Remelting recovery device for waste copper production

Abstract

The invention relates to the field of waste copper recovery, in particular to a remelting recovery device for waste copper production, a melting furnace and a refining furnace are communicated through a transfer box, an opening and closing valve plate is arranged on one side of the interior of the melting furnace, lifting opening and closing of the opening and closing valve plate are achieved through a lifting rope mechanism, and the opening and closing valve plate controls the circulation state of molten liquid in the transfer box. The smelting furnace and the refining furnace are connected through the transfer box, the traditional transfer ladle transfer process is abandoned, it is ensured that molten liquid is at the optimal working temperature, a pipeline circulating treatment system is arranged in the refining furnace, impurity oxidation is promoted through local oxygen blowing, and the reaction efficiency is improved in cooperation with mechanical stirring; impurities can be synchronously collected in the stirring process to avoid impurity accumulation, clutch control switching of the spiral conveying mechanism is achieved through cooperation of the control cabin and the electromagnetic assembly, efficient separation and discharging of the oxidized impurities are achieved, production of the oxidized impurities is effectively promoted in the whole circulation process, the rapid impurity recycling function is achieved, and the refining efficiency is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of scrap copper recovery, in particular to a remelting recovery device for scrap copper production. Background Art

[0002] The recovery of waste copper-containing products is a common operation in the copper industry. In the prior art, waste copper bodies are generally recovered through melting equipment.

[0003] In the traditional remelting and recycling process, scrap copper needs to be heated at high temperature in a melting furnace and then transferred to a refining furnace through a transfer bag for oxidation treatment. During this process, the molten copper needs to be transferred and go through multiple steps, which is relatively cumbersome. At the same time, certain impurities will be generated during the copper liquid oxygenation process. Traditional equipment needs to remove slag after the oxygen flushing is completed. As a result, the accumulated impurities cannot be processed during the oxygen flushing process, which will reduce the oxygenation efficiency and incomplete oxidation of impurities, affecting the refining efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a remelting and recovery device for scrap copper production.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A remelting and recovery device for scrap copper production includes a melting furnace and a refining furnace, wherein the melting furnace and the refining furnace are connected via a transfer box. An opening and closing valve plate is provided on one side of the interior of the melting furnace. The opening and closing valve plate is raised and lowered by a lifting rope mechanism, and the opening and closing valve plate controls the flow state of the molten liquid inside the transfer box. A circulation chamber is installed on one side of the refining furnace through a recovery chamber. Both sides of the circulation chamber are connected to the interior of the refining furnace through a liquid inlet pipe and a liquid discharge pipe. A rotating shaft is provided in the middle of the circulation chamber. An impeller is provided at one end of the rotating shaft directly below the liquid inlet pipe. A plurality of stirring discs are installed in the middle of the rotating shaft. A grid is installed on the side away from each stirring disc through a sliding sleeve. A plurality of collecting frames are installed on one side of the stirring disk, the bottom of the collecting frame is connected to the inside of the rotating shaft, and a pair of limiting plates are installed on the outside of the collecting frame, which extend inward and are close together in an eight-shaped shape; A movable rod is provided in the middle of the rotating shaft, a spiral blade is installed in the middle of the movable rod, and multiple groups of limit rods are installed in the middle of the movable rod. The top of the limit rod is limitedly engaged with the connecting ring through the limit groove three. The outer side of the connecting ring is provided with multiple protrusions, each of which extends out of the limit groove two opened on the outer wall of the rotating shaft and is connected to the inner wall of the sliding sleeve. The sliding sleeve realizes horizontal displacement through the limit groove two. Multiple extension blocks are provided on one side of the sliding sleeve, and each extension block extends into the interior of the collection frame; One side of the rotating shaft extends out of the recovery cabin and is rotatably connected to the control cabin. A motor assembly is provided in the control cabin to drive the movable rod to move.

[0006] Preferably, the lifting rope mechanism includes a lifting rope motor component, which is installed on the upper part of the adapter box. A reel is installed at the output end of the lifting rope motor component, and a guide wheel is installed on the side away from the reel. A lifting rope is wound around the reel and the guide wheel, and one end of the lifting rope is connected to the top of the opening and closing valve plate through a connecting piece. The opening and closing valve plate is limitedly installed on one side of the interior of the melting furnace through a limiting groove 1, and the opening and closing valve plate realizes vertical movement through the limiting groove 1.

[0007] Preferably, the upper portion of the melting furnace is provided with a cover, the cover is provided with an electrode member, the electrode member contacts the scrap copper to achieve arc melting, and a discharge port is provided on one side of the upper portion of the melting furnace.

[0008] Preferably, a circulation channel is provided at the bottom of the adapter box, and the two ends of the circulation channel are respectively connected to the melting furnace and the refining furnace. A filter member 1 is installed in the middle of the circulation channel through a mounting boss. The filter member 1 is fitted in the circulation channel. The bottom of the mounting boss is connected to the telescopic end of the cylinder member through a support plate. The cylinder member is assembled on the outer side of the adapter box. When the cylinder member is extended or retracted, the filter member 1 moves vertically.

