Automatic filter press

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The automatic filter press is the most advanced model in the Draco® range, which performs the full cycle of sludge dewatering automatically. The model is equipped with a hydraulic group, air circuit for blowing sludge, safety systems, shaking the shaft to help sludge fall out, drainage chute, emergency stop and flange connections.

Filter press duty cycle:

1. Closing: The process begins with closing the filter press. The movable plate is driven by the hydraulic system when the required working pressure is controlled by a relay.

2. Filling: The pumping of the filter sludge to the press begins, the chambers are filled, the solid particles remain on the surface of the sheets while the liquid passes and flows through the drainage system. Initially, the filtration pressure is minimal but increases with an increasing number of retained particles.

3. Filtration: The maximum filtration pressure is reached and maintained, which is maintained until the supply of the feed pump is stopped, thus achieving an appropriate level of dehydration of the plates. The compressed air valve is then opened to clean the central duct and remove any remaining sludge.

4. Opening: After the final dewatering, the filter block is opened and the moulded cake is separated from the plates. When fully opened, the shaft shakes, which helps the cake to fall to the collection container.

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