame and the lifting ring facilitate the overall transfer of the whole batch of copper plates.

[0022] 3. The rinsing mechanism of this invention ensures the cleanliness of the copper plate while achieving efficient water resource utilization. The rinsing nozzle connected to the cleaning pipe sprays high-pressure deionized water onto the surface of the copper plate, thoroughly rinsing away residual nitric acid solution and preventing the generation of corrosive gases during subsequent preheating. The three-way pipe and water inlet connector facilitate water source connection, and the drainage pipe and valve work together to promptly discharge waste liquid and prevent impurity deposition. The rinsing efficiency of this mechanism is significantly improved compared to traditional equipment, reducing the water consumption per copper plate. At the same time, waste liquid can be collected and treated centrally, reducing environmental pollution. The filter element of the precision filter can be replaced regularly, extending the service life of the cleaning solution, reducing the consumption cost of nitric acid solution, and reducing the consumable cost per ton of product.

[0023] 4. The preheating mechanism of this invention improves the preheating quality of copper plates through a sealed design and uniform heating. The heater on the surface of the preheating box provides a heat source for the heating tubes in the inner cavity. The heating tubes on both sides ensure that the copper plate is heated evenly, avoiding local overheating or insufficient temperature. The sealing plate with sliding connection at the top reduces heat loss and keeps the temperature fluctuation in the preheating box within a small range, ensuring that the preheating temperature of the copper plate is stable and meets the temperature requirements of subsequent smelting. This design not only shortens the heating time of the copper plate in the smelting furnace and reduces energy consumption, but also reduces the component segregation of copper liquid caused by temperature fluctuations and improves the component uniformity of oxygen-free copper rods.

[0024] 5. The integrated design of the smelting furnace components in this invention ensures the purity and molding quality of the molten copper. The protective gas inlet pipe of the furnace body introduces inert gases such as argon into the inner cavity to create an oxygen-free environment and prevent the oxidation of the molten copper. The ceramic filter plate can further filter out tiny impurities in the molten copper and improve its purity. The holding furnace and the furnace body are connected through the melting groove to maintain a stable temperature of the molten copper and provide a continuous and stable supply of molten copper to the hollow crystallizer. The circulating cooling water pipe in the hollow crystallizer can quickly condense and mold the molten copper. The traction device can adjust the traction speed according to the diameter requirements of the copper rod to ensure that the diameter of the oxygen-free copper rod is controlled within the target range and the tolerance range is reduced. In addition, the feed plate and protective cover on the top of the furnace body can reduce the air entering during feeding, and the induced draft fan can discharge the volatile gases in time through the connecting pipe to ensure production safety. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the equipment for preparing high-purity oxygen-free copper rods according to the present invention; Figure 2 A schematic diagram of the hoisting mechanism of the equipment for preparing high-purity oxygen-free copper rods according to the present invention; Figure 3 A schematic diagram of the moving trolley mechanism of the equipment for preparing high-purity oxygen-free copper rods according to the present invention; Figure 4 A schematic diagram of the cleaning tank in the equipment for preparing high-purity oxygen-free copper rods according to the present invention; Figure 5 This is a schematic diagram of the surface cleaning assembly of the equipment for preparing high-purity oxygen-free copper rods according to the present invention; Figure 6 This is a top view of the cleaning tank of the equipment for preparing high-purity oxygen-free copper rods according to the present invention. Figure 7 This is a schematic diagram of the rinsing mechanism of the equipment for preparing high-purity oxygen-free copper rods according to the present invention; Figure 8 This is a schematic diagram of the preheating mechanism of the equipment for preparing high-purity oxygen-free copper rods according to the present invention; Figure 9 A schematic diagram of the smelting furnace assembly of the equipment for preparing high-purity oxygen-free copper rods according to the present invention; Figure 10 This is a side view of the smelting furnace assembly of the equipment for preparing high-purity oxygen-free copper rods according to the present invention. Figure 11 This is a schematic diagram of the structure of the ceramic filter plate in the equipment for preparing high-purity oxygen-free copper rods according to the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Melting furnace assembly; 21. Furnace body; 22. Mounting base; 23. Protective gas inlet pipe; 24. Holding furnace; 25. Melting groove; 26. Hollow crystallizer; 27. Circulating cooling water pipe; 28. Traction device; 29. ​​Ceramic filter plate; 3. Lifting mechanism; 31. Column; 32. Guide rail; 33. Moving frame; 34. Winch; 35. Pulley; 36. Clamp; 4. Surface cleaning assembly; 41. Cleaning tank; 42. Ultrasonic generator; 43. Y-type filter; 44. Centrifugal pump; 45. Precision filter; 46. Heat exchanger; 47. Distributor; 4 8. Liquid distributor; 5. Flushing mechanism; 51. Flushing tank; 52. Cleaning pipe; 53. Flushing nozzle; 54. Drain pipe; 55. Valve; 56. T-pipe; 57. Water inlet connector; 6. Preheating mechanism; 61. Preheating box; 62. Heater; 63. Heating pipe; 64. Slide rail; 65. Sealing plate; 7. Moving trolley mechanism; 71. Moving trolley; 72. Base frame; 73. Divider frame; 74. Lifting frame; 75. Lifting ring; 8. Support column; 9. Top plate; 10. Guide device; 11. Feed plate; 12. Feed inlet; 13. Protective cover; 14. Connecting pipe; 15. Protective plate; 16. Mounting column. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0029] The present invention adopts the following technical solution: a preparation device and method for high-purity oxygen-free copper rod, comprising a base plate 1 and a smelting furnace assembly 2. A hoisting mechanism 3 is provided on the top of the base plate 1. A surface cleaning assembly 4 is provided on one side of the top of the base plate 1. A rinsing mechanism 5 is provided on the top of the base plate 1. A preheating mechanism 6 is provided on the other side of the top of the base plate 1. The surface cleaning assembly 4 includes a cleaning tank 41. The bottom of the cleaning tank 41 is fixedly connected to the base plate 1. An ultrasonic generator 42 is installed on the surface of the cleaning tank 41. A Y-type filter 43 is connected to one side of the cleaning tank 41. A centrifugal pump 44 is connected to one side of the Y-type filter 43. A precision filter 45 is connected to one side of the centrifugal pump 44. A heat exchanger 46 is connected to one side of the precision filter 45. A distributor 47 is connected to one side of the heat exchanger 46. A liquid distributor 48 is connected to the bottom of the distributor 47.

