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2025 National Key Technology Seminar on Metallurgical Sintering Green & Low-carbon ▲
The 2025 National Seminar on Key Technologies for Green and Low-Carbon Metallurgical Sintering was recently held in Tianjin. Organized by the Chinese Society for Metals and themed "Low-Cost Intelligent Sintering, High-Efficiency Energy Saving, Pollution Reduction and Carbon Mitigation," the seminar focused on green development through energy saving, pollution reduction, and carbon mitigation in the metallurgical sintering process. The event drew more than 200 participants from government departments, steel enterprises, research institutes, and universities, who exchanged views on cutting-edge technologies and future development directions.
2025 National Key Technology Seminar on Metallurgical Sintering Green & Low-carbon ▲
At the conference, Taiji Environmental Protection delivered a special presentation titled "DS Combustion Purification Heat Recovery System — Technology and Equipment for Synergistic Control of CO, VOCs, and NOx in Industrial Furnace Flue Gas."
The presentation systematically reviewed, from the perspectives of technical background, process design, technical features, and engineering practice, the breakthroughs achieved by the company's self-developed DS Combustion Purification Heat Recovery System in multi-pollutant synergistic control. The presented project cases delivered notable results, with emission indicators well below standards and considerable economic benefits, attracting wide attention and high praise from the leaders, experts, and scholars present, and demonstrating Taiji's solid strength in green and low-carbon metallurgical sintering technology.
Since the first unit was commissioned in 2019, the DS Combustion Purification Heat Recovery System — Technology and Equipment for Synergistic Control of CO, VOCs, and NOx in Industrial Furnace Flue Gas — has been applied in 14 units by September 2025: seven have passed acceptance, one is in trial operation, and six are under construction, all operating stably. The technology is stable, reliable, and highly mature.
Partial track record of DS Combustion-Purification Heat Recovery System projects ▲
The equipment exploits the inherent calorific value of industrial furnace flue gas to achieve synergistic removal of multiple pollutants and meet emission standards, delivering significant energy saving and carbon reduction. Based on the seven units in normal operation, annual natural gas savings amount to 124.78 million Nm³ and carbon reduction to 74,360 t. At an industrial natural gas price of 3.4 yuan/m³, the system saves owners 424 million yuan per year.
