Found in Bulgaria are some of the oldest gold artifacts known to mankind, in the Varna Necropolis, a collection of graves built between 4700 and 4200 BC. This finding, dating back nearly 7000 years, provides evidence of the first civilization to use gold mining equipment.
Gold ore . Prominer maintains a team of senior gold processing engineers with expertise and global experience. These gold professionals are specifically in gold processing through various beneficiation technologies, for gold ore of different characteristics, such as flotation, cyanide leaching, gravity separation, etc., to achieve the processing plant of optimal and cost efficient process designs.
The gold mining equipment includes: jaw crusher, hammer crusher, roller crusher, impact crusher, vertical crusher, cone crusher, ball mill, vibrating screen, spiral separator, flotation machine, mining agitation tank, ore feeder, concentrator, mine hoist, mining conveyor belt, pre watering into a ball plate, spiral chute, beneficiation shaker, washing machine and other equipment.
Other gold mines use underground mining, where the ore is extracted through tunnels or shafts. South Africa has the world39;s deepest hard rock gold mine up to 3,900 metres underground. At such depths, the heat is unbearable for humans, and air conditioning is required for the safety of the workers.
Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies.
Rotary dump gold mine ore car, built in a blacksmith shop about 1880, newer undercarriage. Unique 4 bar mechanism arms open end gate to dump and hold it open until box is returned to latched position. Used by miners for hand tramming rock in gold mine, 8 dia. wheels, 18 gauge.
The mining machinery manufactured include a host of Gold Recovery and Mineral Processors including Gold Concentrators and Separators, Portable Placer or Alluvial Wash Plants, Portable Crushers, Trommels and Scrubbers, Gold Centrifuges, Jig Recovery Units, Rotary Helix Concentrating Tables, Screen Decks, Hopper Grizzley Feeders, and Gold and Precious Metal Refineries.