Submerged arc furnace

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1
Product Unit

Pieces
Origin

China Mainland
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Description

Product Detail

Usage

Submerged Arc Furnace is used for many kinds of ferroalloy smelting, including Ferrotungsten, High-carbon Ferromanganese, Ferrosilicon, ferrochrome, Ferronickel and Silicon, Calcium Carbide, Corundum, Yellow Phosphorous, etc.The nomenclature submerged means that the furnace's electrodes are buried deep in the furnace burden. A reduction reaction takes place near the tip of the electrodes to facilitate the furnace's process.

Furnace structure & main Components:

A submerge arc furnace's shell or casing is fabricated from steel. The lower part is lined with hard blocks of strongly calcined carbon, and the upper part with firebrick. The floor and lower section of the furnace are water-cooled. Three electrodes are placed at the angles of an equilateral triangle with rounded corners. These furnaces can be equipped with either pre-baked electrodes or Söderberg electrodes. The Söderberg electrodes are heated by the electric current and the furnace heat, then baked solid in the region of the contact clamps. The electrode must become baked solid over its entire cross section (inside the charge) when it is fed downwards to compensate for its consumption in the furnace (which is a few centimeters per hour).

Mechanism System:

Furnace Shell
Furnace Cover
Fume exhaust system
Electrode System: electrode holder, electrode lifting device and electrode clamping/ releasing device
Charging System
Hydraulic System
High Current System
Water-cycling system
Tapping System

Electric system:

Transformer
High-voltage control protection system
Low-voltage control protection system
Computer operating system
Heavy gauge water-cooled cable

Main Parameters of Submerged Arc Furnace

Transformer capacity (MVA)	Working voltage (V)	Furnace shall inner dia. (mm)	Electrode dia. (mm)	Products
6.3	110	2000	780	Ferrotungsten; Ferromanganese; Ferrosilicon; Ferrochrome; Ferronickel; Silicon; Calcium Carbide;
12.5	141	2600	1020
16.5	154	3200	1200
25.5	200	8600	1300
31.5	224	11500	1500