| 摘要 |
PROBLEM TO BE SOLVED: To provide a dissolving device of powder or granular body which can dissolve powder entirely in a short period of time, which causes little failure and realizes easy maintenance, and which exhibits high convenience when used for dissolving a combustion improver in a fuel oil at ships.SOLUTION: A dissolving device includes a dissolving tank 10 which has a rectangular cross-section and an inclined bottom face, and which stores a solution, a powder or granular body storing unit 12 and a valve member 13 provided on an opening of the dissolving tank, a plurality of first jetting nozzles 15 which are provided near the opening in the dissolving tank and which form a jetting stream in an obliquely downward direction, a plurality of second jetting nozzles 16 which are provided at a lower portion in the dissolving tank and which form a jetting stream at least along the bottom face of the dissolving tank, and a circulating and pressurizing unit 20 which pressurizes a liquid inside the dissolving tank and supply the liquid to the plurality of first jetting nozzles and the plurality of second jetting nozzles. |
