Hydrocyclone ICS

Category / Typology POTABLE WATER — GRIT REMOVAL UNIT

When to use it The hydrocyclone ICS type is installed downstream of grit removers to improve dewatering of the discharged grit. It is suitable for municipal and industrial potable water treatment lines and for pre-treatment steps such as screening, filtration and grinding.

How it is made The hydrocyclone has no moving parts and is composed mainly of three or four assembled parts:

• tangential inlet volute
• one or two truncated conical bodies joined by flanges
• manual or motorized valve at the grit outlet (flange-coupled)

How it works Feed water enters tangentially through the volute creating a vortex; the axial outlet conveys the clarified stream. Centrifugal action, proportional to particle density, drives grit toward the lateral walls of the truncated conical body where it descends by gravity to the outlet while clarified water moves upward through the center. Typical installation is at the inlet of a grit classifier where the hydrocyclone performs initial grit-water separation and reduces the classifier capacity requirement. The absence of mechanical moving parts and gearmotors minimizes installation and maintenance needs.

Strengths

• No gearmotors or mechanical moving parts
• Passive operation without electrical power consumption
• Effective grit-water separation
• Simple operation and low maintenance requirements

Characteristics / technical specifications

• Principle: centrifugal separation in a truncated conical body
• Construction: inlet volute, truncated conical body/bodies, outlet valve (manual or motorized)
• Versions: available in 3-part or 4-part assemblies depending on model
• Typical application: downstream of grit removers, at grit classifier inlets
• Sectors: potable water treatment, grit removal, screening, filtration, grinding
• Benefits: passive operation (no power), reduced classifier capacity requirement, low installation and maintenance costs, long service life