[0030] Using the above technical solution, a cleaning tank 41 is set up, the inner cavity of which is used to place the electrolytic copper plate to be cleaned and to contain nitric acid solution. The vibrator of the ultrasonic generator 42 extends to the inner wall of the cleaning tank 41, generating high-frequency vibration during operation. The vibration is transmitted to the nitric acid solution in the inner cavity, causing the nitric acid solution to move violently. The inlet of the Y-type filter 43 is connected to the bottom of the inner cavity of the cleaning tank 41, which performs preliminary filtration of the nitric acid solution flowing out of the cleaning tank 41, intercepting larger particulate impurities. The other side of the Y-type filter 43 is connected to the centrifugal pump 44, which provides power for the circulation of the nitric acid solution and transports the pre-filtered nitric acid solution to the precision filter 45. The precision filter 45 filters out small impurities in the nitric acid solution, further purifying the nitric acid solution. One side of the precision filter 45 is connected to the heat exchanger 46, which regulates the temperature of the filtered nitric acid solution to keep it within a suitable temperature range to enhance its chemical reaction efficiency with the oxide layer on the surface of the copper plate. One side of the heat exchanger 46 is connected to the distributor 4. The distributor 47 is horizontally positioned above the cleaning tank 41 to evenly distribute the temperature-regulated nitric acid solution. The bottom of the distributor 47 is connected to the liquid distributor 48, which is located above the inner cavity of the cleaning tank 41. The liquid distributor 48 has a liquid distribution hole at its bottom, facing the inner cavity of the cleaning tank 41, which can evenly spray the nitric acid solution onto the copper plate surface in the cleaning tank 41. The vibration of the ultrasonic generator 42 causes the nitric acid solution to move, enhancing the contact between the nitric acid solution and the copper plate surface. The nitric acid solution can chemically react with the oxide layer on the copper plate surface. Combined with vibration, it can efficiently peel off the oxide layer and oil stains. The Y-type filter 43 and the precision filter 45 filter the nitric acid solution to prevent impurities from re-adhering to the copper plate surface during circulation. The heat exchanger 46 adjusts the temperature of the nitric acid solution to enhance its chemical effect. The liquid distributor 48 ensures that the nitric acid solution evenly covers all parts of the copper plate, ensuring that all surfaces of the copper plate are thoroughly cleaned, thereby removing the oxide layer, oil stains and impurities on the surface of the copper plate, improving the cleanliness of the copper plate, and providing clean raw materials for subsequent processes.

[0031] In addition, a mobile trolley mechanism 7 is provided on one side of the base plate 1. The mobile trolley mechanism 7 includes a mobile trolley 71, which is located on one side of the base plate 1. A base frame 72 is provided on the top of the mobile trolley 71. A separator frame 73 is fixedly connected to the top of the base frame 72. Lifting frames 74 are fixedly connected to both sides of the top of the base frame 72. Lifting rings 75 are fixedly connected to the top of the lifting frames 74. The mobile trolley 71 moves on one side of the base plate 1 to facilitate the transfer of copper plates. The base frame 72 provides support for the placement of copper plates. The separator frame 73 can separate different copper plates to avoid contact between copper plates and cause wear or contamination. The lifting frames 74 and lifting rings 75 work together with the lifting mechanism 3 to facilitate the overall lifting and transfer of copper plates on the mobile trolley 71, which improves the convenience and efficiency of copper plate transfer and reduces damage to copper plates during manual handling.

[0032] Furthermore, the hoisting mechanism 3 includes four columns 31. The bottom of each column 31 is fixedly connected to the base plate 1, and two guide rails 32 are fixedly connected to the top of each column 31. A movable frame 33 is slidably connected to one side of the top of each guide rail 32. A winch 34 is fixedly connected to the top of the movable frame 33. A pulley 35 is provided at the bottom of the winch 34, and a clamp 36 is provided at the bottom of the pulley 35. The four columns 31 provide stable support for the guide rails 32, and the guide rails 32 provide guidance for the sliding of the movable frame 33. The movable frame 33 can drive the winch 34 to move along the guide rails 32. The winch 34 uses the pulleys 35 and the clamp 36 to grab and lift the copper plate. This structure can realize the automated transfer of copper plates between different processes, reduce manual operation, avoid contamination caused by manual contact with copper plates, and improve the accuracy and efficiency of transfer, ensuring the continuity of production.

