| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharge controller for excavated soil which sufficiently enhances the conveying efficiency of discharge mud by forming plug, and particularly optimize discharging of mud. SOLUTION: The discharge controller for excavated soil is provided with a mud-discharge pipe 14, a receiver tank 22, a mud-discharge unit 26, a mud- discharge valve 16 equipped at the front end of the mud-discharge pipe 14, an air introduction valve 20 equipped at the downstream side from the mud- discharge valve 16, and a flowmeter 32. The output of the flowmeter 32 is input to set a control object function to be led from the output, and the opening/ closing time of the mud-discharge valve 16 and the air introduction valve 20 is obtained so as to minimize the control object function, and these valves are alternately opened or closed. |
