Structure and method for reducing residual oil quantity on surface of rolled strip

The invention belongs to the technical field of cold-rolled strip steel, and particularly relates to a structure and method for reducing residual oil on the surface of a rolled strip. A structure for reducing residual oil on the surface of a rolled strip comprises a rack and rollers, an exhaust fan is arranged at the top of the rack, a rolling oil collecting groove is formed in the bottom of the rack, a partition cover plate is arranged in the rack and arranged on the outer side of the rollers, the rollers comprise working rollers, middle rollers and supporting rollers which are distributed in a mirror image mode, and the partition cover plate is provided with a hopper-shaped cavity at a strip outlet. The opening end, close to one side of the working roller, of the hopper-shaped cavity is attached to the roller face of the working roller, and the interior of the rack is divided into three areas by the partition cover plate, the hopper-shaped cavity and the working roller, namely a partition cover plate inner