The HTDZ electromagnetic slurry magnetic separator is the latest magnetic separation product developed by our company. The background magnetic field reaches 1.5T and the magnetic field gradient is large. A variety of special magnetic stainless steel media can be selected according to different materials. It is mainly used in non-metallic mines: For the purification and impurity removal of minerals such as quartz, feldspar, kaolin, ceramic clay, gold tailings, etc., the products have been serialized at present, and the maximum diameter of the sorting cavity has reached 2 meters. The product adopts PLC programming and automatic control, reliable operation, simple and convenient operation.
Working principle of HTDZ electromagnetic high gradient magnetic separator
The excitation coil is energized to generate a magnetic field, so that the surface of the medium in the sorting cavity induces a high field strength, forming a high-gradient magnetic field beneficiation environment. The pulp enters the sorting chamber through the pulp inlet pipe at the bottom of the equipment, and the magnetic substance and non-magnetic substance are separated through the adsorption of the magnetic substance in the pulp by the medium.
Technical characteristics
1. The coil adopts oil-water composite cooling technology
(1) The excitation coil, the core component of the electromagnetic high-gradient magnetic separator, adopts a fully sealed structure, which is rain-proof, dust-proof and anti-corrosion, and can work in various harsh environments.
(2) The coil is completely immersed in transformer oil, and is cooled by an oil-water heat exchanger. The heat dissipation is fast and the temperature rise is low, so that the excitation coil is always maintained at a lower temperature and the magnetic field fluctuates little, which ensures the high gradient magnetic separator. Safe operation and reduction of energy consumption.
2. Use high-performance magnetic media
The medium adopts special magnetic conductive media of different shapes, which can generate a gradient magnetic field of more than 2 times under the excitation of a background magnetic field, which is suitable for iron removal and purification of minerals of different particle sizes.
3. Solid-liquid-gas three-phase unloading technology:
According to the flow characteristics of the material in the sorting chamber, the upper magnetic pole head structure is specially designed to effectively disperse the water flow during washing, avoiding the washing dead zone during iron discharging, and improving the iron discharging effect. At the same time, it is added during washing. Compressed air greatly prolongs the cleaning medium cycle, reduces the amount of flushing water, improves the efficiency of the equipment, and solves the problem of poor beneficiation effect after long-term use.
4. Use multi-pipe multi-point cloth technology:
Traditional high-gradient magnetic separators mostly use a single-pipe slurry feeding method, which is easy to form a slurry feeding dead zone, which affects the use efficiency of the medium, and the effect is very obvious in the large-diameter sorting chamber.
The patented technology of electromagnetic high-gradient magnetic separator is used to uniformly distribute the pulp in the slurry inlet pipe, which successfully solves the problem of uneven distribution of the pulp when the large-scale high-gradient magnetic separator enters the pulp.
5. Adopt current following algorithm and active inverter technology
It is the first time that the current fast follow algorithm and active inverter technology are used in a large inductive load to achieve rapid and precise control of the coil magnetic field, which not only solves the problems of unclean iron unloading and long flushing cycles due to the slow demagnetization and rise of the excitation coil , It also solves the problem of the reduction of the magnetic field caused by the increase of the resistance of the coil in the hot environment in the traditional topology.
Application of HTDZ-1000 electromagnetic slurry high gradient magnetic separator in a kaolin concentrator in Guangdong
The process flow of the concentrator adopts a coarse-fine test and a coarse-fine open-circuit flow. Because the higher the magnetic field intensity, the greater the excitation power, the higher the energy consumption of the equipment, and the higher the unit production cost. Therefore, the high-gradient slurry magnetic separator for roughing operation uses a background magnetic field of 1.0T, and the high-gradient magnetic separator for selection operation Using 1.8T.
The production results show that the Fe2O3 content of the concentrate can be reduced by about 50% through two high-gradient magnetic separation of electromagnetic slurry, and a good iron removal effect can be obtained.
Typical use case of electromagnetic high gradient magnetic separator
1. The customer site of HTDZ-2000 electromagnetic high gradient magnetic separator in Xiamen
A customer from Xiamen, Fujian, ordered an electromagnetic high-gradient magnetic separator with a separation chamber diameter of 2 meters, which is used to purify kaolin ore. The use effect is good. The diameter of the separation chamber of this equipment is currently the largest model in the world.
2. HTDZ-1500 high gradient magnetic separator Jiangsu customer site
3. HTDZ-1500 electromagnetic high gradient magnetic separator customer site in Zhanjiang, Guangdong
4. HTDZ-1200 high gradient magnetic separator customer site in Zhaoqing, Guangdong
5. HTDZ-1200 high-gradient magnetic separator is used to purify kaolin in a certain mining industry in Hunan.
6. HTDZ-1200 high gradient magnetic separator, used in a certain mining industry in Jiangxi to purify kaolin.
