Flow of Bulk Solids from Silos Model FM 120

Flow of Bulk Solids from Silos Model FM 120

Sci-tech Flow of Bulk Solids from Silos Apparatus Model FM 120 provides a practical demonstration of the types of discharge from different silos: mass flow, funnel flow and arching. The type of discharge that occurs is dependent on the flow properties of the bulk solids, the silo geometry and the wall material.

The trainer includes two identically shaped silos with transparent front walls and different wall materials. The silos have a wedge-shaped discharge hopper whose inclination and width are adjustable.

The outflow behavior is characterized by the measured time, the weight of the bulk solids, the silo geometry and the observed discharge type.

Flour is recommended as additional bulk solid for the experiments with arching.

Optional ‘Sci-Cal’ Computer Control Software & Interface in ‘LabVIEW’.

Size: 80cm x 45cm x 90cm (LxWxH)
Weight: 45 kg

Item Description

Features

  • Adjustable silo geometry
  • Different types of discharge: mass flow, funnel flow and arching

Silos are used for the large-scale storage of a wide variety of bulk solids. The stored bulk solids are then seamlessly supplied to production processes. To achieve this goal, the silo has to be designed as a mass flow silo.

Sci-tech Flow of Bulk Solids from Silos Apparatus Model FM 120 provides a practical demonstration of the types of discharge from different silos: mass flow, funnel flow and arching. The type of discharge that occurs is dependent on the flow properties of the bulk solids, the silo geometry and the wall material.

The trainer includes two identically shaped silos with transparent front walls and different wall materials. The silos have a wedge-shaped discharge hopper whose inclination and width are adjustable.

The outflow behavior is characterized by the measured time, the weight of the bulk solids, the silo geometry and the observed discharge type. Flour is recommended as additional bulk solid for the experiments with arching.

Optional ‘Sci-Cal’ Computer Control Software & Interface in ‘LabVIEW’.

Technical Specifications

Specifications
1. Design of bulk solids silos using a ring shear tester
2. 1 ring-shaped shear cell to determine yield loci
3. 1 ring-shaped shear cell with sample of wall material to determine wall yield loci
4. Shearing of the bulk solid sample by motor rotation of the shear cell
5. Vertical loading of the sample via ring-shaped lid with weights
6. Force sensor to measure the shear forces
7. Vernier caliper gauge to measure the change in height and density of the bulk sample
8. Valuation software to determine the relevant bulk solid parameters

Technical Specifications
Shear cell
 sample volume: approx. 70cm3
 material: aluminum
Shear cell with sample of wall material
 sample volume: approx. 15cm3
 material: aluminum
Motor
 power consumption: max. 75W
 speed: 500…3000min-1
1 set of weights
 4x 500g
 2x 200g
 2x 100g
 2x 50g
Measuring ranges
 shear force: 0…40N
 balance: 0…1000g

 

‘Sci-Cal’ Computer Control Software & Interface in ‘LabVIEW’.

‘Sci-Cal’ software & hardware has been designed for use with more than 600 ‘Sci-tech’ trainers. ‘Sci-Cal’ comes in a module that can be fitted or mounted on the Sci-tech trainers very easily.

‘Sci-Cal’ box has 11 inches front HMI interactive panel, inside are i3 processor computer with it’s own hard drive & software processor with 16 to 32 analog and 16 to 32 digital signal data-loggers. The ‘LabVIEW’ processes the input signal with in-built data and formulae to tabulate results for the Sci-tech trainers.

‘Sci-Cal’ box has HDMI output for connection to a projector or an electronic whiteboard or a monitor.

‘Sci-Cal’ box has input ports for inputs from the Sci-tech trainer sensors.

‘Sci-Cal’ eliminates requirement of external computer.

Experiments:

  • How wall material and angle of the hopper walls affect the outflow time
  • Demonstrate typical discharge types in silos:
    • mass flow
    • funnel flow
    • arching
  • How flow properties affect outflow time and flow profiles
  • Comparison of different bulk solids
  • Review of the silo design used

Requirements
 Mains Power 220 – 240V @ 50Hz, 1Ph

Model Number

FM 120

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