| 摘要 |
A filter press leading from a sludge chamber 2 comprises a continuous filter band 15 carried on a carrier belt 16 of high lateral rigidity and the band 15 and belt 16 advance together so that frictional drag is avoided. The belt 16 is formed with open top channels 25, preferably extending at 45 DEG to the direction of movement of the belt, through which filtrate can be diverted as the solids accumulate on the filter band. The belt and band assembly is simply guided during advancement by rings, rims or flanges mounted on the ends of rollers 38, 39, 40 for supporting, deflecting or driving the belt and band assembly. Various embodiments are described and preferably the filter band/carrier belt forms the bottom wall 14 of the sludge chamber. Additional similar pressure applying filter band assemblies may co-act to squeeze the sludge, and rotating drum filter elements 5 may be provided in the sludge chamber 2, these having associated cleaning devices. <IMAGE> |
