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PROBLEM TO BE SOLVED: To enhance collection efficiency for collecting sedimentary sand on a sedimentation basin to a sand collection pit for improving grit efficiency.SOLUTION: In a grit method in which sand is collected to a sand collection pit by jetting pressure water in a drain state, via a main trough, and the sand is sucked and transferred by a grit device, a drain state is set when a water level is at an intermediate point between the highest point and lowest point of a bottom part of the main trough.
【課題】沈砂池の沈砂を集砂ピットに集める集砂効率を高めて、揚砂効率を向上させる。【解決手段】排水状態において圧力水の噴射により主トラフを経由して集砂ピットに集砂し、その砂を揚砂装置により吸引して移送する揚砂方法において、沈砂池の水位が主トラフの底部の最高地点と最低地点の間にあるときを排水状態とする。【選択図】図3
PROBLEM TO BE SOLVED: To enhance collection efficiency for collecting sedimentary sand on a sedimentation basin to a sand collection pit for improving grit efficiency.SOLUTION: In a grit method in which sand is collected to a sand collection pit by jetting pressure water in a drain state, via a main trough, and the sand is sucked and transferred by a grit device, a drain state is set when a water level is at an intermediate point between the highest point and lowest point of a bottom part of the main trough.
【課題】沈砂池の沈砂を集砂ピットに集める集砂効率を高めて、揚砂効率を向上させる。【解決手段】排水状態において圧力水の噴射により主トラフを経由して集砂ピットに集砂し、その砂を揚砂装置により吸引して移送する揚砂方法において、沈砂池の水位が主トラフの底部の最高地点と最低地点の間にあるときを排水状態とする。【選択図】図3
GRIT METHOD
揚砂方法
ITAKURA HIROAKI (author)
2015-08-06
Patent
Electronic Resource
Japanese
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