For this purpose, the bagging line was to be monitored. ENVEA proposed a very simple monitoring solution including measuring the dust concentration.
The bags are transported from the bagging unit to the palletiser via a conveyor belt. The bags tip over at a transfer point. If a bag is not properly sealed, a large amount of dust will then abruptly escape.
Since this only happens with incompletely sealed bags, the problematic bags could be detected by measuring the dust concentration in the ambient air at the transfer point and removed from the process before they reach palletising.
ENVEA‘s AirSafe 2 has been designed to monitor the dust concentration in ambient air of process applications, making it ideal for Bostik’s requirements. The AirSafe 2 was mounted at the transfer point above the conveyor belt and set to a specific dust limit value. As soon as this is exceeded, the conveying process to the palletiser is automatically interrupted and the incompletely sealed bag can be removed.