| 摘要 |
PROBLEM TO BE SOLVED: To remove scale or suspended matter contained in circulating water for reusing cooling water subjected to rolling before circulating water enters a cooling tower. SOLUTION: In a method for treating direct cooling water circulated to be used in a rolling factory, in order to again subject direct cooling water to rolling after coarse particles contained in direct cooling water, which is subjected to cooling and returned to a sedimentation basin being a water treatment equipment 1, are sedimented, the centrifugal separator 5 provided to the rear stage of a strainer 4 for removing foreign matter in direct cooling water is arranged on the way of the route to a cooling tower 7 for cooling direct cooling water. |
