Introduction to Medium‑Low Carbon Ferromanganese Furnace

1. Working Principle

• Raw materials (manganese ore, silicomanganese alloy, high‑carbon ferromanganese, lime) are melted under submerged arc heating.
• Silicon in silicomanganese reduces manganese oxides; oxygen blowing or slag‑metal reactions oxidize excess carbon and impurities (Si, P) into slag.
• Strong electromagnetic stirring ensures uniform composition and efficient refining, yielding low‑carbon, high‑purity FeMn.

2. Main Structure

• Furnace Body: Cylindrical steel shell with high‑purity MgO‑C refractory lining (MgO > 85%) to resist high temperature and slag erosion.
• Electrode System: 3 graphite electrodes (φ400–600 mm) with automatic lifting; powered by a dedicated furnace transformer.
• Tilting Mechanism: Hydraulic tilting (max 45° for tapping, 15° for slagging) with 1°/s tilting speed.
• Power Supply: Rectifier‑transformer unit (3,000–10,000 kVA) providing stable submerged arc heating.
• Auxiliary Systems: Bottom gas stirring, top oxygen blowing, dust collection, and PLC‑based automatic control.

3. Typical Technical Parameters

4. Product Specifications

5. Key Advantages

• High Purity: Low carbon and impurity levels meet strict steelmaking standards.
• High Efficiency: Short smelting cycle, high manganese yield (>90%).
• Low Consumption: Optimized power and raw material usage; advanced furnaces reach ≤600 kWh/t文山壮族苗族自治州人民政府.
• Stable Operation: PLC control ensures consistent quality and low electrode consumption.
• Environmental Friendly: Efficient dust collection and waste heat recovery reduce emissions.

6. Typical Smelting Process

1. Pre‑treatment: Furnace patching, raw material preparation & drying.
2. Charging: Batch feeding of manganese ore, silicomanganese, lime, and high‑carbon FeMn.
3. Melting & Reduction: Submerged arc heating melts charge; silicon reduces MnO.
4. Decarburization & Refining: Oxygen blowing and slag adjustment remove C, Si, P.
5. Tapping & Casting: Tilt furnace to tap; cast into ingots or granules.

7. Application

• Steelmaking: Additive for HSLA steel, stainless steel, bearing steel, and die steel to improve strength, toughness, and corrosion resistance.
• Foundry: Enhances hardness and wear resistance in cast iron.

  Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. is a high-tech enterprise specialized in the research, design, and manufacturing of various industrial furnaces, including AC and DC steelmaking electric arc furnaces, ladle refining furnaces, ferroalloy ore thermal furnaces, ferroalloy refining furnaces, electric slag remelting furnaces, non-standard metallurgical equipment, heat treatment equipment, and various related environmental protection dust removal equipment. The company's product design and manufacturing capabilities have reached 100 tons for electric arc furnaces, 160 tons for ladle refining furnaces, and a capacity range of 3600KVA to 35000KVA for ore thermal furnaces. In accordance with national industrial policies, we have designed high and low voltage compensation systems, dust removal systems, ferroalloy DC furnaces, and new energy equipment suitable for the actual operation of the equipment. For inquiries, please contact Mr. Du at 13991381852 or Mr. Chen

13709182307.