shaking table in metallurgy

shaking table in ore processing | fote machinery

Applied material: tin, tungsten, gold, silver, lead, zinc, tantalum, niobium, titanium, manganese, iron ore, coal, etc. Advantages: high concentration ratio of dressing, convenient adjustment and easy to get obvious separation.

The shaking table beneficiation can not only be used as an independent beneficiation method, but also is often combined with methods such as jigging, flotation, magnetic separation by centrifugal concentrator, spiral classifier, spiral chute and other beneficiation equipment.

The shaking table is mainly used for the separation of copper, tungsten, tin, tantalum, niobium, chromium, gold and other rare metal and precious metal ores. In addition, it is widely used in the separation of iron, manganese ore and coal. Before flotation, it was also used in the dressing of nonferrous ores.

It can be used for different operations such as roughing, concentration, sweeping, etc., to separate coarse sand (2-0.5 mm), fine sand (0.5-0.074 mm), sludge (-0.074 mm) and sand with other different particle sizes. It is very effective equipment for selecting fine-grained materials below 1 mm, especially below 0.1 mm.

The bed surface can be made of wood, FRP (glass fiber reinforced plastic), metals (such as aluminum, cast iron) and other materials. Common shapes of the bed surface are rectangle, trapezoid and diamond.

There is a feeding chute on the upper right of the bed surface, the length of which is about 1/3~1/4 of the total length. There are many small holes on one side of the feeding chute, so that the slurry can be evenly distributed on the bed surface.

Connected to the feeding chute is the flushing tank, which accounts for 2/3~3/4 of the total length of the bed surface. Many small holes are made on the side of the tank so that the flushing water can be evenly fed along the longitudinal direction of the bed.

The light mineral particles in the upper layer are subject to great impact force, and most of them move downwardly along the bed surface to become tailings. Accordingly, this side of the bed surface is called the tailings side.

The heavy mineral particles at the bottom of the bed move longitudinally by differential movement of the bed surface, and are discharged from the opposite of the transmission end to become concentrate. The corresponding position of the bed surface is called the concentrate end.

The horizontal and longitudinal effects of mineral particles of different densities and particle sizes on the bed surface are different. The materials finally spread out in a fan shape on the bed surface, and a variety of products of different quality can be obtained.

The amount of feeding ore is related to the granularity of the feed. If the ore grains are relatively coarse, the required amount of feeding ore is large. However, if it is too large, it will cause zoning problems. In this case, it is necessary to move the concentrate intercepting plate to increase the flushing water and the horizontal slope of shaking table surface.

The Cr2O3 content in a certain lean chromite ore in Zimbabwe is only 8.19%. Fote has conducted research on the beneficiation technology and equipment of the lean chromite ore, finally decided to adopt the beneficiation method: tail discharging by the strong magnetic separationfull-grain separation by shaking table. The indicators are relatively good.

Step 2 Then use Fote magnetic separator for strong magnetic separation to remove qualified tailings with a yield of 50.21%, and the tailing grade is only 2.19%. As a result, the amount of ore entering the shaking table is reduced by half, and the number of shaking tables is greatly reduced. At the same time, after throwing the tail, it creates favorable conditions for the sorting of the shaking table and further improves the sorting index.

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Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.

what is the shaking table? | recyclinginside

The shaking table, also known as gravity separation, has different relative movements against gravitational forces, depending on factors such as weight, particle size, and shape by taking advantage of the density differences between mineral particles.

Shaking tables are rectangular-shaped tables with ribbed decks with a water film flowing on them. Water flowing along the long axis of the table slurries the fed sample. Low-density particles are transported in the fast-moving film, causing fine, high-density particles to fall into the beds behind rifles. With the rapid backward movement of the table, the particles gain a forward movement thanks to momentum, so each structure is separated from the other. Separation performance in shaking tables is directly related to particle size distribution.

Therefore, the narrower the grain size of the material, the better the separation performance. Wilfley and Gemini type shaking tables appear with different models in the recovery of precious metals, in gold mines, and in electronic waste recycling processes.

