This paper introduced in details the domestic and international background and development process of online monitoring system application, discussed the technical characteristics of TRM type roller mill equipped with on-line monitoring system, and introduced the work principle of the on-line monitoring system in TRM type roller mill. Through the introduction of the application in the large roller mill of Guangxi Fang Cheng Gang Yuan Sheng Co. Ltd., the effect of online monitoring system in the actual operation was analyzed.

Tyre used for rotary kiln belonged to large casting , the casting quality directly determined the service life and safety, and the casting quality was determined by casting process. Through the casting process of tyre of Indonesia Heidelberg million tons project, the key points of tyre casting process was analyzed, as a reference for the research on improving the quality of large casting.

Swinging out each roller independently is one of the advantages in TRM vertical roller mill, which could be completed conveniently and fast. The traditional TRM roller mill table is the horizontal, but as the roller mill application filed expanded, the angle of table would be modified to meet the characteristics of the  new material. In this condition, adopting single cylinder to swing out roller is not practicable. Based on the traditional method, this article presents a new roller swing out device for roller mill.