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Strip steel rust removal technology

A strip steel and process technology, applied in the field of strip steel derusting technology, can solve the problems of complex structure of derusting equipment, unsatisfactory derusting effect, large loss of strip steel, etc., achieve good derusting effect and reduce waste acid discharge , high work efficiency

Inactive Publication Date: 2017-11-21
南通市万通钢管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Strip rust removal generally adopts the combination of some mechanical grinding and pickling, but in the prior art, the surface of the strip is generally polished to remove the oxide layer by using a grinding piece, and then it is directly sent to the pickling tank for pickling, not only The grinding part itself will damage the strip steel, and the amount of acid required for pickling is relatively large, resulting in a large loss of the strip steel during the pickling process, unsatisfactory derusting effect, high cost investment, and derusting equipment The structure is complex, the volume is large, and the initial cost is large

Method used

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  • Strip steel rust removal technology
  • Strip steel rust removal technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 Shown a kind of steel strip derusting process, comprises the steps:

[0026] a: Fix the strip steel on the transmission roller 2, and input it to the pretreatment pool 4 of the derusting box 1 under the action of the transmission system 3. The solution in the pretreatment pool 4 is a peeling agent, and the transmission roller 2 drives The strip steel rotates in full contact with the peeling agent to loosen the scale of the strip steel and pretreat the surface of the strip steel. The action of the driving roller 2 is driven by the first driving cylinder 5 installed on the derusting box 1;

[0027] b: The steel strip pretreated in step a is continuously conveyed to the brush device 6 for brushing rust. The brush device 6 includes the first brush roller 7 and the second brush roller 8 arranged in sequence, and the first brush roller 7 and the second brush roller 8 are placed directly above the strip to face the strip, and are driven by the second drive cylin...

Embodiment 2

[0031] like figure 1 Shown a kind of steel strip derusting process, comprises the steps:

[0032] a: Fix the strip steel on the transmission roller 2, and input it to the pretreatment pool 4 of the derusting box 1 under the action of the transmission system 3. The solution in the pretreatment pool 4 is a peeling agent, and the transmission roller 2 drives The strip steel rotates in full contact with the peeling agent to loosen the scale of the strip steel and pretreat the surface of the strip steel. The action of the driving roller 2 is driven by the first driving cylinder 5 installed on the derusting box 1;

[0033] b: The steel strip pretreated in step a is continuously conveyed to the brush device 6 for brushing rust. The brush device 6 includes the first brush roller 7 and the second brush roller 8 arranged in sequence, and the first brush roller 7 and the second brush roller 8 are placed directly above the strip to face the strip, and are driven by the second drive cylin...

Embodiment 3

[0037] like figure 1 Shown a kind of steel strip derusting process, comprises the steps:

[0038] a: Fix the strip steel on the transmission roller 2, and input it to the pretreatment pool 4 of the derusting box 1 under the action of the transmission system 3. The solution in the pretreatment pool 4 is a peeling agent, and the transmission roller 2 drives The strip steel rotates in full contact with the peeling agent to loosen the scale of the strip steel and pretreat the surface of the strip steel. The action of the driving roller 2 is driven by the first driving cylinder 5 installed on the derusting box 1;

[0039] b: The steel strip pretreated in step a is continuously conveyed to the brush device 6 for brushing rust. The brush device 6 includes the first brush roller 7 and the second brush roller 8 arranged in sequence, and the first brush roller 7 and the second brush roller 8 are placed directly above the strip to face the strip, and are driven by the second drive cylin...

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Abstract

The invention discloses a strip steel derusting process, which comprises the following steps: a: installing the strip steel on a transmission roller, and loosening the oxide skin through a peeling agent; b: passing the strip steel treated in step a through a brush The device is rusted; c: when the brush device is used for rusting in step b, the blower blows the scale and blows it down to the recycling bag; d: the derusted strip is transported to the pickling tank for pickling. The present invention adds the step of brushing rust with a brush device before the pickling process, which has good rust removal effect and high work efficiency, and greatly reduces the amount of hydrochloric acid used in the pickling step in the latter step, which can save 50% of hydrochloric acid and reduce waste acid discharge , is conducive to reducing business costs and improving economic efficiency.

Description

technical field [0001] The invention relates to the technical field of strip steel derusting, in particular to a strip steel derusting process. Background technique [0002] Before the strip enters the cold rolling process, the oxide layer on the surface of the strip needs to be removed. Whether the oxide layer is cleaned or not directly affects the quality of the product, the efficiency of product production and the life of the equipment. Therefore, it is necessary to derust the strip steel. Strip rust removal generally adopts the combination of some mechanical grinding and pickling, but in the prior art, the surface of the strip is generally polished to remove the oxide layer by using a grinding piece, and then it is directly sent to the pickling tank for pickling, not only The grinding part itself will damage the strip steel, and the amount of acid required for pickling is relatively large, resulting in a large loss of the strip steel during the pickling process, unsatis...

Claims

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Application Information

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IPC IPC(8): B24B27/033B24B27/00B24B41/00C23G1/08C23G3/02
CPCB24B27/033B24B27/0076B24B41/005C23G1/08C23G3/021
Inventor 陆昌林
Owner 南通市万通钢管有限公司
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