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A method and device for grinding furnace rolls

A furnace roller and grinding furnace technology, which is applied in the field of grinding furnace rollers, can solve the problems of high safety risks, lowering product quality levels, and taking up a lot of time.

Active Publication Date: 2017-12-26
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hard and large impurities adhere to the surface of the bottom roller in the furnace due to gravity and are difficult to fall off or be smoothed out, resulting in "pit" on the surface of the strip, affecting product quality and reducing the quality level of the product
[0003] The current method to solve the "pit" on the surface of the strip is to manually open the furnace cover to clean the furnace rollers; but this method takes a lot of time, reduces production efficiency, and has high costs and great safety risks

Method used

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  • A method and device for grinding furnace rolls
  • A method and device for grinding furnace rolls

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Experimental program
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Effect test

Embodiment 1

[0054] Corresponding to Embodiment 1, this embodiment also provides a device for grinding furnace rolls, such as figure 2 As shown, the device includes:

[0055] An acquisition unit 21, the acquisition unit 21 is configured to acquire the first speed V1 of a plurality of furnace rollers;

[0056] The detection unit 22 is configured to send a request for modifying the first speed V1 of at least one furnace roll when a pit on the surface of the strip is detected, and allow the response to change the first speed V1 of the at least one furnace roll according to the request. The speed V1 is modified to a second speed V2; the second speed forms a speed difference with the first speed V1;

[0057] A determination unit 23, the determination unit 23 is used to determine that the speed difference conforms to the preset speed difference range, and rub the strip steel through the speed difference of the at least one furnace roller to eliminate the friction on the surface of the strip st...

Embodiment 3

[0073] In practical application, when the user uses the method for grinding the furnace roll provided by the embodiment of the present invention, it can be ground immediately on-line after finding a "pit" in the strip steel.

[0074] Specifically, during operation of the steel strip, a plurality of furnace rollers guide the direction of the steel strip, so that the steel strip keeps moving and is heated in the annealing furnace. During the running process of the steel strip, the user acquires the first speed V1 of the multiple furnace rolls through the industrial computer, and the first speed V1 is the initial speed of the multiple furnace rolls, and the initial speeds of the multiple furnace rolls are the same.

[0075] When the industrial computer detects that there is a pit on the surface of the strip, it can remotely send a request to the user to modify the first speed V1 of at least one furnace roller through the man-machine interface. After receiving the request, the user...

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Abstract

The invention discloses a method and a device for polishing furnace rollers. The method comprises the following steps: obtaining the first speeds of a plurality of furnace rollers; sending a request for modifying the first speed of at least one furnace roller when detecting that a rock pit exists on the surface of a band steel, and modifying the first speed of the at least one furnace roller into a second speed according to a request permission response, wherein a speed difference is formed by the second speed and the first peed; and rubbing the band steel through the speed difference of the at least one furnace roller when determining that the speed difference accords with a preset speed difference range, so as to eliminate the rock pit on the surface of the band steel. According to the method and the device for polishing furnace rollers, the band steel can be polished online without occupying production time, so that the maintenance time is decreased, the product quality is improved and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of cold rolling automatic control, and in particular relates to a method and a device for grinding furnace rolls. Background technique [0002] According to the requirements of the production process, in the continuous annealing and galvanized sheet production line, the furnace roller plays the role of guiding the direction of the strip steel to keep the strip steel in a moving state when it is heated in the furnace. During the production process, there will be impurities in the furnace, some of which are attached to the furnace wall, and the other part is attached to the furnace rollers. The tiny impurities can be smoothed by the tension of the strip, and will not affect production in a short time. However, the hard and large impurities adhere to the surface of the bottom roller in the furnace due to gravity and are difficult to fall off or be smoothed out, resulting in "pit" on the surface of the strip, af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 李文波李冠雄张益滔付友昌侯大伟刘顺明胡建军林英哲王贵阳孙连生谭瑾峰鲍成人宋广林赵志坚何宝泉刘顺心
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD