Structural Characteristics of Submerged Arc Furnace

Submerged arc furnace is an important smelting furnace for reducing and smelting ore, carbon-containing reducing agent, solvent, etc., and producing industrial raw materials and calcium carbide and other chemical raw materials in metallurgical industry.

Mainly used for the production of ferromanganese, ferrochromium, silicon-manganese alloy, ferronickel and other ferrous metal alloys. It is an industrial electric furnace with huge power consumption.

Components: furnace shell, furnace cover, furnace lining, short net, water cooling system, smoke exhaust system, dust removal system, electrode shell, electrode pressing and lifting system, loading and unloading system, controller, burn-through device, hydraulic system, mine It consists of furnace transformers and various electrical equipment.

SAF uses carbon or magnesia refractory material for furnace lining. The electrode is inserted into the material in the furnace for submerged arc operation, and the arc energy and current are used to pass through the material to generate energy due to the resistance of the material to melt the metal. It is an industrial furnace with continuous operation, continuous feeding and intermittent discharge of metal or slag.

70% of the system reactance of the submerged arc furnace is generated by the short-circuit system, and the maximum current can reach tens of thousands of amperes.

Therefore, it is difficult for the natural power factor of the submerged arc furnace to reach more than 0.85, which will lead to a series of reasons. The power imbalance between the three phases increases, and the highest unbalance can reach more than 20%, which leads to low smelting efficiency and increased electricity costs.

Therefore, in order to improve the smelting efficiency and reduce the energy consumption, it is necessary to improve the power factor of the short grid and reduce the imbalance of the grid. so as to achieve the following effects:

(1) Reduce power consumption by 5~20%;

(2) Increase production by more than 5%~10%

Therefore, whether you need the entire furnace, production line or accessories, you need to choose high-quality and after-sales guaranteed suppliers. HANI TECH has always been adhering to providing such products to every customer who needs it. The data for one of our furnaces is as follows for reference only:

Transformer Apparent Power ( KVA )	3×11000	Single phase
Furnace Type	Low hood submerged arc furnace
Production Varieties	High carbon ferrochrome
Daily Output ( t )	178
Annual Output ( t )	58740	330days
Iron Furnace Times ( times )	8	within24h
Average Amount of Iron ( t/furnace )	22
Maximum Amount of Iron( t/furnace )	22
Electrode Diameter ( mm )	1550	Self-baking electrode
Extreme Circle Diameter ( mm )	3850
Furnace Diameter ( mm )	9500
Furnace Shell Diameter ( mm )	12000	Inner diameter
Secondary Voltage ( v )	154-226-265	3v/37 grade
Rated Current ( A )	84310
Common Secondary Voltage ( v )	226
Common Secondary Current ( A )	84310
Electrode Working Stroke ( mm )	1400
Electrode Maximum Stroke ( mm )	1800
Electrode Maximum Stroke ( mm )	20500

If you have any questions, needs and knowledge sharing supplements, please feel free to contact us.

E-mail: saleswn@hanrm.com (Daisy)