a cover device

Abstract

The invention provides a capping device. The capping device is applied to a steel ladle tundish and comprises a driving component and a capping swinging arm mechanism, wherein the capping swinging armmechanism comprises force application components and driving arms; one ends of the force application components are connected with the driving component and the other ends of the force application components make contact with one ends of first group driving arms through limiting blocks; sealing caps are mounted at the other ends of the driving arms and the sealing caps are used for sealing pouring holes of the tundish; therefore, when the pouring holes of the tundish need to be capped and sealed, the pouring holes can be sealed in the way of using the driving component to act on the force application components, driving the driving arms to move simultaneously by the force application components and placing the sealing caps on the pouring holes of the tundish by the driving arms; the pouring holes of the tundish are sealed during the course of pouring, so that the tundish can maintain an oxidizing atmosphere, molten steel can be prevented from oxidation and the quality of steel can beguaranteed.

Description

technical field [0001] The invention belongs to the technical field of slab continuous casting, and in particular relates to a capping device. Background technique [0002] The continuous casting process adopts strict protection measures to prevent secondary oxidation of molten steel, which is of great significance to steel quality and production cost. [0003] In recent years, most of the slab continuous casting at home and abroad adopt the traditional tundish sealing method to prevent the secondary oxidation of molten steel, mainly including: first, the ladle-tundish connection adopts a long nozzle; second, the tundish is covered, but The cover is provided with holes, and each hole is used as a shroud, for stopper rod insertion and for sampling; thirdly, adding covering slag to the surface of molten steel in the tundish. However, due to the many and large openings of the tundish cover, it is difficult to maintain a non-oxidizing atmosphere in the tundish during the pourin...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a capping device, which is used to solve the problem that in the prior art, during the continuous casting process, due to the many and large openings of the tundish cover, the It is difficult to maintain a non-oxidizing atmosphere, resulting in the oxidation of molten steel, which reduces the technical problem of steel quality

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