Agitated Dispersion Tanks
Agitated dispersion tanks are mixing vessels designed to distribute one phase uniformly throughout another through high-intensity agitation. These vessels create stable dispersions of gases in liquids, solids in liquids, or immiscible liquids through appropriate impeller selection, power input, and mixing intensity to achieve required dispersion quality.
Why are Agitated Dispersion Tanks Needed?
Agitated dispersion tanks are essential for processes requiring uniform distribution of dispersed phases. Gas-liquid dispersions enhance mass transfer for reactions and aeration. Solid-liquid dispersions maintain particle suspension and prevent settling. Liquid-liquid dispersions create emulsions and enable extraction processes. Proper dispersion directly affects process efficiency and product quality.
Agitated Dispersion Tanks Applications
Common applications include:
- Gas sparging and absorption
- Pigment dispersion
- Emulsion preparation
- Catalyst suspension
- Particle wetting
- Flotation processes
Specifications and Characteristics
At Roben, Mfg, Inc., we offer comprehensive options including:
- Volumes from 50 gallons to 20,000+ gallons
- High-shear impeller options
- Gas sparging systems
- Baffled designs for dispersion
- Variable intensity control
Certifications and Standards
Our agitated vessels are designed and manufactured in accordance with stringent industry standards:
- ASME Boiler and Pressure Vessel Code: Pressure vessel design and fabrication
- FDA cGMP Guidelines: Pharmaceutical manufacturing compliance
- 3-A Sanitary Standards: Food and dairy equipment
- ISO 9001: Quality management system certification
- CE Marking: European compliance certification
- ATEX Directive: Explosive atmosphere certification where applicable
Frequently Asked Questions (FAQs)
What impellers are best for gas dispersion?
Rushton turbines are traditional gas dispersers, providing excellent bubble breakup and gas hold-up. Concave disc turbines offer improved gas handling capacity with reduced power draw. Multiple impeller stages improve gas distribution in tall vessels. Selection depends on gas flow rate, required mass transfer, and power constraints.
How do you maintain solids in suspension?
Solid suspension requires sufficient power input and appropriate impeller selection based on settling velocity and solid concentration. Axial flow impellers provide efficient suspension for fast-settling particles. Off-bottom suspension is verified through CFD analysis. We design for complete suspension, cloud height, and homogeneity as required.
Can dispersion tanks create stable emulsions?
Yes, we design dispersion tanks for emulsion formation using high-shear impellers, rotor-stator mixers, or inline homogenizers. Emulsion stability depends on droplet size, which is controlled by energy input and mixing intensity. We specify appropriate systems based on your emulsion stability requirements and process constraints.
Contact Roben, Mfg, Inc.
For more information about our agitated vessel solutions or to request a quote, please contact Roben, Mfg, Inc. today. Our experienced engineering team utilizes advanced CFD software to optimize agitator designs for your specific mixing requirements.
Phone: (732) 364-6000 | Email: sales@robenmfg.com
760 Vassar Ave, Lakewood, NJ 08701
