The application of Roots water ring vacuum units in the metallurgical and mechanical industries

Vacuum scenarios in the metallurgical and machinery manufacturing industries are mainly characterized by high temperature, high dust and high load, often with condensable vapor or corrosive gases. The Roots water ring vacuum unit, featuring robust structure, excellent dust resistance, stable pumping performance and oil-free advantage, perfectly adapts to these harsh conditions, ensuring continuous production. It has become the core supporting equipment for vacuum systems in both industries, covering key links like metallurgical purification and precision mechanical processing.

In the metallurgical industry, Roots water ring vacuum units are applied throughout metal smelting, purification and processing, especially core high-vacuum, high-dust processes. In vacuum smelting, molten steel degassing and non-ferrous metal purification, the unit adopts a "water ring pump pre-pumping + Roots pump boosting" mode to quickly extract air, impurities and condensable vapor from furnaces, reducing metal oxidation, improving material purity and mechanical properties, and avoiding casting defects. It is widely used in stainless steel, special steel and non-ferrous metal production. For example, after transforming 4 sets of Roots liquid ring vacuum units numerically, Yunnan Tin Holdings’ Tin Chemical Company reduced energy consumption by 10%, improved drying system reliability and stabilized tin product quality. Its high-temperature and dust-resistant design prevents equipment blockage and extends service life, meeting the industry’s high-load, continuous production and environmental safety requirements. Additionally, it assists in closed transportation of iron concentrate and other raw materials, reducing dust, oxidation and material loss.

In the machinery manufacturing industry, the units are mainly used in high-precision processes such as vacuum welding, vacuum coating and casting degassing. In vacuum welding, they eliminate air in the welding area to prevent joint oxidation, enhancing strength and airtightness for precision machinery and aerospace components. In vacuum coating, they maintain a stable high-vacuum environment to ensure uniform, adherent film layers for hardware and electronic casings. In casting degassing, they remove internal gas to improve compactness, reduce rejection rates and lower costs; their dust and wear resistance avoids equipment failures. They also support vacuum impregnation and heat treatment, helping the industry develop towards precision and high efficiency.