7TH EUROPEAN COKE AND IRONMAKING CONGRESS - ECIC 2016

In 1995, Krivorozhstal (now ArcelorMittal Kryvyi Rih) awarded a contract for the supply of a Pulverized Coal Injection System to Hoogovens Technical Services (now Danieli Corus). Due to economic conditions, the project could not be completed at the time. In 2015, the project was revitalized by ArcelorMittal Kryvyi Rih and the system was completed by Danieli Corus. This article discusses the installation, commissioning and ramp-up of the PCI system for Ukraine's largest Blast Furnace (5000 m³). It covers the refurbishment of the equipment, which had been kept in storage locally for nearly 20 years. The process and its changes with the introduction of coal injection is discussed in depth. The article briefly presents the chosen injection technology, which is based on the basic physical principle of equal pressure drop across all injection lines.