第2期
Research and Application of Wear Resistant Refractories for Cooling Zone of Large Scale Coke Dry Quenching Ovens
作者:XU Guotao, SHENG Junbo, LYU Yongjin, CHEN Shengchun, CUI Huiming,ZHANG Honglei, LIU Li
作者机构:Wuhan Iron adn Steel (Group) Corp.
分类号:
卷号:26
期号 : 2017 年, 第2期
页码:17 - 20
内容简介

In order to prolong the service life of the cooling zone of large scale coke dry quenching ovens, six kinds possible refractories for the cooling zone of large scale coke dry quenching ovens: SiC containing brick A, SiC containing brick B, mullite-andalusite brick, spinel containing brick, zirconia containing brick, corundum-mullite brick and grade B mullite brick, were analyzed in properties. It is found that the cooling zone lining adopting SiC containing bricks or mullite-andalusite bricks has much longer service life. Based on this, a new type of wear resistant brick was developed. The brick has a compressive strength of 135 MPa, a wear loss of 2.10 cm3 (only a quarter of that of the grade B mullite brick), and a higher bulk density than the grade B mullite brick. The application of the brick in a 140 t·h-1 coke dry quenching oven showed that it performed better than the grade B mullite brick. The cooling zone adopting the new bricks has a lower coke discharging temperature, which is beneficial to the enhancement of heat recovery efficiency and steam power generation.

所需耐材币:5
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