Paper Title:
Thermo Mechanical Simulation of the Flue in Coke Dry Quenching Technology
  Abstract

According to the process feature of the coke dry quenching (CDQ), the factors of the destructive mechanism that influence the sequence function properties of the brick were analyzed. The countermeasures have been adopted for the defects of the bricks for CDQ, such as inferior thermal shock stability and short lifetime, etc. In order to search the effect of thermal expansion stress and mechanical load stress on the CDQ, the temperature field and stress field of the flue in the CDQ were analyzed according to the thermal elastic and plastic theory. The Drucker-Prager plasticity model combined with a tension cut-off criterion was described material behavior. All material properties were taken as temperature dependent. The result indicates that the support bracket under high gradient temperature will bring on the highest thermal stress, which is the main reason of fracture of the support bracket. The cycling temperature has the ability to cause repeated crack propagation throughout the whole service period. To solve this problem, the design of the structure, the method of the heat exchange and the properties of the materials will be improved. The obtained results give a good insight into the reasons of material failure and help to find counter-measures for prolonging the lifetime of CDQ.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
4135-4138
DOI
10.4028/www.scientific.net/AMR.255-260.4135
Citation
X. Chen, Q. M. Chang, C. J. Chen, Y. X. Zhang, "Thermo Mechanical Simulation of the Flue in Coke Dry Quenching Technology", Advanced Materials Research, Vols. 255-260, pp. 4135-4138, 2011
Online since
May 2011
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Price
$32.00
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