泥泵衬板防腐性能试验研究  

Experimental Study on Corrosion Resistance of Liner of Mud Pump

作　　者：姜海 裴计田[2] 郑金录[2] 刘志坚[2] 郑雪飞 Jiang Hai;Pei Jitian;Zheng Jinlu;Liu Zhijian;Zheng Xuefei(Nanjing Design and Research Institute Co.,Ltd.,China Coal Technology and Engineering Group,Nanjing 210031,China;Jining No.3 Coal Mine,Yanzhou Coal Mining Co.,Ltd.,Zoucheng 272069,China;College of Mechanical and Electrical Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]中煤科工集团南京设计研究院有限公司,南京210031 [2]兖州煤业股份有限公司济宁三号煤矿,山东邹城272069 [3]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《煤矿机械》2019年第5期41-43,共3页Coal Mine Machinery

基　　金：中煤科工集团2018年度青年项目(2018QN015)

摘　　要：针对大型泥泵前衬板腐蚀严重、抗汽蚀性能差、更换频繁等问题,通过数值模拟探究前衬板表面凹凸不平度对衬板磨蚀的影响,并在不同速度下对多种材料进行磨损与汽蚀试验以探究其抗磨蚀性能。研究分析发现,凹坑的存在大大加剧了前衬板壁面磨蚀程度,缩减了前衬板过流部件的使用寿命,在不同速度工况下,聚脲抗磨蚀性能最好,硬度为HA72的聚氨酯材料次之,均优于现用高铬钢,而在高于27 m/s的情况下,聚氨酯材料磨损严重,不适用于速度较高的工况。In view of the serious corrosion of large mud pump front liner,poor anti-cavitation performance and frequent replacement,the influence of unevenness on the surface of the front liner on the abrasion of the liner was explored by numerical simulation,and various materials were worn at different speeds.With the cavitation test to explore its anti-abrasion performance.The research shows that the existence of the pit greatly aggravates the degree of abrasion of the front liner wall and reduces the service life of the front liner over-flow component.Under different speed conditions,the polyurea has the best anti-abrasive property,and the hardness is HA72 polyurethane material.All of them are superior to the existing high-chromium steel,and in the case of more than 27 m/s,the polyurethane material is seriously worn and is not suitable for the high speed working condition.

关 键 词：泥泵前衬板 磨损 汽蚀 耐磨材料 

分 类 号：TB304[一般工业技术—材料科学与工程]