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Electric arc furnace

A technology of electric arc furnace and furnace body, applied in the field of electric arc furnace, can solve the problems of poor temperature control effect of furnace cover, high temperature control difficulty, poor cooling effect, etc., and achieves stable structure, reduced manufacturing cost and high support strength. Effect

Inactive Publication Date: 2017-01-04
JIANGSU GUOHONG METAL MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, there are also various designs of the furnace cover. One is made of full refractory bricks, which has poor temperature control and cooling effects, and is also prone to collapse; the other is a full heat dissipation metal furnace cover. This kind of furnace cover is not only expensive, but also because the heat dissipation pipes are all over the entire furnace cover, the cooling is too fast and the temperature control is difficult

Method used

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Embodiment Construction

[0021] See Figure 1 to Figure 4 , the present invention has a furnace body 1, a furnace cover 2 and an electrode 3; the furnace cover 2 is set on the mouth of the furnace body 1, and the electrode 3 extends into the furnace body 1 from the furnace cover 2; One side is provided with a feed port, and the other side of the furnace body 1 is provided with a slag outlet and a discharge port; the furnace cover 2 includes a support frame 21 and a refractory cover body 22; the support frame 21 includes a bottom ring 211, a top Cover 212 and connecting beam 213; the interior of the top cover 212 is hollow; the furnace cover 2 is fixedly provided with a water inlet pipe 23 and an outlet pipe 24 that are connected to the interior of the top cover 212; the bottom ring 211 surrounds Outside the top cover 212 and coaxial with the top cover 212, the upper end surface of the top cover 212 is higher than the upper end surface of the bottom ring 211; the top cover 212 is in the shape of a trun...

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Abstract

The invention relates to an electric arc furnace. The electric arc furnace is provided with a furnace body, a furnace cover and electrodes. The furnace cover covers an opening part of the furnace body. The electrodes stretch into the furnace body from the furnace cover. A feeding port is formed in one side of the furnace body, and a slag outlet and a discharging port are formed in the other side of the furnace body. The furnace cover comprises a supporting frame and a fireproof cover. The supporting frame comprises a bottom ring, a top cover and a connecting beam. The bottom ring surrounds the outer portion of the top cover. The bottom ring and the top cover are connected together through the connecting beam. The fireproof cover is fixedly arranged between the bottom ring and the top cover, and a gap between the bottom ring and the top cover is fully filled. The top cover is provided with electrode holes for the electrodes to penetrate. The electric arc furnace is good in melting effect, stable in structure and low in manufacturing cost.

Description

technical field [0001] The invention relates to metal melting equipment, in particular to an electric arc furnace. 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] An electric arc furnace generally includes a furnace body, a furnace cover and electrodes. Among them, there are many designs of the furnace cover. One is made of full refractory bricks, which has poor temperature control and cooling effects, and is also prone to collapse; the other is a full h...

Claims

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Application Information

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IPC IPC(8): F27B3/08F27B3/16F27B3/24F27B3/12
Inventor 刘国华刘家云陈磊
Owner JIANGSU GUOHONG METAL MATERIAL
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