US 12,138,709 B2
Foreign substance collecting apparatus and electrical steel sheet manufacturing facility including same
Seong-Cheol Hong, Pohang-si (KR); Ki-Young Min, Pohang-si (KR); Se-Min Park, Pohang-si (KR); Dong-Geun Kim, Pohang-si (KR); Chang-Ho Kim, Pohang-si (KR); Jung-Moon Kang, Pohang-si (KR); and Oho-Cheal Kwon, Pohang-si (KR)
Assigned to POSCO CO., LTD, Pohang-si (KR)
Appl. No. 17/280,525
Filed by POSCO, Pohang-si (KR)
PCT Filed Sep. 18, 2019, PCT No. PCT/KR2019/012027
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/067671, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 10-2018-0115771 (KR), filed on Sep. 28, 2018.
Prior Publication US 2022/0040790 A1, Feb. 10, 2022
Int. Cl. B23K 26/16 (2006.01); B01D 47/02 (2006.01); B23K 26/364 (2014.01); B23K 101/18 (2006.01); B23K 103/04 (2006.01)
CPC B23K 26/16 (2013.01) [B01D 47/02 (2013.01); B23K 26/364 (2015.10); B23K 2101/18 (2018.08); B23K 2103/04 (2018.08)] 11 Claims
OG exemplary drawing
 
1. A foreign substance collecting apparatus, comprising:
a collection body unit configured to import or exhaust air; and
a mixing unit provided in the collection body unit,
wherein the mixing unit includes:
a mixing chamber portion having washing water and air; and
a guide portion coupled to the mixing chamber portion,
wherein the guide portion includes:
a curved plate member having an immersion portion being immersed in the washing water; and
a vortex forming member coupled to the curved plate member, and protruding towards air-containing space.