| 摘要 |
PCT No. PCT/SE88/00676 Sec. 371 Date Aug. 7, 1990 Sec. 102(e) Date Aug. 7, 1990 PCT Filed Dec. 13, 1988 PCT Pub. No. WO89/06155 PCT Pub. Date Jul. 13, 1989.The present invention relates to a method of and apparatus for pressure filtering, the pressure filter (1) used comprising pressure plates (3,4,5,6), which can be pressed against each other. Pressure chambers (8) are formed between the pressure plates and in each one of the pressure chambers two substantially vertical filter cloths are mounted. In order to loosen the filter cakes (32) from the filter cloths (9), means are used to produce sudden acceleration forces, e.g. directly or indirectly acting blow devices (34,36,38) or blow devices or lifting means, cooperating with stop surfaces, which devices and means are designed to drop the guide rails (12) from a lifted position, and/or shear forces, e.g., devices to displace the lower ends of the filter cloths in respectively opposite directions in the planes of the cloths. |
