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Decanter centrifuge Application Details Decanter centrifuge design consists of a solid container, called a bowl, which rotates at high speed. Inside the bowl tube, a screen conveyor rotates in the same direction, but at a slightly different speed. A differential gear is typically used to adjust speed. 1. The decanter centrifuge slurry is fed through a stationary pipe, which is inside a hollow shaft connected to a screw conveyor or scroll. 2. The slurry enters a feed compartment located inside of the conveyor and is forced through discharge nozzles to the bowl section. 3. Once inside the bowl, centrifugal force causes the material to separate. 4. The screw conveyor moves the solids to the tapered end where they are discharged. 5. Clear fluid flows out the other end. This type of centrifuge is common in the wastewater treatment plants. It is considered a continuous flow machine because it will run hours at a time. Some decanter centrifuges are powered by a motor and gearbox combination. The gearbox provided the correct speed and torque to drive the centrifuge. Since this is a mechanical type of configuration, it is subject to frequent preventive maintenance and mechanical failures. An AC drive can provide the required torque with greater efficiency and reliability. KOSUN AC drives have a full set of features designed to protect centrifuge operation. Overtorque and Undertorque protection are used to detect impending faults and help prevent machine downtime. Integrated electronic dynamic braking is used to bring the centrifuge to a stop without the need for brake pads. KOSUN AC drive features such as Dwell, Stall Prevention, and Feed Forward work together to develop required torque and speed required to power a centrifuge filled with dense slurry. Fully adjustable Acceleration and Deceleration times, together with Intelligent Stall Prevention, can also be employed to reduce processing time. http://www.kosunservices.com/solids_control_equipment/jet_mud_mixer.html">Decanter centrifuge Application Details Decanter centrifuge design consists of a solid container, called a bowl, which rotates at high speed. Inside the bowl tube, a screen conveyor rotates in the same direction, but at a slightly different speed. A differential gear is typically used to adjust speed. 1. The decanter centrifuge slurry is fed through a stationary pipe, which is inside a hollow shaft connected to a screw conveyor or scroll. 2. The slurry enters a feed compartment located inside of the conveyor and is forced through discharge nozzles to the bowl section. 3. Once inside the bowl, centrifugal force causes the material to separate. 4. The screw conveyor moves the solids to the tapered end where they are discharged. 5. Clear fluid flows out the other end. This type of centrifuge is common in the wastewater treatment plants. It is considered a continuous flow machine because it will run hours at a time. Some decanter centrifuges are powered by a motor and gearbox combination. The gearbox provided the correct speed and torque to drive the centrifuge. Since this is a mechanical type of configuration, it is subject to frequent preventive maintenance and mechanical failures. An AC drive can provide the required torque with greater efficiency and reliability. KOSUN AC drives have a full set of features designed to protect centrifuge operation. Overtorque and Undertorque protection are used to detect impending faults and help prevent machine downtime. Integrated electronic dynamic braking is used to bring the centrifuge to a stop without the need for brake pads. KOSUN AC drive features such as Dwell, Stall Prevention, and Feed Forward work together to develop required torque and speed required to power a centrifuge filled with dense slurry. Fully adjustable Acceleration and Deceleration times, together with Intelligent Stall Prevention, can also be employed to reduce processing time. http://www.kosunservices.com/solids_control_equipment/jet_mud_mixer.html
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