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Vinogradov, E., Karimov, M., Gordon, Y., Sadri, A., & Spirin, N. (2018). Use of Non-distractive Testing AU-E Technology to Evaluate Hearth Conditions at CherMK–SEVERSTAL. KnE Engineering, 3(5), 57–70. https://doi.org/10.18502/keg.v3i5.2655

https://doi.org/10.18502/keg.v3i5.2655

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authors

  • E Vinogradov
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  • M Karimov
    No author data available.
  • Y Gordon
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  • A Sadri
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  • N Spirin
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Published Date

  • Jul 17, 2018

Use of Non-distractive Testing AU-E Technology to Evaluate Hearth Conditions at CherMK–SEVERSTAL

KnE Engineering / VII All-Russian Scientific and Practical Conference of Students, Graduate Students and Young Scientists (TIM'2018) / Pages 57–70

Abstract

Intensive operation of blast furnace allows increase in production of hot metal and profitability of Iron & Steel Works. However, blast furnace life could be sacrificed if no measures are taken to protect refractory lining and to build stable accretion. CherMK and Hatch developed a systematic approach to monitor conditions of BF hearth lining using Acousto Ultrasonic-Echo (AU-E) non-destructive testing developed by Hatch. Multiple testing of blast furnaces revealed problematic areas with accelerated refractory deterioration and minimal thickness, formation of elephant foot, extent of accretion and speed of refractory wear, cracks and other anomalies. Improvement in coke quality, periodical staves washing, the addition of titania, grouting, etc., were recommended and implemented to prolong furnace life while maintaining the intensity of furnace operation.



Keywords: blast furnace inspection and monitoring, non-destructive testing (NDT), refractory deterioration, blast furnace campaign

References
[1] Sadri, A.. (2006). Systems, Methods and Apparatus for Non-Disruptive and NonDestructive Inspection of Metallurgical Furnaces and Similar Vessels: Patent Application Publication. US 2006 0186585.


[2] Sansalone, M. J. and Streett, W. B. (1977). Impact-echo: Nondestructive Evaluation of Concrete and Masonry, p. 339.Ithaca, NY: Bullbrier Press.


[3] Sadri, A. (2005). Non-destructive determination of refractory and build-up thickness in operating furnaces using an acousto ultrasonic reflection technique, in Proceedings of the Materials Degradation: Innovation, Inspection, Control and Rehabilitation Symposium, COM2005. Calgary, Alberta, Canada.


[4] Sadri, A., Gordon, Y., and Rampersa, A. (2007). Acousto ultrasonic-echo (AU-E): A non-destructive testing technique for blast furnace hearth refractory condition monitoring., AdMet 2007, in Proceedings of International Conference Advances in Metallurgical Processes and Materials, vol. 2, pp. 77–85. Dnipropetrovsk, Ukraine.


[5] Filatov, S. V., Kurunov, I. F., Gordon, Y., et al. (2016). Careful control of refractory lining conditions ensures intensive operation and long campaign of blast furnace, in AISTech Proceedings, vol. 1, pp. 695–704.