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Es ist Zeit, die Stahlindustrie zu elektrifizieren

von Hubert Hunscheidt

Stahl ist nach wie vor einer der nützlichsten und gefragtesten Rohstoffe der Welt, doch die Produktionsprozesse sind energieintensiv und erzeugen große Mengen an Kohlendioxid (CO2). Weltweit sind die Stahl- und Eisenindustrie für etwa 7 Prozent der CO2-Emissionen verantwortlich. Besonders emissionsintensiv sind Heizprozesse, die traditionell mit Gas oder Öl befeuert werden. Kanthal bietet jedoch mit der elektrischen Heizung eine praktikable Alternative.

"Es gibt viele Missverständnisse über elektrische Heizungen. Zum Beispiel, dass sie nicht in der Lage ist, bestimmte Temperaturen zu erreichen. Aber mit unserer Technologie, die Ofentemperaturen bis zu 1500°C abdeckt, kann man jeden Erhitzungsprozess in der Stahlerzeugung elektrifizieren", sagt Anders Björklund, Präsident von Kanthal. "Wir haben bewiesen, dass Kanthal über die Technologie, das thermische Know-how, die Ressourcen und die globale Präsenz verfügt, um alle sehr energieintensiven Erhitzungsprozesse zu elektrifizieren."

Neben der Beseitigung von CO2- und NOx-Emissionen und der Verbesserung des thermischen Wirkungsgrads bietet die elektrische Beheizung auch eine präzise Temperaturregelung. Die Reduzierung von Lärm und Abgasen führt zu einem saubereren, ruhigeren Produktionsprozess und Arbeitsumfeld.

"Während die derzeitige Heiztechnologie überwiegend gasbefeuert ist, bieten elektrische Heizprozesse einzigartige Möglichkeiten, den Einsatz fossiler Brennstoffe zu reduzieren und gleichzeitig die thermische Effizienz zu erhöhen und die Arbeitsumgebung zu verbessern", sagt Dilip Chandrasekaran, Business Development Manager Steel, Kanthal und einer der Redner auf der Sustainable Industrial Manufacturing Conference, die vom 28. bis 29. Juni in Brüssel, Belgien, stattfinden wird.

In seinem Vortrag wird Chandrasekaran den Nutzen und die Vorteile der elektrischen Beheizung für verschiedene Anwendungen in der Stahlerzeugung erläutern und Beispiele für die neuesten Entwicklungen in diesem Bereich aufzeigen, mit besonderem Schwerpunkt auf der großtechnischen Gasbeheizung, einschließlich Modellierung und experimenteller Daten.

Über Kanthal

Kanthal® ist eine weltweit führende Marke für Produkte und Dienstleistungen in den Bereichen nachhaltige industrielle Heiztechnik und Widerstandsmaterialien. Das Unternehmen ist Teil der Sandvik-Gruppe und verfügt über eine starke Tradition in der Innovation und umfangreiche Investitionen in Forschung und Entwicklung. Das Unternehmen revolutionierte die Heizungsindustrie 1931 mit der Einführung der Eisen-Chrom-Aluminium-Legierung (FeCrAl). Seitdem hat Kanthal bahnbrechende Materialien und Produkte auf den Markt gebracht, wie z. B. die leistungsstarken Molybdändisilicid (MoSi2) Kanthal® Super Heizelemente und die korrosionsbeständigen Materialien Kanthal® APM und APMT. Im Jahr 2019 startete Kanthal seine Dienstleistungen im Bereich der additiven Fertigung mit Kanthal® AM100, der weltweit ersten Legierung für Heizanwendungen, die speziell für den 3D-Druck entwickelt wurde.

 

Quelle und Foto: Sandvik AB

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