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The density of tin(Cassiterite) ore is larger than the paragenetic mineral, so the mining process of tin(Cassiterite) ore apply gravity separation.

Rock tin processing plant

Tin ore processing methods

Different types of tin ore is now commonly used beneficiation methods:

  • Easy-to-select tin ore: such as tin oxide ore, cassiterite-quartz type ore, and tin-bearing granite type ore, which are usually treated by gravity separation or heavy-floating process.
  • Refractory tin ore: such as cassiterite-sulfide skarn type ore, cassiterite-sulfide type ore, generally choose heavy-float-heavy, magnetic-float-heavy and other beneficiation processes or combined beneficiation and smelting processes.
  • Extremely refractory tin ore: such as tin-bearing magnetite skarn ore, it should be treated with a combined process of magnetic-float-heavy, or medium ore fuming.

Tin ore beneficiation is usually carried out by gravity separation, which is determined by the characteristics of tin ore due to its higher density than that of co-existing minerals. However, iron oxide minerals such as magnetite and hematite are often associated with tin ore, so it is impossible to completely separate the ore only by gravity separation. Therefore, the tin ore beneficiation method will also use the magnetic separation method and the flotation method.

Tin ore mining process

1. Ore washing and desliming: This step is aimed at the raw materials with large mud content and strong cementation, such raw materials must be washed and deslimed before being crushed. A trough-type washing machine is used for ore washing, and a classifier and a hydrocyclone are used for desliming.

2. Crushing and screening: Use jaw crusher and hammer crusher to crush raw ore into ore with particle size below 20mm. Then it is divided into two grades of 0-4mm and 4-20mm by a vibrating screener.

3. Gravity separation: After crushing and screening, it will enter the pre-selection stage. First, the ore of 4-20mm should be pre-selected with a heavy medium cyclone, and then enter the first stage of grinding. After grinding, the ore will be further sorted by a jig separator and a vibrating screen. 2mm, -2mm and then use the shaker to select the concentrate, and +2mm become the tailings.

4. Flotation stage is divided into two steps: mixed flotation and separation flotation. First, we need to carry out mixed flotation of the concentrate selected by the jig and shaking table, and then carry out the separation and flotation of lead and zinc. The ore selects qualified tin concentrate by shaking table.

Tin ore process plant flow

The beneficiation equipment and process of alluvial tin ore are relatively simple. The beneficiation and purification of alluvial tin can be completed by screening, washing, jig concentrator and shaking table, and magnetic separation.

This system is a fully set 120tph alluvial tin ore mining plant including a vibrating feeder, trommel screen, belt conveyor, sand pump, jig separator, shaking table, and three discs magnetic separator.

Raw ore conditions in this tin project are as follows:
1. Raw ore doesn’t contain sticky clay, just alluvial loose soil
2. Tin concentrate size in alluvial ore is 0-5mm
3. Maximum feeding size of raw ore is 150mm
4. Feeding capacity is 120 tons per hour

The whole processing flowsheet is as follows:
1. Excavator or wheel loader feed raw ore to the hopper, through vibrating feeder evenly feed trommel screen. Here vibrating feeder with grizzly bar, gap 80mm, so over 80mm waste stone will be removed and transported to waste stockpile. Disperse the raw material on the vibrating feeder with a high-pressure water gun.
2. Trommel screen has two layers screen, the inner screen is a bar steel screen with 30mm, and the outer screen is manganese steel wire mesh with 5mm hole size, so all over 5mm materials are screened out and transported to waste stockpile. Below 5mm materials will go to the distributor with a sand pump.
3. Below 5mm ore in distributor flow to 6 sets 4m2 jig separators by gravity. 4m2 jig separator has the capacity of 15-20 tons per hour. They are the primary separation of tin concentrate.
4. Tin concentrates from 6 sets of 4m2 jig separators go to 3 sets of 2m2 jig separators by gravity. 2m2 jig separator has the capacity of 5-10 tons per hour. They are fine separation tin concentrate.
5. All tin concentrates from 3 sets 2m2 jig separators go to 6 sets shaking table by gravity. The function of the 6 sets shaking table is further fine separation of tin concentrate so that the finished tin grade gets a big increase.
6. Shaking table generates three outputs: tin concentrate, middlings, and tailing. Middlings may still contain some tin, so in order to increase the tin recovery rate, all middlings from six sets of shaking tables are sent to three sets of shaking tables for reprocessing.
7. Tin concentrate from all shaking tables is the finished product. Tailings from all shaking tables go to the tailing pond.
8. After the tin concentrate are naturally dry under the sun, send them to three discs magnetic separator for dry separation out the tin, iron, coltan, and other weakly magnetic minerals.

  • The whole flowsheet greatly increases tin grade as it totally adopts four stages of gravity separation to increase the tin grade, including 2 stages of jig separation and 2 stages of shaking table separation. this flowchart design meets with customer’s requirement for a high grade.
  • Another advantage of this flowchart solution is eco-friendly,dont use any chemical processes, very healthy for workers.
    Because of these two advantages, this flowchart solution is loved by customers.

Professional Mineral Beneficiation Equipment, Solutions & Services

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Tin ore mining plant design

100TPH Alluvial Tin Ore Processing Plant In Congo
100TPH Alluvial Tin Ore Processing Plant In Congo
Rock tin processing plant
50TPH Rock tin processing plant

tin ore mining equipment list

The mining process of tin ore and the configuration of tin ore equipment need to be determined according to the nature and characteristics of the ore. Choose us to be able to purchase tin ore mining equipment, we have professional engineers, and understand the process of tin ore beneficiation.

JXSC designed shaking table work with gold centrifugal concentrator
Shaking Table
Jaw Crusher
Jaw crusher
jig concentrator
Jig Separator
Cone Crusher
Cone Crusher
JXSC gold wash trommel
Trommel Scubber
Trommel screen for gold wash processing
Trommel screen
Three Disc Dry Magnetic Separator
Three Disc Magnetic Separator
Eastman High-Frequency Vibrating Screen
Vibrating Screen

Tin ore processing plant for sale

In the actual beneficiation process, the selection of tin ore beneficiation process and equipment is often determined according to various factors such as the nature of tin ore, dressing plant conditions, and investment budget. If you want to separate tin ore more economically and environmentally, you should first conduct a beneficiation test, comprehensively analyze the properties of the ore, and obtain a scientific beneficiation test report. In order to judge which tin ore beneficiation process and the specific type and model of tin ore beneficiation equipment to use, in order to achieve the ideal return on investment.

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featured products

5/5

shaker table

Capacity: 0-60T/d
Feeding Size: <2mm
Concentration: 15%-30%

5/5

gold trommel

Gold trommel scrubber can effectively wash and sieve ore material which contains sticky clay, mud, prevents clogging.
5/5

mineral Jig

Capacity: 1-20 TPH
Feeding: 2~18mm
Application: alluvial gold, coltan,tin, etc