Discontinuous Dense Phase System for Fly Ash Conveying & Wet Ash Unloading System
Discontinuous Dense Phase System for Fly Ash Conveying & Wet Ash Unloading System
Project Overview
Macawber Engineering Systems India Pvt. Ltd successfully executed a complete fly ash handling and wet ash unloading system for an industrial ash handling application. The project scope included system design, equipment manufacturing, erection, commissioning, and automation integration for reliable fly ash conveying and wet ash evacuation.
The system was engineered to handle fly ash from multiple ESP fields and APH units using advanced dense phase pneumatic conveying technology. Three Ashveyors were installed to convey fly ash from three ESP fields through a common conveying pipeline, while a single Denseveyor handled ash from the APH line through a dedicated pipeline. Intermediate surge hoppers were provided for controlled storage and continuous feeding.
On the receiving side, Macawber designed and supplied a common fly ash silo equipped with fluidisation nozzles, a bin vent filter with a fan, and a complete wet ash conditioning arrangement. The conditioning system included a motorised knife-edge gate valve, rotary feeder, and twin-screw ash conditioner for safe unloading of conditioned ash into disposal trucks.
Why Dense Phase Pneumatic Conveying?
The handling systems for fly ash include problems like elevated temperatures, abrasion, dust production, and large conveyance distances. Traditional conveyance systems tend to cause significant wear, maintenance problems, and poor efficiency.
Macawber addressed these challenges using discontinuous dense-phase pneumatic conveying systems designed for controlled low-velocity material transfer. The use of Ashveyor and Denseveyor technology enabled efficient ash movement while significantly reducing pipeline erosion and minimising downtime.
The system also ensured enclosed and dust-free material transfer, improving operational cleanliness and reducing environmental impact within the plant.
Operational Advantages
The installed system delivered several operational and maintenance benefits for the plant.
1. Reduced Maintenance & Wear
Low-velocity dense phase conveying reduces wear and tear on pipelines, bends, and conveying equipment, resulting in longer equipment life and reduced maintenance requirements.
2. Improved Plant Cleanliness
The enclosed pneumatic conveying systems minimised ash spillage and controlled dust emissions during conveying and unloading operations.
3. Lower Operational Costs
Automation and optimised ash handling reduced labour dependency and lowered the cost associated with hiring bulkers and manual ash disposal activities.
4. Reliable System Performance
The complete system was engineered for stable operation with minimal downtime, ensuring uninterrupted handling of fly ash under demanding operating conditions.
5. SCADA-Based Automation
The project incorporated complete automation and SCADA control for improved process monitoring, operational control, and system reliability.
Project Outcome
The successful implementation of this discontinuous dense phase pneumatic conveying system enabled efficient and dependable fly ash conveying and wet ash unloading operations. By combining robust equipment design, automation, and application-specific engineering, Macawber delivered a reliable ash handling solution capable of operating under abrasive and high-temperature conditions with minimal operational challenges.
As an experienced ash handling company in India, Macawber continues to deliver customised pneumatic conveying systems designed for long-term industrial performance, operational safety, and reduced lifecycle costs.
Related Solutions
- Dense Phase Pneumatic Conveying Systems
- Fly Ash Handling Systems
- Wet Ash Conditioning Systems
- Pneumatic Conveying Systems for Abrasive Materials
- Industrial Ash Handling Solutions
Project Summary Table
The system was designed for handling fly ash with demanding conveying properties and elevated operating temperatures.
| Material | Fly Ash |
|---|---|
| Temperature | 150–200°C |
| Bulk Density | 650 kg/m³ |
| Particle Size | Below 100 Mesh |
| Characteristics | Free-flowing, abrasive, dusty, light and fluffy |
Because of the highly abrasive and dusty properties of fly ash, the project needed a sturdy, dense-phase pneumatic conveying system that could lessen pipeline wear, decrease material degradation, and maintain consistent conveying performance.
| System Parameters | APH Line | ESP Line |
|---|---|---|
| Number of Feed Points | 1 | 3 |
| Reception Point | Common Fly Ash Silo | Common Fly Ash Silo |
| Capacity | 150 kg/hr | 800 kg/hr |
| Horizontal Distance | 100 m | 100 m |
| Vertical Distance | 15 m | 15 m |
| Number of Bends | 5–6 | 5–6 |
- Dense phase pneumatic conveying vessels
- Surge hoppers for intermediate storage
- Common fly ash silo with fluidisation arrangement
- Bin vent filter and fan
- Motorised knife-edge gate valve
- Rotary feeder
- Twin screw ash conditioner
- Full automation and SCADA integration
Convey materials without any quality degradation with our highly efficient Dense Phase Pneumatic Conveying Systems.
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