Efficient deoxidizing type smelting device for oxygen-free copper material processing

Abstract

The invention relates to the technical field of metal material processing, and discloses an efficient deoxidizing type smelting device for oxygen-free copper material processing, which comprises a mounting frame, a smelting furnace is fixedly mounted on the middle side of the outer part of the mounting frame, a double-shaft motor is mounted at the top of the smelting furnace, and a driving shaft is fixedly mounted at the output end of the bottom of the double-shaft motor; the bottom end of the driving shaft is movably connected with a screw rod through a connecting piece, the outer portion of the screw rod is in threaded connection with a threaded seat, and a plurality of swing rods are hinged to the outer side of the threaded seat. By means of the multiple inert gas nozzles with the adjustable angles and positions, the surface of copper liquid can be more evenly covered, a stable inert gas protection layer is formed, the copper liquid is isolated from air, meanwhile, due to the adjustability of the direction of the nozzles, inert gas can be accurately sprayed according to needs, it is guaranteed that the copper liquid is evenly subjected to gas, and local overheating or splashing is avoided; and meanwhile, the product defects caused by non-uniform gas injection are reduced, and the product percent of pass is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of metal material processing, in particular to a high-efficiency deoxidation-type smelting device for processing oxygen-free copper materials. Background Art

[0002] Oxygen-free copper, due to its excellent properties such as high conductivity, excellent processing and welding properties, is widely used in high-end electrical equipment, wire and cable, motors, high-vacuum electronics, and other devices, and is highly favored in the power electronics field. Melting furnaces are key equipment in the production of oxygen-free copper. Their main function is to provide a high-temperature environment for melting the copper material. Common melting furnaces include reverberatory furnaces, induction furnaces, and vacuum melting furnaces.

[0003] In the oxygen-free copper processing process, the purity and composition uniformity of the copper liquid have a crucial impact on the product quality. However, the smelting equipment used for oxygen-free copper processing in the existing technology has some shortcomings:

[0004] First, the setting of the inert gas nozzle is not perfect. For example, the smelting device mentioned in Chinese patent document CN107052290B adopts charcoal and graphite flakes to cover the surface of the copper liquid to ensure the oxygen-isolating state during melting, and nitrogen is filled into the copper liquid through an online degassing device for degassing and deoxidation. However, the flexibility of the nozzle is insufficient, and the angle and position cannot be flexibly adjusted according to different situations. It is difficult to evenly cover the surface of the copper liquid to form a stable inert gas protective layer, which easily causes the copper liquid to locally contact with air for oxidation, and is prone to local overheating or splashing, thereby affecting the uniformity of the copper liquid temperature and composition, resulting in unstable product quality and an increase in product defect rate.

[0005] Second, the copper liquid is not stirred well. Currently, some smelting devices do not stir the copper liquid sufficiently, making it difficult to ensure the uniformity of temperature and composition during the smelting process. This can easily lead to local overheating or uneven composition, affecting product quality. In addition, the copper material melts slowly, prolonging the smelting time and reducing production efficiency.

[0006] Therefore, those skilled in the art have proposed a high-efficiency deoxidation smelting device for oxygen-free copper processing to solve the above problems. Summary of the Invention

[0007] In view of the shortcomings of the prior art, the present invention provides a high-efficiency deoxidation-type smelting device for processing oxygen-free copper materials, which solves the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high-efficiency deoxidation smelting device for oxygen-free copper processing, comprising a mounting frame, a smelting furnace fixedly mounted on the outer middle side of the mounting frame, a dual-axis motor mounted on the top of the smelting furnace, a drive shaft fixedly mounted on the bottom output end of the dual-axis motor, the bottom end of the drive shaft movably connected to a screw through a connecting piece, the external thread of the screw is connected to a threaded seat, a plurality of swing rods are hinged on the outer side of the threaded seat, a connecting disk is fixedly connected to the outer side of the connecting disk, a swing frame matching the number of swing rods is hinged, a slide groove is provided on the outer side of the swing frame, a slider is slidably connected to the inside of the slide groove, an annular tube is mounted on the bottom of the connecting disk, and a plurality of nozzles are connected on the outer side of the annular tube.

