Industrial Polymer Dosing Machine

polymer preparation unit description

Polymer preparation units are automated systems for the preparation of liquid or powdered polymers, designed for the fully automated dosing of polymer solutions.

The Polymer Dosing System can be used to batch flocculation aids for the preparation of ready-to-use polymer solutions. The design is optimized to ensure that the polymer maturation process is completed with minimal footprint.

Polymer preparation unit principle

The polymer preparation tank is divided into three chambers: dissolving (V1), maturing (V2) and storage (V3), interconnected by siphons that form a perfect flow between the chambers necessary for the formation of high
quality solution.

The dosed polyelectrolyte comes into contact with water. The water/polyelectrolyte mixture then drops into the tank below where the dissolving phase begins. In this first chamber V1, a slow agitator keeps the contents of the tank moving ensuring thorough homogenization of the solution. The siphon transfers the solution to the maturing chamber, V2, where another slow agitator keeps the solution uniform until maturing is complete. Then the solution is transferred to storage chamber V3 from where it can be transferred for use.

The level switches insta led in this final chamber control the automatic functions:
Max and normal level: when the solution reaches the maximum level, this switch stops the powder dosing unit / liquid polymer dosing pump and closes the water inlet solenoid valve. Whilst level is normal, the switch enables the dosing unit to function and opens the water solenoid valve.
Minimum level: when the solution fa ls to minimum levels and below, this switch stops the dosing pump and sets off an alarm indicator on the electrical control panel.
Overflow level: when the solution reaches the overflow point, this switch stops the powder dosing unit/ liquid polymer dosing pump and closes the water inlet solenoid valve preventing delivery of mixed polymer solution to the drain.

Polymer preparation unit model

Polymer preparation unit advantage

Lower Maintenance & Downtime: No moving parts in the mixing process along with the durable DFXa peristaltic or gamma/ XL diaphragm pump means fewer breakdowns and less frequent repairs.

More Efficient Polymer Usage: Venturi mixing & static mixer ensure optimal polymer activation, reducing chemical waste. Consistent dosing improves treatment efficiency, lowering operating costs.

Ease of Operation & Automation: Multiple control modes (Manual, Analog, Contact, Auxiliary) allow simple or advanced operation. 4-20 mA and alarm outputs enable remote monitoring and integration with SCADA/PLC systems.

Compact & Easy Installation: Lightweight and space-saving design allows easy integration into existing site locations without major modifications. Simple piping and electrical connections make setup fast and easy.

Reliable Performance: Handles various polymer types (emulsion, solution, low molecular weight). Works across a range of flow rates (60–600 GPH) and pressures (up to 100 PSIG).

Reduced Energy Consumption: Low-energy mixing minimizes power usage, leading to cost savings.

Safe & Operator-Friendly: No high-speed mechanical parts, reducing risk of injury. Designed for low-maintenance operation, allowing operators to focus on other tasks.

Polymer preparation unit feature

Consistent high-quality flocculant solution

The raw material dosing is linked to water flow to ensure that the final flocculant concentration remains constant.

Prevents unnecessary over-dosing

Dosing is linked to incoming waterflow.

Optimal design

Separate sections for make-up, maturation and solution storage.

Clot prevention

The end of the dosing auger is heated to prevent flocculant granulate from absorbing moisture from the air.

Convenient

The make-up parameters can be set in the control panel.

Polymer preparation unit application

The use of polymers or floculants considerably improves the separation process between the solid/liquid phases for applications in:

Water treatment: Flocculation of industrial and drinking water

Wastewater treatment: Physico-chemical treatment

Sludge treatment: Centrifuges, filter press to improve dewatering

Paper industry: retention agent

Various other industries: chemical, petrochemical, quarry, etc.

These flocculants, in powder and emulsion form, are very high molecular weight polymers. To ensure efficiency of the separation process, the preparation of the dilute polymer solution (2 to 5 g/l) is critical. The POLYPACK® unit employs rigourous technical standards and features which ensure optimum and consistent flocculant preparation.

Contact us for customized polymer preparation unit solutions

If you are interested in learning more about our polymer preparation unit or need a customized solution for your water treatment project, please contact our sales team. Our experts will work with you to assess your requirements and recommend the perfect equipment to meet your goals.