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while purifying the polluted river water that even for ecological restoration to create a naturally -way resealable automatic correction hydrological using eco-friendly construction methods
while purifying the polluted river water that even for ecological restoration to create a naturally -way resealable automatic correction hydrological using eco-friendly construction methods
PURPOSE: a kind of environmental protection construction method is that a kind of two sides open-type is provided to purifying contaminated river water with automatic water gate and naturally generation environment-protective fishing route using an automatic water gate. ;CONSTITUTION: in environmental protection construction method, automatic water gate is a kind of two sides open-type by sieving (1), oil carrier) water cushion unit, upper opening hydraulic cylinder, hydraulic cylinder and under shed (20). A kind of arc is led (2), vertical guide (3) and for limiting the bottom closed upper part water gate and be formed in two insides. The front end of piston rod and the upper end opening hydraulic cylinder of pin. Rear end cylinder top is installed by the lower openings hydraulic cylinder of vertical guide and pin. Cylinder rod front end (32) is connected to the back end cylindrical body of lower-shaft water gate and pin. ;The 2010 of copyright KIPO submissions
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