Anode horizontal bus repairing structure of aluminum electrolysis cell

Abstract

The utility model belongs to the technical field of aluminum electrolysis cell anode horizontal bus repairing, and particularly relates to an aluminum electrolysis cell anode horizontal bus repairing structure which comprises a horizontal bus and a dovetail block, the horizontal bus is provided with a plurality of dovetail grooves with fixed inclination along the length direction, the width size of an upper opening of each dovetail groove is large, and the dovetail block is arranged in the dovetail groove. The width of the lower opening is small; the shape and the size of the dovetail block correspond to those of the dovetail groove, and the dovetail block is arranged in the dovetail groove in an embedded mode. The whole dovetail structure is compact in design, up-down, front-back and left-right movement of the dovetail block can be limited, the expected effect is achieved, transmission surfacing repair is replaced, replacement can be achieved at any time, and the conductive sparking phenomenon is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the aluminum electrolysis cell anode horizontal busbar repair technical field, especially to a kind of aluminum electrolysis cell anode horizontal busbar repair structure. BACKGROUND

[0002] Anode horizontal busbar in the upper part of aluminum electrolysis cell, in the production process, bear the role of electric conduction, according to the size of cell, its length is several meters, weight is several tons, left and right each one, and the balance busbar group welding into a frame structure, constitute a component, cannot be disassembled, anode horizontal busbar relies on fixture to lift up multiple groups of anode group, and through fixture, make anode aluminum guide rod and anode horizontal busbar contact together by crimping, make circuit conduction.

[0003] REFERENCE Figure 1 and Figure 2 One side of aluminum guide rod 2 and anode horizontal busbar 1 contact together by crimping, and both have contact surface 11, and aluminum guide rod 2 bottom end is provided with anode group 21.In the production process, aluminum guide rod 2 is periodically raised and lowered, time is long, and the contact surface 11 between anode aluminum guide rod 2 and anode horizontal busbar 1 is caused by flatness, dust and other reasons Contact failure, and the contact surface fires in the process of power on will cause the contact surface of both to burn to varying degrees, and the resistance increases, and heat is generated, and energy loss is caused.Therefore, when electrolytic cell is shut down for overhaul, the contact surface 11 of both needs to be repaired.

[0004] The existing repair technology is to use surfacing method, and the depth of the pits generated by burning loss is different in the repair process of each contact surface 11, and currently, the entire contact surface 11 is surfaced by using aluminum welding wire, and then the special milling machine is used to mill flat, to the level of the surface of anode horizontal busbar 1.

[0005] The existing problems of the surfacing technology are as follows:

[0006] 1, low efficiency: the operator gradually accumulates aluminum welding wire on the burned surface by argon arc welding machine, and a skilled worker completes 4-5 surfaces in a shift, according to the size of electrolytic cell, the surface to be accumulated on a busbar has dozens of guide rod contact surfaces, and two busbars need to be surfaced in a cell, and after welding, each surface also needs to be milled flat by special milling machine, and finally manually polished smooth.

[0007] 2, quality is difficult to guarantee: because the technical ability of welders is different, therefore, in the welding process, the surfacing surface will appear porosity, slag inclusion and other welding defects, after milling machine processing, the defects are exposed, need to be re-surfaced, some enterprises cannot transport out of workshop due to various reasons, if welding is carried out in electrolytic workshop, it is more difficult to weld in the presence of magnetic field environment. UTILITY MODEL CONTENTS

[0008] The aluminum electrolysis cell anode horizontal busbar repairing structure has the advantages that the dovetail block is a big head and a small head, and after being embedded into the dovetail groove, the anode group weight drives the dovetail block to be clamped more tightly, and the dovetail structure prevents the dovetail block from being automatically pulled out, so that the self-locking state is good.

[0009] To achieve the above object, the technical scheme provided by the utility model is:

[0010] The aluminum electrolysis cell anode horizontal busbar repairing structure has the advantages that the dovetail block is a big head and a small head, and after being embedded into the dovetail groove, the anode group weight drives the dovetail block to be clamped more tightly, and the dovetail structure prevents the dovetail block from being automatically pulled out, so that the self-locking state is good.

[0011] Optionally, the aluminum electrolysis cell anode horizontal busbar repairing structure further comprises an inlay strip, the dovetail groove is provided with the inlay strip in a matched mode, the inclination of the inlay strip is the same as that of the dovetail groove, and the inlay strip is arranged in the error gap between the dovetail block and the dovetail groove.

