CSIRO’s motion analyser commercialised by Ludowici
Ludowici has commercialised a lightweight, handheld screen motion analyser that was originally developed by CSIRO in an Australian Coal Association research project.
Screen Motion Analyser.
According to Ludowici, its analyser allows mines to monitor the operation of screens and feeders more regularly than was possible with previous technology.
According to Ludowici, the analyser is user-friendly, requires no specialist training to use and can be operated without impacting production.
Leader of the CSIRO team that developed the analyser, Mike O’Brien, said previous methods of measuring stroke and drive frequency were unreliable.
The Screen Motion Analyser is fixed to the screen using magnets, records vibration simultaneously in three directions (horizontal, vertical and lateral) and sends vibration data to a smartphone via Blue Tooth.
The unit calculates and displays screen operating frequency, vibrating stroke and lateral displacement, and can save files for further analysis.
Repairing screens is time-consuming, impacts on production rates and replacements screen cost up to $500,000. Effective monitoring of screen performance can deliver significant savings, Mr O’Brien explained.
“Uneven distribution of the feed onto the screen deck can cause a deviation in the motion across the screen, leading to higher screen wear. If the frequency of the screen drifts is too close to the natural screen frequency, then catastrophic failure can occur.”