Methodology of Technical Re-Equipment and Modernization of Furnace Structures and Operating Modes
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METHODOLOGY OF TECHNICAL RE-EQUIPMENT AND MODERNIZATION OF FURNACE STRUCTURES AND OPERATING MODES G. M. Druzhinin,1,2,3 A. A. Ashikhmin,1,4 P. V. Maslov,1,5 A. B. Popov,1,6 I. M. Khammatov,1,7 and N. B. Loshkarev2,8
UDC 669.04 (075,8)
Presently, the furnace stock of the ferrous metallurgy and heavy engineering industry comprises approximately 55%–60% of units with service life over 30–50 years. Considering that constructing new furnaces requires significant financial investments and reduces production over a long period, the technical re-equipment and modernization of units in accordance with modern requirements have become widely adopted. This paper presents an appropriate methodology for the technical re-equipment and modernization, one that enables reducing time and achieving the optimal result with the lowest cost. Keywords: technical re-equipment; modernization; furnace unit; technical inspection; calculation and theoretical analysis; burner devices; temperature and thermal mode; commissioning tests
The problem of the technical re-equipment and modernization of furnace stock in the ferrous metallurgy and heavy engineering industries has become of paramount importance. Considering that in these industries, approximately 60% of furnaces have a service life of 30 to 50 years or more [1] and constructing new units requires significant and long-payback financial costs, technical re-equipment is considered the most acceptable stage of equipment modernization [2, 3]. The experience gained in the modernization of thermal units, accumulated at SRIMHE and at the Department of Thermophysics and Informatics in Metallurgy, Ural Federal University, over the past decades enables formulating the main stages of the preparation and implementation of these works [4–18]. Stage 1 (preparatory): the reconstruction purpose and tasks are clarified (together with the customer), the unit thermal state is visually inspected, the modernization limits are determined, the technical task is adjusted (developed, refined), and the necessary data on the thermal operation of the furnace are collected. Stage 2: the thermal work of both the current and the improved furnace designs are calculated and theoretically analyzed to determine the main parameters of the temperature and thermal modes and clarify the conditions for achieving the reconstruction tasks. 1 2 3 4 5 6 7 8
Scientific-Research Institute of Metallurgical Heat Engineering (SRIMHE), Yekaterinburg, Russia.
Ural Federal University named after the First President of Russia B. N. Yeltsin, Yekaterinburg, Russia. E-mail: [email protected].
E-mail: [email protected]. E-mail: [email protected].
E-mail: [email protected]. E-mail: [email protected]. E-mail: [email protected].
Translated from Metallurg, Vol. 64, No. 5, pp. 77–81, June, 2020. Original article submitted March 27, 2020. 0026-0894/20/0506-0581
© 2020
Springer Science+Business Media, LLC
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G. M. DRUZHININ, A. A. ASHIKHMIN, P. V. MASLOV, A. B. POPOV, I. M. KHAMMATOV,
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N. B. LOSHKAREV
Stage 3: the ge
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