Compressive Creep Behavior of Low Porosity Fireclay Bricks (LPFBs) for Glass Furnace Regenerator

Abstract:

LPFBs are mainly applied in the lower party of glass furnace regenerator as checker works or walls. They are subjected to the loads of upper refractory materials at high temperature. So the creep behavior of them should be considered to predict the longevity of the regenerator. Two kinds of LPFBs were chosen as the test samples. It is shown that the creep rates of them under different stresses (0.1MPa, 0.2MPa, and 0.3MPa) and different temperatures (1200°C and 1280°C) are within 0.2%. LPFB1 with lower apparent porosity is more sensitive to temperature. LPFB2 is more sensitive to stress. The relationship between the creep and other mechanical properties is: the higher the Al₂O₃ content, the higher the bulk density, the lower the apparent porosity, and the higher the refractoriness under load of LPFB, the lower the total strain range of it. A model combined with phase diagram was built to analyze the microstructures and the creep curves with different shapes of the two LPFBs.

• Periodical: Key Engineering Materials (Volume 680)
• Pages: 352-357
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.680.352
• Online since: February 2016
• Authors: Kun Ming Li*, Chuan Cai Pan, Jin Li Xie, Chun Yan Li, Li Ping Li, Fei Xue, Guo Wei Lin, Lin Lin Zhang
• Keywords: Creep Behavior, Glass Furnace Regenerator, Low Porosity Fireclay Bricks, Microstructure

References

[1] S.L. Gu, Y.S. Zhang, A.J. Yang, Refractories selection for regenerator checker of floating glass furnace, Journal of Luoyang Technology College 10(4) (2000)17-18.

[2] P.M. Velasco, M.P.M. Ortiz, M.A.M. Giró, et al, Development of sustainable fired clay bricks by adding kindling from vine shoot: study of thermal and mechanical properties, Applied Clay Science 107(2015)156-164.

DOI: 10.1016/j.clay.2015.01.017

[3] A.A. Kadir, A. Mohajerani, Effect of heating rate on gas emissions and properties of fired clay bricks and fired clay bricks incorporated with cigarette butts, Applied Clay Science 104(2015)269-276.

DOI: 10.1016/j.clay.2014.12.005

[4] M. Sutcu, H. Alptekin, E. Erdogmus, et al, Characteristics of fired clay bricks with waste marble powder addition as building materials, Construction and Building Materials 82(2015)1-8.

DOI: 10.1016/j.conbuildmat.2015.02.055

[5] P. Pilate, V. Lardot, F. Cambier, et al, Contribution to the understanding of the high temperature behavior and of the compressive creep behavior of silica refractory materials, Journal of the European Ceramic Society 35(2015)813-822.

DOI: 10.1016/j.jeurceramsoc.2014.09.019

[6] A.G.T. Martinez, A.P. Luz, M.A.L. Braulio, et al, Creep behavior modeling of silica fume containing Al2O3-MgO refractory castables, Ceramics International 38(2012)327-332.

DOI: 10.1016/j.ceramint.2011.07.010

[7] A.R. D Arellano-López, J.J. Meléndez-Martínez, T.A. Cruse, et al, Compressive creep of mullite containing Y2O3, Acta Materialia 20(2002)4325-4338.

DOI: 10.1016/s1359-6454(02)00264-1

[8] L.A. Díaz, R. Torrecillas, Hot bending strength and creep behaviour at 1000-1400°C of high alumina refractory castables with spinel, periclase and dolomite additions, Journal of the European Ceramic Society 29(2009)53-58.

DOI: 10.1016/j.jeurceramsoc.2008.05.044

[9] Z.W. Xu, Y.B. Luo, Mechanism of damage of middle and lower course low-porosity clay checker brick in glass tank regenerators, Journal of Xi'an Institute of Metallurgy and Construction Engineering 1(1986)67-81.

[10] GB/T 21114-2007, Chemical analysis of refractory products by XRF-Fused cast bead method.

DOI: 10.3403/02815281

[11] GB/T 2997-2000, Test method for bulk density, apparent porosity and true porosity of dense shaped refractory products.

DOI: 10.3403/30347806

[12] YB/T 370-1995, Test method for refractoriness under load of refractory products (non-differential, with rising temperature).

DOI: 10.3403/30159046u

[13] GB/T 5073-2005, Refractory products – Test method of creep in compression.

[14] M. Hamidouche, M.A. Madjoubi, K. Loucif, et al, Processing and characterization of refractory made of Algerian kaolin, in: Proceedings of the Eighth Conference on Ceramics, 3-5 Sep., (2002).

[15] Y.Q. Liu, Silicate ceramic phase diagram, Chemical Industry Press, (2011).