[0009] Preferably, a circulation chamber is installed inside the recovery chamber, one side of the upper part of the circulation chamber is connected to the liquid inlet pipe, and the other side is connected to the liquid discharge pipe, the liquid inlet pipe and the liquid discharge pipe are installed in a diagonal position relationship, and the liquid inlet pipe and the liquid discharge pipe are respectively equipped with an electromagnetic pump; One side of the upper portion of the liquid inlet pipe is connected to an air supply pipe 1, and a plurality of air supply pipes 2 are provided on the side away from the air supply pipe 1. The air supply pipe 2 is connected to the interior of the circulation chamber, and the air supply pipe 1 and the air supply pipe 2 are connected to an external air source mechanism.

[0010] Preferably, the control cabin is fixedly mounted on one side of the outside of the recovery cabin through a mounting bracket, one end of the control cabin is rotatably connected to the rotating shaft through a bearing, a servo motor is provided on the upper part of the control cabin, the output end of the servo motor extends into the interior of the control cabin and is installed with a driving bevel gear, the bottom side of the driving bevel gear is connected to a driven bevel gear through tooth groove engagement, the driven bevel gear is installed in the middle of the hollow shaft, one end of the hollow shaft is connected to the electromagnet assembly, a magnetic disk is provided on the side away from the electromagnet assembly, and the magnetic disk is connected to the movable rod.

[0011] Preferably, a filter element 2 is installed on one side of the interior of the collection frame, the bottom end of the collection frame is through-through and connected to the interior of the rotating shaft, a connecting groove is provided on the side of the bottom of the collection frame facing the sliding sleeve, an extension block is installed in the connecting groove, the extension block is connected to the sliding sleeve, the inner wall of the sliding sleeve is connected to the connecting ring, and the connecting ring is slidably installed on the inner wall of the rotating shaft.

[0012] Preferably, a limiting plate is symmetrically installed on one side of the outside of the collection frame, and a C-shaped alloy rod is vertically installed at one end of the limiting plate. The upper and lower horizontal sections of the C-shaped alloy rod respectively extend out of the limiting plate and are fixedly connected to the inner wall of the collection frame. When the limiting plate rotates around the C-shaped alloy rod, the C-shaped alloy rod deforms and generates a torsional force.

[0013] Preferably, the main body of the connecting ring is annular and is limitedly slidably mounted on the inner wall of the rotating shaft. A plurality of protrusions are provided on the outer side of the annular main body and are respectively limitedly slidably mounted in the second limiting groove provided on the outer wall of the rotating shaft. The annular main body moves horizontally through the second limiting groove, and the protrusions on the outer side of the annular main body extend outward into the second limiting groove and are connected to the inner wall of the sliding sleeve. The interior of the connecting ring is limit-connected to the limit rod via the limit groove three, and both ends of the limit groove three are connected.

[0014] Preferably, a rotating piece is installed at one end of the movable rod, one side of the rotating piece is in press contact with the spring, and the other end of the spring is installed on the inner wall of the rotating shaft; One end of the movable rod passes through the circulation cabin and the recovery cabin in sequence and extends into the control cabin, and a magnetic disk is installed on the end of the movable rod extending into the control cabin; A spiral blade is installed in the middle of the movable rod, and a slag discharge port is opened just below the end of the spiral blade. The slag discharge port is arranged on the bottom wall of the extended end of the rotating shaft extending out of the recovery cabin.

[0015] The beneficial effects of the present invention are: In the present invention, the melting furnace and the refining furnace are connected by a transfer box, the traditional transfer bag transfer process is abandoned, the molten liquid is ensured to be at the optimal working temperature, and a pipeline circulation treatment system is provided in the refining furnace. The oxidation of impurities is promoted by local oxygen blowing, and the reaction efficiency is improved by cooperating with mechanical stirring. The stirring process can simultaneously collect impurities to avoid impurity accumulation, and the clutch control switching of the spiral conveying mechanism is realized by cooperating with the electromagnetic component through the control cabin, so as to realize the efficient separation and discharge of oxidized impurities. The whole circulation process not only effectively promotes the production of oxidized impurities, but also realizes the function of rapid impurity recovery, effectively ensuring the refining efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the external structure of a remelting and recovery device for scrap copper production proposed by the present invention; Figure 2 A cross-sectional view of the internal structure of the melting furnace proposed in the present invention; Figure 3 This is a cross-sectional view of the internal structure of the melting furnace and refining furnace proposed in the present invention; Figure 4 This is a cross-sectional view of the internal structure of the transfer box proposed by the present invention; Figure 5This is a schematic diagram of the assembly structure of the filter element proposed in the present invention; Figure 6 This is a schematic diagram of the recovery cabin installation structure proposed by the present invention; Figure 7 This is a schematic diagram of the internal structure of the recovery cabin proposed by the present invention; Figure 8 This is a schematic diagram of the internal structure of the circulation cabin proposed by the present invention; Figure 9 This is a cross-sectional view of the internal structure of the rotating shaft proposed by the present invention; Figure 10 This is a schematic diagram of the installation structure of the stirring plate proposed in the present invention; Figure 11 Cross-sectional view of the sleeve installation structure proposed by the present invention Figure 1 ; Figure 12 This is a schematic diagram of the grid installation structure proposed by the present invention; Figure 13 Cross-sectional view of the sleeve installation structure proposed by the present invention Figure 2 ; Figure 14 This is a schematic diagram of the structure of point A proposed by the present invention; Figure 15 This is a schematic diagram of the internal structure of the control cabin proposed by the present invention; Figure 16 This is a schematic diagram of the internal structure of the collection frame proposed by the present invention.

