Flash mixer with radial blades (RB)
Outline
Achieves low power while maintaining water quality. The running cost of the agitation system in the mixing basin is reduced.
Features
Radial blades (RB) and agitator blades
Radial blades (RB) are installed at the bottom and agitator blades are set near the surface of the water.
Efficient chemical mixing
Thanks to the circular flow going from the upper agitator blades and the tornado-like upward flow caused by the RB at the bottom, the chances of collision between the flocculant and each particle has been greatly improved. Efficient chemical mixing is achieved.
Effects of Installation
Energy Saving
High-efficiency agitation reduces power and energy consumption.
Installation without changing the existing structure
It can be installed without changing the existing structure by reducing the weight of the electric motor and reduction gears, thanks to power reductions and reduction of the weight of the short agitation shaft.
Reduce repair costs
On-site maintenance is possible, which reduces the cost of reduction gear repairs.
System composition
Other features
| Items | Other features |
|---|---|
| Electric motor | Adjustable speed |
| Reduction gear | 2 to 3 gears, easy maintenance (on-site maintenance) |
| Agitator blades | 4 flat paddles, main material: SUS304 |
| Agitator shaft | Main material: SUS304 Short agitation shaft to attach the agitator blades close to the water surface |
| Radial blades (RB) | 4 blades, main material: SUS304 |
Comparison
Comparison between a Flash Mixer with Radial Blades and a conventional agitator (e.g., 160,000 m3/d)
| Flash Mixer with Radial Blades (5.5 kW) | Suspension type conventional agitator (7.5 kW) | |
|---|---|---|
| Electricity costs | 0.7* (due to power reduction) | 1.0* |
| Agitator weight | 540kg | 1,160kg |
| Maintenance | Replacement frequency of 5 years, maintenance cost 0.7* (Reduction through part costs and on-site maintenance) |
Replacement frequency of 5 years, maintenance cost 1.0* |
| Notes for Construction | 4 blades and a blade mounting plate must be installed at the bottom of the water tank (inflow from the bottom). | (1) New reinforcement frames may be required (2) Large agitator weight |
*If the cost of the suspension type is set to 1.0, the cost of the Flash Mixer with Radial Blades will be the same.