solutionbg

TinTungsten Ore Mining Plant Solution

TinTungsten Ore Mining Plant Solution

Release time:26 February 2018
AlluvialTintungstenOreprocess-plant

Background :

Tungsten ore is a rock from which the element tungsten can be economically extracted. The ore minerals of tungsten include wolframite, scheelite, and ferberite. Tungsten is used for making many alloys.

Cassiterite is the best-known tin mineral. It has been used as the chief ore of tin from early history throughout the ages, and remains so even today. Some of the economical Cassiterite deposits exist in placer stream deposits where this very heavy mineral collects as rounded waterworn pebbles. The name Cassiterite is derived from the Greek “kassiteros”, meaning tin.

Both Tungsten and Tin are heavy minerals and can be mined from rock type and sand type raw material. They are normally mixed in the same processing plant and finally separate in last refining step .

Process method for alluvial/sand type

Feeding: according the plant and minerals situation. miners can choose different feeding device such as : vibration feeder, hopper, belt feeder, or wheel loader and excavator . In order to remove big waste stones,Grizzly bar is always required to set before the feeding machine

Washing: Trommel scrubber ,Trommel screen ,Spiral wash wash machine are often used in the washing step. Trommel scrubber is highly recommend to used in breaking

down sticky clay from raw material. If the raw ore is with little/light clay, tromnel screen and spiral wash machine is fine .

Sizing : the sieving process is to classify the washed material into different faction.

useless fraction would be gangue, different useful fraction would be concentrated by

different machine. trommel screen,normal or high frequency vibrating screen are frequently applied in the grading step.

Concentration: Jig separator is used to recovery coarse free tin minerals.

Shaking table is used to recovery fine free minerals.

Drying Processing : Heavy mineral would concentrated after gravity method .

the heavy minerals may have : Tin ,Tungsten,Coltan, Zircon,Gold. Magnetic separating

is required to separate them. Drying Processing is needed before

Process method for Rock type

Comparsion: Different from alluvial minerals processing line. Rock type would be more complicated,so the investment for a rock type tin/tungsten processing plant would be much large .

Feeding: Same with alluvial type

Crushing: The crushing section is designed to remove the undersize between each crushing step to avoid an excess production of fines. Also a Vibrating Screen is used ahead of the secondary crusher. The secondary crusher is operated in closed circuit with the vibrating screen to insure a uniform product to the plant.

Sizing&Grinding: Grinding is performed using a Ball Mill operating in closed circuit with Spiral Classifier. This procedure provides a minus 1 mm product for subsequent table treatment .

Concentration: The minus -1mm screen undersize is sized in a Hydraulic Classifier for most efficient tabling. Concentrating Tables with sand riffles handle the coarser sizes while the finer sizes are treated on decks riffled for finer sands. The rougher table concentrates are subsequently cleaned on two separate tables. In some cases a portion of the rougher concentrate can be cut so as to yield some final concentrate not requiring retabling.

Drying Processing : Heavy mineral would concentrated after gravity method .

the heavy minerals may have : Tin ,Tungsten,Coltan, Zircon,Gold. Magnetic separating is required to separate them. Drying Processing is needed before Dry type magnetic separator .

Upgrading Process: To separate the heavy minerals, magnetic machine would be used . In our cases,Three belt magnetic separator is frequently used in Tin.Tungsten separation.