[0033] Preferably, the rinsing mechanism 5 includes a rinsing tank 51, the bottom of which is fixedly connected to the base plate 1. A cleaning pipe 52 is fixedly connected to the surface of the rinsing tank 51. A rinsing nozzle 53 is connected to one side of the cleaning pipe 52. One side of the rinsing nozzle 53 extends into the inner cavity of the rinsing tank 51. A drain pipe 54 is connected to the bottom of one side of the rinsing tank 51. A valve 55 is provided on one side of the top of the drain pipe 54. A tee pipe 56 is connected to the surface of the cleaning pipe 52. A water inlet connector 57 is connected to one side of the tee pipe 56. The rinsing tank 51 is used to hold the copper plate to be rinsed. The cleaning pipe 52 delivers water to the rinsing nozzle 53. The rinsing nozzle 53 extends into the inner cavity of the rinsing tank 51 and can directly rinse the copper plate to remove residual cleaning liquid and impurities from the surface of the copper plate. The drain pipe 54 is used to discharge the wastewater after rinsing. The valve 55 can control the start and stop of drainage. The tee pipe 56 and the water inlet connector 57 facilitate the connection to a water source. This mechanism can effectively clean the surface of the copper plate, providing clean raw materials for subsequent processes, and also facilitates the collection and treatment of wastewater.

[0034] In another embodiment, the preheating mechanism 6 includes a preheating box 61, the bottom of which is fixedly connected to the base plate 1. A heater 62 is fixedly connected to the surface of the preheating box 61. Heating tubes 63 are fixedly connected to both sides of the inner cavity of the preheating box 61. Slide rails 64 are fixedly connected to both sides of the top of the preheating box 61. A sealing plate 65 is slidably connected to the top of the slide rails 64. The preheating box 61 provides space for preheating the copper plate. The heater 62 provides heat to the heating tubes 63. The heating tubes 63 on both sides of the inner cavity of the preheating box 61 can uniformly heat the copper plate. The slide rails 64 on both sides of the top of the preheating box 61 provide guidance for the sliding of the sealing plate 65. The sealing plate 65 can seal the preheating box 61, reduce heat loss, improve preheating efficiency, and ensure the stability of the preheating temperature of the copper plate. This structure enables the copper plate to reach a suitable temperature before entering the melting furnace, shortens the melting time, and reduces energy consumption.

[0035] Furthermore, the smelting furnace assembly 2 includes a furnace body 21, with a mounting base 22 connected to the surface of the furnace body 21, and a protective gas inlet pipe 23 connected to the surface of the mounting base 22. A holding furnace 24 is provided on one side of the furnace body 21, and a melting groove 25 is provided between the holding furnace 24 and the furnace body 21. The holding furnace 24 and the furnace body 21 are connected through the melting groove 25. A hollow crystallizer 26 is provided on the top of the holding furnace 24, and a circulating cooling water pipe 27 is provided inside the hollow crystallizer 26. A traction device 28 is provided on the top of the hollow crystallizer 26. A ceramic filter plate 29 is fixedly connected to the inner cavity of the furnace body 21. Furnace 21 is used for smelting copper plates. The protective gas inlet pipe 23 on the mounting base 22 can introduce protective gas into the furnace to prevent the copper liquid from oxidizing. The holding furnace 24 on one side of the furnace body 21 is connected to the furnace body 21 through the melting groove 25, which can maintain the temperature of the copper liquid. The hollow crystallizer 26 on the top of the holding furnace 24 can make the copper liquid condense and form. The internal circulating cooling water pipe 27 accelerates the cooling of the copper liquid. The traction device 28 can pull out the formed copper rod. The ceramic filter plate 29 in the inner cavity of the furnace body 21 can filter impurities in the copper liquid. This structure can ensure the purity of the copper liquid and the forming quality, and improve the performance of the oxygen-free copper rod.

[0036] Support columns 8 are fixedly connected to the four corners of the top of the furnace body 21. A top plate 9 is fixedly connected to the top of the support columns 8. A guide device 10 is fixedly connected to the top of the top plate 9. The support columns 8 provide support for the top plate 9. The guide device 10 on the top plate 9 can guide the pulled copper rod, ensuring that the copper rod maintains a stable posture during the pulling process, avoiding bending or deviation of the copper rod, and improving the forming accuracy of the oxygen-free copper rod.

[0037] Preferably, a feed plate 11 is fixedly connected to the top of the furnace body 21. A feed inlet 12 is opened on the top of the feed plate 11. A protective cover 13 is provided at the rear end of the top of the feed plate 11. A connecting pipe 14 is connected to the top of the protective cover 13. One side of the connecting pipe 14 is connected to an external induced draft fan.

[0038] Using the above technical solution, the feed port 12 on the feed plate 11 facilitates the entry of copper plates into the furnace body 21. The protective cover 13 at the top rear end of the feed plate 11 can prevent impurities from entering the furnace during the feeding process, while reducing the loss of heat in the furnace. The connecting pipe 14 at the top of the protective cover 13 is connected to the external induced draft fan to discharge harmful gases generated in the furnace, improve the working environment, and ensure production safety.

[0039] In addition, a protective plate 15 is fixedly connected to one side of the cleaning tank 41, and a mounting column 16 is fixedly connected to the bottom side of the protective plate 15. The bottom of the mounting column 16 is fixedly connected to the base plate 1. The protective plate 15 can prevent the cleaning liquid from falling into the circulating filter structure below during the copper plate transfer process. The mounting column 16 at the bottom of the protective plate 15 is fixedly connected to the base plate 1, which improves the stability of the protective plate 15 and enhances the safety of equipment operation.

