Portable Alluvial Placer Gold Washing Plant
Gold washing plant is a complete set of equipment used for gold
beneficiation, mainly used to extract gold from placer gold mines
or gold-containing ores. Its core equipment includes feeders,
trommel screen, shaking table, gold centrifugal concentrator, etc.,
which can efficiently recover gold particles through screening,
gravity separation and centrifugal separation. The gold washing
plant has the characteristics of large processing capacity, and
high recovery rate. It is suitable for scenarios such as placer
gold mines, rock gold mines and tailings re-selection. It has good
environmental performance, does not require chemical agents, relies
on physical methods to separate gold, and is widely used in small
and medium-sized gold mines and placer gold mining operations.
Trommel screen:
The trommel screen is specifically designed for mineral processing
and is primarily used for washing and screening placer
gold/alluvial gold ores. It consists of a semi-covered rotary
screen, a diesel or electric motor, water pumps and pipes, and
other equipment such as a hopper and a mobile trailer.
Knelson Centrifugal Concentrator:
Knelson gold centrifugal concentrator is to use the gravity
centrifugal force to collect the gold concentrate in the river sand
or soil. It is suitable to collect the gold mesh size from 200 mesh
to 40 mesh, and it’s capacity is about 1 to 80 tons per hour.
Application shows, the recovery rate for free gold particles can
reach as high as 99%.
Sluice chute:
The specifications of our sluice chute can be customized as
customer's needs. We can customize the length, width, metal mesh
and the carpet materials as customer's needs. We can also customize
the cover on top to prevent gold being stolen.
Shaking table:
After collecting gold concentrate from gold centrifugal
concentrator and sluice chute, it is most commonly placed on a
shaking table to further improve the gold grade. The shaking table
sets the vibration intensity according to the density/weight of the
metal for screening. Our shaking table have the advantages of high
recovery rate and low production cost.
Mercury Amalgamation Barrel Or Small Ball Mill:
The gold ore concentrate collected from the shaking table will be
put in the small ball mill, or we call it mercury amalgamation
barrel. Then it can mix with the mercury and form the gold and
mercury mixture.
Electric Gold Melting Furnace:
After get the mixture of gold and mercury, we can put it in the
electric gold melting furnace and heat it, then we will get the
pure gold bar.
Gold mercury distiller separator:
The mercury distiller separator is the device to separate mercury
and gold. It is widely used in small gold mining plants to
evaporate the Hg from the Hg+ gold mixture, and refining the pure
gold. Since the mercury gasification temperature is lower than the
melting point and boiling point of gold. We usually use
distillation method to separate gold from amalgam.
Working Principle:
After finishing installation of the whole plant. Use excavator to
dig the raw material and feed into the hopper of the washing
trommel, big stone larger than 20mm will be screened out from the
grate bars of the hopper, small size less than 20mm will go into
the trommel screen. (The mesh size can be customized according to
the customer’s need.) The clay or mud in the raw material will be
washed away from the rotary trommel screen, and then the gold
particles will be feed into the gold centrifugal concentrator or
swing vibrating sluice, (usually we recommend concentrator, because
it can achieve high recovery rate for different gold particle sizes
from 40 mesh to 200 mesh). Following the concentrator is gold
sluice with gold blanket, the gold concentrate sediment in the
bottom of the gold blanket, which is used to recover the remaining
gold in the concentrator. The tailing gold will be collected again
from the fixed sluice box to further improve the recovery rate.
Specifications:
SPECIFICATIONS OF GOLD EXTRACTION EQUIPMENT FOR WASHING GOLD
SEPARATOR MACHINE |
Model | GTS20 | GTS50 | MGT100 | MGT200 |
Parameters |
Size /mm | 6000*1600*2499 | 7000*2000*3000 | 8300*2400*4700 | 9800*3000*5175 |
Capacity | 20-40 tph | 50-80 tph | 100-150 tph | 200-300 tph |
Power | 20 kw | 30 kw | 50 kw | 80 kw |
Trommel Screen /mm | φ1000*2000 | φ1200*3000 | φ1500*3500 | φ1800*4000 |
Sluice Box | 2 sets | 2 sets | 3 sets | 4 sets |
Water Supply /m³ | 80m³ | 120 m³ | 240 m³ | 370 m³ |
Recovery Rate | 95% | 98% | 98% | 98% |
Advantages:
(1) It is easy to move and install inside the mining area.
(2) It is an economical and viable option for material processing
from small to large quantities.
(3) The screen is equipped with various filters for different
heavy-duty drums, ensuring complete separation of fine materials.
(4) The design provides the end user with the flexibility to change
the screen according to the mesh size.
(5) Multi-layer screening improves the selection process.
(6) It has replaceable screen plates to facilitate the replacement
of wear parts.
(7) The trommel screen has high efficiency and big capacity for
different volumes of materials.
(8) The trommel screen adopts a unique design to achieve higher
capacity, extend the service life of the screen, and avoid material
clogging.
Packing & Delivery
Working sites
