The two phase decanter centrifuge also uses the principle of centrifugation to separate the different components of the suspension. The suspension added to the drum forms a circular liquid layer under the action of centrifugal force, and the solid particles settle on the drum wall. Forming sediment. The clarified liquid is discharged through a Two phase decanter centrifuge drum overflow or a pipette, which is a separation liquid.
After the two phase decanter centrifuge separation process technology, the sludge can usually be discharged manually or mechanically. During the process of sedimentation to the drum wall, the solid particles also move axially with the liquid flow. When the feed amount is too large, the liquid flows to the overflow port, and the fine particles that have not settled to the drum wall are discharged with the separation liquid. Rotate the drum to make the separation liquid turbid. Therefore, for a difficult separation suspension with small solid-liquid phase density difference, small solid particles or high liquid viscosity, a sedimentation centrifuge with a high separation factor should be selected to prolong the residence time of the suspension in the drum to ensure the clarification of the separation liquid.
Due to the good separation effect, the application of the Two phase decanter centrifuge is more common, especially for the separation of the suspension in the centrifugal filtration when the solid particles are easy to block the filter medium and the filtration resistance is too large or the fine particles are excessively lost, but the sediment is separated. The moisture content is high.