The hot gunning repair of refractories for converters, ladles, EAFs, RH-snorkels, etc., is a cost saving alternative to a shut down and renewal of the complete lining. This process increases the service life of a furnace considerably and it further results in savings in reheating energy. Due to the quick […]
This paper discusses Tenova’s ‘Intelligent EAF’ solution, provides actual plant results confi rming reduced energy, lower fume system maintenance, increased yield and productivity, and gives a view to the future, where effi cient use of DRI and hydrogen will play an increasingly important role in EAF steelmaking.
The potential for full automation of the Electric Arc Furnace (EAF) is explored in this paper, by means of a description of key technologies. These technologies include robotics and non-contact sensors that act individually and in combination, to improve process consistency and productivity, while reducing operating costs.
Reducing reheating furnace gas consumption and the billet head-tail temperature differential for bar mills
Nuova Carpenteria Odolese (NCO) have developed and commissioned an insulated roller table/billet reject table, between the reheating furnace and fi rst stand, to retain heat and reduce head-tail temperature differentials, in new and existing and bar mills
As a part of the modernization of the Oxelösund Blast Furnace No. 4 hot blast system, SSAB and Danieli Corus built an additional hot blast stove in 2019, for commissioning in 2020. After careful preparation, the vessel shell was fully prefabricated in an off-site workshop and erected in its operating […]
Dango & Dienenthal (D&D) have developed a parallel lifting-lever technology, that has been deployed via two applications described here. SAM series machines optimize the skimming process in a steelworks and increase the yield of pure metal. With new drive and control concepts, these machines already have the tools for fully […]
A great deal of what is published and announced in recent years states and explains the need to decarbonize, or better defossilize, the iron- and steelmaking industry. The holy grail of achieving this is Direct Carbon Avoidance (DCA) by switching technologies from integrated BF-BOF steel plants toward DR-EAF steel plants.