Novel electrolytic anode steel claw and assembled carbon anode for electrolytic aluminum

Abstract

The utility model relates to the technical field of aluminum electrolysis production, and discloses a novel electrolytic anode steel claw and an assembled carbon anode for electrolytic aluminum, the steel claw comprises a steel claw body, a plurality of tapping claws and a locking rod, the steel claw body is provided with a plurality of claw heads, the top of each tapping claw is provided with an inserting rod, one side of the top of each inserting rod is provided with an inclined groove, and the locking rod is provided with a locking groove. Inserting holes are formed in the bottoms of the claw heads, and the inserting rods of the tapping claws are inserted into the inserting holes of the claw heads; the steel claw body is provided with through holes which penetrate through the claw heads and are communicated with the inserting holes, locking rods are inserted into the through holes, grooves are formed in the positions, located at the inserting holes of the claw heads, of the side faces of the locking rods, inclined wedge blocks in sliding fit with the inclined grooves of the inserting rods are arranged in the grooves, and the width between the right sides of the grooves and the inclined wedge blocks is equal to the diameter of the inserting rods. And one end of the locking rod is provided with a limiting end, and the other end is screwed with a locking nut. The tapping claw and the steel claw are of a detachable structure, so that the steel claw can be reused, the cost of spare parts is reduced, and meanwhile, the tapping claw has the advantage of being high in disassembly and assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of aluminum electrolysis production technology, and in particular to a novel electrolytic anode steel claw and an assembled carbon anode for aluminum electrolysis. Background Technology

[0002] Carbon anodes for electrolytic aluminum mainly consist of steel claws and anode blocks (carbon blocks). The specific manufacturing method involves placing the claw tips into the carbon bowl of the anode block, and then pouring molten iron into the gap between the claws and the carbon bowl to connect them. Therefore, existing carbon anodes are of a single, integrated structure. However, anodes are continuously consumed during production and require periodic replacement. Traditional integrated carbon anode structures require replacing the entire anode, necessitating the storage of several finished carbon anodes in the warehouse, thus resulting in high spare parts costs.

[0003] Chinese patent application CN202121110294.5, filed on May 21, 2021, discloses a carbon anode assembly structure for electrolytic aluminum. By threading conductive claws to the carbon anode, the residual carbon anode can be easily and quickly removed from the conductive claws after use. While this carbon anode allows for easy removal from the conductive claws, it has the following drawbacks:

[0004] 1. The claw teeth and the carbon anode are connected by threads. There are gaps between the threads, which affect the reliability of the energization between the carbon anode and the conductive claw.

[0005] 2. Multiple claw teeth are screwed to the carbon cup and claw beam of the carbon anode, resulting in low assembly and disassembly efficiency.

[0006] Based on this, this application provides a novel electrolytic anode steel claw with a more reasonable structural design and higher disassembly and assembly efficiency, as well as an assembled carbon anode for electrolytic aluminum to solve the above problems. Utility Model Content

[0007] This utility model aims to solve the technical problems existing in the prior art. Therefore, this utility model provides a novel electrolytic anode steel claw with a more reasonable structural design and higher assembly / disassembly efficiency, as well as an assembled carbon anode for electrolytic aluminum.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] In a first aspect, a novel electrolytic anode steel claw is provided, comprising a steel claw body, multiple connecting claws, and a locking rod. The steel claw body is provided with multiple claw heads, and the top of each connecting claw is provided with an insertion rod. One side of the top of the insertion rod is provided with a slanted groove, and the bottom of each claw head is provided with an insertion hole. The insertion rod of the connecting claw is inserted into the insertion hole of the claw head. The steel claw body is provided with a through hole that penetrates each claw head and communicates with the insertion hole. A locking rod is inserted into the through hole. The side of the locking rod is provided with a groove at the insertion hole position of each claw head. A wedge block that slides and engages with the slanted groove of the insertion rod is provided in the groove, and the width between the right side of the groove and the wedge block is equal to the diameter of the insertion rod. One end of the locking rod is provided with a limiting end, and the other end is screwed with a locking nut.

