Abstract: There is provided a liquid removal device that removes liquid attached to a surface of a steel sheet, the device including a slit nozzle that jets gas to the surface of the sheet, the slit nozzle being installed so as to jet gas from a downstream side toward an upstream side in a movement direction of the sheet that moves relatively to the slit nozzle and being configured in a manner that a jet angle ?, a back face inclination angle ?, and a back face length L of a nozzle back face of the slit nozzle satisfy, ?+??60° and L?20mm, and a gap h between a jetting port of the slit nozzle and the sheet, a slit width d, and nozzle pressure Pn of the slit nozzle satisfy the following relationship: Pn?2.0×1010(h/d)0.6{1/(1+exp(?+??58)+1}?4L?7.

Abstract: [Object] To provide a liquid removal device capable of removing liquid on a steel sheet without using wringer rolls and a drier. [Solution] A liquid removal device that removes liquid attached to a surface of a sheet-like member that moves relatively, the liquid removal device including: a slit nozzle that jets gas to the surface of the sheet-like member; and a gap measurement device that measures a gap between a jetting port of the slit nozzle and the sheet-like member. The slit nozzle is installed so as to jet gas from a downstream side toward an upstream side in a movement direction of the sheet-like member that moves relatively to the slit nozzle, and is configured in a manner that a jet angle ?, a back face inclination angle ?, a back face length L of a nozzle back face, a gap h, a slit width d, and nozzle pressure Pn of the slit nozzle satisfy the following relational formulas. P n ? 2.0 × 10 10 ? ( h ? / ? d ) 0.