Vertical type continuous band steel surface scale cleaning line

Abstract

The invention discloses a vertical type continuous band steel surface scale cleaning line. The vertical type continuous band steel surface scale cleaning line comprises a band steel unrolling machine, a welding machine, a vertical overturning machine, a levelling machine, a band steel surface cleaning device, a tri-tension roller leveling machine, a horizontal overturning machine and a band steel rolling machine. The band steel surface cleaning device comprises a cleaning chamber with a band steel carrier roller horizontally arranged at the bottom, the centers of the two end walls of the cleaning chamber are provided with a band steel inlet and a band steel outlet longitudinally along the longitudinal direction, at least two rows of water and sand mixing ejector units communicated with an external high-pressure water inlet pipe and a sand inlet pipe are fixedly arranged along the length direction of the two side walls in the cleaning chamber at intervals, and water cleaning nozzles communicated with the external water inlet pipe are symmetrically arranged on two sides of the cleaning chamber close to the band steel outlet. The vertical type continuous band steel scale cleaning line has the advantages of compact structure, high production efficiency and low cleaning cost, hot rolled band steel surface scale is high in one-step cleaning degree, the pickling and dry sand blasting and cleaning process can be completely substituted, and the technical requirements of subsequent cold rolling production are met.

Description

technical field [0001] The invention relates to equipment for cleaning scales on the surface of strip steel, in particular to a vertical continuous production line for cleaning scales on the surface of strip steel. Background technique [0002] Cold-rolled steel strip (cold-rolled plate) is a variety of thin steel plates (thickness generally between 0.1 and 2 mm) that are rolled into various types of thin steel plates (thickness is generally between 0.1 and 2 mm) based on hot-rolled plates as raw materials at room temperature. Cold-rolled sheets are widely used in various industries such as aviation, trains, automobiles, home appliances (refrigerators, washing machines, etc.), building materials, stationery, and food packaging. Since the raw material of cold-rolled strip steel is hot-rolled strip steel, there will be a layer of hard and brittle oxide layer (mainly iron oxide: FeO and Fe from the inside to the outside) on the surface. 3 o 4 solid solution layer, Fe 3 o 4 ...

AI Technical Summary

Problems solved by technology

However, the cleaning effect of this method is not good, the cleanliness of the steel strip surface after cleaning is low, and the dust generated during work is large, which not only pollutes the environment, but also seriously endangers the health of operators.

[0003] Since the above two methods are to clean the strip steel flat, the waste under cleaning is not easy to remove, which will also affect the cleaning quality of the strip steel surface

Images