Novel anode preheating furnace for aluminum electrolysis

Abstract

The utility model provides a novel anode preheating furnace for aluminum electrolysis, and relates to the technical field of aluminum electrolysis equipment. The novel anode preheating furnace comprises a base, an openable heat preservation bin is arranged on the base, a supporting seat is arranged in the heat preservation bin, a plurality of clamping parts are arranged on the supporting seat, and heating structures are arranged on the supporting seat and the clamping parts. A plurality of clamping parts are arranged to clamp new anodes for aluminum electrolysis, the interior of a heat preservation bin is heated through a heating structure, the anodes are preheated, the new anodes can rapidly reach the working temperature, and the problems of unstable voltage, low efficiency and the like caused by slow temperature rise of the anodes are solved; the supporting seat is made of refractory bricks, direct heating of the base is avoided, and the base is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum electrolysis equipment, in particular to a new anode preheating furnace for aluminum electrolysis. Background Art

[0002] Aluminum electrolysis production mainly adopts cryolite-alumina molten salt electrolysis. In this process, molten cryolite is used as solvent, alumina is used as solute, carbonite is used as anode, and aluminum liquid is used as cathode. When a strong direct current is passed through, an electrochemical reaction is carried out at the two electrodes in the electrolytic cell at a high temperature of 950℃-970℃, thereby obtaining aluminum.

[0003] In aluminum electrolysis production, carbon anodes are constantly replaced with new ones in order to maintain production. However, after replacement, the new anodes will absorb the heat of the electrolytic cell due to their lower temperature, causing uneven temperature in the electrolytic cell and uneven current distribution in the electrolytic cell, thus affecting the efficiency of aluminum electrolysis.

[0004] Therefore, in view of the above problems, a new anode preheating furnace for aluminum electrolysis is proposed to solve the above problems. Summary of the invention

[0005] Aiming at the deficiencies of the prior art, the utility model develops a new anode preheating furnace for aluminum electrolysis. The utility model can preheat the anode of electrolytic aluminum.

[0006] The technical solution of the utility model to solve the technical problem is: a new anode preheating furnace for aluminum electrolysis, including a base, an openable insulation chamber is arranged on the base, a support seat is arranged in the insulation chamber, a plurality of clamping parts are arranged on the support seat, and a heating structure is arranged on the support seat and the clamping parts.

[0007] A plurality of clamping parts are arranged to clamp new anodes for aluminum electrolysis, and the inside of the heat preservation chamber is heated by a heating structure to preheat the anode so that the new anode can quickly reach the working temperature, thereby reducing problems such as voltage instability and low efficiency caused by slow heating of the anode. A heating structure is arranged on the support seat and the clamping part, and the support seat is made of refractory bricks to avoid direct heating of the base and protect the base.

[0008] Preferably, the clamping part includes a mounting platform, a placement groove, a guide hole, a guide rod, a limit plate and a retaining ring. The mounting platform is arranged on the support seat, the placement groove is vertically arranged in the mounting platform, the guide holes are symmetrically arranged on the inner wall of the placement groove, the guide rod is slidably connected in the guide hole, a retaining ring is arranged at the end of the guide rod located outside the placement groove, a limit plate is arranged at the end of the guide rod located in the placement groove, and the limit plate is slidably connected to the inner wall of the placement groove.

[0009] By arranging a support seat and a placement slot, the new anode is vertically arranged in the prevention slot, and the new anode is heated by the hot air in the heat preservation bin, so that the new anode is heated evenly.

[0010] Preferably, the clamping part also includes a compression spring, a clamping plate and a slot. The compression spring is sleeved on the guide rod. One end of the compression spring is connected to the inner wall of the placement groove, and the other end of the compression spring is connected to the limit plate. The clamping plate is horizontally arranged on the side of the limit plate away from the guide rod. The clamping plate is located on the upper part of the limit plate. The slot is arranged on the clamping plate, and the slot is V-shaped.

