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Electrode clamping arm and electric arc furnace

An electrode clamping and electrode technology, which is applied in the field of electric arc furnaces, can solve problems such as affecting the normal production of electric arc furnaces and reducing electrode life, and achieve the effects of ensuring smoothness and safe use, prolonging service life, and ensuring structural safety.

Pending Publication Date: 2020-01-21
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These situations will correspondingly reduce the life of the electrode and affect the normal production of the electric arc furnace.

Method used

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  • Electrode clamping arm and electric arc furnace
  • Electrode clamping arm and electric arc furnace
  • Electrode clamping arm and electric arc furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An embodiment of the present invention provides an electrode clamping arm 4 , which is mainly used in an electric arc furnace to clamp the electrode 3 to facilitate the lifting of the electrode 3 .

[0030] Such as Figure 1-Figure 3 as well as Figure 5-Figure 6 , the electrode clamping arm 4 includes a fixed section 41 , a rotating section 42 and a compensating section 43 . Generally, the fixed section 41 is used to connect with the electrode lifting drive mechanism 5 , and the fixed section 41 is driven up and down by the electrode lifting drive mechanism 5 , thereby driving the electrode 3 to lift up and down. The rotating segment 42 is hinged to the fixed segment 41 and the axis of the hinge axis is parallel to the vertical direction. The compensating segment 43 is movably connected to the rotating segment 42 and the moving direction is parallel to the rotation direction. In the axial direction of the section 42 , an electrode clamping mechanism is provided at th...

Embodiment 2

[0042] Such as figure 1 and Figure 7 , the embodiment of the present invention provides an electric arc furnace, including a furnace body 2, a furnace cover 1 and at least one electrode 3 pierced on the furnace cover 1, each electrode 3 is equipped with an electrode clamping arm 4 and a In the electrode lifting drive mechanism 5 that drives the electrode clamping arm 4 to rise and fall, the electrode clamping arm 4 is preferably the electrode clamping arm 4 provided in the first embodiment above, and the specific structure of the electrode clamping arm 4 I won't go into details here.

[0043] Generally, the steelmaking electric arc furnace is equipped with three electrodes 3 , and the three electrodes 3 are evenly spaced around the central axis of the furnace cover 1 , that is, the central axis of the furnace cover 1 passes through the center of the pole center circle corresponding to the three electrodes 3 .

[0044] In an optional embodiment, the above-mentioned furnace b...

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PUM

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Abstract

The invention relates to an electric arc furnace and an electrode clamping arm thereof. The electrode clamping arm comprises a fixing segment, a rotating segment and a compensation segment. The rotating segment is hinged to the fixing segment, and the axial direction of a hinge shaft is parallel to the vertical direction. The compensation segment is movably connected to the rotating segment, the moving direction is parallel to the axial direction of the rotating segment, and the front end of the compensation segment is provided with an electrode clamping mechanism. Through the segmented designof the electrode clamping arm, the rotating segment can rotate relative to the fixing segment, the situation that a traditional rigidity clamping arm clamps an electrode is avoided, and when the electrode is subjected to collisions from furnace burden or a furnace cover, the electrode can slightly deflect so that buffering and force unloading can be achieved, the electrode is well protected, andthe service life of the electrode is prolonged. In some manners, when the electrode is actively driven to rotate, the electrode clamping arm can well adapt to the electrode rotating motion requirement, and smoothness and usage safety of electrode rotation are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of metallurgical equipment, and in particular relates to an electrode clamping arm and an electric arc furnace including the electrode clamping arm. Background technique [0002] An electric arc furnace is an electric furnace that smelts ores and metals at high temperatures generated by electrode arcs. When the gas discharge forms an arc, the energy is very concentrated, and the arc temperature is above 3000°C. For smelting metals, the electric arc furnace is more flexible than other steelmaking furnaces. It can effectively remove impurities such as sulfur and phosphorus. The furnace temperature is easy to control and the equipment occupies a small area. It is suitable for smelting high-quality alloy steel. [0003] Electric arc furnaces can be divided into three-phase electric arc furnaces, consumable electric arc furnaces, single-phase electric arc furnaces and resistance electric arc furnaces, etc. Among...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B3/20F27D11/10
CPCF27B3/20F27D11/10
Inventor 尉强陈洪智褚学征
Owner WISDRI ENG & RES INC LTD