Centrifugal separation solutions from Chinese technology leader, established since 1954

The rotating part of these decanter tricanter centrifuges is mounted on a compact, in-line frame, with main bearings at both ends. Vibration dampers are placed under the frame. The rotating part is enclosed in a casing with a cover and a bottom section with integrated outlets for both solids and the liquid being removed.

Decanter Centrifuge working principle

The feed suspension is introduced through an inlet pipe into the feed zone of the conveyor where it is accelerated and directed into the interior of the bowl. The settled solids are conveyed axially towards the small end of the bowl by means of the screw conveyor, which rotates at a slightly different speed than the bowl. On the way to the discharge ports the solids are lifted out of the pond up along the dry beach. The solids are finally discharged from the bowl through the discharge ports into the collecting chamber of the casing that surrounds the bowl. From there the solids are removed by gravity through the outlet funnel. The liquid phase forming a hollow cylinder due to the centrifugal force, and flows towards the large end of the bowl. There the liquid overflows adjustable plate dams into the centrate chamber of the casing and is discharged by gravity.

The light liquid phase is discharged into the casing through radial holes in the large end hub. The heavy liquid phase is discharged through axial holes in the large end hub. The liquid radius for the light liquid phase is smaller than the radius for the heavy liquid phase. The liquid level is controlled by plate dams. In order to prevent the light liquid phase from leaving the bowl through the heavy liquid phase outlet, a separating plate is placed on the inside of the large end hub. The heavy liquid phase has to pass under the separating plate before being discharged into the casing. The liquid radius for the heavy liquid phase is controlled by plate dams. The solids are discharged in the normal way.

The bowl, conveyor, inlet tube, outlets, cover and other parts in direct contact with the process media are all made of stainless steel. The discharge ports, conveyor flights and feed zone are protected with materials that are highly resistant to erosion. The frame is made of mild steel with an epoxy enamel finish.

Huading Separator supplies a wide range of wear protection for decanter centrifuges to meet the requirements of various applications:

This is a very simple design that is cost-effective to purchase and operate. One motor drive systems are used when the solids volume is constant, the solids are easy to convey, and requirements for residual water content in solids are not stringent. The input shaft of the drive is set in motion by the main motor via a second belt drive, generating differential speed as a function of bowl speed and gear transmission.

This system enables cost-effective regulation of differential speed under good operating conditions with wide regulating ranges. The secondary motor sets the input shaft of the gear in motion and generates differential speed as a function of bowl speed and gear transmission. Two motor drives are used when solid volumes fluctuate significantly, when solids are conveyed under difficult conditions, and when stringent requirements apply to residual water content.

This system operates similarly to the two motor drive but uses a rotating hydromotor supplied with hydraulic regulation by a pump unit instead of a mechanical gear. Because the differential speed is proportionate to the conveyed quantity of oil, automatic regulation can be provided without any problem.

Huading Separator has been developing and manufacturing decanters for decades and is one of China's leading decanter manufacturers with extensive experience and expertise in various applications.

Huading Separator has been developing and manufacturing centrifuges for nearly 60 years, and is one of China's leading manufacturers. Huading Separator has more experience and expertise than any other separator manufacturer when it comes to applying and using decanter centrifuges for the purpose of continuous separation.

For more information, please refer to: huading-separator.com