| 摘要 |
An asphalt recycling conveyor system has a substantially horizontal collecting trough for receiving returned, unused hot mix asphalt. Deflecting plates are provided at the back and ends of this trough, and spaced guard rails extend across it. Asphalt is moved in the trough by an auger having standard pitch to a hopper at one end of the trough. Asphalt lump breaking rods extend from the auger shaft above the hopper to prevent these lumps from bridging the hopper opening. An elevating trough may receive the asphalt from the collection trough hopper and carry it to a higher elevation. The elevating trough has an auger having one-half standard pitch and is turned at a faster speed than the collection trough auger. Heat trace lines are provided on the bottom of the troughs to prevent asphalt buildup.
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