US 12,239,931 B2
Foreign substance capture apparatus and facility for manufacturing electrical steel sheet including same
Seong-Cheol Hong, Pohang-si (KR); Ki-Young Min, Pohang-si (KR); Dong-Geun Kim, Pohang-si (KR); Oho-Cheal Kwon, Pohang-si (KR); and Chang-Ho Kim, Pohang-si (KR)
Assigned to POSCO, Pohang-si (KR)
Appl. No. 17/777,471
Filed by POSCO, Pohang-si (KR)
PCT Filed Nov. 17, 2020, PCT No. PCT/KR2020/016149
§ 371(c)(1), (2) Date May 17, 2022,
PCT Pub. No. WO2021/101206, PCT Pub. Date May 27, 2021.
Claims priority of application No. 10-2019-0147864 (KR), filed on Nov. 18, 2019.
Prior Publication US 2023/0027665 A1, Jan. 26, 2023
Int. Cl. B01D 46/00 (2022.01); B03C 1/28 (2006.01); B23K 26/08 (2014.01); B23K 26/12 (2014.01); B23K 26/16 (2006.01); B23K 101/18 (2006.01); B23K 103/04 (2006.01)
CPC B01D 46/0034 (2013.01) [B03C 1/284 (2013.01); B03C 1/286 (2013.01); B23K 26/0838 (2013.01); B23K 26/127 (2013.01); B23K 26/16 (2013.01); B03C 2201/20 (2013.01); B03C 2201/28 (2013.01); B23K 2101/18 (2018.08); B23K 2103/04 (2018.08)] 9 Claims
OG exemplary drawing
 
1. A foreign object capturing device comprising:
a captured body unit having an inlet through which air containing magnetic foreign objects enters and an outlet through which air with magnetic foreign objects removed is discharged; and
a magnetic separation unit including magnetic members, which are linked to the captured body unit and separate magnetic foreign objects from air flowing in the captured body unit using attraction, and having a nonmagnetic member surrounding the magnetic members,
wherein the nonmagnetic member includes:
a nonmagnetic plate portion coupled to the captured body unit and made of a nonmagnetic material; and
a reception pipe portion coupled to the nonmagnetic plate portion, provided as a plurality of pipe members to correspond to the magnetic members provided as a plurality of columns, and made of a nonmagnetic material, and
wherein the reception pipe portion have an anti-drag tap formed to protrude circumferentially on an external surface of the reception pipe portion.