AC hot furnace device with plasma mine

A technology for plasma mines and submerged arc furnaces, which is applied in the field of smelting devices, can solve the problems of short service life of metal plasma guns, complicated equipment and large investment, and achieve the effects of saving electricity and increasing production, cheap equipment and less investment.

Inactive Publication Date: 2006-08-16
罗廷和
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, they are all limited to DC plasma smelting, and DC plasma smelting requires silicon controlled rectifiers and frequency conversion devices and the use of tungsten-thorium (cerium) metal plasma guns. The equipment is complex, the investment is large, and the use of metal plasma guns Short lifespan (less than 100 hours)

Method used

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  • AC hot furnace device with plasma mine

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Experimental program
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Effect test

Embodiment Construction

[0010] like figure 1 As shown, the AC plasma submerged arc furnace device is mainly composed of a submerged arc furnace and a carrier gas preparation device. The submerged arc furnace includes a self-baking electrode 11, a conductive copper tile 12, a short net 15, a hearth 16, and one end of the self-baking electrode 11. Located in the hearth 16, there are three self-baking electrodes 11, the self-baking electrodes 11 are connected with the short net 15 by the conductive copper tile 12, the short net 15 is connected with the AC power supply, and the AC power supply is a three-phase AC power supply. Each of the three self-baking electrodes 11 is buried with a seamless steel pipe. The lower end of the seamless steel pipe is located in the hearth. The diameter of the seamless steel pipe is φ8mm-φ20mm (the diameter is different depending on the capacity of the submerged arc furnace). The upper end is connected with one end of the air inlet pipe 10 by a flexible pipe; the other en...

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Abstract

A alternating plasma mine heating-stove equipment, which comprises the mine heating stove that consist of the self-baking electrode(-), the electric copper tile(-), the short net(-) and the furnace hearth(-), the self-baking electrode(-) which one end of it is located in the furnace hearth(-) is three that each of it(-)connect with the three-phase alternating current, the characteristic is: the self-baking electrode(-) inter the seamless steel pipe which the lower end of it is located in the furnace hearth(-) and the top end of it connect with on end of the tube and the intake tube(-), the other end of the intake tube(-) connect with air-ballast preparing device. The invention does not need to change the original equipment, so it is easy to spread.

Description

technical field [0001] The invention belongs to a smelting device, in particular to a submerged arc furnace device for smelting ferroalloy with AC plasma. Background technique [0002] The submerged arc furnace is an ore reduction furnace that uses carbon as a reducing agent to smelt ferroalloys. The ferroalloys smelted by this device mainly include ferrosilicon, silicon-calcium alloy, carbon ferromanganese, silicon-manganese alloy, carbon ferrochrome, silicon-chromium Alloy, crystalline silicon and ferro-tungsten, etc., whose output accounts for more than 60% of the total output of ferroalloy. The basic process of smelting ferroalloys in a submerged arc furnace is to load the mixed charge into the furnace from the furnace mouth, bury the electrodes in the charge, and heat and melt by the resistance heat generated by the arc and current passing through the charge; the molten metal The slag and slag are accumulated at the bottom of the furnace, and the iron and slag are regu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B3/08
Inventor 罗廷和李伟黄秀龙
Owner 罗廷和
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