Serie NPC/E Belt Filter Press
COMEC belt filter presses are used for the dewatering of highly diverse types of sludge.
The operation of COMEC belt filter presses is based on continuous mechanical filtration. The sludge is first pressed by two roller-operated filter belts and then mixed in the sludge reactor with a polyelectrolyte flocculant. The sludge is distributed evenly over the width of the belts and pre-dewatered in the gravity zone. In a subsequent step, the sludge cake is turned over, enabling additional water to drain out when the cake is crushed. In the ensuing angle zone, the belts converge and thus exert slight pressure on the sludge to prepare it for entry into the alternating pressure zone. The roller diameters decrease in the direction of the sludge flow and the sludge is subjected to increasing pressure to achieve maximum possible dewatering. At the machine outlet, doctor blades remove the dewatered sludge from the belts, which are subsequently cleaned by high-pressure nozzles. Pneumatic units with sensors guarantee the centering of the belts, tensioned using pneumatic cylinders.
COMEC belt filter presses allow for a continuous dewatering process ensuring high throughput and extremely durable filter belts.
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