High Gradient Vertical Ring Magnetic Separator

Designed and manufactured by Weifang Guote Mining Equipment Co., Ltd., the GTLH series vertical ring high-gradient magnetic separator is a high-performance, technologically advanced high-magnetic separation device renowned both domestically and internationally. It is widely used for the beneficiation of weakly magnetic minerals such as hematite, limonite, siderite, ilmenite, and wolframite, as well as for the iron removal and purification of non-metallic minerals such as quartz, feldspar, nepheline, and kaolin. It boasts excellent beneficiation performance, low energy consumption, minimal maintenance, high reliability, and robust adaptability to ore properties, resulting in an average operating rate exceeding 99%.

The GTLH vertical ring high-gradient magnetic separator primarily consists of a frame, lower core and discharge chute, lower yoke and magnetic columns, excitation coil and cooling system, upper core and yoke, non-magnetic swivel, magnetic media cartridge, feed hopper, rinse hopper, concentrate hopper, middling hopper, tailings hopper, concentrate flushing device, level hopper, swivel drive mechanism, pulsating mechanism, and electrical control cabinet.

The excitation coil of the GTLH vertical ring high-gradient magnetic separator utilizes high-quality conductors and a multi-layer, three-dimensional, cross-winding structure. The oil circuit is unobstructed and well-connected. The coil winding provides high mechanical strength, strong deformation resistance, high insulation strength, a large heat exchange area, and excellent heat dissipation. The excitation coil is immersed in cooling transformer oil and cooled by the forced flow of the cooling oil pump. The heated cooling oil is pumped to an external, high-efficiency plate heat exchanger. The heat is effectively dissipated through the radiator’s efficient fins, and the cooled transformer oil returns to the excitation coil system, beginning a new cycle of cooling. This cooling method offers rapid cooling, simple structure, easy installation, and a compact footprint. It truly achieves oil-water cooling, is highly efficient and energy-efficient, reduces coil temperature rise, and maintains a stable magnetic field. This method enables the excitation coil to generate a high-gradient magnetic field at low temperatures, with an induced magnetic field strength of up to 2.3 Tesla. The excitation coil is equipped with a comprehensive temperature protection system that displays the operating temperature of each coil in real time and features two-level over-temperature protection. If the temperature exceeds the limit, an alarm is triggered, cutting off the excitation current and placing the equipment into a protective mode.

The magnetic medium utilizes our company’s proprietary structure, ensuring excellent beneficiation performance. With a feed size of 1.2 mm and normal flushing water, the magnetic medium remains clog-free and has a long service life. The swivel drive mechanism utilizes an internationally renowned brand, ensuring stable operation and a long service life. Driven by the stroke box, the pulsating mechanism reciprocates, repeatedly flushing mineral particles adsorbed on the magnetic medium surface with slurry, effectively eliminating mechanical inclusions and improving concentrate grade. The pulsating stroke box utilizes a high-thrust, four-roller reciprocating mechanism, ensuring stable operation over long periods of operation and enhancing equipment availability. The tailings valve features a fluid-resistant design and a special wear-resistant material coating on the inner wall, significantly enhancing its wear resistance. The use of well-known low-voltage electrical components and PLC components ensures safe, reliable operation and a long service life. An advanced soft-start function prevents transient current shock to the coil. The system also features an advanced fault self-diagnosis system with remote assistance capabilities. In the event of a malfunction, fault information is immediately transmitted to the company’s customer service center.

The GTLH vertical ring high-gradient magnetic separator operates as follows: The ring rotates vertically, generating a high-gradient magnetic field within the magnetic medium. Slurry is fed through the ring through the gaps in the upper iron yoke. Magnetic particles in the slurry are attracted to the surface of the magnetic medium and carried to the top, where the ring rotates, to the non-magnetic area. Flushing water then flushes the magnetic material into the concentrate hopper, while non-magnetic slurry flows through the gaps in the lower iron yoke and is discharged into the tailings hopper.