Concentrate overflows through weirs at the large end of bowl, while thickened solids are conveyed by differential speed of scroll conveyor and discharged from the ports at the small end of bowl. Concentration of the thickened sludge can be controlled to constant value automatically by means of differential speed control system. Obtaining stable and good performance, centrifugal thickener is provided with several original designs such as cushion chambers to prevent disturbance of flow and baffle plate to take enough thickened sludge. Stable operation can be easily obtained even if inlet conditions such as sludge characteristics and concentration fluctuate. Thickening concentration can be optionally controlled to suit to the following process.
Compact design requires smaller space than other thickening systems of identical capacity.
Automatic operation can be easily adopted resulting in requiring little attention and simple maintenance. Enclosed construction contributes to better working environment and smell. Optimum type and size can be selected from wide lineup. High reliability is achieved from long experience and applying hard facing or sintered tungsten carbide tips on scroll flights and other wearing portions.