PAC PAM dry powder dosing device for water purification

The main function of PAC PAM dry powder dosing device is to prepare stable and precise concentration of drug solution and automate the dosing to ensure the correct proportion of pharmaceuticals and water quality control.
It can not only improve the efficiency of water treatment and ensure the stability of water quality, but also effectively reduce manual intervention and operating costs, making it an indispensable equipment in the modern industrial water treatment system.

Process Principle

The polymer solution preparation process is graded step by step through multiple solution tanks to ensure sufficient reaction time and constant concentration in each solution tank. This avoids any unnecessary direct passage between the prefabricated solution tanks and the final solution tanks and ensures consistent quality and concentration of the solution.
Graded solution tanks: Pharmaceuticals are added to different solution tanks and dissolved in a sequential, step-by-step manner. Each solution tank guarantees a dissolution reaction time to avoid fluctuations in chemical concentration.
Liquid level monitoring: A liquid level meter is installed in the final solution tank to monitor changes in real time. When the level drops to “low level,” the motorized water inlet valve automatically opens to add water.
Dry Thrower Activation: A contact-type flow meter activates the dry thrower (dry powder dosing equipment) when water volume changes. The feeder adjusts powder amount according to water volume to keep concentration within the set range.
Stop cycle: Once the liquid level reaches “high level,” the process stops; the agitator continues operating to maintain uniform dissolution.
Note: Emulsion polymers dissolve faster than dry polymers, but complete “cooking” is recommended for optimal effect.

PAC PAM dry powder dosing device Features

1. Integrated design: Highly integrated structure, small footprint, easy installation and maintenance.
2. Full-automatic control: Automatic adjustment via control box for fully automated dosing.
3. Simple operation: Only requires connection of water source and power supply to run.
4. Efficient dissolution: Stainless steel integrated design achieves 100% dissolution effect.
5. Safe and stable: Reliable performance ensures continuous stable dosing.
6. Corrosion resistance: Media-contact parts use high-quality engineering plastics and stainless steel for excellent corrosion resistance.
7. Adaptable: Suitable for powder, fiber, hard-to-dissolve or caking materials, and liquid agents.
8. Prevents macromolecular chain breakage: Efficient stainless steel speed reducer mixer avoids breaking the polymer chains during dissolution, maintaining flocculation performance.

PAC PAM dry powder dosing device Standard configuration

1. Three-box solution tank: With three drain ports for easy cleaning and maintenance.
2. Mixer and metering pump: Two mixers for complete dissolution; one metering pump for precise dosing.
3. Water inlet combination: Includes pressure reducing valve, shut-off valve, etc. to control water flow.
4. Dry casting machine and hopper: For accurate powder addition into the solution tank.
5. Level switch and level meter: Monitors solution tank liquid level to prevent overfilling.
6. Control box: Integrated automation system regulating equipment operation.
7. Overflow port and dosage port: Ensures smooth liquid dosing.
8. Solenoid valve and flow meter: Controls liquid flow for accurate dosing.

PAC and PAM in Water Treatment

PAC (polymerized aluminum chloride): A widely used inorganic polymer coagulant in water and wastewater treatment, drinking water purification, etc. Polymer structure of aluminum ions and chlorides with strong flocculation effect, removing suspended solids, bacteria, heavy metal ions, and other pollutants.
PAC advantages:
– Strong flocculation, handles high turbidity water.
– Effective in different pH ranges.
– Produces large flocs for filtration and settling.
PAM (Polyacrylamide): An organic polymer flocculant for water treatment, industrial wastewater, mining, etc. Long molecular chain binds particulate matter to form flocs and settle suspended solids.
PAM types:
– Cationic PAM: Good for removal of organic matter, oil, heavy metals.
– Anionic PAM: Used for mining and paper wastewater.
– Non-ionic PAM: Suitable for neutral/mild water treatment.

PAC PAM dry powder dosing device Application Fields

1. Municipal water supply: Drinking water treatment to meet health standards.
2. Wastewater treatment: Purifies industrial/domestic wastewater, removes suspended solids and harmful substances.
3. Nuclear power, petroleum, chemical industry: Used in cooling and wastewater treatment for plants and enterprises.
4. Raw water treatment for thermal power generation: Pretreatment to prevent scaling and corrosion.
5. Wastewater treatment: Especially for flocculation, precipitation, and heavy metal ion removal.