Re: Reducing Generation Of Fines
My first question is, how have you quantified the fines generation during transport?
Secondly, what will happen to the ore when it is unloaded? Will it be subject to several process steps and then be dropped 20 metres into the hold of a ship?
The thing about fines is; the more you have, the less you generate. Fines can have a cushioning effect.
You do not make it clear if rubber lining is the only option under consideration.
I cannot imagine that rubber lining of wagons will be effective, but the obvious first step is to line one wagon, and more importantly, work out how you are going to quantify the input and output fines levels. That would seem to me to be require significant effort. Then you need to figure out how it will behave further down the process line, if there is one.
In a case like this it is the same story. Newton worked out the basics of it a long time ago.
1)Observe,
2)devise a measurement tool,
3)measure,
4)analyse the data.
5) draw conclusions ■
Re: Reducing Generation Of Fines
Originally posted by donecker
My first question is, how have you quantified the fines generation during transport?
Secondly, what will happen to the ore when it is unloaded? Will it be subject to several process steps and then be dropped 20 metres into the hold of a ship?
The thing about fines is; the more you have, the less you generate. Fines can have a cushioning effect.
You do not make it clear if rubber lining is the only option under consideration.
I cannot imagine that rubber lining of wagons will be effective, but the obvious first step is to line one wagon, and more importantly, work out how you are going to quantify the input and output fines levels. That would seem to me to be require significant effort. Then you need to figure out how it will behave further down the process line, if there is one.
In a case like this it is the same story. Newton worked out the basics of it a long time ago.
1)Observe,
2)devise a measurement tool,
3)measure,
4)analyse the data.
5) draw conclusions
I agree with peter, what are they thinking as iron ore dust is what is wanted for the smelter anyway.
If they have a housekeeping problem they need to address that instead trying to eliminate fines as any ore metal or non metal will generate fines!, yikes pour me a pint of bittters! ■
Re: Reducing Generation Of Fines
If the miner can afford to rail simple crushed ore 400km without first concentrating it then a bit of fines generation surely won't hurt his pocket.
Rubber lined railcars would be as much use as a chocolate teapot. The disturbances come through the cart spring suspensions of the rolling stock and their amplitude at source is at least the same as any reasonable lining thickness, no matter how soft. The rubber lining would have to support the weight imposed & yet be soft enough to yield under the deflections encountered i.e. unreasonably thick.
Fortunately the wind isn't blowing all the fines away. Or is it, and there's just a keen weighbridge operator at the delivery point? ■
John Gateleyjohngateley@hotmail.comwww.the-credible-bulk.com
Re: Reducing Generation Of Fines
BHBP HBI in Port Headland I think, was a plant to have a go at "processing" Iron Ore in Aus.
This plant is, as I understand, no longer in operation and, again as I understand, is now being dismantled due to various reasons.
As I understand we generally export the raw product.
Regards,
Lyle ■
Re: Reducing Generation Of Fines
A large proportion of the workforce along St George's Terrace in Perth is, as I type, variously engaged in designing concentrating plant for various ores. Most iron ore imported into Europe is pelletised, somewhere, before shipping space is dedicated to carting gangue halfway round the globe. This thread is simply about transport not export. ■
John Gateleyjohngateley@hotmail.comwww.the-credible-bulk.com
Reducing Generation Of Fines
One iron ore mining company is facing problems due to excessive generation of fines during transportation of crushed ore over a 400 Km distance by railway wagons.
There is a proposal to rubber-line the wagons and reduce the transit vibrations / shocks that add significantly to generation of such fines.
Has something like this been tried before ? Could someone throw some light on results obtained, if any ?
Theoretically, how would experts on this forum react to the probable success of such a proposal ?
I look forward to some inputs so that this proposal can be considered further.
Regards
BoL ■