18-20 June, 2003, Budapest, Hungary OSSKICenter (Törley Palace) | 
with Exhibition and Pre-Session on Thermal Energy in Hungarian
"THERMO-BRIDGE"
between East and West for technology transfer and
information exchange
| Scientific Society of
Measurement, Automation and Informatics (MATE)
Branch of Thermal Engineering and Thermogrammetry (TE and TGM)
Méréstechnikai, Automatizálási és
Informatikai Tudományos Egyesület
Hőtechnikai és Termogrammetriai (HT és TGM) Szakosztály
MATE Secretariat: H-1372 Budapest, POB. 451.,Hungary
House of Technology, Budapest
V.,Kossuth Lajos tér 6-8.III.318.
Phone: +361-332-9571, Fax:+361-353-1406
E-mail: mate@mtesz.hu benko@energia.bme.hu |
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Thermotechnics /
Hőtechnika |
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44/8 |
Determination of refractory lining
thickness of high temperature equipment using Thermovision
I.Szucs, A. B. Palotas, L. Papp*
(University of
Miskolc, Miskolc-Egyetemváros, *Dunaferr Steel Works Ltd., Dunaujváros,
Hungary) |
S6H10 |
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Refractory wall of the high temperature
equipment used in the industry plays an important role in the technological
processes. Abrasive forces, chemical corrosion, effecting on internal working
refractory materials of the high temperature equipment, thermal and mechanical
stresses during operation cause the fast and unequal thinning down in certain
areas of the lining of the industrial furnaces.
The heat loss and the wall thickness are in direct relationship. Unexpected
holes of the unevenly thinned refractory wall of hot metal pig iron mixer pose
an especially big danger since the leaking pig iron and slag can cause
operating trouble, explosion, fire or tragic accidents. The thickness of a
steel plant pig iron mixer’s lining can not be observed visually during
operation therefore the timing and the area of repair is usually determined by
local experience based on the wall’s outside temperature
Primary goal of our research is the elaboration of a diagnostic method for the
determination of the critically thinned down of refractory lining using
thermovision.
In order to examine the actual wall thickness of hot metal mixers,
thermovision is applied at DUNAFERR Steel Plants Ltd. The repairing details of
the refractory wall are determined on the basis of the temperature
distribution at the outside armor plate of the furnace. Results of the
industrial experience accumulated in the course of mixer wall repair are shown.
The correct estimation of the smallest wall thickness of furnace is expected
as a result of coupling thermovision with finite element modeling of the heat
transport processes. The diagnostic method and the diagram resulting from the
simulation can be directly used in the industrial experience.
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Contact details:
Dr. István Szűcs
University of Miskolc, Department of Combustion Technology
Miskolci Egyetem, Tüzeléstani Tanszék
Miskolc-Egyetemváros H 3515
Hungary
Phone: (46) 565-104
Fax: (46) 431-820
E-mail: tuzsi@gold.uni-miskolc.hu
Web Site: |
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| 18-20 June, 2003, Budapest,Hungary |
OSSKI
Center (Törley Palace)
"Fodor
József" National Center of Public Heath
"Frédéric Joliot-Curie"
National Research Institute for
Radiobiology and Radiohygiene. (OKK-OSSKI)
www.osski.hu |
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