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Method and device for tracking head part of strip steel

A technology for tracking strips and strips, applied in the field of metallurgy, can solve the problems of strip head tracking failure, reduced generation efficiency, and steel stacking accidents.

Active Publication Date: 2021-06-29
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a method and device for tracking the head of the strip steel, which is used to solve the problem that the strip head cannot be accurately identified when the strip steel is coiled in the prior art. Steel head, which leads to the failure of strip head tracking, which in turn leads to stacking steel accidents, resulting in technical problems of reduced efficiency

Method used

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  • Method and device for tracking head part of strip steel
  • Method and device for tracking head part of strip steel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In order to have a clearer understanding of this technical solution, the coiling process of the strip steel is firstly introduced here. Generally speaking, after the strip comes out of the finishing stand, it passes through layer cooling, flying shear, metal detector (hot metal detector or cold metal detector), pinch roll and coiler in sequence.

[0055] That is to say, after the steel strip comes out of the finishing stand, it is cooled, cut into multiple pieces of steel strip by flying shears, and then passes through the metal detector, and each piece of steel strip is sent into the coiler by pinch rollers for further processing. coiled. In order to accurately identify the head of the strip and avoid steel stacking accidents, this embodiment provides a method for tracking the head of the strip, such as figure 1 As shown, the method includes the following steps:

[0056] S110, when the rolling mode is the headless mode, if it is determined that the current identificati...

Embodiment 2

[0095] Based on the same inventive concept as in Embodiment 1, this embodiment also provides a device for tracking the strip head, such as figure 2 As shown, the device includes:

[0096] The first acquisition unit 21 is used to obtain the first actual distance and the first tracking distance of the strip running if the rolling mode is the headless mode, if it is determined that the current identification value corresponding to the flying shears shear flag is a valid identification value ;The first actual distance is the distance between the flying shears and the metal detector;

[0097] The first determination unit 22 generates a first strip head tracking signal if it is determined that the first difference between the first actual distance and the first tracking distance satisfies the preset distance interval;

[0098]The second acquisition unit 23 is used to obtain the second actual distance and the second tracking distance of the strip running when the detection signal o...

Embodiment 3

[0137] In practical application, when using the method provided in Embodiment 1 and the device provided in Embodiment 2 to coil the strip steel on a certain production line, the realization is as follows:

[0138] In the process of rolling the steel strip, the received rolling mode is identified as 1, indicating that it is a headless mode. When the strip head comes out of the finishing mill, the tracking function of the strip head will be started.

[0139]If it is determined that the current identification value corresponding to the flying shears shear flag is an effective identification value (such as when the current identification value is 1), it is necessary to obtain the first actual distance and the first tracking distance of the strip steel operation at this time; the first actual distance It is the distance between the flying shears and the metal detector. Wherein, the first actual distance is 5.5m.

[0140] Here, the first tracking distance may be determined accordi...

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Abstract

The invention provides a method and device for tracking the head part of strip steel. The method comprises the steps: if it is determined that a current identity value corresponding to a shearing mark position of a flying shear is a valid identity value, acquiring first actual distance and first tracking distance of operation of the strip steel; if it is determined that a first difference value between the first actual distance and the first tracking distance meets a preset distance interval, generating a first strip steel head part tracking signal; when it is determined that a detection signal of a metal detector changes from an invalid identity value to the valid identity value, acquiring second actual distance and second tracking distance of the operation of the strip steel; if it is determined that a second difference value between the second actual distance and the second tracking distance does not meet the preset distance interval, giving up generation of a second strip steel head part tracking signal; and tracking the head part of the strip steel according to the first strip steel head part tracking signal. In such a manner, even if the head part of the strip steel cannot be tracked through the detection signal, the head part of the strip steel is triggered and tracked according to the second strip steel head part tracking signal, and the head part of the strip steel is accurately identified, so that a steel-heaping accident is avoided, and the production efficiency is guaranteed.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method and device for tracking the head of a steel strip. Background technique [0002] The hot-rolled strip endless rolling technology is an innovation in steel production technology. It has made remarkable achievements in improving the strip yield, dimensional and shape accuracy, thin gauge and ultra-thin gauge rolling ratio, etc. The corresponding rolling production line It is a continuous casting and rolling production line. [0003] During endless rolling, the high-speed flying shear cuts the strip according to the required weight of the coil, and then the strip enters the coiler for coiling. During single billet rolling, high-speed flying shears are not required. [0004] In the prior art, the coiler strip head tracking signal is completely determined by the detection signal of the hot metal detector or cold metal detector in front of the coiler, but this method will...

Claims

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Application Information

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IPC IPC(8): B21B38/00B21B37/72
CPCB21B38/00B21B37/72
Inventor 潘彪刘顺东李继新王立辉孟志铎吕梁王永和田炎波刘岩李明辉吕伟亮马硕张文宝
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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