1. Machines and Devices of Logistics - Thematics
Forklifts II.
Automated guided vehicles
with presentation in the labor
Overhead cranes
Overhead conveyors and monorail systems
Test 2
Capacity analysis of complex materials handling systems
Modeling possibilities of manufacturing logistic processes
Graphs
Petri-nets
SysML Modeling language
Simulation software (ált)
Test 3
Building and analyzing material flow in logistic systems (capacity, stocks, bottlenecks etc. using Simul8)
Classification of the transported goods and main classes of materials handling machines
Machines for handling bulk materials
Belt conveyors
Bucket elevators
Screw conveyors
Roller conveyors
Presentation of the conveyors at the department
Practice for the test 1
Test 1
Machines for handling unit loads
Containers for material handling
Types of unit loads inside manufacturing systems
Forklifts I.

2. Requirements on timing and relations
Definition of materials handling
Organized motion of goods and materials which covers shorter distances and the state of the transported object doesn’t change.
In a typical factory, MH accounts for 24% of all employees, 55% of the space, and 87% of the production time.
It accounts for between 15% to 70% of the cost of a product.
Relation of materials handling and logistics
Requirements on timing and relations
Materials handling
Logistics
Provision of materials’ transport services

3. Classification of transported goods
Transported materials
Piece-goods
Bulk materials
In natural form
In loading units
Gases
Liquids
Solid bulk materials

4. Classification of materials-handling machines
Continuous operating materials handling machines
Discontinuous operating materials handling machines
Materials-handling machines
Lifting machines
Auxiliary devices
Transporting machines
Loading machines

5. Classification of materials-handling machines
Conveyors
Chute conveyor
Wheel conveyor
Roller conveyor
Chain conveyor
Slat conveyor
Flat belt conveyor
Magnetic belt conveyor
Troughed belt conveyor
Bucket elevator
Vibrating conveyor
Other equipment
Cranes
Jib crane
Bridge crane
Gantry crane
Stacker crane
Tower crane
Mobile crane
Industrial trucks
Hand truck
Pallet jack
Walkie stacker
Counterbalanced lift truck
Reach stacker
Turret truck
Order picker
Sideloader
Tractor-trailer
Automatic guided vehicle (AGV)
Screw conveyor
Pneumatic conveyor
Vertical conveyor
Cart-on-track conveyor
Tow conveyor
Trolley conveyor
Power-and-free conveyor
Monorail
Sortation conveyor

6. Materials handling related features of solid bulk materials
typically homogeneous materials
transport and loading in greater masses, without packaging
Materials handling related features of solid bulk materials:
grain size (average, max, min)
grain-size distribution
bulk-density
friction coefficient on solid surfaces
moisture content
cohesion
friability (fragile)
flowability
abrasiveness
corrosiveness
temperature
frozen
health-threatening

7. Materials handling related features of solid bulk materials
Examples :
Ashes: abrasive when dry, corrosive when wet
Charcoal: dusty (explosive dusts)
Cement: entrains air, compacts in storage, must not contact with moisture
Grass seed: gentle handling
Sulphur: danger from static sparks, risk of ignition, corrosive when wet
Iron ore: may be in large fragments
Wheat: hygienic conditions

8. Materials handling related features of solid bulk materials
Grain-size distribution diagram

9. Materials handling machines for handling solid bulk materials
Choice of equipment
1. Type of conveyor or elevator
2. Material transfer
3. Profile
4. Material properties
Effect of the height difference for the choice of the equipment

10. Materials handling machines for handling solid bulk materials

11. Belt conveyors
General features

12. Belt conveyors
Components and construction

13. Belt conveyors
Typical arrangements

14. Belt conveyors
Typical arrangements

15. Belt conveyors Calculating capacity for a belt conveyor
Capacity reduction coeff.
Inclination coeff.
Loading coeff.

16. Belt conveyors Driving of a belt conveyor Max. circumferential force
at the drum
Required tensioning force
Max. belt force
Possibilities of increasing arc of contact

17. Belt conveyors Comparison of tensioning force Head side driven
Tail side driven

18. Belt conveyors Dual-drum driving system Dual-drum driving system
Ratio of the required torques at the
two drums:

19. Belt conveyors Calculation of the required force
Length-dependant resistance
Length depending drum resistance factor
Deflector plank resistance
Belt cleaner resistance
2-5 N/cm
Material acceleration (feeding) resistance
Resistance of a discharge trolley
Lifting resistance
Resistance of forward tilted idlers
Number of forward tilted idlers

20. Belt conveyors Belt feeding
Speed vector of the material loaded onto the conveyor  conveyor speed
feeding belt
Tips for feeding:

21. Belt conveyors
Belt feeding

22. Belt conveyors Discharge from the belt Discharge over the head pulley
Discharge from fixed tippers
Discharge from moveable tippers
Discharge by ploughing

23. Tube belt conveyors Construction
Typical curve radius for normal belt conveyor
Typical curve radius for tube conveyor
source: