| Payment Terms | Western Union,T/T,D/P,D/A,L/C |
| Capacity (kVA) | 1250~12000 |
| Furnace Shell Inner Diameter (mm) | 3000~6500 |
| Secondary Voltage (V) | 200-60~336-302-194 |
| Electrode Diameter (mm) | 250~450 |
| Electrode Pitch Circle Diameter (mm) | 800~1450 |
| Applicable Alloys | Mn series, Cr series, Ni series, V series,Rare earth alloys,Silico-calcium |
| Cooling Water Consumption | 60 – 350 m³/h |
| Tapping / Slagging Angle | 45° / 45° |
| Brand Name | Hongxin |
| Place of Origin | China |
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Product Specification
| Payment Terms | Western Union,T/T,D/P,D/A,L/C | Capacity (kVA) | 1250~12000 |
| Furnace Shell Inner Diameter (mm) | 3000~6500 | Secondary Voltage (V) | 200-60~336-302-194 |
| Electrode Diameter (mm) | 250~450 | Electrode Pitch Circle Diameter (mm) | 800~1450 |
| Applicable Alloys | Mn series, Cr series, Ni series, V series,Rare earth alloys,Silico-calcium | Cooling Water Consumption | 60 – 350 m³/h |
| Tapping / Slagging Angle | 45° / 45° | Brand Name | Hongxin |
| Place of Origin | China | ||
| High Light | Ferroalloy Ladle Refining Furnace ,Medium Carbon Ladle Refining Furnace ,Micro Carbon Refining Furnace | ||
Ferroalloy Refining Electric Furnace
Refining furnaces, also known as secondary refining furnaces or ladle refining equipment, are used for deep treatment of molten steel from primary furnaces (EAF, converter, etc.). They aim to improve molten steel purity, adjust composition and temperature, and meet the production requirements of continuous casting and high-quality steel.
The ferroalloy refining electric furnace is the main equipment for producing medium-carbon, low-carbon, and micro-carbon ferroalloys. It performs desiliconization refining on high-silicon and low-carbon ferroalloy intermediate products to obtain ferroalloy products with required compositions. This equipment combines the advantages of electric arc furnaces and submerged arc furnaces, using electric arc heating method, equipped with three electrodes (graphite electrodes or continuous self-baking electrodes). Its capacity is generally expressed by transformer capacity (kVA) rather than tonnage, because the same refining furnace can produce different types and quantities of refined ferroalloys using different raw materials.
Unlike a Submerged Arc Furnace (SAF)—also known as a reduction furnace—which operates with submerged arcs, the Ferroalloy Refining Electric Furnace employs an open arc heating method and is equipped with a control system similar to that of a steelmaking EAF. It combines the flexibility of an EAF with certain economic advantages of an SAF.
Ferroalloy refining electric furnaces can be divided into two types: fixed type and tilting type, with significant differences in structural features and application scope:
| Type | Structural Features | Application Scope |
|---|---|---|
| Fixed Type Refining Furnace | (1) Similar to reduction furnaces (submerged arc furnaces), generally open with high hood (2) Uses suspended continuous self-baking electrodes (3) Material feeding through pipes or manual operation (4) Relatively simple structure, lower investment |
Suitable for producing medium and low carbon ferromanganese or ferrochrome |
| Tilting Type Refining Furnace | (1) Similar to steelmaking electric arc furnaces, mostly with furnace cover (2) Uses cantilever lifting graphite electrodes (3) Feeding through movable roof pipes, charging ladles, or manual feeding through furnace door (4) Can tilt 40°-45° toward tapping spout and 10°-15° toward furnace door (5) Complex structure, higher investment |
Suitable for producing high-quality alloys such as manganese metal, ferrovanadium, and micro-carbon ferrochrome |
The core working principle of a Ferroalloy Refining Electric Furnace is desiliconization refining, also known as the Electro-Silicothermic Process.
I. Raw material preparation: The main raw materials are high-silicon, low-carbon ferroalloy intermediate products (such as silicomanganese and silicon-chromium alloys), combined with fluxes like manganese ore, chromium ore, and lime.
II Arc heating: An arc is generated by three electrodes (graphite or self-baking electrodes) to provide the high temperature required for the desiliconization reaction.
III. Desiliconization reaction: Under conditions of high temperature and high basicity slag (CaO/SiO₂ ratio of 1.6~1.8), the silicon in the intermediate products reacts with the added ores (manganese ore, chromium ore). The silicon is oxidized and enters the slag, thereby reducing the carbon content of the final product.
IV. Tapping: After refining is completed, the molten metal is discharged into a ladle via the tilting device or tapping spout. The molten metal is then cast into ingots to obtain the final product.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
2007
Total Annual:
32000000-35000000
Employee Number:
140~150
Ecer Certification:
Verified Supplier
Xi'an Hongxin Arc Furnace Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, installation, commissioning, and technical services of ferroalloy submerged arc furnace equipment and environmental dust removal equipment. The company was founded in... Xi'an Hongxin Arc Furnace Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, installation, commissioning, and technical services of ferroalloy submerged arc furnace equipment and environmental dust removal equipment. The company was founded in...
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