公开(公告)号：US20150122083A1

公开(公告)日：2015-05-07

申请号：US14400908

申请日：2013-05-13

Applicant: POSCO

Inventor： Ja Yong Choi ,  Seung Min Han ,  Sun Koo Kim ,  Hee Ho Lee ,  Sang Yuel Jung ,  Young Jong Seo

IPC: C21C7/00 ,  B22D41/00

CPC classification number: C21C7/00 ,  B22D1/00 ,  B22D11/116 ,  B22D11/118 ,  B22D41/00 ,  B22D41/08 ,  C21C7/0075 ,  C21C7/06 ,  C21C7/076 ,  Y02P10/242

Abstract: Provided are a method and a refining device for producing molten steel of outstanding cleanliness, and more particularly provides a method and device for refining inclusions by forming droplets from molten steel and dropping same into slag during pre-processing in a continuous casting process in a steel-making process. Also, provided is a method for producing high cleanliness molten steel comprising a molten-steel supply device for supplying molten steel and a molten-steel refining device for containing and refining molten steel poured into the molten-steel supply device, wherein the method comprises: a molten-steel pouring step in which molten steel is poured from the molten-steel supply device into the molten-steel refining device; a droplet-forming step in which the molten steel which has been poured in is formed into droplets in the molten-steel refining device; a slag-pass-through step in which the molten steel which has been formed into droplets is dropped so as to pass through slag; and an inclusion-removing step in which residual inclusions in the molten steel, which has been formed into droplets, are removed while passing through the slag.

Abstract translation: 提供了一种用于生产出色清洁度的钢水的方法和精炼装置，更具体地提供了一种用于在钢的连续铸造工艺中的预处理中从钢水中形成液滴并将其滴入炉渣中来精炼夹杂物的方法和装置 制造过程。 此外，还提供了一种生产高清洁度钢水的方法，其包括用于供应钢水的钢水供应装置和用于容纳和精炼浇注到钢水供应装置中的钢水的钢水精炼装置，其中该方法包括： 将钢水从钢水供给装置注入钢水精炼装置的钢水浇注工序; 在钢水精炼装置中，已投入的钢水形成液滴的液滴形成工序; 将已形成液滴的钢水落下以通过炉渣的渣渣通过工序; 以及夹杂物去除步骤，其中已经形成为液滴的钢水中的残留夹杂物在通过炉渣时被去除。

公开(公告)号：US09752202B2

公开(公告)日：2017-09-05

申请号：US14400908

申请日：2013-05-13

Applicant: POSCO

Inventor： Ja Yong Choi ,  Seung Min Han ,  Sun Koo Kim ,  Hee Ho Lee ,  Sang Yuel Jung ,  Young Jong Seo

IPC: B22D41/00 ,  C21C7/00 ,  C21C7/076 ,  B22D11/118 ,  B22D41/08 ,  B22D1/00 ,  B22D11/116 ,  C21C7/06

CPC classification number: C21C7/00 ,  B22D1/00 ,  B22D11/116 ,  B22D11/118 ,  B22D41/00 ,  B22D41/08 ,  C21C7/0075 ,  C21C7/06 ,  C21C7/076 ,  Y02P10/242

Abstract: Provided are a method and a refining device for producing molten steel of outstanding cleanliness, and more particularly provides a method and device for refining inclusions by forming droplets from molten steel and dropping same into slag during pre-processing in a continuous casting process in a steel-making process. Also, provided is a method for producing high cleanliness molten steel comprising a molten-steel supply device for supplying molten steel and a molten-steel refining device for containing and refining molten steel poured into the molten-steel supply device, wherein the method comprises: a molten-steel pouring step in which molten steel is poured from the molten-steel supply device into the molten-steel refining device; a droplet-forming step in which the molten steel which has been poured in is formed into droplets in the molten-steel refining device; a slag-pass-through step in which the molten steel which has been formed into droplets is dropped so as to pass through slag; and an inclusion-removing step in which residual inclusions in the molten steel, which has been formed into droplets, are removed while passing through the slag.