[0011] The symmetrically arranged clamping plates clamp the new anode through the slots. Under the elastic force of the compression spring, the two clamping plates squeeze and clamp the new anode to prevent the new anode from tipping over. At the same time, the clamping is located on the upper part of the limit plate, clamping the new anode close to the middle section, making the clamping effect of the new anode more stable.

[0012] Preferably, the insulation bin comprises an insulation cover, a boss, a fixed platform and a first hinge joint, the insulation cover is symmetrically arranged on the base, a plurality of bosses are evenly arranged on the outside of the insulation cover, the bosses are connected to the fixed platform through the first hinge joint, and a plurality of fixed platforms are arranged on the base.

[0013] The insulation bin is isolated from the air inside and outside the insulation bin by a symmetrically arranged insulation cover, which reduces the heat loss of the insulation bin to a certain extent. The insulation cover is rotated by a first hinge joint to realize the opening and closing of the insulation cover, which is convenient for placing and taking new anodes.

[0014] Preferably, the insulation bin also includes a connecting column, a second hinge joint, a connecting rod, a third hinge joint and a cylinder. The connecting column is horizontally arranged on the outer side of the outer shell. The connecting column is connected to the connecting rod through the second hinge joint. The connecting rod is connected to the output end of the cylinder through the third hinge joint. The cylinder is arranged on the base.

[0015] The connecting rod is driven to move and rotate through the output end of the oil cylinder and the third hinge joint, the connecting column is driven to move through the movement of the connecting rod and the action of the second hinge joint, and the connecting column drives the heat preservation cover to rotate around the first hinge joint to realize the opening and closing of the heat preservation cover.

[0016] Preferably, the heating structure comprises a first heating wire and a second heating wire, a plurality of first heating wires are arranged on the support seat, and a plurality of second heating wires are arranged on the outer wall of the mounting platform.

[0017] The interior of the insulation bin is heated by the first heating wire and the second heating wire to preheat the new anode to reach the working temperature. The first heating wire is arranged on the support seat, and the support seat is made of refractory bricks to prevent the heating temperature of the first heating wire from being too high to damage the support seat. The second heating wire is arranged on the outer wall of the mounting platform to make the heat source close to the anode located inside the mounting platform to heat the lower part of the anode and improve the effect.

[0018] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0019] A plurality of clamping parts are provided to clamp the new anode for aluminum electrolysis, and the heating structure is used to heat the insulation chamber to preheat the anode so that the new anode can quickly reach the working temperature, thereby reducing the problems of voltage instability and low efficiency caused by slow anode heating;

[0020] The symmetrically arranged clamping plates clamp the new anode through the clamping grooves. Under the elastic force of the compression spring, the two clamping plates squeeze and clamp the new anode to prevent the new anode from tipping over. At the same time, the clamping is located at the upper part of the limit plate, clamping the new anode near the middle section, so that the clamping effect of the new anode is more stable.

[0021] The connecting rod is driven to move and rotate through the output end of the oil cylinder and the third hinge joint, the connecting column is driven to move through the movement of the connecting rod and the action of the second hinge joint, and the connecting column drives the heat preservation cover to rotate around the first hinge joint to realize the opening and closing of the heat preservation cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 It is a schematic diagram of the internal structure of the heat preservation warehouse of the utility model.

[0025] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0026] In the figure, 1. base; 2. insulation chamber; 3. support seat; 4. mounting table; 5. placement slot; 6. guide hole; 7. guide rod; 8. limit plate; 9. retaining ring; 10. compression spring; 11. clamping plate; 12. slot; 13. insulation cover; 14. boss; 15. fixing table; 16. first hinge joint; 17. connecting column; 18. second hinge joint; 19. connecting rod; 20. third hinge joint; 21. oil cylinder; 22. first heating wire; 23. second heating wire. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of this solution, the utility model is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] like Figures 1 to 3 As shown, a new anode preheating furnace for aluminum electrolysis includes a base 1, an openable heat preservation chamber 2 is arranged on the base 1, a support seat 3 is arranged in the heat preservation chamber 2, a plurality of clamping parts are arranged on the support seat 3, and a heating structure is arranged on the support seat 3 and the clamping part. A plurality of clamping parts are arranged to clamp the new anode for aluminum electrolysis, and the heat preservation chamber 2 is heated by the heating structure to preheat the anode, so that the new anode can quickly reach the working temperature, reduce the voltage instability and low efficiency caused by the slow heating of the anode, and the heating structure is arranged on the support seat 3 and the clamping part, and the support seat 3 is made of refractory bricks to avoid direct heating of the base 1 and protect the base 1.