[0040] The following specific embodiments further illustrate the preparation equipment and method for the high-purity oxygen-free copper rod of the present invention.

[0041] like Figures 1-11 As shown, the present invention provides a preparation device and method for high-purity oxygen-free copper rods, including a base plate 1 and a smelting furnace assembly 2. A hoisting mechanism 3 is provided on the top of the base plate 1, a surface cleaning assembly 4 is provided on one side of the top of the base plate 1, a rinsing mechanism 5 is provided on the top of the base plate 1, and a preheating mechanism 6 is provided on the other side of the top of the base plate 1. The surface cleaning assembly 4 includes a cleaning tank 41, the bottom of which is fixedly connected to the base plate 1. An ultrasonic generator 42 is installed on the surface of the cleaning tank 41. A Y-type filter 43 is connected to one side of the cleaning tank 41, a centrifugal pump 44 is connected to one side of the Y-type filter 43, a precision filter 45 is connected to one side of the centrifugal pump 44, a heat exchanger 46 is connected to one side of the precision filter 45, a distributor 47 is connected to one side of the heat exchanger 46, and a liquid distributor 48 is connected to the bottom of the distributor 47.

[0042] The following section will describe in detail the specific setup and function of its smelting furnace components 2, hoisting mechanism 3, flushing mechanism 5, and preheating mechanism 6.

[0043] like Figure 1 , Figure 9 , Figure 10 and Figure 11 As shown, the smelting furnace assembly 2 includes a furnace body 21. A mounting base 22 is connected to the surface of the furnace body 21, and a protective gas inlet pipe 23 is connected to the surface of the mounting base 22. A holding furnace 24 is installed on one side of the furnace body 21, and a melting groove 25 is provided between the holding furnace 24 and the furnace body 21. The holding furnace 24 and the furnace body 21 are connected through the melting groove 25. A hollow crystallizer 26 is installed on the top of the holding furnace 24, and a circulating cooling water pipe 27 is installed inside the hollow crystallizer 26. A traction device is installed on the top of the hollow crystallizer 26. The device 28 has a ceramic filter plate 29 fixedly connected to the inner cavity of the furnace body 21. Support columns 8 are fixedly connected to the four corners of the top of the furnace body 21. A top plate 9 is fixedly connected to the top of the support columns 8. A guide device 10 is fixedly connected to the top of the top plate 9. A feed plate 11 is fixedly connected to the top of the furnace body 21. A feed inlet 12 is opened on the top of the feed plate 11. A protective cover 13 is set at the rear end of the top of the feed plate 11. A connecting pipe 14 is connected to the top of the protective cover 13. One side of the connecting pipe 14 is connected to an external induced draft fan.

[0044] The entire smelting furnace assembly 2 achieves the following effects: the mounting base 22 connects to the protective gas inlet pipe 23, allowing protective gas to be introduced into the furnace body 21 to create an oxygen-free environment, preventing the molten copper from being oxidized during smelting and ensuring the low-oxygen characteristics of the oxygen-free copper rod; the ceramic filter plate 29 inside the furnace body 21 filters the molten copper, removing impurities and improving its purity; the holding furnace 24 is connected to the furnace body 21 via the melting groove 25, maintaining a stable temperature for the molten copper and providing a continuous and uniformly heated molten copper solution for subsequent forming; the hollow crystallizer 26 has a circulating cooling water pipe 27 inside, rapidly cooling and solidifying the molten copper; and, in conjunction with the top traction device 28, it can pull out the solidified copper rod at a set speed, achieving continuous forming of the oxygen-free copper rod; the support column 8 supports the top plate 9; and the top plate... The guiding device 10 on the furnace 21 guides the copper rod during the traction process, ensuring the straightness of the copper rod forming. The feeding plate 11 on the top of the furnace body 21 has a feeding port 12, which facilitates the entry of pre-treated raw materials into the furnace body 21. The protective cover 13 on the top of the feeding plate 11 can reduce the amount of air entering the furnace body 21 during feeding, reducing the risk of copper liquid oxidation. The connecting pipe 14 on the top of the protective cover 13 is connected to the external induced draft fan, which can promptly discharge volatile gases in the furnace, ensuring the safety of the production environment. Overall, the smelting furnace assembly 2, through the synergistic effect of its various parts, achieves anti-oxidation smelting of copper liquid, impurity filtration, stable feeding, continuous forming, and safe exhaust, ensuring that the produced oxygen-free copper rod has high purity, low oxygen content, stable forming quality, and a safe and controllable production process.

[0045] like Figure 2 and Figure 3 As shown, the hoisting mechanism 3 includes four columns 31. The bottom of the columns 31 is fixedly connected to the base plate 1. Two guide rails 32 are fixedly connected to the top of the columns 31. A movable frame 33 is slidably connected to one side of the top of the guide rails 32. A winch 34 is fixedly connected to the top of the movable frame 33. A pulley 35 is provided at the bottom of the winch 34. A clamp 36 is provided at the bottom of the pulley 35. A movable trolley mechanism 7 is provided on one side of the base plate 1. The movable trolley mechanism 7 includes a movable carriage 71. The movable carriage 71 is located on one side of the base plate 1. A base frame 72 is provided on the top of the movable carriage 71. A partition frame 73 is fixedly connected to the top of the base frame 72. Hoisting frames 74 are fixedly connected to both sides of the top of the base frame 72. A lifting ring 75 is fixedly connected to the top of the hoisting frame 74.

