Re: Conveyor Design - Bulk Density Impact
If I have understood your enquiry:
1. Volume: A low density so that the conveyor etc has sufficient volume to transfer the material,
2. Power: In general, if a conveyor is designed for a mass flow rate [in lieu of a volume flow rate], the density is not applicable for the main resistance [that is the majority of the total resistance for a conveyor that has negligible lift],
According to some models a "high" density should be used to maximise the secondary resistance [relative minority of the total resistance, and hence "should" not significantly effect the total resistance e.g. skirt friction] so that the conveyor has sufficient: conveyor belt strength, and/or power etc;
3. Structural: High density so that the structure etc is suitable for the applied loads,
4. The design values "should" be plausible: maximum, or minimums; according to reputable sources [e.g. references, or statically significant test data etc] to reflect the infrastructure's lifecycle,
5. Refer 4, and
6. Refer 4.
This is not as clear as I desire, though hopefully provides some assistance.
Regards,
Lyle ■
Conveyor Design - Bulk Density Impact
Hi all,
I am very new to conveyor design (just studying now), so I'm hoping some of you can assist with what may be viewed as a basic question as I am a novice.
Can someone please explain to me why different bulk density values are used for volume, power and structural calculations in conveyor design?
Volume calculation - low bulk density value for an ore type
Power calculation - high bulk density value for an ore type
Structural calculation - high bulk density value for an ore type (value tends to b higher than the one used for power calculation)
As a follow on from that question, once a conveyor is designed and installed. When the bulk density of the ore changes over time, e.g. the ore being transported on the conveyor has lower bulk density than the design value, how does that impact the volume, structural and power calculations?
I would assume in this case, the conveyor would need to be upgraded volumetrically but power and structural calculations are not an issue? With that being said, if the bulk density of the ore is higher than what was used to design the conveyor then the power and structural upgrades would need to be made, but volume is not an issue?
Looking forward to the assistance. ■