Draga is a complex mechanized mining and processing unit operating on the principle of a bucket chain excavator mounted on a floating platform. It has a multi-working tool for underwater development. It is used for the development of placers , the extraction of valuable minerals (most often gold , silver ) from them, and for slag dumping.
In Russia, dredges are widely used in alluvial gold mines of the Urals , Eastern Siberia and the Far East .
Also, sometimes a ship is called a drag on which such an aggregate is installed.
There are dredges that work on the principle of a suction pump , that is, they suck up the rock and pump it to the processing plant.
Dredge has a tremendous impact on the ecosystem of the river, virtually completely destroying its old channel and banks.
Content
- 1 Interesting facts
- 2 See also
- 3 notes
- 4 References
Interesting Facts
One of the largest gold mining companies in the Russian Empire was named in honor of dredge [1] .
See also
- Dredge Leonardo
- Dredger
- Dreda No. 601 is the largest in the world.
Notes
- ↑ Joint-stock company "Draga" Archived copy of September 30, 2011 on Wayback Machine
Links
- Irkutsk Heavy Engineering Plant
- Draga - Mountain Encyclopedia
- http://www.proza.ru/2012/04/03/808 - The lie and truth about the Udere dragee fleet