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Shaking table is also called shaker table, which is the commonly used gravity ore dressing equipment. Its separation efficiency is greater than the general gravity separation equipment.
Centrifugal gold concentrator utilizes the principles of a centrifuge to enhance the gravitational force experienced by feed particles to effect separation based on particle density.
It can be used not only for alluvial gold mining, but also for recover the natural gold from hard rocks, to replace amalgamation,and recover gold from the tailing.applications shows that the recovery can be as high as 99%, and the concentrating ratio is up to1000 times.In recovering the natural gold in lode ore with size -0.074mm, the gold recovery is up to 98%.
Centrifugal Concentrator use the principles of a centrifuge to enhance the gravitational force experienced by feed particles to effect separation based on particle density. The key component is cone shaped concentrate bowl. Feed material is fed as a slurry toward the center of the bowl from above. The feed slurry contacts the base plate of the vessel and due to its rotation, is thrust outward. The outer extremites of the concentrate bowl house a series of ribs and between each pair of ribs is a groove. During operation the lighter materials flows upward over the grooves and heavy mineral particles become 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.
Feeding, rotor, groove, motor, backwash water, PU lining plate, bearing, frame, tailings and concentrate discharge, etc.
| Model | BC-19 | BC-30 | BC-60 | BC-80 | BC-100 |
| Capacity(t/h) | 0.25-0.3 | 2-3 | 10-15 | 35-40 | 80-120 |
| Feeding size(mm) | 0-3 | 0-4 | 0-6 | 0-6 | 0-6 |
| Feeding density(%) | 0-50 | ||||
| Fludization water(m³/h) | 2-3 | 3-5 | 7-10 | 30-36 | 50-60 |
| Concentrate capacity(kg/time) | 2-3 | 10-20 | 30-40 | 60-70 | 70-80 |
| Power (kw) | 0.75 | 1.5 | 5.5 | 11 | 18.5 |
| Overall Size (mm) | 790*785*790 | 1180*1140*1250 | 1970*1670*1750 | 2300*1800*2200 | 2500*2000*2400 |
Answer: Key factors influencing separation include the table’s motion (stroke and frequency), water volume and slope, feed rate and concentration, and the feed material’s particle size and shape. Proper adjustment of these factors is critical for efficient separation. The table’s longitudinal and transverse slopes must be precisely controlled. The feed concentration should also be appropriate, typically 20-30% for coarse minerals and 15-25% for fine minerals.
Answer: Operation involves observing the bed surface and adjusting the slope, water flow, and feed rate. Regular maintenance includes checking for loose parts, lubricating moving components, inspecting for wear, and cleaning the table surface. Preventative maintenance should be performed regularly, with intervals ranging from every month to once a year.
Answer: Common issues can include table shaking or choppy cuts, uneven material distribution, or poor separation. Troubleshooting may involve checking for loose bolts, damaged springs, or misalignment, adjusting belt tension, inspecting electrical components, and ensuring proper lubrication. If there’s unusual noise, identify the source and eliminate the problem.
Answer:
Advantages: Shaking tables offer high enrichment ratios, are relatively simple to operate, and produce visible separation zones, allowing for easy adjustment and monitoring. They are suitable for a wide range of particle sizes and densities.
Disadvantages: They typically have lower throughput capacity compared to some other methods like jigs or spirals. They also require a relatively large footprint and consume a significant amount of water.
Answer: The selection depends on the material being processed, the desired throughput, and the particle size range. Factors to consider include the deck area, stroke length, and riffle design. Consulting with a manufacturer or expert is recommended to determine the optimal configuration.
