Importance

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Abstract

Provided is an apparatus of removing foreign substances from a hot-rolled steel strip, including a reverse direction injection unit provided to inject high-pressure water in the reverse direction of a moving direction of the strip toward the strip moving to the entrance of the winder by the side guide, wherein the reverse direction injection unit includes a plurality of upper reverse direction injection nozzles arranged along a width direction of the strip to inject high-pressure water to an upper surface of the strip, and the plurality of upper reverse direction injection nozzles is arranged such that an interval of the upper reverse direction injection nozzles located in a central area along the above arrangement direction is narrower than an interval of the upper reverse direction injection nozzles located in both edge areas.

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First Claim