AutomaticLimeDosing:PneumaticConveying,KarlstadSweden

Automatic Lime Dosing: Pneumatic Conveying, Karlstad Sweden

A Reliable European Pneumatic Conveying Solution for Automatic Lime Dosing

Keywords: pneumatic conveying case, European pneumatic conveying, automatic lime dosing pneumatic conveying

This article presents a representative pneumatic conveying case from Europe: the automatic lime dosing system installed in Karlstad, Sweden. The project was designed, manufactured and commissioned by Shandong Headpowder Engineering Co., Ltd., also known as headpowder. The system transports hydrated lime powder from a storage silo to a dosing unit and automatically delivers it into the process water treatment tank, ensuring stable water quality and precise pH control.

The Karlstad facility previously relied on manual lime powder feeding. Operators had to carry bags to the mixing tank and pour them in by hand. This was time-consuming, dusty, and led to inconsistent dosing. The pH of the treated water often fluctuated, causing quality problems and higher chemical costs. Lime dust also created an unsafe working environment. Therefore, the customer decided to adopt a modern automatic dosing system to improve productivity, safety, and water quality.

Headpowder provided a complete pneumatic conveying system. It consists of a steel silo with bag filter, a rotary feeder, a dense-phase pressure vessel, conveying pipeline, a dosing hopper, and a PLC-controlled screw feeder. The lime powder is discharged from the silo into the pressure vessel, where compressed air pushes it through the pipeline to the dosing hopper. Then the screw feeder meters the powder into the mixing tank according to the PLC-set dosage. The entire system is fully enclosed, so no dust leaks out.

The automatic control system is the heart of this European pneumatic conveying project. It includes a Siemens PLC, an HMI panel, pressure transmitters, level indicators, and motor drivers. When the dosing level drops below a set point, the PLC automatically refills the dosing hopper. The system records operational data such as conveying time, air pressure, and material consumption, which helps with remote monitoring and maintenance planning. This makes the process transparent and reliable.

After installation, the system was tested under full load. The dosing accuracy reached ±1%, fully satisfying the water treatment requirements. The conveying rate met the designed capacity, and the system operated smoothly without any pipe blockages. The customer in Karlstad was very satisfied. The system eliminated manual handling, improved dosing consistency, and reduced chemical consumption by nearly 15%. The working environment became much safer and cleaner, with zero visible dust emissions. This project became a benchmark in Scandinavia.

Shandong Headpowder Engineering Co., Ltd., abbreviated as headpowder, is a professional company based in Shandong, China. With over 15 years of experience, it specializes in pneumatic conveying, automatic dosing, weighing, and packaging systems. Headpowder offers complete solutions from design and manufacturing to installation and commissioning. The company has served many clients in Europe and other regions, providing durable systems that meet international standards.

For more details about this automatic lime dosing pneumatic conveying system, please contact headpowder. The company address is in Shandong, China. Sales manager Mr. Zhang is ready to answer your questions. You can reach him via WeChat at 15662777102. Headpowder welcomes clients around the world and looks forward to helping you achieve efficient powder handling.