| 摘要 |
<p>1. Device designed for installations for sewage purification and the concentration of sludge carried along by mains water and generally any mixed solution consisting of a liquid and solid matter in the food, agricultural, industrial and other sectors, the device comprising an admission (1) with gravity supply of sludge into a filtering cowl (3), characterized in that the admission (1) comprises a non-return valve (2) and that the filtering cowl (3) is provided, at its extremity opposite the admission (1) with a back pressure device (4) only opening to allow sludge to pass under the effect of the pressure exerted on the filtering cowl (3) by presser sleeves (5, 6, 7) disposed along the said cowl.</p> |
