| 摘要 |
PROBLEM TO BE SOLVED: To provide a tank with an inner cover to be inexpensively manufactured, whose maintenance is easy. SOLUTION: The tank with the inner cover is provided with the inner cover sliding, lifting and lowering the inner face of the tank in compliance with the feed and discharge of a content while keeping the horizontal level, and the inner cover is provided with at least three vertical members at the almost equal intervals on the outer periphery of an inner cover main body of the short cylindrical shape, and the thickness of the vertical members is formed same as or slightly larger than a clearance between the inner face of the tank and the inner cover main body to bring the vertical members into slidable contact with the inner face of the tank without clearances. The thank with the inner cover sliding on the inner face of the tank and lifted and lowered thereon in compliance with the feed and discharge of the content while keeping the horizontal level or almost keeping the horizontal level, and a dispersing partition for dispersing a feed material is provided almost on the center of the outer bottom section of the inner cover. |
