| 摘要 |
PURPOSE:To make uniform filtration possible by providing corn-shaped protrusions between branch pipes, and collecting streams flowing in from each branch pipe around which a filter screen is provided to obtain a uniform flow toward the center of the bottom part of a filtration reaction tower. CONSTITUTION:A mountain 13 and a valley 14 are alternately formed on a flat bottom surface 12 by furnishing plural protrusions 13 having a mountain-shaped cross section in a filtration reaction tower 11 from which a reaction liquid is taken out through a takeout pipe 19 at the bottom part, and a branch pipe 15 wherein small downward holes are uniformly distributed is respectively provided at the position of the valley 14. A filter screen is furnished around each branch pipe 15, and the streams flowing in from each branch pipe 15 are collected by collecting pipes 16 and 17 to obtain an almost uniform stream toward the center of the bottom part of the filtration reaction tower 11. Consequently, the structure is simplified and easily manufactured, and uniform filtration is made possible when used as a filter membrane in a large bore filtration reaction tower. |
