REBOUND MATERIAL RECOVERY DEVICE, REBOUND MATERIAL RECOVERY METHOD AND REBOUND MATERIAL REUSE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a rebound material recovery device, a rebound material recovery method and a rebound material reuse method capable of suppressing dryness of recovered rebound material.SOLUTION: A rebound material recovery device 51 for recovering rebound material B generated at the time of spraying in a spraying method used for construction of a marginal depth disposal facility includes: a suction unit 53 for sucking the rebound material from spots where the rebound material B falls; an air conveying machine 55 for conveying the rebound material B sucked by the suction unit 53, by air; a dust collector 57 having introduction space into which the rebound material B conveyed by the air conveying machine 55 is introduced with air, for separating the rebound material B in the introduction space from air and discharging the rebound material from a discharge port 63 by gravity; and a flexible container 59 for receiving the rebound material B discharged from the dust collector 57. The dust collector 57 has a turbo fan 69 for discharging air forcibly from the introduction space to the outside.