Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Siemens develops new electric arc furnace for direct reduced iron melting

19.01.2012
Simetal EAF FAST DRI boosts productivity of electric steel production by up to 15 percent

Siemens VAI Metals Technologies offers steelworks operators an electric arc furnace that has been specially developed for the use of DRI (direct reduced iron). The Simetal EAF FAST DRI is designed for a continuous melting process as electrical energy input and DRI are supplied during tapping. This shortens tap-to-tap times and reduces specific energy consumption. An overall productivity increase of around 15 percent can be achieved with a 150-ton furnace. The arc furnace has a modular structure, which also makes it possible to retrofit existing, conventional furnaces. With this new furnace concept Siemens underlines its technological leadership in electric steelmaking.


Simetal EAF FAST DRI from Siemens. The new arc furnace was specially designed for the use of direct reduced iron.

The Simetal EAF FAST DRI electric arc furnace has a tiltable lower vessel with an extensive liquid heel. The resulting continuous flat-bath operation allows electrical energy input and DRI feeding during tapping. Thanks to the patented furnace advanced slag-free tapping system (FAST), charging, tapping and taphole refilling are possible under power-on conditions. Compared with conventional arc furnaces, tap-to-tap times can be reduced by up to 15 percent. Energy consumption is cut by 20 kilowatt-hours per ton and electrode consumption falls by ten percent. The continuous supply of electrical energy during flat-bath operation not only improves productivity, but also avoids line harmonic distortions such as flicker.

The continuous operation of the furnace offers a number of other benefits. Coal and oxygen injection as well as foaming slag control can be implemented even more precisely. Slag- free tapping results in an enhanced alloys yield and better steel desulfurization. Installation of additional burners thus becomes superfluous. Thermal stress on the refractory and structure materials also remains constant, prolonging their useful lives.

The Simetal EAF FAST DRI is designed so that, in combination with the Hot Transport System (HTS) from Siemens, it can also be fed with hot DRI at temperatures of around 600 °C. Thanks to the modular design of the new electric arc furnace, existing furnace installations can also be retrofitted with FAST DRI technology.

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 suppliers of plant construction and engineering in the iron and steel industry as well as in the flat rolling segment of the aluminum industry. The Business Unit offers a comprehensive product and service portfolio for metallurgical plants and equipment as well as integrated automation and environmental solutions covering the entire lifecycle of plants. For more information, visit http://www.siemens.com/metals

Reference Number: IMT201201071e

Contact
Mr. Rainer Schulze
Metals Technologies
Siemens AG
Turmstr. 44
4031 Linz
Austria
Tel: +49 (9131) 7-44544
rainer.schulze@siemens.com

Dr. Rainer Schulze | Siemens Metals Technologies
Further information:
http://www.siemens.com

Further reports about: Business Vision DRI EAF Metals Metals Technologies Simetal financial sector

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Data use draining your battery? Tiny device to speed up memory while also saving power

The more objects we make "smart," from watches to entire buildings, the greater the need for these devices to store and retrieve massive amounts of data quickly without consuming too much power.

Millions of new memory cells could be part of a computer chip and provide that speed and energy savings, thanks to the discovery of a previously unobserved...

Im Focus: An energy-efficient way to stay warm: Sew high-tech heating patches to your clothes

Personal patches could reduce energy waste in buildings, Rutgers-led study says

What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...

Im Focus: Lethal combination: Drug cocktail turns off the juice to cancer cells

A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.

The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...

Im Focus: New Foldable Drone Flies through Narrow Holes in Rescue Missions

A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.

Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...

Im Focus: Topological material switched off and on for the first time

Key advance for future topological transistors

Over the last decade, there has been much excitement about the discovery, recognised by the Nobel Prize in Physics only two years ago, that there are two types...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

New Plastics Economy Investor Forum - Meeting Point for Innovations

10.12.2018 | Event News

EGU 2019 meeting: Media registration now open

06.12.2018 | Event News

 
Latest News

Data use draining your battery? Tiny device to speed up memory while also saving power

14.12.2018 | Power and Electrical Engineering

Tangled magnetic fields power cosmic particle accelerators

14.12.2018 | Physics and Astronomy

In search of missing worlds, Hubble finds a fast evaporating exoplanet

14.12.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>