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Medium‑Low Carbon Ferromanganese Furnace---Large equipment
| Herkunftsort | China |
|---|---|
| Markenname | Shaanxi Chengda |
| Zertifizierung | ISO 9001 |
| Modellnummer | Verhandeln Sie basierend auf der Verarbeitungskapazität der Ausrüstung |
| Min Bestellmenge | 1 Einheit |
| Preis | The price will be negotiated based on the technical requirements and supply scope of Party A |
| Verpackung Informationen | Besprechen Sie die spezifischen Anforderungen von Partei A |
| Lieferzeit | 2 Monate |
| Versorgungsmaterial-Fähigkeit | Vervollständigen Sie die Produktionslieferkette, liefern Sie pünktlich und erfüllen Sie Qualitätssta |
Produktdetails
| Hervorheben | medium-low carbon ferromanganese furnace,ferroalloy refining large equipment,ferromanganese furnace with warranty |
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|---|---|---|---|
Produkt-Beschreibung
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
- Pre‑treatment: Furnace patching, raw material preparation & drying.
- Charging: Batch feeding of manganese ore, silicomanganese, lime, and high‑carbon FeMn.
- Melting & Reduction: Submerged arc heating melts charge; silicon reduces MnO.
- Decarburization & Refining: Oxygen blowing and slag adjustment remove C, Si, P.
- 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.
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