The impeller agitator is a device used in the coagulation and sedimentation process to mix suspended solids in water with flocculants. Generally, impellers are installed vertically in circular (or square) water tanks. The ratio of pool diameter to impeller diameter is generally 2-6. The water flow in the pool is an axial flow with rapid radiation. The water flows through the pool from top to bottom, with a residence time of 0.75-5 minutes and a stirring time of 30-150 seconds. The advantage of this device is that it can flexibly adjust the mixing speed according to the amount and quality of water being processed.
Technical indicators:
1. Mixing speed self-control: 600 ± 60r/min, 400 ± 40r/min
2. Timing device: 90 minute resolution, 1 second
3. Speed measurement error: ± 2r/min