Solid bowl horizontal decanter centrifuge for solid - liquid separation

Working principle

Horizontal decanter centrifuge is a kind of screw discharge sedimentation centrifuge. It is mainly composed of a high-speed rotating bowl, a screw conveyor with a hollow shaft and a differential with the same rotation as the rotating bowl and a slightly lower speed than the rotating bowl. When the suspension to be separated is sent into the bowl by the hollow shaft, it is immediately thrown into the bowl cavity under the action of the centrifugal force generated by the high-speed rotation. The high-speed rotating bowl generates strong centrifugal force to sling the solid particles with higher density than the liquid phase on the inner wall of the drum to form a solid layer (because of the ring shape, called the solid ring layer); due to the low density of water, the centrifugal force is small , therefore, the liquid layer can only be formed inside the solid ring layer, which is called the liquid ring layer. Due to the different rotation speeds of the screw and the bowl, there is a relative movement between the two (that is, the difference in rotation speed). The relative movement of the screw and the bowl is used to slowly push the sludge in the solid ring layer to the cone end of the bowl and pass through the drying zone. After that, it is continuously discharged from the outlets distributed on the circumference of the bowl; the liquid in the liquid ring layer is continuously discharged from the weir by gravity to the outside of the bowl to form a separated liquid.

Application

1. Pharmaceutical industry: used for raw feed separation and clarification.

2. Vegetable oil industry: used for oil - impurities separation after the oilseed is pressed.

3. Beverage industry: used for fruit and vegetable juice solid-liquid separation.

4. Waste water: used for mud dewatering process.

5. Chemical: used for chemical raw feed purification and clarification

Main parameter