| 摘要 |
PURPOSE: To reduce sealing elements and to make a filtration device a simple mechanism easily to be produced by laminating filtration units via a spacer, interconnecting the filter units by a sealing material ring, forming channels for unfiltered material between the spacer and filtration units and forming the ring a width with which filtrate channels can be completely accommodated. CONSTITUTION: Spacers 120 and filtration units 80 of rectangle, for example, are alternatively laminated. The laminated body is put in a casing mold, the filter units 80 are positioned so as to be coincident with each other and unfiltered material flow rate 40 is delineated and is fixed. Prescribed amount of the sealing material is poured into the casing mold to produce the sealing material ring 90. Then the ring is subjected to centrifugation until the sealing material is preliminarily hardened. After the sealing material is completely hardened, filtrate channels 50 running through the sealing material perpendicularly to the laminated surfaces are formed. Monofilament woven cloth of thick mesh is preferably used as the spacer 120 and in the filter unit 80, edge sections that are not embedded by the sealing material ring 90 are water tightly welded and unwelded sections are preferably sealed with the sealing material.
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