| 摘要 |
The invention relates to a method which pertains to the separation of pulp which contains magnetic constituents in a wet-magnetic, low-intensity separator of the concurrent type, in which a cylindrical, horizontally mounted rotatable drum coacts with non-rotating magnets disposed in the drum in a manner to convey magnetic constituents in contact with the drum surface to an outlet for magnetic concentrate, and in which method pulp which is depleted of magnetic constituents is separated as waste at a region remote from the concentrate outlet in a direction opposite to the direction in which the drum rotates. The invention is characterized by the combination of delivering the pulp to the separator so as to bring the pulp into contact with the drum at or close to the highest level of the drum; delivering water to the separator in the vicinity of the concentrate outlet such that water will flow in contact with the pulp constituents that accompany drum rotation; and removing the water from the drum together with the waste. The invention also relates to a wet-magnetic separator for carrying out the method, which is characterized by means for delivering pulp to or close to the highest level of the drum, water intake means arranged essentially along the whole length of the drum in the vicinity of the magnetic concentrate outlet. <IMAGE> |
