Re: Ratio Of Feeding & Discharge Conveyors
Questions include: how quickly do you want to refill and what CAPEX premium are you prepared to pay for it?
regards,
Lyle ■
Compare The Meerkat
Conveyor throughput must simply meet the demands of the surrounding process and equipment.
.......It all depends.
Simple. ■
Monte Carlo
The best and more complex solution is to appy a Monte Carlo queuing model. THis will give you the mean and variance of all the conceptual deviations that you may encounter and histogram of filling. Your special problem may not require such a mathematical procedure. But if will give you the necessary input parameters that you must formulate to solve the problem. ■
If Then Logic
If it's crucial, i'd provide a backup, i.g. trucking. Everything else decides by looking at time vs. capacity requirements, however the big picture (up&downstream) is of the essence.
Regards
R. ■
With Tears In My Eyes...
Originally Posted by sganesh
Dear Experts,
.......
How the Feeding conveyor TPH is derived ?
.........,
The feeding conveyor must be able to properly carry whatever supplies it. Whenever.
I thought this was a rather fundamental reason for having conveyors. It was 60 years ago. What have you managed to change? Is a tonne of feathers nowadays lighter than a tonne of magnetite? Are conveyors suddenly in control of the process. Give us a break! ■
Re: Ratio Of Feeding & Discharge Conveyors
Hello,
Often, bunkers are feeding to continuous process plant which cannot be stopped suddenly. The material in bunker is final safety measure ensuring feeding to process plant, for certain hours, even when entire material handling system prior to bunkers have failed as rare / worst scenario. Also such period should be sufficiently more than idle time of main material handling system feeding into bunkers. This is regarding bunker storage capacity.
As for conveyor feeding rate, it depends upon how many hours / shift the main material handling plant would be operational. For power station this is often considered 2 shift (actual operational hours 12 / 14 hours). Third shift for maintenance etc., as may be necessary. In this case, at the end of second shift, all the bunkers should be 100% full (i.e. during 12 / 14 hours working, the incoming system capacity should be such that it caters to material consumption during 2 shifts and leaves the bunkers full at the end of second shift).
As continuous repetitive process, the next day does not mean all bunkers are empty! However for calculation purpose one may imagine this / these to be empty if designer wants to be liberal for safety.
Regards,
Ishwar G. Mulani
Author of Book : Engineering Science And Application Design For Belt Conveyors (new print November, 2012)
Author of Book : Belt Feeder Design And Hopper Bin Silo
Advisor / Consultant for Bulk Material Handling System & Issues.
Pune, India.
Tel.: 0091 (0)20 25871916
Email: conveyor.ishwar.mulani@gmail.com
Website: www.conveyor.ishwarmulani.com ■
Ratio of Feeding & Discharge Conveyors
Ratio of Feeding ( F ) and Discharge ( D ) conveyors TPH of bunker house
Dear Experts,
In many industries, there are bunkers or storage houses, which store the raw material for the factory. There is Feeding conveyor to the bunker and Discharge conveyor from the bunker.
Discharge conveyor is mostly vital conveyor. Breakdown of this conveyor can stop the plant.
The bunker acts as buffer stock in case of break down of its feeding conveyor.
So feeding conveyor capacity ( TPH - Tonnes per hour ) is much higher compared to discharge conveyor and normally runs at much tougher conditions compared to Feeding conveyors.
Here my question:
Please assume Discharge conveyor capacity is 100 TPH.
Bunker Capacity is 1000 Tonnes.
How the Feeding conveyor TPH is derived ?
200 TPH ? 250 TPH ? 500 TPH ?
I can understand that it purely left to the owners financial capability , the failure rates assumed for feeding conveyors etc.,
Still, there could be some industrial practice which governs the above .
Requesting your reply.
Thanks & Regards, ■