To eliminate generation of slip, and to remove water even at a high- speed conveyance by driving a wringer roll synchronous with the conveying speed of a metal plate to be conveyed in a condition where water is adhered to the plate when water is removed by the wringer roll.
Upper rolls and lower rolls of three sets of wringer rolls 51-53 are driven by one drive device 54, respectively. No slip is generated between either roll and a hot-rolled steel strip by driving both the upper rolls and the lower rolls. When rolls of a three-wringer roll device 5 is driven, the rolls are controlled so that the peripheral velocity of the rolls is synchronous with the conveying speed of the hot-rolled steel strip by a controller. Water is preferably removed from the metal plate at the outlet side of the wringer rolls by blowing a gas at the position of both ends in the width direction of the metal plate from the obverse and reverse surface sides of the meal plate.
TOKUSHIGE JIROU
NAWATA YUJI
HISHINUMA ITARU