[0046] The overall lifting mechanism 3 achieves the following effects: two guide rails 32 provide sliding tracks for the mobile frame 33, allowing the mobile frame 33 to move flexibly along the guide rails 32, expanding the lifting operation range; the winch 34 is connected to the clamp 36 via pulleys 35, and the winch 34 drives the pulleys 35 and clamp 36 to lift and lower the material; the clamp 36 can firmly hold the electrolytic copper plate material, and in conjunction with the sliding of the mobile frame 33, the material is transferred between the surface cleaning component 4, the rinsing mechanism 5, the preheating mechanism 6, and the smelting furnace component 2, realizing the automated transfer of materials between each process; the mobile cart 71 moves flexibly, facilitating the transfer of materials around the equipment; the partition frame 73 on the top of the base frame 72 can separate multiple pieces of material to avoid damage or contamination caused by material contact; the lifting frames 74 on both sides and the lifting ring 75 on the top facilitate the overall lifting and transfer of materials by the lifting mechanism 3, improving the efficiency of material transfer.

[0047] like Figure 1 and Figure 7 As shown, the rinsing mechanism 5 includes a rinsing tank 51, the bottom of which is fixedly connected to the base plate 1. A cleaning pipe 52 is fixedly connected to the surface of the rinsing tank 51. A rinsing nozzle 53 is connected to one side of the cleaning pipe 52. One side of the rinsing nozzle 53 extends into the inner cavity of the rinsing tank 51. A drain pipe 54 is connected to the bottom of one side of the rinsing tank 51. A valve 55 is provided on one side of the top of the drain pipe 54. A three-way pipe 56 is connected to the surface of the cleaning pipe 52. A water inlet connector 57 is connected to one side of the three-way pipe 56.

[0048] The overall rinsing mechanism 5 achieves the following effect: the cleaning pipe 52 on the surface of the rinsing tank 51 is connected to the water inlet connector 57 via a three-way pipe 56. The water inlet connector 57 is connected to a water source, allowing rinsing water to be delivered to the rinsing nozzle 53 through the cleaning pipe 52. The rinsing nozzle 53 penetrates into the inner cavity of the rinsing tank 51, directly spraying water onto the surface of the material located in the rinsing tank 51 to rinse the material, remove residual cleaning liquid and any fine impurities that may be attached to the material surface, ensuring the cleanliness of the material. The drain pipe 54 can discharge the wastewater after rinsing, and the valve 55 at the top of the drain pipe 54 can control the opening and closing of the drain, facilitating the timely discharge of wastewater according to the rinsing situation, and preventing wastewater from accumulating in the rinsing tank 51 and causing secondary pollution to the material. Through the coordinated action of its various components, the rinsing mechanism 5 achieves effective rinsing of the material, removing residual substances and ensuring the cleanliness of the material before entering subsequent processes. At the same time, the drainage system promptly treats the wastewater, ensuring the orderly progress of the rinsing process.

[0049] like Figure 1 and Figure 8As shown, the preheating mechanism 6 includes a preheating box 61. The bottom of the preheating box 61 is fixedly connected to the base plate 1. A heater 62 is fixedly connected to the surface of the preheating box 61. Heating tubes 63 are fixedly connected to both sides of the inner cavity of the preheating box 61. Slide rails 64 are fixedly connected to both sides of the top of the preheating box 61. A sealing plate 65 is slidably connected to the top of the slide rails 64.

[0050] The entire preheating mechanism 6 achieves the following effect: the heater 62 provides a heat source for the entire preheating mechanism 6, and the heat generated is transferred to the heating pipes 63 on both sides of the inner cavity of the preheating box 61. The heating pipes 63 dissipate heat into the interior of the preheating box 61, heating the material placed inside the box and realizing the drying preheating treatment of the material. The slide rail 64 provides a sliding track for the sealing plate 65. The sealing plate 65 slides along the slide rail 64 to open and close. When the sealing plate 65 is closed, it can reduce the heat loss from the preheating box 61, maintain the stability of the temperature inside the box, and ensure that the material is heated evenly. At the same time, the sliding design of the sealing plate 65 also facilitates the insertion and removal of the material, realizing stable preheating of the material, ensuring that the material reaches the required temperature conditions before entering the subsequent process, reducing heat loss, ensuring the consistency of the preheating effect, and providing the material in a suitable state for the subsequent processing stage.

[0051] The working principle of the equipment and method for preparing high-purity oxygen-free copper rods is as follows: 1. The electrolytic copper plate to be treated is placed on the base frame 72. The separator 73 on the top of the base frame 72 separates the copper plates to avoid contact with each other and causing wear and contamination. The moving cart 71 is moved to the operating range of the hoisting mechanism 3. The winch 34 is started. The moving frame 33 slides along the guide rail 32 to the top of the moving cart 71. The winch 34 adjusts the height of the clamp 36 through the pulley 35. The clamp 36 grabs the lifting ring 75 above the hoisting frame 74 and lifts the entire base frame 72 with the copper plate. According to the requirements of the next process, the moving frame 33 slides along the guide rail 32 to transfer the base frame 72 to the side of the surface cleaning component 4.