[0017] In the figure: 1. melting furnace; 101. cover; 111. electrode member; 112. discharge port; 2. adapter box; 21. filter member 1; 22. circulation channel; 3. motor member for lifting rope; 31. opening and closing valve plate; 32. limit groove 1; 33. lifting rope; 34. guide wheel; 4. refining furnace; 5. cylinder member; 51. support plate; 52. mounting boss; 6. recovery chamber; 61. circulation chamber; 611. partition; 7. liquid inlet pipe; 71. liquid discharge pipe; 72. electromagnetic pump; 8. heat dissipation fin; 9. air supply pipe 1; 10. impeller member; 11. rotating shaft; 12. control chamber; 121. servo motor; 1211. driving bevel gear; 1 22. Hollow shaft; 123. Driven bevel gear; 124. Electromagnet assembly; 13. Slag discharge port; 14. Agitator plate; 141. Collecting frame; 142. Limit plate; 1421. C-type alloy rod; 143. Filter element 2; 144. Connecting groove; 15. Grille; 16. Mechanical seal; 17. Movable rod; 171. Spiral blade; 172. Rotating plate; 173. Spring; 174. Ceramic insulation sleeve; 175. Limit rod; 1751. Limit groove 3; 176. Magnetic disk; 18. Sleeve; 181. Dynamic seal; 182. Extension block; 183. Connecting ring; 19. Limit groove 2; 20. Air supply pipe 2. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-5 A remelting and recovery device for scrap copper production includes a melting furnace 1, a refining furnace 4 is arranged on one side of the melting furnace 1, the refining furnace 4 and the melting furnace 1 are connected through a transfer box 2 to form a molten liquid transmission channel, and a flow channel 22 is opened at the bottom of the transfer box 2 to connect the refining furnace 4 and the internal chamber of the melting furnace 1.

[0020] A cover 101 is disposed on the upper portion of the melting furnace 1 . A plurality of through holes are provided on the upper portion of the cover 101 for passing the electrode member 111 . The electrode member 111 is lifted and lowered by external hoisting.

[0021] A discharge port 112 is provided on one side of the upper portion of the melting furnace 1 , and the discharge port 112 is used to dump the scrap copper into the melting furnace 1 .

[0022] Furthermore, an opening and closing valve plate 31 is installed on the side of the melting furnace 1 facing the circulation channel 22. The opening and closing valve plate 31 blocks the circulation channel 22 in a natural state to block the circulation of the molten liquid.

[0023] The opening and closing valve plate 31 realizes single vertical movement through a limit groove 32 opened on the inner wall of the melting furnace 1. The middle part of the top of the opening and closing valve plate 31 is connected to the lifting rope 33 through a connecting piece. The lifting rope 33 is wound by the lifting rope motor 3 to realize lifting and lowering.

[0024] Specifically, the motor component 3 for lifting rope is installed on the upper side of the adapter box 2, and a winding wheel is installed at the output end of the motor component 3 for lifting rope, and a guide wheel 34 is installed on the side away from the motor component 3 for lifting rope. The lifting rope 33 is wound around the winding wheel and the guide wheel 34, and the connecting end of the lifting rope 33 is connected to the opening and closing valve plate 31, and the other end is wound and connected to the winding wheel.

[0025] The lifting rope motor 3 is operated to drive the lifting rope 33 to be wound, so that the lifting rope 33 drives the opening and closing valve plate 31 to move vertically, thereby realizing the opening and closing of the flow channel 22.

[0026] Furthermore, the bottom of the circulation channel 22 is penetrated, and the interior of the circulation channel 22 is equipped with a mounting boss 52, the upper part of the mounting boss 52 is installed with a filter element 21, and the bottom is connected to the support plate 51, and the support plate 51 realizes vertical movement through the cylinder element 5.

[0027] Specifically, a cylinder member 5 is installed on one side of the outside of the adapter box 2 . The telescopic end of the cylinder member 5 is connected to a support plate 51 . A mounting boss 52 is installed in the middle of the support plate 51 .

[0028] The filter element 1 21 is specifically a mesh frame filter, and the side of the filter element 1 21 facing the melting furnace 1 is not provided with a filter structure.

[0029] The mounting boss 52 is tilted downward toward the refining furnace 4 , thereby effectively guiding the molten liquid in the melting furnace 1 to flow into the refining furnace 4 .

[0030] When the cylinder 5 contracts to drive the mounting boss 52 to move upward to the top, the mounting boss 52 is engaged with the flow channel 22 , and both sides of the upper end of the mounting boss 52 are connected to the communication ports of the melting furnace 1 and the refining furnace 4 respectively.

