Method for repairing anode steel stud

Abstract

The invention relates to a method for repairing an anode steel stud. The method for repairing the anode steel stud is characterized in that a burned steel stud head is cut by a section through gas welding, and with the design length of the steel stud head as a reference point, the cut section is longer than the burned section; a cylindrical steel bar with the same diameter as the steel stud head is prepared, one auxiliary connecting piece is arranged between the cutting face of the steel stud head and the cylindrical steel bar through vertical position welding so that the steel stud head and the cylindrical steel bar can be connected, and two same semi-circular bead weld supplement spaces are formed between the cylindrical steel bar and the cross section of the steel stud head; the two same semi-circular bead weld supplement spaces are filled with weld fillets in a bead weld mode, after the bead weld supplement space on one side is welded, the steel stud is turned over, the other bead weld supplement space is welded in a bead weld mode, and therefore repair of one steel stud is finished. The method for repairing the anode steel stud has the advantages that the anode steel stud repaired in the method is low in pressure drop, repeated repair on the anode steel stud can be achieved in the method, and production cost of electrolytic aluminum is reduced greatly.

Description

technical field [0001] The invention relates to a method for repairing anode steel claws, and belongs to the technical field of repairing anode steel claws for burning damage in the electrolytic aluminum industry. Background technique [0002] The anode steel claw is a device that must be used in the daily production of electrolytic aluminum enterprises. The anode steel claw includes a steel claw body, and steel claw heads are arranged on the steel claw body. The anode steel claws are integral steel castings. There are two commonly used anode steel claws. One is that four steel claw heads are arranged in a single row on the steel claw body, and the other is that there are six steel claw heads arranged in double rows on the steel claw body. One steel claw head, the anode steel claws with four steel claw heads are suitable for single anode electrolytic cells, and the anode steel claws with six steel claw heads are suitable for double anode electrolytic cells. In the productio...

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Problems solved by technology

[0008] The object of the present invention is to aim at the defects of the existing steel claw maintenance methods, and provide a method that does not require special equipment, is low in cost, has a small increase in pressure drop of the repaired anode steel claw, has low power consumption, and is of good quality, and can perform multiple repairs on the steel claw. The repair method of the repaired anode steel claw

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