Horizontal spiral centrifuge is the use of solid-liquid specific gravity difference, and rely on centrifugal force field to expand thousands of times, the solid phase under the action of centrifugal force is sedimentation, so as to achieve solid-liquid separation, and under the action of special mechanism respectively discharged from the body.  The whole feeding and separation process is performed continuously, enclosed and automatically.  The high speed rotating drum without holes has concentrically installed feeding screw, and the two rotate in the same direction at a certain speed difference, which is generated by the differential.  The suspension is introduced into the inner spiral tube through the central feeding tube and then enters the drum for initial acceleration. Under the action of centrifugal force, the heavy solid phase is deposited on the wall of the drum to form a sediment layer, which is pushed to the cone section of the drum for further dehydration and discharged through the slag outlet at the small end.  The lighter liquid phase forms an inner liquid ring and is discharged from the large end overflow port.