After the successful performance test, on June 5, 2012, also the Final Acceptance Certificate has been signed by Baosteel. "As opposed to the conventional blast-furnace route, the Corex production costs are substantially lower," Dieter Siuka said about the performance test. Mr. Siuka is responsible worldwide for iron production at Siemens Metals Technologies.
Siemens Corex C-3000 plants at Baosteel, Shanghai, China
Less expensive and locally available raw materials yield the same quality of hot metal as higher-quality imports. Siuka expects that the Corex route will now be further rolled out as an alternative to conventional blast furnace production, especially in markets with increasing hot-metal production.
Following startup of the Corex plant in March 2011, Baosteel and Siemens have been working together over the past few months to optimize operation of the plant, which is designed for the production of 1.5 million tons of hot metal per year. "All performance parameters stipulated in the contract were achieved or exceeded," Siuka reported. The performance test was completed in a total of 170 hours. The guaranteed production rate of 175 tons of hot metal per hour was achieved in addition to a reduction in the specific fuel rate from 950 kg to 870 kg per ton of hot metal based on local raw materials. Uniformly high quality of the hot metal was achieved in spite of the heavy fluctuation in the quality of the raw materials. "The quality of the hot metal produced in the Corex plant is comparable to that found in the product of conventional blast furnaces," Siuka emphasized.
In light of the continuing depletion and the high cost of high-quality raw materials, and because of the environmental restrictions placed on blast furnace operation in numerous countries, the Corex-C-3000 route offers an environmentally compatible and economically efficient alternative that conserves resources. The successful performance test is a "further milestone in commercialization of the Corex production technology," Siuka emphasized, who expects demand "particularly in markets with increasing hot-metal production levels and where raw materials are readily available." Current plans at Baosteel call for continued operation of the Corex plant at high capacity.
The conventional blast furnace route consists of the sintering plant, coke oven plant and the blast furnace and produces hot metal from agglomerated iron ore (sinter) with the help of coke. In addition to high investment costs, the disadvantages of this route include the comparatively high emissions, for example, of sulfur oxides (SOx), nitrous oxides (NOx), dust and phenols. Liquid hot metal produced in the Corex route is melted directly from pellets and lump ore, and non-coking coal is the primary source of energy. In comparison with the conventional route, the production costs and emissions of the Corex route are lower because the coking and sintering plants (systems with the highest emissions) are not required. The Corex gas can also be used as an energy source to generate electricity or as a reducing gas in a direct-reduction plant.
Further information about solutions for steel works, rolling mills and processing lines is available at http://www.siemens.com/metals
The Siemens Industry Sector (Erlangen, Germany) is the world's leading supplier of innovative and environmentally friendly products and solutions for industrial customers. With end-to-end automation technology and industrial software, solid vertical-market expertise, and technology-based services, the Sector enhances its customers' productivity, efficiency, and flexibility. With a global workforce of more than 100,000 employees, the Industry Sector comprises the Divisions Industry Automation, Drive Technologies and Customer Services as well as the Business Unit Metals Technologies. For more information, visit http://www.siemens.com/industry
The Metals Technologies Business Unit (Linz, Austria), part of the Siemens Industry Sector, is one of the world's leading life cycle partners for the metallurgical industry. The Business Unit offers a comprehensive technology, modernization, product and service portfolio as well as integrated automation and environmental solutions covering the entire lifecycle of plants. For more information, visit http://www.siemens.com/metals
Corex is a registered trademark of Siemens AG and/or one of its subsidiaries
Reference Number: IMT201208240eContact
Wieland Simon | Siemens Industry
Intelligent wheelchairs, predictive prostheses
20.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA
Jelly with memory – predicting the leveling of com-mercial paints
15.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA
Physicists have developed a technique based on optical microscopy that can be used to create images of atoms on the nanoscale. In particular, the new method allows the imaging of quantum dots in a semiconductor chip. Together with colleagues from the University of Bochum, scientists from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute reported the findings in the journal Nature Photonics.
Microscopes allow us to see structures that are otherwise invisible to the human eye. However, conventional optical microscopes cannot be used to image...
On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.
We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
23.01.2018 | Earth Sciences
23.01.2018 | Life Sciences
23.01.2018 | Materials Sciences