Energy saving two-stage electroslag refining system capable of outputting molten metal

Abstract

An energy saving two-stage electroslag refining system capable of outputting molten metal, comprising a double self-consumable electrode auto-feed regulator (A), an electroslag refining crucible oven (B), a metal level automatic checking system and automatic control system (C), an induction heating holding furnace (D) and the like. The double self-consumable electrode (6) outputted by the double self-consumable electrode auto-feed regulator is refined in the electroslag refining crucible oven, then the obtained molten metal is introduced to the induction heating holding furnace for heat insulation and the molten metal outputted from the induction heating holding furnace is used for casting. The electroslag refining crucible oven(B) is a bottom-opening electroslag refining crucible oven which has an molten metal outlet at the bottom, the induction heating holding furnace is arranged below the bottom-opening electroslag refining crucible oven, which has a molten metal import(12) and a molten metal outlet(17), the molten metal outlet(11) of the bottom-opening electroslag refining crucible oven is communicated with the molten metal import(12) of the induction heating holding furnace. The invention has the advantages that the energy-saving and cost-reducing in the electroslag metallurgy process are realized and the application range of electroslag metallurgy is expended; moreover, large capacity of the molten metal can be obtained by an electroslag refining furnace with less power and capacity and comparatively large castings can be made with smaller equipment.

Description

technical field [0001] The invention relates to electroslag metallurgy energy-saving technology and belongs to the technical field of metal material smelting. Background technique [0002] Electroslag metallurgy has the characteristics of pure metal material, dense structure, uniform composition, smooth surface, strong process controllability, and excellent comprehensive performance. It is widely used in industrial sectors such as atomic energy, aerospace, shipbuilding, metallurgy, and heavy machinery. However, the refining and solidification process of electroslag metallurgy is carried out in the water-cooled crystallizer. On the one hand, a large amount of heat energy is taken away by the cooling water, making electroslag metallurgy a high energy-consuming industry in the industrial field, and its average power consumption is about 2500KWH / T casting On the other hand, the molten metal after electroslag refining is directly solidified and formed in the water-cooled crystall...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to aim at the shortcomings of high energy consumption of traditional electroslag metallurgy, to provide a method of energy saving in electroslag metallurgy and related equipment, to realize energy saving and consumption reduction in the process of electroslag metallurgy while maintaining the refining effect of electroslag metallurgy, and to The average power consumption of electroslag metallurgy is reduced to the power consumption level of intermediate frequency furnaces. In the process of electroslag smelting, smelting and solidification are separated, so that the refined metal liquid can be exported and stored, thereby expanding the application range of electroslag metallurgy and making electroslag metallurgy The pure liquid metal from slag refining can not only be solidified and formed in the traditional crystallizer, but also can be made into various new electroslag metallurgical products with pure materials through advanced liquid metal forming technology, and further improve electroslag metallurgy products, especially electroslag metallurgy products. The Quality of Slag Fusion Casting of Complicated Special-shaped Castings

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