公开(公告)号：US10391558B2

公开(公告)日：2019-08-27

申请号：US15035110

申请日：2013-12-24

Applicant: POSCO

Inventor： Tae-Jong Ha ,  Si-Won Yoon ,  Hae-Kwon Jeong

IPC: B22F9/08 ,  B22F1/00

Abstract: The present invention provides a power manufacturing apparatus capable of preventing particle growth when fine powder is formed through a fluid, the apparatus comprising: a molten steel providing part for providing molten steel; and a cooling fluid spraying part which is arranged at a lower part of the molten steel providing part and sprays a cooling fluid on the molten steel in order to pulverize the molten steel provided by the molten steel providing part, wherein the cooling fluid spraying part forms a first flow for cooling the molten steel so as to pulverize the molten steel and a second flow for forming a descending air current in the molten steel.