BattambangCalciumCarbonatePneumaticConveyingProject

The Battambang Calcium Carbonate Pneumatic Conveying Project is a representative pneumatic conveying case in Southeast Asia. The project uses positive pressure pneumatic conveying technology to transfer calcium carbonate powder smoothly and safely at a production plant in Battambang, Cambodia. This system was designed and built by Shandong Headpowder Engineering Co., Ltd., also known as headpowder, headquartered in Shandong, China. The scope of supply covered the entire conveying line, including feeding devices, pipeline, dust collection, control system, and receiving silos.

The customer, a calcium carbonate manufacturer in Battambang, previously relied on mechanical conveyors such as screw conveyors and bucket elevators. These traditional methods caused dust leakage, material loss, and high maintenance costs. The fine powder was difficult to handle because it floated in the air and settled on equipment. To protect workers and ensure product quality, the customer needed a totally enclosed conveying system that could transport the powder from a central storage point to multiple processing lines without contamination. Therefore, headpowder was invited to provide a professional pneumatic conveying solution.

After a detailed material analysis and site survey, headpowder proposed a positive pressure pneumatic conveying system. A Roots blower supplies compressed air into the pipeline, and a rotary airlock feeder accurately meters calcium carbonate powder into the air stream. The high-speed air carries the powder to target receiving hoppers. Positive pressure conveying is ideal here because it can distribute powder from one feed point to several destinations, simplifying plant layout and reducing the number of blowers. The designed capacity is 15 tons per hour, and the total conveying distance is 180 meters with a vertical lift of 25 meters.

Several technical challenges were solved. Calcium carbonate is abrasive, so the pipeline at high-wear zones adopted wear-resistant elbows and thicker wall pipes. The climate in Cambodia is hot and humid, which could cause the powder to form lumps. To prevent this, a refrigerated air dryer was installed to keep the conveying air at a low dew point. Airtight silos and purge devices minimized the ingress of humid air. The PLC control panel allowed operators to set feeding speed, monitor pressure, and receive alarms in case of blockage, ensuring reliable and stable operation.

The complete equipment package included a storage hopper, slide valve, rotary airlock feeder, Roots blower, silencer, pressure sensor, conveying pipeline, diverter valves, baghouse dust collectors, level sensors, and a PLC-based control system. During commissioning, the system achieved stable conveying performance with no pipe clogging or dust leakage at any receiving hopper. The two-phase mixture was conveyed smoothly at the set pressure, and the actual output met the design capacity. The system also operated quietly thanks to the silencer installed on the blower outlet.

The new conveying system delivered remarkable benefits. Dust emission was fully eliminated because all materials were handled in a sealed pipe. This created a cleaner, safer working environment for the plant employees. The automated operation reduced manual labour and improved material metering accuracy. The wear-resistant design lowered maintenance costs, and the efficient single-blower arrangement reduced energy consumption. Additionally, the modular design allows future expansion to extra receiving silos without major modification, providing flexibility for the customer’s business growth.

Shandong Headpowder Engineering Co., Ltd. is a professional engineering company in China that specializes in pneumatic conveying systems for powders, granules, and other bulk materials. The company provides turnkey services from design and manufacturing to installation and commissioning. Manager Zhang, who is based at the headquarter in Shandong, is ready to answer inquiries regarding the Battambang Calcium Carbonate Pneumatic Conveying Project or any other conveying application. For direct contact, WeChat: 15662777102. headpowder is committed to supplying cost-effective and environmentally friendly conveying solutions to clients throughout Southeast Asia and worldwide.