Submerged Arc Furnace

Description

Submerged arc furnace — also known as electric arc furnace or electric resistance furnace.

It is an industrial electric furnace with huge power consumption.

Mainly consists of 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, submerged arc furnace Transformers and various electrical equipment.

SAF is mainly used for reducing smelting ores, carbonaceous reducing agents, solvents, etc.

It is mainly suitable for the production of ferromanganese, ferrochromium, silicon-manganese alloy, ferronickel and other ferrous metal alloys.

It is an important smelting furnace for the production of industrial raw materials and calcium carbide and other chemical raw materials in the metallurgical industry.

Working Features

The submerged arc furnace is made of carbon or magnesium refractory material as furnace lining and self-baking electrodes.

Electrodes are inserted into the furnace material for submerged arc operation, which uses arc energy and current to pass through the material and 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.

Characteristics

According to the structural characteristics and working characteristics of the submerged arc furnace, 70% of the system reactance of the SAF is generated by the short grid system, and the short grid is a system with high current operation, and the maximum current can reach tens of thousands of amperes.

The performance of the submerged arc furnace determines the performance of the submerged arc furnace.

It is for this reason that the natural power factor of the submerged arc furnace is difficult to reach above 0.85.

The natural power factor of most furnaces is between 0.7 and 0.8, The lower power factor not only reduces the efficiency of the transformer, consumes a lot of wasted power, but also imposes additional power fines by the power department。

At the same time, due to the manual control of the electrodes and the stacking process, the power imbalance between the three phases increases, and the maximum imbalance The smelting efficiency can reach more than 20%, which leads to low smelting efficiency and higher electricity costs.

Therefore, improving the power factor of the short grid and reducing the imbalance of the grid become an effective means to reduce energy consumption and improve smelting efficiency.

If appropriate measures are taken to improve the power factor of the short network, the following effects can be achieved:

(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.

SAF Type & Service

HANI Metallurgy is a SAF China manufacturer with rich experience in production and export.

We can design and manufacture furnaces with the appropriate power according to the specific needs of our customers.

Types of Furnaces

SAF is mainly used for reduction of raw materials such as smelting ores, carbonaceous reducing agents and solvents.

It mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicomanganese alloy and other ferroalloys.

The following models are in high demand by users.

16500KVA industrial silicon furnace,

12500KVA silicon-aluminum furnace,

16500KVA silicomanganese furnace,

16500KVA ferro-nickel furnace,

33000KVA ferrosilicon furnace,

33000KVA ferrosilicon furnace,

5500KVA ferrochrome furnace,

8000KVA industrial silicon furnace

and other customized furnaces according to customer requirements.

Services

HANI Metallurgy can provide “turnkey” services for technical solutions, production line design, plant layout, equipment manufacturing, installation and commissioning of relevant projects.

We can also design, manufacture, modify and upgrade your existing production equipment according to your requirements.

We will send our engineers to your factory to install and commission the machines and provide reliable after-sales service.

Our machines are easy to operate and maintain.

Production capacity can be adjusted according to customer requirements.

We supply complete plants as well as individual plants such as furnace shells, furnace covers, furnace liners, short grids, water cooling systems, fume extraction systems, dust removal systems, electrode shells, electrode press and lift systems, loading and unloading systems, grippers, burn-throughs, hydraulic systems, transformers for mineral-heating furnaces and various auxiliary equipment and accessories.