Submerged Arc Furnace Tapping and Pouring Process

author: Alice

2025-05-08

Submerged arc furnaces are smelting furnace used in the smelting industry, also known as electric arc furnace or resistance furnace. It is mainly used to reduce raw materials such as ore, carbonaceous reducing agent and solvent.
SAF is an important equipment for producing ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy in the metallurgical industry, and is an indispensable industrial raw material production equipment in the metallurgical industry.
The submerged arc furnace tapping and pouring process includes steps such as intermittent feeding, maintaining the material surface, opening the iron mouth, and tapping molten iron. After the molten iron flows into containers such as ladles, it will be transported to the mold for pouring and cooling and forming.
Steel tapping equipment usually includes eye-opening machines or arc burners. There are also grate slag pouring system designs for large submerged arc furnaces. The blast furnace hearth pouring construction process is also worth referring to, including preparing castables, cleaning and repairing the hearth, etc.
In short, the submerged arc furnace tapping and pouring process is a delicate and critical link. Let's understand the specific details together.

Steelmaking Process of Submerged Arc Furnaces

1. Intermittent charging & maintenance:

Add reducing agent, flux and raw materials to the smelting furnace to keep the furnace condition stable.
2. Opening the iron mouth:

Control the outflow of molten iron by opening the iron mouth.
3. Molten iron tapping:

Molten iron flows out from the bottom of the SAF furnace and enters the ladle or the iron tapping trough.
4. Adjusting temperature & composition:

Achieve the required molten steel quality by adjusting the conditions in the furnace.
5. Casting preparation:

Check and adjust the molten iron before entering the pouring system.

SAF Pouring Process:

1. Preparatory work:

Prepare molds and pouring equipment, and check the temperature of molten iron.
2. Pouring:

Pour molten iron from the ladle or cast iron furnace into the mold to form a billet or casting.
3. Cooling & solidification:

The molten iron cools and solidifies in the mold.
4. Demolding & post-processing:

After the molding is completed, the casting is removed from the mold for trimming, heat treatment, etc.

The submerged arc furnace tapping and pouring process is the key step from the production to the forming of molten steel in the SAF smelting furnace. Each process is closely linked to ensure the quality of molten steel and finished products. If you have any questions or additions to the above content, please feel free to contact us.

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