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PETER KLUT (Danieli Corus BV)13/09/2016, 08:30Blast Furnace, Design and EquipmentOral PresentationMost of the recent developments in blast furnace gas cleaning technology have been based on dry gas cleaning systems. Danieli Corus has developed a new system, applying proven technology available within the Danieli group for dry cleaning of e.g. EAF, DRI, BOF and aluminium smelter gases. This new system consists of a gas conditioning tower, reagent injection system and (pressurized) filter...Go to contribution page
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REINOUD VAN LAAR (Danieli Corus BV)13/09/2016, 08:50Blast Furnace, Design and EquipmentOral PresentationIn 1995, Krivorozhstal (now ArcelorMittal Kryvyi Rih) awarded a contract for the supply of a Pulverized Coal Injection System to Hoogovens Technical Services (now Danieli Corus). Due to economic conditions, the project could not be completed at the time. In 2015, the project was revitalized by ArcelorMittal Kryvyi Rih and the system was completed by Danieli Corus. This article discusses the...Go to contribution page
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PAUL TOCKERT (PAUL WURTH S.A.)13/09/2016, 09:10Blast Furnace, Design and EquipmentOral PresentationIn 2010 Paul Wurth introduced the G3 chute transmission gearbox for Bell Less Top blast furnace charging systems. With a maximal flow rate of 1.1m3/s, a rotation speed of 12RPM while withstanding harshest operating conditions, the G3 chute transmission gearbox offers unpreceded operation possibilities. Finer charging patterns (i.e. more chute rotations) are possible due to the higher...Go to contribution page
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JOHN HYDE (Hatch Ltd.)13/09/2016, 09:30Blast Furnace, Design and EquipmentOral PresentationRecent blast furnace reline scope assessment studies performed by Hatch concluded that Blast Furnace Reline Implementation Strategy must be developed on a case-by-case basis as many different factors can affect choices with regard to scope, schedule and the implementation of new technologies. Important considerations include planned blast furnace campaign life, reline outage duration,...Go to contribution page
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MARTINA HANEL (Mettop GmbH)13/09/2016, 09:50Blast Furnace, Design and EquipmentOral PresentationIt is the increasing demand for an economic and cost saving operation mode that requires effective cooling in order to achieve low refractory wear and good furnace lifetime, which is making cooling technology an important aspect of furnace operation. In addition, safety awareness is becoming more and more a focal point of the operating philosophy. However, the use of water - today’s standard...Go to contribution page
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JOHN HYDE (Hatch Ltd.)14/09/2016, 11:15Blast Furnace, Design and EquipmentOral PresentationPlasma torch technology was studied by several blast furnace developers in the 1970s as a means to reduce coke consumption. The developers planned to use electrical energy rather than blast oxygen enrichment to increase coal injection through the tuyeres. In the early 1980s development work stopped over concerns with plasma torch electrode life. Since this time, Westinghouse Plasma Corporation...Go to contribution page
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FRANZ REUFER (Küttner GmbH & Co. KG, Germany)14/09/2016, 11:35Blast Furnace, Design and EquipmentOral PresentationIn the past 30 years the development of pulverized coal injection technology has been driven by the cost optimization for blast furnace operation. Today blast furnace operators are facing one more very important topic for their hot metal production: CO2 emissions. By further improvement of the injection technologies even in small steps Küttners efforts in this field are significant. An...Go to contribution page
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MAKOTO GOTO (Nippon Steel & Sumikin Engineering CO., LTD.)14/09/2016, 11:55Blast Furnace, Design and EquipmentOral PresentationNippon Steel & Sumikin Engineering (NSENGI) has constructed 80 or more Blast Furnaces since 1974. This paper introduces technologies of new type copper stave which NSENGI performed improvement and development continuously.
From around 1990, a lot of Blast furnaces have been using copper staves for cooling. Though, quite a few of them have faced with some troubles. They can be roughly... Go to contribution page -
REINOUD VAN LAAR (Danieli Corus BV)14/09/2016, 12:15Blast Furnace, Design and EquipmentOral PresentationThis paper summarizes the results of a comparison of two modern blast furnace designs. These designs include similar hearth, upper stack and throat armor technologies, but differ on the lining selection for bosh, belly and stack. The first design includes copper plate coolers, graphite and silicon carbide. The second design includes copper stave coolers. Results of a partial reline modular...Go to contribution page
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CHRISTIAN WOLF (Velco GmbH)14/09/2016, 12:35Blast Furnace, Design and EquipmentOral PresentationThe injection of powdered Ti-carriers is a proven solution for protecting the refractory in the blast furnace hearth. One strategy is the injection just close to the arisen hot spot. However, for this the existing PCI systems cannot be used. It is required an additional unit with specific safety devices. Using case studies at several customers worldwide, different features and possibilities...Go to contribution page
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MARTIN SMITH (Primetals Technologies)14/09/2016, 12:55Blast Furnace, Design and EquipmentOral PresentationCritical to any blast furnace campaign is the quality of the cooling system design. Over the many years of blast furnace history, cooling systems have evolved and changed to give an optimum design that provides long campaign life balanced against cost. In recent years, the latest evolution of the cooling system design, in the shape of the copper stave, has been seen as state of the art and an...Go to contribution page
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YUN CHEOL HONG (CHOSUN REFRACTORIES, Co., Ltd.)14/09/2016, 13:15Blast Furnace, Design and EquipmentOral PresentationRecently, the tendency of Blast Furnace type is changing to Cooling Plate type from Stave Type.High thermal conductivity and abrasion resistance is the most important demand characteristics of refractories for the Cooling Plate Type.Therefore, graphite block and SiCBrick are used for shaft installation to take advantage of their excellent thermal conductivity and abrasionresistance of SiC...Go to contribution page
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