两种氧化铝粉对熔铸AZS耐火材料结构和性能的影响

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (8): 2952-2959.

两种氧化铝粉对熔铸AZS耐火材料结构和性能的影响

邓丽娜¹, 易帅¹, 王明刚², 李伟豪¹, 司国栋¹, 姜文博¹, 王长安¹, 谢金莉¹

1.中国国检测试控股集团股份有限公司,北京 100024;
2.山东耐材集团鲁耐窑业有限公司,淄博 255200

收稿日期:2023-03-23 修订日期:2023-05-31 发布日期:2023-08-18
作者简介:邓丽娜(1992—),女,工程师。主要从事先进陶瓷和耐火材料方面的研究。E-mail:dengln221@163.com
基金资助:
北京市科技服务业促进专项(YD-809)

Effects of Two Types of Aluminum Oxide Powder on Structure and Properties of Fused Cast AZS Refractories

DENG Lina¹, YI Shuai¹, WANG Minggang², LI Weihao¹, SI Guodong¹, JIANG Wenbo¹, WANG Chang'an¹, XIE Jinli¹

1. China Testing & Certification International Group Co., Ltd., Beijing 100024, China;
2. Shandong Refractories Co., Ltd., Lunai Company, Zibo 255200, China

Received:2023-03-23 Revised:2023-05-31 Published:2023-08-18

摘要/Abstract

摘要： 熔铸Al₂O₃-ZrO₂-SiO₂(AZS)耐火材料是玻璃熔窑的关键筑炉材料。本文分别以煅烧氧化铝粉和普通工业氧化铝粉为原料制备熔铸AZS耐火材料,并采用岩相分析、X射线衍射分析和能谱分析等测试方法,对比分析了两种熔铸AZS耐火材料的结构和性能。结果表明:普通工业氧化铝粉制备的熔铸AZS耐火材料中存在未转化完全的γ-Al₂O₃,导致获得的Al₂O₃-ZrO₂共晶体分布不均匀。煅烧氧化铝粉制备的熔铸AZS耐火材料中,氧化铝物相为α-Al₂O₃,其晶体结构中斜锆石少,Al₂O₃-ZrO₂共晶体多,玻璃相分布均匀。晶体结构的分布影响着玻璃相渗出量和抗玻璃液侵蚀性能。煅烧氧化铝粉制备的熔铸AZS耐火材料玻璃相渗出量比普通工业氧化铝粉制备的熔铸AZS耐火材料玻璃相渗出量降低了0.57个百分点,抗玻璃液侵蚀性能提高了0.15 mm/24 h。

关键词: 煅烧氧化铝粉, 普通工业氧化铝粉, 熔铸AZS耐火材料, 玻璃相渗出量, 抗玻璃液侵蚀

Abstract: Fused cast Al₂O₃-ZrO₂-SiO₂ (AZS) refractory is the key building material of glass furnace. Calcined aluminum oxide powder and ordinary industrial aluminum oxide powder were used as raw materials to prepare fused cast AZS refractories, respectively. The structure and properties of the two fused cast AZS refractories were compared and analyzed by lithofacies analysis, X-ray diffraction analysis, and energy dispersive spectroscopy analysis, etc. The results indicate that fused cast AZS refractory material prepared by ordinary industrial aluminum oxide powder has the incomplete conversion γ-Al₂O₃, which leads to uneven distribution of Al₂O₃-ZrO₂ eutectic. The alumina phase in the fused cast AZS refractory prepared by calcined alumina oxide powder is α-Al₂O₃. The fused cast AZS refractory prepared by calcined aluminum oxide has less baddeleyite, more Al₂O₃-ZrO₂ eutectic and more uniform distribution of glass phase. The distribution of crystal structure affects amount of glass phase exudation and corrosion resistance to molten glass. The glass phase exudation of the fused cast AZS refractory prepared by calcined aluminum oxide powder is 0.57 percentage points lower than that of fused cast AZS refractory prepared by ordinary industrial aluminum oxide powder. The corrosion resistance to molten glass of fused cast AZS refractory prepared by calcined aluminum oxide power is 0.15 mm/24 h higher than that of fused cast AZS refractory prepared by ordinary industrial aluminum oxide power.

Key words: calcined aluminum oxide powder, ordinary industrial aluminum oxide powder, fused cast AZS refractory, glass phase exudation, corrosion resistance to molten glass

中图分类号:

TQ175

邓丽娜, 易帅, 王明刚, 李伟豪, 司国栋, 姜文博, 王长安, 谢金莉. 两种氧化铝粉对熔铸AZS耐火材料结构和性能的影响[J]. 硅酸盐通报, 2023, 42(8): 2952-2959.

DENG Lina, YI Shuai, WANG Minggang, LI Weihao, SI Guodong, JIANG Wenbo, WANG Chang'an, XIE Jinli. Effects of Two Types of Aluminum Oxide Powder on Structure and Properties of Fused Cast AZS Refractories[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(8): 2952-2959.

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