KamengoU is a library of videos and whitepapers geared to teaching designers and engineers the physics and theory governing good bin and feeder design. We want you to understand the “why” behind your problem so that you can understand the “why” behind our solution. 

Module 1-1 | Why bins Plug

  • The three root causes of bin plugging: 1) poor bin geometry, 2) compaction by the feeder, and 3) uneven discharge.
  • Material flow properties and good bin geometry in plain English.
  • Mass flow and funnel flow
  • Effective discharge area

1-1

Module 1-2 | The Six Decisions of Good Bin
and Feeder Design

Six key design decisions to ensure your storage bin can discharge using gravity:
  • Flow pattern
  • Bin shape
  • Discharge outlet
  • Angle of sloping walls
  • Liner on sloping walls
  • Effective discharge area

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Module 1-3 | The Kamengo Feeder

COMING SOON

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Module 1-4 | Kamengo Whitepaper: Design of Reliable Bins and Feeders

COMING SOON

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Module 1-5 | Kamengo Labs Part I

Bench-scale Material Flow Testing
COMING SOON

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Module 1-6 | Kamengo Labs Part II

AT-SCALE TESTING
COMING SOON

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Module 2-1 | The Physics of Flow Patterns

  • How gravity and friction determine a bulk solid’s flow pattern during discharge.
  • Mass flow and funnel flow

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Module 2-2 | Designing for Mass Flow: Bin Angle

  • Determining the minimum bin wall angle to achieve a mass flow discharge pattern
  • Wall friction angle
  • The role of the shape of the bin

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Module 2-3 | Designing for Mass Flow: Discharge Outlet

  • The Bridging Dimension: the minimum discharge outlet needed to ensure that the force supplied by gravity is sufficient to prevent chronic bridging over the feeder
  • Effective discharge area and the importance of a “fully-effective” Feeder.

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Module 2-4 | Designing for Funnel Flow When Handling a Difficult Flowing Material

  • The Piping Dimension: the minimum discharge outlet needed to ensure that the force supplied by gravity is sufficient to prevent chronic rat-holing over the feeder.
  • Effective discharge area and long and wide openings

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Module 2-5 | Strengths and Weaknesses of Mass Flow and Funnel Flow

  • Shallow storage bin
  • Lower bin wall pressures
  • Natural liner
  • First-in, last-out flow pattern
  • Minimum effective discharge outlet can be very big
  • Need to fully empty on a regular basis Mass Flow:
  • First-in, first-out discharge
  • Minimum discharge outlet is reasonable
  • Taller bin with higher bin wall pressures and more abrasion along bin walls
  • More expensive
  • Require a fully-effective discharge outlet

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Module 2-6 | Effective Discharge Area and Minimum Outlet

  • Material compacts into arches as it descends down a converging storage bin
  • The arch over the Feeder is both the weakest but also the most susceptible to becoming stable – which results in bridging over the Feeder.
  • The span of the arch: ensuring gravity will reliably keep material flowing
  • Effective outlet / effective discharge area and the behavior of the Feeder

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Module 2-7 | Effective Discharge Area and Mass Flow

  • If the discharge outlet of the storage bin is not fully effective, you will not get mass flow, why?
  • As soon as you interrupt the flow of material from any part of the discharge outlet, the flow pattern switches to funnel flow regardless of the bin geometry.

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Module 3-1 | Expanded Flow

  • Combining mass flow and funnel flow to design large storage tall bins and pile reclaim systems

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Module 3-2 | Material Flow Testing: Determining Minimum Angle for Mass Flow

  • Wall Friction Test
  • COMING SOON

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Module 3-3 | Material Flow Testing: Determining Minimum Discharge Outlet

  • Shear Test, Aperture Test and Bulk Density Test
  • COMING SOON

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Module 3-4 | Material Flow Testing: Determining Chute Angles

  • SLIDE ANGLE TEST
  • COMING SOON

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Module 3-5 | At-scale testing: overcoming the limits of material bench scale testing

  • Material flow testing does not always show the most cost-effective bin geometry for handling a bulk solid. At-scale testing is a useful tool to fill this gap.
  • COMING SOON

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Module 3-6 | Feeder loads

  • Fill load
  • Flow load
  • COMING SOON

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COMING SOON