Patent ID: 7406850

Claim:
A coolant header for hot rolled strip cooling devices, which cools a hot rolled strip fed from a finish rolling mill, comprising: a body provided with a plurality of discharging holes arranged along the length and width of the hot rolled strip; a coolant pipe provided in the coolant header, with an outlet hole formed on a side surface of the coolant pipe to discharge coolant, wherein the outlet hole is formed at a position which is at an angle ranging from 0 to 30 degrees above a horizontal axis passing through a center of the coolant pipe, so that the coolant is discharged upwards through the outlet hole; an inclined plate placed in front of the outlet hole of the coolant pipe such that the plate is inclined downwards, thus evenly distributing the coolant discharged from the outlet hole over an entire surface of the coolant header; a perforated plate placed above the discharging holes and causing the coolant to flow uniformly; and a flow stabilizing filter placed between the discharging holes and the perforated plate and causing the coolant to flow in a stabilized laminar manner.