Mobile Polymer Dosing Trailer

polymer preparation unit description

Automatic Polymer Preparation Unit, also know for Polymer Dosing Unit (PDU), someone like to call it: Powder Dispensing Dissolver get below: 

Fully automatic operation including automatic dosing, dissolving and feeding.

The highly precise dry polymer dosing device and the well-designed heater device can prevent the polymer from caking.

The dosage of dry powder and water can be adjustable, so the solution with any concentration can be prepared.

Optional: Vacuum feeding machine.

5-Optional: on-line dilution system.

Tank material: SS304 or SS316l, Polypropylene PP, FRP etc

Accept DIY customization, no MOQ limit.

Polymer preparation unit principle

The automatic dosing machine is widely used in the waste water treatment, it can mix the compounds continuously and effectively, so the reactive polymer solution appears. These main components of the machine: Polymer feed machine (including material hopper), Dry powder infiltration device, Tank, Level controller, Mixer, Dosage water inlet pipe, Electric control panel

1. Polymer dosing device 
Polymer dosing device is composed of hopper, push screw, electric heater and etc. The effective volume of the hopper can meet the dosage for a long time which is equipped with sight glasses for observing material level monitored by the dry powder level meter. The push screw driven by the high-precision reducer can satisfy the dosage. The electric heater can be installed in the discharge pipe of push screw, and it can prevent the powder from caking.

2. Polymer dissolving device
Polymer dissolving device is composed of pre-soaking device, tank, and 3 sets of mixers. The pre-soaking device is to infiltrate and mix the polymer powder in advance. The 3 tanks are precast mixing tank, homogeneous slaking tank and solution storage tank, in which there is a mixer correspond to guarantee the homogeneity.

3. Water supply device
Water supply device is composed of pipeline, manual ball valve, filter, pressure gauge, solenoid valve, stop valve, and the rotor flow meter, etc.

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

An automatic water supply system comprising a shut-off valve, filter, safety pressure switch, pressure gauge, pressure reducer valve, solenoid valve, water meter with pulses, control valve, flow meter (with flow switch for minimum level flow rate) and special dispensing nozzle (for units that work with powder polymers).

Tanks made entirely in PPH, with inspection covers and emptying valves for each chamber.

Customized mixers, optimized to ensure a homogeneous mixture, are made of stainless steel.

Batching screw made entirely of stainless steel, with batching adjustment managed using a precise speed regulator.

Electrical protection and control panel, with built-in buttons and controls or touchscreen panel, designed for manual/automatic operationand equipped with emergency stop and wiring to a l system components.

Conductivity level probes for high, low and very low levels with emergency light warning.

Separate safety level switch for overflow levels (General Fault alarm warning).

Polymer preparation unit application

Using polymers and flocculants considerably facilitates the processes of removing particles and solids suspended in liquid in the fo lowing applications:

Treating potable and industrial processing water

Purifying waste water

Treating sludge, in order to improve the performance of centrifuges and filter presses

Processes for the paper, chemical, petrochemical, mineral processing, canning industries

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.