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Working speed of horizontal decanter centrifuge and pipette discharge

Aug 25, 2018

The horizontal decanter centrifuge is a new type of horizontal screw discharge centrifuge. The main principle of the horizontal decanter centrifuge is to use its solid-liquid specific gravity difference to increase the hydraulic field by several thousand times during operation. During operation, the solid phase is settled under the action of centrifugal force, so that solid-liquid separation can be effectively achieved to a certain extent, and the body is separately discharged under the action of a special mechanism. When centrifugal filtration is easy to block the filter medium due to solid particles and the filtration resistance is too large or the fine particles are lost too much, the filter centrifuge can not achieve the ideal separation effect. At this time, the decanter centrifuge has a filter type that is incomparable. Advantage. By using the principle of centrifugal sedimentation, solid phase particles having a small particle size can be separated from the liquid phase.

The horizontal decanter centrifuge uses a centrifugal sedimentation method to separate the suspension components. The suspension added to the drum forms a circular liquid layer in the centrifugal force action, and the solid particles settle on the drum wall. This will form a sediment. The clarified liquid is discharged through a drum overflow or a pipette, and is referred to as a separating liquid. At the end of the separation, the sediment is discharged manually or mechanically.

The solid particles of the horizontal decanter centrifuge will move axially with the liquid flow during the process of sedimentation to the drum wall. When the feed amount is too large, the liquid flows to the overflow port. The fine particles which have not settled to the drum wall are discharged to the drum with the separation liquid, so that the separation liquid is turbid. For difficult-to-separate suspensions 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 (for example, reducing the feed amount or adopting a long length) Rotating drums, etc.) to ensure that the separation liquid is clarified.