Patent ID: 8211299
Filing Date: 2012-07-03
Classification: B03C

Abstract:
1. An apparatus for removing iron powder from rolling oil, comprising: a frame disposed above an oil tank containing rolling oil mixed with iron powder; a panel-shaped magnetic unit vertically supported on the frame and moved up and down by elevating means to be located inside or above the oil tank, the magnetic unit having a magnetic surface to which the iron powder is attached; and a scraper unit disposed at one side of the frame so as to be transverse to the magnetic unit, the scraper unit comprising a scraper allowing the magnetic unit to pass therethrough, the scraper being brought into contact with and detached from the magnetic unit while separating the iron powder from the surface of the magnetic unit in a state of contacting the surface of the magnetic unit, and a chute disposed under the scraper to collect the iron powder, wherein the magnetic unit comprises a unit frame defining a circumference of the magnetic unit and a plurality of magnetic bars are in parallel and longitudinally arranged inside the unit frame, wherein the apparatus comprises a control unit, and the control unit is configured such that the scraper can come into contact with the magnetic unit when the magnetic unit is moved downward, and the scraper can be detached from the magnetic unit when the magnetic unit is moved upward, and the magnetic unit temporarily stops in a raised state.