Patent ID: 7857967

Claim:
A sludge treatment system for dam comprising: a dam passage penetrated through a dam; an induction pipe for discharging a sediment on a floor of a body of water retained by the dam through the dam passage to the outside of the dam and having an inlet extended toward the floor of the dam and an outlet connected to an inner end of the dam passage; an induction force action pipe connected to an outer end of the dam passage and extended in a height for utilizing an atmospheric pressure as an induction force of the sediment; an air control pipe connected to the extended end of the induction force action pipe in an inverse U shape, and preventing for an air from coming into the induction force action pipe; a drain pipe connected to an open end of the air control pipe for discharging the sediment toward an outside of the dam; and an air vent pipe connected to a top flat portion of the air control pipe for dissipating the induction action of both the air control pipe and the drain pipe, wherein the induction force action pipe is at least partially U-shaped, and wherein a pipe joint exists between the induction pipe, the dam passage, the induction force action pipe, and the air control pipe, and each pipe can be rotated at its pipe joint.