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2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 2: Gudenau Intl. Symp. / Iron and Steel Making

Editors:Kongoli F, Kleinschmidt G, Pook H, Ohno K, Wu K
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:340 pages
ISBN:978-1-987820-25-6
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)

    The Thermophysical Bases of Control of the Fireproof Lining Wear in the Blast Furnace Hearth

    Andrey Dmitriev1; Maxim Zolotykh2; Yury Chesnokov2; Oleg Ivanov3; Galina Vitkina2;
    1INSTITUTE OF METALLURGY, URAL FEDERAL UNIVERSITY, Ekaterinburg, Russian Federation; 2INSTITUTE OF METALLURGY OF URAL BRANCH OF RUSSIAN, Amundsen st., Russia; 3URAL FEDERAL UNIVERSITY, Mira st., Russia;
    Type of Paper: Regular
    Id Paper: 61
    Topic: 2

    Abstract:

    The analysis of the existing monitoring systems of fire-resistant lining of a horn of a blast furnace is made. The monitoring system of the fireproof lining wear of the blast furnace hearth is offered. The mathematical description, algorithm and program of calculation the temperature fields in any vertical and horizontal cross-section of the hearth lining are developed on base of the heat conductivity equations with use of the indications of the temperature sensing transducer in the hearth lining. The calculation algorithm is developed regarding the account of an intricate profile of blast furnace hearth with use of a Nyquist theorem. The systems of gathering, processing and information transfer from the temperature transmitters to a program database are used. The continuous control of the temperature change in each point allows to define the remained thickness of the firebrick lining and to warn the furnace personnel about the beginning of the firebrick lining deterioration. The developed interface of the program allows to master of the oven to use many additional functions of the control in particular the history of indications of the transmitters, the remained thickness of a wall etc. The technique of definition of the optimum quantity and arrangement thermocouples in lining of the furnace hearth is made. The technique of determination of thermophysical properties of refractory materials according to the temperatures diagram at blowing-in of the furnace is developed. This monitoring system is established on five blast furnaces of metallurgical plants of China.

    Keywords:

    Furnace; Iron; Measurement; Metallurgy; Modeling; Temperature;

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    Cite this article as:

    Dmitriev A, Zolotykh M, Chesnokov Y, Ivanov O, Vitkina G. The Thermophysical Bases of Control of the Fireproof Lining Wear in the Blast Furnace Hearth. In: Kongoli F, Kleinschmidt G, Pook H, Ohno K, Wu K, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 2: Gudenau Intl. Symp. / Iron and Steel Making. Volume 2. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 275-290.