Multi-station VD/VOD vacuum refining furnace device

Abstract

The invention discloses a multi-station VD / VOD vacuum refining furnace device. The multi-station VD / VOD vacuum refining furnace device comprises a fixed platform arranged on a processing position, wherein a plurality of movable platforms are arranged on the top of the fixed platform; each movable platform is connected with the fixed platform through a lifting mechanism; a vacuum tank cover is arranged on each movable platform; a corresponding rail is arranged below each movable platform, a trolley is arranged on the rail, a vacuum tank with a steel ladle is arranged on the trolley, one side ofthe top of the fixed platform is separately equipped with a corresponding covering and uncovering mechanism for covering and uncovering a steel ladle thermal insulation cover; and a hanger with a lifting function is arranged above the rail at the right side of the fixed platform. In use, molten steel vacuum treatment and steel ladle lifting can be alternatively performed without mutual interferences; and the steel ladle in the vacuum tank is covered with the thermal insulation cover or uncovers the thermal insulation cover on line, so that molten steel heat preservation and heat insulation and logistics orders are smooth, and steel ladle re-transfer times are reduced. The multi-station VD / VOD vacuum refining furnace device has the advantages of being compact in structure, high in production efficiency, good in safety, and beneficial for equipment upgrading, cost decreasing and benefit increasing.

Description

technical field [0001] The invention relates to the field of arrangement of vacuum refining furnaces in metallurgical equipment, in particular to a multi-station VD / VOD vacuum refining furnace device. Background technique [0002] At present, there are the following two layout forms of double-station VD or VOD vacuum refining furnaces to realize the detachment and fastening of the vacuum tank cover and the vacuum tank. The first type: a vacuum tank cover is movable and lifts between two fixed vacuum tanks; the second type: the two vacuum tank covers are respectively moved above the corresponding fixed vacuum tanks and lifted. [0003] As known, there must be enough space between the vacuum tank cover standby position and the vacuum tank processing position, so as to avoid interfering with driving, transporting ladles and equipment maintenance in the vacuum tank. Therefore, these two layout forms require a long operating platform and a large footprint, which is not suitable ...

AI Technical Summary

Problems solved by technology

These two arrangements are not easy to add or remove the heat preservation cover on-line to the ladle in the vacuum tank, which is not suitable for the current steel mills' demand for heat preservation and energy saving of molten steel in the ladle

If the ladle is to be uncovered and covered, it must be done at other stations, resulting in chaotic logistics, increased ladle reshipments, low production efficiency, and increased cost per ton of steel

[0005] It is known that once a ladle leakage accident occurs, the molten steel is introduced into the leakage plate in the vacuum tank or exported to the leakage pit outside the vacuum tank, the equipment structure is complicated and it is difficult to clean

Obviously, neither of these two forms can meet the needs of equipment replacement, cost reduction, efficiency enhancement, and safety improvement.

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