[0031] Furthermore, a liquid inlet pipe 7 is installed on one side of the interior of the refining furnace 4, and a liquid discharge pipe 71 is installed diagonally below the side away from the liquid inlet pipe 7. The liquid inlet pipe 7 and the liquid discharge pipe 71 are installed in a diagonal position relationship; The height position of the liquid inlet pipe 7 is immersed in the upper surface of the molten liquid by 5-8 cm.

[0032] The interior of the furnace body of the refining furnace 4 is equipped with an electric heating component to achieve basic heating operation.

[0033] Reference Figure 6-8 A recovery cabin 6 is installed on one side of the exterior of the refining furnace 4 , and a plurality of heat dissipation fins 8 are installed on the exterior of the recovery cabin 6 .

[0034] A circulation chamber 61 is installed inside the recovery chamber 6. One side of the upper part of the circulation chamber 61 is connected to the liquid inlet pipe 7, and the other side of the lower part is connected to the liquid discharge pipe 71. The liquid inlet pipe 7 and the liquid discharge pipe 71 are each separately configured with an electromagnetic pump 72, and the outside of the electromagnetic pump 72 is configured with an insulation component.

[0035] The liquid inlet pipe 7 extends into a part of the interior of the recovery cabin 6, and its upper part is connected to an air supply pipe 9, which is connected to an external air source mechanism.

[0036] Furthermore, a rotating shaft 11 is rotatably mounted at the inner center of the recovery chamber 6 through a bearing, and an impeller 10 is mounted on the side of the rotating shaft 11 facing the liquid inlet pipe 7 , with the impeller 10 directly above the liquid inlet pipe 7 .

[0037] The other end of the rotating shaft 11 extends outward and passes through the recovery chamber 6 and is rotatably connected to the control chamber 12 via a bearing. A mechanical seal 16 is provided at the rotational connection between the rotating shaft 11 and the inner wall partition 611 of the circulation chamber 61. The partition 611 is used to separate the inner chamber of the circulation chamber 61 .

[0038] One end of the control cabin 12 is rotatably connected to the rotating shaft 11 through a bearing, and the control cabin 12 is fixedly installed through a fixed mounting frame. When the rotating shaft 11 rotates, the control cabin 12 remains stationary.

[0039] Furthermore, a pair of stirring discs 14 are fixedly installed on the upper part of the rotating shaft 11, and a grille 15 is installed on the side away from each stirring disc 14 through a sliding sleeve 18. A gap is provided between the grille 15 and the stirring disc 14, and an air supply pipe 20 is installed on the inner wall of the rotating shaft 11 located in the gap area, and the air supply pipe 20 is connected to the external air source mechanism.

[0040] Reference Figure 9-12 、 Figure 15 On one side of each stirring disk 14, a plurality of collecting frames 141 are installed in a circular array. The collecting frame 141 is provided with a slot on the side facing the rotation direction of the rotating shaft 11. Limiting plates 142 are symmetrically installed on both sides of one end of the slot. One end of the two limiting plates 142 is rotatably connected to the collecting frame 141, and the other end extends into the interior of the collecting frame 141 to form an eight-shaped structure.

[0041] Specifically, a C-shaped alloy rod 1421 is vertically installed at the rotating end of the limiting plate 142. The vertical section of the C-shaped alloy rod 1421 is fixedly connected to the middle part of the limiting plate 142, and the horizontal sections at both ends respectively pass through the limiting plate 142 and are fixedly connected to the inner wall of the collection frame 141. When the limiting plate 142 rotates, the horizontal section is deformed by the rotational force and generates a torsional force opposite to the rotation direction.

[0042] Furthermore, a second filter element 143 is installed on one side of the interior of the collection frame 141; The bottom of each collecting frame 141 is through-connected to the interior of the rotating shaft 11 . A connecting groove 144 is provided on the bottom of the collecting frame 141 facing the sliding sleeve 18 . The connecting groove 144 is used to connect with an extension block 182 provided on one side of the sliding sleeve 18 .

[0043] Furthermore, the upper limit of the rotating shaft 11 is provided with a plurality of limit grooves 19, and a connecting ring 183 is installed in the limit groove 19 for limit sliding. The main part of the connecting ring 183 is annular and is installed in the inner wall of the rotating shaft 11 for limit sliding. The outer side of the annular main body is provided with a plurality of protrusions and are respectively installed in the limit groove 19 for limit sliding. The annular main body moves horizontally through the limit groove 19, and the protrusions on the outer side of the annular main body extend outward into the limit groove 19 and are connected to the inner wall of the sliding sleeve 18. The sliding sleeve 18 realizes horizontal displacement through the connecting ring 183.

[0044] A dynamic seal 181 is installed on the inner wall of the sliding sleeve 18 .

[0045] A grid mesh 15 is installed on the outer side of the sliding sleeve 18 , and a gap is left between the grid mesh 15 and the collecting frame 141 .

[0046] Furthermore, a plurality of extension blocks 182 are provided on the side of the sliding sleeve 18 facing the collection frame 141 . The extension blocks 182 fit into the connection grooves 144 opened at the bottom of the collection frame 141 in a natural state, and block the through opening at the bottom of the collection frame 141 .