The shaking table used in the beneficiation of the mine field has the feature of separating precious and rare metals, especially in the structure of complex electronic wastes, from glass fiber and other plastic structures according to the density difference.

It is divided into three as concentrate, intermediate, and residue. In the chemical process, metals in concentrates and intermediates can be obtained more easily with high purity, while the residue, which is thought to be plastic and its derivatives, can be evaluated in another recycling process.

Proses Makina Company has minimized the leaks that may occur in the physical process with the innovations it made in the shaking table in addition to the chemical solutions it offers in mining and recycling. We continue to provide the needs of our customers in this adventure that we set out with the vision of zero loss!

Proses Makina is producing plants for refining and recycling systems. Thus, precious metals and rare metals attainable from e-waste, catalytic converter/spent catalyst, jewellery and mining fields. Catalytic converters contain PGMs and it's possible to recovery as Platinum, Palladium, Rhodium. Also e-waste has a precious metals and our e-waste recovery ...

flsmidth shaking tables upgrading gold concentrates

Within the gravity concentration circuit, upgrading of concentrates is critical to the success of your project. Our shaking tables are used in the final stages of gravity concentration achieving not only maximum metals recovery, but also the highest grade concentrates possible.

Our MT3500 Mineral Table and ATS3500 Automated Table System are gravity separation machines designed with quality, safety, and performance in mind. They are utilised to separate dense material, such as gold, platinum, and other precious metals, from less dense gangue materials. They are complete package units provided with all necessary process and control equipment to upgrade the Knelson concentrate.

The MT3500 is provided with a variable frequency drive that provides additional flexibility in setting up the ideal operation mode for each application. Separation is achieved by a combination of strike-oscillations directed down the length of the table and a perpendicular crossflow of dressing water that carries lighter materials to the edges of the table.

The ATS3500 Automated Table System is provided with a vibrating screen which receives and screens the concentrate feed continuously. The screen undersize is discharged by gravity into an agitated tank and elevated by a screw conveyor in a controlled manner to the concentrating tables feed tank. The tabled material undergoes a magnetic separation while being concentrated. The final table concentrate is then discharged into a secure lockbox while the middling are re-circulated to the agitated tank to be processed again.

At FLSmidth, the performance, safety, and quality of our products is paramount. These standards are reflected in our shaking tables, built to last, to be safe, and to provide you with the best recovery possible.

Our shaking table systems have the largest available surface area for concentrate capture on the market. This means out of all the shaking tables available, youll get the greatest yield from using ours.

With their flat profile design, an optional overhead magnetic separator can be used with our shaking tables for the removal of magnetics such as ball mill filings and other ferrous material. Due to this flat design, a minimised offset between the tabling surface and the magnetic separator occurs, improving the recovery of magnetic materials.

We offer a variant of the tabling system that is automated, meaning that it continues to process concentrate without operator interference. The machine comes with an MCC/control panel that provides control for all system motors, as well as a PLC based automated control for the systems base functions, which can be changed to best fit the needs of the particular feed its processing.

FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.

gold shaker table sales,shaking table,gold separator - jxsc

The gold shaker table is a flow film separation equipment, that usually used to separate the gold particle grains from the ore material in the gold processing plant. Shaking table concentrator is developed from the early stationary and movable chute box, from percussion shaking table ( used in the coal mining industry) to the wilfley table and mineral processing eccentric rod shaker table, various type of gravity table separators have been developed and applied, especially in the recovery process of some precious metal like gold. Contact us to get the latest shaker table price.

Capacity: 0.1-2tph Feeding size: 0-2mm Applications: Gold, Tin, Chrome, Tantalum-niobium, Tungsten, Iron, Manganese, Nonferrous metal ore, and so on. Introduction: Gold shaker washing table can obtain the fine-grained materials, and separate the high-grade concentrate, taillights and intermediate mineral products during once processing. According to the different grain size of the ore material, it can be divided into coarse sand (2 - 0.074mm), fine sand (0.5 - 0.074mm), and ore slurry (0.074 - 0.02mm), the suited gold separate machine is varied with the material particle size, the main differences among them are the shaking table surface sluice, height, angle and so on. Main parts: table head, motor drive, stand, working bed, support frame, water tank, feed chute, angle adjuster device, spring, etc.

