Mineral processing equipment
PTMS MAGNETIC SEPARATOR
what is magnetic separation used for？
Magnetic separation is an indispensable process in the production process of quartz sand. Its advantage is strong selectivity. The quartz sand magnetic separation equipment removes the upper magnets such as ferric oxide and biotite in the quartz sand through high field strength. The highest field strength of quartz sand magnetic separation equipment can reach 16000 GS, and the iron removal effect is excellent. High levels of quartz sand production are also achieved while maintaining effective removal of impurities. The magnetic separation process can remove the weak magnetic impurity minerals such as hematite, limonite and siderite including continuous particles. Strong magnetic separation usually uses a wet magnetic separator or a high gradient magnetic separator. In general, quartz, which is mainly composed of weak magnetic impurities such as limonite, hematite, and biotite, can be selected by using a wet magnetic machine at 1.6 T or more; For strong magnetic minerals, it is better to use a weak magnetic machine or a medium magnetic machine for sorting. The results show that the magnetic separation number and the magnetic field strength have an important influence on the selection effect. With the increase of the number of magnetic separations, the iron content decreases gradually, and a certain magnetic field strength can remove most of the iron, but the magnetic field strength thereafter. Even if it is improved a lot, the iron removal rate does not change much.
First, first weak magnetic and strong magnetic
The mechanical iron ferromagnetic mixed in the crushing process of quartz sand is strong. It should be removed by weak magnetic separation equipment first, and then the weak magnetic impurities are removed by strong magnetic separation equipment: if the content of strong magnetic material is large, strong magnetic separation is adopted directly. In addition to iron, the strong magnetic material is easy to block the strong sorting channel and affect the sorting index.
Second, high-precision sorting can be used for dry sorting
In the process of removing iron and purifying high-purity non-metallic ore with relatively coarse particle size, a dry strong magnetic separation method can be used. In the sorting process, the material is managed to pass the single layered loose state through the strong magnetic field region, and the non-magnetic material There is almost no inclusion between the weak magnetic material and the magnetic material is easily captured when it passes through a strong magnetic field. The precision of iron removal is high, but the processing capacity of this method is generally small.
3. Wet sorting when using fine particles
For fine-grained or fine-grained minerals, the mutual adsorption between the particles is enhanced, and the inclusion between the magnetic and non-magnetic materials is severe. If dry sorting is used, it is difficult to remove the magnetic material, and the wet method is generally required. In the case of wet sorting, an auxiliary manner such as rinsing and pulsation can be generally added to break the inclusion between the magnetic substance and the non-magnetic substance, and the probability that the magnetic substance is captured by the magnetic field is effectively improved.
Fourth, dry sorting can be used for high-speed sorting
In the process of removing iron and purifying high-purity non-metallic ore with relatively coarse particle size, a dry strong magnetic separation method can be used. In the sorting process, the material is managed to pass the single layered loose state through the strong magnetic field region, and the non-magnetic material There is almost no inclusion between the weak magnetic material and the magnetic material is easily captured when it passes through a strong magnetic field. The precision of iron removal is high, but the processing capacity of this method is generally small.
Fifth, choose the appropriate sorting granularity
The particle size of the material is very important for the sorting effect. In the case of meeting the product particle size requirements, the iron removal operation should be carried out at a coarser particle size. Because the finer the particle size, the more the number of breaks, the more mechanical iron is mixed in, the processing capacity of the equipment is also reduced, and the production cost is increased.
sixth. Avoid secondary mixing of iron impurities
The processing process of non-metallic ore is relatively simple. After the iron removal operation, try not to crush or sift again. In the process design, the magnetic separation and iron removal should be placed as far as possible to avoid the iron impurities. Mixed in.
The water-cooled electromagnetic slurry program-controlled automatic magnetic separator is suitable for metal ore rough selection and non-metallic ore purification. Purification and removal of non-metallic minerals such as quartz, feldspar and kaolin. Other industries: wastewater treatment in steel plants and power plants.
The water-cooled electromagnetic slurry automatic iron remover produced by Wanjiade is a new type of high-efficiency magnetic separator. The deionized water is circulated in the hollow copper tube by a circulation pump, and the heat generated by the energized copper tube is taken away. Based on this special structure, the water-cooled electromagnetic slurry automatic iron remover has the following advantages; high magnetic induction intensity; small internal temperature and long working period; strong adaptability to ore ore feeding size and concentration, high beneficiation efficiency; convenient operation and maintenance.
