CGC Series Cryogenic Superconducting Magnetic Separator

This series of products has an ul- tra-high background magnetic field that cannot be achieved by ordinary electromagnetic equipment, and can effectively separate weakly magnetic substances in fine-grained minerals.It is suitable for beneficiation of rare met- als, non-ferrous metals and non-metal- lic ores, such as cobalt ore enrichment, impurity removal and purification of kaolin and feldspar non-metallic ores, and can also be used in sewage treat- ment and seawater purification and other fields.

Working Principle

The superconducting magnetic separator utilizes the characteristic that the resistance of the superconducting coil is zero at low temperature,Use a large current to pass through the superconducting coil immersed in liquid helium, and be excited by an external DC power supply, so that the superconducting magnetic separator can reach a background mag- netic field strength above 5T,The surface of the magnetically conductive stainless steel Matrix in the separation chamber generates a huge high-gradient magnetic field, which can reach more than 10T, which can effectively separate magnetic substances and it is the ultimate method in the magnetic separation beneficiation field.

The sorting mechanism consists of three virtual cylinders and two sorting cylinders. The sorting cylinder and the virtual cylinder can achieve magnetic balance, so that the sorting mechanism can move in the magnetic field under the action of a small external force.

The sorting mechanism is driven by the motor and the belt drive system to reciprocate within a set interval. The separation process is that one separation cylinder sorts the pulp in the magnet with a background field strength above 5T, and the other separation cylinder is cleaned outside the magnet. Since there is no magnetic field, the ore particles are not affected by the magnetic force, and the steel wool is washed with high-pressure water,the magnetic substances adsorbed on it are discharged with the water flow, the sorting cylinder working in the magnet is moved out of the magnet, and the cleaned sorting cylinder returns to the magnet to sort the pulp, and the cycle is repeated,there is always a sorting cylinder in the magnet to sort the pulp, which greatly improves the production efficiency.

Technical Features

High background magnetic field strength, the coil made of Nb-Ti superconducting material has a magnetic field strength of more than 5T, while the field strength of a conventional magnet is generally less than 2T, that is 2-5 times than the traditional product.

Strong magnetic field force ,under the background field strength above 5T, the surface of the magnetically perme- able matrix in the separation chamber generates a very large magnetic force, which can effectively separate weak magnetic impurities, greatly improve the quality of non-metallic minerals, and meet the requirements of high-end products.

Zero volatility of liquid helium ,the 1.5W/4.2K refrigerator can continue to refrigerate, so that the liquid helium does not volatilize outside the magnet, ensuring that the total amount of liquid helium remains unchanged, and there is no need to replenish liquid helium within 3 years, reducing maintenance costs.

Low energy consumption, using low-temperature superconducting technology, the resistance of the coil is zero af- ter reaching the superconducting state. The refrigerator that only needs to maintain the low temperature state of the magnet works, which saves more than 90% of electricity compared with the normal conduction magnet.

Short excitation time. It is less than 1 hour.

The dual cylinders are alternately sorted and washed, and can run continuously without demagnetization, which improves production efficiency. The 5.5T/300 type superconducting magnetic separator can process kaolin up to 100 tons/day of dry ore, and the 5T/500 type superconducting magnetic separator can process 300 tons/day of kaolin.

The whole process is controlled by microcomputer, and the parameters can be collected in real time, which is ben-

eficial to production control and quality control.

The equipment runs stably, the maintenance cost is extremely low, the magnet has a long service life, light weight

and easy installation.