Study on the Resistance Erosion of Periclase-hercynite Brick to KCl in Cement Kiln

摘要：

　　The periclase-hercynite brick are mainly used in cement kiln firing zone.The alkali steam in cement kiln causes the damage of periclase-hercynite brick.In this paper,the erosion mechanism was studied by the SEM morphology and X-ray diffraction of different parts of periclase-hercynite brick,which had been eroded by KCl.The results showed that erosion of KCl is mainly through the liquid phase at the low temperature stage.As the reaction temperature rise,The KCl rapidly produce gasification reaction and diffuse into the non-working surface of the produce through the pore,which erode the product.Meanwhile,the gasification reaction causes a large volume expansion,resulting in cracking damage of the product.In order to increase the service life,the density of the product should be increased and the porosity should be reduced.

关键词： cement kiln periclase-hercynite brick erosion KCl

作者: TIAN Lin GAO Wei MA Shulong

作者单位: University of Science and technology LiaoNing,Anshanl 14051,China Beijing Tongda Refractory Technologies CO.LTD,Beijing l00085,China

会议类型: 国际会议

会议名称: Conference on Refractories International 2018, CRI2018)(2018国际耐火材料学术会议)

会议地点: 杭州

会议语种:英文

页码: 1-5

在线出版日期: 2018-10-17（万方平台首次上网日期，不代表论文的发表时间）