[0012] Optionally, the aluminum electrolysis cell anode horizontal busbar repairing structure further comprises an adjusting screw, the upper end of the horizontal busbar is provided with a countersunk screw hole, the countersunk screw hole is arranged on one side of the dovetail groove, and the adjusting screw is arranged in the countersunk screw hole and used for pressing the inlay strip and the dovetail block.

[0013] Optionally, the angle a of the dovetail groove is 55°.

[0014] Optionally, the inclination of the dovetail groove is 1 / b, and b is 60.

[0015] Optionally, the dovetail block is made of aluminum.

[0016] Optionally, four connecting holes are formed in the horizontal busbar on the two sides of the dovetail groove, and the aluminum guide rod on the anode group is clamped to the dovetail block by four bolts through a clamp.

[0017] The utility model has the following advantages and beneficial effects:

[0018] 1. Since the dovetail block is a big head and a small head, after being embedded into the dovetail groove, the anode group weight drives the dovetail block to be clamped more tightly, and the dovetail structure prevents the dovetail block from being automatically pulled out, so that the self-locking state is good.

[0019] 2. The aluminum guide rod on the anode group is clamped to the dovetail block by four bolts through a clamp, and the aluminum material is relatively soft, so that the aluminum guide rod is tightly pressed and connected during pressing and connecting, and the conductivity is good.

[0020] 3. When the surface of the dovetail block is burned during the production process, the dovetail block can be replaced at any time without waiting for the cell to be overhauled, and during replacement, the dovetail block can be knocked out from the bottom to the top, and the dovetail block is loosened more and more, which is very convenient to operate, and then the new dovetail block can be installed.

[0021] 4. In order to eliminate the width error of the dovetail groove and the dovetail block, the inlay strip is used, that is, the inlay strip is also made into a strip-shaped part with the same slope, so that the gap problem caused by any processing error is eliminated.

[0022] 5. In the production process, in order to prevent the guide rod from moving up and down to loosen the dovetail block, in the case of conduction, the phenomenon of sparking will occur. By adjusting the screw to compress the inlay strip, the dovetail block and the dovetail groove are tightly pressed, and the upward and downward movement of the dovetail block is locked.

[0023] 6. The entire dovetail structure is designed to be compact, and the dovetail block can be limited to move up and down, forward and backward, and left and right, so as to achieve the expected effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a connection structure diagram of the anode guide rod and the horizontal bus in the prior art;

[0025] Figure 2 It is a structure diagram of the contact surface of the horizontal bus in the prior art;

[0026] Figure 3 It is a schematic view of the anode horizontal bus repair structure of the aluminum electrolytic cell in the utility model;

[0027] Figure 4 It is a front view of the anode horizontal bus in the utility model;

[0028] Figure 5 It is a top view of Figure 4 ;

[0029] Figure 6 It is a partial enlarged view of part of the structure in Figure 4 ;

[0030] Figure 7 It is a schematic view of the dovetail block in the utility model;

[0031] Figure 8 It is a front view of the dovetail block in the utility model;

[0032] Figure 9 It is a top view of Figure 8 ;

[0033] Figure 10 It is a schematic view of the inlay strip in the utility model;

[0034] Figure 11 It is a schematic view of the adjusting screw in the utility model.

[0035] Reference numerals: 1-Horizontal busbar, 11-Contact surface, 12-Dovetail groove, 13-Connecting hole, 14-Counterhead threaded hole, 141-Threaded hole section, 142-Round hole, 2-Anode guide rod, 21-Anode assembly, 3-Dovetail block, 4-Inlay, 5-Adjusting screw, 51-Pressure nut. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] Example

[0039] like Figures 1-11 As shown, a repair structure for the horizontal busbar of an aluminum electrolytic cell anode includes a horizontal busbar 1 and dovetail blocks 3. The horizontal busbar 1 has several dovetail grooves 12 with fixed slopes along its length. The upper opening of each dovetail groove 12 is wider than its lower opening. The shape and size of the dovetail blocks 3 correspond to the dovetail grooves 12, and the dovetail blocks 3 are embedded in the dovetail grooves 12, replacing the traditional welding method. After the dovetail blocks 3 are embedded in the dovetail grooves 12, the guide rod 2 contacts and conducts electricity with the dovetail blocks 3. The dovetail blocks 3 are machined, ensuring quality and improving maintenance efficiency. Because the dovetail blocks 3 have different sizes, after being embedded in the dovetail grooves 12, during the production process, the weight of the anode assembly 21 downwards will cause the dovetail blocks 3 to be locked tighter, preventing them from falling out. Furthermore, due to the dovetail structure, they will not detach on their own, resulting in a good self-locking state. When the surface of dovetail block 3 is burned during the production process, it can be replaced at any time without waiting for the major overhaul of the groove. When replacing it, simply knock the dovetail block 3 out from the bottom up. Because it is a combination of large and small ends, it becomes looser the more it is knocked, which is very easy to operate. Then, the new dovetail block 3 can be installed.

