Metal cored cathode rod for metal smelting and its preparation process

Abstract

The present invention discloses a metal-clad cathode rod for metal smelting, comprising a base plate, an electrolytic cell disposed at the upper end of the base plate, a cathode rod body and an anode rod disposed within the electrolytic cell, and two symmetrically arranged fixing plates disposed at the upper end of the base plate, both of which are L-shaped. The present invention also provides a process for preparing the metal-clad cathode rod for metal smelting, comprising the following steps: S1, preparing an acid wash solution by mixing H2O, HCl, and HNO3 in a weight ratio of 3-5:4-6:1; S2, acid washing and rust removal, completely immersing the processed cathode steel rod in the acid wash solution for 8-12 hours, removing the rod from the process, cleaning the surface of the cathode steel rod with clean water, and then drying the rod in a drying furnace. The present invention separates the clamping slot from the clamping block, thereby separating the mounting block from the mounting slot, thereby enabling quick disassembly of the cathode rod body and the anode rod, thereby facilitating later replacement of the cathode rod body and the anode rod.

Description

Technical Field

[0001] The present invention relates to the technical field of metal smelting, in particular to a metal core cathode rod for metal smelting and a preparation process thereof. Background Art

[0002] Smelting is a refining technology that refers to the use of roasting, smelting, electrolysis and chemical agents to extract metals from ores, reduce impurities in the metal or increase certain components in the metal, and refine the required metal. The smelting process is actually the process of changing non-ferrous metals from a combined state to a free state. In industrial production, carbon, carbon monoxide, hydrogen, etc. are often used as reducing agents to react with metal oxides at high temperatures to obtain the corresponding metal elements.

[0003] In the process of metal smelting, it is generally necessary to electrolyze the metal to purify the metal. However, in the existing technology, the cathode rod for metal electrolysis is generally suspended on the upper end of the electrolytic cell through a connecting ring. However, since the connecting ring is generally fixed on a fixed plate, when the connecting ring is damaged, it is impossible to replace the connecting ring, which brings certain difficulties to people's later installation and disassembly of the cathode rod. In addition, during use, the upper end of the cathode rod is generally exposed to the outside. Since the exposed part of the cathode rod is in contact with the air for a long time, the exposed part of the cathode rod will undergo an oxidation reaction, thereby reducing the service life of the cathode rod. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, and the metal-clad cathode rod for metal smelting and the preparation process thereof are proposed. Under the elastic action of the first spring between the two slides, the two slides push the two clamping blocks to move out of the through-groove and extend into the two clamping grooves, thereby limiting the mounting block and realizing the rapid connection between the mounting block, the anode rod and the cathode rod body. Then, the push plate pushes the clamping block to retract into the through-groove again, thereby separating the clamping groove from the clamping block, and thus separating the mounting block from the mounting groove, thereby achieving rapid disassembly of the cathode rod body and the anode rod, bringing convenience to people's later replacement of the cathode rod body and the anode rod, and the metal-clad cathode rod for metal smelting and the preparation process thereof are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The process for preparing a metal core cathode rod for metal smelting comprises the following steps:

[0007] S1. Prepare an acid wash solution by mixing H2O, HCl and HNO3 in a weight ratio of 3-5:4-6:1;

[0008] S2, pickling and rust removal, immersing the processed cathode steel rod completely in the pickling solution, taking it out after soaking for 8 to 12 hours, cleaning the surface of the cathode steel rod with clean water, and then placing the cathode steel rod in a drying furnace for drying;

[0009] S3. Coating a metal composite layer, heating and melting metal aluminum, metal copper, or a mixture of metal aluminum-copper, aluminum-silver, or copper-silver in a furnace to obtain molten liquid metal, immersing the cathode steel rod in the liquid metal, maintaining the temperature fluctuation range of the molten metal between 5° C. and 50° C., reacting for 5 to 45 minutes, taking it out and placing it in a high-temperature furnace at a temperature of 800° C. to 1250° C.;

[0010] S4, grinding, grinding and polishing the surface of the cathode steel rod covered with the metal composite layer to be smooth, thus obtaining a finished product of the electrolytic aluminum cathode conductive rod.

