GENERAL DESCRIPTION:
The gravity gold concentrator Semi-Continuous (Batch) Knelson Concentrator
is the most
widely utilized centrifugal gravity
concentrator for gravity recovery in the mineral processing industry.
Knelson Concentrator unit capacities range from laboratory scale to 100 tonnes of solids per hour, and combines centrifugally enhanced gravitational forces with a bed fluidization process to provide unmatched performance in the recovery of precious metals, especially for fine gold recovery.
HOW THE CONCENTRATOR WORKS?
The feed slurry contacts the base plate of the vessel and, due to its rotation, is thrust outward. The outer extremities of the concentrated bowl house a series of ribs, and between each pair of ribs is a groove. During operation the lighter material flows upward over the grooves and the heavy mineral particles (usually of economic value) becomes trapped within them. Pressurized water is injected through a series of tangential water inlets along the perimeter of each groove to maintain a fluidized bed of particles in which heavy mineral particles can be efficiently concentrated. The gold centrifugal concentrator typically operates as a batch process, with lighter [gangue] material being continuously discharged via overflow and a heavy mineral concentrate periodically removed by flushing the bowl with water.
Advantages and characteristics:
♦ High concentrating ratio and high recovery
♦ Steady recovery performance
♦ Center discharge design for fast ,secure concentrate removal
♦ Environmentally friendly (requires no chemical additives or reagents
♦ Low water and electricity requirement .
♦Compact design requiring less space ,easy merged into the existing mining processing .
♦Low production cost ,durable wear parts , miniral maintenance requirements
♦Quick payback on investment ,typically less than half years
TECHNICAL DATA
Model |
STLB20 |
STLB30 |
STLB60 |
STLB80 |
STLB100 |
Capacity(t/h) |
0-0.6 |
2-3 |
8-12 |
35-45 |
70-80 |
Fluidization water(m 3 /h) |
2-3 |
3-5 |
7-10 |
30-36 |
55-80 |
Slurry Water(m 3 /h) |
1.5-4 |
5-7 |
8-12 |
35-50 |
70-120 |
Feeding Density(%) |
0-50 |
0-50 |
0-50 |
0-50 |
0-50 |
Feeding size(mm) |
0-3 |
0-3 |
0-5 |
0-5 |
0-5 |
Concentration Cleaning Up Cycle |
Vein gold 1-3 Hours // Placer gold 2-6 Hours |
||||
Concentrate weight(kg) |
2 |
10-20 |
30-40 |
60-70 |
80-90 |
Power(Kw) |
0.75 |
1.5 |
4 |
11 |
22 |
weight(Kg) |
145 |
400 |
1000 |
1500 |
2000 |
Dimensions (mm) |
790*785 *790 |
1180*1140 *1250 |
1970*1670 *1750 |
2300*1800 *2200 |
2400*2000 *2300 |