[0009] Preferably, the inner top wall of the smelting furnace is fixedly connected to gear one through a plurality of fixed columns, the bottom end of the drive shaft passes through the middle part of gear one, the outer middle side of the drive shaft is fixedly connected to a connecting frame, the multiple ends of the connecting frame are movably connected to connecting rods through bearings, the bottom of the connecting rod is spot-welded to a mounting rod, the outer side of the mounting rod is detachably connected to two mixing rods, the top of the connecting rod is fixedly connected to gear two, and the bottom of the screw is connected to the top output end of the dual-axis motor through a transmission assembly.

[0010] Preferably, the outer side of the gear 1 is meshedly connected with the outer sides of the two gears 2, and the bottom of the mixing rod is fixedly connected with a mixing blade.

[0011] Preferably, the bottom end of the swing rod is movably connected to the outer side of the slider, the internal through hole of the threaded seat is slidably connected to the limiting rod, the top end of the limiting rod is fixedly connected to the bottom of the connecting member, and the bottom end of the limiting rod is fixedly connected to the top of the threaded seat.

[0012] Preferably, the transmission assembly includes two synchronous wheels 1, one of which is fixedly mounted on the top output end of the dual-axis motor, and the outer side of the other synchronous wheel 1 is fixedly connected to a transmission shaft 1, the two synchronous wheels 1 are connected by a belt, the transmission shaft 1 is rotatably mounted on the outer surface of the smelting furnace, the bottom ends of the transmission shaft 1 and the screw are fixedly connected to a first bevel gear, the outer surface of the smelting furnace is movably connected to a transmission shaft 2 through a bearing, and the left and right ends of the transmission shaft 2 are fixedly connected to a second bevel gear.

[0013] Preferably, a vacuum pumping device is installed on the outside of the smelting furnace, and the vacuum pumping device is connected to the inside of the smelting furnace through a vacuum tube. The top of the smelting furnace is connected to a feed pipe, and a control valve is installed on the outside of the feed pipe.

[0014] Preferably, a gas tank is installed at the bottom of the mounting frame, an air pump is installed outside the gas tank, the input end of the air pump is connected to the inner side of the gas tank through a pipe, and the output end of the air pump is connected to the inside of the annular tube through an air pipe.

[0015] Preferably, outer sides of the two second bevel gears are respectively meshed and connected with outer sides of the first bevel gears at corresponding positions.

[0016] The present invention provides a high-efficiency deoxidation smelting device for processing oxygen-free copper materials. It has the following beneficial effects:

[0017] 1. The present invention uses multiple inert gas nozzles with adjustable angles and positions to more evenly cover the surface of the copper liquid, forming a stable inert gas protective layer to isolate the copper liquid from contact with air. At the same time, the adjustability of the nozzle direction allows the inert gas to be accurately sprayed on demand, ensuring that the copper liquid is evenly gasified, avoiding local overheating or splashing, making the temperature and composition of the copper liquid more uniform, ensuring the stability of product quality, reducing product defects caused by uneven gas injection, and improving product qualification rate.

[0018] 2. The present invention adds a rotary stirring structure inside the smelting furnace, so that the copper liquid can be fully stirred during the smelting process, ensuring that the temperature and composition of the copper liquid are uniform, avoiding local overheating or uneven composition, thereby improving the stability of product quality, and at the same time accelerating the melting speed of the copper material, shortening the smelting time, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 It is a schematic diagram of the mounting frame structure of the present invention;

[0021] Figure 3 Schematic diagram of the internal structure of the smelting furnace of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of a gear of the present invention;

[0023] Figure 5 Schematic diagram of the connecting rod structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the drive shaft structure of the present invention;

[0025] Figure 7 This is a schematic structural diagram of the transmission shaft 2 of the present invention.

