RE:RE:RE:NEWS Sangdong Mines Operational UpdateGangwon Mining are the undergroun mine development contractors, which means they are on site at Sangdong for the decades long duration of the Tungsten and Moly mining projects. How happy they must be.
They have their own mobile concrete batch plants on trucks to do the initial shotcrete work for the lower new portal, but to continue further works as galleries are opened up they need the new batch plant to keep up.
As I'll explain soon the current power and water supply is OK.
These on site batch plants are used to ensure a fresh concrete mix as opposed to a cement mixer truck travelling hours to site with a spoiled mix close to hardening.
Page 2 of this complex explanation shows a similar set-up :-
https://www.dot.state.mn.us/materials/manuals/concrete/Chapter4.pdf
In the new pics we have three stockpile pens that should store sand, fine gravel and course gravel, while the two tall silos hold dry cement.
Front end loaders then fill the top hoppers that then fill the lower hoppers until the required weight is reached to make the mix for this "rock cake" as required for shotcrete or high strength Mpa foundations.
As you can see in this video at 6.10 minutes we have an existing local water station a bit to the West and the new supply will come from the North , plus the power coming from both the East and West. I know the video says it is all existing, but it was mentioned by Almonty that the hook-up for increased water and power are required.
https://youtu.be/sdKj2oCu6Ko
At the moment all this is not needed until the plant is ready to install the big ticket items but I'm sure planing and some work has started on this.
Big power drains will be the mills and crushers, then the sceens and pumps, plus the there is all the smaller electric motors used for the process plant extraction tanks and flotation cells,
The sruprising thing is that the large thickening tanks use small motors the run the hydraulic power pack unit pump and motors to rotate massive rakes to collect the waste for delivery to the paste plant 60 or so Metres up hill.
June 2021 might be the month for first process plant foundations layed.
BIG fist bumps, food and swilling still to come lol.