[0052] 2. The hoisting mechanism 3 places the base frame 72 containing the copper plate into the cleaning tank 41, ensuring that the copper plate is completely submerged in the injected nitric acid solution. After injecting an appropriate amount of nitric acid solution into the cleaning tank 41, the ultrasonic generator 42 is activated. Its transducer transmits high-frequency vibrations to the nitric acid solution, causing the nitric acid solution to vibrate violently. This vibration, aided by cavitation, peels off the oxide layer and oil stains from the surface of the copper plate. Simultaneously, the nitric acid solution reacts chemically with the oxide layer, accelerating its dissolution. Meanwhile, the nitric acid solution enters the circulating filtration process. It first flows into the Y-type filter 43, where larger particles are removed through preliminary filtration, followed by centrifugation. Driven by pump 44, the solution enters the precision filter 45 for further filtration of minute impurities. The filtered nitric acid solution then enters the heat exchanger 46, where it is adjusted to a suitable reaction temperature. The solution then flows into the distributor 47, which distributes the nitric acid solution evenly to the distributor 48. The distributor 48 sprays the nitric acid solution evenly onto the surface of the copper plate through the distribution holes at the bottom, ensuring that all parts of the copper plate are in full contact with the nitric acid solution for thorough cleaning. After cleaning, the ultrasonic generator 42 and the circulation system are stopped, and the lifting mechanism 3 removes the base frame 72 with the copper plate from the cleaning tank 41, ready for transfer to the next process.

[0053] 3. The hoisting mechanism 3 picks up the base frame 72 of the cleaned copper plate and transfers it to the rinsing tank 51. It connects to an external water source through the water inlet connector 57. The water source enters the cleaning pipe 52 through the three-way pipe 56 and is then transported to the rinsing nozzle 53. The rinsing nozzle 53 sprays water directly onto the surface of the copper plate to rinse it and remove residual nitric acid solution and impurities generated by the reaction. During the rinsing process, the valve 55 at the top of the drain pipe 54 is opened, and the wastewater generated during rinsing is discharged through the drain pipe 54 for centralized collection and treatment. The water flow and rinsing time are adjusted according to the cleanliness of the copper plate surface to ensure that the copper plate surface is clean. After rinsing is completed, the water source and valve 55 are closed, and the hoisting mechanism 3 removes the base frame 72 with the copper plate from the rinsing tank 51 and transfers it to the preheating mechanism 6.

[0054] 4. The hoisting mechanism 3 places the base frame 72 into the preheating box 61, removes the clamp 36, and the operator pushes the sealing plate 65 to slide along the slide rails 64 on both sides of the top of the preheating box 61 to close the sealing plate 65 and seal the preheating box 61. The heater 62 is then started, and the heat generated by the heater 62 is transferred to the heating pipes 63 on both sides of the inner cavity of the preheating box 61. The heating pipes 63 dissipate the heat into the interior of the preheating box 61 to heat the copper plate on the base frame 72. According to the process requirements, the output power of the heater 62 is adjusted to control the temperature inside the preheating box 61, so that the copper plate is heated evenly at a suitable temperature. During the preheating process, the sealing plate 65 effectively reduces heat loss inside the box and maintains a stable temperature. When the copper plate reaches the preset preheating temperature, the heater 62 is turned off, the sealing plate 65 is slid open to open the preheating box 61, and the hoisting mechanism 3 removes the base frame 72 with the copper plate from the preheating box 61 and transports it to the side of the smelting furnace assembly 2.

[0055] 5. The hoisting mechanism 3 grabs the base frame 72 with the preheated copper plate and moves it to the side of the top feed plate 11 of the furnace body 21. The clamp 36 then grabs the copper plate individually from the base frame 72 and places it into the furnace body 21 through the feed inlet 12 of the feed plate 11. During the feeding process, the protective cover 13 prevents external impurities from entering and reduces heat loss from the furnace. The protective gas inlet pipe 23 introduces protective gas into the furnace to create an oxygen-free environment and prevent oxidation of the molten copper during melting. The copper plate is heated and melted into molten copper inside the furnace body 21. The ceramic filter plate 29 inside the furnace body 21 filters the molten copper to remove impurities. The filtered molten copper flows through the melting groove 25 into the holding furnace 24 on one side. To maintain a stable copper liquid temperature and provide a continuous supply of copper liquid for molding, the hollow crystallizer 26 at the top of the holding furnace 24 receives the copper liquid. Cooling water is introduced into the circulating cooling water pipe 27 inside the crystallizer to quickly cool the copper liquid and allow it to solidify and form. The traction device 28 at the top of the hollow crystallizer 26 is activated to pull the formed copper rod upward. The top plate 9 on the top support column 8 of the furnace body 21 and the guide device 10 on the top plate 9 guide the pulled copper rod. At the same time, the connecting pipe 14 at the top of the protective cover 13 is connected to the external induced draft fan to discharge the harmful gases generated in the furnace and ensure production safety. Through the above single-piece feeding and the continuous progress of subsequent processes, a high-purity oxygen-free copper rod is finally formed.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments that can be applied to other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A device for preparing high-purity oxygen-free copper rods, comprising a base plate (1) and a smelting furnace assembly (2), characterized in that: The bottom plate (1) is provided with a hoisting mechanism (3) at the top, a surface cleaning component (4) is provided on one side of the top of the bottom plate (1), a rinsing mechanism (5) is provided on the top of the bottom plate (1), and a preheating mechanism (6) is provided on the other side of the top of the bottom plate (1). The surface cleaning assembly (4) includes a cleaning tank (41), an ultrasonic generator (42) is installed on the surface of the cleaning tank (41), a Y-type filter (43) is connected to one side of the cleaning tank (41), a centrifugal pump (44) is connected to one side of the Y-type filter (43), a precision filter (45) is connected to one side of the centrifugal pump (44), a heat exchanger (46) is connected to one side of the precision filter (45), a distributor (47) is connected to one side of the heat exchanger (46), and a liquid distributor (48) is connected to the bottom of the distributor (47).

