摘要
立式磨是火力发电厂研磨煤的关键设备,由于磨煤辊在服役过程中易磨损,消耗量大,因而,提高磨煤辊的使用寿命,成为火力发电厂迫切需要解决的一个难题。本文分析了磨煤辊磨损的机理,提出了采用新型明弧自保护堆焊技术,修复再制造磨煤辊。实践表明,经修复的磨煤辊抗磨损性能优异,与铸造新磨煤辊相比,使用寿命提高了2倍。
The roller mill is a key equipment of coal pulverizers in the thermal power plant.How to improve service life of the milling roller is an immediate problem since it is liable to wear and causes huge consumption.In this paper,the mechanism about the wear and failure of the milling roller is analyzed,open arc surfacing welding process for repairing and remaking of the milling roller is introduced.The practice result shows that the repaired milling roller has super abrasion resistance performance,compared with...
出处
《铸造技术》
CAS
北大核心
2009年第3期432-434,共3页
Foundry Technology
关键词
磨辊
磨损
明弧
堆焊
Milling roller
Open arc
Surfacing welding
Abrasion
