Decanter Machine, Inc. now offers a new system to update the control and production of Biosolids and the centrifuge system. Decanter’s Centriscroll® system consists of a heavy duty two-stage planetary gearbox, standard AC current TEFC main drive, AC current TEFC back drive motor, control panel and a controller system.
The main drive powers the centrifuge and drives the bowl while the back drive motor powers the planetary gear box which in turn controls the speed of the internal screw conveyor that removes the solids. The Centriscroll® system is capable of operating in either manual or automatic mode. In the manual mode it provides for manual operation at a specific but manually adjustable scroll differential speed with internal torque allowed to vary up to the maximum allowable scroll shaft torque. In the automatic mode it continuously monitors changes in internal torque created by variations in feed solids and flow rates. The system controller then senses torque increase and decrease and in turn uses the torque based adjustment to control the internal screw differential speed and automatically maintains a preset torque limit.
The net effect of this system, when operated in the automatic mode, maximizes cake solids and provides the driest possible dewatered cake without plugging the centrifuge or requiring operator attention. The controller also provides for inputs and outputs to other accessories connected to the centrifuge. These are routes through the internal controller PLC and forwarded on to the plants controller (DCS) either as alarms or shut down inputs. It can also provide for complete control of the centrifuge and its accessories as a standalone unit.
The Centriscroll® system shows its versatility and value in many different ways to the end user. This system is available as part of a new centrifuge package or can be implemented into your current centrifuge system as part of an upgrade – the beauty of which is the Centriscroll® can be implemented into most any brand & model of centrifuge system on the market today.
See What Makes Up the Centriscroll System
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