2. The equipment for preparing high-purity oxygen-free copper rods according to claim 1, characterized in that: A mobile trolley mechanism (7) is provided on one side of the base plate (1). The mobile trolley mechanism (7) includes a mobile trolley (71). The mobile trolley (71) is located on one side of the base plate (1). A base frame (72) is provided on the top of the mobile trolley (71). A partition frame (73) is fixedly connected to the top of the base frame (72). A hoisting frame (74) is fixedly connected to both sides of the top of the base frame (72). A hoisting ring (75) is fixedly connected to the top of the hoisting frame (74).

3. The equipment for preparing high-purity oxygen-free copper rods according to claim 1, characterized in that: The hoisting mechanism (3) includes four columns (31). The bottom of each column (31) is fixedly connected to the base plate (1). The top of each column (31) is fixedly connected to two guide rails (32). A movable frame (33) is slidably connected to one side of the top of each guide rail (32). A winch (34) is fixedly connected to the top of the movable frame (33). A pulley (35) is provided at the bottom of the winch (34). A clamp (36) is provided at the bottom of the pulley (35).

4. The equipment for preparing high-purity oxygen-free copper rods according to claim 1, characterized in that: The rinsing mechanism (5) includes a rinsing tank (51), the bottom of which is fixedly connected to the base plate (1). A cleaning pipe (52) is fixedly connected to the surface of the rinsing tank (51). A rinsing nozzle (53) is connected to one side of the cleaning pipe (52). One side of the rinsing nozzle (53) extends into the inner cavity of the rinsing tank (51). A drain pipe (54) is connected to the bottom of one side of the rinsing tank (51). A valve (55) is provided on one side of the top of the drain pipe (54). A three-way pipe (56) is connected to the surface of the cleaning pipe (52). A water inlet connector (57) is connected to one side of the three-way pipe (56).

5. The equipment for preparing high-purity oxygen-free copper rods according to claim 1, characterized in that: The preheating mechanism (6) includes a preheating box (61), the bottom of which is fixedly connected to the base plate (1), a heater (62) is fixedly connected to the surface of the preheating box (61), heating tubes (63) are fixedly connected to both sides of the inner cavity of the preheating box (61), and slide rails (64) are fixedly connected to both sides of the top of the preheating box (61). A sealing plate (65) is slidably connected to the top of the slide rails (64).

6. The equipment for preparing high-purity oxygen-free copper rods according to claim 1, characterized in that: The smelting furnace assembly (2) includes a furnace body (21), a mounting base (22) connected to the surface of the furnace body (21), a protective gas inlet pipe (23) connected to the surface of the mounting base (22), a heat preservation furnace (24) provided on one side of the furnace body (21), a melting groove (25) provided between the heat preservation furnace (24) and the furnace body (21), the heat preservation furnace (24) and the furnace body (21) are connected through the melting groove (25), a hollow crystallizer (26) is provided on the top of the heat preservation furnace (24), a circulating cooling water pipe (27) is provided inside the hollow crystallizer (26), a traction device (28) is provided on the top of the hollow crystallizer (26), and a ceramic filter plate (29) is fixedly connected to the inner cavity of the furnace body (21).

7. The equipment for preparing high-purity oxygen-free copper rods according to claim 6, characterized in that: The furnace body (21) has four fixed support columns (8) at the top corners, and a top plate (9) is fixedly connected to the top of the support columns (8). A guide device (10) is fixedly connected to the top of the top plate (9).

8. The equipment for preparing high-purity oxygen-free copper rods according to claim 6, characterized in that: The top of the furnace body (21) is fixedly connected to a feed plate (11), the top of the feed plate (11) is provided with a feed port (12), the rear end of the top of the feed plate (11) is provided with a protective cover (13), the top of the protective cover (13) is connected to a connecting pipe (14), and one side of the connecting pipe (14) is connected to an external induced draft fan.

9. The equipment for preparing high-purity oxygen-free copper rods according to claim 1, characterized in that: A protective plate (15) is fixedly connected to one side of the cleaning tank (41), and an installation column (16) is fixedly connected to one side of the bottom of the protective plate (15). The bottom of the installation column (16) is fixedly connected to the base plate (1).

