Outside of the plant’s office building, the gates lead into the work area. Truck driver Frida Ågren guides her 72 ton vehicle through them. When she passed the Kristinebergs mine nine miles away, just about an hour ago, a sensor registered her truck and an order for load tracking was created directly in Boliden's control system. All mines in the Boliden area have been equipped with RFID readers and all trucks transporting ore from the mine to the concentrator have been provided with unique RFID tags.
Frida Ågren's first stop on the concentrator is one of the car scales. Here, her arrival is documented. Then, with the help of ABB Ability™ System 800xA, she receives an automatic instruction where the load should be tipped off. The location is determined depending on how the enrichment process is run at the time.
When Frida Ågren arrives at the tipping compartment, it is necessary that she wait for confirmation green light before she tips - If she were to tip red, the system will stop.
“None of us truck drivers want to tip wrong!” Frida Ågren says. “But before the control system was introduced, and one had driven the same route 16-18 times, it could still happen, despite the message on the radio that the tip pocket was changed. With the new cargo tracking system where everything interacts, and every critical event is automatically registered, there are no question marks anywhere, and the risk of tipping errors becomes considerably less.”