[0047] Furthermore, a movable rod 17 is mounted at the center of the rotating shaft 11 , and a spiral blade 171 is mounted in the middle of the movable rod 17 . A gap is left between the spiral blade 171 and the inner wall of the rotating shaft 11 .

[0048] One end of the movable rod 17 extends toward one side of the control cabin 12 , penetrates into the interior of the control cabin 12 and is installed with a magnetic disk 176 .

[0049] A hollow shaft 122 is rotatably mounted in the center of the control cabin 12 via a bearing seat. A driven bevel gear 123 is fixedly mounted in the middle of the hollow shaft 122. A driving bevel gear 1211 is meshed with one side of the driven bevel gear 123. The driving bevel gear 1211 is rotated by a servo motor 121. An electromagnet assembly 124 is provided at one end of the hollow shaft 122 facing the magnetic disk 176 . In a natural state, a distance is left between the electromagnet assembly 124 and the magnetic disk 176 .

[0050] Furthermore, a slag discharge port 13 is provided on the inner wall of the rotating shaft 11 obliquely below the end of the spiral blade 171 . The slag discharge port 13 is arranged outside the recovery chamber 6 and is directly connected to the outside world.

[0051] Reference Figure 13-14 , a plurality of limiting rods 175 are installed in the middle of the movable rod 17, and a limiting groove 3 1751 is provided in the middle of the upper end of each limiting rod 175, and both ends of the limiting groove 3 1751 are connected. A connecting ring 183 is installed in the middle of the limiting groove 3 1751, and the limiting rod 175 is connected to the connecting ring 183 through the limiting groove 3 1751. When the movable rod 17 moves horizontally, the limiting rod 175 drives the connecting ring 183 to move horizontally through the notch of the limiting groove 3 1751; When the movable rod 17 rotates around its own central axis, the limiting rod 175 rotates and slides on the outer wall of the connecting ring 183, and the connecting ring 183 remains stationary; Furthermore, a rotating piece 172 is mounted on one end of the movable rod 17. The rotating piece 172 is freely rotatable via a bearing. One end of the rotating piece 172 is in press contact with a spring 173. The other end of the spring 173 is fixedly mounted on one side of the inner wall of the rotating shaft 11. The spring 173 is always pressed against the outer wall of the rotating piece 172 by elastic force. A ceramic heat-insulating sleeve 174 is installed on one side of the inner wall of the rotating shaft 11 , and a spring 173 is installed inside the ceramic heat-insulating sleeve 174 .

[0052] When the movable rod 17 moves horizontally, the spring 173 deforms adaptively and always presses against the outer wall of the rotating piece 172 .

[0053] Reference Figure 9 、 Figure 15 A servo motor 121 is installed on the upper part of the control cabin 12. The output end of the servo motor 121 extends into the interior of the control cabin 12 and is installed with a driving bevel gear 1211. The bottom side of the driving bevel gear 1211 is connected to a driven bevel gear 123 through tooth groove engagement. The driven bevel gear 123 is fixedly installed with the hollow shaft 122 to achieve synchronous rotation. A wire is passed through the middle of the hollow shaft 122. One end of the wire is electrically connected to the electromagnet assembly 124, and the other end passes through the control cabin 12 and is connected to the external electromagnet control mechanism. In this embodiment, the scrap copper is poured into the melting furnace 1 through the discharge port 112, and the cover 101 is covered on the melting furnace 1 by an external lifting device to complete the basic sealing guarantee, and then the electrode part 111 is lifted to the center position of the melting furnace 1 by the lifting equipment for melting operation.

[0054] The scrap copper liquid after arc melting is then stored in the melting furnace 1. The operator then controls the operation of the lifting rope motor 3 using an external control device, and drives the opening and closing valve plate 31 in the melting furnace 1 to rise through the lifting rope 33 to open the circulation channel 22, and the molten liquid enters the refining furnace 4 through the circulation channel 22.

[0055] During this process, the molten liquid will pass through the filter element 21 provided at the internal flow channel 22 of the transfer box 2, and filter out the large volume impurities generated during the smelting.

[0056] After the molten liquid has completely entered the refining furnace 4, the opening and closing valve plate 31 descends to close the circulation channel 22. The refining furnace 4 refines the molten liquid through the built-in electric heating component. At the same time, during this process, the liquid level of the molten liquid gradually submerges the liquid inlet pipe 7. The electromagnetic pump 72 operates to drive the molten liquid at the pump body to flow into the recovery chamber 6. The molten liquid enters the circulation chamber 61 in the recovery chamber 6 through the liquid inlet pipe 7. Synchronously, the external gas source mechanism pumps the oxygen-rich gas into the gas supply pipe 9, and the oxygen-rich gas falls downward together with the molten liquid. During this process, the molten liquid and the oxygen-rich gas undergo a preliminary reaction and fusion, and the downward kinetic energy generated by the gas-liquid mixture drives the impeller 10 configured in the circulation chamber 61 to rotate. The impeller 10 rotates synchronously with the rotating shaft 11, and the components such as the stirring disk 14 and the grid mesh 15 arranged on the rotating shaft 11 rotate synchronously. This is easy to understand intuitively and will not be explained again.

