Technical Specifications

Specifications
1. Investigation of the outflow of bulk solids from silos with wedge-shaped discharge hoppers
2. Demonstration of arching, mass flow and funnel flow with different bulk solids
3. Two silos with different hopper wall materials
4. Front walls of the silo made of transparent material
5. Silos can be removed for cleaning
6. Angle of the hopper wall adjustable while retaining constant outlet cross-section
7. Tamper for compacting the bulk solids
8. Stopwatch for determining outflow times
9. Practical review of the design results from Sci-tech Flow properties of bulk solids apparatus.

Technical Specifications
2 silos with wedge-shaped hopper
 base body cross-section: 200x200mm
 wide outlet 10…70mm
 height of silo section: approx 300mm
 height of hopper: approx. 50…140mm
 volumes: approx. 14…18L
2 bulk solids
 plastic granulate: 2…5mm
 spelt husks: 5…15mm
Balance
 with tare function
 up to 10kg
Stopwatch
 0…10h

Experiments:
 how wall material and angle of the hopper walls affect the outflow time
 demonstrate typical discharge types in silos:
o mass flow
o funnel flow
o arching
 how flow properties affect outflow time and flow profiles
 comparison of different bulk solids
 review of the silo design used in CE 200

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