[0010] In some alternative embodiments, the cross-section of the insertion rod is "D" shaped, and the insertion hole at the bottom of the claw head is also set as a "D" shaped hole.

[0011] In some optional embodiments, a spring washer is provided between the tapping claw and the claw head, the thickness of which is sufficient for the tapping claw's insert rod to be inserted into the claw head's insertion hole so that the inclined groove and the inclined wedge block are aligned.

[0012] In some optional embodiments, the locking rod is further provided with at least one retaining ring groove, in which a limit retaining ring is engaged to limit the displacement of the locking rod.

[0013] In some alternative embodiments, the locking rod is further provided with a pull ring at one end of the limiting end to facilitate pulling the locking rod.

[0014] In some optional embodiments, the top of the tapping claw is provided with a countersunk hole, and the bottom of the claw head is provided with a protrusion that matches the countersunk hole, and the length of the protrusion is equal to the difference between the depth of the countersunk hole and the displacement of the tapping claw during installation.

[0015] Secondly, an assembled carbon anode for electrolytic aluminum is provided, comprising an anode block and the novel electrolytic anode steel claw, wherein the connecting claw of the steel claw is inserted into the carbon bowl of the anode block, and the two are connected by casting molten iron.

[0016] In some alternative embodiments, the bottom of the carbon cup of the anode block is provided with a conical protrusion, and the bottom of the taper is provided with a conical recess that matches the conical protrusion.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model detachably installs a tapping claw on the claw head of the steel claw, and connects the tapping claw to the carbon cup of the anode block. When the anode block needs to be replaced, the tapping claw can be separated from the steel claw, thus realizing the reuse of the steel claw and reducing the cost of spare parts.

[0019] 2. The detachable connection structure between the sub-connecting claw and the steel claw utilizes the inclined wedge block on the locking rod to lock / unlock the sub-connecting claw, enabling quick assembly and disassembly of multiple sub-connecting claws with high efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0021] Figure 1 This is a diagram showing the unlocking state of the connecting claw in a preferred embodiment of the novel electrolytic anode steel claw provided by this utility model.

[0022] Figure 2 This is a diagram showing the unlocking state of the connecting claw in another preferred embodiment of the novel electrolytic anode steel claw provided by this utility model.

[0023] Figure 3 yes Figure 2 Diagram showing the locking state of the tapped claw of the novel electrolytic anode steel claw;

[0024] Figure 4 This is a three-dimensional structural diagram of the locking rod provided by this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the splitting claw provided by this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the fixed-assembly carbon anode for electrolytic aluminum provided by this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1—Steel claw body, 1.1—Claw head, 1.1.1—Protruding post, 2—Divider claw, 2.0—Counterhole, 2.1—Insertion rod, 2.2—Sloping groove, 2.3—Conical recess, 3—Locking rod, 3.1—Groove, 3.2—Sloping wedge block, 3.3—Limiting end, 4—Locking nut, 5—Pull ring, 6—Spring washer, 7—Limiting snap ring, 10—Anode block, 10.1—Carbon cup, 10.2—Conical protrusion, 20—Phosphorus pig iron. Detailed Implementation

[0029] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] Example 1

[0034] As attached Figure 1 Appendix Figure 4 and attached Figure 5 As shown, this embodiment provides a novel electrolytic anode steel claw, including a steel claw body 1, multiple connecting claws 2, and a locking rod 3, wherein:

[0035] The steel claw body 1 is provided with multiple claw heads 1.1, and in this embodiment, four claw heads are arranged at equal intervals.

