Products Description
Need to transfer large volumes of powder or granules over long distances?
Guanjiang's Positive Pressure Dilute-Phase Pneumatic Conveying System uses a Roots blower or high-pressure centrifugal fan to push materials through pipelines at high velocity. Achieve up to 40 T/h throughput over 500 meters horizontally or 45 meters vertically. Ideal for high-capacity, long-distance material handling with multi-point discharge capability — from one source to multiple silos or processing lines.
Key Performance Features
Capable of conveying materials up to 500 meters horizontally and 45 meters vertically — ideal for connecting distant storage silos to production lines.
Optimized for large-scale operations with maximum capacity of 40 Tons per hour. Continuous or intermittent operation available.
Easily configured to deliver materials from one source to multiple silos or processing lines — using diverter valves or rotary distributors.
Operating pressure < 0.1 MPa ensures safe, reliable continuous material flow. Low system pressure reduces maintenance and leak risks.
Technical Specifications
| Parameter | Standard Range |
|---|---|
| Conveying Capacity | < 40 T/h (customizable to higher capacities) |
| Max. Conveying Distance | ≤ 500 m horizontal / ≤ 45 m vertical |
| Operating Pressure | < 0.1 MPa (positive pressure) |
| Solid-Gas Ratio (μ) | 2 – 10 (dilute phase) |
| Operating Temperature | -20°C to 150°C (material dependent) |
| Power Source | Roots blower / High-pressure centrifugal fan |
| Pipeline Diameter | DN50 ~ DN300 (customizable) |
| Material of Construction | Carbon steel / Stainless steel SUS304 / 316L |
System Components:
Standard package includes: Roots blower (or centrifugal fan) with silencer, rotary feeder / venturi injector, pipeline network (carbon steel or stainless steel), diverter valves, cyclone separator or dust collector, and PLC control panel.
Optional add-ons: Material cooling/heating system, weighing hopper, magnetic separator, metal detector, and ATEX-rated components for explosive environments.
Pneumatic Conveying FAQs
Q1: When should I choose positive pressure over vacuum conveying?
A: Positive pressure systems are superior for long distances (>50m) and high capacities (>10 T/h), or when you need to distribute material from one source to many destinations. Vacuum systems are better for short distances, multiple pickup points, or when you need to draw material from open containers.
Q2: What materials are best suited for dilute-phase conveying?
A: Dilute-phase is ideal for non-abrasive, light-weight powders and granules such as: plastic pellets (PE, PP, PVC), flour, sugar, starch, coffee beans, rice, chemical powders (pigments, resin powders, fertilizers), and cement. Not recommended for fragile materials (high velocity may cause degradation).
Q3: Can the system be used for multiple discharge points?
A: Yes. Positive pressure systems excel at multi-point discharge. We integrate diverter valves (2-way, 3-way, or 4-way) or rotary distributors to route material to different silos, hoppers, or processing lines. Each discharge point can have its own dust collection and level control.
Q4: How do you prevent pipeline blockages?
A: Blockage prevention measures include: proper air velocity design (minimum saltation velocity), automatic blowback system, pressure sensors with alarms, and Roots blower with variable frequency drive for velocity adjustment. For sticky materials, we recommend air cannons or purge connections at critical points.
Q5: What are the typical power requirements for a Roots blower system?
A: Power depends on required capacity and distance. Typical range: 7.5 kW to 250 kW. For example, 15 T/h over 200m requires approximately 37-45 kW. We provide a full power calculation based on your specific parameters.
Need a high-capacity, long-distance pneumatic conveying solution?
Request a Quote → Download Datasheet (PDF)* Please provide your required throughput (T/h), conveying distance, material type, and number of discharge points for a fast, accurate quotation.
