METHOD AND FACILITY FOR DREDGING RIVER AND THE LIKE

摘要

PURPOSE: To easily dredge rivers by supplying dredged mud to a force feed tank and stirring it there and forcibly delivering it by way of using air pressure. ;CONSTITUTION: A mud excavator 60 is provided separately from a force feed vessel 1, and mud on the bottom of the water excavated by the mud excavator 60 is input to a hopper 2 through a selective screen 3 provided on the force feed vessel 1. Subsequently, the selected mud is supplied to a force feed tank 6 by a screen conveyor 5, stirred by a stirrer and fluidized. When its accumulated level reaches the upper limit, supplying of the mud is stopped. By a specified force feed process, the mud is discharged to a mud disposal territory through a mud discharge pipe 70 from a force feed pipe 16 by way of using air pressure, and when the accumulated level comes to be the lower limit, force feeding of the mud is stopped and the force feeding process returns to a preparatory process and thereafter, this process is repeated.;COPYRIGHT: (C)1993,JPO&Japio