| 摘要 |
PCT No. PCT/JP84/00410 Sec. 371 Date Apr. 25, 1986 Sec. 102(e) Date Apr. 25, 1986 PCT Filed Aug. 27, 1984 PCT Pub. No. WO86/01429 PCT Pub. Date Mar. 13, 1986.The device according to the present invention comprises a unidirectionally circulating endless filter cloth with a napped filter layer on the surface, a solid-liquid mixture supply device installed on the front side of filter cloth, a depressurizing suction device installed on the backside of the filter cloth, a non-filterable content withdrawing device installed downstream of the solid-liquid mixture supply device and the depressurizing suction device, and a filter cloth wash device installed downstream of the non-filterable content withdrawing device in the running direction of the filter cloth and located between the non-filterable content withdrawing device and the solid-liquid mixture supply device or the depressurizing suction device. The depressurizing suction device is equipped with a depressurized suction port splaying in the running direction of said filter cloth. The depressurized suction port is equipped with at least one group of filter cloth guide rolls on the right and left sides in the running direction of filter cloth. The filter cloth guide rolls which constitute the right of left group spread outwardly in the running direction of filter cloth. The present device can minimize damage to the filter cloth by the depressurizing suction device without decreasing the solid-liquid separation performance and thus drastically prolong the service life of the filter cloth. |
