Steelmaking furnace (converter, electric furnace, medium frequency / industrial frequency / high frequency furnace)
Category:
Product Introduction
I. Converter (Top-blown / Top and bottom blown)
Core function: Using molten iron as raw material, steel is refined by blowing oxygen to remove carbon and increase temperature. Single furnace capacity: 30-350 tons, smelting cycle: 20-45 minutes.
Type Advantages:
Top-blown converter: Oxygen is blown in from the top lance, easy to operate, suitable for the production of ordinary carbon steel (annual output 1-3 million tons).
Top and bottom blown converter: Top-blown oxygen + bottom-blown inert gas (argon/nitrogen), decarbonization efficiency increased by 15%, steel composition is more uniform, suitable for high value-added steel grades.
Key Parameters:
Lining life: Magnesium carbon brick lining ≥3000 furnaces (bottom-blown converter)
Oxygen supply intensity: 2.5-4.5m³/(t・min)
II. Electric furnace (Electric arc furnace / Induction furnace)
Core function: Using scrap steel as the main raw material, steel is smelted by electric arc heating or electromagnetic induction, low energy consumption, low pollution, suitable for short-process steelmaking.
Type Differences:
Type | Heating method | Capacity | Applicable scenarios |
Electric arc furnace | Electrode arc heating | 50-150 tons | Rebar, high-quality steel production |
Induction furnace | Electromagnetic induction heating | 0.5-50 tons | Refining of precision alloys and special steels |
Technical Highlights:
Electric arc furnace: Ultra-high power (1000-1200kVA/t), smelting time ≤60 minutes
Induction furnace: Electromagnetic stirring for uniform composition, non-metallic inclusions ≤0.005%
III. Open-hearth furnace, medium-frequency furnace, industrial-frequency furnace, high-frequency furnace
Open-hearth furnace: Using coal gas/heavy oil as fuel, capacity 50-300 tons, although gradually being replaced by converters, it is suitable for special alloy smelting (such as high-nickel steel).
Medium-frequency/Industrial-frequency/High-frequency furnace:
Medium-frequency furnace (100-10000Hz): Steel heating speed is fast (5-8℃/min), suitable for small and medium batch casting steel.
Industrial-frequency furnace (50Hz): Simple structure, used for cast iron smelting, capacity 1-20 tons.
High-frequency furnace (>10000Hz): High heating accuracy (±5℃), suitable for precious metals and thin-piece quenching heating.
Equipment Selection Suggestions
Long-process steelmaking: Priority is given to top and bottom blown converters (the cost per ton of steel is 10-15 yuan lower than top-blown converters).
Short-process steelmaking: Electric arc furnace + LF refining furnace combination, suitable for regions rich in scrap steel resources.
Special steel production: Induction furnace + vacuum refining (VD/RH), meeting the standards for aerospace and nuclear power steels.
Online Consultation
Dedicated to provide you with quality products and professional services, please keep the phone open, we will contact you as soon as possible, thank you for your support!
Related Products
Key words:
Contact Information
Yangqu Industrial Park, Shanxi Transformation and Comprehensive Reform Demonstration Zone
Mobile Website