Core Tech of Auto Magnetic Separator for Fine Metal

Our magnetic separator solves problems such as the need to stop the machine to clean impurities, inability to use under positive pressure conditions, large raw material loss, and low iron removal efficiency in existing manual permanent magnet iron removal equipment. It allows each layer of magnetic frame components to independently perform cleaning actions, enabling continuous online cleaning without the need to stop the system, resulting in high work efficiency. Additionally, through the design of the control system, it can monitor data, observe equipment operating status, alert for equipment failures, and provide more intuitive and convenient interaction with users.

2. Core Technology of our Magnetic separator

2.1. Continuous online powder permanent magnet automatic iron removal technology

Achieves dynamic sealing of the filter chamber, slag discharge chamber, and dustproof chamber through the application of dual-sealing technology.

Each layer of magnetic frame components is equipped with independent execution mechanisms and unique scraper ring components, enabling each layer of magnetic frame components to independently perform cleaning actions.

Cleaning can be done without stopping the system, achieving continuous online cleaning with good cleaning effect, high efficiency, and no dust leakage during the filtering or cleaning process.

2.2. Powder permanent magnet automatic iron removal anti-blocking technology enhances the rigidity of the magnetic frame structure through the application of a dual-support magnetic frame structure. A vertically adjustable eddy current vibrator is installed, along with a program control system and an optoelectronic blocking material detection system. When a material bridge blockage occurs on the magnetic frame, the optoelectronic detection system immediately feeds back to the program control system, and the eddy current vibrator executes vibration to quickly break the blockage, ensuring smooth material flow and improving the iron removal effect

2.3. .Low-viscosity slurry automatic iron removal technology integrates the magnetic filtration system and the cleaning system into one unit, with both filtering and cleaning circuits. This solves the problem of needing to disassemble the magnetic filtration system for cleaning. It also addresses the issue of potential pollution of the filtering circuit by the cleaning circuit, even when they are partially collinear.

2.4. Dual-chamber high-viscosity slurry automatic iron removal technology uses a self-developed sealing deflector valve to separate the filtering chamber from the cleaning chamber. The filtering chamber does not need cleaning when there is no material change, allowing it to run for a long time. Impurities on the magnetic rods are treated with scraping, significantly reducing the use of cleaning fluid and drying gas. This design eliminates the need for additional magnetic rod sleeves, ensures a shorter non-magnetic zone length, increases the effective magnetic field intensity of the magnetic rod, reduces the overall length of the iron remover, and improves its adaptability to operating conditions. This technology solves the problems of long downtime for cleaning a single-chamber system and high consumption of cleaning agents and slurry during cleaning.

2.5. High-density solid-liquid mixture automatic iron removal technology combines a self-developed high-density solid-liquid mixture stirring mechanism with automatic demagnetization technology. This addresses the long time and low efficiency typically associated with iron removal from high-density, easily sedimented solid-liquid mixtures. It also solves the issues of poor iron removal effect and difficult cleaning of the iron removal device. The iron removal device and stirring device are integrated, allowing for simultaneous iron removal and stirring. This ensures the uniformity of the slurry during iron removal, greatly improving the iron removal effect for such slurries.

2.6. Particle continuous online magnetic separation technology utilizes complementary designs of high-gradient magnetic rollers and high-absorption magnetic plates to achieve thorough filtration of granular materials during belt conveying. It effectively separates and removes impurities between particles and impurities trapped inside particles, achieving a separation efficiency of over 99%.

2.7 Self-lubricating rotary sealing technology provides initial sealing through the coordination of the transmission shaft and the end cap. Further sealing reliability is achieved through the coordination of the graphite ring and the transmission shaft, with multiple graphite rings used to enhance the seal and reduce damage rates. The graphite ring, made of PTFE, improves sealing and provides self-lubrication. The combination of multiple bearings increases support width and support strength, improving the overall rigidity of the transmission shaft and reducing wear on the graphite ring, thus increasing its service life.

2.8. Hygienic-grade rotary air-tight sealing technology

This technology inflates the space between the left and right shaft seals using vent holes and air pipes to ensure that the air pressure between the left and right shaft seals is higher than that on both sides of the shaft seals, forming an effective air-tight sealing structure. The O-ring, combined with the left and right shaft seals, compensates for wear on the shaft seals while forming a secondary seal, improving the air-tight sealing and ensuring no impurities or material residues inside the sealing chamber. The shaft seals, made of hygienic-grade PTFE material, achieve self-lubrication when in contact with the transmission shaft. The multi-level sealing structure greatly improves the sealing of the bearing and transmission shaft support positions, meeting hygienic-grade requirements. Permanent magnet bar automatic demagnetization technology allows the magnetic bar group to move within the outer sleeve through the design of a piston motion seal for the magnetic bar group, eliminating the need for an exteal power source for the magnetic bar. This reduces the overall length of the magnetic bar. The magnetic bar group remains stable and centered while moving in the sleeve, ensuring uniform magnetic field intensity on the outer sleeve surface and preventing wear and offset of the magnetic bar group due to self-movement. Permanent magnet magnetic circuit design technology designs various proportions and arrangements based on the magnetic field distribution and magnetic material characteristics of permanent magnets, achieving different magnetic force outputs and applications through finite element simulation. Continuous online magnetic filtration technology in the high-precision machining field filters submicron substances in cutting fluids through a multi-stage series-parallel design, combining high-gradient magnetic rods with high-gradient magnetic rollers. This technology enables continuous online dry-wet separation.