AUGER FOR TRANSPORTING PARTICULATE MATERIAL WITH A REDUCED TENDENCY TO BLOCK

摘要

In a transportation tube for particulate fuel material such as coal to acombustion chamber there is provided an auger mounted in the tube including ashaft and a flight mounted on the shaft. The tube has therein three flatabutmentbars fixedly mounted on an inside surface of the tube at the 2-oclock, 5-oclock and7-oclock positions and extending longitudinally of the tube with an insidesurface ofthe abutment bars located inwardly of the inside surface of the tube and withtheflight having an outside edge sitting on the bottom bars and spaced slightlyinwardlyof the upper bars to help prevent rotation of the material with the flight inthe tube toreduce blockages.