Odessa,Ukraine:ClosedPneumaticConveyingofRubberPowder

Odessa, Ukraine: Closed Pneumatic Conveying of Rubber Powder – A Complete Industrial Case Study. This article focuses on a recently completed closed pneumatic conveying project for rubber powder in Odessa, Ukraine, highlighting how advanced air-based conveying technology can safely and efficiently handle fine, abrasive, and potentially hazardous bulk materials. The project is a notable example of Eastern European pneumatic conveying application, combining robust engineering design with strict environmental and safety standards. Throughout this case study, we examine the technical challenges, the selected system configuration, the key equipment involved, and the operational benefits realized by the customer.

Rubber powder, often produced from recycled tires and industrial rubber waste, presents unique handling difficulties. It is typically characterized by low bulk density, irregular particle shapes, and a tendency to generate dust. In addition, when rubber powder is transported through conventional mechanical conveyors, it can easily degrade, clog, or cause excessive wear. More importantly, open handling systems create dust emissions that pose serious health and explosion risks. In Odessa, a major industrial and port city on the Black Sea coast, the local manufacturer needed a reliable and completely enclosed solution to transfer rubber powder from a milling station to storage silos and further to the packaging line. The customer approached Shandong Headpowder Engineering Co., Ltd. – also known as Headpowder – to design and supply a turnkey pneumatic conveying system.

Headpowder is a specialized engineering company headquartered in Shandong, China, with extensive experience in dense-phase and dilute-phase pneumatic conveying for powders, granules, and hybrid materials. For this Odessa project, the company’s engineers proposed a closed-loop, pressure-driven dense-phase conveying system. This approach was selected because it uses high-pressure air to push rubber powder through a pipeline in slugs or plugs, minimizing air velocity, reducing particle degradation, and dramatically lowering pipe wear. Furthermore, the entire system is fully sealed, ensuring that no rubber dust escapes into the plant atmosphere. This design aligns perfectly with the strict environmental regulations in Ukraine and the EU directives that many Ukrainian industries already follow.

The core of the installation includes a pressure vessel type feeder, a Roots blower pack, a complete pipe network with wear-resistant bends, a set of reverse-jet filters, and a fully automated PLC control system. The rubber powder is loaded into the pressure vessel through a rotary valve from the upstream milling equipment. Once the vessel reaches its preset filling level, the inlet valve closes and compressed air is introduced into the top of the vessel. The differential pressure forces the material out through the discharge nozzle and into the conveying pipeline. The pipeline is designed with a smooth interior and special low-radius abrasion-resistant elbows to ensure material flow without blockages, especially given the mildly elastic and cohesive nature of rubber particles. At the receiving end, a specially designed cyclone separator followed by a bag filter achieves a separation efficiency higher than 99.9 percent.

One of the biggest challenges in the Odessa installation was the external climate. The plant is located near the Black Sea, where humidity can be high and winter temperatures can drop significantly. To prevent condensation inside the conveying line and the filters, Headpowder engineers equipped the system with proper thermal insulation and a downstream drying unit for the compressed air. Additionally, all instruments, valves, and the blower were selected to operate reliably in ambient temperatures ranging from minus 25 degrees Celsius to plus 40 degrees Celsius. This made the system robust for year-round operation in the Ukrainian coastal environment. The PLC control system was also customized to display alarms in both English and Russian, which significantly helped the local maintenance team.

The project was completed and commissioned within the agreed schedule. After installation, Headpowder provided on-site supervision and remote technical support. The performance of the closed pneumatic conveying system exceeded the customer’s expectations in several key areas. First, the conveying capacity reached 8 tons per hour, which was 15 percent higher than the originally required throughput. Second, the system consistently maintained a material-to-air ratio that lowered energy consumption per ton of rubber powder by approximately 20 percent compared to the customer’s previous mechanical conveyor. Third, the plant environment achieved a dust-free status, with ambient dust concentration measured below 1 mg per cubic meter, well within the strictest hygiene standards. The customer also appreciated the low maintenance requirements, because the dense-phase conveying mode reduced abrasive wear on pipes and fittings, and the filters automatically cleaned themselves using compressed air pulses.

From a safety perspective, the design included multiple protective measures. The system is equipped with pressure relief valves, emergency stop switches, and a nitrogen purge connection for possible uses with extremely fine or static-prone powder. However, because rubber powder can generate static electricity during transport, grounding straps were installed at every flange joint, and all flexible connections were anti-static. Special attention was paid to the grounding of the filter housing and the storage silo, which prevented any possibility of spark discharge. Furthermore, the control system monitors line pressure, differential pressure across the filters, and the temperature of the blower, and automatically shuts down the conveying process if any abnormal condition is detected. This comprehensive safety package ensured full compliance with ATEX-style requirements for classified dust zones, even though the customer’s facility was not formally certified.

This Odessa rubber powder conveying project has become a prominent reference case for Headpowder in the Eastern European market. It demonstrates the advantages of closed pneumatic conveying in terms of environmental protection, product quality preservation, and operational efficiency. The company’s experience in this region has also helped adapt its equipment to local standards, transformer voltages, and common industrial practices. Since the successful start-up, several other rubber processing and tire recycling companies in Ukraine, Poland, and Lithuania have expressed interest in similar systems. Headpowder has been able to respond quickly to these inquiries, offering customized solutions based on the proven Odessa design. The company’s reputation as a reliable partner for bulk solids handling continues to grow in Eastern Europe.

For all projects, Shandong Headpowder Engineering Co., Ltd. provides comprehensive engineering services including process design, equipment manufacturing, factory acceptance testing, installation supervision, commissioning, and operator training. The company is located in Shandong, China, but serves clients across the world. For inquiries about rubber powder conveying or other powder handling systems, please contact the sales manager, Mr. Zhang, directly via WeChat at 15662777102. Headpowder welcomes both small-scale tests and large-scale industrial projects. Whether you need to convey rubber powder, carbon black, calcium carbonate, cement, fly ash, food ingredients, or any other granular or powdery material, Headpowder can design a closed pneumatic conveying system that meets your specific needs while respecting safety, environmental, and economic requirements. The Odessa, Ukraine project is just one example of how international cooperation and advanced engineering can produce a world-class material handling solution.