Tungsten ore selection technology

Tungsten is an important metallic element widely used in fields such as aviation, aerospace, electronics, chemical engineering, metallurgy, etc. Tungsten ore is the main source of tungsten, so the development of tungsten ore selection technology is crucial for the development of the tungsten industry. This article will introduce the basic principles, common beneficiation methods, and operational steps of tungsten ore processing technology.

1、 Basic principles of tungsten ore selection technology

Tungsten ore separation technology refers to the technology of separating and extracting tungsten ore through physical, chemical, or biological methods. The basic principle is to use the differences in physical and chemical properties between tungsten minerals and other minerals in tungsten ore to separate them and achieve the extraction of tungsten.

II. Common beneficiation methods

1. Reselection method

The gravity separation method refers to the method of separating minerals by utilizing their different settling velocities in the gravity field. This method is suitable for tungsten ores with larger particle sizes. The commonly used equipment for gravity separation method includes gravity concentrators, spiral separators, etc.

2. Flotation method

Flotation method refers to the method of separating minerals by utilizing their different hydrophilicity in water. This method is suitable for tungsten ores with smaller particle sizes and similar mineral densities. The commonly used equipment for flotation methods include flotation machines, air flotation separators, etc.

3. Magnetic separation method

Magnetic separation method refers to the method of separating minerals by utilizing their different magnetic properties in a magnetic field. This method is suitable for tungsten ores with significant magnetic differences. The commonly used equipment for magnetic separation method includes magnetic separators, high gradient magnetic separators, etc.

4. Electric separation method

Electric separation method refers to the method of separating minerals by utilizing their different conductivity in an electric field. This method is suitable for tungsten ores with significant differences in conductivity. The commonly used equipment for electric separation method includes electric separation machines, high-voltage electric field separation machines, etc.

3、 Operating Steps

Taking the gravity separation method as an example, introduce the operating steps for selecting tungsten ore:

1. Ore crushing: Crush the raw ore into appropriate particle size, usually 10-30mm, through a crusher.

2. Ore screening: The crushed ore is screened by a screening machine to separate smaller sized ores.

3. Gravity separation: The screened ore is subjected to gravity separation using a gravity concentrator to separate tungsten minerals from other minerals.

4. Concentration: The tungsten ore after gravity separation is concentrated through a thickener to obtain a tungsten containing concentrate.

5. Selection: The tungsten concentrate is selected through a selection machine to obtain a tungsten concentrate with higher purity.

4、 Summary

The technology of selecting tungsten ore is an important support for the development of the tungsten industry. Its basic principle is to use the differences in physical and chemical properties between tungsten minerals and other minerals in tungsten ore to separate them and achieve the extraction of tungsten. Common beneficiation methods include gravity separation, flotation, magnetic separation, and electric separation. In practical operation, it is necessary to select appropriate beneficiation methods according to the different characteristics of ore and operate according to the operation steps to obtain high-quality tungsten concentrate.