Types of shaking table: 1. Shake table for sale classified by uses: ore sand, ore slurry, mineral processing, coal dressing. 2. Classified by structure ( table head, surface, supporting frame ): 6-S shaker table, Gemini table, CC-2 gold wash table, spring concentrating table, centrifugal table, rp 4 shaker table, and so on shaking table mineral separation. 3. Classified by deck: single deck shaker table, the multideck table has double decks, three decks, four decks, six decks, and more.

Working principle of the shaker table: As a gravity separator machine, the shaking table separates the minerals mainly dependent on their differences of gravity, density, shape, etc, in addition, the water flow speed, slurry density, surface angle and so on variables also matters. The target mineral grains, from fine to coarse and light to heavy, can be classified by weight. The shaking table concentrator not only can be an independent beneficiation machine, but also connect with jig machine, flotation, magnetic separator, centrifuge concentrator, spiral concentrator, belt conveyor and so on.

Mining Equipment Manufacturers, Our Main Products: Gold Trommel, Gold Wash Plant, Dense Media Separation System, CIP, CIL, Ball Mill, Trommel Scrubber, Shaker Table, Jig Concentrator, Spiral Separator, Slurry Pump, Trommel Screen.

shaking tables, knudsen bowl

For gold operations we design and manufacture the MD Gemeni range of Shaking Tables. Specifically designed to produce a gold concentrate that can be directly smelted to bullion, the Gemeni Shaking Tables are a cost effective solution.

The Mk2 features a direct, fixed speed drive system and can be operated in batch or continuous mode. The MD Gemeni Shaking Table range is almost invariably used for retreating concentrate from sluices, spirals, conventional shaking tables and centrifugal separators

Mineral Technologies supplies Holman Wilfley wet shaking tables for recovery of precious metals, copper wire, synthetic diamonds, chromite, heavy mineral sands and gold. The different models process feed streams of between 5 and 2,500kg per hour. Holman models are available for all fine minerals concentration (e.g. mineral sands, tin, tungsten, chromite, gold). Wilfley model 7000 is available for metal recycling and reprocessing of WEEE materials (Waste Electrical and Electronic Equipment).

Mineral Technologies designs and manufactures the MD Knudsen Bowl. Specifically designed to recover gold from alluvial or hard rock deposits, upgrading and recovery of gold from concentrates from other gravity separation stages, exploration and evaluation of gold deposits ,and other mineral applications including cassiterite and scheelite.

shaking table tests for the seismic response of a base-isolated structure with the ssi effect - sciencedirect

Damping ratio of a base-isolated structure is changed by the SSI effect obviously.Rotation of foundation and isolation layer with an SSI effect are markedly stronger.SSI effect may weaken the isolation efficiency of the isolation layer seriously.SSI effect changes the change rule of acceleration magnification factor.For a non-isolated structure, the isolation efficiency of soil foundation is obvious.

To estimate the effect of the soilstructure interaction (SSI) on the seismic response of base-isolated structures, four shaking table tests were carried out. The influence of the SSI effect on the seismic response of base-isolated structures is verified and some new findings are reported. According to the tests, the damping ratios of the interaction systems with the SSI effects are larger than those of isolated structures on rigid foundations. The acceleration magnification factor (AMF) at each floor of an isolated structure is larger with an SSI effect, and the change law is also affected. With a greater PGA of input motion, AMFs increase monotonically along the height of the isolated structure with the SSI effect. The more important finding is that the rotation response of a foundation can be amplified by the isolation layer, which further reduces the isolation efficiency of the isolation layer. For non-isolated structures on soil foundations, the softer soil layer can be considered as an efficient isolation layer that reduces the seismic response of the structure.