KOTOBUKI High-Efficiency Decanter Centrifuge
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| The sewage sludge treating process consists of thickening, digestion and
dewatering of the sludge produced in water treating systems; and the dewatering
process, one of the last stages of treatments, is largely divided into the
filtering method and centrifuging method. The screw decanter-type centrifuge has
recently increased in the frequency of being introduced owing to the large
processing capacity per unit as well as easiness of odor-control and facile
operation/maintenance. We have improved the screw decanter type centrifuge by
adding unique pressurizing mechanism and developed the "KOTOBUKI High Efficiency
Centrifugal Decanter" anew, to which a hydraulic control system is incorporated
enabling the activation of differential speed mechanism and stable continuous
operation at a marginal differential speed, thus attaining a substantial
reduction of the water content of cake with minimal addition of cohesive agent.
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| 1. |
Excellent dewatering performance |
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Water content of cake was reduced by 5-10% compared with the conventional
decanter-type centrifuge |
| 2. |
Excellent separating performance |
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Excellent separating performance |
| 3. |
Reduction in the adding rate of cohesive agent |
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Elimination of broken flock by unique method for dosing flocculant |
| 4. |
Full-automatic continuous operation |
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Stabilization of water content of cake with a uniform screw-conveyor load
control by the hydraulic control system |
| 5. |
Reduction in running cost |
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Cost of chemicals is drastically reduced by the cutback in the amount of
flocculant |
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| Compressible slurry such as Sewage sludge, Village drainage sludge, Night soil
sludge, Garbage drainage sludge, Industrial drainage sludge, etc. |
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