Dry-type planishing mill non-contact type roller cleaning method

Abstract

The invention belongs to the filed of cleaning and leveling of strip steel, in particular to a non-contact roll cleaning method for a dry planishing mill. The non-contact roll cleaning method for the dry planishing mill is characterized in that: 1) a first dust suction hood and a second dust suction hood are arranged on a roll gap of an upper working roll and a lower working roll on the outlet side of the dry planishing mill in the flying direction of metallic dust, and suck away the metallic dust, wherein the first dust suction hood is positioned above a strip steel passing line, and the second dust suction hood is positioned below the strip steel passing line; and 2) a third dust suction hood is arranged on a roll gap of the upper working roll and an upper intermediate roll on the inlet side of the dry planishing mill in the flying direction of the metallic dust, and suck away the metallic dust; and a fourth dust suction hood is arranged on a roll gap of the lower working roll and a lower intermediate roll on the inlet side of the dry planishing mill in the flying direction of the metallic dust, and suck away the metallic dust. The method can improve the surface quality of strip steel and cleaning of the rolls and avoid surface damage to the rolls.

Description

technical field [0001] The invention belongs to the field of steel strip cleaning and leveling, and in particular relates to a non-contact roller cleaning method for a dry leveling machine. technical background [0002] The cold-rolled tempering machine produces a large amount of metal dust in the process of dry-strengthening the strip steel. The dust permeates the closed cover of the tempering machine, falls and is adsorbed on the surface of the strip steel, the roll surface of the tempering machine and other equipment, causing Metal dust pollution. During the strip leveling process, the dust is either pressed into the strip, or pollutes the roll surface, which not only reduces the product quality, but also increases the consumption of the leveler rolls. [0003] Looking at domestic and foreign technical merchants and product suppliers in the field of rolling, without exception, they have adopted contact roll cleaning solutions, that is, using roll surface air knife (docto...

AI Technical Summary

Problems solved by technology

[0004] 1. The removed dust and dirt fall to the surface of the roll or strip again, causing secondary pressing;

[0005] 2. Damage the roll, which increases the consumption of the roll in the production process;

[0006] 3. Occupy the originally narrow space of the tempering machine, affecting maintenance;

[0007] 4. Due to the extremely high working speed of the skin pass mill, the rolls cannot be cleaned during the rolling process;

[0008] 5. The pollution problem cannot be solved fundamentally, which seriously restricts the improvement of strip steel quality

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