Journal of Failure Analysis and Prevention

, Volume 15, Issue 3, pp 430–435 | Cite as

Prevention of In-Service Failure of Seal Valve Axles of Blast Furnace Through Non-destructive Condition Monitoring

  • Shivanandan S. Indimath
  • Souvik Das
  • Goutam Mukhopadyay
  • Sandip Bhattacharyya
Technical Article---Peer-Reviewed


The upper and lower seal valves together form a key part in the top charging system of blast furnaces. The valves serve to create a gas-tight chamber during the charging of furnaces preventing the escape of blast furnace gas into the atmosphere during the operation. The axles in these valves are an integral part in the sealing mechanism of the valve flaps. Several accounts of failure of these axles in service at a Blast Furnace prompted the need for a predictive maintenance practice. This paper accounts for the failure analysis done on these axles to arrive at the root cause of failure and further the implementation of suitable NDT techniques for condition monitoring of the axles. This ultimately led to prevention of further in-service failures.


Blast furnace Failure analysis Health monitoring NDT 


  1. 1.
    M.R. Mitchell, Review of the mechanical properties of cast steels with emphasis on fatigue behavior and the influence of microdiscontinuities. J Eng Mater Technol 99(4), 42–46 (1976)Google Scholar
  2. 2.
    M.H. El Haddad, K.N. Smith, T.H. Topper, Fatigue crack propagation of short cracks. J. Eng. Mater. Technol. 100(1), 42–46 (1979)CrossRefGoogle Scholar
  3. 3.
    Standard Test Methods for Determining the Inclusion Content of Steel. E45-13, ASTM International, pp. 1–19Google Scholar
  4. 4.
    C. Hellier, Ultrasonic Testing, Handbook of Non Destructive Evaluation (McGraw-Hill, New York, 2001), pp. 71–7115Google Scholar
  5. 5.
    “Standard Practice for Ultrasonic Pulse-Echo Straight-Beam Contact Testing,” E-114-10, ASTM International, pp. 1–5Google Scholar
  6. 6.
    Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method, SE-797, ASME Boiler and Pressure Vessel Code Section V Article 23 (2010), pp. 435–441Google Scholar

Copyright information

© ASM International 2015

Authors and Affiliations

  • Shivanandan S. Indimath
    • 1
  • Souvik Das
    • 1
  • Goutam Mukhopadyay
    • 1
  • Sandip Bhattacharyya
    • 1
  1. 1.Tata Steel LimitedJamshedpurIndia

Personalised recommendations