- Casting-rolling plant produces 1.7 million metric tons of high-quality, ultra-thin hot strip
- Arvedi ESP Plant was adapted to changes in crude steel production and space availability during the ongoing project
- Plant features Through-Process Optimization solution (TPO) and Industry 4.0
At the Chinese steel producer Rizhao Steel Co., Ltd. (Rizhao Steel), the fourth Arvedi ESP (Endless Strip Production) plant supplied by Primetals Technologies was started up in April 2018. The casting and rolling plant will produce 1.7 million metric tons of high-quality, ultra-thin hot strip with thicknesses of down to 0.8 millimeters and widths of up to 1,300 millimeters. The product portfolio ranges from carbon steel to HSLA (high-strength low alloyed) grades . To cater to capacity shifts of Rizhao´s crude steel production and a change in plant setup, the Arvedi ESP plant was reengineered for the use of larger ladles as well as for decreased space availability during the ongoing project. The plant features a Through-Process Optimization solution (TPO) and Industry 4.0. The order was placed with Primetals Technologies in 2014.
Rizhao Steel Co., Ltd. (Rizhao Steel), a company of the Rizhao Steel Holding Group, is located around 30 kilometers outside of the port of Rizhao in the south of Shandong province. The company has a production capacity of approximately 15 million metric tons of crude steel. Rizhao Steel's product portfolio includes hot-rolled coils, wire, rods and small-dimensioned I-beams, which are mainly sold to Chinese customers. The new Arvedi ESP plants enables Rizhao Steel to further expand its production capacities for high-grade thin strip products and production of cold-rolled substitutes.
Primetals Technologies was responsible for the engineering of the Arvedi ESP plant and supplied the mechanical equipment, the media systems, technology packages and the automation technology. The casting and rolling lines are controlled with the aid of consistent and integrated basic (level 1) and process automation (level 2). This ensures a finely coordinated interaction of the casting and rolling process. The installed Through-Process Optimization solution (TPO) compromises of the intelligent Through-Process Quality Control System (TPQC), a newly developed Industry 4.0 IT system and Through-Process Know-How (TPKH) modules. The TPO system will continuously monitor and manage product quality by recording all process parameters as well as measured production and product data, starting from the liquid phase up to the final processing lines.
The Arvedi ESP system produces hot strip directly from liquid steel in a continuous and uninterrupted production process in a linked casting and rolling plant. In this type of plant the power consumption and the related costs are up to 45 percent less than in the case of a conventional plant with separate casting and rolling processes. It also means a significant reduction of CO2 emissions. Furthermore, with a length of only 155 meters, the dimensions of these plants are clearly more compact than those of conventional casting and rolling plants.
Shaking hands in front of the first coil produced on the fourth Arvedi ESP line at Rizhao Steel: Yu Yao, Plant Manager ESP lines, Rizhao Steel; Harald Monn-Weiss, Site Manager Primetals Technologies; Xie Jibiao, Overall Plant Manager ESP Melt shop, Rizhao Steel (from left to right).
プライメタルズ テクノロジーズ （Primetals Technologies）, は本社を英国、ロンドンに置き、金属鉄鋼産業におけるエンジニアリング、プラント建設、およびライフサイクルサービスの提供を行うパイオニアかつ世界的リーダーです。 当社は電機、オートメーション、デジタライゼーション、及び環境の総合ソリューションを含めた技術、製品、サービスの一式を提供しており、 原材料から完成品まで鉄鋼のあらゆる分野を網羅するだけでなく、非鉄分野でも最新の圧延ソリューションをお届けします。 当社は三菱重工グループ100％出資によるグループ会社で、従業員数は全世界で約7,000人です。 詳しくは、下記URLより当社公式ウェブサイトをご覧ください。www.primetals.com.
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