特高压棒形支柱瓷绝缘子泥浆聚沉原因分析与改善  

Analysis and Improvement of Slurry Settling of UHV Rod Post Porcelain Insulator

作　　者：韩佑民 栾艺娜 李玉平[2] 张学日 吴佳莉 HAN Youmin;LUAN Yina;LI Yuping;ZHANG Xueri;WU Jiali(Sinoma Jiangxi Electric Porcelain Co.Ltd.,Pingxiang 337000,China;School of Materials Science and Engineering,Hunan University,Changsha 410082,China;Luxi High Voltage Electric Porcelain and Electrical Research Institute,Pingxiang 337000,China)

机构地区：[1]中材江西电瓷电气有限公司,江西萍乡337000 [2]湖南大学材料科学与工程学院,长沙410082 [3]芦溪高压电瓷电气研究院有限公司,江西萍乡337000

出　　处：《电瓷避雷器》2024年第3期186-192,共7页Insulators and Surge Arresters

摘　　要：针对特高压棒形支柱瓷绝缘子坯料泥浆在流转过程中出现分层沉淀现象,影响坯料颗粒和成分的均匀性,导致了坯件在干燥过程中开裂、掉伞等质量异常问题,开展了系统分析与研究,尝试从泥浆含水率、铝矾土颗粒、外加添加剂等方面分析泥浆沉降原因,最终通过选用颗粒均匀性更好的矾土A、泥浆水分控制在(57±1.5)%以及添加少量氯化铵调控泥浆的Zeta电位(从-98 mV提升到-140 mV),显著改善了泥浆的悬浮性和均匀性,解决了泥浆流转过程中出现的分层沉淀现象,提高了产品质量,2023年全年烧成瓷检合格率达到95.65%,全过程合格率达到82.53%。In view of the stratification and precipitation phenomenon of UHV rod post porcelain insulator blank mud in the circulation process,which affects the uniformity of billet particles and components,and leads to the quality anomalies such as cracking and umbrella drop of the blank during the drying process,systematic analysis and research are carried out,and the reasons for mud settlement are analyzed from the aspects of mud moisture content,bauxite particles,and additives,and finally bauxite A with better particle uniformity and mud moisture are controlled at(57±1.5)%and the addition of a small amount of ammonium chloride to regulate the zeta potential of the slurry(from-98 mV to-140 mV),significantly improved the suspension and uniformity of the slurry,solved the stratified precipitation phenomenon in the process of slurry circulation,and improved the product quality,the pass rate of fired porcelain inspection in 2023 will reach 95.65%,and the pass rate of the whole process will reach 82.53%.

关 键 词：特高压棒形支柱瓷绝缘子 泥浆 均匀性 

分 类 号：TM216[一般工业技术—材料科学与工程]