[0011] The present invention also proposes a metal-core cathode rod for metal smelting, comprising a base plate, an electrolytic cell being provided at the upper end of the base plate, a cathode rod body and an anode rod being respectively provided in the electrolytic cell, two symmetrically arranged fixing plates being provided at the upper end of the base plate, both fixing plates being L-shaped, mounting grooves being provided on the opposite side walls of the two fixing plates, clamping grooves being provided on the side walls on both sides of the mounting grooves, connecting blocks being provided above the cathode rod body and the anode rod, connecting mechanisms being provided at the lower ends of the two connecting blocks for connecting the anode rod and the cathode rod body, limiting mechanisms being provided on the side walls on both sides of the two connecting blocks for limiting the connecting blocks, and releasing mechanisms being provided between the two clamping grooves and the side walls of the fixing plates for releasing the limiting mechanisms.

[0012] Preferably, the connection mechanism includes a connection hook provided at the lower end of the connection block, the upper ends of the anode rod and cathode rod bodies are fixedly connected to mounting blocks, and the upper ends of the two mounting blocks are provided with connection rings that cooperate with the connection hook.

[0013] Preferably, the limiting mechanism includes a through groove opened between the side walls on both sides of the connecting block, and two symmetrically arranged slides are slidably connected in the through groove. The opposite side walls of the two slides are provided with a card block that cooperates with the card groove, and the two slides are elastically connected by a first spring.

[0014] Preferably, the release mechanism includes a threaded ring extending between the slot and the side wall of the fixed plate, a threaded rod threadedly connected to the threaded ring extending through the threaded ring, and a push plate provided at one end of the threaded rod located in the slot.

[0015] Preferably, a chamber is provided in the mounting block, a through groove is provided between the chamber and the lower end of the mounting block, the through groove is annular, a protective plate is provided between the chamber and the through groove, two symmetrically arranged triangular blocks are provided on the upper end of the protective plate, a limiting ring is provided in the through groove, the protective plate passes through the limiting ring and is slidably connected to the limiting ring, and the two triangular blocks and the limiting ring are elastically connected by two symmetrically arranged second springs.

[0016] Preferably, a double-headed screw is rotatably connected between the chamber and the outer walls on both sides of the mounting block, a turntable is provided at one end of the double-headed screw, the threads at both ends of the double-headed screw rotate in opposite directions, and moving blocks that cooperate with the outer walls are provided on the outer walls of both ends of the double-headed screw, and fixed blocks are provided at the lower ends of the two moving blocks, and push blocks are provided at the lower ends of the two fixed blocks.

[0017] Preferably, a limiting groove is provided at the upper end of the chamber, a limiting rod is provided in the limiting groove, and the limiting rod passes through the two moving blocks and is slidably connected thereto.

[0018] Preferably, a first inclined surface is formed on the side walls of the two clamping blocks, and a plurality of the first inclined surfaces are respectively slidably connected to the opposite side walls of the two fixing plates.

[0019] Preferably, a second inclined surface is provided on the opposite side walls of the two pushing blocks, and the inclined surface of the triangular block is slidably connected to the second inclined surface.

[0020] Beneficial effects of the present invention:

[0021] 1. Under the elastic action of the first spring between the two slides, the two slides push the two clamping blocks out of the through slots and extend into the two clamping slots, thereby limiting the mounting block and realizing the quick connection between the mounting block, the anode rod and the cathode rod body. Then, the push plate pushes the clamping block back into the through slot again, thereby separating the clamping slot from the clamping block, and thus separating the mounting block from the mounting slot, thereby achieving quick disassembly of the cathode rod body and the anode rod, which brings convenience to people's later replacement of the cathode rod body and the anode rod.

[0022] 2. By pushing the protective plate downward with two triangular blocks, the protective plate is moved out of the through slot to protect the outer wall of the cathode rod body outside the electrolyte, thereby preventing the cathode rod body from being in contact with air for a long time and causing oxidation reaction, which will shorten the service life of the cathode rod body.

[0023] 3. By driving the double-headed screw to rotate with the turntable, the threads at both ends of the double-headed screw rotate in opposite directions, and the two moving blocks are connected to the threads at both ends of the double-headed screw, and the limiting action of the limiting rod in the limiting groove on the two moving blocks, the two moving blocks are allowed to separate at both ends of the double-headed screw, thereby pushing the two ends of the protective plate, causing the protective plate to move down stably, and improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a left side schematic diagram of the overall structure of the metal core cathode rod for metal smelting of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the metal core cathode rod process for metal smelting according to the present invention;

[0026] Figure 3 This is a bottom view schematic diagram of the structure of the metal core cathode rod connecting block for metal smelting of the present invention;

[0027] Figure 4 This is a schematic cross-sectional view of a portion of the structure of a metal-coated cathode rod for metal smelting according to the present invention;

[0028] Figure 5 The metal core cathode rod for metal smelting of the present invention Figure 1 A schematic diagram of the structure enlargement at point A;

[0029] Figure 6 This is a schematic cross-sectional view of the internal structure of the metal-coated cathode rod connecting block for metal smelting according to the present invention.