[0029] The clamping part includes a mounting platform 4, a placement groove 5, a guide hole 6, a guide rod 7, a limit plate 8 and a retaining ring 9. The mounting platform 4 is arranged on the support seat 3, the placement groove 5 is vertically arranged in the mounting platform 4, the guide holes 6 are symmetrically arranged on the inner wall of the placement groove 5, the guide rod 7 is slidably connected in the guide hole 6, the retaining ring 9 is arranged at one end of the guide rod 7 outside the placement groove 5, the limit plate 8 is arranged at one end of the guide rod 7 inside the placement groove 5, and the limit plate 8 is slidably connected with the inner wall of the placement groove 5. By arranging the support seat 3 and the placement groove 5, the new anode is vertically arranged in the prevention groove, and the new anode is heated by the hot air in the insulation bin 2, so that the new anode is heated evenly.

[0030] The clamping part also includes a compression spring 10, a clamping plate 11 and a slot 12. The compression spring 10 is sleeved on the guide rod 7. One end of the compression spring 10 is connected to the inner wall of the placement groove 5. The other end of the compression spring 10 is connected to the limit plate 8. The clamping plate 11 is horizontally arranged on the side of the limit plate 8 away from the guide rod 7. The clamping plate 11 is located on the upper part of the limit plate 8. The clamping groove 12 is arranged on the clamping plate 11, and the clamping groove 12 is V-shaped. The symmetrically arranged clamping plates 11 clamp the new anode through the slot 12. Under the elastic force of the compression spring 10, the two clamping plates 11 squeeze and clamp the new anode to prevent the new anode from tipping over. At the same time, the clamping is located on the upper part of the limit plate 8, clamping the new anode near the middle section, so that the clamping effect of the new anode is more stable.

[0031] The heat preservation bin 2 includes a heat preservation cover 13, a boss 14, a fixing platform 15 and a first hinge 16. The heat preservation cover 13 is symmetrically arranged on the base 1. A plurality of bosses 14 are evenly arranged on the outer side of the heat preservation cover 13. The bosses 14 are connected to the fixing platform 15 through the first hinge 16. The plurality of fixing platforms 15 are arranged on the base 1. The heat preservation bin 2 isolates the air inside and outside the heat preservation bin 2 through the symmetrically arranged heat preservation cover 13, which reduces the heat loss of the heat preservation bin 2 to a certain extent. The heat preservation cover 13 rotates through the first hinge 16 to realize the opening and closing of the heat preservation cover 13, which is convenient for placing and taking new anodes.

[0032] The heat preservation bin 2 further includes a connecting column 17, a second hinge joint 18, a connecting rod 19, a third hinge joint 20 and an oil cylinder 21. The connecting column 17 is horizontally arranged on the outer side of the housing. The connecting column 17 is connected to the connecting rod 19 through the second hinge joint 18. The connecting rod 19 is connected to the output end of the oil cylinder 21 through the third hinge joint 20. The oil cylinder 21 is arranged on the base 1. The connecting rod 19 is driven to move and rotate through the output end of the oil cylinder 21 and the third hinge joint 20. The connecting column 17 is driven to move through the movement of the connecting rod 19 and the action of the second hinge joint 18. The connecting column 17 drives the heat preservation cover 13 to rotate around the first hinge joint 16, so as to realize the opening and closing of the heat preservation cover 13.

