Exploring possibilities in the adoption of carbon neutrality and compliance with SDGs across diverse industries
Our Screw Decanter Centrifuges are solid-liquid separators developed and manufactured independently by IHI, a specialist in high-speed rotating machinery.
To date, we have produced over 15,000 units that have been applied in various fields, notably in the environmental sectors for wastewater treatment, and in streamlining manufacturing processes.
Optimal processing performance corresponding to the treatment material
Simple operation
Noise control measures
Extensive lineup of models
Structure
Operating Principle
1
In general, the separation of solids and liquids in a mixture has traditionally used a settling tank that utilizes the different densities of the two materials. However, we have made adaptations to this device using weir C, as shown in the diagram. When the mixture is fed through A, the solids separate and settle at B, and the supernatant fluid is discharged from weir C.
2
When this device is rotated at high speeds (2,000 - 6,000 rpm), the centrifugal force accelerates the sedimentation of solids, which quickly accumulate on the interior wall of the rotating bowl
3
When a screw conveyor with a slight rotational difference is installed into the rotating bowl, the solids, which have settled on the wall of the bowl, shift to the right, are dewatered, and then discharged by the action of the screw conveyor. The liquids are clarified and discharged through an outlet placed on the side plate of the rotating bowl.
4
In this setup, when the slurry is fed into the device, the separated and dewatered solids are discharged from the solids outlet and the separated liquids are discharged from the liquids outlet continuously.
Primary Applications
IHI's Screw Decanter Centrifuge is currently being applied to a wide range of raw materials and boasts a high treatment capacity through continuous operation. With its exceptional performance, this centrifuge is utilized across various fields, especially in water treatment and manufacturing processes.