[0036] As attached Figure 5 As shown, the top of the connector 2 is provided with a rod 2.1, and one side of the top of the rod is provided with a groove 2.2; as shown in the attached figure. Figure 1 As shown, the bottom of the claw head 1.1 is provided with an insertion hole, and the insertion rod 2.1 of the connecting claw 2 is inserted into the insertion hole of the claw head 1.1, and the connecting claw 2 is locked by the locking rod 3. The preferred locking structure of this embodiment is: the steel claw body 1 is provided with a through hole that penetrates each claw head 1.1 and communicates with the insertion hole, and a locking rod 3 is inserted into the through hole; as shown in the attached figure. Figure 4 As shown, the side of the locking rod 3 is provided with a groove 3.1 at the insertion hole position of each claw 1.1. The groove 3.1 is provided with a wedge block 3.2 that slides and engages with the inclined groove 2.2 of the insertion rod 2.1. The width D between the right side of the groove 3.1 and the wedge block 3.2 is equal to the diameter of the insertion rod, ensuring that the insertion rod can enter the groove of the locking rod and that its inclined groove can correspond to the wedge block.

[0037] As attached Figure 1 As shown, one end of the locking rod 3 is provided with a limiting end 3.3, which is used to limit the amount of the locking rod being pushed in, and the other end is screwed with a locking nut 4, which is used to lock the locking rod.

[0038] The locking principle is as follows: The initial state of the locking lever is shown in the attached figure. Figure 1 As shown, insert the pin of the tappet into the insertion hole of the tappet head (with the inclined groove on the pin facing the inclined wedge on the locking rod), aligning the inclined wedge with the inclined groove. Push the locking rod to the right until the limit end contacts the tappet head. During the pushing of the locking rod, the tappet moves upward under the pressure of the inclined wedge on the locking rod. When the locking rod is pushed to the end, the tappet contacts the bottom of the tappet head. Finally, tighten the locking nut to fix the position of the locking rod. Refer to the attached diagram. Figure 3 During disassembly, simply loosen the locking nut and move the locking rod to the left to disengage the wedge block from the groove. At this point, each sub-claw can be easily removed, making disassembly and assembly convenient, quick, and efficient.

[0039] Preferred options are listed below. Figure 5 As shown, the cross-section of the insertion rod 2.1 in this embodiment is D-shaped, and the insertion hole at the bottom of the claw head 1.1 is also D-shaped. This design enables the positioning of the insertion rod's installation direction and facilitates the engagement of the inclined groove on the insertion rod with the inclined wedge on the locking rod.

[0040] Preferred options are listed below. Figure 1 As shown, in this embodiment, the locking rod 3 is also provided with a pull ring 5 at one end of the limiting end 3.3, which facilitates pulling the locking rod. In this embodiment, a rotatable pull ring is preferably used to facilitate the retraction of the pull ring.

[0041] It is worth noting that in other embodiments, the cross-section of the locking rod can be made rectangular to prevent the locking rod from rotating. Alternatively, guide ribs can be provided on the lock, and guide grooves can be provided in the through holes of the steel claws, which can also prevent the locking rod from rotating.

[0042] Example 2

[0043] Based on Example 1, as shown in the appendix Figure 1As shown, in this embodiment, a spring washer 6 is also provided between the tapping claw 2 and the claw head 1.1. The thickness of the spring washer 6 is sufficient to allow the insertion rod 2.1 of the tapping claw 2 to be inserted into the insertion hole of the claw head 1.1, aligning the inclined groove 2.2 with the inclined wedge block 3.2. This design allows the tapping claw to use the spring washer to position its axial position, ensuring that the inclined groove on the insertion rod aligns with the inclined wedge block, reducing assembly difficulty. Furthermore, when the tapping claw is locked, the spring washer is compressed, without affecting its locking mechanism.

[0044] Example 3

[0045] Based on Example 1 or Example 2, as shown in the appendix Figure 1 As shown, in this embodiment, at least one retaining ring groove is provided on the locking rod 3, and a limiting retaining ring 7 is engaged in the retaining ring groove to limit the displacement of the locking rod 3. In this embodiment, the rightward displacement of the locking rod is limited by the limiting end, and the leftward displacement of the locking rod is limited by the limiting retaining ring, so as to achieve precise switching between unlocking and locking of the locking rod and reduce the difficulty of use.