[0026] Among them, 1. Melting furnace; 2. Vacuum pumping device; 3. Mounting frame; 401. Transmission shaft 1; 402. Synchronous wheel 1; 403. First bevel gear; 404. Transmission shaft 2; 405. Second bevel gear; 5. Drive shaft; 601. Gear 1; 602. Connecting frame; 603. Gear 2; 604. Connecting rod; 605. Mounting rod; 606. Mixing rod; 7. Fixed column; 801. Swing frame; 802. Swing rod; 803. Nozzle; 804. Connecting piece; 805. Threaded seat; 806. Connecting plate; 807. Annular tube; 9. Limit rod. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please see the attached Figure 1 -Attached Figure 7 The embodiment of the present invention provides a high-efficiency deoxidation smelting device for processing oxygen-free copper materials, including a mounting frame 3, a smelting furnace 1 is fixedly installed on the outer middle side of the mounting frame 3, a dual-axis motor is installed on the top of the smelting furnace 1, a drive shaft 5 is fixedly installed on the bottom output end of the dual-axis motor, the bottom end of the drive shaft 5 is movably connected to a screw through a connecting piece 804, the external thread of the screw is connected to a threaded seat 805, the outer side of the threaded seat 805 is hinged with multiple swing rods 802, the outer bottom of the screw is fixedly connected to a connecting plate 806, the outer side of the connecting plate 806 is hinged with a swing frame 801 matching the number of the swing rods 802, a slide groove is provided on the outer side of the swing frame 801, a slider is slidably connected to the inside of the slide groove, an annular tube 807 is installed at the bottom of the connecting plate 806, and the outer side of the annular tube 807 is connected to multiple nozzles 803. The bottom end of the swing rod 802 is movably connected to the outer side of the slider, and the internal through hole of the threaded seat 805 is slidably connected to the limit rod 9. The top of the limit rod 9 is fixedly connected to the bottom of the connecting piece 804, and the bottom end of the limit rod 9 is fixedly connected to the top of the threaded seat 805.

[0029] Specifically, the mounting frame 3 serves as a supporting frame for the entire device, ensuring the overall stability of the device.

[0030] The smelting furnace 1 is used to accommodate copper materials and provide a smelting environment. The drive shaft 5 is used to drive the connecting frame 602 to rotate, so that the connecting rod 604 and the mixing blades stir the copper liquid. The limit rod 9 is used to limit the rotation of the threaded seat 805, so that it can only move up and down along the limit rod 9, ensuring that the swing rod 802 can effectively transmit the movement. The annular tube 807 is used to transport inert gas and evenly distribute it to each nozzle 803. A chute is provided on the outside of the swing frame 801, and a slider is connected to the chute. When the swing frame 801 swings, the slider slides in the chute, and at the same time drives the nozzle 803 to change its angle, realizing the precise injection of inert gas.

[0031] The nozzle 803 is used to spray the inert gas onto the surface of the copper liquid to form a protective layer to prevent the copper liquid from being oxidized.

[0032] The air pump is turned on and draws inert gas from the gas tank. The gas is then delivered to the annular tube 807 via the gas pipe. After the annular tube 807 evenly distributes the inert gas, the gas is evenly sprayed out from the nozzle 803, quickly forming a stable inert gas protective layer on the surface of the copper liquid, isolating the copper liquid from the air and effectively preventing oxidation reactions in the copper liquid.

[0033] When the screw starts to rotate, the threaded seat 805 moves upward along the outer surface of the limit rod 9. As the threaded seat 805 moves upward, it drives the top of the swing rod 802 hinged on its outside to swing. During the swinging process, the swing rod 802 drives the slider to move accordingly along the inner wall of the slide groove of the swing frame 801 by virtue of its traction force. The swing frame 801 swings after being subjected to force, which causes the angle of the nozzle 803 to change, realizing the automatic swing function of the nozzle 803. The nozzle 803 after swinging can accurately spray inert gas onto the surface of the copper liquid as needed according to the real-time status of the copper liquid surface, ensure that the copper liquid is evenly gasified, prevent local overheating or splashing, and make the temperature and composition of the copper liquid uniform and stable, thereby ensuring the stability of product quality.

[0034] The inner top wall of the smelting furnace 1 is fixedly connected to Gear 1 601 via multiple fixing columns 7. The bottom end of the drive shaft 5 extends through the middle of Gear 1 601. A connecting bracket 602 is fixedly connected to the outer middle side of the drive shaft 5. The multiple ends of the connecting bracket 602 are movably connected to connecting rods 604 via bearings. The bottom of the connecting rod 604 is spot-welded to a mounting rod 605. Two mixing rods 606 are detachably connected to the outside of the mounting rod 605. The top of the connecting rod 604 is fixedly connected to Gear 2 603. The bottom of the screw is connected to the top output end of the dual-shaft motor via a transmission assembly. The outer side of Gear 1 601 meshes with the outer sides of the two Gear 2s 603. Mixing blades are fixedly connected to the bottom of the mixing rods 606. The outer sides of the two second bevel gears 405 respectively mesh with the outer sides of the corresponding first bevel gears 403.

