The structure of a new type refiner used in large sizedMDF mills is briefed.The principle,strucfure,features and troubleshooting of fhe mechanical seal of the refiner are detailed.

• 简要介绍用于大型纤维板生产企业的新型热磨机的结构,重点介绍该热磨机的机械密封原理、结构、特点及故障处理。