Cooling device of hot mill

Abstract

The invention relates to a cooling device of a hot mill, belonging to the field of the processing equipment of water soluable cloth. By adopting the device in the invention, the water soluable cloth which is processed by the hot mill can be rapidly cooled, thereby preventing the water soluable cloth after hot milling from contracting and wrinkling, and ensuring that the water soluable products are flat and even in the appearance, meanwhile, a sleeve is arranged outside a cooling roller and a cloth guiding roller, the sleeve is replaced after the surface of the sleeve is worn. The cost of construction sleeve is expensive, and the roller which is out of service originally can still be used, thereby bringing humorous economic benefits to the iron and steel industry, and avoiding the loss of a large number of energies and substances.

Description

technical field [0001] The invention relates to cooling equipment for a hot rolling mill, which belongs to the field of water-soluble cloth processing equipment. Background technique [0002] In the prior art, before the hot-rolling machine does not add a cooling device, the fiber web is directly rolled by the cloth rolling machine after being hot-rolled by a hot roll. Because the temperature of the hot-rolled fiber web (i.e. water-soluble cloth) is very high, in Shrinkage will occur when rolling, on the one hand, the width of the product will be unstable, on the other hand, it will cause wrinkles on the surface of the product, which will seriously affect the quality of the product. Grinding the surface of the roll, the diameter of the roll and the effective hardness of the surface layer are gradually decreasing, and the surface layer of the roll must be scrapped after grinding a dozen to tens of millimeters. The iron and steel industry has caused great economic losses, cau...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, before the hot-rolling machine does not add a cooling device, the fiber web is directly rolled by the cloth rolling machine after being hot-rolled by a hot roll. Because the temperature of the hot-rolled fiber web (i.e. water-soluble cloth) is very high, in Shrinkage will occur when rolling, on the one hand, the width of the product will be unstable, on the other hand, it will cause wrinkles on the surface of the product, which will seriously affect the quality of the product. Grinding the surface of the roll, the diameter of the roll and the effective hardness of the surface layer are gradually decreasing, and the surface layer of the roll must be scrapped after grinding a dozen to tens of millimeters. The steel industry has caused great economic losses, causing a large amount of energy and material loss to the country

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