Oxygen Plant in Steel Industry

Oxygen Plant in Steel Industry is specially designed for the steel industry. It uses advanced pressure swing adsorption (PSA) or cryogenic air separation technology to efficiently produce high-purity oxygen (purity ≥ 99.5%) to meet the oxygen needs of key processes such as steel smelting, continuous casting, and cutting. With stable oxygen supply and energy saving and consumption reduction as the core, this system helps steel companies improve production efficiency and reduce operating costs while meeting environmental protection standards.

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Description

Technical Parameters

Core Advantages

Efficient oxygen supply, improve smelting efficiency
High-purity oxygen (99.5%~99.8%) greatly improves the smelting efficiency of converter (BOF) and electric arc furnace (EAF), shortens the smelting cycle, and reduces fuel consumption.
Stable oxygen supply pressure (adjustable from 0.5 to 3.0 MPa) meets diversified needs such as oxygen-enriched blasting and molten steel decarbonization.
Energy saving and consumption reduction, reduce operating costs
Adopting intelligent frequency conversion control and heat recovery technology, energy consumption is reduced by 15%~30% compared with traditional oxygen production equipment.
Modular design supports on-demand expansion to avoid resource waste.

Safe and reliable, intelligent operation and maintenance
Equipped with multiple safety protection systems (oxygen concentration monitoring, explosion-proof pressure relief, automatic shutdown), in line with OSHA and ISO safety standards.
Internet of Things (IoT) remote monitoring, real-time analysis of operating data, early warning of potential failures, and reduction of shutdown risks.

Environmental compliance, help green production
Reduce nitrogen oxide (NOx) emissions and support steel companies to meet carbon reduction targets.
Low noise design (≤75 dB), meeting the requirements of industrial environments.

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Core application of oxygen in steel production

Driving green transformation

Oxygen is deeply involved in steel converter steelmaking and arc furnace combustion. Accurately controlling oxygen utilization can reduce carbon emissions from steelmaking by 5%-8%; however, the NOx emission problem caused by oxygen-enriched combustion has become an environmental challenge in the application of technology.

Safety and compliance management

80% of oxygen leakage accidents are caused by valve and pipeline corrosion, and safety hazards should not be underestimated. Explosion-proof oxygen sound and light alarm devices are accelerating their popularization. From 2020 to 2023, their popularity has jumped from 45% to 68%, safeguarding production safety.

Supply chain and economic model

Steel companies can save 60-80 yuan per ton of steel by operating their own oxygen plants, but self-built oxygen plants with a production capacity of 100,000 Nm³/h require an investment of about 300 million yuan. Companies need to carefully weigh the high initial capital expenditure and long-term cost advantages.

Technological innovation

Although the cost of producing green oxygen by photovoltaic electrolysis of water is high, it has opened up a key path for zero-carbon steelmaking in the steel industry; the China Iron and Steel Association has clearly required that the comprehensive energy consumption of oxygen must be reduced to ≤0.38kWh/Nm³ by 2025 to promote the green upgrade of the industry.

Parameter

No.	Models	Capacity (Nm3/hr)	Purity	Power consumption of 1Nm3 oxygen produced (kw/h)	Number of bottles flled in 12 hours(pcs)	Operator needed
1	NTK95-5P	5	95%+-1%	3.54	10	2
2	NTK95-10P	10	95%+-1%	2.52	20	2
3	NTK95-15P	15	95%+-1%	2.31	30	2
4	NTK95-20P	20	95%+-1%	2.13	40	2
5	NTK95-25P	25	95%+-1%	2.01	50	2
6	NTK95-30P	30	95%+-1%	2.09	60	2
7	NTK95-40P	40	95%+-1%	1.81	80	2
8	NTK95-50P	50	95%+-1%	1.94	100	2
9	NTK95-60P	60	95%+-1%	1.62	120	2
10	NTK95-80P	80	95%+-1%	1.92	160	2
11	NTK95-100P	100	95%+-1%	1.83	200	2

FAQ

1.Can the oxygen purity supplied by the oxygen plant meet the requirements of the steelmaking process? What impact does different purity have on steelmaking?
Our oxygen plant can provide oxygen with different purities ranging from 99.2% to 99.99%. Generally, converter steelmaking requires a purity of more than 99.5%. High-purity oxygen can accelerate the decarburization reaction and improve smelting efficiency; electric arc furnace steelmaking requires slightly lower purity, but insufficient purity will lead to longer smelting time and increased energy consumption. Oxygen of appropriate purity can be customized according to your steelmaking process.

2.How does the oxygen plant using PSA/VPSA technology have advantages in energy consumption and cost compared to cryogenic supply?
PSA/VPSA technology saves 20%-30% energy compared to traditional cryogenics. In terms of cost, for small and medium-sized steel mills with intermittent gas demand, PSA/VPSA technology has lower initial investment, and operating costs are also reduced due to reduced energy consumption; while cryogenics is suitable for large-scale continuous gas supply, and the unit cost is lower in the long run. You can choose the appropriate supply method according to your own gas consumption scale and characteristics.

3.What measures does the oxygen plant have in safety management? Can it ensure the safety of oxygen storage and transportation?
We strictly follow safety standards such as GB 16912-2008. In the storage stage, the distance between the oxygen cylinder storage area and the combustibles is kept ≥10 meters, and dual redundant oxygen content detectors are installed; professional liquid oxygen tankers are used for transportation, and the vehicles are equipped with complete safety protection devices and emergency treatment equipment. At the same time, we regularly inspect and maintain valves and pipelines to prevent leakage due to corrosion and reduce safety risks.

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