Fly ash conveying is one of the energy industry's most demanding materials handling tasks. The fine, abrasive and often high-temperature material places constant strain on equipment, and with the wrong system selection, maintenance costs quickly spiral out of control.
If fly ash transport causes repeated shutdowns, replacement of wearing parts or dust problems, the issue is not with the material, but with the system. Explore pneumatic conveying solutions and see how a properly sized system changes the situation.
Maintenance costs under control with the right system choice
Pneumatic conveyance of fly ash is a technically demanding entity. The material is fine-grained, it causes wear on pipelines and components, and process conditions vary. Under these conditions, the sizing of the system directly determines how much time and money is spent on maintenance.
The most common sources of maintenance costs in the transport of fly ash are:
- Excessive material velocity in the pipework, which wears out pipes and valves prematurely
- An incorrectly chosen transport principle that does not suit the properties of the material
- Inadequate compaction causing dust nuisances and material waste
- Components that are not designed to withstand the abrasiveness of fly ash
Dense phase pneumatic conveying solves many of these problems. As the material moves through the pipeline at a low velocity in large slugs, mechanical stress is significantly reduced. The service life of wearing parts increases, maintenance intervals become longer and unexpected downtime becomes less frequent.
Dilute-phase transport is suitable for certain materials and shorter transfer distances, but for fly ash it often means faster wear and a more frequent need for maintenance. Choosing the right transport method is not a straightforward decision, but is always based on the material properties, capacity requirements and the overall process.
A well-dimensioned pneumatic fly ash conveying system brings tangible benefits:
- A closed pipe system eliminates dust generation and improves occupational safety
- Automated operation reduces manual labour and human error
- Long transfer distances and elevation changes are achieved without mechanical intermediate stages
- A longer service life for components reduces spare parts costs
- Process continuity improves as unexpected downtime decreases
Kopari pneumatic systems for fly ash transfer
We have supplied pneumatic conveying systems to the energy and process industries for nearly 50 years. Our experience covers a wide range of demanding materials, and fly ash is one of the materials whose behaviour we thoroughly understand.
We prefer dense phase conveying whenever possible. In this method, compressed air fractures the material into smaller slugs, which travel through the pipeline to the receiving silo at a low velocity. The result is:
- Less wear and tear on piping and components
- Lower compressed air consumption compared to dilute-phase conveyance
- Lower operating and maintenance costs over the entire lifecycle
- Fully automated operation, which integrates with the plant's distributed control system (DCS)
Our systems consist of dome valves, pressure vessels, a fluidisation system, a control unit, piping and silo filters. We manufacture the most critical components, such as dome valves, ourselves, which guarantees quality control throughout the supply chain.
Our pneumatic conveyors can be used as both dense-phase plug and dilute-phase suspension conveyors with minor software modifications. This flexibility means that the same equipment adapts to changing process needs without major investment.
We continually test new materials in our in-house testing facility. This means that, prior to system sizing, we can verify how fly ash behaves under your specific process conditions. See our references and take a look at the kinds of projects we have delivered.
Every project is different. That is why we do not offer off-the-shelf package solutions; instead, we always size the system based on the properties of the material, the capacity requirement, and site-specific demands. Read more about pneumatic conveying and find out which solution best suits your process.
Get in touch, let's tailor a solution to your process needs
The transport of fly ash is not a problem that requires a one-size-fits-all solution. It is a challenge that requires a precise analysis of the material, the process and the conditions.
When you get in touch, we will go through your process requirements together. You will get a clear picture of what kind of pneumatic conveying system is suitable for your situation and what it means in terms of maintenance costs in the long term.
Kopar has designed and supplied pneumatic conveying systems for demanding industrial processes for decades. Our expertise is at your disposal right from your very first contact.
Contact us and tell us your process needs. Let's tailor a solution that reduces the maintenance burden and keeps production running.
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