[0035] Specifically, fixed column 7 supports and secures gear 1 601, ensuring its stable installation within smelting furnace 1. Gear 1 601 is secured by fixed column 7. Drive shaft 5 penetrates its center, allowing it to rotate about its own axis. Connecting rod 604, driven by connecting frame 602, performs circular motion while also rotating under the power of gear 2 603. Mounting rod 605 is used to mount mixing rod 606. Mounting rod 605 moves with connecting rod 604, driving mixing rod 606 to stir the molten copper. Mixing rod 606 and its mixing blades are in direct contact with the molten copper, thoroughly stirring it through their own rotation and circular motion. Gear 2 603 meshes with gear 1 601. When gear 1 601 rotates, gear 2 603 also rotates, driving connecting rod 604 not only in circular motion with connecting frame 602 but also in its own rotation, increasing the complexity and uniformity of the stirring.

[0036] The bottom output end of the dual-axis motor is activated, and power is transmitted to the drive shaft 5, causing the drive shaft 5 to rotate. The drive shaft 5 drives the connecting frame 602 to rotate coaxially, and the connecting rod 604 on the connecting frame 602 rotates accordingly. The mounting rod 605 and mixing rod 606 at the bottom of the connecting rod 604 also rotate together, performing preliminary stirring on the copper liquid. During the rotation of the connecting frame 602, the gear 2 603 and the gear 1 601 engage with each other, and the gear 2 603 rotates accordingly, thereby driving the connecting rod 604 to not only perform a circular motion with the connecting frame 602, but also rotate around its own axis, allowing the mixing blades to stir the copper liquid more fully, significantly improving the stirring effect and ensuring that the temperature and composition of the copper liquid are uniform.

[0037] The transmission assembly includes two synchronous wheels 402, one of which is fixedly mounted on the top output end of the dual-axis motor, and the outer side of the other synchronous wheel 402 is fixedly connected to a transmission shaft 401. The two synchronous wheels 402 are connected by a belt. The transmission shaft 401 is rotatably mounted on the outer surface of the smelting furnace 1. The bottom ends of the transmission shaft 401 and the screw are fixedly connected to a first bevel gear 403. The outer surface of the smelting furnace 1 is movably connected to a transmission shaft 2 404 through a bearing. The left and right ends of the transmission shaft 2 404 are fixedly connected to second bevel gears 405. The outer sides of the two second bevel gears 405 are respectively meshed with the outer sides of the first bevel gears 403 at corresponding positions.

[0038] Specifically, the top output end of the dual-axis motor is started to drive the synchronous wheel 402 installed thereon to rotate.

[0039] Driven by the belt, the other synchronous gear 402 rotates synchronously, driving the transmission shaft 401 in parallel. As the transmission shaft 401 rotates, the first bevel gear 403, fixed to its bottom end, rotates accordingly. The first bevel gear 403 meshes with the second bevel gear 405, transmitting the rotational motion to the second bevel gear 405. The second bevel gear 405 is fixed to the second transmission shaft 404, which is movably connected to the outer surface of the smelting furnace 1 via a bearing. The rotation of the second bevel gear 405 drives the rotation of the second transmission shaft 404. The rotation of the second transmission shaft 404, through the meshing of the second bevel gear 405 on the other side and the first bevel gear 403, ultimately drives the screw.

[0040] A vacuum pump 2 is mounted outside the smelting furnace 1 and connected to the interior of the smelting furnace 1 via a vacuum tube. A feed pipe is connected to the top of the smelting furnace 1, and a control valve is mounted on the outside of the feed pipe. A gas tank is mounted at the bottom of the mounting frame 3, and an air pump is mounted on the outside of the gas tank. The air pump's input is connected to the inside of the gas tank via a pipe, and the pump's output is connected to the interior of the annular pipe 807 via a gas pipe.

