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High viscosity mixer—overview
Different application environments, production processes, usage conditions, material quantities, and mixer selection are also completely different.
For example, chemical mixing may involve a three-phase mixture of gas, liquid, and solid, as well as temperature rise conditions, high pressure, explosion-proof requirements, etc. The selection of such mixers is very complex.
For example, stirring in sugar or tomato sauce processing is simply mixing the materials without the influence of gas phase, which is relatively much simpler.
The selection of propeller blades is crucial depending on different conditions.
High viscosity mixer- Selection
| Mixing grade | Liquid liquid mixture | solid-liquid suspension | gas-liquid dispersion |
| Level 1-2 | Suitable for low flow rate processes ① The specific gravity difference is less than 0.1, and the mutual solution is evenly mixed. ② The viscosity ratio is greater than 1/100 and the mutual solution is evenly mixed. ③ Mixing different materials evenly over a long period of time. ④ Smooth flow is generated on the surface of the mixed liquid. |
Suitable for low solid-liquid suspension process ① The particles slowly move at the bottom of the container. ② The particles at the bottom of the container may have periodic suspension and sedimentation. |
Applicable to processes where gas-liquid dispersion is not a critical factor ① The agitator exceeds the critical speed, resulting in lower levels of gas-liquid dispersion. ② A process that is not limited by gas-liquid mass transfer. |
| Level 3-5 | Suitable for ordinary mixing and stirring processes ① The specific gravity difference is less than 0.5, and the solution is mixed evenly. ② The viscosity ratio is greater than 1/1000 and the mutual solution is evenly mixed. ③ Small fluctuations occur on the surface of low viscosity liquids. |
Suitable for dissolution and stirring processes. Bottom solid liquid suspension ① The particles are suspended at the bottom of the container. ② The particles are evenly distributed at 1/3 of the liquid height. ③ The suspension can be discharged from the bottom outlet. |
Applicable to the process of ordinary gas-liquid dispersion ① Can make small bubbles reach the container wall. ② Part of the bubbles can be recycled to the mixer to generate recirculation. |
| Level 6-8 | Suitable for most mixing and stirring processes ① The specific gravity difference is less than 1.0, and the mutual solution is evenly mixed. ② Mix high viscosity solutions evenly. ③ Large fluctuations occur on the surface of low viscosity liquids. |
Suitable for most solid-liquid suspension stirring processes. Uniform solid-liquid suspension ① Particles are uniformly distributed at 95% liquid height. ② The suspension can be discharged from 80% liquid height. |
Suitable for common gas-liquid dispersion processes ① It can achieve a certain mass transfer requirement for the surface area of bubbles. ② Can cause most bubbles to circulate. |
| Level 9-10 | Suitable for strong mixing and stirring processes ① The specific gravity difference is large, and the mutual solution is evenly mixed. ② Mix high viscosity solutions evenly. ③ Intense fluctuations occur on the surface of low viscosity liquids. |
Suitable for completely uniform solid-liquid suspension stirring process. ① The particles are highly uniform in 98% liquid. ② The suspension can overflow and be discharged. |
Suitable for common gas-liquid dispersion processes ① It can increase the surface area of bubbles to a maximum extent. ② Can generate recirculation of all bubbles. |
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