The ‘Kametstal’ plant, part of the “Metinvest” mining and metallurgical group and established at the facilities of the Dniprovsky Metallurgical Plant (Kamenskoye, Dnipropetrovsk Oblast), has reduced electricity consumption in its converter shop by 6 kWh per ton of steel produced, from 27.4 to 21.4 kWh/t, through measures to reduce equipment load during periods between smelting runs.
According to the company, in particular, the downtime for unloading converter exhaust fan rotors has been cut in half. Operations have been organized on a rotational basis for each of the two converters, allowing equipment not involved in the current melt to be shut down and minimizing idle time, thereby ensuring a systematic reduction in electricity consumption.
In addition, electricity consumption by circulation pumps No. 1 and No. 2—which supply water to the converter gas cooling boilers on both operating converters—has been reduced by 1.2 kWh/t. As part of the investment project, frequency converters and modern controllers from Schneider were installed on CN-1 and CN-2. This allows for the automatic unloading of pumping equipment in accordance with the steelmaking process, thereby minimizing its electricity consumption between converter purges.
In the post-converter steel processing department, electricity consumption was reduced by 4.6 kWh/t through the phased implementation of effective engineering solutions to optimize metal heating. At the same time, the algorithm for automatic control of the metal heating process in the “furnace-ladle” unit was refined and improved by selecting the optimal combination of heating stages and heating rates.
Kametsal was established on the basis of PJSC Dniprovsky Coke Chemical Plant (DKCHZ) and PJSC Dniprovsky Metallurgical Plant (DMP). It is part of the Metinvest Group.
Metinvest is a vertically integrated group of mining and metallurgical enterprises. Its facilities are located in Ukraine—in the Donetsk, Luhansk, Zaporizhzhia, and Dnipropetrovsk regions—as well as in European countries. The holding’s main shareholders are the SCM Group (71.24%) and Smart Holding (23.76%). Metinvest Holding LLC is the management company of the Metinvest Group.
