Wolframite is an important tungsten ore, which plays an important role in the production of tungsten. The cleaning process of Wolframite refers to the process of separating Wolframite from raw ore, which is a key link in Wolframite processing. This paper will introduce the cleaning process of Wolframite and its operation steps.
1、 Characteristics of Wolframite
Wolframite is an ore with high hardness, which is usually black or dark brown. The main components of Wolframite are calcium tungstate and iron tungstate, of which the content of calcium tungstate is relatively high, generally more than 60%. The density of Wolframite is relatively high, generally 6.0~7.5g/cm ³ Between.
2、 Cleaning process of Wolframite
The concentration process of Wolframite mainly includes three stages: gravity concentration, flotation and chemical separation. The following will provide a detailed introduction to the process flow and operating steps of these three stages.
1. Re-selection stage
Gravity concentration is the first stage of Wolframite concentration, which aims to separate Wolframite from raw ore. The process flow for re selection is as follows:
(1) Crushing: Crush Wolframite raw ore into small pieces through a crusher.
(2) Screening: the crushed Wolframite raw ore is screened by a screening machine to separate ores with different particle sizes.
(3) Gravity concentration: the screened Wolframite raw ore is subjected to gravity concentration by gravity concentrator to separate Wolframite with high tungsten content.
2. Flotation stage
Flotation is the second stage of Wolframite concentration, which aims to further improve the grade of Wolframite. The flotation process is as follows:
(1) roughing: roughing the Wolframite raw ore after gravity concentration through a rougher to separate Wolframite with high tungsten content.
(2) Intermediate separation: the Wolframite raw ore after rough separation is subjected to intermediate separation by the intermediate separator to separate the Wolframite with higher grade.
(3) Cleaning: the Wolframite raw ore after the middle separation is cleaned by the cleaning machine to separate the highest grade Wolframite.
3. Chemical sorting stage
Chemical separation is the third stage of Wolframite concentration, which aims to further improve the grade of Wolframite. The chemical separation process is as follows:
(1) Leaching: leach the cleaned Wolframite raw ore through the leaching machine to separate the Wolframite with high tungsten content.
(2) Precipitation: the leached Wolframite solution is precipitated by a precipitator to separate Wolframite with higher grade.
(3) Drying: the precipitated Wolframite is dried by a dryer to obtain the highest grade Wolframite.
3、 Conclusion
The cleaning process of Wolframite is the process of separating Wolframite from raw ore, and is the key link in Wolframite processing. The concentration process of Wolframite mainly includes three stages: gravity concentration, flotation and chemical separation. In actual operation, appropriate equipment and process parameters should be selected according to the characteristics and process flow of Wolframite to improve the grade and output of Wolframite.