[0040] Further, the aluminum electrolysis cell anode horizontal busbar repair structure further comprises an inlay strip 4, the inlay strip 4 is arranged on the dovetail groove 12 in a matched mode, the slope of the inlay strip 4 is the same as the slope of the dovetail groove 12, and the inlay strip 4 is arranged in the error gap between the dovetail block 3 and the dovetail groove 12. In order to eliminate the width error of the dovetail groove 12 and the dovetail block 3, the inlay strip 4 is used for processing, that is, the inlay strip 4 is also made into a strip-shaped part with the same slope, so that the gap problem caused by any processing error is eliminated.

[0041] Further, the aluminum electrolysis cell anode horizontal busbar repair structure further comprises an adjusting screw 5, the adjusting screw 5 is provided with a compression nut 51, the upper end of the horizontal busbar 1 is provided with a countersunk threaded hole 14, the countersunk threaded hole 14 comprises a threaded hole section 141 and a round hole section, the round hole section is communicated with one side of the dovetail groove 12 (as shown in the figure), the countersunk threaded hole 14 is arranged at one side of the dovetail groove 12, the adjusting screw 5 is arranged in the countersunk threaded hole 14, and the inlay strip 4 and the dovetail block 3 are compressed through the compression nut 51. In the production process, in order to prevent the guide rod from moving up and down to loosen the dovetail block 3, the inlay strip 4 is compressed through the adjusting screw 5, so that the dovetail block 3 is extruded and closely attached to the dovetail groove 12, and the dovetail block 3 is locked to move up and down. Figure 6

[0042] Further, the angle a of the dovetail groove 12 is 55°, that is, a standard angle milling cutter can be used for processing, and the strength of the dovetail bevel is ensured.

[0043] Further, the slope of the dovetail groove 12 is 1 / b, wherein b is 60.

[0044] Further, the dovetail block 3 is made of aluminum material, and the aluminum material is AL1070.

[0045] Further, four connecting holes 13 are formed in the horizontal busbar 1 on the two sides of the dovetail groove 12, and the aluminum guide rod on the anode group 21 is clamped with the dovetail block 3 through a clamp and four bolts. The aluminum guide rod on the anode group 21 is clamped with the dovetail block 3 through a clamp and four bolts, and the aluminum material is relatively soft, so that the aluminum guide rod is closely attached and well conducts electricity when being pressed.

[0046] The whole dovetail structure is compactly designed, the dovetail block 3 can be limited to move up and down, forward and backward, and left and right, and the expected effect is achieved.

[0047] The above is only a preferred embodiment of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can be variously changed and varied. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.​

Claims

1. An anode horizontal busbar repair structure for an aluminium reduction cell, characterised in that: The horizontal busbar is provided with a plurality of dovetail grooves with fixed slope along the length direction, the upper opening of the dovetail groove is wide, and the lower opening is narrow; the dovetail block is embedded in the dovetail groove.

2. The aluminium electrolysis cell anode horizontal busbar repair structure according to claim 1, c h a r a c t e r i s e d in that: The dovetail groove is provided with an inlay strip, the slope of the inlay strip is the same as that of the dovetail groove, and the inlay strip is arranged in the error gap between the dovetail block and the dovetail groove.

3. The aluminium electrolysis cell anode horizontal busbar repair structure according to claim 2, c h a r a c t e r i s e d in that: The horizontal busbar is provided with a countersunk screw hole at the upper end, the countersunk screw hole is arranged on one side of the dovetail groove, and the adjusting screw is arranged in the countersunk screw hole to press the inlay strip and the dovetail block.

4. The aluminum electrolysis cell anode horizontal busbar repair structure of claim 1, characterized by: The angle a of the dovetail groove is 55°.

5. The aluminum electrolysis cell anode horizontal busbar repair structure of claim 1, characterized by: The slope of the dovetail groove is 1 / b, wherein b is 60.

6. The aluminum electrolysis cell anode horizontal busbar repair structure of claim 1, characterized by: The dovetail block is made of aluminum material.

7. The aluminium electrolysis cell anode horizontal busbar repair structure according to claim 6, characterized in that: Four connecting holes are arranged on the horizontal busbar on both sides of the dovetail groove, and the aluminum guide rod on the anode group is clamped with the dovetail block by four bolts through a clamp.

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