[0030] In the figure: 1 bottom plate, 2 electrolytic cell, 3 fixed plate, 4 mounting groove, 5 clamping groove, 6 threaded ring, 7 threaded rod, 8 mounting block, 9 cathode rod body, 10 connecting hook, 11 connecting ring, 12 through groove, 13 protective plate, 14 stud screw, 15 turntable, 16 push plate, 17 connecting block, 18 through groove, 19 first spring, 20 slide plate, 21 clamping block, 22 first inclined surface, 23 chamber, 24 limiting groove, 25 limiting rod, 26 moving block, 27 fixed block, 28 push block, 29 triangular block, 30 limiting ring, 31 second spring, 32 second inclined surface. DETAILED DESCRIPTION

[0031] 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.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0033] Reference Figure 1-6, a metal-coated cathode rod for metal smelting, comprising a base plate 1, an electrolytic cell 2 is provided at the upper end of the base plate 1, a cathode rod body 9 and an anode rod are respectively provided in the electrolytic cell 2, two symmetrically arranged fixing plates 3 are provided at the upper end of the base plate 1, the two fixing plates 3 are both L-shaped, mounting grooves 4 are provided on the opposite side walls of the two fixing plates 3, and card grooves 5 are provided on the side walls on both sides of the mounting groove 4, connecting blocks 17 are provided above the cathode rod body 9 and the anode rod, and the lower ends of the two connecting blocks 17 are provided with a connecting mechanism for connecting the anode rod and the cathode rod body 9, the connecting mechanism includes a connecting hook 10 provided at the lower end of the connecting block 17, the upper ends of the anode rod and the cathode rod body 9 are fixedly connected with a mounting block 8, and the upper ends of the two mounting blocks 8 are provided with a connecting ring 11 that cooperates with the connecting hook 10.

[0034] The two side walls of the two connecting blocks 17 are jointly provided with a limiting mechanism for limiting the position thereof. The limiting mechanism includes a through groove 18 opened between the side walls of the connecting block 17. Two symmetrically arranged slides 20 are slidably connected in the through groove 18. The opposite side walls of the two slides 20 are provided with a card block 21 that cooperates with the card slot 5. The two slides 20 are elastically connected by a first spring 19. The side walls of the two card blocks 21 are provided with a first inclined surface 22. The multiple first inclined surfaces 22 are respectively slidably connected to the opposite side walls of the two fixed plates 3. Through the two slides 20 Under the elastic action of the first spring 19, the two slides 20 push the two clamping blocks 21 out of the through groove 18 and extend into the two clamping grooves 5, thereby limiting the mounting block 8 and quickly connecting the mounting block 8 with the anode rod and the cathode rod body 9. Then, the push plate 16 pushes the clamping block 21 back into the through groove 18 again, thereby separating the clamping groove 5 from the clamping block 21, and thus separating the mounting block 8 from the mounting groove 4, so that the cathode rod body 9 and the anode rod can be quickly disassembled, which makes it convenient for people to replace the cathode rod body 9 and the anode rod in the future.

[0035] A releasing mechanism for releasing the limiting mechanism is provided between the two slots 5 and the side walls of the fixed plate 3. The releasing mechanism includes a threaded ring 6 that is arranged between the slot 5 and the side walls of the fixed plate 3. A threaded rod 7 that is threadedly connected to the threaded ring 6 is provided inside the threaded ring 6. A push plate 16 is provided at one end of the threaded rod 7 located in the slot 5.

[0036] A chamber 23 is provided in the mounting block 8, and a through groove 12 is provided between the chamber 23 and the lower end of the mounting block 8. The through groove 12 is annular, and a protective plate 13 is provided between the chamber 23 and the through groove 12. Two symmetrically arranged triangular blocks 29 are provided on the upper end of the protective plate 13, and a limiting ring 30 is provided in the through groove 12. The protective plate 13 passes through the limiting ring 30 and is slidably connected to the limiting ring 30. The two triangular blocks 29 and the limiting ring 30 are elastically connected by two symmetrically arranged second springs 31.

