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Author: European Communities Publisher: ISBN: Category : Languages : en Pages :
Book Description
The objectives of the research consist of developing and applying techniques and model tools allowing an online evaluation of the blast furnace hearth conditions and mainly its permeability, in order to guarantee a stable furnace operation and to control the refractory wear through early corrective actions. CRM determined the coke bed voidage in the hearth of BFB of Cockerill-Sambre by two techniques: one based on pressure measurement inside the taphole and the other based on electromotive force measurement. To get a better understanding of the data, a mathematical model was developed taking into account the movements of the deadman. ln order to continuously determine the hot metal flow rate, BFI measured the filling level in the runner at BF 2 of TKS. A statistical wear model evaluated the cross-sectional runner geometry. The data have been fed into a model to calculate the coke bed voidage on multiple taphole blast furnaces. To control the wear caused by preferential liquid flow, Corus IJmuiden developed a monitoring of temperature and heat flux information from purpose-installed duplex thermocouples. This information has been correlated over time to identify any persistent trends and used to evaluate control measures such as blocked tuyères and process shutdowns. Industrial trials at Fos BF1, consisting of temperature profile measurements along the tuyère axis, radioactive tracer experiments and coke core borings, enabled IRSID to propose a picture for the description of the effects of the central coke charging practice. Moreover, IRSID used the Fluent code ta describe the liquid flow in the hearth with regard to the deadman conditions and to simulate tracer experiments. From studies of the behaviour of the hearth skull, Corus UK proposed a method for its monitoring. The iron flow rate was measured by using strain gauges attached to the torpedo ladles, and the slag flow rate was estimated from the slag pelletiser current. Data from tuyère core drilling samples were examined to estimate the voidage in the hearth.
Author: European Communities Publisher: ISBN: Category : Languages : en Pages :
Book Description
The objectives of the research consist of developing and applying techniques and model tools allowing an online evaluation of the blast furnace hearth conditions and mainly its permeability, in order to guarantee a stable furnace operation and to control the refractory wear through early corrective actions. CRM determined the coke bed voidage in the hearth of BFB of Cockerill-Sambre by two techniques: one based on pressure measurement inside the taphole and the other based on electromotive force measurement. To get a better understanding of the data, a mathematical model was developed taking into account the movements of the deadman. ln order to continuously determine the hot metal flow rate, BFI measured the filling level in the runner at BF 2 of TKS. A statistical wear model evaluated the cross-sectional runner geometry. The data have been fed into a model to calculate the coke bed voidage on multiple taphole blast furnaces. To control the wear caused by preferential liquid flow, Corus IJmuiden developed a monitoring of temperature and heat flux information from purpose-installed duplex thermocouples. This information has been correlated over time to identify any persistent trends and used to evaluate control measures such as blocked tuyères and process shutdowns. Industrial trials at Fos BF1, consisting of temperature profile measurements along the tuyère axis, radioactive tracer experiments and coke core borings, enabled IRSID to propose a picture for the description of the effects of the central coke charging practice. Moreover, IRSID used the Fluent code ta describe the liquid flow in the hearth with regard to the deadman conditions and to simulate tracer experiments. From studies of the behaviour of the hearth skull, Corus UK proposed a method for its monitoring. The iron flow rate was measured by using strain gauges attached to the torpedo ladles, and the slag flow rate was estimated from the slag pelletiser current. Data from tuyère core drilling samples were examined to estimate the voidage in the hearth.
Author: Maarten Geerdes Publisher: IOS Press ISBN: 160750040X Category : Technology & Engineering Languages : en Pages : 176
Book Description
"This publication was and can be used as an introductory text for students of metallurgy as well as for blast furnace operators and management. The latter will benefit to solve operational problems and process optimization issues." --Book Jacket.
Author: American Institute of Mining, Metallurgical, and Petroleum Engineers. Blast Furnace, Coke Oven and Raw Materials Committee Publisher: ISBN: Category : Languages : en Pages : 378
Author: The Iron and Steel Institute of Japan Publisher: Springer Science & Business Media ISBN: 9400934319 Category : Technology & Engineering Languages : en Pages : 640
Book Description
As ironmakers are well aware, it was only a few decades ago that the blast furnace was viewed as a strange 'black box'. Recently, however, various in-furnace phenomena have become the subject of serious scientific study, largely as the result of the 'dissection' of dead furnaces, together with the development of advanced monitoring and control techniques. In this way, a new frontier has been opened within the venerable domain of metallurgy. In the light of these new developments, the Committee on Reaction within Blast Furnaces was set up in March 1977 by the Joint Society ofIron and Steel Basic Research - a cooperative research organization of the Iron and Steel Institute of Japan (ISIJ), the Japan Institute of Metals (JIM) and the Japan Society for the Promotion of Science (JSPS). Consisting of twenty-six members and advisors drawn from the fields of academia and industry, this committee collected, discussed, and evaluated numerous papers during its five year commission. Particular attention was paid to the interpretation of findings drawn from the autopsy of dead furnaces, in the context of the live furnace state, and the correlation of data regarding cohesive zone configuration, level, and furnace performance. The results of this intense research activity are presented here in the hope that they will serve not only as a source of enrichment to the professional knowledge of researchers and operators, but also as textual material for graduate students in the field of metallurgy.
Author: European Communities
Author: European Communities
Author: 
Author: Maarten Geerdes
Author: H.-P. Rüther
Author: 
Author: Robert John Nightingale
Author: 
Author: V.K Kropotov
Author: American Institute of Mining, Metallurgical, and Petroleum Engineers. Blast Furnace, Coke Oven and Raw Materials Committee
Author: The Iron and Steel Institute of Japan