A precise alignment stopper rod device and tundish stopper rod alignment process

Abstract

The invention provides a device for aligning a stopper rod precisely. The device is composed of a mechanical automatic control system and a refractory material system. The mechanical automatic controlsystem comprises a cross beam, an angle adjusting bolt, a supporting plate, a guide positioning rod, an outer casing, a sliding core rod, a lifting adjusting loop, a hollow hydraulic cylinder, a pullrod, a shock absorbing spring and a spring compression adjusting nut; the refractory material system comprises an adjusting core rod, a stopper rod, a stopper rod head, a nozzle brick and a seat brick. The device is improved based on an existing stopper rod lifting device. Matched with an aligning process for an intermediate stopper rod, the aligning position of the stopper rod is adjusted by means of the angle adjusting bolt, the length of the stopper rod is adjusted by means of the adjusting core rod, and the central position of the sliding core rod is fixed by means of a positioning rod embedded to the outer casing to achieve precise alignment. The device has the advantages that the stopper rod which is aligned is unlikely to shift and is convenient to detach and debug.

Description

technical field [0001] The invention relates to a device for precisely aligning stopper rods and a process for aligning stopper rods in a tundish, and belongs to the technical field of molten steel pouring equipment. Background technique [0002] The position of the nozzle brick of the tundish stopper mechanism often changes during the repair of the tundish, which makes it difficult to align the stopper rod head and the nozzle brick when installing refractory materials; Deformation and the buoyancy of molten steel are prone to lax closure; the opening stroke of the stopper head depends on manual experience and visual inspection, and the stroke control is not accurate. The position of the controlled stopper head to the nozzle brick is used to adjust the pouring steel flow; During the process, it is necessary to manually press the plate bar of the stopper rod mechanism for a long time, the labor intensity is high, and the temperature outside the bag is high, and sometimes ther...

AI Technical Summary

Problems solved by technology

[0002] The position of the nozzle brick of the tundish stopper mechanism often changes during the repair of the tundish, which makes it difficult to align the stopper rod head and the nozzle brick when installing refractory materials; Deformation and the buoyancy of molten steel are prone to lax closure; the opening stroke of the stopper head depends on manual experience and visual inspection, and the stroke control is not accurate. The position of the controlled stopper head to the nozzle brick is used to adjust the pouring steel flow; During the process, it is necessary to manually press the rod of the stopper mechanism for a long time. The labor intensity is high, and the temperature outside the bag is high. Sometimes there are steel spatters and scald the workers.

Images