Material Analysis before a Screw Conveyor is being used

The initial step in engineering a screw conveyor is to analyze the material being handled anf as certain its physical properties in order that they may be thoroughly evaluated and understood prior to proceeding with the conveyor sizing and selection. The properties of the materials are discussed in further depth below.

 

1.Lump Size

The minimum diameter of a conveyor screw for a given application is determined by the maximum lump size of the material being handled. It is necessary to thoroughly analyze the material and determine its maximum lump size and the percentage of lumps to total volume along with the minimum particle size and screen analysis when possible. 

 

2.Flowability

The flowability of a material will affects the horsepower requirement of the conveyor in question. Flowability is related to the angle of repose of a material. Fine free flowing materials can be handled at higher trough loadings with lower horsepower requirements than coarse, sluggish ones. 

 

3.Abrasiveness

The more abrasive the material being handled, the greater the wear the conveyor components are subjected to. Hence, it is necessary to determine the abrasive quality of the material in question prior to sizing the conveyor. Abrasiveness can be determined by knowing a material’s hardness. 

 

4.Moisture Content

Moisture content of materials is a factor that affects material flow. Excessively dry or wet products tend to flow easily. However, many develop sluggish characteristics when having moisture content between the two extremes. This is not accounted for in the material tables which follow and such materials should therefore be reclassified. 

 -------------------------------------------------------------------------------------------------------------------------------------

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, andVibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. Our goal is "be the future global leader of mining machinery industry". Have any questions, please contact us without any hesitation.