[0037] A double-headed screw 14 is rotatably connected between the chamber 23 and the outer walls on both sides of the mounting block 8. A turntable 15 is provided at one end of the double-headed screw 14. The threads at both ends of the double-headed screw 14 are rotated in opposite directions. A moving block 26 that cooperates with its outer wall is provided on the outer walls of both ends of the double-headed screw 14. A fixed block 27 is provided at the lower end of the two moving blocks 26. A push block 28 is provided at the lower end of the two fixed blocks 27. A second inclined surface 32 is provided on the opposite side walls of the two push blocks 28. The inclined surface of the triangular block 29 is slidably connected to the second inclined surface 32. By pushing the protective plate 13 downward with the two triangular blocks 29, the protective plate 13 is moved out of the through slot 12 to the negative The outer wall of the cathode rod body 9 is located outside the electrolyte for protection to prevent the cathode rod body 9 from being in contact with the air for a long time and causing an oxidation reaction, which will result in a shorter service life of the cathode rod body 9. The turntable 15 drives the double-headed screw 14 to rotate, and the threads at both ends of the double-headed screw 14 rotate in opposite directions and the two moving blocks 26 are threadedly connected to the two ends of the double-headed screw 14. The limiting rod 25 in the limiting groove 24 limits the two moving blocks 26, so that the two moving blocks 26 are separated at both ends of the double-headed screw 14, thereby pushing the two ends of the protective plate 13, causing the protective plate 13 to move down stably, thereby improving the stability of the device.

[0038] A limiting groove 24 is defined at the upper end of the chamber 23 . A limiting rod 25 is disposed in the limiting groove 24 . The limiting rod 25 passes through the two moving blocks 26 and is slidably connected thereto.

[0039] The present invention also provides a process for preparing a metal core cathode rod for metal smelting, comprising the following steps:

[0040] S1. Prepare an acid wash solution by mixing H2O, HCl and HNO3 in a weight ratio of 3-5:4-6:1;

[0041] S2, pickling and rust removal, immersing the processed cathode steel rod completely in the pickling solution, taking it out after soaking for 8 to 12 hours, cleaning the surface of the cathode steel rod with clean water, and then placing the cathode steel rod in a drying furnace for drying;

[0042] S3. Coating a metal composite layer, heating and melting metal aluminum, metal copper, or a mixture of metal aluminum-copper, aluminum-silver, or copper-silver in a furnace to obtain molten liquid metal, immersing the cathode steel rod in the liquid metal, maintaining the temperature fluctuation range of the molten metal between 5° C. and 50° C., reacting for 5 to 45 minutes, taking it out and placing it in a high-temperature furnace at a temperature of 800° C. to 1250° C.;

[0043] S4, grinding, grinding and polishing the surface of the cathode steel rod covered with the metal composite layer to be smooth, thus obtaining a finished product of the electrolytic aluminum cathode conductive rod.

[0044] When the present invention is used, when installing the cathode rod body 9 and the anode rod, it is only necessary to align the mounting blocks 8 at the upper ends of the two with the mounting grooves 4 on the two fixing plates 3. The two clamping blocks 21 at both ends of the mounting block 8 and the two slides 20 between the two clamping blocks 21 are slidably connected to the through-grooves 18, so that the side walls of the fixing plate 3 squeeze the two clamping blocks 21 and retract them into the through-grooves 18, thereby allowing the mounting block 8 to enter the mounting groove 4. When the two clamping blocks 21 move to the same horizontal plane as the clamping groove 5, the two slides 20 push the two clamping blocks 21 out of the through-grooves 18 and extend into the two clamping blocks 21 under the elastic action of the first spring 19 between the two slides 20. The clamping block 21 is retracted into the through slot 18 again, thereby separating the clamping block 21 from the clamping slot 5. As a result, the mounting block 8 is separated from the mounting slot 4, thereby achieving rapid disassembly of the cathode rod body 9 and the anode rod, which brings convenience to people's later replacement of the cathode rod body 9 and the anode rod.

[0045] When it is necessary to protect the part of the cathode rod body 9 above the electrolyte, it is only necessary to rotate the turntable 15 so that the turntable 15 drives the double-headed screw 14 to rotate. Through the opposite rotation directions of the threads at the two ends of the double-headed screw 14 and the threaded connection between the two moving blocks 26 and the two ends of the double-headed screw 14, and then through the limiting action of the limiting rod 25 in the limiting groove 24 on the two moving blocks 26, the two moving blocks 26 are caused to separate at the two ends of the double-headed screw 14. Through the sliding connection between the second inclined surface 32 on the pushing block 28 at the lower end of the two moving blocks 26 and the triangular block 29, the two pushing blocks 28 push the two triangular blocks 29 downward, thereby causing the two triangular blocks 29 to push the protective plate 13 downward, so that the protective plate 13 moves out of the through groove 12 to protect the outer wall of the cathode rod body 9 outside the electrolyte, thereby preventing the cathode rod body 9 from being in contact with air for a long time, causing oxidation reaction, and shortening the service life of the cathode rod body 9.

