| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a dustproof method for an asphalt plant by which dust scattering occurring upon extracting an aggregate can be suppressed by a simple method.SOLUTION: There is provided the dustproof method for an asphalt plant having a plant body 3 which includes: an ordinary temperature aggregate storage bin 15 for storing ordinary temperature sand before undergoing heating and drying treatment; an aggregate measuring tank 8; and a mixer 9. In the plant body 3, the ordinary temperature sand discharged from the ordinary temperature aggregate storage bin 15 can be charged to the mixer 9 after being measured by the aggregate measuring tank 8. When extracting remaining heated sand from the aggregate storage bin 6, the remaining heated sand is delivered to the aggregate measuring tank 8 at a lower position and measured, then charged to the mixer, meanwhile an ordinary temperature aggregate corresponding to an aggregate quantity and the aggregate temperature of the heated sand, is additionally charged into the mixer 8, and the heated sand and the ordinary temperature aggregate are subjected to agitation-mixing treatment for a predetermined time, so that the heated sand is wetted and the occurrence of dust is suppressed. After that, the heated sand is discharged from the mixer 9.</p> |
