It is installed in the pollution prevention device at the time of dredging job and the floating

摘要

PROBLEM TO BE SOLVED: To prevent a pollution control curtain from being broken caused by being contacted with a grab or the like.;SOLUTION: This pollution control equipment is provided with a floating body 1 floating above a dredging work site, a pollution control curtain 2 hung down into the water in a state fitted to the floating body 1 and wound around, preventing pollution from running out to surroundings, a deflection preventive member 3 retaining a shape in the water of the pollution control curtain 2 by preventing the curtain 2 from deflecting or undulating to the inner peripheral side in the inner peripheral side position of the curtain 2, and a fitting member for fitting the deflection preventive member 3 to the floating body 1. It is preferable that the pollution control curtain 2 is closely attached to the deflection preventive member 3 by making use of negative pressure at the outer peripheral side of the deflection preventive member 3 brought in a permeation draining by using a member having a permeation draining property as the deflection preventive member 3.;COPYRIGHT: (C)2004,JPO