MINERAL PROCESSING EQUIPMENT

The GTGB permanent magnet high-field plate magnetic separator is a patented product developed and manufactured by Guote Mining Equipment. It features high-gradient, high-field strength magnetic separation. It integrates magnetic and gravity separation, enabling targeted separation of weakly magnetic minerals based on the ore’s distinct magnetic characteristics. It is widely used in the wet processing of non-metallic ores for iron removal and purification, and is particularly suitable for wet iron removal of non-metallic ores such as quartz sand and potassium-sodium feldspar. It also demonstrates excellent separation performance for weakly magnetic minerals such as hematite, limonite, specularite, siderite, manganese ore, and tantalum mud.

The GTGB permanent magnet high-field plate magnetic separator primarily consists of a channel steel frame, a lower trough, a magnetic support frame, a drive roller assembly, a plate magnetic system, a conveyor belt, a reduction motor, a feed box, and an automatic ore flushing device.

GTGB permanent magnet high field strength plate magnetic separator product advantages: (1) The magnetic system of this equipment is made of high-performance rare earth neodymium iron boron material, with a wide pole surface, a large number of magnetic poles, high magnetic induction intensity, and a large magnetic field gradient. The local maximum magnetic field can reach 15,000 gauss, which is close to the magnetic field strength of a high-gradient electromagnetic magnetic separator. (2) The magnetic system group adopts a flat plate arrangement structure, which has a larger magnetic field sweeping area than traditional magnetic separators and better iron separation effect. (3) The magnetic system mechanism and conveyor belt are both installed on an adjustable carrier. The horizontal angle of the carrier can be adjusted quickly and easily to control the flow rate of the slurry in the magnetic separation area, so as to better select the magnetic materials in the slurry. (4) The reduction motor of a well-known brand is used, which is reliable and durable. The conveyor belt can be adjusted in time according to the different material shapes of the magnetic materials in the slurry to achieve better iron removal effect. (5) The conveyor belt is made of high-strength and high-quality composite materials, with a long service life and obvious unloading effect. (6) The feed box adopts a double-layer perforated plate structure, which ensures smooth and uniform distribution of materials and a thin slurry layer. It is equipped with upper and lower high-pressure water automatic ore flushing devices. The upper ore flushing device is responsible for flushing the non-magnetic ore slurry mixed with the magnetic material, and the lower ore flushing device uses high-pressure water to flush the magnetic material particles attached to the conveyor belt.

The GTGB permanent magnet high-field plate magnetic separator operates as follows: ore slurry is fed into the feed box through an inlet pipe. After thorough dispersion, it is evenly distributed on the conveyor belt above the plate magnetic system. Under the influence of gravity, the slurry flows downward along the inclined conveyor belt. The non-magnetic slurry eventually flows into the non-magnetic slurry hopper in the lower trough. The high-intensity magnetic field, reaching up to 15,000 gauss, firmly attracts the magnetic material contained in the slurry to the conveyor belt. The motor drives the drive roller assembly, moving the conveyor belt and the magnetic material on it upward along the inclined direction. The magnetic material on the conveyor belt then enters the non-magnetic field area. Under the influence of gravity and high-pressure flushing water, the magnetic material and the flushing water flow into the magnetic slurry hopper in the lower trough.

The GTGB plate magnetic separator, used in conjunction with the GTLH vertical ring magnetic separator, can maximize the separation of fine-grained, weakly magnetic materials contained in the slurry. It is a core equipment for iron removal and impurity removal in non-metallic ore beneficiation.

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.