Centrifuge is to rely on the gravity of the solid liquid two phase difference for the separation of sludge dewatering, in general, through high-speed rotation, to form solid phase liquid circulation layer, the liquid phase is located in the center of circulation, directly from the outlet flow out, the outer fringes of the solid phase in the circulation by centrifuge spiral centrifuge, become dry and soft mud cake.
High speed rotation is the basis of the centrifugal separation, and the amount of adding polyacrylamide, help the tiny particles in the sludge, agglutination, gathered together to adapt to the high intensity of rotating shearing. Polyacrylamide, after China's entry into wto, therefore, the first thing to ensure full flocculation after full strength, second, the addition of polyacrylamide would promote the precipitation of sludge water between the middle.
Higher organic matter content in sewage sludge, in order to ensure the water content of sludge after dehydration are lower, most use a high degree of ion, high molecular weight cationic polyacrylamide, to ensure the normal operation of the sludge dewatering system