REFRACTORIES & LIME ›› 2018, Vol. 43 ›› Issue (1): 17-20.

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Study on the application of magnesia-carbon brick MT-14A in GOR converter bottom

Li Ying1）  Tao Yuting1）  Cao Junqing2）  Zheng Lianying2）  Cao Dali3）   

  1. 1.Haicheng Houying Group, Haicheng 114200, China；
    2.Liaoning Qinghua Refractory Material Co.,Ltd., Dashiqiao 115100, China；
    3.School of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China
  • Online:2018-02-10 Published:2018-02-10

Abstract:

This paper described the application of magnesia-carbon brick MT-14A in 65T GOR converter bottom and analyzed the sample bricks at the bottom of shorter service life.The results showed that the longest furnace life using 1 000mm-long magnesia-carbon brick MT-14A is 62 times and the average life is 50 times, and that using 800mm-long magnesia-carbon brick MT-14A is 41 times and the average life is less than 30 times.It’s also found that the magnesia-carbon brick MT-14A got fractured in service and proved not a suitable material to be employed in GOR converter bottom since the damage mechanism of MT-14A is melting loss of fused-magnesite and decar-bonization in working surface.

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