In the global industrial development process, deep ASU technology has become an indispensable core support for modern heavy industries, especially the steel manufacturing industry. In the steel production process, multiple key links such as oxygen-enriched blast furnace blowing, converter steelmaking, continuous casting cutting, and metal welding all rely on air separation equipment to continuously and stably provide a large amount of high-purity oxygen, nitrogen, and argon.
A large steel plant in Chile is facing the urgent need to enhance the efficiency of electric arc furnace steelmaking and reduce the overall energy consumption. Hangzhou Nuzhuo has specially designed a set of medium-sized deep cryogenic air separation equipment for it, focusing on optimizing the oxygen-nitrogen production process and the energy recovery system. This project was put into operation in 2021 and has not only stably supplied 99.6% high-purity oxygen, meeting the requirements for intensified smelting, but also reduced the per-ton steel energy consumption by approximately 8% for the steel plant. At the same time, its efficient nitrogen production system provides a reliable protective gas source for the production line. The equipment has undergone tests under the special climatic conditions in the area near the Andes Mountains and has been operating stably continuously to date, receiving high praise from the customer and becoming a model of Nuzhuo’s technical services in the South American steel market. Nuzhuo has adopted advanced technologies such as molecular sieve purification, efficient booster turbine expansion machines, and full distillation hydrogen-free argon production to ensure low energy consumption, high purity, and high output of gas supply under extreme conditions. The equipment control system is highly automated and can achieve remote monitoring and intelligent regulation, significantly improving the stability and safety of the steel plant’s production process. Especially in areas with frequent grid fluctuations or harsh environmental conditions, it has demonstrated significant advantages.
As the global steel industry undergoes a transition towards green, efficient and intelligent development, higher requirements have been placed on the energy consumption, reliability and gas supply flexibility of air separation equipment. Nuzhuo as an innovator in the field of cryogenic air separation technology, is committed to providing customized and highly efficient solutions for global customers. Its equipment has been operating stably in multiple countries and regions around the world.
For any oxygen/nitrogen/Argon needs, please reach out to us :
Lyan.Ji Tel./Whatsapp/Wechat:+86-18069835230
Email :lyan.ji@hznuzhuo.com
Post time: Jan-23-2026
Phone:
0086-15531448603
E-mail:elena@hznuzhuo.com







