Product Overview
The Steelmaking Oxygen Supply System is a fully engineered industrial gas solution designed to deliver continuous, high-purity, and high-pressure oxygen for modern steel production processes, including Basic Oxygen Furnace (BOF), Electric Arc Furnace (EAF), and secondary metallurgy systems.
In steelmaking, oxygen is a critical process gas used to remove impurities such as carbon (C), silicon (Si), phosphorus (P), and sulfur (S) through high-temperature oxidation reactions. Stable oxygen supply directly determines:
- Steel quality consistency
- Furnace productivity
- Energy consumption efficiency
- Production safety and stability
Our system is designed as a plant-wide oxygen infrastructure solution, not just a gas supply unit, ensuring 24/7 continuous operation in large-scale steel plants.
System Engineering Scope
We provide complete turnkey oxygen supply systems, covering engineering design, equipment manufacturing, installation guidance, and commissioning.
System Integration Scope:
- Air Separation Unit (ASU) / PSA Oxygen Generation System
- Oxygen Compression System (High-pressure delivery)
- Liquid Oxygen (LOX) Storage & Backup System
- Vaporization System (Ambient / Electric)
- Pipeline Distribution Network (Plant-wide oxygen grid)
- Automation & Control System (PLC / DCS)
- Safety & Emergency Shutdown System (ESD)
This integrated design ensures stable oxygen supply even under peak steel production loads.
Oxygen Production Technologies
We design systems based on plant scale, oxygen demand, and investment strategy:
Cryogenic Air Separation Unit (ASU)
Best for large integrated steel mills with continuous high oxygen demand.
- Oxygen purity: up to 99.6%
- Large-scale output: 10,000 – 100,000+ Nm³/h
- Best energy efficiency for long-term operation
- Fully continuous industrial operation
PSA Oxygen Generator System
Suitable for medium and small steel plants.
- Oxygen purity: 90% – 95% (optional enrichment up to 99%)
- Fast start-up (5–10 minutes)
- Modular expansion capability
- Lower initial investment cost
Liquid Oxygen Backup System (LOX)
Ensures emergency and peak-demand oxygen supply.
- High-pressure vaporized oxygen supply
- Redundant safety system for plant continuity
- Used as backup or hybrid configuration
Working Principle in Steelmaking Process
In BOF steelmaking, oxygen is injected through a high-pressure lance into molten iron at supersonic velocity. The oxygen reacts with impurities and generates intense exothermic heat, enabling:
- Rapid decarburization of molten iron
- Removal of impurities (Si, Mn, P, S)
- Temperature increase of molten bath
- Shorter refining cycle time
Our system ensures:
- Stable oxygen pressure at lance inlet
- Precise flow regulation for different steel grades
- Continuous supply during converter cycles
- High response speed during production fluctuations
Engineering Technical Specifications
|
Parameter |
Specification Range |
|
Oxygen Purity |
90% – 99.6% |
|
Capacity Range |
500 – 100,000+ Nm³/h |
|
Delivery Pressure |
0.8 – 3.0 MPa (customizable up to higher) |
|
Pressure Stability |
±0.01 – ±0.02 MPa |
|
Dew Point |
≤ -40°C |
|
Operation Mode |
Continuous 24/7 industrial operation |
|
System Design Life |
≥ 20 years |
|
Automation Level |
Fully PLC / DCS controlled |
|
Redundancy Design |
N+1 / N+2 optional |
Key Engineering Features
High Reliability Design
- Redundant compressor and control systems
- Continuous oxygen supply under peak demand
- Emergency LOX backup integration
Energy Optimization
- Low specific power consumption design
- Heat recovery optimization (ASU systems)
- Intelligent load adjustment
Fully Automated Operation
- PLC / DCS centralized control
- Remote monitoring & diagnostics
- Automatic safety interlock system
Industrial Safety Design
- Oxygen-compatible material selection
- Fire and explosion prevention design
- Pressure relief and emergency shutdown systems
- Pipeline oxygen cleanliness control
System Configuration Options
Small Steel Plant Solution
- PSA oxygen system
- Buffer storage tanks
- Single-stage compression system
Medium Steel Plant Solution
- PSA + LOX hybrid system
- Dual compression units
- Automated control system
Large Integrated Steel Mill Solution
- Cryogenic ASU plant
- High-pressure oxygen pipeline network
- Full redundancy system (N+1 / N+2)
- Centralized oxygen distribution station
Engineering Applications
Our oxygen supply systems are widely used in:
- Basic Oxygen Furnace (BOF) steelmaking
- Electric Arc Furnace (EAF) oxygen enrichment
- Ladle refining furnace (LRF)
- Secondary metallurgy processes
- Continuous casting plants
- Metal cutting and heating systems
- Non-ferrous metal smelting
Project Experience & Global Supply Capability
We provide oxygen supply systems for:
- Integrated steel mills
- Mini-mill steel plants
- EPC industrial gas contractors
- Metallurgical engineering companies
Our systems are designed for global operation environments including:
- Asia
- Middle East
- Africa
- Europe
- South America
Each system is engineered according to local power conditions, climate conditions, and industrial standards.
Why Choose Us
Proven Engineering Capability: We provide complete oxygen system engineering from design to commissioning.
Stable Industrial Performance: Systems are designed for continuous 24/7 steel plant operation.
Lower Oxygen Cost per Ton of Steel: Optimized energy consumption reduces long-term production cost.
Flexible System Design: Custom solutions based on steel plant capacity and expansion plans.
Global Service Support: Technical support, spare parts supply, and remote diagnostics.
Engineering & Compliance Standards
Our systems are designed in compliance with:
ISO 9001 Quality Management System
ASME Pressure Vessel Standards
CE Safety Standards
IEC Electrical Control Standards
Industrial oxygen system safety guidelines
Installation & Commissioning
We provide full lifecycle project execution:
1.Engineering design & process simulation
2.Equipment manufacturing & factory testing (FAT)
3.Modular shipment & logistics planning
4.On-site installation supervision
5.Pipeline system integration
6.System commissioning & performance testing
7.Operator training & handover
Maintenance & Lifecycle Support
Preventive maintenance programs
Spare parts supply chain
Remote monitoring support
System optimization services
Annual performance inspection
FAQ
Q: What oxygen purity is required for steelmaking?
A: Typically 93%–99.6% oxygen purity, depending on furnace type and production process.
Q: What is the oxygen consumption in steelmaking?
A: Average oxygen consumption is approximately 50–60 Nm³ per ton of steel, depending on process efficiency.
Q: Can the system handle fluctuating steel production loads?
A: Yes. Our system is designed with buffer storage and dynamic flow control to handle peak demand variations.
Q: What is the difference between PSA and ASU systems?
A: PSA: Lower investment, suitable for medium/small plants
ASU: High efficiency, ideal for large integrated steel mills
Q: Do you provide backup oxygen systems?
A: Yes. Liquid oxygen (LOX) backup systems are available for emergency supply and peak demand.
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