electromagnetic separator
PTMS MAGNETIC SEPARATOR
what is magnetic separation ?
According to the quality of quartz sand, the beneficiation process technology and beneficiation equipment are custom. Quartz sand is a common non-metallic mineral. Our common quartz sand iron removal process includes mechanical scrubbing, magnetic separation, flotation, ultrasonic cleaning, acid leaching, etc. The process removes iron from quartz sand and increases the use value of quartz sand. Quartz sand removal method quartz sand ore dressing technology:
1. Magnetic separation: The advantage of magnetic separation is that it has strong selectivity. While maintaining effective removal of impurities, it can also obtain high quartz sand production. It is mainly used to remove magnetic minerals in quartz sand. The strong magnetic separator removes the weak magnetic impurity minerals such as hematite, limonite and biotite.
2. Flotation: Commonly used is the fluorine acid method (hydrofluoric acid), adjust the concentration of the slurry with hydrofluoric acid, etc., and then use the collector to select the magazine (Ceramics. Mica and Iron Magazine). Quartz It is discharged in the form of tailings. Because of its good flotation effect, it is easy to control. The index is stable and widely used. However, the fluoride ion has a great impact on the erosion of the land and the surrounding ecological environment. The professional mineral processing manufacturer Tianli magnetic electrode degree is not Recommend everyone to use.
3. Scrubbing: further smashing the unassembled mineral aggregates. The grading operation can further achieve the effect of further purifying the quartz sand. Nowadays there are mainly rod scrubbing and mechanical scrubbing. The main factors affecting the scrubbing effect are the structural characteristics of the scrubber and Configuration form, the secondary factor is the scrubbing time. Scrubbing concentration (scrubbing concentration is generally 50% - 60% is appropriate). However, the film iron on the quartz sand surface is difficult to remove. Therefore, it is only a method of quartz sand pretreatment.
4. Acid leaching: Acid leaching is the use of quartz which is insoluble in acid. Other impurity minerals can be dissolved by acid. It can further purify quartz. These acids have good removal effect on metal impurity minerals in quartz sand. In particular, the removal effect of Fe and Al is obvious. After acid leaching, high purity quartz sand or even ultra high purity quartz sand with a purity of 99.99% can be obtained.
5. Washing. Grading de-sludge: The grade of SiO2 in quartz sand decreases with the finer grain size of quartz sand. The grade of impurity mineral is opposite. This phenomenon is especially obvious in quartz sand containing a lot of clay minerals. The quartz sand ore is washed before the selection. The deliming not only removes the clay minerals, but also removes the fine minerals below 0.1 mm. However, it is difficult to remove the thin film iron and the blocking impurity minerals on the quartz sand surface.
6. Microbial leaching: refers to the use of microorganisms to soak the surface of quartz sand particles of thin film iron or dip iron. This is a newly developed iron-eliminating corpse is currently in the research stage of laboratory and small experiments.
7. Ultrasonic iron removal is mainly to remove the secondary iron film on the surface of the particles. The mechanical scrub used in the beneficiation cannot be separated. The ultrasonic technology is used to treat the natural silica sand containing the "iron film" with short time and high efficiency.
