At Paterson & Cooke, we understand the challenges of designing reliable slurry transport systems. That’s why our UK office has developed an innovative pipe loop, specifically designed to visually demonstrate the behaviour of settling slurries during pipeline flow.
This demo loop, highlighted in the video below, offers a hands-on educational tool for understanding how solid particles in a slurry mixture behave under different conditions. By using a safe mix of water and coloured beads, we effectively simulate slurry dynamics that can be seen in a translucent pipe, without the operational challenges of working with actual slurry samples.
Understanding Slurry Flow – Why it Matters
The flow behaviour of a settling slurry is determined by the need for turbulence to lift and suspend solid particles, allowing them to be transported through pipes by the flowing fluid mixture. Understanding the applicable friction loss model is crucial for designing efficient and reliable slurry transport systems. Whether transporting in horizontal, vertical, or inclined pipeline orientations, engineers must understand the design challenges such as particle settling, allowable slopes, resuspension after an unplanned shutdown, and flow disturbances for piping selection.
The demo loop demonstrates key slurry dynamics, including:
- Steady-state flow across different pipe diameters
- Variable flow velocity and its impact on particle behaviour
- Settling Slurry Flow Regimes from a stationary bed with no solids movement to a fully suspended flow
Features of Our Slurry Pipeline Demo Loop
This tool is designed to mimic real-world conditions with:
- Horizontal, vertical (upward and downward), and inclined sections to explore how pipe orientation affects slurry flow
- Bends of varying angles (90°, 45°) that highlight minor head loss in flow patterns
- A centrifugal pump with variable speed for controlling flow rate and simulating a range of operating conditions
Using translucent pipes in various sizes, and coloured beads in clear water, we can clearly observe phenomena such as:
- Deposition velocity for various pipe sizes
- Stationary bed and part stationary bed particle behaviour
- Resuspension after a shutdown of the demo loop
- Minor head loss turbulence at various pipe bends
Advancing Education in Slurry Transport
This demo tool will feature prominently in our upcoming courses, conferences, training sessions, and lectures. It is an essential resource for anyone involved in slurry pipelines, or who is seeking to understand the complexities of slurry flow.
