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Electroslag smelting electric furnace device

A technology of electroslag smelting and electrode device, which is applied in the direction of improving process efficiency, improving energy efficiency, etc., can solve the problems affecting the smelting quality of electroslag ingots, the danger of electroslag smelting production operations, and the temperature reduction of temperature difference molten pool, etc. Excellent effect, reducing processing accuracy requirements and processing time, reducing the effect of the impact of production time

Active Publication Date: 2017-07-28
宝武特冶航研科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But this existing electroslag smelting electric furnace device has the following defects: 1. Electroslag smelting is generally a process of batch smelting, but when the existing electroslag smelting electric furnace device works in a single system, it takes time to remove the smelting process. , the loading of electroslag before smelting and the preparation of electrode clamping are time-consuming, which makes the overall smelting production efficiency relatively low
2. During the smelting process, the electrode is inserted into the electroslag and then energized and heated, and there is a huge temperature difference between the new billet and the molten pool when the electrode blanks are alternated. Explosion or block falling occurs; falling into molten steel in the mold below will affect production at least, and bring operational danger to electroslag smelting production
The more serious impact is that after the new electrode blank enters the molten pool, the temperature of the molten pool in the crystallizer will suddenly drop due to the excessive temperature difference between the end of the blank and the molten pool, breaking the normal melting environment.
As a result, quality defects such as shells, slag grooves, uneven composition, and impurities appear in the electroslag ingot, which seriously affects the smelting quality of the electroslag steel ingot.
3. In addition, the existing bottom water tank structure of the crystallizer still has the disadvantage of inconvenient disassembly and assembly, which is not conducive to maintenance

Method used

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  • Electroslag smelting electric furnace device
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  • Electroslag smelting electric furnace device

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the best implementation mode and accompanying drawings.

[0038] Such as Figure 1-3 As shown, an electroslag smelting electric furnace device includes a furnace-shaped crystallizer 1' as a whole, an electrode device located on one side of the crystallizer 1', wherein a bottom water tank for cooling is provided at the lower end of the crystallizer 1', and the electrode device includes Pillar 2', on which a cross arm 3' is movable, and the cross arm 3' is installed facing the crystallizer and extending downward into the crystallizer electrode 4', and the electrode 4' includes a fixed part for connecting with the cross arm at the upper section And the lower part is used for the smelting part that is integrated into the electroslag during smelting. The electrode device also includes a lifting mechanism for controlling the lifting of the cross arm along the pillar and a rotating mechanism fo...

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Abstract

The invention discloses an electric furnace system for electroslag metallurgy, comprising a crystallizer in a furnace shape and an electrode unit disposed on one side of the crystallizer. The lower end of the crystallizer is provided with a bottom water tank used for cooling. The electric furnace system further comprises an electrode preheater located on one side of the electrode unit; the electrode preheater comprises a shell; refractory insulating material is disposed within the shell, and the shell is centrally provided with a heating chamber which is vertically set, the upper end of which is open and which allows insertion of the lower end of an electrode; an inductive coil spirally and liftably around the heating chamber is buried in the refractory insulating material, forming a heater. The electric furnace system with a preheating function is high in smelting efficiency, good in safety, good in smelting effect, safe, efficient and energy saving; smelting quality of slag ingots is improved; the bottom water tank is convenient to maintain and change, maintenance cost is lower, and cooling efficiency is improved.

Description

technical field [0001] The invention relates to an electric furnace device for electroslag smelting, in particular to an electric furnace device for electroslag smelting. Background technique [0002] The electroslag smelting electric furnace device is a kind of electroslag remelting smelting equipment. The structure of the electroslag smelting electric furnace device mainly includes a furnace-shaped crystallizer as a whole, and an electrode device located on one side of the crystallizer. The lower end of the crystallizer is provided with a bottom water tank for cooling, and the electrode device includes a pillar. The movable sleeve on the pillar is equipped with a horizontal The arm, on which the electrode extending downwards into the crystallizer is installed facing the crystallizer, the electrode includes the upper part for the fixed part connected with the cross arm and the lower part for the smelting part that is integrated into the electroslag during smelting; it also ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B9/187
CPCY02P10/25
Inventor 吴建军秦洪伟赵伟
Owner 宝武特冶航研科技有限公司
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