Water-cooling electrode ring protection device for electric arc melting furnace

A technology of water-cooled electrodes and protection devices, which is applied in the field of water-cooled electrode ring protection devices and water-cooled electrode ring protection devices in the smelting process of electric arc furnaces for metallurgy and foundry. It can solve problems such as explosions, achieve direct economic benefits, save funds, and reduce production. cost effect

Inactive Publication Date: 2014-03-26
SHANDONG LAIWU COAL MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. Since the temperature of molten steel is as high as 1700°C during the melting period, when the water-cooled electrode ring filled with cooling circulating water enters the high-temperature molten steel, the volume of circulating water will explode due to rapid expansion, which will cause major equipment or personal accidents

Method used

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  • Water-cooling electrode ring protection device for electric arc melting furnace

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Embodiment Construction

[0013] As shown in the figure: fix the fixed support (7) on the cross arm of the electric arc furnace support arm (1), one end of the safety fastening chain I (5) is connected to the fixed support (7), and the other end is connected to the fixed support (7). The plates II (10) are connected, and the connecting plates I (9) / connecting plates II (10) on both sides of the high-voltage insulator (6) are fastened together with bolts and nuts, and one end of the chain II (8) is securely fastened to the connecting plates I (9) is connected, and the other section is connected to the water-cooled electrode ring (4), so that the electric arc furnace water-cooled electrode ring (4) is connected and fastened with the cross arm part of the electric arc furnace support arm (1), and is used as a brick of the furnace cover. When falling, the water-cooled electrode ring (4) of the electric arc furnace is prevented from falling into the high-temperature molten steel along with the furnace cover ...

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Abstract

The invention relates to a water-cooling electrode ring protection device for an electric arc melting furnace. The water-cooling electrode ring protection device is composed of a fixed support, safety fastening chains I / II, a high-voltage insulator, connecting plates I / II and the like. According to the water-cooling electrode ring protection device for the electric arc melting furnace, a water-cooling electrode ring is fixed to an electric arc furnace supporting arm through the fixed support, the safety fastening chains I / II, high-voltage insulator mica, the connecting plates I / II and the like, and the water-cooling electrode ring is prevented from falling into molten steel. The high-voltage insulator is composed of multiple layers of the mica capable of bearing the impact of high voltages and large currents, the high voltages and large currents generated when the electric arc furnace works are isolated from the water-cooling electrode ring, a furnace body and an operation platform, the service life of a furnace cover is prolonged, production cost is lowered, and economic benefits are improved. Personal accidents and equipment accidents caused by the explosion of the molten steel are eradicated.

Description

Technical field [0001] The invention relates to a water-cooled electrode ring protection device, which is especially suitable for the water-cooled electrode ring protection device in the smelting process of an electric arc furnace for metallurgy and casting, and belongs to the field of mechanical metallurgical equipment safety. Background technique [0002] In the smelting process of electric arc furnaces for metallurgy and casting, the main function of the water-cooled electrode ring is to cool the top of the furnace cover and prevent electrode oxidation. At present, the water-cooled electrode ring is generally placed freely on the furnace cover brick horizontally without any fixing device. This structure has the following disadvantages: [0003] 1. The refractory bricks on the inner side of the furnace cover have been baked, scoured and eroded by high-temperature furnace gas for a long time, and the thickness of the refractory bricks gradually decreases. While the refrac...

Claims

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Application Information

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IPC IPC(8): F27B3/20
Inventor 高鹏张雷高龙起
Owner SHANDONG LAIWU COAL MINING MACHINERY
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