For the past two decades, Sinomach has pursued a high-quality development path guided by ecological priority, conservation, and green, low-carbon principles. By adhering to this vision, the company has made significant contributions to transforming the idea of "lucid waters and lush mountains" into "gold and silver mountains", balancing environmental protection with economic growth.

Breakthrough innovations in converter steelmaking gas purification

Converter steelmaking gas emissions have long posed a major challenge for the steel industry. The research team at China National Heavy Machinery Research Institute (CHMRI) has achieved a technological breakthrough by developing the world's largest cylindrical electrostatic precipitator for converter steelmaking gas. This innovation integrates "ultra-clean emission, resource recycling, and intelligent carbon reduction".

Complementary technologies, such as the multi-functional intelligent spray cooler, ensure real-time temperature control and guarantee the stable operation of steelmaking systems. Through continuous innovation, the team has established a comprehensive technical process of cooling, dust removal, regulation, and recycling, securing 37 proprietary intellectual property rights. These advances mark a new stage in large-scale converter steelmaking gas treatment, one defined by ultra-clean recycling.

From waste to value through circular symbiosis

The ultra-clean primary converter steelmaking gas emission system developed by CHMRI combines environmental and economic benefits, reshaping the symbiotic relationship between steel production and ecological protection. Acting as a "green lung" for steel plants, the system not only removes dust with high efficiency but also recycles converter gas, serving as an effective tool for carbon reduction.

Its design enables coarse dust to be directly reintroduced into the furnace, reducing intermediate processes and transforming waste into raw materials, which cuts production costs. Higher gas recovery rates further reduce energy consumption and deliver tangible economic gains. In addition, the system is equipped with big data inspection, automated high-voltage power control, and a steelmaking gas condition database, enabling risk prediction and improving operational efficiency. A visualized ash-cleaning system provides real-time monitoring, ensuring safe and intelligent operations that support sustainable development.

Wider application for a greener future

Today, this technology has moved beyond laboratories to large-scale industrial applications, becoming a new standard for the green transformation of the steel industry. The "converter gas full-recovery control model" has been incorporated into industry standards and is widely applied across China, helping the country establish a green industrial chain covering design, manufacturing, installation, and operation.

With its advantages of low emissions, high recovery rates, and strong adaptability, the system has also entered markets in Southeast Asia and Central Asia, advancing the global outreach of China's metallurgical environmental protection technologies. Driven by innovation, Sinomach continues to transform steelmaking emissions into clean air, contributing to blue skies, clear waters, and a sustainable future.