The aim of the modernization is to increase the production capacity of billets with cross sections of 130 and 150 mm from 0.95 to 1.5 million t/a. Additionally, Abinsk will be able to produce more quality steel grades, such as high carbon steel for wire and spring steel. The new technology will not only increase the availability of the steel works, but also decrease maintenance costs. Conversion costs will also be substantially lowered. The energy requirement of the electric arc furnace will be reduced from 410 to 370 kWh/t.
Abinsk Electric Steel Works is one of Russia's leading producers of reinforcing bars and other long products. The company runs an electrical steel works and two rolling mills in Rajon Abinsk, located in the South Russian region of Krasnodar. Primetals Technologies is responsible for the basic and detail engineering, the production and supply of the new equipment, and will supervise their construction and commissioning. The electrical steel works will be equipped with new cross-plant process automation.
The modernization also involves installing a PLC-Based electrode control system and a new oxygen injection system from Primetals for the electric arc furnace in the steel works. In addition, high-current cables and the complete high-current busbar system after the furnace transformer will be replaced.
The roof panels and elbow will be re-engineered, and a new furnace pressure control system with Direct Evacuation Damper after the hot gas duct of the furnace primary suction line will installed. The main hydraulic system of the electric arc furnace will be modified to improve furnace movements and minimize the power off times, approximately by 20 seconds per each scrap charging. In addition to the electric arc furnace also the ladle furnace will be modernized and will be equipped with a new, four strand wire feed and a new lime injection system.
For the modernization of the 6-strand continuous billet caster, Primetals Technologies will supply stopper casting equipment, consisting of stopper mechanisms with electromechanical actuators, shroud manipulators, emergency cut-off gates and automatic mold powder feeders. The maximum casting speed will be 5 m/min for the 130 x 130 mm casting format. New DiaMold tube molds, DynaFlex mold oscillators, electromagnetic stirrers, roller blocks and secondary cooling spray headers will be installed for casting with high casting speed. A new billet marking machine will be installed in the run-out area of the plant. The existing turnover cooling bed will be modernized, new hydraulic cylinders will be installed, and the cooling bed hydraulic system will be modified.
(Source: Primetals Technologies Ltd.)