Liquid Mixing Tanks

Homogeneous Mixing. Consistent Product Quality

VOLDE Liquid Mixing Tanks are integrated tank and agitator systems engineered for the controlled, homogeneous and repeatable processing of liquids and liquid-solid mixtures. Typically designed for small to medium batch volumes of up to 10 m³, each system combines tank geometry, agitator configuration and process parameters within a single engineered solution. Agitator type, impeller geometry, speed and power are selected according to product characteristics and mixing requirements to ensure reliable mixing performance and consistent product quality.

| Purpose of Mixing

Mixing is more than simply combining two liquids. Depending on the application, the objective may be to maintain continuous product movement, prevent sedimentation or phase separation, disperse solids uniformly within the liquid phase, or maintain consistent product properties throughout the process.

VOLDE defines the appropriate mixing principle for each application based on the required process outcome. The first step in engineering a mixing tank is therefore to clearly establish the mixing objective:

• Maintaining continuous circulation throughout the tank
• Preventing sedimentation and phase separation
• Dispersing powders or granules into liquids while minimizing agglomeration
• Achieving a smooth and homogeneous mixture
• Maintaining uniform temperature throughout the tank volume during heating
• Providing stable process conditions for reaction or holding applications

Based on these requirements, the agitator type, impeller geometry, rotational speed and drive power are individually selected and engineered. This application-specific approach ensures efficient power utilization, reliable mixing performance and consistent process results.

| Tank Construction & Temperature Control

Materials of Construction & Surface Finish

• AISI 304 or AISI 316 stainless steel
• Carbon steel construction
• Hygienic surface finishes for food applications
• Epoxy or chemical-resistant internal coatings
• Application-specific surface treatment and material selection

Heating & Cooling Options

• Jacketed tank construction for heating or cooling
• Internal heating or cooling coils
• Thermal insulation
• Steam, hot water or cooling water connections
• Temperature measurement and control instrumentation

Heating and cooling systems are engineered according to the product properties and process temperature requirements, helping maintain uniform temperature throughout the tank while supporting consistent mixing performance and product quality.

| Agitator & Impeller Options

_ Pitched Blade Impeller

Generates strong axial flow for rapid circulation throughout the tank, providing efficient blending and homogenization of low- to medium-viscosity liquids.

_ Propeller

Provides high axial-flow performance for rapid circulation and blending. Blade geometry, speed and diameter are selected according to product properties, flow requirements and required shear level.

_ Turbine Impeller

Generates higher shear for effective dispersion and homogenization in liquid–liquid and solid–liquid applications, with the configuration selected according to the required mixing duty.

_ Anchor Agitator

Designed for high-viscosity products, the anchor sweeps close to the tank wall to minimize stagnant zones and promote uniform mixing throughout the vessel.

| Process Connections & Automation Integration

Liquid mixing tanks are engineered for seamless integration with upstream and downstream process equipment, instrumentation and plant automation systems.

• Product inlet and outlet connections
• Dosing and feeding connections
• Sampling points
• Level measurement systems
• Load cell weighing for accurate batch control
• Temperature measurement and monitoring
• PLC & SCADA integration

Mixing time, agitator speed, dosing sequences and product recipes can be automatically controlled and monitored through the plant automation system, ensuring repeatable process conditions and consistent batch quality.