Spiral guide drainage device in cooling after rolling process of ultra-wide ultra-thick hot-rolled plate coil

Abstract

The invention discloses a spiral guide drainage device in the cooling after rolling process of an ultra-wide ultra-thick hot-rolled plate coil. The device comprises a frame, a power part and a drainage part driven by the power part, wherein the drainage part comprises an upper spiral roller which spans a hot-rolled plate, is positioned on the upper surface of the hot-rolled plate and is provided with spiral guide grooves, and a lower flat roller which is positioned on the lower surface of the hot-rolled plate and corresponds to the upper spiral roller; the left and right spiral guide grooves formed on the upper spiral roller are symmetrically distributed along the center of a roller body, and the spiral lines of the spiral guide grooves rotate outwards when the spiral guide grooves move forwards with the hot-rolled plate; the upper spiral roller and the lower flat roller are driven by a motor and a reduction box thereof; the upper part of the upper spiral roller is provided with a hydraulic screw down mechanism for controlling the position of the upper spiral roller; the upper spiral roller and the lower flat roller are driven by the two synchronous same-speed output shafts of the reduction box driven by one motor; and the rotating speeds of the upper spiral roller and the lower flat roller are consistent with the speed of strip steel.

Description

technical field [0001] The invention relates to a spiral diversion and drainage device in the cooling process of an ultra-wide and ultra-thick hot-rolled plate after rolling, belonging to the technical field of hot-rolling, in particular to a technology for removing residual cooling water on the surface of the hot-rolled plate after the hot-rolled plate is rolled. Background technique [0002] In the production process of hot-rolled coils, in order to improve product quality to obtain higher economic benefits and obtain good mechanical properties, laminar cooling devices are generally used for cooling after rolling. However, in the cooling process of the ultra-wide and ultra-thick coil, the original side blowing method and device cannot clean the surface of the coil due to the ultra-wide and ultra-thick plate surface, which usually results in residues on the surface of the ultra-wide and ultra-thick coil. There is cooling water. Generally, the cooling water is segregated in...

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Problems solved by technology

[0003] The object of the present invention is a spiral diversion drainage device in the cooling process of ultra-wide and ultra-thick hot-rolled plates, which solves the problem that the water remaining on the steel plates cannot be cleaned by current drainage methods and devices such as side spraying and purging. Problems such as plate shape curvature and poor uniformity of mechanical properties of the steel plate

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