10. A method for preparing a high-purity oxygen-free copper rod preparation apparatus according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Place the electrolytic copper plate to be processed on the base frame (72). The partition frame (73) on the top of the base frame (72) separates the copper plates to prevent them from contacting each other and causing wear and contamination. Move the mobile cart (71) to the operating range of the hoisting mechanism (3). Start the winch (34). The mobile frame (33) slides along the guide rail (32) to the top of the mobile cart (71). The winch (34) adjusts the height of the clamp (36) through the pulley (35). The clamp (36) grabs the lifting ring (75) above the hoisting frame (74) and lifts the entire base frame (72) with the copper plate. According to the requirements of the next process, the mobile frame (33) slides along the guide rail (32) to transfer the base frame (72) to the side of the surface cleaning component (4). Step 2: The hoisting mechanism (3) places the base frame (72) containing the copper plate into the cleaning tank (41), ensuring that the copper plate is completely submerged in the injected nitric acid solution. After injecting an appropriate amount of nitric acid solution into the cleaning tank (41), the ultrasonic generator (42) is started. Its transducer transmits high-frequency vibration to the nitric acid solution, causing the nitric acid solution to vibrate violently. By means of cavitation effect, the oxide layer and oil stains on the surface of the copper plate are peeled off. At the same time, the nitric acid solution reacts chemically with the oxide layer, accelerating the dissolution of the oxide layer. Meanwhile, the nitric acid solution enters the circulating filtration process. The nitric acid solution first flows into the Y-type filter (43), where larger particulate impurities are removed by preliminary filtration. Then, it is pumped by the centrifugal pump (44). Driven by the ultrasonic generator, the solution enters the precision filter (45) to further filter out tiny impurities. The filtered nitric acid solution enters the heat exchanger (46) and is adjusted to a suitable reaction temperature. Then it flows into the distributor (47), which distributes the nitric acid solution evenly to the liquid distributor (48). The liquid distributor (48) sprays the nitric acid solution evenly onto the surface of the copper plate through the liquid distribution holes at the bottom, ensuring that all parts of the copper plate are in full contact with the nitric acid solution and achieving comprehensive cleaning. After cleaning, the ultrasonic generator (42) and the circulation system are stopped. The lifting mechanism (3) removes the base frame (72) with the copper plate from the cleaning tank (41) and prepares it for transfer to the next process. Step 3: The hoisting mechanism (3) grabs the base frame (72) of the cleaned copper plate and transfers it to the rinsing tank (51). The water source is connected to the external water source through the water inlet connector (57). The water source enters the cleaning pipe (52) through the three-way pipe (56) and is then transported to the rinsing nozzle (53) through the cleaning pipe (52). The rinsing nozzle (53) sprays water directly onto the surface of the copper plate to rinse the copper plate and remove the residual nitric acid solution and impurities generated by the reaction. During the rinsing process, the valve (55) at the top of the drain pipe (54) is opened. The wastewater generated by rinsing is discharged through the drain pipe (54) for centralized collection and treatment. The water flow size and rinsing time are adjusted according to the cleanliness of the copper plate surface to ensure that the copper plate surface is clean. After rinsing is completed, the water source and valve (55) are closed. The hoisting mechanism (3) takes the base frame (72) with the copper plate out of the rinsing tank (51) and transfers it to the preheating mechanism (6). Step 4: The hoisting mechanism (3) places the base frame (72) inside the preheating box (61), removes the clamp (36), and the worker pushes the sealing plate (65) to slide along the slide rails (64) on both sides of the top of the preheating box (61) to close the sealing plate (65), sealing the preheating box (61). The heater (62) is then started. The heat generated by the heater (62) is transferred to the heating pipes (63) on both sides of the inner cavity of the preheating box (61). The heating pipes (63) dissipate the heat into the interior of the preheating box (61) to heat the copper plates on the base frame (72). During heating, the output power of the heater (62) is adjusted according to the process requirements to control the temperature inside the preheating box (61) so that the copper plate is heated evenly at a suitable temperature. During the preheating process, the sealing plate (65) effectively reduces the heat loss inside the box and maintains a stable temperature. When the copper plate reaches the preset preheating temperature, the heater (62) is turned off, the sealing plate (65) is slid open to open the preheating box (61), and the lifting mechanism (3) takes the base frame (72) with the copper plate out of the preheating box (61) and transfers it to the side of the smelting furnace assembly (2). Step 5: The hoisting mechanism (3) grabs the base frame (72) with the preheated copper plate and moves it to the side of the top feed plate (11) of the furnace body (21). The clamp (36) grabs the copper plate from the base frame (72) one by one and puts it into the furnace body (21) through the feed port (12) of the feed plate (11). During the feeding process, the protective cover (13) blocks the entry of external impurities and reduces the heat loss in the furnace. The protective gas inlet pipe (23) introduces protective gas into the furnace to create an oxygen-free environment and prevent the copper liquid from oxidizing during the copper plate smelting. The copper plate is heated and melted into copper liquid in the furnace body (21). The ceramic filter plate (29) in the inner cavity of the furnace body (21) filters the copper liquid to remove impurities. The filtered copper liquid flows into the heat preservation furnace (24) on one side through the melting groove (25) to preserve the copper liquid. The preheating furnace (24) maintains a stable temperature for the copper liquid, providing a continuous supply of copper liquid for molding. The hollow crystallizer (26) at the top of the preheating furnace (24) receives the copper liquid. The circulating cooling water pipe (27) inside the crystallizer is filled with cooling water to quickly cool the copper liquid and allow it to solidify and form. The traction device (28) at the top of the hollow crystallizer (26) is activated to pull the formed copper rod upward. The top plate (9) on the top support column (8) of the furnace body (21) and the guide device (10) on the top plate (9) guide the pulled copper rod. At the same time, the connecting pipe (14) at the top of the protective cover (13) is connected to the external induced draft fan to discharge the harmful gases generated in the furnace and ensure production safety. Through the above single-piece feeding and the continuous progress of subsequent processes, a high-purity oxygen-free copper rod is finally formed.

Images