| Impeller Type | Central / off center Baffles: 0 / 2 / 3 / 4 Blades: 2 / 3 / 4 Stages: 1 |
|---|---|
| Flow Direction | Radial |
| Preferred Arrangement | Center Mounted |
| Blending | • • |
| Suspending | • • |
| Dispersing | • • |
| Heat Transfer | • • |
| Gassing | • • |
| Flow Range | Turbulent / Transitional |
| Viscosity Range | 1 - 50000 |
| Features | - Universal mixing impeller for a wide viscosity range - Variable blade angles (standard versions with 20° to 45°) |
| Diameter Ratio | 0.5 - 0.8 [d1 / d2] |
| Speed | 300 - 1500 |
| Tip Speed | 5 - 20 [ft/s] |
Helical ribbon agitators, also known as helical screw agitators, are a type of axial flow agitator commonly used in various industries for mixing and blending applications. These agitators have a unique helical ribbon-like blade design that imparts axial flow patterns within the mixing vessel. Here are some key features and characteristics of helical ribbon impellers:
Due to their gentle mixing capabilities, ability to handle high-viscosity fluids, and effective solids suspension, helical ribbon impellers are commonly used in industries where vertical mixing and fluid circulation are critical. The versatility and scalability of helical ribbon impellers make them valuable tools in various industrial processes.
Helical ribbon agitators, with their unique features and capabilities, find widespread use in various industries where vertical mixing, gentle blending, and efficient solids suspension are essential. Here are some common industries where helical ribbon agitators are extensively employed:
Helical ribbon agitators are selected for their ability to handle high-viscosity fluids, gentle mixing capabilities, and efficient solids suspension. Their design allows for effective vertical mixing and fluid circulation, making them valuable tools in a wide range of industrial processes.
Computational Fluid Dynamics (CFD) helps our engineering team study how the impeller moves liquid inside a tank before finalizing agitator speed, impeller diameter, shaft position and baffle arrangement. For industrial impellers, CFD visualization is useful for reviewing circulation, velocity distribution, turbulence level and possible dead zones.
At Premix Technologies, CFD review supports practical agitator and impeller selection for blending, solid suspension, heat transfer, gas dispersion, slurry handling and process mixing applications. The video below demonstrates how flow lines and velocity distribution can be reviewed to improve mixing efficiency and reduce uneven circulation inside the vessel.
CFD flow visualization for agitator and impeller mixing performance review.
Technical answers about selection, operation, materials, controls and application requirements.
Helical Ribbon Agitator in India is a mixing solution designed to create the required circulation, suspension, dispersion, blending or heat-transfer performance for its intended process.
It is used in process tanks or vessels where the product, tank geometry and mixing objective match the equipment duty.
Impeller selection depends on viscosity, density, solids, gas rate, shear sensitivity, tank geometry and the required flow pattern.
RPM, impeller diameter, power and torque are selected together using process properties, tank dimensions and the required mixing intensity.
Yes, when the complete operating range is included in the design basis and the motor, gearbox, shaft and impeller are checked at the worst condition.
Carbon steel, SS304, SS316, SS316L, duplex, coated steel and selected non-metallic constructions may be used depending on corrosion, abrasion and hygiene requirements.
Baffles, sealing and mounting depend on tank geometry, vortex risk, pressure, vacuum, chemical hazard and maintenance requirements.
Provide tank diameter and height, operating volume, density, viscosity, temperature, pressure, solids, process objective, material and seal requirements.
Premix Technologies designs Helical Ribbon Agitator in India from actual tank geometry, fluid properties, process duty and mechanical-design requirements.
