In the fields of grain processing and feed production, the transportation of soybean pellets directly affects production efficiency and product quality. Traditional mechanical conveying methods often face issues such as high material crushing rates, frequent equipment blockages, and severe dust pollution, which brings dual pressures such as increased maintenance costs and raw material waste for enterprises. To address these industry pain points, Head Powder has launched a customized soybean pneumatic conveying system, which uses positive or negative pressure airflow to achieve sealed, efficient, and low-loss material transfer, helping companies optimize production processes.

Core pain points and challenges

During conveying, soybean pellets are prone to crushing due to collisions and compression, which affects the oil yield or protein content during subsequent processing. At the same time, dust on the surface of particles easily spreads in open environments, worsening the workshop environment and increasing safety hazards. Additionally, when the conveyor line is complex, traditional equipment is prone to pipe blockages and bridging, requiring frequent shutdowns and cleaning, which severely reduces production capacity.

Characteristics of soybean granular materials

Soybean pellets are elliptical bulk material, with a particle size of about 5~10 mm, a moisture content usually of 12%~14%, a smooth surface, and a small amount of dust. The material is fragile, moderately fluid, and easily sticks when wet, requiring high requirements for speed, pressure, and pipeline material during transportation. Reasonable control of airflow velocity and material-air ratio is key to reducing crushing rates and ensuring stable conveying.

Pneumatic conveying system for soybean pellets

The pneumatic conveying system for soybean pellets designed by Head Powder uses sealed pipeline conveying and can be configured with either positive pressure dense phase or negative pressure dilute phase solutions according to site conditions. The system consists of a feeding device, conveying pipelines, air source equipment, dust separation and removal device, and an automated control system. The feed end is evenly delivered to the material via a rotary feeder or Venturi tube. During conveying, pressure and flow are monitored in real time, and at the end, the cyclone separator and pulse bag dust collector complete gas-solid separation, achieving clean exhaust and material collection.

Solutions and advantages

To meet customers' needs for low crushing, no clogging, and less dust, this conveying system offers the following advantages:

• Low crushing design: By reasonably matching conveying speed and material suspension speed, and using elbow flow guidance and impact absorption structures, the soybean pellet crushing rate is kept at a relatively low industry level.
• Sealed with no leakage: Operates under either negative or positive pressure throughout the pipeline, preventing dust leakage, meeting environmental protection requirements, and preventing moisture or contamination of materials.
• Flexible adaptation: Customized routes such as straight, elevated, and branch conveyors can be provided according to workshop layouts to meet different height and distance requirements.
• Intelligent control: Integrates PLC and touchscreen to achieve one-touch start/stop, fault alarms, and automatic blockage clearance, reducing manual intervention and maintenance costs.

Leveraging years of pneumatic conveying experience, Head Powder provides soybean pellet processing enterprises with full-process services from design and equipment manufacturing to installation and commissioning. For detailed conveying parameters or customized solutions, please feel free to contact our technical team.