[0041] Specifically, the vacuum pump 2 is connected to the inside of the smelting furnace 1 through a vacuum tube. Its core component, the vacuum pump, is responsible for extracting the air in the smelting furnace 1 to form a vacuum environment, reduce the oxygen content in the copper liquid, and improve the purity of the copper material. The feed pipe is used to add copper material. The control valve is used to control the addition amount and feed rate of the copper material to ensure that the copper material is dry and free of impurities, and to prevent moisture and impurities from mixing into the copper liquid. The gas tank is used to store inert gas and provide a gas source for the inert gas supply system. The main function of the air pump is to extract the inert gas in the gas tank and transport it to the annular pipe 807, and then evenly spray it out from the nozzle 803 to form an inert gas protective layer, isolate the copper liquid from contact with air, and prevent the copper liquid from oxidation.

[0042] Start the vacuum pump 2, which extracts air from the smelting furnace 1 through a vacuum line, creating a vacuum environment. This reduces the oxygen content in the copper solution and increases the copper's purity. Add copper material through the feed pipe at the top of the smelting furnace 1, with the feed amount determined based on production requirements. Ensure the copper material is dry and free of impurities during feeding to prevent moisture and impurities from entering the molten copper. After feeding, close the feed pipe control valve to ensure the seal of the smelting furnace 1.

[0043] Turn on the air pump to extract inert gas from the gas tank, transport it to the annular pipe 807 through the gas pipe, and then evenly spray it out from the nozzle 803 to form an inert gas protective layer on the surface of the copper liquid, isolating the copper liquid from contact with air and preventing the copper liquid from oxidation.

[0044] Working principle: When using this device, it includes the following operating principles:

[0045] Copper material is added through the feed pipe at the top of smelting furnace 1. The feed amount is determined according to production requirements. During feeding, the copper material must be dry and free of impurities to prevent moisture and impurities from mixing into the molten copper. After feeding, the control valve of the feed pipe is closed to maintain the sealing of smelting furnace 1. The vacuum device 2 is activated and the air inside the vacuum device 2 is extracted through the vacuum pipe to create a vacuum environment, reducing the oxygen content in the molten copper and increasing the purity of the copper material.

[0046] After vacuuming is completed, the air pump is turned on to extract inert gas from the gas tank, which is transported to the annular pipe 807 through the air pipe and then evenly sprayed out by the nozzle 803 to form an inert gas protective layer on the surface of the copper liquid, isolating the copper liquid from contact with air and preventing the copper liquid from oxidation;

[0047] The output end at the bottom of the dual-axis motor is activated to rotate the drive shaft 5, which in turn drives the connecting frame 602 to rotate coaxially, causing the multiple connecting rods 604 and mixing blades connected to the connecting frame 602 to rotate, thereby preliminarily mixing the molten copper inside the smelting furnace 1. As the connecting frame 602 rotates, Gear 2 603 rotates under the meshing action of Gear 1 601. The rotation of Gear 2 603 drives the connecting rods 604, which in turn drives the mixing blades. In this way, the connecting rods 604 and mixing blades rotate while performing a circular motion along the connecting frame 602, improving the mixing effect of the copper material and ensuring a uniform temperature and composition of the molten copper.

[0048] By starting the top output end of the dual-axis motor, one of the synchronous wheels 402 is driven to rotate. This synchronous wheel 402 drives the other synchronous wheel 402 to rotate under the transmission action of the belt, and at the same time drives the transmission shaft 401 to rotate synchronously. The transmission shaft 401 drives the screw to rotate under the transmission action of the first bevel gear 403, the second bevel gear 405 and the second transmission shaft 404. At this time, the threaded seat 805 moves upward along the outer surface of the limit rod 9. As the threaded seat 805 moves upward, it drives the top of the swing rod 802 to swing. At this time, under the action of the traction force of the swing rod 802, the slider moves along the inner wall of the chute, and then drives the swing frame 801 to swing, so that the angle of the nozzle 803 changes. In this way, the inert gas can be accurately sprayed as needed, ensuring that the copper liquid is evenly gasified, avoiding local overheating or splashing, making the copper liquid temperature and composition more uniform, and ensuring the stability of product quality.

