Steel-making converter oxygen lance repairing device and repairing method thereof

Abstract

The invention discloses a steel-making converter oxygen lance repairing device and a repairing method thereof. The repairing device comprises an oxygen lance repairing platform, and a lance head ejecting component and a lance body rotating component are arranged on the oxygen lance repairing platform; the lance head ejecting component comprises a workbench, a guide rail horizontally arranged in the left-right direction is arranged on the top face of the workbench, an ejecting head used for ejecting a lance head into the left end of an oxygen lance body is arranged at the left end of the guide rail, and the ejecting head is driven by a driving part to horizontally move along the guide rail; the oxygen lance repairing platform is provided with a jig frame used for supporting a lying-down oxygen lance body; the lance body rotating component comprises a supporting arm, the supporting arm is fixedly connected with the right end of the oxygen lance body, and the supporting arm is driven by a power component to rotate. By using the repairing device, replacement of the oxygen lance head and repairing and welding of the oxygen lance body can be rapidly completed, the repairing efficiency can be improved, the repairing quality can be ensured, the maintenance time can be shortened, and the safety risk occurring during personnel maintenance is reduced.

Description

technical field [0001] The invention belongs to the technical field of repair tooling, and in particular relates to a repair device for an oxygen lance of a steelmaking converter and a repair method thereof. Background technique [0002] At present, the Boiler Project Department of Baosteel No. 7 Branch Company of China Metallurgical Corporation undertakes the repair project of the oxygen lance in the steelmaking area of ​​Shaoguan Iron and Steel Plant. Due to the poor environment and high frequency of use of the oxygen lance, rupture of the oxygen lance pipe or the rupture of the oxygen lance head often occurs. The phenomenon of water leakage or slagging on the gun body will affect the normal production rhythm and production quality, so the oxygen gun needs to be repaired. The repair of the oxygen lance requires the cooperation of 8 people and takes 8 hours, of which the installation and welding processes account for 60% of the repair time. On average, the oxygen lance need...

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Problems solved by technology

[0004] Chinese patent CN209477491U discloses a rotating device for oxygen gun welding, which includes a frame, motor, gear, chain, reducer, protective cover, U-shaped bayonet clamping device and load-bearing frame, and the gear is put on the motor shaft to pass The chain drives the reducer to work, and the reducer drives the U-shaped bayonet clamping device to rotate, and the U-shaped bayonet clamping device clamps the bent branch pipe of the oxygen lance to drive the oxygen lance to rotate together. In this patent, the gear is put on the motor shaft and passes through the chain. Drive the reducer to work, the reducer drives the U-shaped bayonet clamping device to rotate, the gears cooperate with the chain to rotate, and there will be a large drop when the rotating device reaches the highest point, and the structure of the chain cannot guarantee the rotation speed of each point. Uniform, and the motor selected in this patent cannot control the rotation speed. If you need to choose a slower point during welding, you need to stop the motor. Therefore, this patent cannot allow multiple options for welding speed, and cannot meet the different needs of welders for welding speed

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