DESCRIPTION AND WORKING PRINCIPLES
Microfiltration technology combined with the polymer disc permits filtration spans of between 10 and 150 μm and quality separation even in the presence of high hydraulic pressure or peak loads of suspended solids. The new and fast nozzle cleaning system requires little energy and water. The fluids flow from the inside towards the outside, so the suspended solids are captured in the filter and the filter container remains perfectly clean. The modular nature of the disc filtering station is such that the filter units can be made extremely compact with filtering surfaces of up to 8 sq m for each sq m of occupied space.
The polymer fabric offers the following benefits over loose-fibre fabric: no suspended solids pass through the fabric during the washing phase; no suspended solids accumulate in the fabric, so cleaning is more efficient; virtually no wear and simpler maintenance. The incoming water is introduced, through the center tube, between the pairs of discs normally stationary, having a canvas of filtration able to retain suspended solids of magnitude greater than the spacing of the canvas used.
The water flows by gravity through the canvases installed on the discs and the solids are retained accumulating on the inner surface. Reached a certain level of clogging, permanently monitored by a sensor is activated by the rotation of the discs, providing for the discharge of accumulated solids through an opening between them. At the same time the system is activated in pressure washing, carried out in countercurrent, consists of a set of nozzles, easily removable to ensure perfect cleaning of filter cloths.
The uses of disc filters: