Knelson

[zippo]

Hi all , I am on the hunt for a 30" Knelson . Condition , something rebuild able . Please reply here if you have some information . Thanks .

 

[casper]

would love to help BUT what is a Knelson ?

 

[zippo]

A knelson concentrater is used to separate minerals by the use of centrifugal force and water . Mainly used in volume applications . Bit like a washing machine on spin cycle .

 

[Moneybox]

What area are you in?

 

[grubstake]

What area are you in?

He's in North Queensland.

 

[Moneybox]

A bit difficult to ship something from here.

 

[zippo]

Freight may not be an issue for a good unit .

 

[grubstake]

There's a lot of relevant discussion in this prior thread, including a member with a Knelson that he was prepared to sell:
https://www.prospectingaustralia.com/threads/flexicone-centrifugal-concentrator.33155/

 

[Moneybox]

Not a Knelson but a Knudsen.



View attachment Knudsen movie.mp4

I bought this with a wet plant in mind but the problem is getting the wet bit. PM me if you're interested. I've not set it up properly but I've run a few buckets of dryblower concentrates through and it does the job.

 

[Simmo]

I've got one (Nelson/Knudson) in pieces here in Cairns. Certainly rebuildable.

 

[Mike678]

would love to help BUT what is a Knelson ?

Hi all , I am on the hunt for a 30" Knelson . Condition , something rebuild able . Please reply here if you have some information . Thanks .

 

[Mike678]

View attachment 11458

This is a 3 inch Knelson that I have . It is more advanced now . Will have to take a new photo .

 

[Mike678]

Some info on 3 inch and 7.5 inch Knelsons . A sluice box has only 1 G . at 1,453 rpm there is a force of 60 G on gold particles .

 

[Mike678]

 

[Mike678]

 

[Mike678]

Some info on 3 inch and 7.5 inch Knelsons . A sluice box has only 1 G . at 1,453 rpm there is a force of 60 G on gold particles .

View attachment 11474

View attachment 11475

 

[Mike678]

 

[zippo]

Thank you for that info . It is hard to get information that you can read .

 

[Mike678]

New photos .

 

[Simmo]

View attachment 11476

This was the intent of the one I got.
I'd seen it in action on the Hodgkinson gold field on the fine gold.
Trying to reduce that inherant 12% loss over the launder.
I heard also that Frank was trying the same set up on his plant up past Cannibal creek.
The reason I didn't continue was that we were putting so much water thru the main sluice, this thing could never keep up.
But I have seen them work very well on concentrates, if you were to rework tailings piles and get some of that lost 12%...