Patent ID: 8920078
Filing Date: 2014-12-30
Classification: B65G

Abstract:
1. A pneumatic grain conveyance system for transporting grain from a grain dryer to a second piece of equipment, comprising: at least one transport pipe having a grain inlet comprising an airlock constructed and arranged to receive grain discharged from the grain dryer, the transport pipe including a sensor; a blower motor mounted to drive air through the at least one transport pipe; a variable speed motor drive electrically coupled to power the blower motor; and a processor and software operative to provide a blower motor speed control signal to the variable speed motor drive based on at least a first input corresponding to a reading from the sensor, a second input corresponding to a set point for the sensor reading, and a third input corresponding to a discharge rate of grain from the grain dryer, wherein the blower is thereby controlled to decrease the damage to the grain received from the grain dryer as the grain is transported through the transport pipe.