Sludge dewatering screw press Screw Press

The Thickener and Dewater SCREW PRESS are machines used for thickening and dewatering sludge. They represent a viable alternative to machines currently in use and have been designed to achieve high levels of thickening and dewatering, combined with a reduction in energy costs and maintenance. The machines are both constituted by a drum, with wedge wire spacing, inside which, by means of a geared motor with a low power and low rpm, rotates a screw with a variable pitch shaft. Dimensionally the two versions have the same footprint, what differs is mainly the screw pitch, the pneumatic counter pressure system, only present in the Dewater Screw Press, and further technical measures needed for the different purpose of the machine. Both versions are equipped with a cleaning system necessary for the drum cleaning it can be motorized or fixed. On request is possible to have the dehydrator/thickener complete with all the machines (Polymer unit EQUIP POLY, flocculator static or dynamic EQUIP FLOCCU, pumps, control panel, ect) needed for its correct operation, installed on mobile skid in stainless steel. In both models the incoming sludge should be first conditioned by a polyelectrolyte treatment, so as to obtain a proper flocculation of the sludge itself, in order to optimize the operation of the machines. The Thickener and Dewater Screw Press can be provided, on request, even with a static or dynamic flocculation system. The flocculated sludge, once it comes inside of the thickener or dehydrator proceeds its path moved by a screw with shaft.