Reaction device for removing oxide skin from strip steel

Abstract

The invention discloses a reaction device for removing oxide skin from strip steel. The reaction device comprises a tank body and a tank cover, the two sides of the tank body are provided with squeezing-drying rollers, a plurality of bulge parts are arranged at the bottom of the tank body, a plurality of immersion rollers are further arranged inside the tank body, the height of the immersion rollers is different, strip steel is driven by the squeezing-drying rollers to move along the immersion rollers, the reaction device further comprises a reflecting arc surface, which is arranged below theliquid level, of the squeezing-drying rollers; and a flow turbulence blade is arranged on a bottom plate of the tank body, the flow turbulence blade blows a liquid towards the reflecting arc surface,the tank body is divided into two parts in movement direction of the steel strip, and a flow regulating plate is arranged at the junction of the two parts. The reaction device has the advantages thatdue to the fact that the height of the immersion rollers is different, the stroke of a steel strip in a pickling solution is increased; the plurality of bulge parts are arranged at the bottom of the tank body, and the flow turbulence blade and the reflecting arc surface are additionally arranged, so that the pickling salt solution forms the local rotation, then the pickling salt solution can be more uniform, the non-uniformity of the concentration can be avoided, then the electrochemical reaction can be better carried out, and the reaction speed is further increased.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to an oxide scale removal device. Background technique [0002] On the surface of the cold-rolled stainless steel strip, due to the oxidation annealing process will generate scale, the existing method is to use pickling, but due to the short reaction time during pickling, in order to completely remove the scale, strong acid and oxidation are often used. skin reaction; this resulted in poor surface quality of the steel strip. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a pickling tank with better pickling effect. The tank body is divided into two parts. The plates are separated; this ensures the quality of the strip surface. The specific technical scheme is as follows: [0004] 1. A reaction device for removing scale from strip steel, comprising a tank body and a tank cover, squeezing rol...

AI Technical Summary

Problems solved by technology

[0002] On the surface of the cold-rolled stainless steel strip, due to the oxidation annealing process will generate scale, the existing method is to use pickling, but due to the short reaction time during pickling, in order to completely remove the scale, strong acid and oxidation are often used. Skin reaction; this results in poor surface quality of the strip

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