[0057] As the molten liquid enters the circulation chamber 61, the stirring disk 14 rotates to achieve stirring and mixing, and the gas supply pipe 20 pumps oxygen-rich gas into the gap between the stirring disk 14 and the grid 15 for sufficient mixing and reaction. At the same time, the molten liquid flows to the discharge pipe 71 and is pumped back to the refining furnace 4 by the electromagnetic pump 72 installed at the discharge pipe 71 to complete the circulation; The molten liquid enters the circulation chamber 61 through the liquid inlet pipe 7 to complete the oxygen blowing treatment and then is discharged into the refining furnace 4 through the liquid discharge pipe 71.

[0058] The gap between the grid 15 and the stirring disk 14 allows the melt to be fully mixed with the oxygen-rich gas in this area. Compared with directly pumping the oxygen-rich gas into the furnace, this structure allows the melt and the oxygen-rich gas to have a brief and more complete contact in a single area, thereby promoting the oxidation of impurities therein.

[0059] At the same time, a plurality of collecting frames 141 provided on the stirring plate 14 will collect the oxidized impurities and store them in the frames.

[0060] When the corresponding process time is reached, the discharge port on one side of the refining furnace 4 is opened, the oxygen-rich gas is no longer charged, and the processed molten liquid is discharged from the refining furnace 4.

[0061] After the molten liquid is discharged, the device performs the slag discharge process. The inert gas is pumped into the gas supply pipe 9 by the external gas source component, and the impeller 10 is driven by the air flow alone to rotate. Synchronously, the electromagnet assembly 124 is energized through an external control device to generate electromagnetic attraction, and the magnetic disk 176 on one side is adsorbed by the electromagnetic attraction. The magnetic disk 176 is horizontally displaced toward the side of the electromagnet assembly 124 under the magnetic attraction until the magnetic disk 176 and the electromagnet assembly 124 are firmly adsorbed. At this time, the movable rod 17 connected to the magnetic disk 176 is displaced as a whole, and the movable rod 17 is connected to the hollow shaft 122 to realize power transmission.

[0062] Then, the servo motor 121 in the control cabin 12 runs, and the driving bevel gear 1211 set at the output end of the servo motor 121 engages to drive the driven bevel gear 123 to rotate, and the hollow shaft 122 rotates synchronously with the driven bevel gear 123 to realize the rotation of the hollow shaft 122 and the hollow shaft 122.

[0063] When the movable rod 17 is displaced horizontally, the multiple limit rods 175 installed on the rod body of the movable rod 17 are limited by the slot limit setting of the limit slot three 1751 thereof, driving the connecting ring 183 which is limitedly engaged with it to move horizontally. The connecting ring 183 drives the sliding sleeve 18 connected to it to move horizontally as a whole. The multiple extension blocks 182 set on one side of the sliding sleeve 18 are then disengaged from the connecting slot 144 opened at the bottom of the collecting frame 141, so that the through-opening at the bottom of the collecting frame 141 is connected to the interior of the rotating shaft 11.

[0064] Furthermore, as the rotating shaft 11 rotates, each time the collecting frame 141 rotates to a vertically upward position, the oxidized impurities in the collecting frame 141 fall into the collecting frame 141 due to their own weight. As the collecting frame 141 continues to rotate, the impurities will be fully dropped and discharged.

[0065] When the movable rod 17 is driven by the motor to rotate, the spiral blade 171 rotates to drive the oxidized impurities that fall into the rotating shaft 11 to move. The oxidized impurities are moved to the slag discharge port 13 by the spiral conveying action of the spiral blade 171 and fall.

[0066] In actual application, when the collection frame 141 rotates in the melt, the melt enters the collection frame 141 and passes through the second filter element 143 on the other side. At this time, the oxidized impurities in the melt are isolated by the filter and remain in the collection frame 141. Since the collection frame 141 is provided with a limiting plate 142 in an eight-shaped configuration, when impurities enter the collection frame 141, the oxidized impurities will enter from the large opening of the eight-shaped limiting plate 142, and the limiting plate 142 will adaptively expand according to the size of the oxidized impurities to allow the impurities to pass through. When impurities enter the collection frame 141, the small opening setting of the eight-shaped limiting plate 142 will prevent the impurities from escaping.

[0067] In actual application, during the process of cleaning impurities in the filter element 21, the operator controls the cylinder element 5 to extend through the external control device, and drives the support plate 51 downward to realize the separation of the filter element 21 from the flow channel 22.

[0068] Among them, it is worth noting that when performing maintenance steps, the equipment should be in a shutdown and idle state, there is no molten liquid in the furnace and the equipment temperature is within the safe operating range.

[0069] Among them, it is worth noting that the bearing parts used in the circulation chamber 61 are all high-temperature resistant ceramic bearings, which are directly purchased and used from the market. Those skilled in the art are aware of this and have the ability to install them independently, so no further explanation is needed.

