Repairing method for torpedo ladle lining

Abstract

The invention discloses a repairing method for a torpedo ladle lining, and belongs to the technical field of metallurgical technologies. The repairing method comprises the steps of firstly removing apouring material of a furnace mouth, conducting cleaning, then removing one layer of bricks or two layers of bricks at the position, near the furnace mouth, of a working layer, conducting cleaning, and building customized bricks at the removed position; then inversing a torpedo ladle to enable the furnace mouth to be downward, and erecting a mold on the upper portion of the torpedo ladle; then pouring a pouring material on the upper portion of the torpedo ladle along the mold, then curing the poured pouring material, and removing the mold; and finally, turning over the torpedo ladle to enablethe furnace mouth to be upward, and repairing a melting loss part, at the lower portion of the torpedo ladle, of the working layer. The repairing method aims to overcome the shortcoming that in the prior art, when a corroded torpedo ladle lining is repaired, the repaired torpedo ladle lining is poor in quality; and by means of the repairing method, the compactness of the pouring material can be improved, the corrosion resistance of the torpedo ladle lining can be improved, the quality of the repaired torpedo ladle lining is improved, and the service life of the repaired torpedo ladle lining isprolonged.

Description

technical field [0001] The invention relates to the technical field of metallurgical technology, in particular to a method for repairing the inner lining of a mixed iron vehicle. Background technique [0002] The mixed iron car is a horizontally long torpedo-shaped iron ladle used in large blast furnaces. The mixed iron car includes a reducer, a torpedo tank fulcrum and a bearing seat. The fulcrum is supported by the bearing seat. The output shaft of the reducer and the fulcrum are connected in a coaxial manner, which can be a coaxial rigid fixed connection or a coaxial flexible connection. The mixed iron car is a major equipment connecting the ironmaking process and the steelmaking process in the metallurgical industry. It transports the high-temperature molten iron smelted in the blast furnace to the steel plant. The mixed iron car is a high-risk and important equipment, because it holds high-temperature molten iron and is transported over long distances. At the same time...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages in the prior art that when repairing the eroded inner lining of a mixed iron car, the compactness of the poured castable is low, which leads to poor quality of the inner lining of the repaired mixed iron car. A method for repairing the inner lining of a mixed iron car is provided, which can increase the compactness of the pouring material, thereby improving the anti-corrosion ability of the inner lining of the mixed iron car, thereby improving the quality and service life of the repaired inner lining of the mixed iron car

Images