London, April 16, 2019
Primetals Technologies to supply EAF Quantum electric arc furnace and ladle furnace to Wuzhou Yongda
- Marks the tenth EAF Quantum for China
- Electrical energy consumption per metric ton of liquid steel is very low, as are operating costs and CO2 emissions
- Short project duration
Primetals Technologies has received an order from Chinese steelmaker Wuzhou Yongda Special Steel Co., Ltd. (Wuzhou Yongda) to supply an EAF Quantum electric arc furnace and a ladle furnace for a greenfield project in Wuzhou city, in Guangxi Zhuang Autonomous Region. This marks the tenth EAF Quantum for China. The EAF Quantum furnace is designed to handle scrap steel of very varied composition and quality. The electrical energy requirement of the electric arc furnace is extremely low because the scrap is preheated. This reduces both the operating costs and the CO2 emissions. The twin ladle furnace sets the desired steel grades and the correct casting temperature. The new furnaces are scheduled to be commissioned in early 2020.
Wuzhou Yongda is a privately owned steelmaker operating in the Guangxi Zhuang Autonomous Region in Southern China. The company produces steel rods, coiled rebar and coiled wire. The EAF Quantum and the twin ladle furnace are part of a greenfield project for the production of stainless steels. For the new EAF Quantum electric arc furnace and the twin ladle furnace, Primetals Technologies will supply the complete mechanical and electrical process equipment and the automation technology. This includes the automated scrap yard management, the automated charging process, automation of the oxygen injection and sand refilling, as well as the Level 2 automation which makes the plant ready for Industry 4.0. A basic data package for dedusting equipment is also part of the order.
The EAF Quantum developed by Primetals Technologies combines proven elements of shaft furnace technology with an innovative scrap charging process, an efficient preheating system, a new tilting concept for the lower shell, and an optimized tapping system. This all adds up to very short melting cycles. The electricity consumption is considerably lower than that of a conventional electric arc furnace. Together with the lower consumption of electrodes and oxygen, this gives an overall advantage in the specific conversion cost of around 20 percent. In comparison to conventional electric arc furnaces, total CO2 emissions can also be reduced by up to 30 percent per metric ton of crude steel. An integrated dedusting system with modern automatic off gas control fulfills all environmental requirements.
Computer animated 3D image of EAF Quantum electric arc furnace by Primetals Technologies
Primetals Technologies, Limited headquartered in London, United Kingdom is a worldwide leading engineering, plant-building and lifecycle services partner for the metals industry. The company offers a complete technology, product and service portfolio that includes integrated electrics, automation and environmental solutions. This covers every step of the iron and steel production chain, extending from the raw materials to the finished product – in addition to the latest rolling solutions for the nonferrous metals sector. Primetals Technologies is a joint venture of Mitsubishi Heavy Industries (MHI) and Siemens. Mitsubishi-Hitachi Metals Machinery (MHMM) - an MHI consolidated group company with equity participation by Hitachi, Ltd. and the IHI Corporation - holds a 51% stake and Siemens a 49% stake in the joint venture. The company employs around 7,000 employees worldwide. Further information is available on the Internet at www.primetals.com.