[0046] Example 4

[0047] Based on any of the above embodiments, as shown in the appendix Figure 2 To be continued Figure 5 As shown, in this embodiment, a countersunk hole 2.0 is provided at the top of the tappet 2, and a protrusion 1.1.1 matching the countersunk hole 2.0 is provided at the bottom of the tappet head 1.1. This design reduces the material used in the tappet and also reduces its weight. Preferably, the length of the protrusion 1.1.1 is equal to the difference between the depth of the countersunk hole 2.0 and the displacement of the tappet 2 during installation. This design allows the protrusion to contact the bottom of the countersunk hole of the tappet after it is locked.

[0048] Application examples

[0049] Provides an assembled carbon anode for electrolytic aluminum, as shown in the attached figure. Figure 1 To be continued Figure 6 As shown, it includes an anode block 10 and a novel electrolytic anode steel claw as described in any of the embodiments. The connecting claw 2 of the steel claw is inserted into the carbon bowl 10.1 of the anode block 10, and the two are connected by casting molten phosphorus pig iron 20.

[0050] Preferably, the bottom of the carbon bowl 10.1 of the anode block 10 is provided with a conical protrusion 10.2, and the bottom of the taper 2 is provided with a conical recess 2.3 that matches the conical protrusion 10.2. This design facilitates the positioning of the taper within the carbon bowl, ensures uniform gap between the taper and the carbon bowl, and improves the manufacturing quality of the carbon anode.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel electrolytic anode steel claw comprising a steel claw body, a plurality of claw heads are arranged on the steel claw body; characterized in that: It also comprises a plurality of tapping claws and locking rods, wherein: The top of the tapping claw is provided with an insertion rod, and the top side of the insertion rod is provided with an inclined slot. The bottom of the claw head is provided with an insertion hole, and the insertion rod of the tapping claw is inserted into the insertion hole of the claw head. The steel claw body is provided with a through hole penetrating each claw head and communicating with the insertion hole. A locking rod is inserted into the through hole. The side surface of the locking rod is provided with a groove at the position of the insertion hole of each claw head. An inclined wedge block is arranged in the groove in sliding fit with the inclined slot of the insertion rod. The width between the right side of the groove and the inclined wedge block is equal to the diameter of the insertion rod. One end of the locking rod is provided with a limiting end, and the other end is screwed with a locking nut.

2. The novel electrolytic anode steel claw according to claim 1, characterized in that: The cross section of the insertion rod is in the shape of "D". The insertion hole at the bottom of the claw head is also in the shape of "D".

3. The novel electrolytic anode steel claw according to claim 1, characterized in that: A spring washer is further arranged between the tapping claw and the claw head. The thickness of the spring washer satisfies the condition that the insertion rod of the tapping claw is inserted into the insertion hole of the claw head to align the inclined slot and the inclined wedge block.

4. The novel electrolytic anode steel claw according to claim 1, characterized in that: The locking rod is further provided with at least one snap spring groove. A limiting snap spring is clamped in the snap spring groove to limit the displacement of the locking rod.

5. The novel electrolytic anode steel claw according to claim 1, characterized in that: The end of the locking rod located at the limiting end is further provided with a pull ring to facilitate pulling the locking rod.

6. The novel electrolytic anode steel claw according to claim 1, characterized in that: The top of the tapping claw is provided with a counterbore. The bottom of the claw head is provided with a protruding column matched with the counterbore. The length of the protruding column is equal to the difference between the depth of the counterbore and the displacement of the tapping claw during installation.

7. An assembled carbon anode for electrolytic aluminium production, characterised in that: It comprises an anode block and the novel electrolytic anode steel claw of any one of claims 1 to 6. The tapping claw of the steel claw is inserted into the carbon bowl of the anode block, and the two are connected by casting phosphorus pig iron.

8. The assembled carbon anode for electrolytic aluminium production according to claim 7, characterized in that: The bottom of the carbon bowl of the anode block is provided with a conical protrusion, and the bottom of the tapping claw is provided with a conical pit matched with the conical protrusion.

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