[0033] The heating structure includes a first heating wire 22 and a second heating wire 23, a plurality of first heating wires 22 are arranged on the support seat 3, and a plurality of second heating wires 23 are arranged on the outer wall of the mounting platform 4. The first heating wire 22 and the second heating wire 23 are used to heat the inside of the heat preservation bin 2, so that the new anode is preheated to reach the working temperature. The first heating wire 22 is arranged on the support seat 3, and the support seat 3 is made of refractory bricks to prevent the heating temperature of the first heating wire 22 from being too high to damage the support seat 3. The second heating wire 23 is arranged on the outer wall of the mounting platform 4, so that the heat source is close to the anode located inside the mounting platform 4, and the lower part of the anode is heated to improve the effect.

[0034] Working principle: The new anode for aluminum electrolysis is placed in the heat preservation chamber 2 before use. The new anode is clamped by the clamping groove 12 on the clamping plate 11 so that most of the outer surface of the new anode is in contact with the hot air. The first heating wire 22 and the second heating wire 23 in the heat preservation chamber 2 are heated, and the new anode is preheated by the hot air to prevent the voltage instability caused by the low temperature of the new anode when it is used.

[0035] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, this does not limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A new anode preheating furnace for aluminum electrolysis, characterized in that: It comprises a base (1), an openable heat preservation chamber (2) is arranged on the base (1), a support seat (3) is arranged inside the heat preservation chamber (2), a plurality of clamping parts are arranged on the support seat (3), and a heating structure is arranged on the support seat (3) and the clamping parts; The clamping portion comprises a mounting platform (4), a placement groove (5), a guide hole (6), a guide rod (7), a limit plate (8) and a retaining ring (9); the mounting platform (4) is arranged on the support seat (3); the placement groove (5) is vertically arranged in the mounting platform (4); the guide holes (6) are symmetrically arranged on the inner wall of the placement groove (5); the guide rod (7) is slidably connected in the guide hole (6); a retaining ring (9) is arranged at one end of the guide rod (7) located outside the placement groove (5); a limit plate (8) is arranged at one end of the guide rod (7) located inside the placement groove (5); the limit plate (8) is slidably connected to the inner wall of the placement groove (5).

2. The new anode preheating furnace for aluminum electrolysis according to claim 1 is characterized in that: The clamping portion further comprises a compression spring (10), a clamping plate (11) and a clamping groove (12); the compression spring (10) is sleeved on the guide rod (7); one end of the compression spring (10) is connected to the inner wall of the placement groove (5); the other end of the compression spring (10) is connected to the limit plate (8); a clamping plate (11) is horizontally arranged on the side of the limit plate (8) away from the guide rod (7); the clamping plate (11) is located on the upper part of the limit plate (8); and the clamping groove (12) is arranged on the clamping plate (11); the clamping groove (12) is V-shaped.

3. The new anode preheating furnace for aluminum electrolysis according to claim 1 is characterized in that: The heat-insulating bin (2) comprises a heat-insulating cover (13), a boss (14), a fixing platform (15) and a first hinge joint (16); the heat-insulating cover (13) is symmetrically arranged on the base (1); a plurality of bosses (14) are evenly arranged on the outer side of the heat-insulating cover (13); the bosses (14) are connected to the fixing platform (15) via the first hinge joint (16); and a plurality of the fixing platforms (15) are arranged on the base (1).

4. The new anode preheating furnace for aluminum electrolysis according to claim 3 is characterized in that: The heat preservation bin (2) further comprises a connecting column (17), a second hinge joint (18), a connecting rod (19), a third hinge joint (20) and an oil cylinder (21); the connecting column (17) is horizontally arranged on the outer side of the shell of the heat preservation bin (2); the connecting column (17) is connected to the connecting rod (19) via the second hinge joint (18); the connecting rod (19) is connected to the output end of the oil cylinder (21) via the third hinge joint (20); and the oil cylinder (21) is arranged on the base (1).

5. The new anode preheating furnace for aluminum electrolysis according to claim 1 is characterized in that: The heating structure comprises a first heating wire (22) and a second heating wire (23); a plurality of the first heating wires (22) are arranged on a support seat (3); and a plurality of the second heating wires (23) are arranged on an outer wall of a mounting platform (4).

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