DEVICE OF A UNIFORM LAMINAR FLOW FOR COOLING HOT STEEL STRIP EQUIPPED TO DESCALER

摘要

PURPOSE: A device for uniformly cooling a hot rolled steel sheet is provided to reduce the time for air cooling by cooling a hot rolled steel sheet by uniformly spraying cooling water to the hot rolled steel sheet. CONSTITUTION: A device for uniformly cooling a hot rolled steel sheet comprises a descaling unit(110) and a cooling-water spraying unit(130). The descaling unit removes scales from a steel sheet(S). The descaling unit receives water from the outside. The descaling unit sprays high pressure water to the surface of the steel sheet. The cooling-water spraying unit approaches the descaling unit. The cooling-water spraying unit transfers the water to the descaling unit to cool the surface of the steel sheet. The cooling-water spraying unit comprises a cooling-water pipe(132) and a cooling-water spraying nozzle(134).