| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily and inexpensively agitate-mix a solid material precipitated or floating in response to operation stopping when resuming operation, in a tank for storing a solid material-containing liquid, in an operation method of a storage tank of the present invention.SOLUTION: An operation method of a storage tank 1 controls a liquid level so as to stop liquid reception to the tank 1 when rising up to a predetermined high liquid surface level HL and resume the liquid reception to the tank 1 when a liquid level in the tank 1 lowers up to a predetermined medium liquid surface level MDL in normal operation, and agitates a sandbag or its other solid material precipitated or floating in the tank 1 in operation stopping time by the liquid reception up to a high-high liquid surface level HHL by receiving liquid in the tank 1 up to the high-high liquid surface level HHL further higher than the high liquid surface level when resuming operation after stopping the operation for a predetermined time or more.</p> |
