陶瓷练泥机电渗仿生减粘降阻研究  

Study on Reducing Viscosity and Reducing Resistance of Ceramic Clay Pug Mill by Bionic Electroosmosis

作　　者：戴哲敏 孙坤 庞振方 黄功强 赖增光 王景超 DAI Zhemin;SUN Kun;PANG Zhenfang;HUANG Gongqiang;LAI Zengguang;WANG Jingchao(Jingdezhen ceramic institute,Jingdezhen 333403,Jiangxi,China)

机构地区：[1]景德镇陶瓷大学,江西景德镇333403

出　　处：《陶瓷学报》2021年第1期136-142,共7页Journal of Ceramics

基　　金：江西省自然科学基金(20192BAB206023);江西省重点研发计划项目(202002BBEL53013)。

摘　　要：泥料在真空练泥机挤压过程中会粘附到螺旋绞刀及筒体内壁上,这种粘附作用"拖拽"泥料运动,造成靠近接触面的泥料运动慢于远离接触面的泥料,最终引起挤出泥料产生裂纹等缺陷。为解决上述问题,利用仿生体表电渗的方法,减少粘附作用,增加泥料与接触壁面滑移速度。筒体内表面采用电渗装置后,降低了挤出筒壁与泥料之间的切向阻力,改善了陶瓷泥料速度及应力分布,表明采用仿生体表电渗对泥料减粘降阻效果显著。The clay will adhere to the spiral cutter and the inner wall of the cylinder during the extrusion process of the vacuum clay mixer.The movement of clay is dragged by adhesion,causing the clay near the contact surface to move slower than the clay away from the contact surface,and causing defects such as cracks in the extruded clay eventually.In order to solve these problems,bionic body surface electroosmosis method was adopted in this study to reduce the adhesion of clay and contacting wall surface and improve the overall sliding effect of clay.After the electroosmotic device is used on the surface of the cylinder body,the tangential resistance between the wall of the extrusion cylinder and the mud material is reduced,and the ceramic clay velocity and stress distribution have also been improved significantly.In summary,the use of bionic body surface electroosmosis has a significant effect on reducing the viscosity and resistance of clay.

关 键 词：真空练泥机 减粘降阻 仿生电渗 边界滑移 

分 类 号：TQ174.5[化学工程—陶瓷工业]