Application solution for The vertical long axis semi submersible turbine pump in metallurgical and steel industry

The vertical long shaft semi submersible turbine pump is the preferred conveying equipment for harsh working conditions in the metallurgical and steel industry. Through material optimization and structural customization, it can efficiently solve the pain points of conveying impurities and high-temperature media. The vertical long shaft semi submersible turbine pump has a wide range of application scenarios in the smelting and steel industries, and there have been many typical cases of successful implementation.
Core application scenarios
Production process water circulation system: responsible for the circulation, suction, lifting, and pressurization of cooling water and flushing water in production processes such as steel ingot continuous casting, steel ingot hot rolling, and thin plate hot rolling, to ensure the continuous and stable operation of the production process.
Special medium transportation: Transporting high-temperature, corrosive liquids such as iron oxide scale water, which have high temperatures and corrosive components, and require high temperature and corrosion resistance performance for vertical long shaft pumps.
High lift water delivery operation: meets the high lift water delivery needs in steel production, and supports the efficient operation of large-scale water circulation systems with high efficiency and reliability.
Targeted solutions
Wear resistant material upgrade: The core overcurrent components (impeller, guide vane body) are coated with wear-resistant materials and made of stainless steel/super duplex steel. The wear resistance is optimized for hard iron oxide particles, which increases the lifespan by 2-3 times compared to ordinary cast iron materials and reduces maintenance and replacement costs.
Structural adaptation to special working conditions: using balance holes to adjust axial force, installing replaceable sealing rings on the front and rear cover plates of the impeller to protect the core components. After wear, only the sealing rings need to be replaced, without the need to replace the impeller as a whole; The guide bearing is equipped with an external cooling and lubricating water system, protective tube, and self closing seal. After shutdown, it can prevent particle contaminated water from entering the guide bearing and avoid shaft wear.
Efficiency optimization design: The vertical long shaft semi submersible turbine pump adopts hydraulic software to optimize the hydraulic model, adapt to the demand of high flow transportation, and operate more smoothly and efficiently. Compared with traditional pumps, it can reduce operating energy consumption by 10% -15% and save a lot of electricity costs in long-term operation.
Typical application cases
Large scale steel plant circulating water system: A multi million ton steel enterprise has selected multiple vertical long shaft semi submersible turbine pumps with high flow rate and high head in its hot rolling workshop circulating water system. The single pump flow rate can reach 1200-2000m ³/h and the head is 120-180m. The core components are made of super duplex steel material and equipped with wear-resistant coating. The guide bearings are externally cooled and lubricated with water, effectively resisting the wear and corrosion of oxidized iron scale water, ensuring the stable operation of the circulating water system, and saving a lot of fresh water resources every year.
Process water station for small and medium-sized steel enterprises: A process water station for a certain small and medium-sized steel enterprise uses a vertical long shaft semi submersible turbine pump that is suitable for medium flow demand, with a flow coverage of 200-500m ³/h and a head of 30-80m. It is equipped with an intelligent control cabinet that can automatically start and stop according to the water level of the process water station, and monitor the operating temperature and vibration data of the pump in real time, achieving efficient unmanned operation and maintenance and reducing labor costs.