| 摘要 |
<p>A device for dewatering material suspensions, possibly in connection with liquid treatment. The device comprises two cylindric rotary liquid-permeable press rolls (10), the shell surface of which is covered with wire cloth (11). The press rolls are located in a vat (12) partially enclosing the rolls, which between themselves form a nip (15). Seals (16, 17) are provided in the vat (12), so that an airtight space (13) is formed between the rolls (10) and vat (12). The seals (16) along the shell surfaces of the rolls (10) consist of a flexible steel strip (21) attached on the upper edge of the vat (12) and extending inward to the shell surface of each roll (10). The steel strip (21) is bent in the rotation direction of the roll, so that its leading end abuts the roll.</p> |
