Iron and Steel

Iron and Steel

PIONEER has accumulated extensive experience in VPSA oxygen production technology over the course of 18 years and has served more than 30 large iron and steel companies, including overseas iron and steel companies such as India's JSW and The Philippines Meilian Steel. PIONEER provides advanced gas separation technologies for iron and steel companies to help them save energy and improve efficiency and has an extremely high level of brand awareness in the Chinese iron and steel industry.

1. Oxygen-enriched combustion in ironmaking blast furnaces

Oxygen-enriched combustion in ironmaking blast furnaces: PSA oxygen production technology can provide stable and high quality oxygen products for blast furnace ironmaking. In the 21st century, with the development and progress of low-energy BF special oxygen generation technologies, such as PSA oxygen generation technology and oxygen enrichment before the blower, China's BF oxygen enrichment and PCI technology has once again made a leap-forward progress and ranked at the world’s leading level.

There are two methods of BF oxygen enrichment: oxygen enriched before and after the blower.

The common oxygen enrichment after the blower is an oxygen enrichment method that depressurizes the high-pressure high-purity oxygen at the air separation outlet, sends it to the back pipe of the blast furnace blower, mixes it with the air, and then blows it to the blast furnace, causing great energy waste. The oxygen enrichment before the blower refers to an oxygen-enriched blast method in which low-pressure oxygen is directly mixed into the suction side of the blast furnace blower, so as to increase the oxygen content in the blast. With reference to relevant information, the power consumption of BF oxygen enrichment before the blower is only 60% of that of BF oxygen enrichment after the blower.

If the concentration of oxygen entering the BF blower is controlled within a reasonable range, the BF blower does not need to be reformed, and oxygen enrichment before the blower can be realized only by adding or regulating pipelines, valves and airflow distributors. At present, many iron and steel plants have adopted or transformed into the method of oxygen enrichment before the blower, which has brought considerable economic benefits.

Case

The ZO-15000/80 VPSA oxygen generation project, which was built by PIONEER for a Hebei iron and steel company in 2016, was successfully put into operation at one time. The project adopts the method of oxygen enrichment before the blower with an oxygen enrichment rate of 3-5%, the molten iron production is increased by 10-20%, coal ratio is increased by about 35 kg/t·iron, and oxygen comprehensive production cost is lower than 0.3 yuan /Nm3. Based on the price difference between coke and coal as well as the rate of production growth, the annual economic benefits can exceed 30 million yuan.

Iron and Steel

Successful Case

India JSW Group 15000/92 Oxygen Project: JSW and PIONEER signed a contract on cooperation in the 15,000...

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Congo 1900/93 VPSA oxygen generating equipment: The VPSA oxygen generating equipment (1900 Nm3/h, purity 93%...

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Thailand's DOUBLE A 1100/93 VPSA oxygen generating equipment: The VPSA oxygen generating equipment (110...

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Bahrain 4500/93 VPSA oxygen generating equipment: The VPSA oxygen generating equipment (4500 Nm3/h, purity 93...

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