[0070] In addition, the electric motor 3 for the lifting rope can be a brake motor. Those skilled in the art can purchase and use a motor of corresponding specifications as a driving component according to actual usage, and no further explanation is given.

[0071] In addition, the mechanical seal 16 is a high temperature resistant mechanical seal, and the mechanical seal 16 is connected to the external cooling circulation component through a water pipe; In addition, splines are provided at both ends of the movable rod 17. Correspondingly, a keyway is provided on the bearing seat corresponding to the movable rod 17 to snap-fit and assemble the movable rod 17. The keyway connection enables the movable rod 17 to move horizontally a certain reasonable distance.

[0072] Among them, it is worth noting that the wire is connected to the control cabin 12 through a conductive slip ring. When the wire rotates, the conductive slip ring avoids entanglement. The conductive slip ring can be directly purchased and used on the market. The specific installation method is the existing technology. Those skilled in the art have the ability to assemble it independently and will not be explained.

[0073] The transfer box 2 connects the melting furnace 1 with the refining furnace 4, so that the melt does not need to be transferred twice, ensuring the process flow of the melt and ensuring that the melt is at the optimal working temperature; At the same time, the refining furnace 4 realizes a pipeline circulation system through the liquid inlet pipe 7, the liquid discharge pipe 71, and the circulation chamber 61. During the circulation process of the melt, oxygen can be locally blown into the melt in the circulation chamber 61 to promote the oxidation of impurities, and the melt can be moderately stirred by the stirring disk. Impurities can be collected synchronously during the stirring process to avoid impurity accumulation. At the same time, after the oxygen blowing process is completed, the clutch control switching of the spiral conveying mechanism is realized through the control cabin and the electromagnetic component, so as to achieve efficient separation and discharge of oxidized impurities. The entire cycle process not only effectively promotes the production of oxidized impurities, but also realizes the rapid recovery function of impurities, effectively ensuring the refining efficiency.

[0074] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A remelting and recovery device for scrap copper production, comprising a melting furnace (1) and a refining furnace (4), characterized in that: The melting furnace (1) and the refining furnace (4) are connected via a transfer box (2). An opening and closing valve plate (31) is provided on one side of the interior of the melting furnace (1). The opening and closing valve plate (31) is raised and lowered by a lifting rope mechanism. The opening and closing valve plate (31) controls the flow state of the molten liquid inside the transfer box (2). A circulation chamber (61) is installed on one side of the refining furnace (4) through a recovery chamber (6), and both sides of the circulation chamber (61) are connected to the interior of the refining furnace (4) through a liquid inlet pipe (7) and a liquid discharge pipe (71). A rotating shaft (11) is provided in the middle of the circulation chamber (61), and an impeller (10) is provided at one end of the rotating shaft (11) facing the lower side of the liquid inlet pipe (7). A plurality of stirring discs (14) are installed in the middle of the rotating shaft (11), and a grid (15) is installed on the side away from each stirring disc (14) through a sliding sleeve (18); A plurality of collecting frames (141) are installed on one side of the stirring disk (14), the bottom of the collecting frame (141) is connected to the inside of the rotating shaft (11), and a pair of limiting plates (142) are installed on the outside of the collecting frame (141), and the limiting plates (142) extend inward and are close together in an eight-shaped shape; A movable rod (17) is provided in the middle of the rotating shaft (11), a spiral blade (171) is installed in the middle of the movable rod (17), and a plurality of limit rods (175) are installed in the middle of the movable rod (17). The top end of the limit rod (175) is limitedly engaged with the connecting ring (183) through the limit groove 3 (1751). The outer side of the connecting ring (183) is provided with a plurality of protrusions, each of which extends out of the limit groove 2 (19) provided on the outer wall of the rotating shaft (11) and is connected to the inner wall of the sliding sleeve (18). The sliding sleeve (18) realizes horizontal displacement through the limit groove 2 (19). A plurality of extension blocks (182) are provided on one side of the sliding sleeve (18), and each extension block (182) extends into the interior of the collecting frame (141); One side of the rotating shaft (11) extends out of the recovery cabin (6) and is rotatably connected to the control cabin (12). A motor assembly is provided in the control cabin (12) to drive the movable rod (17) to move.

2. The remelting and recovery device for scrap copper production according to claim 1, characterized in that: The lifting rope mechanism includes a lifting rope motor component (3), the lifting rope motor component (3) is installed on the upper part of the transfer box (2), the output end of the lifting rope motor component (3) is installed with a reel, a side away from the reel is installed with a guide wheel (34), a lifting rope (33) is wound around the reel and the guide wheel (34), and one end of the lifting rope (33) is connected to the top of the opening and closing valve plate (31) through a connecting piece; The opening and closing valve plate (31) is installed on one side of the interior of the melting furnace (1) through a limiting groove (32), and the opening and closing valve plate (31) realizes vertical movement through the limiting groove (32).

3. The remelting and recovery device for scrap copper production according to claim 1, characterized in that: The upper portion of the melting furnace (1) is provided with a cover (101), the cover (101) is provided with an electrode member (111), the electrode member (111) contacts the scrap copper to achieve arc melting, and a discharge port (112) is provided on one side of the upper portion of the melting furnace (1).

