Title:
DESCALING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2011/155768
Kind Code:
A2
Abstract:
The present invention relates to a descaling apparatus for effectively removing scales formed on surfaces of hot-rolled steel strips (steel sheets). An embodiment of the descaling apparatus of the present invention comprises: a housing arranged on a hot-rolled steel strip transfer path; high pressure fluid supply means arranged in the housing to supply by injecting a high pressure fluid into the housing; abrasive material injection means arranged in the housing to inject an abrasive material into the housing; and abrasive slurry spray means arranged in the housing to spray, onto the hot-rolled steel strips, abrasive slurry of the high pressure fluid and the abrasive material mixed in the housing. According to the present invention, physical (mechanical) descaling is implemented, scale treatment processes are simplified, and surface roughness of the hot-rolled steel strips can be maintained at an appropriate level, thus enabling eco-friendly and high efficiency descaling. Particularly, the apparatus of the present invention can be applied to hot-rolled steel strip treatment process being performed at high speed.
Inventors:
CHO, Soo-Hyoun (700 Geumho-dongGwangyang-si, Jeollanam-do 545-711, 545-711, KR)
조수현 (전라남도 광양시 금호동 700번지 광양제철소내, 545-711 Jeollanam-do, 545-711, KR)
KIM, Tae-Chul (700 Geumho-dongGwangyang-si, Jeollanam-do 545-711, 545-711, KR)
조수현 (전라남도 광양시 금호동 700번지 광양제철소내, 545-711 Jeollanam-do, 545-711, KR)
KIM, Tae-Chul (700 Geumho-dongGwangyang-si, Jeollanam-do 545-711, 545-711, KR)
Application Number:
KR2011/004201
Publication Date:
December 15, 2011
Filing Date:
June 08, 2011
Export Citation:
Assignee:
POSCO (1 Koedong-dong, Nam-guPohang-si, Kyungsangbook-do 790-300, 790-300, KR)
주식회사 포스코 (경상북도 포항시 남구 괴동동 1번지, 790-300 Kyungsangbook-do, 790-300, KR)
CHO, Soo-Hyoun (700 Geumho-dongGwangyang-si, Jeollanam-do 545-711, 545-711, KR)
조수현 (전라남도 광양시 금호동 700번지 광양제철소내, 545-711 Jeollanam-do, 545-711, KR)
주식회사 포스코 (경상북도 포항시 남구 괴동동 1번지, 790-300 Kyungsangbook-do, 790-300, KR)
CHO, Soo-Hyoun (700 Geumho-dongGwangyang-si, Jeollanam-do 545-711, 545-711, KR)
조수현 (전라남도 광양시 금호동 700번지 광양제철소내, 545-711 Jeollanam-do, 545-711, KR)
International Classes:
B21B45/06; B24C3/22
Attorney, Agent or Firm:
C & S PATENT AND LAW OFFICE (13th Floor, Seocho-Pyunghwa Building1451-34 Seocho-dong, Seocho-gu, Seoul 137-070, 137-070, KR)
Download PDF:
Claims: