R＆D of the vibrating screen load condition on-line intelligent diagnosis system

In order to gain a real-time understanding of the working conditions of the vibrating screen and timely locate the potential troubles,an analysis is made of the screen ’s working principle and common troubles.Following that the paper presents an introduction to the on-line intelligent diagnosis system developed,proceeding from 4 aspects involving study of working mechanism,analysis of test result,on-line monitoring and structural design of the system.Thanks to the use of high-density multi-channel synchronous data collection card,the system can perform the function of synchronous collection of multi-state parameters.The system works,in principle,based on the individual monitored historical data and sets the nonlinear alarm threshold with self-learning ability,so as to adapt to the working conditions of different vibrating screens or the change of working conditions of the same vibrating screen before and after repair is made.This can lead to higher alarm accuracy,effective prevention of accidents in operation,increased trouble-free operation cycle,reduced equipment maintenance cost,prevention of huge loss due to sudden failure of screen,and improved economic performance.