PROVISIONAL ENCLOSURE FOR PREVENTION OF DUST DISPERSION

摘要

PROBLEM TO BE SOLVED: To provide a provisional enclosure for prevention of dust dispersion, which can prevent the dust generated in the site of repair works from dispersing to other floors and can improve the working environment. ;SOLUTION: A provisional enclosure to enclose a landing door 2 at the site of repair works is equipped with a drawin hole 8 at which a dust collecting device 7 is connected to collect dust generated in the chipping operation, a blowing hole 9 installed in such a way as covering the doorway 4 of the enclosure, and a pipe to diverge the exhaust air in the dust collecting device 7 and send it to the blowing hole 9, wherein wind is sent out of the hole 9 to prevent the generated dust from dispersing out through the doorway 4, and dust dispersion to the outside is precluded by inhaling the wind and the dust inside enclosure by the dust collecting device 7.;COPYRIGHT: (C)1999,JPO