Separation shafts
Use
Permanentmagnetic separating drums with housing are supplied single-sided, double-sided and multistage separating shafts, depending on their task and purpose. Everywhere that it is a question of automatically separating foreign iron items from bulk goods of all types, such as sand, grain, coffee, granulates, etc., permanentmagnetic sorting drums with housing are used with great success.
Design
The separating shaft essentially comprises a rugged, enclosed sheet steel housing with feeding hopper, deflector plates and guiding plates, throughput regulating system, bulk goods level regulating system, aspiration fitting, magnetic roller, drive motor, magnet zone adjustment system and separate outlets. The housing is made of sheet steel, sheet manganese and sheet stainless steel because of the various internal functional areas. The permanentmagnetic separating drums are manufactured using high-quality magnetic materials. Their ideal design and construction guarantees a high capability in separating ferromagnetic parts from bulk materials.
Operation
The bulk materials which are to be separated are fed to the feeding hopper as uniformly as possible over the entire width and length of the shaft. The bulk goods should be fed in such a way that the feeder wedge can divide up the flow of the material.
Deflector plates and guiding plates as well as the bulk goods level regulating system which is to be actuated from outside are used to equalize and turn the flows of material. Possible accumulations of material are distributed and then transferred to the separating drums at a tangent.
The separating drums comprise a fixed magnet system, which has an action over an angle of approx. 210°, so that a marked zero zone (magnetically neutral zone) is generated on the opposite side. The position of the effective magnet systems can be adjusted from outside. A stainless steel shell with a discharge strip rotates around this magnet system.
While the flow of material passes the roller shell which is rotating in the same direction, the ferromagnetic contaminants which are in the bulk goods are removed and discharged into separate shafts by the discharge strips at the ends of the magnetic fields - in the zero zones of the drums.