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Component composition and working principle of horizontal centrifuge

Jul 12, 2019

The working principle of the horizontal centrifuge is that the two liquid phases and one solid phase enter the centrifuge, and rely on the centrifugal force field to expand it several thousand times. The solid phase is settled under the action of centrifugal force, and the two liquid phases also appear. Layering, so that the solid-liquid-liquid three-phase separation is achieved, and the body is separately discharged by the action of a special mechanism. The entire feed and separation process is continuous, closed, and automated.

 

The horizontal centrifuge is mainly composed of drums, spirals, differentials, frames, casings, motors and other components. The drum adopts a double-vertebral angle design, and the inner wall of the drum is specially designed with a longitudinal concave-convex groove for improving the efficiency of the spiral conveying solid phase. The working surface of the spiral blade has a hard alloy protective layer, which effectively improves the wear life of the spiral blade. The main motor is controlled by the main inverter, and the sub motor is controlled by the sub inverter. The frequency of the motor can be adjusted freely. The power supply of the auxiliary frequency converter is provided by the main frequency converter, which is called DC common bus power supply. The DC common bus power supply realizes the energy feedback when the auxiliary motor is in the working state of the generator, which can effectively save energy.

 

The high-speed three-phase centrifuge transports the material to be separated into the centrifuge drum by the feed pump. The high-speed rotating drum produces a strong centrifugal force to settle the solid phase particles larger than the liquid phase density to the inner wall of the drum due to the spiral and The rotation speed of the drum is different, there is relative movement between the two (ie, the difference in rotation speed, adjustable), and the solid (slag) having a large density settles on the drum wall. The clear liquid with different density of the two phases forms a concentric cylinder, the lighter liquid phase is in the inner layer, and the heavier liquid phase is in the outer layer.

 

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