STLB concentrator is kind centrifugal concentration equipment. It can be used not only for placer gold mining, but also for hard rock mining to recover the natural gold, replacing amalgamation. It is also used to recover gold from the old tailings.
Since 1985, three models have been developed. Application shows that the recovery can be as high as 99%, especially for the case in recovering the natural gold in lode ore with 65% of the ore having a milling size of -0.074mm, the recovery for the natural gold is expected up to 98%. For that natural gold of 0.004mm in particle size. The recovery is 97%. The cleaning up cycle is 1~4 hours. And the upgrade ratio is up to 1, 000 times.
Features
1. High concentrating ratio and high recovery
2. Total process automation, steady recovery performance
3. Center dischange design for fast, secure concentrate removal
4. Environmentally friendly(requires no chemical additives or reagents)
5. Low water and electricity requirements
6. Low production costs, durable wear parts, minimal maintennance requirements
7. Compact design requiring less space, easy merged into the existing mining processing
8. Quick payback on investment, typically lass than half year.
Process description
The STLB Concentrator is specifically designed for recovery of free, metallic gold, platinum or silver from hard rock circuits and is also an ideal technology for alluvial gold including secondary
Recovery of sand and gravel operations. The STLB Concentrator subjects the material being processed to a centrifugal field of up to 60G's which allows recovery of finer native metals than with conventional gravity concentration equipment. Periodically, the high grade concentrate is removed from the concentrate cone during the rinse cycle. The rinse cycle time is typically less than 20 minutes per cycle. Optimum operating cycles will range from< 1hr to > 4hrs.
Feed is screened at approximately 2-4mm depending on the application, introduced as slurry through the central vertical feed pipe, and accelerated by the rotor. Rapid stratification according to specific gravity occurs as the material is driven up the grid concentrate cone wall under the influence of an immense gravity field. Fluidization water is injected through the rotor wall to create a dilated or fluidized bed. The high specific gravity gold or other target particles become embedded in this zone and are retained here until the machine is stopped and the concentrate is rinsed down through the concentrate discharge ports. A centrally located rinse manifold directs jets of water to thoroughly rinse concentrate from the retention zone after each operating cycle.
How does STLB Concentrator Work
1. Fluidization water is introduced into the concentrate cone through a series of fluidization holes.
2. Feed slurry is then introduced through the stationary feed tube and into the concentrate cone. When the slurry reaches the bottom of the cone it is forced outward and up the cone wall under the influence of centrifugal force.
3. The slurry fills each ring to capacity to create a concentrating bed. Compaction of the concentrating bed is prevented by fluidization process.
4. The flow of water that is injected into the rings is controlled to achieve optimum bed fluidization. High specific gravity particles are captured and retained in the concentrating cone.
5. Upon conclusion of the concentrate cycle, concentrates are flushed from the cone into the concentrate launder through port.
Equipment Maintenance
1. Maintenance the equipment periodically as the requirement of electromotor.
2. Clear up the equipment after one period of working time.
|
Model |
STLB20 |
STLB30 |
STLB60 |
|
Feeding Capacity (T/h) |
0.25 |
2-3 |
8-12 |
|
Fluidization Water Required (L/Min) |
13-20 |
50-80 |
130-180 |
|
Slurry Water Required (L/Min) |
16 |
120 |
400 |
|
Feeding Size (mm) |
-2.5 |
-4 |
-6 |
|
Concentration Cleaning Up Cycle (Hour) |
1-4 |
|
Concentrate Weight (Kg/Shift) |
2-4 |
5-10 |
15-20 |
|
Power Requirements (kw) |
0.75 |
1.5 |
4 |
|
Weight (Kg) |
160 |
385 |
1000 |
|
Overall Dimensions (mm) |
800× 560× 710 |
1280× 1030× 1135 |
1850× 1550× 1600 |
Jinshibao Corporation of manufacturing mining machines of Jiangxi Province, who is lying at foot of the beautiful Wu Yi Mountains and on the bank of abundant QinJiang River, was founded in 2001. Previously, it is called "mining machinery factory of ShiChen of Jiang Xi Province, "It covers more than 8000 square meters, and serve mining machines\developing mil running equipments, processing and selling as its main businesses.
Our corporation is holding on to the founding idea that credit stands first, living up to the service principle to satisfy the clients, and the managing idea that "Quality Stands first, Clients are the Gods". From 1995 on, all kinds of mining machines produced by our corporation recognized by the Supervising Bureau of Quality and Technique of Jiang Xi province recognized by the Supervising Bureau of Quality and Technique of Jiang Xi province continuously as "Qualified Products in the Province". Moreover, we are awarded as one of the famous enterprises in the Province and honorable titles of "making much of contract and keeping promises" "reliable quality" "excellent services after sale, " we also get government's-relevant departments' supports and prizes constantly. Our selling places cover all over the country, far more to South Korea\Vietnam\Burma\Russia and countries in Africa. And we are providing considerate services to thousands of clients and winning prestige in the world market.
Up to now, we have deeply realized it is the international standards the "Quality Managing System of ISO9002"follows to manage the enterprises orderly and effectively, to improve the quality, lower cost, perfect the guaranteeing system of quality, and then to advance the comprehensive quality of corporation, increase profits and the ability to compete. Our corporation will normalize our work according to the standards of "ISO9002"all the time, and try our best to put our managing idea of "quality stands first and clients are the Gods" into practice thoroughly, and requite the society and clients by using the best products. We are heartily welcoming new and regular clients to come here to give us some suggestions and trade.
