Randy Clarkson Rod Mill papers?

[Lookinghard]

The links elsewhere on this site to Randy Clarksons Rod Mill paper(s) : "grinding for gold", "Grinding for Gold Presentation ", "Grinding for Gold - Report" are missing from the geology.gov.yk.ca pdf resources.

Anyone still have that or those files? $700,000 in grants were given to produce those reports and they should be available to the public as Randy mentioned in many news reports that they would be.
I do have a 5 page color brochure of a 8" mini-rod mill. Just enough for a taste. No details.

Thanks

 

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[lbd]

Funny you should post this today... I have just been asked to build a second rod mill for our lab (at a mine site)

We already have an 8L MARC mill in service and we have a used barrel so it is just a matter of making the stand and drive unit.. and guards.

May post a photo of the finished unit if I remember

 

[arizau]

I found a University of British Columbia masters thesis submitted by Gavin Clarkson whom I assume is Randy's son. It has all or most of the particulars that the written presentation given by Randy had in it. There is enough info given (and a formula for drum rotation speed, etc.) to build one as used in testing or to scale to different sizes. Google: "Extracting gold from gravity concentrates using grinding and sieving." That thesis was the first thing to appear in my search and is from the open.library.ubc.ca. The whole thesis is interesting but begin about page 32 for info about the rod mill.

 

[lbd]

Rod mill

As mentioned in an earlier post... here is the rendered drawing that our young autocad shining star has drawn up for our new small rod mill... 2.5Gallon drum... we will start building next week...

It still requires guards etc but this is the worst of it.

 

[Bonaro]

For a small rod mill why not direct drive it with a DC motor and eliminate all that machinery? Seems far cheaper and more reliable to me