Low carbon manganese iron furnace for Ferroalloy refining equipment

1.Basic principles
Refining principle: While decarbonizing, the high temperature and specific slag composition in the furnace are utilized to oxidize other impurities (such as silicon, phosphorus, etc.) in the manganese iron and enter the slag, achieving refining of the manganese iron and improving product quality.

2.Structural composition
Furnace body: Generally constructed with high-quality refractory materials to withstand high temperatures and erosion from slag. The furnace body is usually circular or elliptical, with different capacity specifications, commonly ranging from a few tons to tens of tons. The furnace shell is generally made of steel plate, which plays a role in protecting the furnace lining and supporting it.
Electrode system: Usually graphite electrodes or self baking electrodes are used. The electrode is connected to the power source through a conductive device, which introduces electrical energy into the furnace and generates an arc between the electrode and the furnace charge, providing the high temperature required for smelting. The number, diameter, and arrangement of electrodes depend on the capacity and process requirements of the electric furnace, and commonly there are three electrodes arranged in a triangular shape.
Furnace top device: including feeding port, exhaust port, observation hole, etc. The feeding port is used to add furnace materials into the furnace, the exhaust port is used to discharge the waste gas generated during the smelting process, and the observation hole is convenient for operators to observe the reaction situation inside the furnace. The furnace top is also equipped with a sealing device to ensure stable atmosphere and pressure inside the furnace.
Iron outlet and slag outlet: The iron outlet is located on one side of the bottom of the furnace and is used to discharge the smelted medium low carbon manganese iron alloy liquid. The slag outlet is used to discharge the slag generated during the smelting process, usually located at a higher position in the furnace body, in order to discharge most of the slag before tapping.
Electrical system: composed of transformers, control cabinets, conductive busbars, etc. The transformer converts high-voltage electrical energy into low-voltage high current suitable for the operation of the electric furnace. The control cabinet is used to control the input power, voltage, current and other parameters of the electric furnace, and adjust them accurately according to the needs of the smelting process to ensure the stable operation of the electric furnace.

3. Process design features:

(1) Meet the requirements of hot charging and hot mixing production process

(2) Meet the production needs of medium carbon ferromanganese to low and micro carbon ferromanganese and metallic manganese products

(3) Meet the needs of matching with the existing silicon manganese alloy electric furnace

(4) Meet the needs of safety production

(5) The demand for increasing furnace age and reducing refractory material consumption

(6) The demand for reducing product power consumption and increasing recycling rate

(7) The demand for smooth process layout and improved work efficiency

(8) The demand for easy operation, improved labor efficiency, and reduced labor intensity

(9) Reliable operation of equipment reduces the need for investment

4.Shake bag parameters:

5. Advantages and Applications
Advantages: Compared with the traditional blast furnace method for producing low-carbon manganese iron, low-carbon manganese iron furnaces have the advantages of high production flexibility, stable product quality, low energy consumption, and low environmental pollution. It can quickly adjust the carbon content and other components of products according to market demand, producing different specifications of medium and low carbon manganese iron products to meet the needs of different users.
Application: Low carbon ferromanganese is an important ferroalloy product widely used in the steel industry. In the steelmaking process, it serves as a deoxidizer and alloy additive, which can improve the strength, toughness, wear resistance, and corrosion resistance of steel. It is commonly used in the production of high-quality carbon steel, alloy steel, stainless steel and other steel varieties. In addition, medium and low carbon ferromanganese has certain applications in fields such as casting and non-ferrous metal smelting.