[0049] During the smelting process, key parameters such as the molten copper's temperature, composition, and inert gas flow rate are continuously monitored. Based on this real-time monitoring data, the dual-axis motor speed, air pump output power, and vacuum unit 2 operating status are promptly adjusted to ensure stable molten copper quality and that the resulting oxygen-free copper fully meets the expected performance standards.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency deoxidation smelting device for processing oxygen-free copper materials, comprising a mounting frame (3), characterized in that: A smelting furnace (1) is fixedly mounted on the outer middle side of the mounting frame (3), a double-shaft motor is mounted on the top of the smelting furnace (1), a driving shaft (5) is fixedly mounted on the bottom output end of the double-shaft motor, the bottom end of the driving shaft (5) is movably connected to a screw rod through a connecting piece (804), the outer thread of the screw rod is connected to a threaded seat (805), the outer side of the threaded seat (805) is hinged with a plurality of swing rods (802), the outer bottom of the screw rod is fixedly connected to a connecting plate (806), the outer side of the connecting plate (806) is hinged with a swing frame (801) whose number matches the number of the swing rods (802), a slide groove is provided on the outer side of the swing frame (801), a slider is slidably connected to the inside of the slide groove, an annular tube (807) is mounted on the bottom of the connecting plate (806), and the outer side of the annular tube (807) is connected to a plurality of nozzles (803).

2. The high-efficiency deoxidation smelting device for oxygen-free copper material processing according to claim 1, characterized in that: The inner top wall of the smelting furnace (1) is fixedly connected to gear one (601) through multiple fixing columns (7), the bottom end of the drive shaft (5) passes through the middle of gear one (601), the outer middle side of the drive shaft (5) is fixedly connected to a connecting frame (602), multiple ends of the connecting frame (602) are movably connected to connecting rods (604) through bearings, the bottom of the connecting rod (604) is spot-welded to a mounting rod (605), the outer side of the mounting rod (605) is detachably connected to two mixing rods (606), the top of the connecting rod (604) is fixedly connected to gear two (603), and the bottom of the screw is connected to the top output end of the dual-axis motor through a transmission assembly.

3. The high-efficiency deoxidation smelting device for oxygen-free copper material processing according to claim 2, characterized in that: The outer side of the gear 1 (601) is meshedly connected with the outer sides of the two gear 2s (603), and the bottom of the mixing rod (606) is fixedly connected with a mixing blade.

4. The high-efficiency deoxidation smelting device for processing oxygen-free copper materials according to claim 1, characterized in that: The bottom end of the swing rod (802) is movably connected to the outer side of the slider, the inner through hole of the threaded seat (805) is slidably connected to the limiting rod (9), the top end of the limiting rod (9) is fixedly connected to the bottom of the connecting member (804), and the bottom end of the limiting rod (9) is fixedly connected to the top of the threaded seat (805).

5. The high-efficiency deoxidation smelting device for processing oxygen-free copper materials according to claim 2, characterized in that: The transmission assembly includes two synchronous wheels (402), one of which is fixedly mounted on the top output end of the dual-axis motor, and the outer side of the other synchronous wheel (402) is fixedly connected to a transmission shaft (401), and the two synchronous wheels (402) are connected by a belt. The transmission shaft (401) is rotatably mounted on the outer surface of the smelting furnace (1), and the bottom ends of the transmission shaft (401) and the screw are fixedly connected to a first bevel gear (403). The outer surface of the smelting furnace (1) is movably connected to a transmission shaft (404) via a bearing, and the left and right ends of the transmission shaft (404) are fixedly connected to a second bevel gear (405).

6. The high-efficiency deoxidation smelting device for processing oxygen-free copper materials according to claim 1, characterized in that: A vacuum pumping device (2) is installed on the outside of the smelting furnace (1), and the vacuum pumping device (2) is connected to the inside of the smelting furnace (1) through a vacuum tube. The top of the smelting furnace (1) is connected to a feed pipe, and a control valve is installed on the outside of the feed pipe.

7. The high-efficiency deoxidation smelting device for processing oxygen-free copper materials according to claim 1, characterized in that: An air tank is installed at the bottom of the mounting frame (3), an air pump is installed outside the air tank, the input end of the air pump is connected to the inner side of the air tank through a pipeline, and the output end of the air pump is connected to the inside of the annular tube (807) through an air pipe.

8. The high-efficiency deoxidation smelting device for processing oxygen-free copper materials according to claim 5, characterized in that: The outer sides of the two second bevel gears (405) are respectively meshed and connected with the outer sides of the first bevel gears (403) at corresponding positions.

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