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【Case Background】: A large integrated steel manufacturer, a key domestic steel production base with an annual output of 8 million tons, specializes in high-end steel products including automotive steel and construction structural steel. Rising downstream quality standards and tightened environmental policies have exposed persistent operational pain points: insufficient precision in oxygen monitoring, high equipment maintenance costs and excessive production energy consumption, severely limiting product competitiveness and profit margins.

【Core Pain Points】: The traditional oxygen analysis method is difficult to meet the requirements of high-end steel production

The enterprise previously deployed conventional electrochemical oxygen analyzers for critical processes including converter steelmaking and cold rolling annealing, which exhibited multiple drawbacks after long-term operation and hindered production quality improvement and efficiency gains:

1. Measurement lag induces process deviations and restricts product qualification rates

Oxygen levels in molten steel shift instantaneously during converter blowing, while traditional equipment features a response delay of 3–5 seconds, incapable of real-time tracking of oxygen fluctuations.

2. Poor adaptability to harsh environments leads to frequent equipment breakdowns

Steel workshops feature high temperature, heavy dust and strong electromagnetic interference, imposing stringent stability requirements on monitoring equipment.

3. Isolated data silos hinder coordinated management and lack basis for energy consumption control

Oxygen analysis data from individual production processes are stored separately on standalone instruments without real-time upload to the enterprise MES system. Managers cannot comprehensively analyze correlations between full-process oxygen levels and energy usage. Inaccurate oxygen monitoring limited coal gas recovery efficiency to only 78%, resulting in massive energy waste.

【Customized Solution】: The HT-FX760 laser oxygen analyzer enables precise control throughout the entire process

To address the enterprise’s pain points, our team delivered an integrated solution combining HT-FX760 laser oxygen analyzers and a cloud data networking platform. Twelve units of Chengdu HonryTech HT-FX760 analyzers were installed across six critical production links including converters, annealing furnaces and coal gas recovery systems to enable real-time oxygen monitoring, automatic data upload and remote operation & maintenance.

1. Second-level response & precise measurement safeguard product quality

The HT-FX760 explosion-proof laser oxygen analyzer adopts Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology with ultra-fast response to capture instantaneous oxygen fluctuations during converter blowing. It delivers measurement accuracy of ±0.1% and maintains stable oxygen control for shielding atmospheres in annealing furnaces. Operators adjust process parameters via real-time central control data to precisely regulate deoxidizer dosage and drastically improve process stability.

2. Superior environmental adaptability cuts maintenance costs

Equipped with high-temperature resistant probes, high-efficiency dust filtration systems and IP66-rated enclosures, the equipment operates stably under dust concentrations up to 50g/m³. Core optical components are consumable-free with a service life exceeding five years, eliminating frequent sensor replacement required for traditional analyzers. Remote diagnostic functionality enables maintenance staff to troubleshoot faults via back-end platforms without on-site production shutdowns.

3. Networked data collaboration facilitates energy consumption optimization

After integrating HT-FX760 units with the enterprise MES system, full-process oxygen data is synchronized to the production management platform in real time. Trend analysis by management teams revealed that controlling converter oxygen levels within 0.02%–0.03% maximizes coal gas output and purity. Process optimization based on this finding raised coal gas recovery efficiency to 92%, delivering marked improvements in energy utilization.

【Application Performance】: The cost reduction and efficiency improvement efforts have achieved remarkable results, with the equipment investment recovered within half a year.

Since deploying HT-FX760 units in January 2025, the steel enterprise has achieved comprehensive improvements across all production indicators, with breakthroughs in both economic returns and management efficiency. Financial statistics from the company show direct economic benefits exceeding 2 million RMB within six months from three major gains: reduced deoxidizer consumption for converters, higher steel product qualification rates and improved coal gas recovery efficiency, fully recouping the initial equipment investment. Furthermore, stable equipment operation minimizes production fluctuations, driving a 15% year-on-year increase in orders for high-end automotive steel and greatly strengthening market competitiveness.

【Customer Review】: Precision and stability are the core competitiveness of HT-FX760

 “In high-end steel manufacturing, precise oxygen control is the decisive factor for product success. The HT-FX760 laser oxygen analyzer not only resolves slow response and frequent breakdown issues of traditional equipment, but also provides scientific data support for our process optimization via networked data transmission. Over the past six months, product quality has become more consistent while production costs keep declining. This equipment is truly a reliable assistant tailored to steel mill demands.” — Director Wang, Production & Technology Department of the Steel Enterprise

If your enterprise is facing challenges in oxygen content monitoring, please feel free to contact us to obtain a customized solution. Let HT-FX760 made by Chengdu HonryTech safeguard your production safety and enhance your efficiency.