DESIGN OF CONVEYORS: SCREW & VIBRATING CONVEYORS
DESIGN OF CONVEYORS: SCREW CONVEYORSScrew flights are produced
either in continuous form or from circular discs.
Adapted from bulknet.com.au.
DESIGN OF CONVEYORS: SCREW CONVEYORS
A schematic view of a typical screw conveyor
Adapted from Ray, Introduction to Materials Handling, 1st
Ed.
DESIGN OF CONVEYORS: SCREW CONVEYORS
Loading efficiency of the vertical cross-sectional area
Inclination factor
Adapted from Ray, Introduction to Materials Handling, 1st
Ed.
DESIGN OF CONVEYORS: SCREW CONVEYORS
Screw diameter vs. speed range
Adapted from Ray, Introduction to Materials Handling, 1st
Ed.
DESIGN OF CONVEYORS: SCREW CONVEYORS
Gravity mode of material movement in screw conveyorAdapted from
McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: SCREW CONVEYORS
Flooded mode of material movement in screw conveyorAdapted from
McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: SCREW CONVEYORS
Screw elevator: dynamic mode of material movement in screw
conveyorAdapted from McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: SCREW CONVEYORS
Feeding of screw elevator by screw feeder
Adapted from McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: SCREW CONVEYORS
* remains constant to the horizontal
Effect of machine inclination on handling capacityAdapted from
McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: VIBRATING CONVEYORS
Typical vibratory conveying system with electromagnetic
drive
Adapted from McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: VIBRATING CONVEYORS
Simple vibratory conveyor motion model
Normal operating ranges for vibratory equipment
Adapted from McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: VIBRATING CONVEYORS
Variation of trough displacement and acceleration with time
Adapted from McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: VIBRATING CONVEYORS
Positive mechanical drive* for longer, heavy duty conveyors
Adapted from McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: VIBRATING CONVEYORS
Rotating eccentric mass mechanical drive
Adapted from McGlinchey, Bulk Solids Handling, 1st Ed.
DESIGN OF CONVEYORS: VIBRATING CONVEYORS
Electromagnetic drive* cyclic energisation of one or more
electromagnets * no mechanical fatigue
Adapted from McGlinchey, Bulk Solids Handling, 1st Ed.