4. The remelting and recovery device for scrap copper production according to claim 1, characterized in that: A circulation channel (22) is provided at the bottom of the transfer box (2), and the two ends of the circulation channel (22) are respectively connected to the melting furnace (1) and the refining furnace (4). A filter element (21) is installed in the middle of the circulation channel (22) through a mounting boss (52). The filter element (21) is fitted in the circulation channel (22). The bottom of the mounting boss (52) is connected to the telescopic end of the cylinder element (5) through a support plate (51). The cylinder element (5) is assembled on one side of the outside of the transfer box (2). When the cylinder element (5) is telescopic, the filter element (21) moves vertically.

5. The remelting and recovery device for scrap copper production according to claim 1, characterized in that: A circulation chamber (61) is installed inside the recovery chamber (6). One side of the upper portion of the circulation chamber (61) is connected to the liquid inlet pipe (7), and the other side is connected to the liquid discharge pipe (71). The liquid inlet pipe (7) and the liquid discharge pipe (71) are installed in a diagonal position relationship, and the liquid inlet pipe (7) and the liquid discharge pipe (71) are each independently equipped with an electromagnetic pump (72). One side of the upper portion of the liquid inlet pipe (7) is connected to an air supply pipe 1 (9), and a plurality of air supply pipes 2 (20) are provided on a side away from the air supply pipe 1 (9). The air supply pipes 2 (20) are communicated with the interior of the circulation chamber (61), and the air supply pipes 1 (9) and 2 (20) are communicated with an external air source mechanism.

6. The remelting and recovery device for scrap copper production according to claim 1, characterized in that: The control cabin (12) is fixedly mounted on an outer side of the recovery cabin (6) via a mounting frame. One end of the control cabin (12) is rotatably connected to the rotating shaft (11) via a bearing member. A servo motor (121) is provided on the upper portion of the control cabin (12). The output end of the servo motor (121) extends into the interior of the control cabin (12) and is provided with a driving bevel gear (1211). A bottom side of the driving bevel gear (1211) is connected to a driven bevel gear (123) via tooth groove engagement. The driven bevel gear (123) is mounted in the middle of a hollow shaft (122). One end of the hollow shaft (122) is connected to an electromagnet assembly (124). A magnetic disk (176) is provided on a side away from the electromagnet assembly (124). The magnetic disk (176) is connected to the movable rod (17).

7. The remelting and recovery device for scrap copper production according to claim 1, characterized in that: A second filter element (143) is installed on one side of the interior of the collection frame (141). The bottom end of the collection frame (141) is passed through and communicated with the interior of the rotating shaft (11). A connecting groove (144) is provided on the side of the bottom of the collection frame (141) facing the sliding sleeve (18). An extension block (182) is installed in a limited position in the connecting groove (144). The extension block (182) is connected to the sliding sleeve (18). The inner wall of the sliding sleeve (18) is connected to the connecting ring (183). The connecting ring (183) is installed in a limited sliding manner on the inner wall of the rotating shaft (11).

8. The remelting and recovery device for scrap copper production according to claim 7, characterized in that: A limiting plate (142) is symmetrically mounted on one side of the outside of the collection frame (141), and a C-shaped alloy rod (1421) is vertically mounted on one end of the limiting plate (142). The upper and lower horizontal sections of the C-shaped alloy rod (1421) respectively extend out of the limiting plate (142) and are fixedly connected to the inner wall of the collection frame (141). When the limiting plate (142) rotates around the C-shaped alloy rod (1421), the C-shaped alloy rod (1421) deforms and generates a torsional force.

9. The remelting and recovery device for scrap copper production according to claim 1, characterized in that: The main body of the connecting ring (183) is annular and is limitedly slidably mounted on the inner wall of the rotating shaft (11). A plurality of protrusions are provided on the outer side of the annular main body and are respectively limitedly slidably mounted in the second limiting groove (19) opened on the outer wall of the rotating shaft (11). The annular main body moves horizontally through the second limiting groove (19), and the protrusions on the outer side of the annular main body extend outward into the second limiting groove (19) and are connected to the inner wall of the sliding sleeve (18); The interior of the connecting ring (183) is connected to the limiting rod (175) via the limiting groove three (1751), and both ends of the limiting groove three (1751) are connected.

10. The remelting and recovery device for scrap copper production according to claim 1, characterized in that: A rotating piece (172) is installed at one end of the movable rod (17), one side of the rotating piece (172) is in press contact with a spring (173), and the other end of the spring (173) is installed on the inner wall of the rotating shaft (11); One end of the movable rod (17) passes through the circulation cabin (61) and the recovery cabin (6) in sequence and extends into the control cabin (12); a magnetic disk (176) is installed on the end of the movable rod (17) extending into the control cabin (12); A spiral blade (171) is installed in the middle of the movable rod (17), and a slag discharge port (13) is opened just below the end of the spiral blade (171). The slag discharge port (13) is arranged on the bottom wall of the extended end of the rotating shaft (11) extending out of the recovery cabin (6).

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