Cheap Multilayer High Intensity Magnetic Separator

A low-cost, high-intensity multilayer magnetic separator is not a marketing slogan, but a real technical solution for enterprises where every minute of downtime costs thousands of rubles. We saw how at a processing plant in the Kemerovo region the replacement of an outdated single-section separator withcheap multilayer high intensity magnetic separatorreduced the content of ferrous inclusions in quartz sand from 0.82% to 0.019% in one pass - without increasing energy consumption and without rebuilding the conveyor line.

Why does “multilayer” solve problems that single-row systems cannot do?

Single-row magnetic reels operate on the “one chance, one pass” principle. Small, weakly magnetic or dusty particles simply slip between the poles. The multilayer design is not just “another row of magnets.” This is a well-thought-out sequence: the first section captures large ferromagnets, the second - medium ones, the third and fourth - finely dispersed iron oxides and even paramagnetic impurities like hematite. Inside the housing there are up to six independent magnetic cascades with adjustable tilt angle and belt speed. We checked: with the same productivity (35 t/h), a two-section separator reduces the loss of the useful component by 4.7%, because it does not “capture” light non-magnetic grains along with iron.

Key parameters that we control at each stage of assembly:

• Field intensity - from 6000 to 12000 Gauss in the working area (measured with a Lake Shore 475 gaussmeter)
• Field penetration depth - up to 120 mm in a material flow 80 mm thick
• Surface cleaning speed - automatic purge every 45 seconds, without stopping the line
• Resource life of magnetic blocks - 8 year warranty subject to operating conditions

“Cheap” is not about the price tag, but about TCO for the entire life cycle

Some customers compare only the starting price and choose cheap imported analogues. But after 14 months of operation it turns out: three replacements of magnetic plates, two repairs of the drive due to overheating and downtime of 6 hours for each cleaning. Total - overexpenditure on maintenance by 210% of the purchase price. LONGI Corporation models have a different economy. The basic version of LMS-4M (four-layer) costs from 2.1 million rubles, but its design eliminates typical points of failure: sealed neodymium-boron-iron magnetic blocks, reinforced aluminum frames, self-regulating tape tension system. We recorded the average service life before the first major overhaul as 7.2 years. At the same time, energy consumption does not exceed 5.5 kWh/t - 32% lower than that of analogues with the same intensity.

Important: a “cheap high-intensity multilayer magnetic separator” works effectively only if it is selected correctly. We always require a sample of the material - not for sale, but to exclude error. For example, if your raw material contains more than 15% moisture, you need a modification with heated tape. If the fraction is finer than 0.1 mm, add a vibrating distribution nozzle. This is not an option. This is a condition for stable operation.

How to avoid the three most common mistakes during implementation

The first is ignoring the particle size distribution. The separator does not “see” the particle size. It responds to the ratio of mass and magnetic susceptibility. We observed a case where a customer installed a powerful separator on a bauxite processing line, but the efficiency was below 40%. The reason turned out to be inhomogeneous crystallization - part of the iron was included in the structure of aluminosilicates and lost its magnetic properties. The solution is pre-heat treatment before separation. The second mistake is the wrong feed angle. An angle of more than 25° causes the material to “break off” from the belt and a sharp drop in extraction. The third is the lack of a load control system. An overload of 12% reduces the yield of pure product by 37%, because the particles do not have time to stay in the magnetic field.

In practice, we help clients make a choice like this:

1. We analyze the sample in our Fushun laboratory - free of charge, 3 working days
2. We provide a design diagram for separator placement in your process cycle
3. We indicate the exact requirements for the foundation, power supply and ventilation - without “approximate” figures
4. We provide access to a digital twin of the installation for virtual start-up testing

The future is adaptability, not power

The trend of the last three years: separators are no longer a “black box”. New models from LONGI Corporation are equipped with belt load sensors, infrared temperature sensors for magnetic blocks and an IoT module that sends data to the cloud platform. The operator sees not just “working/not working”, but a graph of changes in magnetic permeability in real time, a warning about a decrease in efficiency 72 hours before a critical level and a recommendation for adjusting the speed. This is no longer equipment. This is an element of a digital dual enrichment plant.

Cheap high intensity multilayer magnetic separator is not a compromise between cost and quality. It is the result of 31 years of engineering work, 4,000 installed pieces of equipment and thousands of hours of real-world testing. He works where others refuse. It pays for itself where others require additional payments. You can see it in action on the websiteljmagnet.ru, in the “Video from objects” section.