| 摘要 |
PROBLEM TO BE SOLVED: To freely adjust the temperature of an asphalt mixture to be manufactured. SOLUTION: A branch chute 23 with a damper 24 for changing a path is disposed to a discharge section for a bucket elevator 10, and an auxiliary storage bin 25 is which aggregate is stored is disposed at the lower position of the branch chute 23. A horizontal conveyor screw 26 extracting aggregate in the bin and circulating aggregate and a vertical conveyor screw 29 with a heating means are provided to the bin 25. Sand at a high temperature is stored previously in the bin 25 while sand is heated, circulating sand by the screw 26 and the screw 29 and kept at the high temperature when the temperature of sand lowers, and the sand at the high temperature is mixed and the temperature of the asphalt mixture is adjusted.
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