***Who is the person watching the amperage on the Pulverizers?***
Pulverizer amps have nothing to do with it. When the coal feeder runs out of coal the feeder trips. Then the pulverizer trips on no ignitors at low loads.
The Primary hot air then backs up into the feeder and into the silo unless there is coal in the silo throat to stop it. No coal in the silo means the hot air can ignite the coal dust and....Kaboom.
It is the coal handler’s job to make sure there is coal in the silos.