Product Description of Wet Magnetic Separator
The CTB wet magnetic separator produced by our company is suitable for wet magnetic separation of materials such as magnetite, pyrrhotite, roasted ore, ilmenite, etc., with particle sizes below 3mm. It is also used for iron removal operations in coal, non-metallic minerals, building materials, and other materials.
The magnetic system of the wet magnetic separator is made of high-quality ferrite material or combined with rare earth magnets. The average magnetic induction intensity on the drum surface of the double-drum wet magnetic separator is 100-600mT. According to user needs, we can provide various types of magnetic separation with different surface strengths, including co-current, semi-counter current, and counter current. This magnetic separator has the advantages of simple structure, large processing capacity, easy operation, and convenient maintenance.
I. Introduction to the Equipment of Wet Magnetic Separator
The wet magnetic separator is one of the most widely used and versatile machine models in the industry. It is used for removing iron powder from powdered granular materials. The magnetic separator is widely applied in resource recycling, wood industry, mining, ceramics, chemical, food, and other factories. The magnetic separator is suitable for wet magnetic separation of materials such as magnetite, pyrrhotite, roasted ore, ilmenite, etc., with particle sizes below 3mm. It is also used for iron removal operations in coal, non-metallic minerals, building materials, and other materials. The magnetic system of the magnetic separator uses high-quality ferrite material or is combined with rare earth magnets. The previous average magnetic induction intensity on the drum surface was 100-600mT. Currently, due to technological advancements, the magnetic separator can be made into a roller shape, and the magnetic field strength has increased to 1644.3T, which is currently the highest measured magnetic field strength.
II. Working Principle of Wet Magnetic Separator Equipment
After the pulp flows into the tank through the feed box, under the action of water from the feed spray pipe, the mineral particles enter the feed area of the tank in a loose state. Under the influence of the magnetic field, the magnetic mineral particles form "magnetic clusters" or "magnetic chains" due to magnetic aggregation. These "magnetic clusters" or "magnetic chains" are affected by the magnetic force in the pulp and move towards the magnet pole, attaching to the drum. Since the poles of the magnet are alternately arranged along the direction of rotation of the drum and remain fixed during operation, when the "magnetic clusters" or "magnetic chains" rotate with the drum, they produce magnetic stirring due to the alternating poles. Gangue and other non-magnetic minerals trapped in the "magnetic clusters" or "magnetic chains" fall off during the flipping process. The "magnetic clusters" or "magnetic chains" eventually adsorbed on the drum surface are the concentrates. The concentrates follow the drum to the edge of the magnetic system where the magnetic force is weakest, and are discharged into the concentrate tank under the action of the flushing water jetted out by the unloading water pipe. If it is a fully magnetic roller, the unloading is done using a brush roller. Non-magnetic or weakly magnetic minerals are left in the pulp and are discharged outside the tank with the pulp, forming tailings.
III. Basic Structure of Wet Magnetic Separator Equipment
The wet magnetic separator mainly consists of six parts: the drum, the roller, the brush roller, the magnetic system, the tank body, and the transmission part. The drum is made by welding 2-3mm thick stainless steel plates into a cylinder, and the end caps are made of cast aluminum or workpieces, connected to the drum with stainless steel screws. The motor drives the drum, magnetic roller, and brush roller to rotate through a reducer or directly via an infinitely variable speed motor. The magnetic system is an open magnetic system, installed inside the drum or exposed as a fully magnetic one. The magnetic blocks are mounted on the bottom plate of the magnetic yoke with stainless steel bolts, and the shaft of the magnetic yoke extends outside the drum. A lever arm is fixed at the end of the shaft. By moving the lever arm, the magnetic system's tilt angle can be adjusted. After adjusting appropriately, it can be fixed with a pull rod. The working area of the tank body is made of stainless steel, while the frame and other parts of the tank body are welded from ordinary steel.