Selection and working process of working parameters of screw decanter centrifuge

- Jun 14, 2019-

During the working process of the spiral decanter centrifuge, the muddy water mixture enters the rotating drum through the feeding pipe and the spiral discharge port. Under the centrifugal force generated by the high-speed rotation of the main machine, the solid particles with a large specific gravity are deposited on the inner wall of the drum, and the spiral blades that move relative to the drum continuously scrape the solid particles deposited on the inner wall of the drum and push out the row. The slag mouth, the separated supernatant flows out of the drum through the opening of the raft.


The relative motion between the helix of the spiral decanter centrifuge and the drum is achieved by the differential. The outer casing of the differential is coupled to the drum, the output shaft is coupled to the screw, and the input shaft is coupled to the secondary motor. The main motor drives the rotating drum to rotate, which also drives the rotation of the differential housing. Since the input shaft is connected with the auxiliary motor, the secondary motor generates a braking torque, thereby driving the planetary gear to operate according to the designed transmission relationship, and according to a certain The proportional relationship transfers the torque to the helix, enabling continuous separation of the material by the horizontal screw sedimentation centrifuge.


Selection of working parameters of spiral sedimentation centrifuge


According to the material properties of the suspension, the requirements of the liquid phase and solid phase after separation, and the processing capacity, etc., the user can reasonably select the relevant parameters of the centrifuge, such as: the processing amount Q, the drum rotation speed n, the difference between the drum and the spiral The rotational speed Δn, the diameter of the overflow plate D, etc., to obtain a satisfactory separation effect.