Gravity beneficiation equipment for yellow tin placer ore

Gravity beneficiation equipment for yellow tin placer ore

Yellow tin placer ore is a type of ore with high tin content, and gravity beneficiation equipment is a commonly used beneficiation equipment that can separate the ore through physical methods, achieving the goal of improving ore grade and recovery rate. This article will introduce the operating steps and precautions of the gravity beneficiation equipment for yellow tin placer ore.

1、 The characteristics of yellow tin placer ore

Yellow tin placer is a kind of ore with high tin content. Its main components are cassiterite, quartz, Pyrite, etc. Cassiterite is the mineral with the highest tin content, generally accounting for over 70% of the ore weight. The hardness of yellow tin placer ore is relatively low, usually ranging from 2 to 3 levels, making it easy to break and wear.

2、 Types of gravity beneficiation equipment

Gravity beneficiation equipment mainly includes flotation machines, heavy medium beneficiation machines, centrifuges, vibration beneficiation machines, spiral beneficiation machines, etc. Different equipment is suitable for different ore properties and beneficiation processes. The commonly used equipment for gravity beneficiation of yellow tin placer ore are centrifuges and spiral separators.

III. Operating Steps of Centrifuge

A centrifuge is a device that uses centrifugal force to separate ores, and its operating steps are as follows:

1. Crush the yellow tin sand ore to a certain particle size through a jaw crusher or cone crusher.

2. Sieve the crushed ore through a vibrating screen to separate the ore with a particle size less than 0.5mm.

3. Mix the separated ore with water to form a suspension.

4. Separate the suspension through a centrifuge, where heavy substances are centrifuged to the outer side and light substances are centrifuged to the inner side of the centrifuge.

5. The separated heavy substances are discharged through the drainage port, while the light substances are discharged through the overflow port.

4、 Precautions for centrifuges

When using a centrifuge for gravity beneficiation of yellow tin placer ore, the following points need to be noted:

1. The speed of the centrifuge should be adjusted based on the ore properties and beneficiation process flow. Excessive or insufficient speed can affect the separation effect.

2. The feed rate of the centrifuge should be controlled within a certain range, as either too large or too small can affect the separation effect.

3. The maintenance and upkeep of the centrifuge should be timely and the equipment's various indicators should be checked regularly to ensure the normal operation of the equipment.

5、 Operating Steps of a Spiral Sorter

A spiral separator is a device that separates ore through spiral blades, and its operating steps are as follows:

1. Crush the yellow tin sand ore to a certain particle size through a jaw crusher or cone crusher.

2. Sieve the crushed ore through a vibrating screen to separate the ore with a particle size of less than 2mm.

3. Mix the separated ore with water to form a suspension.

4. The suspension is separated by a spiral separator, where heavy substances are transported upwards by the spiral blades and light substances are transported downwards by the spiral blades.

5. The separated heavy substances are discharged through the drainage port, while the light substances are discharged through the overflow port.

6、 Precautions for Spiral Sorter

When using a spiral separator for gravity beneficiation of yellow tin placer ore, the following points need to be noted:

1. The spiral blades of the spiral separator should be adjusted according to the ore properties and beneficiation process flow, as high or low temperatures can affect the separation effect.

2. The feed rate of the spiral sorting machine should be controlled within a certain range, and either too large or too small will affect the separation effect.

3. The maintenance and upkeep of the spiral sorting machine should be timely and the equipment's various indicators should be checked regularly to ensure the normal operation of the equipment.

7、 Conclusion

The gravity beneficiation equipment for yellow tin placer ore is an important equipment for improving ore grade and recovery rate. Centrifuges and spiral separators are commonly used gravity beneficiation equipment. When using these equipment for gravity beneficiation of yellow tin placer ore, it is necessary to select and adjust according to the ore properties and beneficiation process flow. At the same time, it is also necessary to pay attention to the maintenance and upkeep of the equipment to ensure its normal operation.

Gravity beneficiation equipment for yellow tin placer ore