[0046] 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 metal core cathode rod for metal smelting, comprising a bottom plate (1), characterized in that: An electrolytic cell (2) is provided at the upper end of the bottom plate (1), and a cathode rod body (9) and an anode rod are respectively provided in the electrolytic cell (2). Two symmetrically arranged fixing plates (3) are provided at the upper end of the bottom plate (1), and the two fixing plates (3) are both L-shaped. Mounting grooves (4) are provided on the opposite side walls of the two fixing plates (3), and clamping grooves (5) are provided on the side walls on both sides of the mounting groove (4). Connecting blocks (17) are provided above the cathode rod body (9) and the anode rod, and connecting mechanisms for connecting the anode rod and the cathode rod body (9) are provided at the lower ends of the two connecting blocks (17). A limiting mechanism for limiting the connection blocks (17) is provided on both side walls of the two connecting blocks (17). A releasing mechanism for releasing the limiting mechanism is provided between the two clamping grooves (5) and the side walls of the fixing plate (3).

2. The metal core cathode rod for metal smelting according to claim 1, characterized in that: The connecting mechanism comprises a connecting hook (10) arranged at the lower end of the connecting block (17); the upper ends of the anode rod and the cathode rod body (9) are fixedly connected to a mounting block (8); and the upper ends of the two mounting blocks (8) are each provided with a connecting ring (11) that matches the connecting hook (10).

3. The metal core cathode rod for metal smelting according to claim 2, characterized in that: The limiting mechanism comprises a through groove (18) provided between the side walls on both sides of the connecting block (17), two symmetrically arranged slides (20) are slidably connected in the through groove (18), and a clamping block (21) matching the clamping groove (5) is provided on the opposite side walls of the two slides (20), and the two slides (20) are elastically connected via a first spring (19).

4. The metal core cathode rod for metal smelting according to claim 3, characterized in that: The release mechanism comprises a threaded ring (6) extending between the slot (5) and the side wall of the fixed plate (3), a threaded rod (7) threadedly connected to the threaded ring (6) extending through the threaded ring (6), and a push plate (16) provided at one end of the threaded rod (7) located in the slot (5).

5. The metal core cathode rod for metal smelting according to claim 4, characterized in that: A chamber (23) is provided in the mounting block (8), a through groove (12) is provided between the chamber (23) and the lower end of the mounting block (8), the through groove (12) is annular, a protective plate (13) is provided between the chamber (23) and the through groove (12), two symmetrically arranged triangular blocks (29) are provided at the upper end of the protective plate (13), a limiting ring (30) is provided in the through groove (12), the protective plate (13) passes through the limiting ring (30) and is slidably connected thereto, and the two triangular blocks (29) and the limiting ring (30) are elastically connected via two symmetrically arranged second springs (31).

6. The metal core cathode rod for metal smelting according to claim 5, characterized in that: A double-headed screw (14) is rotatably connected between the chamber (23) and the outer walls on both sides of the mounting block (8), a turntable (15) is provided at one end of the double-headed screw (14), the threads at both ends of the double-headed screw (14) rotate in opposite directions, and movable blocks (26) are provided on the outer walls at both ends of the double-headed screw (14) to match the outer walls thereof, and fixed blocks (27) are provided at the lower ends of the two movable blocks (26), and push blocks (28) are provided at the lower ends of the two fixed blocks (27).

7. The metal core cathode rod for metal smelting according to claim 6, characterized in that: A limiting groove (24) is provided at the upper end of the chamber (23), a limiting rod (25) is provided in the limiting groove (24), and the limiting rod (25) passes through the two moving blocks (26) and is slidably connected thereto.

8. The metal core cathode rod for metal smelting according to claim 7, characterized in that: A first inclined surface (22) is provided on the side walls of the two clamping blocks (21), and a plurality of the first inclined surfaces (22) are respectively slidably connected to the opposite side walls of the two fixing plates (3).

9. The metal core cathode rod for metal smelting according to claim 7, characterized in that: A second inclined surface (32) is provided on the opposite side walls of the two push blocks (28), and the inclined surface of the triangular block (29) is slidably connected to the second inclined surface (32).

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