Giant GOLD DREDGES make a comeback, Mongolian Dredge Fleet disproves drills |
Giant GOLD DREDGES make a comeback, Mongolian Dredge Fleet disproves drills |
Feb 14 2007, 04:16 PM
Post
#1
|
|
Diggin' In! Group: Members Posts: 26 Joined: 14-February 07 Member No.: 990 |
Hi Folks - I'm a newbie here, usually on Alaska Gold Forum but lived in Mongolia since 1995. Then there was just one working dredge in Mongolia, and only a few dry mines. I've been documenting the placer gold rush since, now with 135 placer mining companies working 200 placer mines, and the Mongolian Dredge Fleet now has SIX large bucket line gold dredges and about 20 smaller bucket line dredges. I'm posting to share knowhow and ideas. And I am hoping someone will volunteer pics of the Snowstorm Dredge (especially its riffles) for me to include in the Tech Manual I've nearly completed for publication.
First I'll try and post some pics of the gold dredges to see if you folks are interested. If you want to visit them it can be arranged! We'll see how it goes - I would like to discuss PLACER DRILLING later on, as there is a systemic error that means understimation of gold reserves beneath wet floodplains. This error seems to be ignored in the USA and Canada, but please realise that the 6 giant Gold Dredges in Mongolia exist ONLY because the systemic error was corrected by the soviets just before the command economy collapsed. Enjoy the pics and realise that - if I'm right - then large gold dredges would be profitable in USA and Canada on placers formerly written off as subeconomic grades. cheers - Steppe |
|
|
Jun 23 2007, 01:57 PM
Post
#2
|
|
Diggin' In! Group: Members Posts: 26 Joined: 14-February 07 Member No.: 990 |
What should interest you guys and gals who know the Snowstorm Dredge well, is that the Siberian Dredges have self-cleaning sluice boxes. Think of 20-30 sluice boxes in a row (in parallel), all on wheels on a track, all on an endless chain. Every few minutes, CLANG!, and the whole lot moves to the left, sending the end sluice box off the end to turn upside down, while a freshly cleaned sluicebox appears at the other end. Its a bit hard to explain. Think of the 7 dwarves in bed, lets make it 40 dwarves and a bed with room enough only for 20. One fed up dwarf climbs in the bed and all the sleeping dwarves shuffle along and so Happy is shoved out of the other side of the bed. Happy ends up upside down under the bed, and has to wait his turn until every dwarf is shoved out of bed.
Anyway here are the wheels on a sluicebox: Steppe |
|
|
Lo-Fi Version | Time is now: 16th June 2024 - 09:35 AM |