Magnetic Separator For Crushers

Principles of Tin Ore Separation

Often, we separate tin ore sands through multi-stage grinding process and multi-stage beneficiation process. That is decided by the brittleness of tin ore, that is simply overcrushed when crushed altogether with other ores. Normally there are two to four stages inside the method. The principle of tin ore processing consists of 1 or a lot more measures as shown beneath.

Ore washing process:

Raw supplies, that is muddy and with sturdy cementing house, have to be washed and rid of muds ahead of the separation method. We are able to conduct the separation approach in the cylinder ore washer, troughed ore washer, or execute the procedure within a plant assembled by numerous machines.


We usually adopt cone classifier(desliming cone) and hydrocyclone for ore desliming. This sort of hydrocyclone tends to become small having a diameter of 125mm, 75mm, 50mm and even >5mm.


The separation of tin ore has special requirements about ore crushing, screening and grading. The crushed (including grinded) particles must reach but not exceed the original size when the components haven't been separated. This step will ensure that the tin ores are separated without being overcrushed. We usually attempt to avoid overcrushing by performing multi-stage grinding and separation processes.


Usually, we carry out screening in preparation for jigging.


We ordinarily grade the ores just before tabling. Screening and grading are commonly adopted to control the size of particles being crushed.


Mixing by gravity concentration is entirely different from mixing by flotation. This step provides the density, fineness and suspension state designed for later steps.

Heavy-media method:

The technique was developed in the late 1970s. In China, we generally use dense-media cyclone to carry out the procedure. In 1980s, the UK and Australia invented DWP variety whirlpool separator; The technique could cast off over 20% to 25% of waste, making it efficient in economic term.

Technical approach of tin ore separation

Zenith is a professional manufacturer of in producing the tin ore separation equipment. The dressing method mainly consists of three methods:

(1) Magnetic separation of crude ore
Crude ores have to be megnetic separated ahead of being delivered to the processing plant. To some degree, we may call the step megnetic grading( relative to size grading). The non-magnetic and magnetic particles obtained inside the step will be processed in gravity concentration course of action separately. The procedure of non-magnetic part is easier and has higher recovery rate and concentration grade. The approach of magnetic part, however, is much harder, and the concentration grade produced by the method is very poor, consisting of rich middlings or even poor middlings. The procedure of other parts is much the same.

Magnetic Separator For Crushers

(2) Magnetic separation of low grade concentration
As described above, low grade concentration has much iron-bearing minerals in it. The feature makes magnetic separation very effective in processing the ores.

(3) Magnetic separation of concentration
When we course of action the non-magnetic and magnetic parts via magnetic separation, we need to make sure that the tin ores and iron-bearing minerals are separated apart. However, the method is contradictory to the goal of avoiding overcrushing as much as possible. Concentration with iron-bearing minerals could be fully grinded, making the risk of overcrushing smaller. Therefore, the method is much additional preferred in practice.


Techniques to course of action tin ore is based on the own characteristics of the mineral. As tin ore has higher density than other ores, we normally adopt gravity concentration to approach tin ores. As time goes on, the selected tinstone of the mineral's particle size is always changing fine, so the flotation method of tinstone appears.
Furthermore, as tin ores usually exist in mixture with other iron oxides, such as magnetite, hematite and limonite, neither flotation separation nor gravity concentration does well in tin ore separation. Recently, people have introduced magnectic separation to make up for this flow.


Simply complete the form below, click submit, you will get the price list and a Zenith representative will contact you within one business day. Please also feel free to contact us by email or phone. ( * Denotes a required field).