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Medium‑Low Carbon Ferromanganese Furnace---Large equipment

  • Medium‑Low Carbon Ferromanganese Furnace---Large equipment
Place of Origin China
Brand Name Shaanxi Chengda
Certification ISO 9001
Model Number Negotiate based on equipment processing capacity
Minimum Order Quantity 1 unit
Price The price will be negotiated based on the technical requirements and supply scope of Party A
Packaging Details Discuss according to the specific requirements of Party A
Delivery Time 2 months
Supply Ability Complete production supply chain, supply on time, and meet quality standards
Product Details
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medium-low carbon ferromanganese furnace

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ferroalloy refining large equipment

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ferromanganese furnace with warranty
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Product Description

Introduction to Medium‑Low Carbon Ferromanganese Furnace


Medium‑low carbon ferromanganese (FeMn) furnaces are specialized submerged‑arc refining furnaces designed to produce medium‑carbon ferromanganese (MC‑FeMn, C ≤ 2.0%) and low‑carbon ferromanganese (LC‑FeMn, C ≤ 0.7%). They are core equipment for high‑purity ferroalloy production, widely used in high‑grade steelmaking (e.g., HSLA steel, stainless steel) to provide deoxidation, desulfurization, and alloying with controlled carbon.


1. Working Principle


The furnace operates on the silicothermic reduction & decarburization refining 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

Parameter Common Range Typical 5,000 kVA Furnace
Transformer Capacity 3,000–10,000 kVA 5,000 kVA
Furnace Shell ID φ5,000–6,500 mm φ6,500 mm
Furnace Shell Height 3,600–3,800 mm 3,780 mm
Graphite Electrode Diameter φ400–600 mm φ500 mm
Max Tilting Angle 45° (tap) / 15° (slag) 45° / 15°
Tilting Speed 0.8–1.2°/s 1°/s
Smelting Cycle 90–120 min/heat ~100 min
Output per Heat 3–5 t ~3.7 t
Daily Output 40–60 t ~52 t
Annual Capacity 12,000–25,000 t ~24,900 
Unit Power Consumption 550–1,400 kWh/t 570–670 kWh/t
Raw Material Consumption 2.4–3.2 t/t product ~3.0 t/t
Refining Temperature 1,600–1,800°C 1,700°C


4. Product Specifications

Grade Mn (%) C (%) Si (%) P (%) S (%)
Medium‑Carbon FeMn 75–80 ≤2.0 ≤2.0 ≤0.12 ≤0.02
Low‑Carbon FeMn 80–85 ≤0.7 ≤1.5 ≤0.10 ≤0.02


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.
Tags:

Smelting Furnace

Nickel Iron Furnaces

Electric Furnaces