Rick
In Mafikeng, I would say it was used to crush stone for building
purposes (concrete). The SA Phosphate Co. was formed in 1953 to
investigate the beneficiation of the mineral Pyroxenite (essentially
Calcium Phosphate - abundant in the Phalaborwa area) to be used for the
manufacture of Superphosphates & acquired the crusher for use in a small
pilot plant. The position of the asymmetric driven cone in the middle of
the crusher would have been adjusted to produce the required fineness &
any screened oversize would have been recycled. The tests were
successful and the SA Phosphate Co. became Foskor which has built a huge
plant over the years, today producing about 3m tons of Pyroxenite
Concentrate (containing about 36.5% P2O5) per annum. The antique crusher
was "rescued" from the veld and re-located outside Foskor H/O
(diagonally opposite the Police Station!) about 1985 by a former
manager, Jan Scholtemeyer, who had a great interest in the history of
Phalaborwa. The huge crushers in use today still work on exactly the
same principle.
Alan C
On 01-Dec-22 05:15 AM, Rick Womer wrote:
Alan, was that used for crushing coal, crushing ore, or something else?
Rick
On Nov 28, 2022, at 10:20 AM, Alan C <[email protected]> wrote:
You may recall this shot I posted in the October PUG?
https://www.flickr.com/photos/wisselstroom/52528837587/
Well, I was looking for more details & found this copy of the 1900 NY Engineering
& Mining Journal with a drawing of the exact crusher on p 17. Scroll R for the
other.
https://www.flickr.com/photos/wisselstroom/52529290826/
Alan C
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